JP2022071525A - Furniture locking device - Google Patents

Abstract

To provide a furniture locking device which is suitable for locking and unlocking of frameless drawers and doors of furniture such as desks, office furniture, cabinets, and chests of drawers, has simple structure and can be manufactured for low cost, perform the locking and unlocking operation and has made their appearance simple.SOLUTION: In a furniture locking device equipped with a lock mounting body 8 which has a fixed seat 21 that is to be attached to a side wall 4 of furniture 1 with a drawer 2, an engageable contact part 8a at the front of the drawer 2 and is provided with a push cylinder lock 9 that can be attached to and detached from the fixed seat 21 and can be unlocked by key operation, the lock mounting body 8 has the push cylinder lock 9 having a cylinder 11 which is extractable in the direction orthogonal to the contact part 8a, the fixed seat 21 has opposing bent pieces, one of the bent pieces is attached to the side wall 4 of the furniture 1, and on the other bent piece an engagement hole is formed that can be engaged with and disengaged from the cylinder 11.SELECTED DRAWING: Figure 1

Description

The present invention is suitable for frameless drawers of furniture such as desks, office furniture, cabinets, chests of drawers, and for locking and unlocking doors. It concerns furniture locking devices that can be done and that have a simplified appearance.

For example, in a multi-stage cabinet in which multiple housings are placed and connected in a multi-stage manner, multiple drawers housed in the housing can be locked at once, and multiple drawers can be prevented from being pulled out at the same time. , Multiple cabinets with open fronts are placed and connected in multiple stages, and the working pieces are mounted on the inner side surface of each housing so that they can move up and down, and the facing ends of the working pieces adjacent to each other are attached to each other. By connecting to each other, an operating rod facing in the vertical direction is formed, and in any one of a plurality of housings, a block position that prevents the drawer from being pulled forward in conjunction with the drawer and the vertical movement of the working piece, and a drawer. There is a multi-stage cabinet linked to a cylinder lock, which is a locking device provided with a blocking means movable to a release position that allows forward withdrawal, and the operating rod is provided in any housing (for example). See Patent Document 1).

However, in the cabinet, a set of working pieces is mounted on the inside of the side plate of each housing so as to be movable up and down, and the facing ends of the working pieces adjacent to each other are connected to each other to form a working rod. A block means was provided to face the cabinet, and a cylinder lock was provided in the center of the upper cabinet, and the cylinder lock was linked to the operating rod. Since the lock is exposed on the upper housing from beginning to end, there is a problem that the appearance of the cabinet is spoiled.

To solve such problems, a locking device that prevents the opening of multiple drawers as an opening / closing body that can be opened / closed toward the desk body, and has a substantially cross section on the side surface near the edge of the drawer. A character-shaped rail member is fixed, a serrated tooth row constituting a latch mechanism portion is provided on the back surface of the upper plate thereof, and a substantially box-shaped lock member that can be fitted to the rail member is provided. A claw portion that can be engaged with the tooth row is projected inside, a cylinder lock is attached to the lock member, a cam plate is attached to the rotation shaft thereof, and the rotation shaft and the cam plate are operated via the key operation of the cylinder lock. Rotates and pushes down the swinging rod attached to the lock member to enable disengagement between the tooth row and the claw portion, and the tooth row and the claw portion do not engage when the tooth row and the claw portion are engaged. When the lock member is pulled out from the rail member, there is a locking device that engages the tooth row and the claw portion to prevent the lock member from being pulled out, and the lock member that comes into contact with the front surface of the drawer makes it impossible to open the drawer. (See, for example, Patent Document 2).

However, the locking device requires a large number of members, and the configuration is complicated and difficult to manufacture. In addition, the operation of attaching and detaching the lock member and the rail member at the time of locking and unlocking is complicated and time-consuming, and the rail member is on the side surface of the desk body. There is a risk of injury due to scratching of the fingers, and the lock member pulled out from the rail member after unlocking is equipped with a cylinder lock and a swinging rod, so it is large. There was a problem that the weight was heavy and it was inconvenient to handle and store.

