WO2006051691A1

WO2006051691A1 - Support

Info

Publication number: WO2006051691A1
Application number: PCT/JP2005/019736
Authority: WO
Inventors: Mitsuo Sasaki
Original assignee: Mitsuo Sasaki
Priority date: 2004-11-12
Filing date: 2005-10-20
Publication date: 2006-05-18
Also published as: TW200626778A; JP2006138132A; JP3859669B2

Abstract

A support has a base, a pair of ladder bodies, a lock body, and external screw members. Each of the pair of main ladder bodies is rotatably connected at its upper section to the base and is extended downward of the base, and the main ladder bodies are rotatable in the direction in which their lower section approach to and depart from each other. The lock body releasably locks each of the ladder bodies at a predetermined angle. The external screw members are mounted on the base so as to be adjustable in height from the base.

Description

Description Support Technical Field The present invention is a height that is applied to support a formwork for forming a concrete building together with concrete or the like driven into the formwork from below. Support that can be adjusted and that also has a ladder function. BACKGROUND ART Generally, when forming a slab of a concrete building, for example, a plurality of supports are used as a means for supporting a slab formwork. That is, in forming this slab, first, a plurality of supports are arranged at predetermined positions via the steady-rest pipe. After adjusting the height of the upper end of each support to be substantially the same, a corner pipe is bridged between the upper ends of each support. A round pipe is cross-assembled on this square pipe, and a formwork material such as veneer is placed on this round pipe, so that the formwork is assembled at the upper end of each support. It is done. Subsequently, after reinforcing bars and the like are placed in the mold, concrete is driven into the mold, thereby forming the slab. Thus, the support has an extremely important role in maintaining the formwork at the correct level and supporting the weight of the concrete ridges that have been driven in. An example of this type of support is a support pipe with an external thread formed at the upper end, and an internal thread that can be moved in the axial direction by being engaged with the external thread of the support pipe via the internal thread. Support means and support pipe An insertion pipe in which a plurality of pin holes are formed so as to be axially spaced apart from each other and a length such that both ends protrude from the pin holes when inserted into the pin holes. And a support pin. The support means includes a lower support small ring member having an internal thread formed on the inner periphery thereof, and an upper support ring rotatably connected to the lower support member via a thrust bearing. And a fastening member. Rotation handle is attached to the outer periphery of the lower support member. When the insertion pipe is inserted into the support pipe, both ends of the support pin inserted into one of the pin holes are placed on the upper end surface of the upper support member engaged with the support pipe. By this, it is supported so that the height can be adjusted with respect to the support pipe (Japanese Patent Application Laid-Open No. 07-1_1392). According to the above support, even when a heavy load is applied, the lower support member can be rotated very easily, making it easy to adjust the height and improving workability. Excellent effects are obtained. However, since the above support does not have a function as a ladder, it was necessary to prepare a stepladder and ladder in addition to the above support at the construction site. DISCLOSURE OF THE INVENTION An object of the present invention is to provide a novel support that can adjust the height and can support a heavy load from below and can also be used as a ladder. Another object of the present invention is to provide a novel support that can adjust the height, can support a heavy load from below, can be used as a ladder, and can also be used as a support member for a scaffold. Is to provide According to the present invention,

A base, a pair of main ladder bodies each having an upper end rotatably connected to the base and extending downward from the base, and being rotatable in a direction in which the lower ends approach and separate from each other; A lock body that locks each main ladder body to a predetermined inclination angle so that it can be released freely, and at least one that can be raised and lowered on the base so that the height from the base can be adjusted A height adjustment body,

