JP4747808B2 - Locking device for drawers in storage furniture - Google Patents

Description

  The present invention relates to a drawer lock device for storage furniture such as a wagon or a sleeve cabinet, and more particularly to a lock device capable of simultaneously locking or unlocking a plurality of drawers stored in a storage furniture body. It is.

  As a drawer lock device in storage furniture such as a conventional wagon or sleeve cabinet, an operating member supported by the side wall of the storage furniture main body so as to be movable up and down, and an elastic member for biasing the operating member in the unlocking direction, A plurality of upper and lower drawers provided with stoppers to be engaged with the engaging parts provided in the operating member, and a lock provided on the front plate of the specific drawer that protrudes to the side with the locking or unlocking operation. A lock having an operation member, and a linkage provided on the side handle to transmit an operation force by the lock operation member to the operation member and interlock the lock operation member and the operation member. There is one that simultaneously locks or unlocks the plurality of drawers by engaging and disengaging the locking portion and the stopper by a locking or unlocking operation (see, for example, Patent Document 1 or 2). In addition, there is an apparatus that operates the operation member by moving the lock operation member up and down without the linkage tool (see, for example, Patent Document 3).

Utility Model Registration No. 2559508 (Figure 2-6) Utility Model Registration No. 2595136 (FIGS. 2-5 and 7) Japanese Patent No. 3341538 (FIGS. 1-3)

  The lock operation member in the drawer lock device in the conventional storage furniture as described above is such that the lock is located between the front plate and the back cover of the specific drawer, and the lock operation member is operated by key operation of the lock. Since it is necessary to operate the operating member provided on the side rod by protruding and retracting to the side, a long piece extending in the left-right direction extending substantially in parallel with the front plate due to space constraints and ease of manufacture. A plate-like body is provided, and the thickness direction of the plate-like body is the opening / closing direction (front-rear direction) of the drawer.

  Therefore, if the lock is erroneously operated with the specific drawer opened, and the lock operation member tries to close the drawer with the lock operation member protruding sideways, the lock operation member is There is a problem that the locking operation member may not be continued and the reliability of the locking device may be impaired.

  The present invention has been made to solve the above-described problems, and is difficult to be deformed even when the lock operation member collides with a side wall of the storage furniture body. The stable operation of the lock operation member continues. Therefore, an object of the present invention is to obtain a drawer lock device in storage furniture that can maintain the reliability of the lock device over a long period of time.

Locking device of the drawer in the storage furniture according to the present invention, for the problem solution, an actuating member supported on the side rail of the storage furniture body, and an elastic member for urging the actuating member in the unlocking direction, the A plurality of upper and lower drawers provided with stoppers that are locked to the locking parts provided on the operating member, and a locking operation that is provided on the front plate of a specific drawer and that protrudes to the side with the locking or unlocking operation A lock device for a drawer in a storage furniture in which an operation force of the lock operation member is transmitted to the actuating member , wherein the lock has an eccentric pin protruding rearward from the back surface of the lock by a key. A first plate-like body that is substantially vertical and has an elongated hole that engages with the eccentric pin, the thickness direction of which is substantially the front-rear direction; End of the rod-like body A substantially vertical second plate-like body vertically extending from the end of the second plate-like body, and extending in the lateral direction from the end of the second plate-like body. There Ru der are integrally molded and a third plate-shaped body of substantially horizontal which is substantially vertical direction.

  Further, the lock is provided between the front plate and the back cover on the rear side, and a resin guide member in which a through hole in the left-right direction is formed is attached to a side opening of the back cover, and the guide It is preferable that the free end side portion of the lock operating member is guided by an inner surface of the through hole of the member or a guide piece provided on the inner surface.