Japanese Unexamined Patent Publication No. 2009-22543 Japanese Patent No. 4260336

The present invention solves such a problem and is suitable for frameless drawers of furniture such as desks, office furniture, cabinets, chests of drawers, and for locking and unlocking doors. It is an object of the present invention to provide a furniture locking device that can easily perform these locking / unlocking operations and has a simplified appearance.

The invention of claim 1 has a fixed pedestal attached to a side wall of furniture provided with a drawer, and an engageable abutting portion at the front of the drawer, which can be attached to and detached from the fixed pedestal. In a furniture locking device comprising a lock mounting body provided with a cylinder lock that can be unlocked by key operation, the lock mounting body comprises a push cylinder lock having a cylinder that can appear and disappear in a direction orthogonal to the contact portion. The fixed seat comprises opposing bends, one bend attached to the side wall of the furniture, the other bend having an engaging hole that can be engaged and disengaged with the cylinder, for example a furniture frame with a simple structure. No drawers and doors can be easily locked and unlocked, and the lock / unlock operation can be performed easily. At the same time, the push cylinder lock is located on the side wall of the furniture so as not to spoil the appearance of the drawers and doors. ..
According to the second aspect of the present invention, a fixed seat accommodating space in which a fixed seat can be inserted and removed from the side is provided inside the lock mounting body, a cylinder sliding hole is opened in the accommodating space, and a cylinder is inserted in the sliding hole. It is possible to appear and disappear, and the lock mounting body can be easily inserted and removed from the fixed seat, and the cylinder can be moved up and down and the push cylinder lock can be easily locked and unlocked.

According to the third aspect of the present invention, a locking piece that can be engaged with the other bent piece is provided in the fixed seat accommodation space, the operation of the other bent piece is restricted, and the cylinder and the engaging hole are stably engaged and disengaged. The operation is feasible.
According to the fourth aspect of the present invention, a cushioning sheet is attached to the abutting portion to prevent scratching due to direct contact between the abutting portion and the front portion of the drawer when the push cylinder lock is locked.
According to the fifth aspect of the present invention, the drawer is suitable for a frameless type, and it is possible to cope with a certain door thickness of the drawer and to make the lock-mounted body smaller.
According to the sixth aspect of the present invention, the fixed seat is formed in a substantially U-shaped cross section, a protective cover is attached to the opening side thereof, the structure of the fixed seat is simplified and the manufacturing is facilitated, and the push is made. After unlocking the cylinder lock, the lock mounting body is removed and a protective cover is attached to the fixed seat left on the side wall of the furniture to facilitate the configuration and manufacture of the protective cover.

According to the invention of claim 7, after unlocking the push cylinder lock, the lock mounting body is removed from the fixed seat, a protective cover is attached to the fixed seat left on the side wall of the furniture, and the fixed receiver left on the side wall of the furniture. It avoids the exposure of the opening side of the seat, prevents the situation where the fingers are rubbed against the opening side and injured, and secures the safety at the time of unlocking.
According to the eighth aspect of the present invention, a paper pattern having an engageable contact piece on the front surface of the drawer and an engageable main body piece on the side wall of the furniture is provided, and the fixed receiving seat is attached to the main body piece on the side wall of the furniture. Specify the position, apply the pattern to the front of the drawer and the side wall of the furniture, make it possible to drill screw holes etc. in the side wall of the furniture based on the mounting position of the fixed seat, and fix it at the predetermined position on the side wall of the furniture. The seat is installed accurately.

According to the first aspect of the present invention, the lock mounting body includes a push cylinder lock having a cylinder that can appear and disappear in a direction orthogonal to the abutting portion, the fixed pedestal includes facing bending pieces, and one bending piece is used as a side wall of furniture. Since it is attached to the other bent piece and an engaging hole that can be engaged with and detached from the cylinder is formed, it is possible to easily realize, for example, a drawer without a frame of furniture and a lock / unlock operation of a door with a simple structure, and the lock / unlock operation can be performed. In addition to being easy to do, the push cylinder lock is located on the side wall of the furniture, and the cylinder lock is located in front of the drawer or door as in the past, avoiding the situation of spoiling the appearance and realizing the improvement. ..
According to the second aspect of the present invention, a fixed seat accommodating space in which a fixed seat can be inserted and removed from the side is provided inside the lock mounting body, a cylinder sliding hole is opened in the accommodating space, and a cylinder is inserted in the sliding hole. Since the lock can be moved in and out, the lock mounting body can be easily inserted and removed from the fixed seat, and the cylinder can be moved in and out and the push cylinder lock can be locked and unlocked easily.