Support, characterized by this, is provided. Each of the main ladder bodies is fixed to a pair of struts extending at a distance from each other, and two ends fixed to the corresponding struts so as to extend parallel to each other at a distance from each other. A plurality of step members, each of which is composed of a pipe, and both end portions of each of the step members are inserted and fixed in lateral holes formed in the corresponding struts. It is preferable that both ends of the hole are open to the outside of the corresponding column. It is preferable that the hook body is rotatably supported by one main ladder body and is releasably locked to the other main ladder body. The pipe constituting each of the step members is formed of a round pipe, and the lock body extends between a pair of rod members extending at a distance from each other and an intermediate portion of each of the rod members. The connecting rod member is fixed to the corresponding rod member at both ends, and a supported hole is formed at one end portion of the rod member and at the other end portion. A hook is formed, and one end portion of each of the opening members is rotatably supported by one step member of one main ladder body through a supported hole, and each hook of the loading member is The main ladder can be detachably fitted to one step member in the ladder body, and each hook of the rod member can be detachably attached to one step member in the other main ladder body. When mated, each of the main ladder bodies It is preferable that it is releasably locked at a fixed inclination angle. The base includes a substrate having a substantially flat upper surface, the height adjusting body includes a male screw member and a support plate member disposed on the upper end of the male screw member, and the male screw member is disposed on the substrate. The support plate member is positioned parallel to the upper surface of the substrate, and each of the main ladder bodies is locked at a predetermined inclination angle by the lock body and is mounted substantially horizontally. It is preferable that the height of the upper surface of the support plate member is adjusted by rotating the male screw member while being placed on the surface. Round pipes are arranged on both sides of the base so that the round pipes extend in parallel to the pivot axis at positions outside the pivot axes of the main ladder bodies. It is preferable that both ends of the holes in each of the holes are open to the outside of the base. The base is located on the rotation trajectory of the upper end of each of the main ladder bodies, and is rotated beyond a predetermined inclination angle in the direction in which the lower ends of the main ladder bodies are separated from each other. It is preferable that a stop means for restricting is provided. Preferably, a pair of auxiliary ladder bodies are provided, each of the auxiliary ladder bodies being detachably connected to the corresponding main ladder body so that the overall height can be adjusted. Each strut of the main ladder body is formed from a round pipe, each of the auxiliary ladder bodies is a pair of struts extending at a distance from each other, and extending parallel to each other between the struts. A plurality of step members fixed to the corresponding struts at both ends, and each supporting strut body is formed of a round pipe having a larger diameter than the main straddle body struts, Auxiliary ladder Between the upper end of the column in each of the bodies and the lower end of the column in the corresponding main ladder body, the upper end of the column in each auxiliary ladder body is detached from the lower end of the column in the corresponding main ladder body. It is preferable that they can be freely fitted and can be connected to each other in such a way that a plurality of axial positions can be selected and unlocked by a locking means. The locking means includes a plurality of lateral holes formed in the upper end portion of the support column in each auxiliary ladder body with an axial interval, and an axial interval in the lower end portion of the support column in each of the main ladder bodies. The upper end of each support ladder body is removably fitted to the lower end of the corresponding main ladder body so as to be detachable from each other. It is preferable that the lock pins are connected to each other so that the lock pins can be released from each other by detachably fitting the lock pins into the respective horizontal holes aligned on the same axis. The locking means includes a plurality of pairs of locked lateral holes formed at intervals in the axial direction at the upper ends of the columns in each of the auxiliary ladder bodies, and the lower ends of the columns in each of the main ladder bodies. A pair of formed horizontal holes and an elastic locking member attached to the pair of horizontal holes, each of the elastic locking members being inserted into the lower end of the column in each of the main ladder bodies, approximately U A plate spring having a shape and a locking pin extending in opposite directions from both ends of the plate spring. Each of the locking pins in each of the elastic locking members is mainly driven by the spring force of the plate spring. At the lower end portion of each support column of the ladder body, the pair of lateral holes are fitted and locked so as to penetrate from the inside in the radial direction and protrude outward, and the upper end portion of the support column in each of the auxiliary ladder bodies corresponds. Removable to the lower end of the main ladder Each of the locking pins is fitted into the locking lateral hole that is aligned on the same axis by the spring force of the leaf spring so that it protrudes outward from the inside in the radial direction. It is preferable that it is detachably connected by being stopped. Each of the step members in the auxiliary ladder body is composed of a pipe, and both end portions of each of the step members are inserted and fixed in lateral holes formed in the corresponding struts, and both ends of the holes in each of the step members are It is preferable that each of the openings is open to the outside of the corresponding column. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded front view of an embodiment of a support constructed in accordance with the present invention.

Fig. 2 is a side view of the support shown in Fig. 1 as viewed from the right in Fig. 1. FIG. 3 is an enlarged view of the upper end portion of the support shown in FIG. 1, and shows a part of the base in cross section.

FIG. 4 is an enlarged view of the upper end portion of the support shown in FIG. 2, with a part of the base section taken in cross section.

FIG. 5 is a plan view of the support shown in FIG. 3, and is a plan view showing only a base portion with a part cut away.

FIG. 6 is an enlarged plan view of the mouthpiece provided for the support shown in FIG.

7 is a front view of the mouthpiece body shown in FIG. 6 as viewed from below in FIG. 6. FIG. 8 is an enlarged view of part A in FIG.

FIG. 9 is a view taken in the direction of arrow B in FIG.

FIG. 10 is a front view showing another embodiment of a support configured according to the present invention.

FIG. 11 is a side view of the support shown in FIG. 10 viewed from the right in FIG.

FIG. 12 is an enlarged view showing the upper end portion of the support shown in FIG. 10, and is a view showing a part of the base in cross section.

FIG. 13 is an enlarged view of the upper end portion of the support shown in FIG. 11, showing a part of the base in cross section. FIG. 14 is a plan view of the support shown in FIG. 12, and is a plan view showing only a part of the base with a part broken away.

FIG. 15 is a cross-sectional view taken along a line C-C in FIG. 14 and is a cross-sectional view with a part omitted.

Fig. 16 is a diagram simply showing the usage state of the support shown in Fig. 11. FIG. 17 is a front view showing still another embodiment of the support configured according to the present invention.

FIG. 18 is an exploded view of a part of the support shown in FIG.