According to the drawer lock device for the storage furniture according to the present invention, the operation member supported by the side wall of the storage furniture body so as to be movable up and down, the elastic member for urging the operation member in the unlocking direction, and the operation A plurality of upper and lower drawers provided with stoppers that are locked to locking parts provided on the members, and a lock operation member that is provided on the front plate of a specific drawer and that protrudes to the side along with the locking or unlocking operation A lock device for drawers in storage furniture in which the operating force of the lock operating member is transmitted to the actuating member , wherein the lock operates an eccentric pin protruding rearward from the back of the lock with a key. A first plate-like body having a substantially vertical shape in which an elongated hole that engages with the eccentric pin is formed, and a thickness direction of the lock operation member is a substantially front-rear direction; The end of the side of the body A vertically extending second plate-like body, the thickness direction of which is approximately the front-rear direction, and extending from the end of the second plate-like body in the lateral direction, the thickness direction of which der those that have been integrally molded with the third plate-shaped body of substantially horizontal which is substantially vertical Runode, the lock operating member, as in the conventional lock operation member, the thickness direction is the front-rear direction Compared with the vertical plate-like one, the shape in the front-rear direction is large, so that the section modulus is large with respect to the external force in the front-rear direction. Therefore, the lock is erroneously operated in a state where the specific drawer is opened, and the drawer is closed while the free end side portion extending in the lateral side direction of the lock operation member protrudes laterally from the drawer. As such, even if the free end side portion of the lock operation member collides with the side wall of the storage furniture body, the free end side portion of the lock operation member is not easily deformed, and the stable operation of the lock operation member continues. The reliability of the lock device can be maintained over a long period of time, and a lock device having such an effect can be obtained with a simpler configuration.

  Further, the lock is provided between the front plate and the back cover on the rear side, and a resin guide member in which a through hole in the left-right direction is formed is attached to a side opening of the back cover, and the guide When the free end side portion of the lock operation member is guided by the guide piece provided on the inner surface or the inner surface of the through hole of the member, the free end side portion of the lock operation member is more difficult to deform due to the guide effect. The reliability of the locking device can be maintained for a longer period.

  Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments shown in the accompanying drawings, and all the embodiments that satisfy the requirements described in the claims are described. Is included. In the present specification, the direction in which the drawer is pulled out (the side in which the drawer is opened) is the front, the opposite side (the direction in which the drawer is closed) is the rear, and the left and right are the left and right.

  FIG. 1 is a vertical left side view showing a wagon provided with a drawer with two upper and lower stages using a drawer lock device in a storage furniture according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the drawer. 4 and 4 are explanatory views showing the structure of the lock and the lock operation member. FIG. 3 is an exploded perspective view seen from the rear side, and FIG. 4 is a perspective view seen from the front side. 5 and 6 are perspective views seen from the front side showing the relationship between the lock and the lock operating member, the linkage tool, and the actuating member, and FIG. 6 also shows a method of attaching the linkage tool to the side rod. Further, FIG. 7 is an enlarged left side view showing a state in which the linking tool and the operating member are assembled in the side rod, FIG. 8 is an exploded perspective view of the linking tool, and FIG. 9 is an outline view of the upper and lower end cams. 9 (a) is a front view (viewed from the left), FIG. 9 (b) is a side view, and FIG. 9 (c) is a bottom view. FIG. 10 is a diagram for explaining the operation of the linkage tool. FIG. 10 (a) shows the unlocked state, and FIG. 10 (b) shows the locked state.

  As shown in FIG. 1, a wagon 101 is pulled out by a wagon body 102, guide means 103, 103 comprising a combination of a rail attached to the left and right inner surfaces of the wagon body 102, and rollers and sliders engaged with the rail. The upper drawer 104, the lower drawer 105, and the like that are supported by the rails 3a and 3a and can be opened and closed forward and backward are configured. Further, the wagon body 102 includes a steel side plate having a substantially U-shape in plan view formed by opening the front side made up of the rear side plate 106 and the left and right side plates 107, 107, and an upper steel plate attached to the front and rear of the side plate. 108a and a mounting plate 108b, a steel lower plate 109a and a bottom plate 109b attached to the lower side of the side plate, a steel or wooden top plate 110 attached to the upper surface of the upper plate 108a and the mounting plate 108b, and a lower plate It is comprised by the caster 111, ... attached to the lower surface of the collar 109a and the bottom plate 109b. The casters 111,... Facilitate the movement of the wagon 101.

  As shown in FIGS. 1 and 2, the upper drawer 104 and the lower drawer 105 have a substantially U-shaped front view in which a steel back cover 2 is attached to the rear surface of the steel front plate 1 and opened upward on the rear side. The steel body plate 3 is attached, and the steel rear plate 4 is attached to the rear side of the body plate 3 to form an article accommodating portion. Further, the pulling device 11 is a superposition of a pulling body 12 made of a synthetic resin that can be rotated around a left-right axis on the upper side of the front plate 1 of the drawers 104 and 105, and a polymerization that closes a gap due to the rotation of the pulling body 12. And a synthetic resin cover body 13 provided with a portion. Note that the engagement hole 30 shown in FIG. 2 is formed only in the upper drawer 104.