According to the third aspect of the present invention, since the locking piece capable of engaging with the other bent piece is provided in the fixed seat accommodation space, the operation of the other bent piece is restricted and the cylinder and the engaging hole are stably engaged with each other. Demoval operation can be realized.
According to the fourth aspect of the present invention, since the cushioning sheet is attached to the abutting portion, it is possible to prevent scratching due to direct contact between the abutting portion and the front portion of the drawer when the push cylinder lock is locked.
According to the fifth aspect of the present invention, since the drawer is suitable for a frameless type, it is possible to cope with a certain door thickness of the drawer and to reduce the size of the lock-mounted body.
In the invention of claim 6, since the fixed seat is formed in a substantially U-shaped cross section and a protective cover is attached to the opening side thereof, the structure of the fixed seat can be simplified and the manufacturing can be facilitated. After unlocking the push cylinder lock, the lock mounting body can be removed to attach the protective cover to the fixed seat left on the side wall of the furniture, and the configuration and manufacture of the protective cover can be facilitated.

In the invention of claim 7, after the push cylinder lock is unlocked, the lock mounting body is removed from the fixed seat, and the protective cover is attached to the fixed seat left on the side wall of the furniture, so that the lock is left on the side wall of the furniture. It is possible to avoid the exposure of the opening side of the seat, prevent the situation where the fingers are rubbed against the opening side and injure the person, and ensure the safety at the time of unlocking.
According to the eighth aspect of the present invention, a paper pattern having an engageable contact piece on the front surface of the drawer and an engageable main body piece on the side wall of the furniture is provided, and the fixed receiving seat is attached to the main body piece on the side wall of the furniture. Since the position was specified, the paper pattern was applied to the front surface of the drawer and the side wall of the furniture, and a screw hole or the like could be drilled in the side wall of the furniture based on the mounting position of the fixed seat, the predetermined position of the side wall of the furniture was made possible. The fixed seat can be attached accurately to the furniture.

It is a perspective view which shows the situation which the lock attachment body to which this invention was applied is attached to the side wall of a furniture, and the drawer is locked. FIG. 3 is an enlarged cross-sectional view taken along the line AA of FIG. FIG. 3 is an enlarged cross-sectional view taken along the line BB of FIG. The front view of FIG. 1 is shown in a slightly enlarged size. The plan view of FIG. 1 is shown in a slightly enlarged size.

It is a perspective view which shows the situation which the lock attachment body to which this invention was applied is attached to the fixed pedestal attached to the side wall of furniture. It is an exploded perspective view which shows the situation where the fixed seat is attached to the lock-attached body to which this invention is applied, and is shown with reference to the lock-attached body. The plan view of the lock-mounted body to which the present invention is applied is shown in a slightly reduced size. The rear view of the lock-mounted body to which the present invention is applied is shown in a slightly reduced size.

It is a perspective view showing the situation where the fixed seat is attached to the lock wearing body to which the present invention is applied, and is shown slightly enlarged. It is an enlarged perspective view which shows the fixed seat to which this invention was applied. It is shown in a slightly enlarged view in the front view of FIG. It is sectional drawing which follows the CC line of FIG. The side view of FIG. 11 illustrates the adhered state of the protective cover.

(A) to (h) are explanatory views which show the attachment procedure of the lock wearing body and the fixed pedestal to which this invention was applied. (A) is a perspective view showing a situation in which a cushioning sheet is attached to the inner surface of the contact portion of the lock-mounted body before the use of the lock-mounted body. (B) is a perspective view showing a situation in which the mounting position of the fixed seat is positioned by using a paper pattern when mounting the fixed seat on the side wall of the furniture. (C) is a perspective view showing a situation in which a fixed seat is attached to a side wall of furniture based on the attachment position. (D) is a perspective view showing a situation in which a lock mounting body is mounted on a fixed seat after mounting. (E) is a perspective view showing a situation in which the push cylinder lock is locked after the lock mounting body is mounted on the fixed seat. (F) is a perspective view showing a situation in which the push cylinder lock is unlocked by operating a key, and then the lock mounting body is slid forward of the drawer to be removed from the fixed seat. (G) is a perspective view showing a situation in which the key is removed by operating the key again after removing the lock-mounted body. (H) is a perspective view showing a situation in which a protective cover is attached to a fixed seat left on a side wall of furniture after the lock mounting body is removed.

