JPH0357407A - Lifting device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) This invention relates to an elevating device that is optimal for elevating and lowering an upper stand of furniture such as a sink or a washstand that is divided into upper and lower halves. [Prior art and its problems] If furniture such as sinks and washstands are shaped to suit the height of the user, the user's fatigue can be reduced, so in recent years, the above-mentioned It has been proposed that furniture such as sinks and washstands are divided into upper and lower halves, and the height of the upper stand can be adjusted freely. For example, as an example, an elevator IIla consisting of an X-link leg in the lower platform and a telescopic drive source for operating the X-link leg
It has been proposed that the system has a built-in structure. The upper ends of the X-link legs are connected to the upper base to support the upper base from below, and when activated, the upper base is raised and lowered relative to the lower base.

Therefore, according to this conventional proposal, the height of the upper part of the sink can be changed to an arbitrary height only by controlling the operation of the elevating mechanism, that is, the telescoping drive source (a problem to be solved by the invention). However, with this conventional proposal, there was an inconvenience that no one could raise or lower the upper table of the sink while holding it in a flat wooden position. That is, in general, in a sink, the space from the center of the front side of the lower table to the inside thereof is reserved as a storage space, or as a space that allows the sink to be used even when using a wheelchair. Therefore, when the elevating mechanism is disposed within the lower platform, the elevating mechanism is located in a recessed area within the center of the lower platform, and moreover, is disposed toward the frontage of the lower platform. Therefore, the upper stand is supported in a cantilevered structure by the X-link legs, and the front side of the upper stand tends to fall forward, making it impossible to move up and down while maintaining the upper stand in a horizontal state.

Therefore, in order to prevent the upper platform from tilting forward, for example, in addition to the telescopic drive source that operates the X-link legs,
This means that multiple telescopic drive sources that directly support the upper table from below and move it up and down can be installed separately within the lower table. However, in the case of separately arranging a plurality of telescopic drive sources, it is necessary to synchronize the plurality of telescopic drive sources, or the synchronous action requires the installation of a complicated control mechanism. Therefore, together with the provision of multiple telescoping drive sources, the number of parts is increased unnecessarily, which inconveniently increases the cost of the sink itself. (Object of the invention) This invention was devised in view of the above-mentioned circumstances, and its purpose is to provide a simple structure that does not cause a significant increase in cost, and to To provide a lifting device which is most suitable for use as furniture for sinks and washstands and can move up and down while maintaining the table in a wooden flat state.

[Means to solve the problem]

In order to achieve the above object, the structure of the present invention is provided by installing an elevator 6c which is arranged in a lower table on which an upper table is placed so as to be freely seated and is formed to raise and lower the upper table. A telescoping drive source that raises and lowers the upper platform when activated, a pair of main X-link legs that are arranged in the depth direction on the left and right sides of the lower platform and whose upper ends lower when the telescopic drive source is activated, and the lower platform. A sub-X that is arranged in the frontage direction on the back side of the
It is characterized by having link legs. (Function) When the upper platform is raised by the operation of the telescopic drive source, one of the main X-link legs connected to the upper platform operates, and in synchronization with this, the sub-X-link legs operate, In addition, the other main X-link leg operates in synchronization with the operation of the sub-X-link leg.Therefore, the upper platform is raised and lowered while being held horizontally with respect to the lower platform. Since there is only one telescopic drive source and no other, a complicated control mechanism is not required and its operation is extremely simple.

〔Example〕

Hereinafter, how will this invention be explained based on the illustrated embodiment? Explain in detail.

tjSl diagram shows a sink A according to an optimal embodiment of the present invention, and the sink A is connected to an upper table A as its upper part.
．． and a lower stand A2 which is the lower part thereof, and as shown in f:s211M and FIG. 3, the lower stand A2 has an elevating mechanism l.

The E-side stand A2 is separably mounted on the upper surface of the lower stand A2, and is configured to be raised and lowered with respect to the lower stand A2 by a lifting mechanism 1, which will be described later.

In this embodiment, the hi upper stand AI is connected to the sink T,
It has a gas range G adjacent to this (first
Picture reference F! A) In place of the gas range G, other structures such as a wood cutter may be installed.

The lower stand A2 is placed on the floor surface B, and is not fixed to the floor surface B, or may be fixed thereon if necessary.