  When the drawers 104 and 105 are closed and accommodated in the wagon body 102, the front plates 1 and 1 of the drawers 104 and 105 are hidden by the top plate 110 and the left and right side plates 107 and 107 in a plan view and a side view. Since the structure is not visible in a plan view and a side view, it is possible to give a clean appearance and protect the handle body 12 and the cover body 13 made of synthetic resin as described above. .

  The drawers 104 and 105 are supported by the guide means 103 and 103 as described above and can be opened and closed in the front-rear direction. When the drawers 104 and 105 are closed, the latch device 31 is in an operating state. Opening unexpectedly is prevented. When the pulling body 12 is pulled, the latch device 31 is released in conjunction with the operation.

  A cover body support portion 21 that is continuously bent upward, rearward, and downward is formed on the upper portion of the front plate 1, and engagement holes 29a,... Are formed on the lower portion of the front plate 1, to the rear. An extending back plate support plate 29 is provided horizontally. A body plate 3 is welded to the back cover 2, and an engagement piece 41 including a back plate 41a and a top plate 41b is formed on the top of the back cover 2 by being continuously bent upward and forward. An engaging projection (not shown) projects downward from the lower portion of the cover 2.

  Therefore, after the lock 52 (see FIGS. 3 to 6), which will be described later, is attached to the back cover 2 in the upper drawer 104, the engagement piece 41 on the top of the back cover 2 is placed under the cover body support portion 21 of the front plate 1. With the rear plate 41a and the upper surface plate 41b engaged with the lower side of the cover body support portion 21 with the rear plate 41a and the upper plate 41b engaged with the lower side of the front cover 1, By engaging the engagement holes 29a formed in the plate 29, a cylinder 58 (see FIGS. 4 to 6), which will be described later, is engaged with the engagement hole 30, and the back cover 2 is easily moved forward. It can be attached to the plate 1.

  As shown in FIG. 2, protrusions 45, 45 projecting outward are provided on the left and right outer surfaces of the body plate 3 of the drawer 104 (105), and the protrusions 45, 45 have engagement holes 45a in the front-rear direction. 45a are formed. Engagement holes 43a, 43a are formed in the left and right rear plates 43, 43 of the back cover 2 of the drawer 104 (105), and the locking holes 44a are formed in the left and right side plates 44, 44 of the back cover 2. 44a are formed.

  Accordingly, the engaging pieces 142a and 142a of the anti-vibration bodies 141 and 141 that perform the anti-vibration when closing the drawer 104 (105) are inserted from the rear side of the engaging holes 45a and 45a of the body plate 3, and the back The locking pieces 143a and 143a of the anti-vibration bodies 141 and 141 are inserted from the rear side of the engaging holes 43a and 43a of the cover 2, and the locking pieces 143a are inserted into the locking holes 44a and 44a of the back cover 2. , 143a is fastened to the body plate 3 and the back cover 2 in a state where the left and right anti-vibration bodies 141 and 141 are in contact with the left and right outer surfaces of the body plate 3. Mounted.

  Further, as shown in FIG. 2, on the right side surface of the body plate 3 of the drawer 104 (105), a locking portion 59 (see FIG. 3 to FIG. 6) of the operating member 55 that is interlocked with the key operation of the lock 52 (see FIGS. 3 to 6). Since the stopper 46 which latches in FIG.1 and FIG.5-FIG.7) is provided, the several drawers 104 and 105 can be simultaneously locked or unlocked so that it may mention later.

  Next, with reference to FIG. 3 and FIG. 4, the structure and the mounting structure of the lock 52 and the lock operation member 53 constituting the lock device 51 will be described. As shown in FIG. 3, in the upper drawer 104, the mounting plate 57 is positioned by engaging its engaging projections 57a and 57b with the engaging holes 48a and 48b from the front side of the back plate 2, for example, spot welding. And firmly fixed to the back cover 2.

