JP5388952B2 - Drawer interlocking device - Google Patents

Description

  The present invention relates to a drawer interlocking device, and more particularly to a drawer interlocking device in which an inner drawer installed on an upper part of a main drawer slides in the same direction as the main drawer.

  As this type of conventional drawer interlocking device, for example, the one shown in Patent Document 1 is known. In this drawer interlocking device, the inner drawer is accommodated in the storage of the cabinet body above the main drawer. The main drawer has a second projecting body projecting upward from the upper end of the back plate, and the inner drawer has a first projecting body projecting downward from the bottom plate. . When the main drawer is pulled out of the storage case, the second protrusion pushes the first protrusion so that the inner drawer is also pulled out.

JP 2010-111942 A

  However, in the drawer interlocking device of Patent Document 1, when the main drawer is pulled out of the storage case, the second drawer of the main drawer comes into contact with the first projection of the inner drawer, so that the inner drawer is the main drawer. It is to be linked to. For this reason, the inner drawer cannot be separated in the storage direction with respect to the main drawer during the drawer. As a result, it is desirable to improve usability.

  In view of the above fact, an object of the present invention is to obtain a drawer interlocking device capable of switching between interlocking and separation of a main drawer and an inner drawer.

  According to the first aspect of the present invention, there is provided a drawer interlock attached to a main drawer disposed so as to be able to be inserted into and retracted from the casing, and an inner drawer disposed so as to be capable of being inserted into and retracted from the casing and provided inside the main drawer. A device provided on the inner side surface of the housing along the moving direction of the main drawer and the inner drawer, and provided on the main drawer according to the position of the main drawer in the pull-out direction. Latch means whose upward protrusion amount is adjusted by the cam portion, and an engagement portion which is provided in the inner drawer and engages with the latch means which protrudes upward by a predetermined amount or more.

  In the drawer interlocking device according to the first aspect of the present invention, the cam portion is provided on the inner side surface of the casing along the moving direction of the main drawer and the inner drawer. When the main drawer is pulled out, the latch means provided in the main drawer moves along the cam portion in the pull-out direction. At this time, since the latch means adjusts the upward protrusion amount by the cam portion in accordance with the position of the main drawer in the pull-out direction, the latch means is provided in the inner drawer when the latch means protrudes upward by a predetermined amount or more. By engaging with the engaging portion, the inner drawer is pulled out in conjunction with the main drawer. Therefore, by changing the amount of upward protrusion of the latch means depending on the shape of the cam portion, it is possible to switch between interlocking and separation of the main drawer and the inner drawer.

  According to a second aspect of the present invention, in the drawer interlocking device according to the first aspect, the cam portion is a position where the latch means is not engaged with the engaging portion at a position in an intermediate portion in the pulling direction of the main drawer. A disengagement portion that is retracted.

  In the drawer interlocking device according to the second aspect of the present invention, when the main drawer is pulled out, the latch means is engaged by the disengagement portion provided in the cam portion at the position in the middle portion of the main drawer in the pull-out direction. The main drawer and the inner drawer are separated from each other by being retracted to a position not engaged with the portion. For this reason, only the main drawer can be moved in the drawer direction.

  According to a third aspect of the present invention, in the drawer interlocking device according to the second aspect of the present invention, the state is provided in the main drawer and retracted to a position where the latch means is not engaged with the engaging portion by the disengaging portion. A locking means for locking the latching means, and an unlocking part provided on the inner surface of the housing, for lifting the latching means upward at the middle portion of the main drawer in the storage direction and releasing the lock by the locking means; Have.

  In the drawer interlocking device according to the third aspect of the present invention, the lock means for locking the latch means is provided on the main drawer, and the latch means is retracted to a position where the latch means is not engaged with the engaging portion by the disengagement portion. The latch means is locked by the lock means. Thereby, the separated state of the main drawer and the inner drawer is maintained, and the main drawer and the inner drawer can be moved separately. In addition, the inner side surface of the housing is provided with an unlocking portion for releasing the lock by the locking means at an intermediate portion of the main drawer in the storage direction. When the main drawer is moved in the storage direction, the lock release portion The latch means is pushed upward, and the lock by the lock means is released. For this reason, the latch means can be locked and unlocked by moving the main drawer in the pull-out direction and moving in the storage direction.

