JP4212926B2 - Sliding door lock device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a locking device that regulates the sliding operation of a plurality of sliding doors that are slid at the opening edge of a storage furniture body to close the opening.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a storage furniture body having a predetermined storage space and partially formed with an opening that can open the storage space to the outside, and a plurality of sliding doors that open and close the opening by sliding movement at the opening edge of the opening. As a lock device applied to storage furniture equipped with, the left and right sliding doors in the position where the opening is closed are connected by engaging each sliding door in the front and back using a suitable cylinder lock. And a spring plate member (lock plate) that protrudes rearward by an appropriate operation at a substantially central portion in the height direction of the rear surface of one of the sliding doors positioned forward. In the closed position, there is a structure in which the position of both sliding doors is fixed by causing the jumping plate member and a part of the other sliding door located behind to interfere with each other.
[0003]
[Non-Patent Document 1]
"KOKUYO General Catalog Office Furniture 2002", KOKUYO Co., Ltd., January 2002, pages 294-295
[0004]
[Problems to be solved by the invention]
However, the conventional locking device has a configuration that fixes only one point in the height direction of the sliding door. Therefore, even if the sliding door is fixed at the closed position, if the sliding door at the closed position is slid forcibly or by an erroneous operation, the sliding door is slightly centered around one point where the lock device is provided. It rotates and tilts forward or backward relative to the sliding direction, and a gap is created between the sliding door and the storage furniture body. When the sliding door is deformed due to the above-mentioned problems, so-called biting occurs and the sliding door may be damaged. As described above, the conventional locking device is configured such that the sliding operation or the rotation operation of the sliding door can be allowed even when each sliding door is locked at the closed position, and the sliding door at the closed position is fixed. There is a problem that the original function as a lock device cannot be sufficiently achieved.
[0005]
The present invention has been made paying attention to such a problem, and a main object of the present invention is to regulate a sliding door rotation device that realizes a good locked state by regulating a sliding operation or a rotation operation of the sliding door in the closed position. Is to provide.
[0006]
[Means for Solving the Problems]
  That is, the sliding door lock device according to the present invention includes a storage furniture main body having a predetermined storage space and an opening that can open the storage space to the outside, and sliding movement at the opening edge of the opening. Applied to storage furniture having a plurality of sliding doors for opening and closing the opening.AndA plurality of lock mechanisms for restricting sliding movement of each sliding door located at a position where the opening of the storage furniture body is closed, and an operation unit capable of operating the lock mechanism in a locked state and an unlocked state. The sliding door is provided with a mechanism spaced apart at least in the upper half and the lower half of the sliding door, and each locking mechanism includes a lock plate that protrudes backward by the operating force of the operating portion, and is located in the front. Each locking mechanism is arranged on the back side of the door, and in the locked state, a part of the sliding door located rearward and a part of each of the locking plates are set to contact or approach each other.The operation unit includes a first movable body that moves up and down by a given operation force, and each of the lock mechanisms can move up and down as the first movable body moves up and down. And a support member that rotatably supports the lock plate with respect to the sliding door, and a protrusion is provided in the second movable body, and a guide hole that can guide the protrusion is formed in the lock plate. The lock plate is rotated backward with respect to the sliding door by the vertical movement of the protrusion of the second movable body corresponding to the movement of the first movable body that moves up and down based on the operation force of the operation unit. The second movable body of each lock mechanism is connected by an interlocking member, and a protrusion that can be inserted into a guide hole provided in the lock plate is provided in the second movable body and As the first movable body moves up and down, the protrusion guides to the guide hole. Is, locking plate with the vertical movement of the second movable body protrudes rearward pivotIt is characterized by that.
[0007]
Here, “the upper half part of the sliding door” means a part extending from the substantially middle part of the sliding door in the height direction to the upper end, and “the lower half part of the sliding door” means the lower part from the substantially middle part of the sliding door in the height direction. It means the part over.
