JP2589195Y2 - Locking mechanism for furniture etc. - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock mechanism for locking or unlocking a drawer or an opening / closing door for several steps such as furniture using a cylinder lock and a vertically long key plate. The present invention relates to an improvement of an interlocking mechanism between a key and a key board.

[0002]

2. Description of the Related Art Conventionally, in a cabinet or the like, a key plate is raised or lowered by rotation of a key inserted into a cylinder lock, thereby locking or unlocking a drawer or an opening / closing door in several stages at a time to a closed position. Locking mechanisms adapted to lock are widely used. In this type of locking mechanism, usually, a cylinder lock is mounted on an upper or lower part of a front surface of a cabinet main body, and a key plate is vertically guided and supported inside the cabinet main body along a side of the drawer. The cylinder lock and the key plate are connected to each other by an interlocking mechanism for converting rotation of the cylinder lock by the key into vertical movement of the key plate.

[0003]

The interlocking mechanism between the cylinder lock and the key plate in the conventional locking mechanism needs to convert the rotation of the cylinder lock into a vertical movement of the key plate. The supporting member and the mechanical parts are required for assembling the supporting member and the mechanical parts. In particular, when the cylinder lock is located inside the left and right ends of the front upper part of the cabinet body, the interlocking mechanism between the cylinder lock and the key plate is further complicated, and the assembling workability is reduced and the manufacturing cost is increased. Is the cause.

Accordingly, an object of the present invention is to provide a locking mechanism for furniture or the like which has a simple structure and is excellent in assembling workability.

[0005]

Means for Solving the Problems To solve the above-mentioned problems, the invention according to the first aspect of the present invention collectively comprises several vertically movable drawers or openable / closable doors which are vertically installed on the inner side surface of the storage container main body so as to be vertically movable. A key plate that locks or unlocks the closed position, a cylinder lock provided on the upper or lower part of the front surface of the storage container body, and an interlocking mechanism that converts the rotation of the rotating portion of the cylinder lock by the key into vertical movement of the key plate. A locking mechanism for furniture or the like comprising an engaging pin protruding eccentrically from the rear end of the rotating part of the cylinder lock, one end engaging with the engaging pin, and the other end being a key plate. , And a lever substantially supported at a substantially intermediate portion by a support member fixed to the storage container body.

According to a second aspect of the present invention, in the locking mechanism of the first aspect, a concave groove having an inclined surface slidably engaged with the support member is formed on a lower surface of the substantially middle portion of the lever plate. When the engaging pin engaged with one end of the lever plate rotates eccentrically, the inclined surface of the concave groove of the lever plate slides with respect to the support member, thereby engaging with the other end of the lever plate. The key plate is configured to move up and down.

According to a third aspect of the present invention, in the locking mechanism of the first aspect, the support member has a slit hole, and the lever plate penetrates the slit hole at a substantially intermediate portion.

According to a fourth aspect of the present invention, in the locking mechanism of the first aspect, a concave groove is formed on the lower surface of the substantially middle portion of the lever plate so as to be able to swing only with the support member, and the lever plate is provided. Is formed at one end thereof with a long hole-shaped engagement hole with which an engagement pin is engaged.

[0009]

In the locking mechanism according to the first aspect, when the rotary part is rotated by a key inserted into the rotary part of the cylinder lock, the engaging pin projecting eccentrically at the rear end of the rotary part is rotated. The lever is engaged with the engagement pin at one end, and the lever is displaced up and down with a substantially intermediate portion supported by the slit hole of the support member as a fulcrum, and the other end of the lever is The keyboard engaged with is moved up and down. Since the engagement pin for moving the lever rod up and down is eccentrically protruded from the rear end of the rotating portion of the cylinder lock, there is no need to provide a support member for supporting the engagement pin in the storage container main body. The support structure for the mating pin becomes extremely simple. In addition, since the lever plate has a configuration in which a substantially intermediate portion thereof is supported by a support member fixed to the storage container body, the support structure of the lever plate is also extremely simple, and the workability of assembling the lever plate is good. become.

In the locking mechanism according to the second aspect, the key plate is engaged with the other end of the lever plate by sliding the inclined surface of the concave groove formed at a substantially intermediate portion of the lever plate with respect to the support member. The vertical movement of the lever allows the overall vertical movement of the lever plate to be kept small while securing the vertical movement required to lock and unlock the key plate. Can be incorporated into In addition, by appropriately setting the inclination angle of the inclined surface of the groove, the vertical movement amount of the key plate can be easily adjusted regardless of the dimensional ratio from the support member to both ends of the lever plate. The degree of freedom increases, and a design that emphasizes aesthetics becomes possible.

In the locking mechanism according to the third aspect, the support member has a slit hole, and the lever plate passes through the slit hole at a substantially intermediate portion, so that the lever plate can be easily assembled. The lever plate can be stably held.