  The lock operation member 53 is made of a steel plate, and is suspended from the right end portion of the first plate 61 having a substantially vertical first plate 61 whose thickness direction is substantially the front-rear direction. A substantially vertical second plate-like body 62 whose thickness direction is substantially the front-and-rear direction, and extending from the upper end of the second plate-like body 62 to the right, the thickness direction being substantially the vertical direction. A substantially horizontal third plate-like body 63 is integrally formed.

  The vertical hole 61 a on the front side of the first plate 61 of the lock operation member 53 is engaged with an eccentric pin 52 a protruding from the rear surface of the lock 52, and the first plate 61 is moved to the left and right of the lock 52. Are engaged with the notches 52c and 52c. In this state, the lock operation member 53 is slid in the left-right direction by fitting the mounting shafts 52b of the lock 52 into the through holes 56a of the seat plate 56 and caulking the tips of the mounting shafts 52,. It is supported by the key 52 of the lock 52 and is driven by an eccentric pin 52a that rotates around the central axis of the cylinder 58 (see FIG. 4) to reciprocate in the left-right direction.

  In this way, the lock 52 having the lock operation member 53 attached thereto as a unit with a simple configuration having a small number of parts is substantially horizontal to the side opening 47 of the back cover 2 as shown in FIG. In the state where the third plate-like body 63 is inserted, the engaging piece 56b of the seat plate 56 is engaged with the engaging hole 57c of the mounting plate 57 fixed to the back cover 2 as described above, and the step portion 56c. , 56c are positioned at positions where they are abutted against the retaining portions 57d, 57d of the mounting plate 57. In this state, if the presser plate 57e of the mounting plate 57 is pressed downward with a tool and bent to a position where it engages with the recess 52d on the upper surface of the lock 52, the lock 52 can be easily and reliably attached to the back cover 2. it can.

  The lock 52 attached to the back cover 2 of the upper drawer 104 in this way is supported and fixed between the front plate 1 and the back cover 2 because the back cover 2 can be easily attached to the front plate 1 as described above. The cylinder 58 is engaged with the engagement hole 30 of the front plate 1 so that the key hole 58a is exposed to the front surface. The side opening 47 of the back cover 2 is the third free end side portion of the lock operation member 53. The plate-like body 63 protrudes.

  Since the third plate-like body 63 of the lock operation member 53 is a substantially horizontal plate shape whose thickness direction is substantially the vertical direction, the thickness direction thereof is the front-rear direction as in a conventional lock operation member. Compared with the vertical plate-shaped one, the shape in the front-rear direction is large, so the section modulus is large with respect to the external force in the front-rear direction, and thus the strength and rigidity against the external force in the front-rear direction are high.

  Therefore, the lock 52 is erroneously operated with the upper drawer 104 opened, and the third plate 63 of the lock operating member 53 is projected to the right side from the drawer to close the drawer. Even if the third plate-like body 63 collides with the scissors 131 (see FIGS. 5 and 6) of the storage furniture main body 102, the third plate-like body 63 is hardly deformed and the lock operation member 53 is stabilized. Since the operation continues, the reliability of the locking device 51 can be maintained over a long period of time.

  As shown in FIG. 3, a guide member 64 made of synthetic resin such as polyacetal, polypropylene, polyethylene terephthalate, nylon, or ABS is attached to the side opening 47 of the back cover 2 of the upper drawer 104. That is, when the upper and lower mounting portions 65, 65 of the guide member 64 are inserted from the outside of the side opening 47 and the upper and lower locking pieces 65a, 65a are locked, the guide member 64 is easily mounted on the back cover 2. The front surface of the guide member 64 contacts the rear surface of the front plate 1.

  Since the guide member 64 is formed with a through hole 66 in the left-right direction, the third plate 63 of the lock operation member 53 can be inserted, and the upper and lower guide ribs of the through hole 66 of the guide member 64 are inserted. 67 and 67 guide the upper and lower surfaces of the third plate-like body 63, and the guide wall 68 guides the front surface of the third plate-like body 63.

  Therefore, since the resin guide member 64 guides the third plate-like body 63 of the steel lock operation member 53, the lock operation member 53 is further hardly deformed, and the reliability of the lock device 51 is further increased. Can be maintained over a period of time. In addition, the guide member 64 also functions as a swing stopper when the lock operation member 53 is moved in the left-right direction. Further, the exposed portion of the third plate-like body 63 is reduced, which is more preferable from the viewpoint of safety. Is.