[0008]
  If this is the case, the locking mechanism is provided at least at two or more locations across the center of the sliding door in the height direction, so the sliding door fixed at the closed position is slid forcibly or accidentally. Even so, the sliding door does not rotate around the portion where the lock mechanism is provided, and does not tilt forward or backward with respect to the sliding direction. As a result, it is possible to effectively prevent the sliding doors or the locking mechanism from being damaged without causing each sliding door to be bitten. In addition, it is possible to prevent a gap from being generated between the sliding door and the storage furniture body. In this way, the sliding operation and the rotation operation of the sliding door can be restricted, and each sliding door can be firmly fixed at the closed position. In addition, in the locked state, a part of the sliding door located behind and each lock plate abut or approach each other, so that sliding movement of each sliding door can be reliably prevented. For example, when the lock mechanism is provided at two or more places, the sliding movement of the sliding door can be more effectively regulated.In addition, the operation unit includes a first movable body that moves up and down by a given operation force, and each of the lock mechanisms includes the first movable body. 1 A second movable body that can move up and down with the vertical movement of the movable body, and a support member that rotatably supports the lock plate with respect to the sliding door, and a protrusion is provided on the second movable body, A guide hole capable of guiding the protrusion is formed in the lock plate, and the protrusion of the second movable body moves up and down in response to the operation of the first movable body that moves up and down based on the operation force of the operation portion. By doing so, the lock plate is set so as to rotate backward with respect to the sliding door, so that it can be brought into the locked state by only one operation of operating the operation unit, and can be made easy to use and practical. .
[0009]
In particular, in order to realize a strong locked state using the minimum necessary locking mechanism, it is preferable that the two locking mechanisms are provided, and the upper and lower ends of the sliding door are provided in pairs.
[0010]
As a specific aspect, it includes an interlocking member for interlocking each of the lock mechanisms, one lock mechanism is operated in accordance with an operation force applied to the operation unit, and the other lock mechanism is the above-described lock mechanism. There are those that operate in conjunction with the one locking mechanism via the interlocking member by operating force.
[0012]
Further, if the interlocking member for interlocking the lock mechanisms is a columnar one and one interlocking member is attached between the second movable bodies, the relative position between the second movable bodies is always set. Can be kept at regular intervals.
[0013]
If the operation unit includes a key insertion hole and includes a cylinder lock that rotates by rotating a key inserted into the key insertion hole, the operation force can be applied by a simple operation.
[0014]
Specifically, the operation unit includes the cylinder lock and a first movable body that moves up and down in response to the rotation operation of the cylinder lock, and the rotation operation of the cylinder lock is the first operation. The thing which has the conversion part converted into the vertical motion of a movable body is mentioned.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0016]
The locking device according to the present embodiment is applied to a storage furniture G as shown in FIG.
[0017]
The storage furniture G has a predetermined storage space S, a storage furniture main body G1 having an opening K on the front surface that can open the storage space S to the outside, and sliding movement at the opening edge K1 of the opening K. A pair of sliding doors D1 and D2 that open and close the opening K is provided.
[0018]
The storage furniture body G1 forms the opening K on the front surface by assembling a top plate G11, a bottom plate G12, a pair of left and right side plates G13, and a back plate G14 formed by bending a steel material, for example. Is. For convenience of explanation, in the following explanation, one end that is opened is a front end (front end portion), and one end where the back plate G14 is located is a rear end (rear end portion).
[0019]
Briefly, the top plate G11 has a substantially rectangular shape in plan view, and a bottom plate G12 having substantially the same type as the top plate G11 is provided at a position opposite to the top plate G11. Rails C that guide the sliding movement of the sliding doors D1 and D2 are provided in substantially the entire width direction of the lower surface side front end portion of the top plate G11 and the upper surface side front end portion of the bottom plate G12. The top plate G11 and the bottom plate G12 are provided between the upper end portions and the lower end portions of the side plates G13, and the back plate G14 is provided between the rear ends of the side plates G13. In addition, it has the to-be-latched part which can moor the latching claw R1 of the latch mechanism R mentioned later in the predetermined location of the front end side of the side plate G13 (illustration omitted).
[0020]
The right sliding door (hereinafter referred to as “first sliding door”) D1 located in front and the left sliding door (hereinafter referred to as “second sliding door”) D2 located behind the first sliding door D1 are shown in FIG. As shown in FIG. 2 and the like, the opening edge K1 is slid in the width direction using rails C provided on the top plate G11 and the bottom plate G12, and the rear frame material mainly constituting the rear surface side, The front frame material constituting the front side is combined with an appropriate mounting member (not shown), and approximately half of the width direction of the opening K is short and the height direction is long. The front view is rectangular. For convenience of explanation, in a state where the sliding doors D1 and D2 are attached to the storage furniture body G1, one end located on the back plate G14 side is the rear (rear edge) and the other end is the front (front edge). (Hereinafter used interchangeably).