It is. BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the support according to the present invention will be described below in detail with reference to the accompanying drawings. 1 and 2, a support 100 according to the present invention is rotatably supported by a base 2, a pair of main ladder bodies 4 and 6, and one main ladder body 4. A lock body 8 that is releasably locked to the other main ladder body 6 to lock each of the main ladder bodies 4 and 6 at a predetermined inclination angle, and a height from the base 2 At least one (two in the illustrated embodiment) height adjustment body mounted on the base 2 so as to be movable up and down, and in the embodiment, a male screw member 10 and 1 2 and a height adjusting body provided with support disks 3 4 and 3 8 which are support plate members respectively disposed at the upper ends of the male screw members 10 and 12. The main ladder bodies 4 and 6 are pivotally connected to the base 2 so that the upper end portions of the main ladder bodies 4 and 6 extend downward from the base 2, and the lower end portions thereof are rotatable in directions approaching and separating from each other. . 3 to 5, the base 2 includes a substrate 14 having a substantially flat upper surface 14 a. A relatively long board 1 4 that is rectangular when viewed from above A pair of flanges 16 and 18 facing each other at equal intervals are disposed on a pair of side edges, and a pair of relatively short edges of the substrate 14 facing each other at equal intervals. Flanges 20 and 22 are provided. The flanges 16, 18, 20, and 22 extend from the lower surface of the substrate 14 at a right angle downward by the same length. Longitudinal direction of base 2 (vertical direction in FIG. 5) A pair of support flanges 24 and 26 are provided at both ends at equal intervals in the longitudinal direction of base 2 (left and right in FIG. 5). It is arranged to extend in a straight line parallel to the direction. A reinforcing flange 28 is disposed in the middle portion of the base 2 in the longitudinal direction so as to extend linearly in the width direction. Each pair of support flanges 24 and 26 and the reinforcing flange 28 extend from the lower surface of the substrate 14 downward at a right angle by the same length as the flanges 16 to 2 2. It is the lower surface of both ends in the longitudinal direction of the substrate 14 of the base 2 between the pair of support flanges 2 4 and the flange 20 and between the pair of support flanges 2 6 and the flange 2 2. The nuts 30 and 32 are welded to each other. Corresponding to the female screw (not shown) included in the nuts 30 and 32, a through hole (not shown) having a large diameter is formed in the base plate 14. The female screws (not shown) of the nuts 30 and 3 2 constitute female screws disposed on the substrate 14, respectively. The male screw member 10 is engaged with the female screw of the nut 30, and the male screw member 12 is engaged with the female screw of the nut 32. A support plate member, in the embodiment, a support disk 34 is fixed to the upper end of the male screw member 10, and a head portion 36 having a regular hexagonal peripheral surface is integrally formed at the lower end. A support plate member, in the embodiment, a support disk 38, is fixed to the upper end of the male screw member 12, and a head 40 having a regular hexagonal peripheral surface is formed on the lower end. ing. Each of the support disks 3 4 and 3 8 is positioned above the upper surface 14 a of the substrate 14 and is positioned parallel to the upper surface 14 a. Since the main ladder bodies 4 and 6 are composed of common parts, they are representative. The main ladder 6 will be explained. In the main ladder body 4, the substantially same parts as the main ladder body 6 are denoted by the same reference numerals, and the description thereof is omitted. Referring to FIGS. 1 to 4, the main ladder body 6 includes a pair of struts 50 extending in parallel and spaced apart from each other, and the struts 50 are spaced apart from each other. A plurality of (three in the embodiment) step members 52 are fixed to the corresponding pillars 50 at both ends so as to extend linearly in parallel. Each of the columns 50 is formed of a pipe, in the embodiment, a round pipe. The upper end of each of the pillars 50 is compression-molded and configured by flat plate portions 56 extending in the axial direction, and the flat one surfaces of the flat plate portions 56 are opposed to each other. It is positioned. A supported hole 5 6 a is formed in each flat plate portion 5 6. Each of the supported holes 5 6 a exists on a common axis. Each of the step members 52 is formed of a pipe, in the embodiment, round pipes having the same diameter. The diameter of each step member 52 is smaller than the diameter of each column 50. Both end portions of each of the step members 52 are inserted into horizontal holes 5 4 formed in the corresponding pillars 50 and fixed by welding. Both ends of each hole 5 2 a of the step member 52 are opened to the outside of the corresponding column 50. 8 and 9 show a part of the above configuration. In the main ladder body 6 configured as described above, each flat plate portion 5 6 of the column 50 is inserted into the gap between the pair of the support flanges 2 4 and the pair of 2 6 on the substrate 14, and the supported holes Each of 5 6 a is aligned with a pair of support holes (not shown) formed on the common axis L 1 formed in the pair of support flanges 2 4 and 2 6, and It is rotatably supported. Similarly, in the main ladder body 4, each flat plate portion 5 6 of the column 50 is inserted into the gap between the pair of support flanges 2 4 and the pair of 2 6 on the substrate 14, and the supported holes 5 6 a Each of which is formed on a pair of support flanges 2 4 and 2 6, a common axis L 2 It is aligned with a pair of support holes (not shown) existing above and is rotatably supported by support pins 60. Only one of the support pins 58 and 60 is shown in FIG. Referring to FIGS. 6 and 7, the lock body 8 includes a pair of rod members 6 2 extending in a straight line parallel to each other, and an intermediate portion between the rod members 6 2. The connecting rod members 64 are fixed to the corresponding rod members 62 at both ends so as to extend. Each of the rod members 62 and the connecting rod members 64 are each formed from a pipe, in the embodiment, a round pipe. One end of each of the rod members 6 2 is formed by a flat plate portion 6 6 that is compression-molded and extends in the axial direction, and each flat one surface of the flat plate portion 6 6 faces each other. It is positioned. A supported hole 6 6 a is formed in each flat plate portion 6 6. Each of the supported holes 6 6 a exists on a common axis. The other end of each of the rod members 62 is compression-molded to form a flat hook 68 extending in the axial direction. 