Hereinafter, a illustrated embodiment in which the present invention is applied to drawers without frames for furniture such as desks, office furniture, cabinets, chests of drawers, etc. will be described. In FIGS. 1 to 15, 1 is provided with a plurality of drawers 2 in multiple stages. In furniture, the periphery excluding the opening 3 on the front side thereof is divided into a rectangular shape by a side wall 4, and a drawer 2 without a frame can be drawn forward from the opening 3 in the divided space.
The drawer 2 is provided with a front plate 5 that also serves as a door at the front portion, does not have a substantially frame for partitioning the inside, and has a pair of left and right side plates 6 and a back plate (not shown) around the lower half portion thereof. A bottom plate 7 is attached to the lower end of the arrangement to form a bottomed storage space.

A lock mounting body 8 is attached to the side surface of the side wall 4 on the opening 3 side, and the bent short contact portion 8a is arranged so as to be engageable with the front plate 5 of the drawer 2 when the lock is locked.
The lock mounting body 8 is formed into a substantially L-shaped thick plate by zinc die casting, and a cylinder portion of a known push cylinder lock 9 is integrally projected at the end thereof as a lock.

The push cylinder lock 9 has a cylinder sliding hole 10 formed inside, and the cylinder 11 is slidably housed in the sliding hole 10. A long hole 12 is formed in the cylinder 11, and a set spring is housed in the long hole 12, and the cylinder 11 is urged to project forward in the axial direction by its elasticity.

The push cylinder lock 9 is pushed inward during a push operation on the front portion of the cylinder 11 to be locked, and is unlocked during an unlocking operation in which the key 15 is inserted into the key hole 14 at the front portion thereof and rotated. The cylinder 11 can be projected forward.
In the figure, reference numeral 16 denotes a guide pin inserted into the elongated hole 12, which makes it possible to regulate the movement of the cylinder 11.

As shown in FIG. 7, the inside of the lock mounting body 8 is divided into a fixed seat accommodating space 18 and a reinforcing space 19 via a partition wall 17, of which the fixed seat accommodating space 18 is formed into a vertically long rectangular shape on the side. Locking pieces 20 and 20 are formed at the upper and lower positions of the locking pieces 20 and 20 so as to be open to the side so that the fixed seat 21 described later can be hooked and stopped in the fixed seat space 20.
In the reinforcing space 19, rectangular recessed chambers 23 and 23 are vertically partitioned via a reinforcing wall 22 connected to a partition wall 17, and the weight of the lock mounting body 8 is reduced.

The fixed receiving seat 21 is formed by bending a thick steel plate into a substantially U shape, and of the opposing bent pieces 25 and 26, a counterbore surface is provided at the upper and lower ends of the bent pieces 25 arranged on the side surface of the side wall 4. The formed screw hole 27, in the embodiment, forms a seating hole on the head of the countersunk screw 28.
Further, through holes 29 and 29 are formed in the upper and lower ends of the bent piece 26 arranged on the fixed seat accommodation space 18 surface, and a cylinder engaging hole 30 is formed between them, and the inner end of the cylinder 11 is formed. The part can be haunted.

In the figure, 31 is formed into a horizontally long rectangular shape by a rubber cushioning sheet, which is adhered to the inner side surface of the contact portion 8a and attached to cushion the impact between the contact portion 8a and the front plate 5 when the drawer 2 is locked. It is possible.
Reference numeral 32 is a protective cover made of rubber having a substantially U-shaped cross section, which unlocks the push cylinder lock 9, removes the lock mounting body 8, and covers the opening side of the fixed receiving seat 21 left on the side wall 4 of the furniture 1. However, the fixed seat 21 exposed and the fingers are prevented from being scratched, and safety at the time of unlocking is ensured.