[0021]
A pair of wheels F guided by the rail C is provided at predetermined positions on the upper and lower ends of the sliding doors D1 and D2, respectively. In addition, a pulling handle T provided over substantially the entire area along one side edge portion, and a latch mechanism R for mooring the sliding doors D1 and D2 to the storage furniture main body 1 at a substantially central portion in the height direction of the pulling handle T are provided. ing. The handle T is formed by extruding an aluminum material, for example, and integrally formed with a finger hook portion that opens to the front side from the upper end to the lower end. The finger-hanging portion has a space that allows a standard adult fingertip to be sufficiently inserted so that a part of the finger-hanging portion can be operated. The latch mechanism R has a mooring claw R1 that can be moored at a moored portion formed on the front end side of the side plate G13, and is configured to be able to operate synchronously by operating a pulling handle T. In the present embodiment, in order to stabilize the rotation operation of the pull handle T, an appropriate auxiliary member H that assists the rotation operation of the pull handle T is provided in the vicinity of the upper and lower ends of each sliding door D1, D2. Yes.
[0022]
Therefore, in this embodiment, the locking device 1 is provided on the back side of the first sliding door D1.
[0023]
As shown in FIGS. 2 to 5 and the like, the lock device 1 is a pair of upper and lower locks that regulate the sliding movement of the sliding doors D1 and D2 at the position (closed position) where the opening K of the storage furniture body G1 is closed. A mechanism 2, an interlocking member 3 for interlocking each lock mechanism 2, and an operation unit 4 capable of operating the lock mechanism 2 in a locked state and an unlocked state are provided.
[0024]
As shown in FIGS. 3 and 4 and the like, each lock mechanism 2 has a lock plate 5 that protrudes rearward by an operation force input to the operation unit 4, and a first plate located at one side end of the lock plate 5. 2 It is comprised from the movable body 6 and a pair of support member 7 which supports the lock plate 5 rotatably with respect to the 1st sliding door D1.
[0025]
The lock plate 5 is shown in FIGS. 2 to 5 (FIG. 5 is an enlarged side view of the main part of the lock device 1, FIG. 5A is an unlocked state, and FIG. 5B is a view showing a locked state). As shown, the locking plate body 51 is a thin plate-like body having a length of about 4/5 in the width direction of the first sliding door D1, and is locked so as to protrude rearward from the locking plate body 51 to the first sliding door D1. One side edge of the plate body 51 is integrally provided with a protruding portion 52 formed by bending the side edge of the plate body 51 into a substantially U shape in plan view. On the other side edge of the lock plate main body 51, for example, a cap member 53 made of a synthetic resin material is engaged with an engagement hole 51 a formed in a side end portion of the lock plate main body 51, and an engagement claw 53 a provided on the cap member 53. It is attached integrally by engaging. In addition, the upper end portion of the lock plate body 51 is integrally formed with a curved portion 51b that is curved downward in a substantially U shape over the entire width direction, and at both side ends in the vicinity of the upper end portion of the lock plate body 51. The small piece 51c bent forward is formed. A guide hole 52a is formed on the outer surface of the projecting portion 52 at a constant angle and extending obliquely rearward with respect to the first sliding door D1. The guide hole 52a has a predetermined opening width into which a protrusion 61a of the second movable body 6 described later can be inserted, and is set so that the inserted protrusion 61a can move in the guide hole 52a. Yes.
