JPH0743401Y2 - Lock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to the provision of a lock tool for locking a moving part such as a drawer in a temporary lock state and a so-called full lock state in a locked state, and more specifically, a metal tool. The present invention relates to a lock tool in which a plastic fitting piece is attached to a lock tool body made of metal to form an engaging / disengaging portion of the lock tool.

[Prior Art] In drawer-type cabinets, various desks, and metal furniture, drawers and the like stored in these cabinets are temporarily held in this storage state, and if necessary, in this storage state. It was used by being locked in a fully-fastened state so that it could be maintained.

Temporary locking of such drawers in the temporarily locked state causes the drawers pushed into the cabinets to stick out in the recoil when they are pushed in, or to be pulled out due to the cabinets being tilted, and the occurrence of earthquakes and other vibrations. For the purpose of preventing inconveniences such as pulling out of the drawer, it is often provided so that the drawer is locked inside the storage of drawers of this kind.

In addition, a lock tool used for this kind of drawer and this lock tool are locked so that the temporary locking of the drawers of this kind in the temporary locking state and the locking of the drawers in the final locking state can be maintained more safely. Both the lock bar and the metal were made of metal, which provided a solid lock state to this type of drawer.

Further, by thus forming the lock tool and the lock bar on which the lock tool is detachably engaged with each other, the lock tool and the lock tool can be repeatedly used for temporary locking or final locking. The lock bar to which the lock tool is locked is not worn.

From this point, a metal locking tool R'as shown in Fig. 11 is pivotally supported in a retractable and retractable manner so that a metal locking tool R'as shown in Fig. 11 is constantly urged in the direction of arrow F '. Incidentally, the engagement groove 101 of the lock tool R'is engaged with the lock bar B'provided at the rear portion of the drawer so as to be engageable and disengageable.

In particular, this type of locking device R'is often provided by sheet metal processing in terms of lock strength and the like, and the back plate portion 102 and the both side plate portions 103 connected to both sides of the back plate portion 102 are provided. , 103, and the cross section is substantially the same.
The plate edge 103a inclined from the groove 101 side toward the back plate 102 side is also engaged with the free end edges of the both side plate portions 103 so that the locking tool R'is undulated with the movement of Similarly, the edge of the groove 101 on the free end side was provided with a plate edge 101a inclined to the free end side.

In such a lock tool, when the drawer is pushed into the storage side of the drawer, the lock bar B'of the drawer abuts on the inclined plate edge 103a on both side plate portions 103 of the lock tool R ',
The locking tool R'is erected against the biasing force of the locking tool R'in the direction of arrow F ', and slides under the locking tool R'to enter the engaging groove 101, and temporarily. Create a locked state.

Further, the drawer locked to this locking device is strongly pulled forward, so that the lock bar B'of the drawer is locked.
Slides on the inclined plate edge 101a of the engaging groove 101, slides this inclined surface to raise the locking tool R ', and the groove 10
Pull out from 1 and pull out the drawer.

Then, the back plate portion 10 of the lock tool R'in the temporarily locked state described above.
It was designed to lock the drawer completely by engaging a lock cam etc. for the final fastening with 2.

[Problems to be solved by the invention] In such a conventional lock tool, the lock bar B'is provided with the plate edge 103a of the lock tool R'and the plate edge each time the drawer is pulled out or in.
Rubbing against the surface of 101a, this edge 103a, edge 10
The surface 1a and the surface of the lock bar B'has been inconveniently damaged and especially scratched. The inconvenience is that the lock tool R'and the lock bar B'are made of metal, and the lock tool R'is a sheet metal material having the both side plate portions 103, 103. Since it could not be made into a smooth and wide surface, its occurrence was particularly unavoidable.

Further, the contact between the lock tool R'and the lock bar B'may damage the surface makeup of the lock tool R'and the lock bar B ', especially the plating film. There is a problem that the lock member R'or the lock bar B'is rusted out from the portion.

The disadvantage of such rusting is that the locking strength of the lock portion is simply deteriorated, and of course, the rusting powder falls and adheres to the documents stored in the drawer. As a locking means, its use was naturally limited.

Further, in the conventional locking method comprising the lock tool R'and the lock bar B ', the contact sound between the lock tool R'and the lock bar B', particularly the unpleasant sliding contact sound peculiar to metal. There was a problem that it was not suitable for use in a quiet living room or office room.

The locking device according to the present invention is intended to eliminate the disadvantages of the conventional locking device and to provide a locking device having the same locking strength as that of the conventional locking device.