The space from the center of the front side to the interior of the lower table ^2 is reserved as a storage space or a space where the sink A can be used while sitting in a wheelchair. That is, the elevator al described in vk is arranged in a part forming a thousand-faced U-shape formed by the left and right g4 and 1 sides of the lower platform A2, which corresponds to the remainder of the above-mentioned space by ε. The elevating mechanism 1 includes one telescopic drive source 10 and a right pair of main X link legs 20. 30, and sub-X link legs 40. 50, and the pair of sub-X link legs 40, 511 are connected to each other by connecting rods 60''. In this embodiment, the telescopic drive source IO is a pressure cylinder. It is erected at the corner of the rear side (right side in the illustrated example) of the lower stand A2, and its lower end is connected to the lower bracket I1.
is connected to the inner court of the lower stand A2 via the upper bracket l2, and its upper end is connected to the inner court of the upper stand A2 via the upper bracket l2. (See Figure 3). The hydraulic cylinder serving as the telescopic drive source 10 is telescopically driven by an external operation, that is, an operation for supplying and discharging pressure oil from the outside.

In this embodiment, the hydraulic cylinder serving as the telescopic drive source 1 is installed upright at the right rear corner of the lower stand A2, but this is because, as mentioned above, the upper stand A is Considering that the gas range G is provided on the left side, consideration has been given to prevent the gas range G section from being close to the above-mentioned hydraulic cylinder section, and therefore, the arrangement position of the hydraulic cylinder is essentially arbitrary. h The right pair of main X link legs 20, :lO are arranged in the depth direction on the left and right sides of the lower stand A2, respectively, and support the upper stand A1 from below on both sides, and are connected to the telescopic drive [10]. The upper end is formed to move up and down during operation.

In addition, each of the above main X link legs 20. In this embodiment, 30 is formed in a so-called double structure, and each link member 2I and 22, 2 and 24, 3] and 32, and 33 and 34 constituting the X link are connected to the pin 25. ．． 26
and 35. 36, each assembled into an X-shape. In addition, each of the above pins 25. 26 and 35. To the extent that each X-link is constructed by using X.36, it is preferable to arrange an appropriate bearing member such as a thrust bearing at the intersection. Also, each of the main X link legs 20. 30 is
The rear ends (right end in FIG. 3) of each of the link members 21 to 24 and 3l to 34 are pivotally connected to the lower stand A2 and the upper stand AI. (indicated by reference numerals 51 and 62 in Figure 3). It is pivoted to each part A, A2.

Note that the rear ends of each link member 2N to 24 and 3l to 34, that is, each main X link leg 20. The fixed end of 30 is
As also shown in FIG. 3, the main X-link leg 20. 3
It is desirable that the position is closer to the telescopic drive $10 than the tip position of 0.

Each of the main X link legs 20, :IO is connected to the tip of each sonk member 21-24 and 31-34 (third
(left end in the figure) is movably adjacent to the lower stand A2 and the upper stand A1, and in this embodiment, the rails 63. 54
and 65. Adjacent to 66. Each of the above link members 2
At the tips of 1 to 24 and 31 to 34, there are rollers 2 which also serve as a member to integrally connect the adjacent tips.
7. 28 and 37. 38 is disposed and the roller 27. 28 and 37.38 respectively correspond to the above rails 6:l, 64 and 65. It is designed to slide on the 66 track surface. In addition, the rail 65 disposed on the lower platform ^2.
A stopper 67.
68, and a roller 28.68 corresponding to each stop flange 67.68. By abutting 38,
Each main X-link leg 20. The degree of leg opening when 30 is so-called opened, that is, the upper platform A. It regulates the amount of stagnation. In addition, each of the above rollers 28. 38 in this embodiment is made of hard resin to prevent rust and noise generation during transfer. And the rail 65 disposed on the lower stand ^2 side. 55, each T-plane has a height of 2
If a 1g maintenance mechanism is installed, the upper stand A. It becomes possible to make a wooden plank out of Urakada.