[0026]
As shown in FIGS. 2 to 6 and the like (FIG. 6A is a plan view and FIG. 6B is a front view), the second movable body 6 has a substantially rectangular parallelepiped shape made of, for example, a synthetic resin material. The first unit part 61 and the second unit part 62 are integrated and configured so as not to be separated from each other via a connection part 63 that has flexibility and functions as a hinge. On one side surface of the first unit part 61, a substantially columnar projecting element 61a projecting sideways is formed. Through-grooves 61b and 62b penetrating in the height direction are formed at substantially the center in the width direction of the inner side surfaces 61A and 62A of the unit parts 61 and 62 that face each other when the unit parts 61 and 62 are assembled to each other. The second unit part 62 is formed with a first through hole 62c having a substantially rectangular shape in plan view that opens in the inner side surface 62A side and penetrates in the height direction displaced from the through grooves 61b and 62b to the front side. The through-grooves 61b and 62b have a semi-circular shape in plan view that communicates between the large groove portions 61b1 and 62b1 having a semicircular arc shape in plan view provided on the upper end side, the lower end side, and the substantially central portion, and between the large diameter portions 61b1 and 62b1 The small groove portions 61b2 and 62b2. Here, the diameters of the small groove portions 61b2 and 62b2 are set smaller than the diameters of the large groove portions 61b1 and 62b1. A front opening 62c1 that opens toward the front is formed at a substantially central portion in the height direction of the first through hole 62c. Also, a pair of engaging claws 61k are formed on the inner surface 61A of the first unit part 61, and a pair of engaging holes 62k are formed in the second unit part 62 to engage with the engaging claws 61k. The claw 61k and the engagement hole 62k are engaged with each other by using the connecting portion 63 so that the inner side surfaces 61A and 62A of the unit parts 61 and 62 are integrally assembled in a state of contacting or approaching. ing. In a state where the unit parts 61 and 62 are assembled, the through-grooves 61b and 62b are brought into contact with or close to each other to form a second through-hole 64 having a substantially circular shape in plan view that penetrates in the height direction. .
[0027]
As shown in FIGS. 2 to 5 and the like, each support member 7 is an integrally molded product made of, for example, a synthetic resin material, and has a substantially U-shaped base part 71 in front view and a substantially central position in the height direction of the base part 71. And a columnar protruding portion 72 protruding sideways from the portion.
[0028]
  Thus, in the lock mechanism 2 according to the present embodiment, the protruding portions 72 of the respective support members 7 are inserted into the curved portion 51b from the side of the lock plate main body 51, and the base portion 71 is integrated with the first sliding door D1. While being fixed to a predetermined fixing member (not shown) provided by an appropriate means, the protrusion 61a of the second movable body 6 is guided by the protrusion 52.HoleThe protrusion 61a is guided by the vertical movement of the second movable body 6 in the state of being inserted into the 52a.HoleThe lock plate 5 moves upward while being guided by 52a, and is configured to be able to rotate rearward with respect to the first sliding door D1 about the protruding portion 72 of the support member 7. The lock mechanism 2 having such a configuration is provided in a pair at the upper end and the lower end of the first sliding door D1. A small piece 51c of the lock plate main body 51 is located in the vicinity of the lower end portion of the protruding portion 72 of each support member 7 inserted into the curved portion 51b of the lock plate main body 51, and the small piece 51c prevents the protruding portion 72 from falling off. It serves as a stopper to prevent.
[0029]
As shown in FIGS. 2 to 6 and the like, the interlocking member 3 has a substantially cylindrical shape, and substantially corresponds to the separation distance between the second movable bodies 6 arranged at the upper end portion and the lower end portion of the first sliding door D1. This is an integrally molded product including a base column portion 31 having a height dimension and attachment portions 32 provided at the upper end portion and the lower end portion of the base column portion 31. The base column portion 31 has a diameter slightly smaller than the diameter of the large groove portion 61 of each of the unit parts 61 and 62. The attachment portion 32 has a diameter slightly smaller than the diameter of the small groove portions 61b1 and 62b1 of the unit parts 61 and 62 so that the upper end portion and the lower end portion of the base pillar portion 31 are engaged with the second movable bodies 6. A small-diameter portion 321 having a diameter and a large-diameter portion 322 having the same diameter as the base pillar portion 31 are integrally formed in the above order. Therefore, before the unit parts 61 and 62 of the second movable body 6 are assembled to each other, the large-diameter portion 322 of the interlocking member 3 is approximately the height direction of one of the unit parts (for example, the first unit part 61). The upper end portion and the lower end portion of the interlocking member 3 are fitted into the large groove portion 61b1 formed in the central portion, the small diameter portion 321 is fitted into the small groove portion 61b2, and the unit parts 61 and 62 are assembled in this state. Are attached to each second movable body 6 so as not to be removable. In this attached state, the upper end portion and the lower end portion of the base column portion 31 are accommodated in a state in which the base column portion 31 is fitted in the second through holes 64 of the second movable bodies 6 almost closely. The interlocking member 3 passes through the latch mechanism R and each auxiliary member H provided in the first sliding door D1, and can be moved up and down by an appropriate support member (not shown) provided in the latch mechanism R and auxiliary member H. It is supported.