In addition, 33 is a paper pattern for mounting the fixed receiving seat 21, which is formed in substantially the same shape as the lock mounting body 8, and the contact piece 33b and the main body piece 33a are applied to the front plate 5 of the drawer 2 and the side surface of the furniture 1. Based on the positions of the screw holes 34 and 34 formed at the predetermined positions of the main body piece 33a, the fixed receiving seat 16 can be attached to the fixed position.

In order to manufacture the furniture locking device of the present invention configured as described above, it is necessary to manufacture the lock mounting body 8, the fixed receiving seat 21, and the pattern 33 for attaching the fixed receiving seat 21.
First, when the lock mounting body 8 is manufactured, the appearance is formed into a substantially L-shaped thick plate by zinc die casting, and the cylinder portion of the push cylinder lock 9 is integrally projected from the base end portion thereof. A cylinder sliding hole 10 is formed inside the cylinder portion.

Further, a partition wall 17 is formed in the inside of the lock mounting body 8 in the vertical direction, and a concave fixed seat accommodating space 18 and a reinforcing space 19 are formed on the left and right sides of the partition wall 17, and the fixed seat accommodating space 18 is sided. Open to the direction.
Locking pieces 20 and 20 are arranged to face each other above and below the fixed seat accommodation space 18, and a cylinder sliding hole 10 is opened on the inner surface between them.

In the reinforcing space 19, a reinforcing wall 22 is formed laterally in the center, rectangular concave chambers 23, 23 are formed vertically above and below the reinforcing wall 22, and the inner surface of the contact portion 8a is made to face the concave chambers 23, 23. Form.
That is, the tip portion of the lock mounting body 8 is bent at a right angle to form the contact portion 8a, and the rubber cushioning sheet 31 is attached to the flat inner side surface thereof with an adhesive before assembly.
As described above, the lock mounting body 8 is die-cast zinc-molded and can be manufactured uniformly and uniformly without requiring special machining. It is desirable to paint the surface of the lock mounting body 8 in an appropriate color to improve the appearance.

In this case, since the lock mounting body 8 is applied to the drawer 2 without a frame in the embodiment, the length of the lock mounting body 8 along the side wall 4 of the furniture 1 excluding the thickness of the contact portion 8a. Can be formed long and can correspond to various thicknesses of the front plate 5.

Next, the cylinder 11 is slidably accommodated in the cylinder sliding hole 10 in the cylinder portion of the push cylinder lock 9 projecting from the base end portion of the lock mounting body 8. An elongated hole 12 is formed inside the cylinder 11, a guide pin 16 is inserted into the elongated hole 12, the operation of the cylinder 11 is restricted, a set spring is accommodated in the elongated hole 12, and the cylinder 11 is moved forward. Make it possible to urge.

When the fixed receiving seat 21 is manufactured, for example, a thick steel plate is bent into a substantially U shape by press working, and among the opposing bent pieces 25 and 26, the upper and lower ends of the bent piece 25 arranged on the side surface of the side wall 4. A screw hole 27 is formed in the portion, and in the embodiment, a seating hole for the head of the countersunk screw is formed.

Further, through holes 29 and 29 are formed in the upper and lower ends of the bent piece 26 arranged on the inner surface of the fixed seat accommodating space 18, and a cylinder engaging hole 30 is formed between them. The surface of the fixed receiving seat 21 is appropriately plated after being manufactured.
As described above, each part of the fixed receiving seat 21 can be manufactured uniformly and uniformly by press working, and no other special processing is required.

Further, when the paper pattern 33 for attaching the fixed receiving seat 21 is manufactured, a foldable thin and plain paper pattern paper is prepared, and this paper is cut into a horizontally long rectangle having substantially the same shape as the lock mounting body 8.
Then, the abutting piece 33b is formed to be bendable at one end of the paper pattern, and the positions of the screw holes 34 and 34 can be written or engraved on the wide main body piece 33a.
As described above, the paper pattern 33 can be easily manufactured by using a simple material.

After the lock mounting body 8, the fixed receiving seat 21, and the paper pattern 33 are manufactured in this way, these are attached to the side wall 4 at the front portion on the opening side of the furniture 1. The mounting procedure is as shown in FIG.
First, before assembling these, the rubber cushioning sheet 31 is attached to the flat inner side surface inside the abutting portion 8a of the lock mounting body 8 with an adhesive. This situation is as shown in FIG. 15 (a).