1, 6, and 7, the flat plate portion 6 6, which is one end portion of each of the rod members 62, is connected to one main ladder body 4 through the supported hole 6 6 a. The step member 52 is rotatably supported. Further, each hook 6 8 of the rod member 6 2 can be detachably fitted to one step member 5 2 in the other main ladder body 6 from above. As described above, the lock body 8 is mounted integrally with the support 100, and thus contributes to facilitating the installation work of the support 100 and parts management. When each hook 6 8 of the rod member 6 2 is detachably fitted to one step member 5 2 in the other main ladder body 6, each of the main ladder bodies 4 and 6 has a predetermined structure. Locked releasably at an inclination angle (predetermined inclination angle when each of the main ladder bodies 4 and 6 is viewed in the direction of the rotation axis). As shown in FIGS. 1 and 3, in the embodiment, in the state where the support 100 is placed on the horizontal placing surface via the main ladder bodies 4 and 6, the main ladder body is used. 4 and 6 each The pillars 52 in are inclined at the same internal angle of 80 ° with respect to the horizontal mounting surface. In other words, the struts 52 in each of the main ladder bodies 4 and 6 are spaced apart from each other from the top to the bottom with respect to a virtual vertical line passing through the center between each of the main ladder bodies 4 and 6. Thus, each is inclined at the same angle of 10 °. The predetermined tilt angle may be displayed at any angle. As shown in FIG. 3, the rotation of the main ladder bodies 4 and 6 beyond a predetermined inclination angle is caused by the flat plate portion 5 6 in each of the pillars 50 of the main ladder bodies 4 and 6. Are regulated by being brought into contact with the lower ends of the flanges 16 and 18 of the substrate 14, respectively. That is, the flanges 16 and 18 of the substrate 14 are present on the rotation trajectory of the upper end portion (the flat plate portion 5 6) in each of the main ladder bodies 4 and 6, and in each of the main ladder bodies 4 and 6 Stop means for restricting rotation beyond a predetermined inclination angle in the direction in which the lower end portions are separated from each other is configured. Thus, according to the support 100 according to the present invention, when the support 100 is used, the predetermined opening degree of the main ladder bodies 4 and 6 is such that the lock body 8 and the substrate 14 Regulated by both flanges 16 and 18. In the present invention, it is easy to freely set a predetermined inclination angle (a predetermined opening degree of the main ladder bodies 4 and 6) in each of the main ladder bodies 4 and 6 as desired. Needless to say. 1 to 4, each of the main ladder bodies 4 and 6 is locked at a predetermined inclination angle by the lock body 8 and placed on a substantially horizontal placement surface. In this state, by rotating each of the male screw members 10 and 1 2 in one direction and the other direction, each of the support disks 3 4 and 3 8 becomes the upper surface 1 4 a of the substrate 14 On the other hand, it can be moved vertically. As a result, the height of the upper surface of each of the support disks 3 4 and 3 8 is adjusted and the upper surface of each of the support disks 3 4 and 3 8 is adjusted to be positioned on a substantially common horizontal plane. Is done. As can be easily understood from the above description, the height of the support 100 according to the present invention (each of the main ladder bodies 4 and 6 is plugged at a predetermined inclination angle by the hook body 8 and The height from the horizontal mounting surface to the upper surface of each of the support disks 3 4 and 3 8 in a state of being mounted on the substantially horizontal mounting surface) If it is designed in advance so as to be slightly lower than the height of the formwork (for example, slab formwork) for forming the mold, the formwork is supported from below and set to a substantially predetermined height. You can Furthermore, by operating each of the male screw members 10 and 12, the height of the mold can be finely adjusted, so that the height of the mold is finally adjusted to the required level. It is easy to set exactly as shown. In addition, since the formwork is supported from below by the pair of main ladder bodies 4 and 6, the strength for supporting heavy loads can be easily secured, and the rebars disposed in the formwork, the formwork, In addition, heavy loads such as concrete driven into the formwork can be stably and reliably supported from below. The support 100 according to the present invention is such that each of the main ladder bodies 4 and 6 is locked at a predetermined inclination angle by the hook body 8 and placed on a substantially horizontal placing surface. When the main ladder bodies 4 and 6 are viewed from the front (viewing the paper vertically in FIG. 1), the main ladder bodies 4 and 6 are The virtual vertical lines passing through the center between them (the center in the left-right direction in Fig. 1) are symmetrically inclined in a straight line so as to gradually approach upward. Such a configuration makes it possible to use the support 100 as a ladder, so that in addition to the support 100, there is no need to prepare a stepladder, ladder, etc. It is extremely useful in practice because it allows the work of installing or releasing the concrete formwork to be carried out quickly and easily and the construction cost can be reduced. Supports 100 according to the present invention are placed on the construction site with a plurality of them spaced apart from each other, and are opposed to each other at the same height. By placing an elongated plate member on the pair of step members 52 in each of the ladder bodies 4 and 6, it is possible to easily form a scaffold, thus facilitating application and reducing installation time. Contributes to shortening, reducing labor, and reducing construction costs. In the support 100 according to the present invention, when each of the main ladder bodies 4 and 6 and the lock body 8 are formed of round pipes, the weight can be reduced by one person while ensuring the required strength. It contributes to ease of construction, shortening construction time, reducing labor, and reducing construction