[0030]
The operation unit 4 is disposed above the handle T provided to the first sliding door D1 in FIGS. 2, 3 and 5 and the like, and mainly according to the rotation of the cylinder lock 8 and the cylinder lock 8. A first movable body 9 that moves up and down is provided.
[0031]
2, 3 and 5, the cylinder lock 8 includes a case 81 and a key insertion hole 82 a exposed on the front edge side of the first sliding door D <b> 1 so as to be rotatable. And a projection 82b that engages with the first movable body 9 is provided integrally with the rear end of the inner cylinder 82. A guide plate 81 a for guiding the first movable body 9 is disposed on the back side of the case 81. Since the cylinder lock 8 having a structure widely known in the field can be used, detailed description thereof is omitted.
[0032]
The first movable body 9 is, for example, one sheet as shown in FIG. 7 (FIG. 7A is a perspective view, and FIG. 7B is a diagram in which a part attached to the second movable body 6 is omitted). A base end 91 that moves up and down in the case 81, a projecting piece 92 that projects from the one end of the base end 91 in a substantially horizontal direction, and a horizontal piece A first hanging piece 93 formed by bending the lower end of 92 to the front and hanging down; a second hanging piece 94 formed by bending the lower end of the first hanging piece 93 forward and hanging; and a second hanging piece The front piece portion 95 is formed by bending the lower end of 94 forward. Concave and convex portions 91 a are respectively formed on the upper end portion and the lower end portion on the other side end side of the base end portion 91. The shape of the uneven portion 91a corresponds to the shape of the guide plate 81a. Further, a lateral hole 91b extending in the width direction and a vertical hole 91c extending in the height direction are formed in a region near the center of the base end portion 91. A protrusion 82b provided on the inner cylinder 82 of the cylinder lock 8 is inserted into the horizontal hole 91b, while a fixed shaft 81b protruding forward from the back side of the case 81 is inserted into the vertical hole 91c. . The horizontal hole 91 b and the protrusion 82 b inserted into the horizontal hole 91 b function as a conversion unit that converts the rotation operation of the cylinder lock 8 into the vertical movement of the first movable body 9. Thus, the lower end portion and the front piece portion 9 of the second hanging piece 94 are fitted to the first through hole 62c and the front opening 62c1 formed in the second unit part 62, so that the second movable body 6 is fitted. Install in one piece. The first movable body 9 is attached to the second movable body 6 by attaching the lower end portion of the second hanging piece portion 94 and the front piece portion 95 to the first through hole 62c before the unit parts 61 and 62 are assembled to each other. And fitting to the front opening 62c1, and then assembling the unit parts 61 and 62. Moreover, in this embodiment, the 1st movable body 9 is attached only to the 2nd movable body 6 located in the upper end part of the 1st sliding door D1.
[0033]
Next, the operation of the locking device 1 having such a configuration will be described with reference to FIGS. 3, 5, and 8. FIG.
[0034]
First, in a state where the sliding doors D1 and D2 are slid and the opening K is closed, a key (not shown) is inserted into the key insertion hole 82a of the inner cylinder 82, and the key is rotated approximately 180 degrees (FIG. 8). It is rotated in the direction of arrow A. Note that the key insertion hole is omitted in FIG. With this operation, the inner cylinder 82 rotates, and the protrusion 82b provided at the rear end of the inner cylinder 82 rotates in a state of being inserted into the horizontal hole 91b formed in the base end portion 91 of the first movable body 9. While moving upward, the rotational movement of the cylinder lock 8 is converted into the vertical movement of the first movable body 9. As a result, the first movable body 9 moves upward (in the direction of arrow B in the figure) while being guided through the vertical hole 91c by the fixed shaft 81b. And the 2nd movable body 6 located in an upper end part respond | corresponds to operation | movement of the 1st movable body 9, and moves to the upper direction (arrow C direction of the figure), and the interlocking member 3 also moves upwards (as shown in the figure). The second movable body 6 is moved in the direction of arrow D) and moved upward in conjunction with the second movable body 6 located at the upper end via the interlocking member 3. As a result, the protrusions 61 a provided in the second movable bodies 6 move upward while being guided by the guide holes 52 a formed in the protrusions 52 of the lock plates 5. By this series of operations, each lock plate 5 is rotated rearward (in the direction of arrow E in FIG. 5) with respect to the first sliding door D1 about the support member 7, and the lower ends of the lock plate main bodies 51 are almost simultaneously. The locked state protrudes backward.