[Means for Solving the Problem] In order to achieve the above-mentioned object, the lock device of the present invention comprises a lock device R, a lock device main body R-1, and a lock device main body R-1.
The lock tool body R-1 is composed of a fitting piece R-2 housed in the lock tool body R-1, and the lock tool body R-1 is made of metal and has a back plate portion 1 and a width of the back plate portion 1. It is composed of both side plate portions 2 and 2 provided on both sides of the side, and the cross section thereof is substantially shaped.

The lock body R-1 is rotatably supported by the side plate portions 2 and 2, and the side plate portions 2 and
2 is provided with an engaging groove 3, and a plate edge 2a 'of the engaging groove 3 on the free end side of the lock tool body R-1 is provided on the free end side of the lock tool body R-1. It is an inclined surface toward. Further, the plate edges 2a ″ of the both side plate portions 2 and 2 on the free end side of the lock body R-1 are directed from the engagement groove 3 side to the back plate portion 1 side. It is an inclined surface and constitutes the lock body R-1.

The fitting piece R-2 fitted into the lock body R-1 is
It is made of a plastic molded product, and a protruding flange 4 is provided on at least a part of the width side of the fitting, and the flange 4 is in contact with the plate edges 2a of the both side plate portions 2 of the lock body R-1. Thus, a lock tool R that is fitted and locked in the lock tool body R-1 is configured, and this lock tool R is constantly elastically urged toward the side where the engagement groove 3 is provided. It is as a configuration.

Next, in the invention of claim 2, the lock tool main body R-1 and the fitting piece R-2 fitted into the lock tool main body R-1 are locked so that they are engaged with each other. The engaging holes 5 are provided in both side plate portions 2 of the R-1 and the elastic locking pieces 6 are provided in a protruding shape from the side surface on the width side of the fitting piece R-2 toward the protruding flange 4 side. Between the stopper 6 and the protruding collar 4,
The plate portion between the plate edge 2a of the both side plate portion 2 and the engaging hole 5 is held to form the lock tool R.

[Operation] In the lock device according to the present invention, the lock device R is rotatably and pivotally supported in the engagement groove 3 side in a state of being constantly repelled, and the lock device R is engaged. Since the mating groove 3 portion and the plate edges 2a of the both side plate portions 2 subsequent thereto are covered with the protruding collar 4 of the fitting piece R-2, the locking means such as the lock bar is made of a metal lock tool body. There is no direct contact with the plate edge of R-1.

According to the second aspect of the present invention, the fitting piece R-2 fitted to the lock body R-1 is the locking piece between the engaging piece 6 and the protruding collar 4 of the fitting piece R-2. Since the plate portion between the engagement hole 5 of the main body R-1 and the plate edge 2a of the both side plate portions 2 is held, locking and integration can be easily performed, and the plate can be fitted without rattling.

[Embodiment] Hereinafter, a typical embodiment of the lock according to the present invention will be described with reference to the accompanying drawings.

First, the lock tool R is composed of a lock tool body R-1 and a fitting piece R-2 fitted into the lock tool body R-1, and the lock tool body R-1 is made of metal. , And is provided mainly by sheet metal working, and the fitting piece R-2 is made of plastic and is mainly provided by injection molding.

First, the lock body R-1 has a substantially cross section in which both side plate portions 2 and 2 are formed in a bent shape integrally with both sides of the back plate portion 1. The side is the back plate 1
A shaft hole 7 is provided in each of the plate portions 2b, 2b so as to serve as a shaft portion that can pivotally support the lock body R-1.

Engagement grooves 3 and 3 are provided in the side plate portions 2 and 2. That is, the side of each plate edge 2a of each of the side plate portions 2 and 2 is a recessed portion having the same shape, which is used as the engaging grooves 3 and 3, and the engaging groove 3 is U-shaped. age,
Especially, the plate edge 2a 'on the free end side of the lock body R-1 is
An inclined surface is formed from the bottom of the engagement groove 3 toward the free end side.

Next, the plate edge 2a ″ on the free end side of the both side plate portions 2, particularly on the free end side on which the both side plate portions 2 provided with the engagement groove 3 is located, is the side of the back plate portion 1 of the engagement groove 3 side. It is an inclined surface directed to the side, and a plate edge 2a is formed between the plate edge 2a ″ and the plate edge 2a ′ so as to be gently inclined continuously to the plate edge 2a ″. A plate portion is provided on the plate edge 2a between the plate portion 2b and the engaging groove 3.
2b is provided with a sloping protrusion 8, and this protrusion 8
An engaging recess 9 is formed on the plate portion 2b side.

Further, the both side plate portions 2 are provided with engaging holes used for locking the fitting piece R-2 which is fitted in the both side plate portions 2 and 2 in a rotatable state with the recess 9 as a fulcrum. 5 is this fitting piece R-2
Provided in the direction of rotation of the lock tool body R-
1 is configured.