In the locking mechanism according to the fourth aspect, the lever plate only swings up and down with the engaging portion between the support member and the concave groove as a fulcrum, so that the lever plate and the support member and the lever plate and the key The sliding noise between the plates is reduced, and a locking mechanism with less noise can be provided.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 schematically shows an embodiment in which the present invention is applied to a file cabinet, and FIG. 2 is an explanatory view showing the operation of the cabinet locking mechanism shown in FIG. Referring to these figures, a drawer 2 of several upper and lower stages is housed in a cabinet body 1 having an open front surface.

On the inner surface of the cabinet body 1, a key plate 3 for locking or unlocking several stages of the drawers 2 in a collective manner in a closed position is vertically provided to be vertically movable. An engaging hole 4 that is open upward is formed on a side portion of each drawer 2, and a stopper member 5 that can be engaged with the engaging hole 4 of each drawer 2 is fixed to the key plate 3, Each stopper member 5 is disengaged from the engaging hole 4 of each drawer 2 by the vertical movement of the key plate 3, whereby each drawer 2 can be collectively locked and unlocked to the closed position, that is, the storage position. ing.
Note that the key plate 3 may include a stopper member that can abut on a front end of a protrusion protruding from a side portion of the drawer 2.

A cylinder lock 6 having a rotating part 7 is incorporated in the upper part of the front surface of the cabinet body 1. The cylinder lock 6 and the key plate 3 rotate the rotating part 7 of the cylinder lock 6 with a key 8. The key plate 3 is connected via an interlocking mechanism 9 for converting the movement into a vertical movement.

The interlocking mechanism 9 includes an engaging pin 10 eccentrically projecting from the rear end of the rotating portion 7 of the cylinder lock 6, and a slit hole 12 of a support member 11 having a substantially intermediate portion fixed to the cabinet body 1. And a lever plate 13 supported by the lever. An engagement hole 14 that engages with the engagement pin 10 is formed at one end of the lever plate 13, and a protrusion 16 that engages with an engagement hole 15 formed on the key plate 3 is formed at the other end of the lever plate 13. Is formed.

More specifically, in this embodiment,
As shown in FIG. 2, the engaging pin 10 is moved about one axis about the axis of the rotating portion 7 of the cylinder lock 6 between the rightmost position and the leftmost position.
It is provided so as to rotate and move by 80 degrees. A substantially trapezoidal concave groove 17 that engages with the slit hole 12 of the support member 11 is formed on the lower surface of the substantially middle portion of the lever plate 13, and is engaged with one end of the lever plate 13. When the pin 10 rotates eccentrically, the inclined surface 17 a of the concave groove 17 of the lever plate 13 slides against the lower end edge of the slit hole 12 of the support member 11, thereby engaging with the other end of the lever plate 13. The key board 3 is configured to move up and down. The concave groove 17 has only to have an inclined surface that slides with respect to the support member 11, and may have, for example, a substantially V-shaped groove shape.

In the locking mechanism having the above structure, when the rotary unit 7 is rotated by the key 8 inserted into the rotary unit 7 of the cylinder lock 6, the engaging pin eccentrically protruded from the rear end of the rotary unit 7. 10 rotates around the rotation axis of the rotating portion 7, so that the lever 13 whose one end is engaged with the engagement pin 10 is supported at a substantially intermediate portion where the lever 13 is supported by the slit hole 12 of the support member 11. The key plate 3 engaged with the other end of the lever 13 is moved up and down. Therefore, the drawer 2 can be locked and unlocked by the key plate 3 described above.

According to the present invention, since the engaging pin 10 for swinging the lever 13 is eccentrically protruded from the rear end of the rotating portion 7 of the cylinder lock 6, the engaging pin 10 is provided on the cabinet body 1. There is no need to provide a support member for supporting the. Therefore, the support structure of the engagement pin 10 becomes extremely simple. Further, since the lever plate 13 has a configuration in which the slit hole 12 of the support member 11 fixed to the cabinet main body 1 supports a substantially intermediate portion thereof, the support structure of the lever plate 13 is extremely simple, and the lever plate 13 is very simple. Thirteenth assembly workability is improved.

Further, in the locking mechanism having the above structure,
As can be easily understood from FIG. 2, the other end of the lever plate 13 is formed by sliding the inclined surface 17 a of the concave groove 17 formed at a substantially intermediate portion of the lever plate 13 with respect to the lower end edge of the slit hole 12 of the support member 11. Since the key plate 3 engaged with the key plate 3 is configured to move up and down, it is possible to suppress the overall vertical movement amount of the lever plate 13 while securing the vertical movement amount necessary for locking and unlocking the key plate 3. As a result, the lever plate 13 can be compactly incorporated in the cabinet body 1. Further, by appropriately setting the inclination angle of the inclined surface 17 a of the concave groove 17, the lever plate 13 can be moved from the support member 11.
The amount of vertical movement of the key plate 3 can be easily adjusted irrespective of the dimensional ratio up to both ends of the cylinder lock 6, so that the degree of freedom of the mounting position of the cylinder lock 6 is increased, and a design with an emphasis on aesthetics becomes possible. For example,
In the illustrated embodiment, the cylinder lock 6 is arranged near the right end of the upper front part of the cabinet main body 1. By appropriately setting the inclination angle of the inclined surface 17a of the groove 17 and the groove 17, the vertical movement amount of the key board 3 can be easily set to a required amount.