[0035]
Thus, in the locked state, the lock plates 5 located at the upper end and the lower end of the first sliding door both project rearward from the first sliding door D1 and try to slide the first sliding door D1 or the second sliding door D2. In this case, the side edge of the second sliding door D2 or an appropriate door stop (not shown) provided on the side edge of the second sliding door D2, and the cap member 53 attached to the lock plate body 51 or the lock plate 5 are provided. Further sliding movements are restricted by mutual contact.
[0036]
Further, in order to release the locked state (non-locked state), a key may be inserted into the key insertion hole 82a and rotated again by 180 degrees. Along with this operation, each member performs the reverse operation to the above, returning to the state before the locked state (FIGS. 5A and 8B), and allowing the sliding doors D1 and D2 to slide. Become. Briefly, by rotating the key approximately 180 degrees, the protrusion 61 a provided in each second movable body 6 moves downward while being guided by the guide hole 52 a formed in the protrusion 52 of each lock plate 5. Accordingly, each lock plate 5 rotates forward with respect to the first sliding door D1 with the support member 7 as an axis, and returns to the state before the locked state (FIGS. 5A and 8B).
[0037]
As described above, the sliding door locking device 1 according to the present embodiment is provided with the handle T provided at the position where the opening K of the storage furniture main body G1 is closed and provided over substantially the entire area along one side edge. Since the lock mechanism 2 that restricts the sliding movement of the sliding doors D1 and D2 is provided at the upper and lower ends of the first sliding door D1, the sliding doors D1 and D2 in the closed position are slid forcibly or by an erroneous operation. Even in such a case, the sliding doors D1 and D2 do not rotate forward or backward with respect to the sliding direction without rotating around the portion where the lock mechanism 2 is provided. Further, the sliding doors D1 and D2 do not cause so-called biting, and the sliding doors D1 and D2 or the lock mechanism 2 can be effectively prevented from being damaged. In this way, the sliding operation and the rotation operation of the sliding doors D1 and D2 can be restricted, and each sliding door D1 and D2 can be firmly fixed at the closed position. In addition, in this embodiment, the handle T provided over substantially the whole area along one side edge part of each sliding door D1 and D2 is provided, and the simplicity of operation of each sliding door D1 and D2 is aimed at. However, in such a case, when only one lock mechanism is provided, the sliding doors D1 and D2 can be rotated depending on the position where the handle T is operated. However, as described above, since the lock mechanism 2 is provided at the upper end and the lower end of the first sliding door D1, the sliding doors D1 and D2 can be operated regardless of the position where the handle T is gripped and operated. It can be reliably prevented from rotating around the portion where the lock mechanism 2 is provided, and the ease of operation of the sliding doors D1 and D2 is not impaired at all, and is extremely effective. In addition, each lock mechanism 2 includes a lock plate 5 that protrudes rearward with respect to the first sliding door D1 by the operation force of the operation unit 4 that can operate the lock mechanism 2 in a locked state and an unlocked state. Each locking mechanism 2 is arranged at the upper and lower ends of the rear surface side of the first sliding door D1 so that a part of the second sliding door D2 located rearward and each locking plate 5 are in contact with or close to each other in the locked state. Therefore, the sliding movement of each sliding door D1, D2 can be reliably prevented.
[0038]
In addition, by using the minimum necessary lock mechanism 2, a sliding operation is prohibited and a strong lock state can be realized. In particular, the common lock mechanism 2 can be used for the upper end portion and the lower end portion of the first sliding door D1, and the manufacturing process can be simplified and the cost can be effectively reduced.
[0039]
Further, the locking device 1 is provided with an interlocking member 3 for interlocking each locking mechanism 2 so that the locking mechanism 2 located at the upper end is operated in accordance with the operation force applied to the operation unit 4. And the locking mechanism 2 positioned at the lower end is operated in conjunction with the locking mechanism 2 positioned at the upper end via the interlocking member 3 by the operating force. Alternatively, unlocking can be performed simultaneously via the interlocking mechanism 3 by operating the operation unit 4, which is extremely convenient and easy to use. Further, since the lock mechanism 2 at the lower end is driven via the interlocking member 3, any of the lock mechanisms 2 is directly operated by the operation force of each operation section 4 provided corresponding to each lock mechanism 2. Compared to products, the number of parts can be reduced and the structure can be simplified, which helps to reduce costs.