  According to a fourth aspect of the present invention, in the drawer interlocking device according to any one of the first to third aspects, the cam portion holds the latch means until the main drawer is pulled out from the storage position by a predetermined distance. Do not engage with the engaging part.

  In the drawer interlocking device according to the fourth aspect, the cam portion does not engage the latch means with the engaging portion of the inner drawer until the main drawer is pulled out from the storage position by a predetermined distance. For this reason, since the inner drawer does not move, the load when the main drawer is pulled out from the storage position can be reduced.

  According to a fifth aspect of the present invention, in the drawer interlocking device according to the fourth aspect of the present invention, the cam portion moves the latch means when the main drawer moves in the pull-out direction more than the predetermined distance from the storage position. Engage with.

  In the drawer interlocking device according to the fifth aspect of the present invention, when the main drawer moves in the drawer direction by a predetermined distance or more from the storage position, the cam portion engages the latch means with the engaging portion of the inner drawer. For this reason, the inner drawer can be linked to the main drawer.

  According to a sixth aspect of the present invention, in the drawer interlocking device according to the third aspect of the invention, the cam portion is configured such that the latch means is engaged with the engaging portion, and the main drawer moves in a pulling direction by a predetermined distance or more. Then, the engagement between the latch means and the engagement portion can be forcibly released.

  In the drawer interlocking device according to the sixth aspect of the present invention, when the main drawer is pulled out, the latch means engages with the engaging portion of the inner drawer, and the main drawer moves in the pulling direction by a predetermined distance or more, the cam portion is The engagement between the latch means and the engaging portion of the inner drawer can be forcibly released. For this reason, the main drawer and the inner drawer in the engaged state can be forcibly separated.

  A seventh aspect of the present invention is the drawer interlocking device according to any one of the first to sixth aspects, further comprising a biasing unit that biases the latch unit in a direction in which the latch unit is pressed against the cam portion.

  In the drawer interlocking device according to the seventh aspect of the invention, since the urging means urges the latch means in a direction of pressing the latch means against the cam portion, it is possible to prevent the latch means from being insufficiently projected. As a result, the latch means can be reliably engaged with the engaging portion of the inner drawer.

  According to an eighth aspect of the present invention, in the drawer interlocking device according to any one of the first to seventh aspects, the engagement portion of the inner drawer is related to a case where the protruding amount of the latch means is larger than a predetermined value. A vertical portion that joins, and an inclined portion that is continuous with the vertical portion or provided on the vertical portion via a horizontal portion.

  In the drawer interlocking device according to the eighth aspect of the invention, when the protrusion amount of the latch means is larger than a predetermined value, the latch means engages with the vertical portion of the engaging portion of the inner drawer, and the protrusion amount of the latch means is a predetermined value. In the following cases, the engaging portion of the inner drawer is continuous with the vertical portion or engaged with the inclined portion provided on the vertical portion via the horizontal portion. Therefore, the engagement between the latch means and the engaging portion of the inner drawer can be forcibly released by setting the protruding amount of the latch means to a predetermined value or less and engaging the latch means with the inclined portion of the engaging portion. As a result, the engagement between the main drawer and the inner drawer in the engaged state can be forcibly released with a simple configuration.

  Since the drawer interlocking device according to the first aspect of the present invention has the above-described configuration, it is possible to switch between interlocking and separation of the main drawer and the inner drawer.

  Since the drawer interlocking device according to the second aspect of the present invention has the above-described configuration, only the main drawer can be moved in the drawer direction.

  Since the drawer interlocking device according to the third aspect of the present invention has the above-described configuration, the latch means can be locked and unlocked by moving the main drawer in the drawing direction and the storing direction.

  Since the drawer interlocking device according to the fourth aspect of the present invention has the above-described configuration, it is possible to reduce a load when the main drawer is pulled out from the storage position.

  Since the drawer interlocking device according to the fifth aspect of the present invention has the above configuration, the inner drawer can be interlocked with the main drawer.

  Since the drawer interlocking device according to the sixth aspect of the present invention has the above-described configuration, the main drawer and the inner drawer in the engaged state can be forcibly separated.

  Since the drawer interlocking device according to the seventh aspect of the present invention is configured as described above, the latch means can be reliably engaged with the engaging portion of the inner drawer.