  Next, the relationship between the lock 52 and the lock operation member 53, the linkage tool 54, and the operation member 55 constituting the lock device 51 will be described with reference to FIGS. 5 to 7. As shown in FIG. 6, the linking tool 54 is inserted from a linking tool mounting hole 133 formed in the side rod 131 (right front reinforcing body), and the engagement pieces 71 e and 71 f are inserted into the notches 135 a and 135 b of the side ridge 131. By engaging and locking the locking pieces 71g and 71h in the locking holes 136a and 136b, they can be easily attached to the side rod 131. In this attached state, the driven portion 81 is exposed from the through hole 134 of the side rod 131. Further, the linkage 54 is an output piece that protrudes into the vertical guide groove 132 formed in the side rod 131 when the driven portion 81 is pushed by the tip of the third plate 63 of the lock operation member 53. 86 is a cam mechanism which will be described later.

  Further, as shown in FIG. 5, the operating member 55 is fitted in a vertical guide groove 132 formed in the side rod 131 (right front reinforcing body), and is supported by the side rod 131 so as to be vertically slidable. Locking portions 59, 59 projecting inwardly are provided on the inward surface (left surface), and the output piece 86 of the linkage 54 is engaged with the engagement hole 55a.

  With the above-described configuration of the lock device 51, as shown in FIG. 6, when a key (not shown) is inserted into the key hole 58a of the lock 52 and the key is rotated (for example, rotated clockwise by 180 °), the lock operation member 53 The third plate-like body 63 moves in a direction approaching the side rod 131 (see arrow A in FIG. 6). When the driven portion 81 of the rotation input body 72 of the linkage 54 is pushed by the tip 63a of the third plate-like body 63, the rotation input body 72 rotates backward (arrow B in FIG. 6). The output piece 86 is lowered (see arrow C in FIG. 6).

  The substantially horizontal third plate-like body 63 of the lock operation member 53 has a distal end portion 63a bent rearward, which is as close as possible to the center of rotation of the driven portion 81 of the rotation input body 72. By pushing the position, the rotation angle of the rotation input body 72 is increased as much as possible with respect to the movement amount of the lock operation member 53.

  When the output piece 86 is lowered as described above, the lower surface of the engagement hole 55a is pushed by the output piece 86, and the operation member 55 is also lowered (see arrow D in FIG. 6). When the actuating member 55 is lowered, the locking portions 59, 59 are lowered from the position of FIG. 7, so that the locking portions 59, 59 are provided on the stoppers 46, 46 provided on the drawers 104, 105 (see also FIG. 2). .)), The plurality of drawers 104 and 105 housed in the storage furniture main body 102 can be locked simultaneously. Further, when the key is reversed (for example, rotated 180 ° counterclockwise), the third plate 63 of the lock operation member 53 moves in a direction away from the side bar 131, so that the lock is released by an elastic member described later. The actuating member 55 urged upward in the direction rises, and the drawers 104 and 105 can be unlocked simultaneously.

  Next, the structure of the linkage tool 54 will be described with reference to FIGS. As shown in FIG. 8, bearing holes 71a and 71b are formed on the upper and lower sides of the coupling body 71 made of synthetic resin such as polyacetal, polypropylene, polyethylene terephthalate, nylon or ABS, and the output piece 86 is inserted on one side. The upper and lower long holes 71d are formed on the other side surface. In addition, on the lower surface of the upper plate, axially symmetric slopes 82a and 82b that are in contact with slopes 83a and 83b, which are cams on the upper end surface of the upper and lower end face cam body 73 described later, are formed. Since the slopes 82a and 82b are cam followers, the slopes are not limited to slopes, and can be appropriately formed into a rod-like shape with a rounded tip or a roller. And as above-mentioned, it attaches to the side rod 131 by the engagement pieces 71e and 71f and the locking pieces 71g and 71h.

  Further, a rotation input body 72 made of synthetic resin such as polyacetal, polypropylene, polyethylene terephthalate, nylon, or ABS includes a rotation lever 72a extending in the horizontal direction, and an upper circle constituting a rotation axis of the rotation lever 72a. The shaft 72b is composed of a vertically long rectangular shaft 72c and a lower round shaft 72d. The tip of the rotating lever 72a is the driven portion 81, and a circumferential groove 72e is formed on the lower round shaft 72d.