[0040]
In addition, the operation unit 4 includes a first movable body 9 that moves up and down by a given operation force, and each lock mechanism 2 can move up and down as the first movable body 9 moves up and down. And a support member 7 that rotatably supports the lock plate 5 with respect to the first sliding door D1. The second movable body 6 is provided with a protrusion 61a, and the protrusion 61a is guided to the lock plate 5. The guide hole 52a to be obtained is formed, and the protrusion 52a of the second movable body 6 moves up and down in response to the operation of the first movable body 9 that moves up and down based on the operating force of the operating portion 4, thereby causing the lock plate 5 to move up and down. Is set so as to rotate backward with respect to the first sliding door D1, it can be locked by only one operation of operating the operation unit 4, and is excellent in usability and practical. It is. In addition, the protrusion 61a provided in each second movable body 6 moves upward or downward while being guided by the guide hole 52a formed in the protrusion 52 of each lock plate 5, whereby each lock plate 5 is Compared with the conventional structure in which the lock plate is directly pushed up by a pin (corresponding to the protrusion of the present application) because the support member 7 is pivoted backward or forward with respect to the first sliding door D1. The lock plate 5 can be reliably operated by guiding the protrusion 61a to the guide hole 52a, and a stable operation can be realized.
[0041]
Furthermore, since the interlocking member 3 for interlocking each lock mechanism 2 is a column-shaped thing, and the interlocking member 3 is attached between the 2nd movable bodies 6, while the interlocking member 3 can be shape | molded easily, The relative position between the second movable bodies 6 can always be maintained at a constant interval by the interlocking member 3, and the second movable body 6 located at the lower end portion accompanying the vertical movement of the second movable body 6 located at the upper end portion. Can be moved up and down reliably.
[0042]
The operation section 4 is provided with a key insertion hole 82a, and the cylinder lock 8 that rotates by rotating the key inserted into the key insertion hole 82a is provided. It is also possible and contributes to cost reduction.
[0043]
The present invention is not limited to the embodiment described in detail above.
[0044]
For example, you may provide the lock mechanism 2 in two or more places which pinched | interposed the center part of the height direction of a sliding door at least. If it is such, the sliding movement of a sliding door can be controlled more effectively. In this case, if an interlocking member is attached between the second movable parts of each lock mechanism, each lock mechanism operates almost simultaneously via the interlocking member, so that various locking operations can be easily performed without impairing the lock function. It can be easily adapted to storage furniture with various specifications.
[0045]
In addition, when the lock mechanism is provided at two places, it is not limited to the configuration in which the lock mechanism is arranged at the upper end and the lower end of the sliding door. While providing, the other lock mechanism should just be provided in the suitable location of the site | part ranging from the approximate height direction center part of a sliding door to a lower end part.
[0046]
An operation unit may be provided corresponding to each lock mechanism. In this case, if the interlocking member is attached in the same manner as in the above-described embodiment, each lock mechanism can be operated by the operation force of any of the operation units.
[0047]
Further, the lock mechanism is not limited to the one using a lock plate, and may be, for example, a type in which the overlapping portions of the sliding doors in the closed position are connected and fixed using appropriate cylinder locks. Absent.
[0048]
Further, the number of sliding doors may be two or more. In that case, the sliding operation of each sliding door in the closed position can be restricted by appropriately devising the location of the lock mechanism.
[0049]
In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
[0050]
【The invention's effect】
  As described above, according to the present invention, since the lock mechanism is provided at least at two positions sandwiching at least the central portion in the height direction of the sliding door, the sliding door in the closed position will be slid forcibly or by an erroneous operation. Even in this case, the sliding door does not rotate around the portion where the locking device is provided, and does not tilt forward or backward with respect to the sliding direction. Further, each sliding door does not cause so-called biting, and the sliding door or the locking mechanism can be effectively prevented from being damaged. In this way, the sliding operation and the rotation operation of the sliding door can be restricted, and each sliding door can be firmly fixed at the closed position. For example, when the lock mechanism is provided at two or more places, the sliding movement of the sliding door can be more effectively regulated.In addition, the operation unit includes a first movable body that moves up and down by a given operation force, and each of the lock mechanisms includes the first movable body. 1 A second movable body that can move up and down with the vertical movement of the movable body, and a support member that rotatably supports the lock plate with respect to the sliding door, and a protrusion is provided on the second movable body, A guide hole capable of guiding the protrusion is formed in the lock plate, and the protrusion of the second movable body moves up and down in response to the operation of the first movable body that moves up and down based on the operation force of the operation portion. By doing so, the lock plate is set so as to rotate backward with respect to the sliding door, so that it can be brought into the locked state by only one operation of operating the operation unit, and can be made easy to use and practical. .