Next, the fixed receiving seat 21 is attached to the side wall 4 at the front side of the opening side of the furniture 1.
At that time, the mounting position of the fixed receiving seat 21 is positioned using the manufactured paper pattern 33.
In the positioning, the contact piece 33b is applied to the corner portion of the front plate 5, the main body piece 33a is applied to the side wall 4 of the furniture 1, the corresponding positions of the through holes 27 and 27 are marked, and the portion is marked with the screw hole 34. The drilling position of. This situation is as shown in FIG. 15 (b).

In this way, the side wall 4 of the furniture 1 is drilled based on the positions of the screw holes 34, 34, the through holes 27, 27 of the fixed receiving seat 21 are positioned in the side wall 4, and the countersunk screws 28, 28 are formed through the through holes 29, 29. It is inserted into the through holes 27 and 27 and screwed into the perforated portion of the side wall 4 to fix the fixed receiving seat 21. This situation is as shown in FIG. 15 (c), and the opening side of the fixed seat 21 is positioned forward.

Then, after pushing and moving the front plate 5 to close the drawer 2, the lock mounting body 8 is held and mounted on the fixed receiving seat 21.
At that time, the push cylinder lock 9 is placed in an unlocked state, the cylinder 11 is projected forward, and the fixed seat storage space 18 is opened and placed.

Under this circumstance, the opening side of the fixed seat accommodation space 18 of the lock mounting body 8 is moved toward the fixed seat 21, and the contact portion 8a of the lock mounting body 8 is engaged with the front surface of the drawer 2. The fixed seat accommodation space 18 is engaged with or fitted to the fixed seat 21. This situation is as shown in FIG. 15 (d).

In this way, the bent piece 25 of the fixed seat 21 engages with the inner portions of the locking pieces 20 and 20, and the bent piece 26 engages with and adheres to the inner surface of the fixed seat accommodating space 18. This situation is as shown in FIGS. 3 and 10.

After that, the front protruding portion of the cylinder 11 of the push cylinder lock 9 is pushed in to lock the push cylinder lock 9. This situation is as shown in FIG. 15 (e).
In this way, the rear end portion of the cylinder 11 protrudes from the cylinder engaging hole 30 of the fixed receiving seat 21 and engages with the fixed receiving seat 21. This situation is shown in Figures 2 and 3.

Therefore, the lock mounting body 8 mounted on the fixed receiving seat 21 is prevented from moving along the side wall 4, that is, pulling out in the lateral direction by the locked cylinder 11, and restrains the closed state and movement of the drawer 2. To form a locked state. This situation is as shown in FIG. 15 (e).

Next, when the drawer 2 is used, it is necessary to unlock the push cylinder lock 9.
In this unlocking operation, the key 15 is inserted into the key hole 14 of the push cylinder lock 9 and rotated. This situation is as shown in FIG. 15 (f).
In this way, the cylinder 11 moves forward through the cylinder sliding hole 10 due to the elasticity of the set spring as shown in the virtual lines of FIGS. The engagement with the joint hole 30 is released.

After that, the lock mounting body 8 is held and slid forward along the side wall 4 of the furniture 1, the bent piece 25 and the locking pieces 20 and 20 are disengaged, and the furniture 1 is pulled out from the fixed receiving seat 21. ..
In this way, after the lock mounting body 8 is removed from the fixed receiving seat 21, the restraint of the drawer 2 by the contact portion 8a is released, so that the front plate 5 can be grasped and the drawer 2 can be opened, and the drawer 2 can be pulled out. Can be used.

After removing the lock mounting body 8 from the fixed receiving seat 21, the key 15 is reinserted into the key hole 14 of the push cylinder lock 9 and rotated by 90 °, and the key 15 is removed from the key hole 14. This situation is as shown in FIG. 15 (g).
In this way, the key 15 is pulled out from the lock-mounted body 8, and the lock-mounted body 8 is conveniently handled.

On the other hand, after the lock mounting body 8 is removed from the fixed seat 21, the fixed seat 21 is left on the side wall 4 of the furniture 1, and there is a possibility that the fingers may come into contact with the opening side thereof to cause injury.
Therefore, a protective cover 32 is prepared and adhered to the opening side to prevent the opening side from being exposed, thereby ensuring the safety of the push cylinder lock 9 at the time of unlocking. This situation is as shown in FIG. 15 (h).