Next, the fitting piece R-2 has a fitting portion 10 having a shape to be fitted between the back plate portion 1 and the both side plate portions 2 and 2 of the lock tool body R-1, and particularly the both side plate portions. 2 has a surface 10a having a shape along the plate edge 2a on one side of the fitting portion 10.
Projecting collars 4 and 4 are provided on both sides of the. And, this collar 4 is a plate edge 2a of both side plate portions 2 of the lock body R-1.
A part of the plate edge 2a which comes into contact with the lock bar B which will be described later.

Further, the fitting portion 10 of the fitting piece R-2 does not necessarily have to match the shape of the both side plate portions 2, 2 of the locking tool body R-1, and there is play in the locking tool body R-1. Instead, the intermediate part may be hollow, and the intermediate part is hollow to reduce the molding cost and facilitate the formation of the locking piece 6. Therefore, the fitting portion 10 is a groove that fits the engagement groove 3 described above.
Part 11 is divided into a pivotal support side and a free end side, and on this shaft support side, the fitting part 10 is thin and is a fitting part having a shallow groove 13 divided by a partition wall 12. The shaft member 14 can be assembled in the shaft hole 7, and the end of the protruding collar 4 is folded back toward the fitting portion 10 to form a locking collar 4a. . Further, on the other free end side of the fitting portion 10, a deep groove 13 'is divided by a partition wall 15, and the fitting portions 10 which are both side walls of the groove 13' are formed. , A U-shaped groove 16 is provided so that the elastic locking piece 6 is provided from the free end side of the groove 13 ′ toward the flange 4 side.
The free end side of the locking piece 6 separated from the main body portion of the fitting portion 10 is configured to protrude from the surface of the fitting portion 10. The direction in which the engaging piece 6 is provided is the same as the direction in which the engaging hole 5 is provided.

Further, an engaging groove 11 is formed on the surface 10a of the fitting piece R-2, and an insertion portion 17 provided from this groove 11 toward the free end side of the fitting piece R-2.
And a surface 10 on the free end side of the engaging groove 11 is provided.
a'is an inclined surface directed toward the free end side of the fitting piece R-2, and the surface 10a "of the insertion portion 17 is provided with an engagement groove 11 partially or over the front surface. It is an inclined surface from the side toward the side where the groove 13 'is provided.

The locking brim 4a of the fitting piece R-2 is hooked on the projection 8 of the lock tool body R-1 having such a structure, and the locking brim 4a is recessed as shown in FIG. When the fitting piece R-2 is pushed into the lock body R-1 so that the fitting piece R-2 fits inside the lock tool body 9, the fitting piece R-2 is rotated about the locking collar 4a. The locking piece 6 is fitted into the lock tool body R-1, the locking piece 6 is inserted into the engagement hole 5 of the lock tool body R-1, and is locked outwardly from the hole 5 while the collar 4 is a plate. The plate portion between the plate edge 2a and the hole 5 is brought into contact with the edge 2a, and is sandwiched between the locking piece 6 of the fitting piece R-2 and the collar 4, and further,
Since the locking collar 4a and the recess 9 are locked to each other, the lock body R-1 and the fitting piece R-2 are firmly coupled.

The lock tool R thus constructed is the lock tool body R-1.
Of the plate edges 2a of the both side plate portions 2, the portion that comes into contact with the lock bar B is covered with the collar 4 of the fitting piece R-2, and the surface 10a of the fitting piece R-2 is the same as the lock bar B. Of the contact surface.

The lock member R having such a structure is pivotally supported by a shaft member 14 in a retracted storage part such as a drawer (not shown) so that the lock member R can be lifted and lowered.
Always urges toward the engagement grooves 3 and 11, that is, in the direction of arrow F,
Moreover, the stop positioning of the lock tool R is performed so that the downward rotation of the lock tool R is stopped at the insertion position of the lock bar B.

A lock cam C, which is detachably abutted on the surface of the back plate portion 1 of the lock tool R arranged in this manner, is pivotally supported above the lock tool R, and the lock cam C is a cylinder key (on the front side of the drawer). The lock cam C is assembled so that the lock tool R is prevented from standing up.

The embodiment shown in FIGS. 8 to 10 shows a concrete use state of the lock tool R. First, when the cylinder key etc. is in the unlocked state, the lock cam C
Is at a position separated upward from the back plate portion 1 of the lock tool R as shown in FIG. When the drawer or the like is pushed in there, the lock bar B on the inner back side of the drawer comes into contact with the surface 10a ″ of the insertion portion 17 of the lock tool R and moves along this inclined surface to move the lock tool R. , The lock bar R is lifted up against the urging force, and the lock bar B is inserted into the engaging groove 11, so that the lock tool R is urged and sunk toward the lock bar B side, and Lock the lock bar B in the groove 11.