[Brief description of the drawings]
FIG. 1 is an overall perspective view showing storage furniture according to an embodiment of the present invention.
FIG. 2 is a rear view schematically showing the first sliding door in the same embodiment with a part thereof omitted.
FIG. 3 is an enlarged view showing a main part of FIG. 2;
FIG. 4 is an exploded rear perspective view of the lock mechanism in the same embodiment.
FIG. 5 is a side view schematically showing a part of FIG. 3 omitted.
FIG. 6 is a plan view and a front view of a second movable body in the present embodiment.
FIG. 7 is a perspective view of a first movable body in the present embodiment.
FIG. 8 is an explanatory diagram of operation.
[Explanation of symbols]
1 ... Locking device
2 ... Lock mechanism
3. Interlocking member
4. Operation unit
5 ... Lock plate
52a ... Guide hole
6 ... Second movable body
61a ... projecting element
7. Support member
8 ... Cylinder lock
82a ... Key insertion hole
9 ... 1st movable body
D1, D2 ... Sliding door (first sliding door, second sliding door)
G ... Storage furniture
G1 ... Storage furniture body
K ... Opening
K1 ... Opening edge
S ... Storage space

Claims (6)

A storage furniture main body having a predetermined storage space and partially formed with an opening that can open the storage space to the outside, and a plurality of sliding doors that open and close the opening by sliding movement at the opening edge of the opening. Applied to the storage furniture provided ,
A plurality of lock mechanisms for restricting sliding movement of each sliding door located at a position where the opening of the storage furniture body is closed, and an operation unit capable of operating the lock mechanism in a locked state and an unlocked state. The sliding door is provided with a mechanism spaced apart at least in the upper half and the lower half of the sliding door, and each locking mechanism includes a lock plate that protrudes backward by the operating force of the operating portion, and is located in the front. Each locking mechanism is disposed on the back side of the sliding door, and in the locked state, a part of the sliding door located at the rear and a part of each of the locking plates are set in contact with or close to each other,
The operation unit includes a first movable body that moves up and down by a given operation force, and each of the lock mechanisms can move up and down as the first movable body moves up and down, and the lock A support member that rotatably supports the plate with respect to the sliding door, and a protrusion is provided in the second movable body, and a guide hole that can guide the protrusion is formed in the lock plate. The lock plate is set to rotate backward with respect to the sliding door when the protrusion of the second movable body moves up and down in response to the movement of the first movable body that moves up and down based on the operating force. ,
The second movable bodies of the respective lock mechanisms are connected by an interlocking member, and a protrusion that can be inserted into a guide hole provided in the lock plate is provided on the second movable body and the upper and lower sides of the first movable body. A locking device for a sliding door, wherein the protrusion is guided in the guide hole along with the movement, and the lock plate rotates and protrudes rearward as the second movable body moves up and down . The sliding door locking device according to claim 1, wherein the two locking mechanisms are provided, and the upper end portion and the lower end portion of the sliding door are paired. An interlocking member for interlocking the lock mechanisms is provided, one lock mechanism is operated in accordance with an operation force applied to the operation unit, and the other lock mechanism is operated by the operation force. The sliding door locking device according to claim 1 or 2, wherein the sliding door locking device is operated in conjunction with the one locking mechanism via a door. The interlocking member for interlocking the respective locking mechanisms are of columnar, sliding door locking device according to claim 1, wherein is installed an interlocking member between the second movable member. 5. The sliding door locking device according to claim 1, 2, 3, or 4 , wherein the operating portion includes a cylinder lock that includes a key insertion hole and rotates by rotating a key inserted into the key insertion hole. The operation unit includes the cylinder lock and a first movable body that moves up and down in accordance with the rotation operation of the cylinder lock, and converts the rotation operation of the cylinder lock into a vertical movement of the first movable body. The sliding door locking device according to claim 5 , further comprising a conversion unit.

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