JPH08232530A - Engaging tool for door - Google Patents

Abstract

PURPOSE: To smooth the operation of an engaging body by forming a sliding groove to the engaging body fitted and slid between both ribs formed at the rear of a pushing section and used for preventing deformation. CONSTITUTION: A moving piece 20 and a cam plate 25 are pushed into a case 18 by pushing a door, a sliding-fitting projection 26 is slipped off from the engaging section 56 of the guide inclined plane 45 of a central protruding section 47, and the moving piece 20 is moved to the opening section 28 side again when the pushing of the door is stopped. The sliding-fitting projection 26 reaches the rear end 46 of the central protruding section 47 along the central protruding section 47, and is guided near a central section by a guide projection 57 for recovering a place, and the next locking operation is prepared. An engaging body 19 is moved forward with the movement of the moving piece 20, the rear end 42 of the engaging body 19 is shifted downward along the guide groove of the case 18, and an engaging section 27 is moved to an upper section in a seesaw manner with the movement of the rear end 42 and held into the moving piece 20. The engaging body 27 is slid as a sliding groove 68 is left as it is fitted to the rib of the moving piece 20 in the opening and closing of the door, and operated smoothly without being displaced to the left and the right.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, when opening and closing a door without a handle, simply presses the door in one direction.
The present invention relates to a door lock used to extend a door to a position convenient for opening and closing.

[0002]

2. Description of the Related Art As a conventional door locking device of this type, there is one described in the specification of Japanese Patent Application No. 1-93002 filed by the present applicant. This is the tenth example showing the embodiment.
Referring to FIG. 11 and FIG. 11, a case 4 having one end opened and fixed to the box main body, and an engagement portion 6 having a tip 3 engaging with a strike 3 fixed to the inside of the door 2 bent at a right angle. The engaging body 5 that it has, a moving element 7 that supports the engaging body 5 so as to be swingable in the vertical direction, and is housed inside the case 4 so as to be slidable forward and backward, and a spring seat provided at the rear portion of the case 4. 8
And a spring seat (not shown) provided on the moving element 7 between the compression spring 9 and the moving element 7 between one inner surface 11 of the case 4 facing the cam 10 and the moving element 7. The cam plate 12 is slidable to the left and right on the inner surface 11 side, and the sliding projection 13 is fixed to the inner surface 11 of the case 4, and the engaging body 5 is a guide groove of the case 4. The engaging portion 6 projects to the outside of the moving element 7 only when the strike 3 is locked by being guided to 14, and the engaging portion 6 is housed in the moving element when the strike 3 is released. It was done. Since the shape of the strike 3 is simple, even if there is some burrs on the strike 3 and the engaging body 5, this has little influence on the locking / releasing operation, and the mounting position accuracy of the engaging body 5 with respect to the strike 3 is not so severe. There were advantages such as being unnecessary.

[0003]

However, in this conventional door locking device, the pushing portion 15 of the moving element 7 is prevented from being deformed, and the engagement body 5 is prevented from being displaced to the left and right. Therefore, since the side wall 16 is provided, the case 4 that covers the moving element
Since the head portion 17 becomes large in the width direction and occupies the space in the door, it is desired to reduce the size in the width direction. The present invention has been made to solve the above problems, and an object of the present invention is to provide a door locking device that can reduce the size of the head without compromising strength or operation. is there.

[0004]

The present invention employs the following constitution in order to achieve the object. In other words, it consists of a case that has a locking mechanism built in and is fixed to the box body, and a strike that is attached to the inside of the box door and held by the locking mechanism. A mover that slides in the case against the spring pressure and stops at both axial front and rear positions in the case, and a tip that is slidably attached to the mover in the vertical direction and engages and disengages with the strike. Is composed of an engaging body having a bent engaging portion, and a cam plate mounted between the inner surface of the case and the mover so as to be slidable left and right on the mover, and the mover is a side surface of the pushing portion. A rib for guiding and preventing deformation is formed on the back surface of the pushing portion, and a sliding groove fitted to the rib is formed on the upper portion of the engaging portion of the engaging body.

[0005]

[Operation] According to the present invention, even if the side wall of the pushing portion is omitted, the strength is the same as that of forming the side wall by the deformation preventing rib formed on the back surface (inner surface) of the pushing portion. In addition to being able to maintain, the rib fits in the circumferential groove of the engaging body and acts as a guide to function as a centering and slides, so that the engaging body can perform a smooth operation without being laterally displaced.