In such a state, when the drawer is pulled out again as shown in FIG. 9, the lock bar B is inclined against the urging force of the lock tool R by the inclination of the lock bar B on the surface 10a 'of the engaging groove 11. When the lock bar B is pulled out from the groove 11 together with lifting and pulling out of the drawer, the lock tool R is returned to the old position so as to be able to cope with push-in locking of the drawer again. .

In addition, with the lock bar B engaged in the lock tool R,
As shown in Fig. 10, when the lock cam C is rotated by operating a cylinder key or the like and the lock cam C is brought into contact with the back plate portion 1 of the lock tool R, even if the drawer is pulled in the direction of arrow f, the lock is locked. There is no protrusion of the tool R, the lock bar B does not slip out of the engagement groove 11 of the lock tool R, and a completely locked state of the drawer is created.

[Effects of the Invention] The locking device of the present invention can be made into a locking device which is free from rust in the conventional locking device or metal sliding contact noise at the time of locking due to the above-mentioned characteristic structure.

Particularly, since the contact surface between the lock tool body R-1 and the lock bar B is constituted by the surface 10a of the fitting piece R-2 made of plastic, the lock bar B or the lock bar B is engaged or disengaged by the lock bar B. No scratches are produced on either side of the lock tool R, and the surface coating such as plating is not destroyed.

As a result, there is no cause of rusting on either side of the lock bar B or the lock tool R, and there is no inconvenience such as stains on the document due to the falling adhesion of the generated rust powder or weakening of the lock part. Have

Further, there is no contact noise such as an unpleasant metallic sound at the time of engaging / disengaging operation with the lock bar B, smooth engaging / disengaging operation is possible, and it is possible to provide a high-quality document cabinet or the like.

Further, since the lock tool R is configured with the metal lock tool body R-1 as a base, the lock portion is not deformed or destroyed even by an undesired engagement / disengagement operation, and a stable locked state is obtained. It is possible to maintain.

In addition, the lock tool R of the invention of claim 2 is a lock tool body R-
1 and the fitting piece R-2 can be assembled simply by fitting the fitting piece R-2, so that the cost of assembling the parts is low.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of parts of a lock device according to the present invention, FIG. 2 is a front view thereof, FIG. 3 is a sectional view thereof, FIG. 4 is a plan view thereof, and FIG. 6 and 7 are perspective views showing an assembled state, and FIGS. 8 to 10 are cross-sectional views of essential parts showing an operating state, and FIG. The figure is a perspective view showing a conventional locking device. R ... Locking tool, R-1 ... Locking tool body, R-2 ...
Mating piece, B ... Lock bar, C ... Lock cam, 1 ...
Back plate, 2 ... Both side plates, 3 ... Engaging groove, 4 ... Tsuba, 5
...... Engagement hole, 6 ...... Locking piece, 7 ...... Shaft hole, 8 ...... Projection part,
9 ... recess, 10 ... fitting part, 11 ... groove, 12 ... partition wall,
13 …… Groove, 14 …… Shaft member, 15 …… Partition wall, 16 …… Groove, 17
…… Insertion part.

Claims (2)

[Scope of utility model registration request] 1. A metal locking device main body having a substantially cross-section, comprising a back plate part and both side plate parts provided on the width side of the back plate part, and fitted and locked in the locking device body. A locking tool comprising a plastic fitting piece, wherein the locking tool main body is rotatably supported by both side plate portions of the lock tool main body and is provided on the both side plate portions. A plate edge on the free end side of the lock tool main body in the engagement groove is an inclined surface directed toward the free end side, and plate edges of the both side plate parts on the free end side of the lock tool main body are the engaging members. The fitting piece has an inclined surface that is inclined from the mating groove side toward the back plate portion side, and the fitting piece has a protruding brim provided on a part of the fitting piece on the width side of the locking piece body. The locking tool is affixed and locked in the locking tool body by abutting the plate edges of the both side plate parts, Locking wing, characterized in that it emitted always elastically on the side provided with Kigakarigomizo. 2. An engaging hole is provided in both side plate portions of the lock tool main body, and an elastic locking piece to be locked in the engaging hole projects from the side surface on the width side of the fitting piece. It is provided so as to project toward the brim side, and a plate portion between the plate edge of each of the both side plate portions and the engaging hole is sandwiched between the projecting brim of the fitting piece and the locking piece. The locking tool according to claim 1.