costs. In support 100, the main ladder bodies 4 and 6 can be brought close to each other so as to substantially overlap each other, which contributes to easier transportation. In the support 100 according to the present invention, each of the main ladder bodies 4 and 6 has a pair of struts 50 extending at a distance from each other and a strut 50 between each other. A plurality of step members 52 fixed to the corresponding pillars 50 at both ends so as to extend in parallel, each of the step members 52 being composed of a pipe, and both ends of each of the step members 52 being Each part is inserted and fixed in a horizontal hole 54 formed in the corresponding column 50, and both ends of the hole in each of the step members 52 are opened to the outside of the corresponding column 50, respectively. Yes. In such a configuration, each of the step members 52 is supported in a state where a plurality of supports 100 are placed on the construction site at intervals in the horizontal and vertical directions. In each of the axially adjacent supports 100, a pair of slats in each of the main ladder bodies 4 and 6 or 6 are positioned substantially coaxially at the same height and spaced from each other. It is possible to insert a slender mouth between the holes of the tep member 5 2 and bridge it. As a result, it is possible to more reliably position the supports 100 adjacent to each other and to stably position each of the supports 100 at a predetermined position. Further, between each of the supports 100 adjacent to each other in the direction orthogonal to the axial direction of each of the step members 52, Similarly, by spanning the elongated rods, a scaffold can be easily formed by placing the elongated plate members on each of the rods facing each other at the same height. These functions contribute to ease of construction, shortening construction time, reducing labor, and reducing construction costs. In FIG. 16, a usage state using the above functions in a plurality of supports 200 described later is simply shown. In FIG. 16, the symbol R indicates an elongated rod, and the symbol P indicates a plate member used as a scaffold. With reference to FIGS. 1 and 2, support 100 is provided with a pair of auxiliary ladder bodies 70 and 72, each of which has a corresponding main ladder body 70 and 72. It is connected to 4 and 6 in such a way that the overall height can be adjusted. With this configuration, the range of the height of the support 100 is expanded, and thus the range of use of the support 100 is expanded, so that practical value is improved. This will be described more specifically. Since each of the auxiliary ladder bodies 70 and 72 is composed of common parts, the auxiliary ladder body 72 will be described as a representative. In the auxiliary ladder body 70, substantially the same parts as those of the auxiliary ladder body 72 are denoted by the same reference numerals, and description thereof is omitted. The auxiliary ladder body 7 2 has a pair of struts 7 4 extending in parallel and linearly spaced apart from each other, and each of the struts 7 4 extends in parallel and linearly spaced from each other. A plurality of (in the embodiment, two) step members 7 6 each having both end portions fixed to corresponding struts 74 are provided. Each of the columns 74 is formed of a round pipe having a diameter larger than that of each column 50 of the main ladder bodies 4 and 6. Between the upper end of each column 7 4 and the corresponding lower end of each column 50 in the main ladder body 6, the upper end of each column 7 4 in the auxiliary ladder body 7 2 corresponds. The main ladder 6 is removably fitted to the lower end of each of the columns 50, and can be connected to each other by selecting a plurality of axial positions by the lock means 80. is there. The stopper means 80 includes a plurality of lateral holes 8 2 formed at axial intervals (equal intervals in the embodiment) at the upper ends of the columns 7 4 of the auxiliary ladder body 72, and a main ladder. A plurality of horizontal holes 8 4 formed at axial intervals (equal intervals in the embodiment) at the lower ends of the pillars 50 in the body 6, and lock pins 8 6 with heads are provided. Yes. A horizontal hole 8 2 in which the upper end of each of the pillars 7 4 in the auxiliary ladder body 7 2 is removably fitted to the lower end of each of the pillars 50 in the main ladder body 6 and is coaxially aligned with each other 8 2 And 8 and 4 are connected to each other by detachably fitting the lock pins 8 6 to each other. Similarly, the auxiliary ladder body 70 is detachably connected to the main ladder body 4. As can be easily understood from the above description, according to the support 100 according to the present invention, the male screw member 10 having the support disk 3 4 and the support disk 3 4 mounted on the base 2. The subtle height can be easily adjusted by using the male screw member 1 2 provided with the main ladder members 4 and 6, and the auxiliary ladder bodies 7 0 and 7 2 are respectively attached. By detachably connecting, the comparatively large height can be easily adjusted, so it is extremely useful in practice. Next, with reference to FIG. 10 to FIG. 15, a support 2 0 0 which is another embodiment of the present invention will be described. Since the basic configuration of the support 200 is substantially the same as the support 100 described with reference to FIGS. 1 to 9, the main differences will be described below. In addition, in the support 2 00 illustrated in FIGS. 10 to 15, the number corresponding to the support 1 0 0 is a number obtained by adding 2 0 0 to the number assigned to the support 1 0 0. (For example, in support 2 0 0, the numbers 2 0 2, 2 0 4 and 2 0 6 are the base 2 in the support 1 0 0, the main ladder body 4 and The main shows the base 2 0 2 corresponding to the ladder body 6 and the main ladder bodies 2 0 4 and 2 0 6. ing). In FIG. 10 and FIG. 11, the auxiliary ladder bodies 2 70 and 2 72 are not shown. The total height of the support 200 is higher than the total height of the support 100. In the base 2 0 2 of support 2 0 0, the width of the substrate 2 1 4 (the width in the horizontal direction in FIGS. 10, 1 2 and 14) and the length in the longitudinal direction perpendicular to the width (see FIG. 14 is the width of the base 2 in the support 100 (the width in the left-right direction in FIGS. 1, 3 and 5) and the length in the longitudinal direction perpendicular to the width (see FIG. In Fig. 5, each length is larger than the vertical length. Inside of both sides in the width direction on the bottom surface of the substrate 2 1 4