[0006]

EXAMPLES Next, examples of the present invention will be described with reference to the drawings. 1 is an exploded perspective view showing an embodiment of the present invention, FIG. 2 is a cutaway perspective view of the member (case) of FIG. 1, and FIG. 3 is a cutaway perspective view of the member (moving element) of FIG. It is a figure and Drawing 4 is a perspective view showing the shape of the strike of the example of the present invention. 5 and 6 are side and center longitudinal cross-sectional views showing the usage state of the embodiment of the present invention, and FIG.
Indicates the released state. FIG. 7 is a vertical cross-sectional view showing a usage state (at the time of locking) of the embodiment of the present invention. 8 is a plan view of the member (cam plate) of FIG. 1, and FIG. 9 is a view of FIG.
It is -A sectional drawing. As shown in FIG. 1, the door locking device of the embodiment of the present invention includes a case 18 having one end open, and a tip 3 that engages with a strike 3 (see FIGS. 4 to 6) fixed to the inside of the door 2. An engaging body 19 having an engaging portion 27 that is bent at a right angle, and a mover 20 that supports the engaging body 19 in a vertically swingable manner and is housed inside the case 18 so as to be slidable back and forth. Spring seat 21 provided at the rear of the case 18
The compression spring 9 mounted between the spring seat 22 provided on the engagement body 19 (see FIG. 2) and one movable inner surface 24 of the case 18 facing the cam 23 described later and the mover 20. It comprises a cam plate 25 that slides to the left and right on the inner surface 24 side of the child 20, and a sliding projection 26 that is fixed toward the inside of one inner surface 24 of the case 18.
The case 18 is a square tube having an opening 28 on one side in the axial direction and the other end 29 closed, and the pushing portion 58 of the moving element 20 can be made smaller in the width direction as will be described later. The portion 38 is also downsized in the width direction. Therefore, the opening 28 is slightly widened in the width direction, and the outer side thereof extends axially toward the rear end to form a slight step portion 30 to end the widened portion. An elastic locking piece 31 is projected outward at an appropriate distance from the portion following the step portion 30. Inner surface 3 facing one inner surface 24 of case 18
2 is formed with a guide groove 33 for guiding the moving element 20 back and forth, and a cutting portion for causing the engaging portion 27 of the engaging body 19 to project outward and downward of the moving element 20 at the front portion (spreading portion). A notch 34 is provided. At the back of the case 18, the mover 20 is provided with the case 18 by the repulsive force of the compression spring 9.
A locking step 36 (see FIG. 5) for locking a stopper 35 provided on the moving element 20 described later is provided so as not to jump out of the table. The sliding protrusion 26 provided on one inner surface 24 of the case 18 is a parallelogram having inclined surfaces whose front and rear directions are the same, and the bottom of the parallelogram is the case 1.
8 is formed so as to be parallel to the longitudinal direction.

The mover 20 is slidably inserted from the opening 28 of the case 18, and is a reverse groove type pusher for accommodating the engaging portion 27 of the engaging body 19 in the front part of the mover 20. Part 58
And a sliding part 59 on the opposite side (rear part) of the pushing part 58.
Is provided integrally. The lower end 63 of the flange 62 on the side opposite to the web 61 with respect to the tip 60 of the pushing portion 58 has a smaller thickness and is further bent in the opposite direction. Further, a second bending piece 65 is formed by bending the pushing portion 58 on the side opposite to the tip 60.
Serves as a projecting piece 65 and faces the hole 40 of the sliding portion 59. The sliding portion 59 is provided with a stopper 35 at a lower portion (a surface opposite to the inner surface 24 side) to be engaged with the engaging step 36 provided on the case 18, and an upper portion (one inner surface 24 side of the case 18). ), Linear guide grooves 37 are provided on the left and right sides, and a pivot support 66 for receiving a pivot shaft 39 of the engaging body 19, which will be described later, is formed on the side surface. Further, the pushing portion 58
A guide / deformation preventing rib 67 is formed along the longitudinal direction of the mover 20 at the center of the back surface (inner side) of the sliding member 68, and the sliding groove 68 of the engaging portion 27 of the engaging body 19 described later is fitted into the rib 67. I am allowed to do so. By forming the rib 67, the side wall of the pushing portion 58 which is included in the conventional door locking device shown in FIG. 10 is unnecessary, and the width direction of the pushing portion can be reduced. It was It should be noted that the tip 60 of the pushing portion 58 is flattened to eliminate a feeling of strangeness when viewed from the front.