Further, since the lever plate 13 penetrates through the slit hole 12 formed in the support member 11, it is easy to assemble, and can stably hold the lever plate 13 while maintaining its posture.

FIG. 3 shows another embodiment of the present invention. In the figure, the same components as those of the above embodiment are denoted by the same reference numerals. In this embodiment, the lever plate 1
3 has a substantially V-shaped concave groove 17 at a substantially intermediate portion, and the concave groove 17 is swingably engaged with a lower end edge of a slit hole of the support member 11. Therefore, the lever plate 13 of this embodiment can only swing with respect to the support member 11 about the concave groove 17 as a fulcrum. In order to swing the lever plate 13 up and down, the engaging pin 10 engages with a long hole-shaped engaging hole 14 formed at one end of the lever plate 13 to shift the uppermost position and the lowermost position. It can rotate about 180 degrees between them. Also in this embodiment, the engagement pin 1 for swinging the lever 13 up and down is used.
Since 0 is eccentrically protruded from the rear end of the rotating portion of the cylinder lock 6, there is no need to provide a support member for supporting the engaging pin 10 in the cabinet main body 1. Therefore, the support structure for the engaging pin 10 is provided. Becomes extremely simple. The lever plate 13 is a support member 1 fixed to the cabinet body 1.
1, the support structure of the lever plate 13 is extremely simple, and the lever plate 1 has a very simple structure.
3. The assembling workability is improved. Further, in this embodiment, since the lever plate 13 only swings up and down with the engaging portion between the support member 11 and the concave groove 17 as a fulcrum, the lever plate 1
The sliding noise between the lever 3 and the support member 11 and between the lever plate 13 and the key plate 3 is reduced, and a locking mechanism with less noise is provided.

Although the illustrated embodiment has been described above, the present invention is not limited only to the above embodiment.
For example, the key plate may be configured to lock or unlock the doors in front of each drawer collectively in the closed position, and the present invention may be applied to a locking mechanism of any furniture other than the cabinet. It is possible.

[0025]

As is clear from the above description, according to the present invention, the engagement pin for moving the lever rod up and down is eccentrically protruded from the rear end of the rotating portion of the cylinder lock. Since the support structure of the pin becomes extremely simple, and the lever plate has a structure in which a substantially intermediate portion thereof is supported by the support member fixed to the storage container main body, the support structure of the lever plate is also extremely simple. It will be. Therefore, it is possible to provide a locking mechanism for furniture or the like that has a simple structure and is excellent in assembling workability.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a locking mechanism of a file cabinet according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing the operation of the locking mechanism shown in FIG.

FIG. 3 is an explanatory view showing an operation of a locking mechanism according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cabinet main body 2 Drawer 3 Key plate 6 Cylinder lock 7 Rotating part 9 Interlocking mechanism 10 Engagement pin 11 Support member 12 Slit hole 13 Lever plate 14 Engagement hole 16 Projection part 17 Concave groove 17a Slope

Claims (4)

(57) [Scope of request for utility model registration] 1. A key plate vertically mounted on an inner side surface of a storage container main body so as to be able to ascend and descend to lock or unlock a plurality of upper and lower drawers or opening / closing doors at a time in a closed position, and an upper part on the front surface of the storage container main body Or, a cylinder lock provided at a lower portion, and an interlocking mechanism for converting rotation of the rotating portion of the cylinder lock by a key into vertical movement of the key board, the interlocking mechanism eccentrically protruding from the rear end of the rotating portion of the cylinder lock. An engaging pin provided, one end of which is engaged with the engaging pin, the other end of which is engaged with the key plate, and a substantially intermediate portion having a lever plate supported by a support member fixed to the storage container body. A locking mechanism for furniture and the like characterized by the following. 2. A concave groove having an inclined surface slidably engaged with the support member is formed on a lower surface of a substantially intermediate portion of the lever plate, and is engaged with one end of the lever plate. The key plate engaged with the other end of the lever plate is configured to move up and down by sliding the inclined surface of the concave groove of the lever plate against the support member when the pin is eccentrically rotated. The locking mechanism according to claim 1, wherein: 3. The locking mechanism according to claim 1, wherein the support member has a slit hole, and the lever plate penetrates the slit hole at a substantially intermediate portion. 4. A concave groove is formed on the lower surface of the substantially middle portion of the lever plate so as to be able to swing only with respect to the support member, and one end of the lever plate has an elongated hole shape with which an engaging pin is engaged. The locking mechanism according to claim 1, wherein an engagement hole is formed.