When the drawer 2 is locked after the drawer 2 is used, the drawer 2 is closed, the protective cover 32 is removed, and the open side of the fixed receiving seat 21 is exposed.
After that, the lock mounting body 8 is held in the unlocked state of the push cylinder lock 9, and the lock mounting body 8 is moved toward the fixed receiving seat 21 to mount the lock mounting body 8 on the fixed receiving seat 21. This situation is as shown in FIG. 15 (d) described above.

After that, the push cylinder lock 9 of the mounted lock mounting body 8 is locked to lock the operation of the locked mounting body 8 to form a safe closed state of the drawer 2. This situation is as shown in FIG. 15 (e) described above.

As described above, the lock device for furniture such as desks, office furniture, cabinets, and tanks of the present invention is the side wall 4 of the furniture 1 provided with the drawer 2, and the fixed receiving seat 21 is attached to the opening side of the drawer 2 and fixed. A lock mounting body 8 that can be detached and engaged is provided on the receiving seat 21, and a push cylinder lock 9 is integrally provided on the lock mounting body 8.

When not in use to close the drawer 2, the cylinder 11 of the push cylinder lock 9 is engaged with the cylinder engagement hole 30 of the fixed receiving seat 21 to restrain the operation of the lock mounting body 8 and hit the lock mounting body 8. The engagement between the contact portion 8a and the front plate 5 of the drawer 2 can be maintained to ensure safety when the drawer 2 is closed.

Moreover, the push cylinder lock 9 makes the locking / unlocking operation easier than that of the conventional device of this type, and the attachment / detachment and engagement mechanism between the lock mounting body 8 and the fixed receiving seat 21 has a simple structure and a large number of parts. Since there are few, it is cheap and easy to manufacture and assemble.

1 Furniture 2 Drawer 4 Side wall 21 Fixed receiving seat 8 Lock mounting body 8a Abutment part 9 Push cylinder lock

10 Cylinder sliding hole 11 Cylinder 15 key 18 Fixed seating space 20 Locking piece 25,26 Bending piece

30 Engagement hole 31 Cushioning sheet 32 Protective cover 33 Paper pattern 33a Main body piece 33b Contact piece 34 Screw hole

Claims (8)

It has a fixed seat that attaches to the side wall of furniture equipped with a drawer, and an engageable contact part at the front of the drawer. It can be attached to and detached from the fixed seat and can be unlocked by key operation. In a furniture locking device with a lock mount provided with a cylinder lock, the lock mount comprises a push cylinder lock having a cylinder that can appear and disappear in a direction orthogonal to the abutting portion, and the fixed seats face each other. A furniture locking device comprising a bent piece, one bent piece attached to a side wall of the furniture, and the other bent piece having an engaging hole that can be engaged with and detached from the cylinder. A claim that a fixed seat accommodating space in which a fixed seat can be inserted and removed from the side is provided inside the lock mounting body, a cylinder sliding hole is opened in the accommodating space, and the cylinder can appear and disappear in the sliding hole. 1 The furniture locking device according to the above. The furniture locking device according to claim 1, wherein the fixed seat accommodation space is provided with a locking piece that can be engaged with the other bent piece. The furniture locking device according to claim 1, wherein a cushioning sheet is attached to the contact portion. The furniture locking device according to claim 1, wherein the drawer is a frameless type. The furniture locking device according to claim 1, wherein the fixed seat is formed in a substantially U-shaped cross section, and a protective cover is attached to the opening side thereof. The furniture locking device according to claim 6, wherein after unlocking the push cylinder lock, the lock mounting body is removed from the fixed seat, and a protective cover is attached to the fixed seat left on the side wall of the furniture. A paper pattern having an engageable contact piece on the front surface of the drawer and an engageable main body piece on the side wall of the furniture is provided, and the mounting position of the fixed seat with respect to the side wall of the furniture is clearly indicated on the main body piece. The furniture locking device according to claim 1, wherein a paper pattern is applied to the front surface of the drawer and the side wall of the furniture, and a screw hole or the like can be drilled in the side wall of the furniture based on the mounting position of the fixed seat.

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