  Further, as shown in FIGS. 8 and 9, the upper and lower end cam bodies 73 made of synthetic resin such as polyacetal, polypropylene, polyethylene terephthalate, nylon, or ABS have slopes 83a and 83b formed on the upper end surface in an axially symmetrical manner. It is an end face cam in which slopes 84a and 84b are formed symmetrically on the end face, and the slope has a shape that increases and decreases monotonously when moving in the circumferential direction. Then, a square hole 73a is formed which is fitted around the square shaft 72c of the rotation input body 72.

  Furthermore, as shown in FIG. 8, the output body 74 made of synthetic resin such as polyacetal, polypropylene, polyethylene terephthalate, nylon, or ABS has slopes 84a and 84b that are cams on the lower end surface of the upper and lower end cam body 73. Axisymmetrical inclined surfaces 85a and 85b are formed. Since the slopes 85a and 85b are cam followers, the slopes are not limited to slopes, and can be appropriately formed into a rod-like shape with a rounded tip or a roller.

  Further, the output body 74 is loosely fitted around the angular axis 72c of the rotation input body 72, and a through hole 74a having a size that does not transmit torque due to the rotation of the rotation input body 72 is formed. A guide pin 74b that engages with the elongated hole 71d of the linkage main body 71 protrudes, and on the opposite side of the guide pin, the guide pin 74b is inserted into the notch 71c of the linkage main body 71 to engage with the engagement hole of the operating member 55. An output piece 86 is provided that engages 55a.

  Next, a method for assembling the linkage 54 will be described. The rotation input body 72 is inserted from above the upper bearing hole 71a of the linkage main body 71, and in the linkage main body 71, the square shaft 72c is engaged with the square hole 73a of the upper and lower end cam body 73, and below that. In the state where the guide pin 74b of the output body 74 is engaged with the long hole 71d and the output piece 86 is inserted into the notch 71c, the square shaft 72c is inserted into the through hole 74a of the output body 74, and further below The square shaft 72 c is inserted into the coil of the compression coil spring 75. The upper circular shaft 72b of the rotation input body 72 is engaged with the upper bearing hole 71a of the linkage main body 71 and the lower circular shaft 72d is engaged with the circumferential groove 72e of the lower circular shaft 72d in a state where the lower circular shaft 72d is engaged with the lower bearing hole 71b. If 76 is attached, the linking tool 54 is easily assembled and unitized.

  The compression coil spring 75 is an elastic member that urges the operation member 55 in the unlocking direction. Since the output body 74 is urged upward by the compression coil spring 75, the operation member 55 is also connected via the output piece 86. It is urged upward. Therefore, when the third plate 63 of the lock operating member 53 does not press the driven portion 81 of the linkage 54 by the key operation of the lock 52, the operating member 55 is in the raised position, and the locking portions 59, 59 is in an unlocked state where it is not located in front of the stoppers 46, 46 of the drawers 104, 105.

  The unlocked linkage 54 is as shown in FIG. 10A. From this state, the third plate 63 of the lock operating member 53 is driven by the key 52 of the lock 52 so that the driven portion of the linkage 54 is driven. When 81 is pressed, the rotation input body 72 rotates as indicated by an arrow B in FIG. 10B, and the angular shaft 72c and the upper and lower end cam bodies 73 also rotate in the same direction. On the other hand, the linkage main body 71 and the output body 74 do not rotate. The rotation is converted into a downward linear motion by a double cam mechanism between the slopes 84a and 84b at the lower end surface of the output body and the slopes 85a and 85b of the output body 74, as indicated by an arrow C in FIG. Thus, the output piece 86 descends.

  As described above, the linkage 54 that converts the rotation into the linear motion uses the double cam mechanism using the cam body 73 formed with the end face cams in the vertical direction, and thus is simple and compact. With the configuration, a large vertical stroke of the output piece 86 can be obtained even if the rotation angle of the rotation lever 72a of the rotation input body 72 is small.

  The linkage 54 is easily assembled as described above, and is unitized in a state including the coil spring 75 that is an elastic member that biases the operating member 55 in the unlocking direction. Since it can be attached, it is not necessary to separately attach the compression coil spring to the lower side of the actuating member 55, and the assembling workability can be greatly improved.