(Inside the flanges 2 1 6 and 2 1 8), and the outer positions of the main ladder bodies 2 0 4 and 2 0 6 in the width direction relative to the rotation axes L 2 and L 1 respectively

(More specifically, each of the main ladder bodies 2 0 4 and 2 0 6, the flat portion 2 5 6 of the post 2 5 0, the outer position in the width direction) 5 is fixed so as to extend parallel to the rotation axes L 2 and L 1. Each of the round pipes 2 1 5 extends from one end in the longitudinal direction of the substrate 2 1 4 to the other end, and both ends of the holes in each of the round pipes 2 1 5 are respectively opposite ends of the substrate 2 1 4 It opens outward. Each of the round pipes 2 1 5 extends in parallel with each of the step members 2 5 2, and in addition to the function of reinforcing the base 2 0 2, the step members 5 2 described above are further provided. As in each case, it also has the function of forming a scaffold. Stop pins 2 1 7 are fixed to both ends in the width direction of the substrate 2 1 4 between each of the support flanges 2 2 4 of the base 2 0 2 and between each of the 2 2 6 pairs. ing. Each of the stop pins 2 1 7 is inside the above-mentioned width direction in each of the round pipes 2 1 5, and the flat plate portion of the column 2 5 0 in each of the main ladder bodies 2 0 4 and 2 0 6 2 5 6, arranged outside in the width direction. That is, each of the stop pins 2 17 is on the rotation trajectory of the flat plate portion 2 56 which is the upper end portion of each of the main ladder bodies 2 0 4 and 2 0 6. And a stop means for restricting excessive rotation beyond a predetermined angle in the direction in which the lower end portions of the main ladder bodies 20 4 and 20 6 are separated from each other. There are other embodiments in which such stop means is configured by each of the round pipes 2 15 without providing each of the stop pins 2 17. As can be easily understood by comparing FIG. 2 and FIG. 4 with FIG. 11 and FIG. 13, the main ladder body 6 (and main ladder body 4) strut 50 0 in support 100 Are each configured to extend in parallel with each other, while each of the pillars 2 5 0 of the main ladder body 2 0 6 (and the main ladder body 2 0 4) in the support 2 0 0 is The virtual vertical line passing through the center between each of the pillars 2 5 0 is configured to be inclined at the same angle so that the mutual distance increases from above to below (in the embodiment, , Each with a tilt angle of 10 °). However, the flat plate portion 25 6, which is the upper end portion of each of the columns 2 50, is formed so as to extend vertically. In addition, the predetermined inclination angle of the main ladder bodies 2 06 and 2 0 4 in the support 2 0 0 when viewed in the rotation axis direction is the center between the main ladder bodies 2 0 4 and 2 0 6. Are inclined at the same angle of 15 ° so that the mutual distance increases from the upper side to the lower side with respect to the virtual vertical line passing through the Is also big,). Furthermore, as can be easily understood by comparing FIG. 2 with FIG. 11, each of the struts 50 of the main ladder body 6 (and the main ladder body 4) in the support 100. The number of step members 52 connected to each other is three, whereas the support ladder 200 between the main ladder bodies 20 6 (and the main ladder body 20 4) 2 0 The number of step members 2 5 2 connecting the two is four. The above configuration in the main ladder bodies 2 0 4 and 2 0 6 makes it possible to place the support 2 0 0 more stably on the horizontal placement surface while ensuring the required strength. . Easy to understand by comparing Fig. 2 and Fig. 4 with Fig. 1 1 and Fig. 1 3 As shown, the number of male screw members 1 0 and 1 2 provided on the substrate 1 4 of the base 2 in the support 100 (the number of height adjustment bodies) is 1 each (2 in total). In contrast, the number of male screw members 2 1 0 and 2 1 2 provided on the substrate 2 1 4 of the base 2 0 2 in the support 2 0 0 (and hence the number of height adjustment bodies) Is 2 each (4 total). This configuration makes it possible to support the formwork more stably by the support 200. In FIG. 10 to FIG. 13 and FIG. 16, the height adjusting body is not shown. Further, in FIG. 14, the illustrations of the support disks 2 3 4 and 2 3 8 are omitted. Support 2 0 0 has substantially the same characteristic basic configuration as support 1 0 0, and therefore can achieve substantially the same operational effects as support 1 0 0. It should be noted that the support ladder 200 also uses the auxiliary ladder bodies 2 7 0 and 2 7 2 which are not shown in the same manner as in the support 100, It is possible to further increase the overall height. Also, as mentioned earlier, FIG. 16 shows a plurality of supports 200 using elongated holes of the step members 2 52 2 positioned coaxially with each other. The state of using the board R as a scaffold by inserting the board R and placing the plate member P on the joint R bridged in parallel is shown schematically. FIGS. 17 and 18 show a support 300 which is still another embodiment of the present invention. Since the basic configuration of the support 300 is substantially the same as the support 200 described with reference to FIGS. 10 to 15, the main differences will be described below. It should be noted that in the support 3 00 shown in FIGS. 17 and 18, the number corresponding to the support 2 0 0 is assigned to the number corresponding to the support 2 0 0. 0 For example, in support 3 0 0, the number 3 0 2 and the numbers 3 0 4 and 3 0 6 are the base 2 0 in the support 2 0 0, respectively. 2, Lord The base 3 0 2 and the main ladder 3 0 4 and 3 0 6 are shown opposite the ladder body 2 0 4 and the main ladder body 2 0 6). Support 3 0 0, support ladder 3 7 0 and 3 7 2