Sub X link leg 40. 50 are respectively arranged in the frontage direction on the left and right sides of the back side in the lower stand ^2. Therefore, main X-link leg 20. 30 are arranged on the left and right sides of the lower stand A2, the lower stand A2
The space from the center of the front side of 2 to the inside is used as storage space. Alternatively, the sink A is secured as a space that allows the sink A to be used while sitting in a wheelchair. Each of the above sub-X link legs 40. 50 are in this example, each having a so-called double structure (
(see Figure 3), each of the link members 41 and 42, 43 and 44 (shown only by the numbers in Figure 2), 51 and 52, and 53 and 54 (shown only by the numbers in Figure 2) that constitute the X link are , bins 45, 46 (indicated only by numbers in FIG. 2) and ss, s
a (see Figure 3), each is assembled to form an X-shape in elevation. Further, each of the sub-X link legs 40, 5b is connected to the rear end of each link member 4l to 44 and 5l to 54 (right a in FIG. 3).
! @) is a pedestal 69.70 arranged on the lower stand A2m and a rail 71.70 attached to the upper stand At side. 72 via brackets (indicated by reference numerals 73, 74, and 75 in FIG. 2), and each of the sub-X link legs 40. 50, the tips of the link members 4l to 44 and 51 to 54 (the left end in FIG. 2) are connected to the respective pedestals Ei9. 70 and each rail 71
．． It is movably adjacent to 72.

At the tips of each of the link members 41 to 44 and 51 to 54, there is a roller 47 which also serves as a member that integrally connects the adjacent tips. 48 and 57. 58 are arranged and the rollers 47 . 48 and 57.58 are the rails 71. 72, and the above-mentioned pedestal 69. It slides on the top surface of 70 as a track surface. In addition, each sub-X link leg 110. Each bin 45.50 in the form of an X-link. 46 and 55.5
The arrangement of bearing members in 6 parts, the rollers 47, 48 and 57 at the tips of each link member 41 to 44 and 5l to 54. Regarding the material of each main X link leg 20. Of course, it is also possible to use the same method as in the case of forming No. 30. A pair of left and right sub-X link legs 40 formed as described above. 50 are connected to each other by a connecting rod 6o, and the operation of one causes the other to operate in synchronization with the operation of one. In this embodiment, the connecting rod 60 has both ends connected to the sub-X link leg 40. The bin 45.50 is arranged to connect the tips of the link members 42 and 52 forming the link member 45. 55
(or 46.56) may be arranged to connect. In the sink A formed as described above, the upper table A1, which is the upper part, moves up and down with respect to the lower table A2, which is the lower part, by the telescopic drive of the telescopic drive source 1o in the elevating mechanism 1. For example, when the telescopic drive source lO is extended, the main X link leg 20. 30, especially each upper end located on the front side of the lower stand A2 is the telescopic drive source 10 indicated by -L.
The upper platform A. rises to follow the expansion of A. The upper platform A is raised while being held horizontally to prevent the upper platform A from rising in a forward tilted state.

When the main X-link leg 20, :lO is activated, that is, when the telescopic drive source IO is extended, the sub-X-link leg 40
, 511 also operate synchronously under the intervention of the connecting rod 60.

As a result, a pair of left and right sub-X link legs 40. 50, the upper platform A1 is raised without being laterally tilted;
Therefore, the main X-link leg 20. 30 will also be operated synchronously, and therefore the upper platform will be raised while being maintained in a horizontal state. 4 and 5 show another embodiment of the elevating mechanism 1 according to the present invention, and this embodiment will be described below. Note that the structure of the sink A is the same as that in the previous embodiment, so a description thereof will be omitted.

In addition, the elevating mechanism l in this embodiment includes one telescopic drive i;tto and a pair of left and right main X link legs 20.
30 and one sub-X link leg 8o, and has a simpler form than the previous embodiment, so the following will focus on the differences.

In this embodiment as well, the telescoping drive source IO is composed of a hydraulic cylinder, and its position is at the sub-X link leg 80, which will be described later. That is, in this example,
Is the sub-X-link leg 80 disposed at the center on the back side of the lower stand A2, or between the link members 81, 8:l that constitute the sub-X-link leg 80, and 82. The shaft members 85.84 and 84. 86 is a telescopic drive source 10
The upper and lower ends of the barrel hydraulic cylinder are connected, and the bracket It, 12 (see Figure 3) is not used as in the previous embodiment, and the upper and lower ends are not connected to the upper stand A and the lower stand A2. ．． The pair of left and right main X links ll120, 30 are constructed in the same manner as in the previous embodiment, so their explanation will be omitted.