The engagement body 19 is provided with a pair of arms 69 having the above-mentioned engagement portions 27 at the tip thereof, and a pair of inwardly-directed portions pivotally supported by the pivot support 66 of the mover 20 at the intermediate portions of the arms 69. The engaging portion 27 is provided so as to be vertically rotatable about the pivot shaft 39 as a fulcrum. A rear end 42 of the engaging body 19 is provided at the rear of the inner surface of the case 18.
A guide groove 43 for guiding the engaging portion 27 at the front end of the engaging body 19 to move up and down like the movement of a seesaw with the pivot shaft 39 as a fulcrum is formed by supporting the above-mentioned structure and moving the rear end 42 up and down. are doing. Further, the engaging portion 27 of the engaging body 19
A sliding groove 68 that fits into the rib 67 of the pushing portion 58 of the mover 20 is formed on the head of the.

The cam plate 25 is formed in a plate shape,
On the lower surface, a protrusion 44 that slides in the guide groove 37 provided on the moving element 20 is provided, and the cam plate 25 is provided so as to be slidable back and forth together with the moving element 20 and the moving element 20.
The upper part of the cam plate 25 is slidable to the left and right, and on the upper surface of the cam plate 25, there is a guide slope 45 having two ridges and one trough in a sawtooth shape on the front side. A substantially heart-shaped central ridge 47 that connects 46 is provided, and a peripheral portion 48 is formed around the central ridge 47 to follow the heart-shaped shape. A slope 49 and steps 50, 51 are formed on the upper surface in one direction. The cam 23 having the circulation passage 52 is formed. A guide slope 53 is formed at the front end of the cam plate 25, which is a part of the edge portion 48, so as to face the guide slope 45 of the central raised portion 47. As shown in FIGS. 8 and 9, the height of the circulation passage 52 formed with the slope 49 and the steps 50 and 51 is a rising slope in (c) when the lowest plate surface is (b). And (e) is lower than (d), and there is a step 50 between them. The height of the passage (e) is the height of the dish surface (b) and the passage (d)
In the middle of, the passage (e) is connected to the height (b) of the plate surface through the step 51.

When assembling the case 18, the mover 20, the cam plate 25, and the engaging body 19, first, the mover 20 is assembled.
The cam plate 25 is placed on the upper surface of the, and the protrusions 44 are engaged with the guide grooves 37 provided on the mover 20 to be combined,
After the pivot shaft 39 of the engaging body 19 is mounted on the side surface of the mover 20 and assembled, the compression spring 9 is fitted between the spring seat 21 provided on the case 18 and the spring seat 22 provided on the mover 20. The moving member 20 having the cam plate 25 and the engaging member 19 mounted thereon is mounted on the opening 2 of the case 18 so that the rib 67 of the moving member is fitted in the sliding groove 68 of the engaging member 19.
When it is inserted from 8, the stopper 35 of the mover 20 is elastically restored and is locked by the locking step 36 of the case 18 to complete the assembly.

The state of use of the door locking device of the above-described embodiment assembled in this manner will be described with reference to FIGS. 5, 6 and 7. As shown in FIG. 7, the door locking member of the above-described embodiment is a hole 54 provided on the front surface of the box body 1 such as a cabinet.
Is inserted into the hole 54, and the protrusion inside the hole 54 is attached to the elastic locking piece 31.
It is fixed by meshing with. On the other hand, a strike 3 protrudes from the door 2 so as to face the lock of the door. As shown in FIG. 6, the engaging portion 27 is housed inside the moving element 20 to prepare for receiving the strike 3. Further, the cam plate 25 is pushed up toward the inner surface of the case by the protruding piece protruding from the hole 40 formed in the moving element 20. In this state, when the strike 3 is pushed forward (when trying to close the door), the inner side of the door 2 comes into contact with the tip 60 of the pushing portion of the moving element 20, and the pushing moves the moving element 20.
Is pressed into the back of the case 18 while compressing the compression spring 9, and accordingly, the engaging body 19 axially attached to the mover 20 is also pressed into the back of the case 18, so that the rear end 42 of the engaging body 19 moves. It is guided by the guide groove 43 provided in the case 18 to move obliquely upward, and by this movement, the engaging portion 27 at the front end of the engaging body 19 moves downward with the shaft 39 as a fulcrum and engages with the strike 3. In addition, the mover 20 is a case 18
When pushed inward, the cam plate 25 on the mover 20 is also pushed inward, and the sliding protrusion 26 advances along the central raised portion 47 and reaches the locking portion 56 of the guide slope 45 to be locked. (See FIG. 7), the door 2 is closed as shown in FIG. With this door closed, the door 2
When a force for pulling is applied, the ribs 67 for preventing deformation prevent the mover 20 and the like from being deformed.