3 7 4 each upper end and the main ladder body 3 0 4 and 3 0 6 post 3

Since the hook means disposed between the lower end portions of 50 are substantially the same as each other, hereinafter, the upper end portion of the support 3 7 4 in the auxiliary ladder body 3 70 and the main ladder will be described below. The locking means disposed between the lower ends of the columns 3 5 0 in the body 3 0 4 will be explained. At the upper ends of the columns 3 7 4 of the auxiliary ladder body 3 7 0, the locked lateral holes 3 7 5 are formed. A plurality of pairs are formed at intervals in the axial direction (in the embodiment, at equal intervals). Each pair of locked lateral holes 3 7 5 exists on a common axis perpendicular to the axis of the support 3 7 4. A pair of horizontal holes 3 51 is formed at the lower end of the column 3 5 0 of the main ladder body 30 4. Each of the horizontal holes 3 5 1 exists on a common axis perpendicular to the axis of the support 3 5 0. An elastic locking member 3 5 3 is attached to a pair of horizontal holes 3 5 1 formed at the lower end of the support 3 5 0. The elastic locking members 3 5 3 are inserted into the lower end portions of the leaf springs 3 5 3 A having a substantially U shape and extend from opposite ends of the leaf springs 3 5 3 A in opposite directions. It consists of locking pins 3 5 3 B. The tip of each locking pin 3 5 3 B has a hemispherical shape. Each of the locking pins 3 5 3 B protrudes outward from the inside in the radial direction with respect to the pair of locked lateral holes 3 5 1 by the spring force of the leaf spring 3 5 3 A, respectively. Mating · Locked. The upper end of the pillar 3 7 4 in the auxiliary ladder body 3 7 0 is detachably fitted to the lower end of the pillar 3 5 0 in the main ladder body 3 0 4, and each of the locking pins 3 5 3 B is The spring force of the leaf spring 3 5 3 A penetrates from the inside in the radial direction and protrudes outward to the pair of locked lateral holes 3 7 5 aligned on the same axis. The upper end of the support 3 7 4 in the auxiliary ladder body 3 7 0 is detachably connected to the lower end of the support 3 5 0 in the main ladder body 3 0 4 by being locked. The When the upper end of the pillar 3 7 4 in the auxiliary ladder body 3 70 is fitted into the lower end of the pillar 3 5 0 in the main ladder body 3 0 4 and when it is detached from the lower end, the locking pin 3 Each of 5 3 B is displaced in a direction approaching each other against the spring force of leaf spring 3 5 3 A. According to the above-mentioned locking means, it is not necessary to prepare the lock pins 86 separately, so that assembly work and parts management are facilitated. Note that a ring member 3 71 is fitted and supported at the upper end of the support 3 74 in the auxiliary ladder body 3 70. The inner peripheral surface 3 7 1 A of the region of the lower half of the axial direction of the ring member 3 7 1 has the same inner diameter as the outer diameter of the support 3 7 4, and the region of the upper half The inner peripheral surface 3 7 1 B has an inner diameter slightly smaller than the inner peripheral surface 3 7 1 A, and has an inner diameter substantially the same as the outer diameter of the column 3 5 0 in the main ladder body 30 4. Yes. An annular step 3 7 1 C is formed between the inner peripheral surface 3 7 1 A and the inner peripheral surface 3 7 1 B. The ring member 37 1 is mounted with the inner peripheral surface 37 1 A being press-fitted into the upper end of the support 3 7 4 in the auxiliary ladder body 3 70. With this configuration, the lower end of the column 3 50 in the main ladder body 30 4 can be fitted to the inner peripheral surface 3 7 1 B of the ring member 3 71 substantially without gaps. A stable connection with substantially no gap is ensured between the upper end of the column 3 70 and the lower end of the column 3 5 0. The ring member 37 1 is preferably formed of an appropriate synthetic resin. A cap member 3 7 3 is press-fitted into the lower end of the support 3 7 4 in the auxiliary ladder body 3 700. The cap member 37 3 is preferably formed from a relatively hard synthetic rubber. Such a configuration contributes to stable placement of support 300 on the placement surface. The ring member 3 71 and the cap member 3 7 3 are attached to the respective supports 3 7 4 of the auxiliary ladder bodies 3 70 and 3 72. Support 3 0 0 has substantially the same basic features as support 2 0 0, so support 2 0 0 and therefore support 1 0 0 has substantially the same effect. Can be achieved. In the above-described embodiment according to the present invention, a plurality of height adjusting bodies are disposed on the base (two or four in the illustrated embodiment), but one is provided. Forms are also possible. In the above-described embodiment, the support disk constituting the support plate member is fixed to the upper end of the male screw member. However, there is an embodiment in which the support disk is supported so as to be rotatable relative to the upper end of the male screw member. Furthermore, the lock body is configured to be rotatably supported by one main ladder body and to be releasably locked to the other main ladder body. It is also possible to use an embodiment in which the member is prepared as a member and attached to the main ladder between the main ladders when the support is used. In this embodiment, it is preferable that hooks are formed at both ends of the lock body, and the hooks are detachably fitted to the respective step members of the ladder body.