As mentioned above, the sub-X link leg 80 is arranged at the center of the back side of the lower stand A2, and also in this embodiment, it is formed in a so-called double structure (see Fig. 5). ，
Link members 81 and 82, 8 and 84, which connect each X link, are connected to pins 87. 88, each of which is assembled into an X-shaped elevation. The sub-X link legs 80 each have a link member 8l.
The rear ends of 84 to 84 (right end in Fig. 4) are respectively lower bases A.
2 and the upper stand^, bracket 89. It is pivotally connected via 90. The sub-X link leg 80 has each link member 8l.
The tips of 84 (the left end in FIG. 4) are the above-mentioned parts A. ，
Rail 91 arranged on A2. It is movably adjacent to 92. At the tip of each of the link members 81 to 84, there is a roller 93 which also serves as a member that integrally connects the tips of each of the adjacent link members 81 to 84. 94 are arranged, the rollers 93 . 9
4 are the rails 91. 92 tracks? Glide across the surface.

Therefore, in the sink A according to this embodiment, as in the case of the above-mentioned embodiment, the upper platform A, which is the upper part, moves into the lower platform 8, which is the lower part, by the telescopic drive of the telescopic drive source IO in the elevating mechanism 1. Go up and down against it. Then, when the telescopic drive source IO is extended and the upper ends of the main X-link legs 20 and IO rise, the sub-X-link legs 80 are also operated in synchronization to prevent the upper stand At from being tilted. It is now possible to raise it as it is. In each of the embodiments described above, the upper part of the sink A. The telescoping mechanism l for raising and lowering the L-side stand At has one telescoping drive source I.
O, and the upper stand A is raised and lowered by the telescopic drive source IO, but in addition to this, a plurality of stay dampers are provided to apply the auxiliary force of the stay dampers to the above upper stand A. It may also be used to assist when platform A1 is raised. In each of the embodiments described above, a stopper is formed on the upper surface of the tip of the rail disposed on the lower stand A2, and each main X link leg 20 is attached to the stopper. Each main X link leg 20 is brought into contact with the roller provided at the tip of the
．． By regulating the degree of opening of the legs 20.30, the lower IT of the upper stand A1 is regulated, but instead of this, the main X-link legs 20. The degree of opening of the legs is controlled by pins, etc., that is, the upper platform A. The amount of fall may be regulated. Further, in each of the embodiments described above, each roller also serves as a connecting member at the tip of each X-link, but instead of this, it is assumed that each roller is individually disposed at the tip of each X-link. Good too.

〔Effect of the invention〕

As described above, according to the present invention, it is possible not only to adjust the upper stand of furniture such as a sink or a washbasin which is divided in advance into an upper stand and a lower stand to a desired height, but also to adjust the upper stand by operating the telescopic drive source. When the platform is raised or lowered, it synchronizes with the operation of the main
Since the sub-X-link legs disposed at the back of the lower table operate, the upper table is raised and lowered while maintaining a horizontal state with respect to the lower table.

Further, according to the present invention, since there is only one telescopic drive source and no other, a complicated control mechanism is not required for the telescopic control of the telescopic drive source, and the cost does not increase. It also has the advantage of being extremely easy to operate. Further, according to the present invention, since a wide space can be secured from the center of the front side of the lower table to the inside, this space can be used as a storage space, or a user sitting in a wheelchair can use the lower part of the sink etc. There is an advantage to being able to walk into the room with every chair.

[Brief explanation of drawings]

1 is an overall perspective view showing a sink according to one embodiment of the present invention, FIG. 2 is a front view showing an embodiment of a lifting mechanism according to the present invention, and FIG. The figure is a side view, and FIG. 4 is a front view showing another embodiment of the lifting mechanism according to the present invention. FIG. 5 is a side view thereof. [Explanation of symbols] 1... Lifting mechanism 10... Telescopic drive source 2 (1
, 3Q...Main X link leg 4ro, 50. 80
...Sub X link leg 50...Connection rod A.
...Sink A1...Upper stand A2...Lower stand Agent Patent attorney Izumi Amano (A1

Claims (1)

[Claims] A lifting device disposed in a lower table on which the upper table is placed so as to be able to be moved up and down, and configured to raise and lower the upper table, a telescopic drive source that lifts and lowers the upper table by its operation;
a pair of main
A lifting device characterized by having a link leg and a sub-X-link leg that is arranged in the frontage direction on the back side of the lower platform and synchronizes the pair of main X-link legs when they are activated.