It is a vertical left view which shows the wagon provided with the drawer | drawer of 2 steps | paragraphs of upper and lower sides with which the drawer lock apparatus in the storage furniture which concerns on embodiment of this invention was used. It is a disassembled perspective view of a drawer. It is the disassembled perspective view seen from the back side which shows the structure of a lock and a lock operation member. It is the perspective view seen from the front side which shows the structure of a lock and a lock operation member. It is the perspective view seen from the front side which shows the relationship between a lock and a lock operation member, a coupling tool, and an operation member. It is the perspective view seen from the front side which shows the relationship between a lock and a lock operation member, a coupling tool, and an operation member. It is a left side enlarged view which shows the state which assembled the linkage tool and the operation member in the side cage. It is a disassembled perspective view of a connection tool. It is an external view of an upper-lower-end surface cam, (a) is a front view, (b) is a side view, (c) is a bottom view. It is operation | movement explanatory drawing of a coupling tool, (a) has shown the unlocked state, (b) has shown the locked state.

Explanation of symbols

101 Wagon (storage furniture)
102 Wagon body (storage furniture body)
104 Upper drawer 105 Lower drawer 131 Side rod (right front reinforcement)
132 Guide groove 133 Linkage attachment hole 134 Through holes 135a, 135b Notches 136a, 136b Locking hole 1 Front plate 2 Back cover 3 Body plate 4 Rear plate 30 Engagement hole 46 Stopper 47 Side opening 48a, 48b Engagement hole 51 Locking device 52 Lock 52a Eccentric pin 52b Mounting shaft 52c Notch 52d Recess 53 Lock operating member 54 Linkage tool 55 Actuating member 55a Engagement hole 56 Seat plate 56a Through hole 56b Engagement piece 56c Stepped part 57 Mounting plate 57a, 57b Engagement Joint convex portion 57c Engagement hole 57d Stopping portion 57e Holding plate 58 Cylinder portion 58a Key hole 59 Locking portion 61 First plate-like body 61a Elongated hole 62 Second plate-like body 63 Third plate-like body 63a Tip Portion 64 Guide member 65 Mounting portion 65a Locking piece 66 Through hole 67 Guide rib 68 Guide wall 71 Linkage tool body 71a, 71b Bearing hole 71c Notch 71d Long holes 71e, 71f Engaging pieces 71g, 71h Locking piece 72 Rotating input body 72a Rotating lever 72b Upper round shaft 72c Square shaft 72d Lower round shaft 72e Circumferential groove 73 Upper and lower end surface cam body 73a Square hole 74 Output body 74a Hole 74b Guide pin 75 Compression coil spring (elastic member)
76 Retaining Ring 81 Driven Part 82a, 82b Slope (Cam Follower)
83a, 83b, 84a, 84b Slope 85a, 85b Slope (cam follower)
86 Output piece

Claims (2)

An actuating member supported on the side rail of the storage furniture body, a plurality of vertical in which the elastic member for urging the actuating member in the unlocking direction, a stopper for engaging with the engaging portion provided on the actuating member is provided And a lock having a lock operation member provided on the front plate of the specific drawer, which is protruded and retracted to the side in accordance with the locking or unlocking operation, and the operation force of the lock operation member is applied to the operating member. A drawer lock device for storage furniture to be transmitted ,
The lock operates an eccentric pin protruding backward from the back surface of the lock with a key, and the lock operating member is formed with a long hole that engages with the eccentric pin, and the thickness direction thereof is substantially the front-rear direction. A substantially vertical first plate-like body, a substantially vertical second plate-like shape that is suspended from the end portion on the side flange side of the first plate-like body and whose thickness direction is substantially the front-rear direction. And a substantially horizontal third plate-like body extending in the scissor direction from the end of the second plate-like body and having a thickness direction substantially vertical. A drawer lock device for storage furniture. The lock is provided between the front plate and the rear cover on the rear side, and a resin guide member in which a through hole in the left-right direction is formed is attached to a side opening of the back cover, and the guide member locking device of the drawer in the storage furniture according to claim 1, wherein formed by guiding the free end portion of the lock operation member by the guide piece provided on the inner surface or the inner surface of the through hole.

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