Claims

The scope of the claims

1. A base and a pair of main ladder bodies, each upper end of which is pivotally connected to the base and extends downward from the base, and whose lower ends are rotatable toward and away from each other. And a lock body that locks each of the main ladder bodies so as to be releasable at a predetermined inclination angle, and at least 1 mounted on the base so that the height from the base can be adjusted. With a height adjustment body,

Support characterized by this.

2. Each of the main ladder bodies is composed of a pair of struts extending at a distance from each other, and struts corresponding to both ends so as to extend in parallel with a space between the struts. A plurality of step members fixed to each other, each of the step members is composed of a pipe, and both end portions of each of the step members are inserted and fixed in lateral holes formed in the corresponding struts, The support according to claim 1, wherein both ends of the holes in each of the step members are opened to the outside of the corresponding support columns.

3. The support according to claim 2, wherein the lock body is rotatably supported by one main ladder body and is releasably locked by the other main ladder body.

4. The pipe constituting each of the step members is formed of a round pipe, and the mouthpiece body includes a pair of rod members extending at a distance from each other and an intermediate portion of each of the rod members. The connecting rod members are fixed to the corresponding rod members at both ends so as to extend between them, and a supported hole is formed at one end of each of the rod members and the other. A hook is formed at the end, and one end of each of the rod members is rotatably supported by one step member of one main ladder body through a supported hole. Each hook can be removably fitted to one step member in the other main ladder body, and each hook of the load member can be separated into one step member in the other main ladder body. When fitted together, each of the main ladder bodies The support according to claim 3, wherein the support is removably opened at a predetermined inclination angle.

5. The base includes a substrate having a substantially flat upper surface, the height adjusting body includes a male screw member, and a support plate member disposed on an upper end of the male screw member, and the male screw member includes: The support plate member is positioned parallel to the upper surface of the substrate as it is engaged with the female screw disposed on the substrate, and each of the main ladder members is locked at a predetermined inclination angle by the mouth plate and The support according to claim 1, wherein the height of the upper surface of the support plate member is adjusted by rotating the male screw member in a state of being placed on the substantially horizontal placement surface.

6. Round pipes are arranged on both sides of the base so as to extend in parallel with the rotation axis at positions outside the rotation axis of each of the main ladder bodies. The support according to claim 1, wherein both ends of the hole in each of the round pipes are open to the outside of the base.

7. The base is located on the rotation trajectory of the upper end of each of the main ladder bodies, and is rotated beyond a predetermined inclination angle in the direction in which the lower ends of each of the main ladder bodies are separated from each other. The support according to claim 1, wherein a stop means for restricting movement is provided.

8. The support according to claim 1, wherein a pair of auxiliary ladder bodies are provided, and each of the auxiliary ladder bodies is detachably connected to the corresponding main ladder body so that the overall height can be adjusted.

9. Each strut of the main ladder body is formed from a round pipe, and each of the auxiliary ladder bodies is parallel to each other with a pair of struts extending at a distance from each other and between the struts. A plurality of step members fixed to the corresponding struts at both ends so that each strut of the auxiliary ladder body is formed from a round pipe having a larger diameter than each strut of the main ladder body. Formed between the upper end of the column in each of the auxiliary ladder bodies and the lower end of the column in the corresponding main ladder body, the upper end of the column in each of the auxiliary ladder bodies is in the corresponding main ladder body. 9. The support according to claim 8, wherein the support is detachably fitted to the lower end portion of the support column, and can be connected to each other so as to be able to unlock each other by selecting a plurality of axial positions by the lock means. .

1 0. The locking means is axially attached to the upper end of the column in each of the auxiliary ladder bodies. A plurality of horizontal holes formed at intervals in the direction, a plurality of horizontal holes formed at intervals in the axial direction at the lower ends of the columns in each of the main ladder bodies, and a lock pin. The upper end of the column in each of the main ladders is removably fitted in the lower end of the column in the corresponding main ladder body, and the lock pin is removably fitted in each of the lateral holes that are coaxially aligned with each other. The support according to claim 9, which is connected to each other so as to be unlocked.

1 1. The locking means includes a plurality of pairs of locked lateral holes formed at intervals in the axial direction at the upper ends of the support posts in each auxiliary ladder body, and the lower end portions of the support posts in each of the main ladder bodies. Each of the elastic locking members is inserted into the lower end portion of the column in each of the main ladder bodies. A U-shaped leaf spring, and a locking pin extending in opposite directions from both ends of the leaf spring, and each of the locking pins in each of the elastic locking members is caused by the spring force of the leaf spring, The lower end of each main ladder body is fitted and locked to the pair of lateral holes so as to penetrate from the radially inner side and protrude outward, and the upper end part of each post of the auxiliary ladder body corresponds. Detach to the lower end of the column in the main ladder Fits freely so that each of the locking pins penetrates from the inside in the radial direction to the locked side hole aligned on the same axis by the spring force of the leaf spring. The support according to claim 9, wherein the support is detachably connected by being locked.

1 2. Each of the step members in the auxiliary ladder body is composed of a pipe, and both end portions of each of the step members are inserted and fixed in lateral holes formed in the corresponding support columns, and both ends of the holes in each of the step members. The support according to claim 9, wherein each of the openings is open to the outside of the corresponding column.