When the door is to be opened next time, the surface of the door 2 is pressed again, and the mover 20 is pushed back into the case 18 by the pressing of the door 2, and the cam plate 25 is also pushed. When the door 2 is pushed inward, the locked state is released and the door 2 can be opened. That is, first, the sliding protrusion 26 is formed on the guide slope 4 of the central raised portion 47.
When the door 2 is released from the locking portion 56 and the pressing of the door 2 is stopped, the mover 20 is again moved toward the opening 28 by the repulsive force of the compression spring 9, and the sliding protrusion 26 is moved along the central raised portion 47. It reaches the rear end 46 of the central raised portion 47 and is guided toward the central portion by the position recovery guide projection 57 to prepare for the next locking operation. The engagement body 19 is moved forward (opening) with the movement of the mover 20,
The rear end 42 moves downward along the guide groove 43 of the case 18, and with this movement, the engaging portion 27 moves upward like the movement of a seesaw and is housed inside the mover 20. , The engagement with the strike 3 is released, and the next strike 3 is prepared for pushing.

In the opening / closing operation of the door, the engaging member 27 slides while the sliding groove 68 fits with the rib 67 of the moving element 20, so that the engaging member 27 can be smoothly operated without being laterally displaced. Further, in the opening / closing operation, the sliding protrusion 26 that has reached the entrance of the passage (c) during the lock operation moves up the passage (c) to the passage (d) and falls into the passage (e). This time,
The sliding protrusion 26 extending from the passage (C) to (D) is the moving element 20.
Since the projecting piece 65 pushes down the pushing force and pushes down the cam plate 25, the cam plate 25 is suddenly dropped when it falls through the step 50 into the passage (e).
Moves upward and a sound is generated between the sliding protrusion 26 and the passage (e). In addition, when the lock is released, the sliding protrusion 26 does not move even when the sliding protrusion 26 is in the passage (e).
Since the cam plate 25 is pushed down by pressing down the pushing force of the projecting piece 65, a sound is similarly generated when dropping from the passage (e) to the dish surface (b). By this sound, a confirmation sound at the time of locking or unlocking can be heard. In the above-described embodiment, the shape of the strike 3 is shown in FIGS. 5 and 6 such that the side sectional view is L-shaped as shown in FIG. It is also possible to use a U-shaped vertical cross section as shown in FIG. Further, in the above embodiment, only one rib 67 of the pushing portion 58 of the mover 20 is shown, but a plurality of ribs 67 may be formed if necessary.

[0010]

Since the present invention is configured as described above, it has the following effects. According to the invention of claim 1, the shape of the head is maintained without compromising the strength or the operation by the function of the deformation preventing rib formed on the back surface of the pushing portion and the sliding groove of the engaging body which slides by fitting on the rib. There is an effect that it is possible to provide a door locking device that can be downsized.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

2 is a cutaway perspective view of the member (case) of FIG. 1. FIG.

3 is a cutaway perspective view of the member (moving element) of FIG. 1. FIG.

FIG. 4 is a perspective view showing the shape of the strike of the embodiment of the present invention.

FIG. 5 is a vertical sectional side view showing the usage state of the embodiment of the present invention, showing the locked state.

FIG. 6 is a vertical sectional side view showing the usage state of the embodiment of the present invention, showing the released state.

FIG. 7 is a vertical cross-sectional view showing a usage state (at the time of locking) of the embodiment of the present invention.

8 is a plan view of the member (cam plate) of FIG. 1. FIG.

9 is a cross-sectional view taken along the line AA of FIG.

FIG. 10 is an exploded perspective view showing a conventional example.

FIG. 11 is a side vertical cross-sectional view showing a usage state of a locking tool of a conventional door.

[Explanation of symbols]

 1 Box Main Body 2 Door 3 Strike 9 Compression Spring 10 Cam 12 Cam Put 13 Sliding Protrusion 18 Case 19 Engagement Body 20 Moving Element 21 Case Spring Seat 22 Moving Element Spring Seat 27 Engaging Section 38 Case Head 58 Pushing Section 60 Tip of Pushing Part 65 Projecting Piece 67 Rib 68 Circumferential Groove

Claims (1)

[Claims] 1. A case comprising a locking mechanism inside and fixed to a box body, and a strike held by the locking mechanism attached to the inside of a box door, the locking mechanism comprising: A slider that slides in the case against the spring pressure by pushing and stops at both axial front and rear positions in the case, and a slider that is slidably attached to the slider in the vertical direction and engages with the strike. An engaging body having an engaging portion with a bent tip that is disengaged, and a cam plate that is slidably attached to the left and right on the moving element between the inner surface of the case and the moving element, and the moving element is pushed. A rib for guiding and preventing deformation is formed on the back surface of the pushing portion, and a sliding groove is formed on the upper portion of the engaging portion of the engaging body so as to fit with the rib. A door lock.