  Since the drawer interlocking device according to the eighth aspect of the present invention is configured as described above, the engagement between the main drawer and the inner drawer in the engaged state can be forcibly separated with a simple configuration.

(A) is a schematic side view in the idling section which shows the principal part of the drawer | drawing-linkage apparatus which concerns on one Embodiment of this invention, (B) is a longitudinal cross section along the width direction of the latch apparatus in an idling section. FIG. (A) is a schematic side view in the interlocking | linkage area which shows the principal part of the drawer | drawing interlocking apparatus which concerns on one Embodiment of this invention, (B) is a longitudinal cross-sectional view along the width direction of the latch apparatus in an interlocking | linkage area. is there. (A) is a schematic side view in the half interlocking section which shows the principal part of the drawer | drawing interlocking apparatus which concerns on one Embodiment of this invention, (B) is a longitudinal cross section along the width direction of the latch apparatus in a half interlocking section. FIG. (A) is a schematic side view in the separation section which shows the principal part of the drawer | drawing interlocking apparatus which concerns on one Embodiment of this invention, (B) is a longitudinal cross-sectional view along the width direction of the latch apparatus in a separation section. is there. (A) is a schematic side view showing the process of moving the main drawer in the storage direction in a state where the latch of the drawer interlocking device according to one embodiment of the present invention is locked, and (B) is moved in this storage direction. It is the longitudinal cross-sectional view along the width direction of the latch apparatus in a process. (A) is a schematic side view which shows the state by which the latch of the drawer | drawing-linkage apparatus which concerns on one Embodiment of this invention was cancelled | released, (B) is along the width direction of a latch apparatus when a lock | rock is cancelled | released. FIG. It is a longitudinal cross-sectional view which shows the structure of the latch apparatus vicinity of the drawer | drawing interlocking apparatus which concerns on one Embodiment of this invention in the state along the width direction. It is a disassembled perspective view which shows the principal part of the drawer | drawing-linkage apparatus which concerns on one Embodiment of this invention. It is a perspective view showing a kitchen cabinet to which a drawer interlocking device according to an embodiment of the present invention is applied. It is a schematic sectional side view in the accommodation state which shows the kitchen cabinet to which the drawer | drawing-out interlocking apparatus which concerns on one Embodiment of this invention was applied. It is a schematic sectional side view in the interlocking | linkage area which shows the kitchen cabinet to which the drawer | drawing-linkage apparatus which concerns on one Embodiment of this invention was applied. It is a schematic sectional side view in the isolation | separation area which shows the kitchen cabinet to which the drawer | drawing-out interlocking apparatus which concerns on one Embodiment of this invention was applied.

  A drawer interlocking device according to an embodiment of the present invention will be described with reference to FIGS. In the figure, arrow FR indicates the front direction (drawing direction) of the kitchen cabinet, arrow UP indicates the upward direction of the kitchen cabinet, and arrow W indicates the width direction of the kitchen cabinet.

  As shown in FIG. 9, the kitchen cabinet 10 to which the drawer interlocking device of the present embodiment is attached includes a cabinet body 12 that is a casing. The cabinet body 12 has an internal space covered with a U shape by a back plate 12A and left and right side plates 12B, and the front surface facing the back plate 12A is an opening 12C.

  Further, the kitchen cabinet 10 includes a main drawer 14 housed inside the cabinet body 12 and an inner drawer 16 housed above the main drawer 14.

  As shown in FIG. 10, the main drawer 14 and the inner drawer 16 with respect to the cabinet body 12 are provided on the side portions of the main drawer 14 and the inner drawer 16 and the inner side surfaces of the left and right side plates 12B of the cabinet body 12. Slide members 20 and 22 and a rail member 21 for sliding in the drawer direction (arrow A direction in FIG. 10) which is the front of the kitchen cabinet 10 and the storage direction (arrow B direction in FIG. 10) which is the rear of the kitchen cabinet 10. , 23 are provided.

  The slide members 20 and 22 and the rail members 21 and 23 have a well-known configuration and will not be described in detail. However, the main drawer 14 and the inner drawer 16 are smoothly slid back and forth within a predetermined range. The main drawer 14 and the inner drawer 16 can be supported even when they are fully opened.

  The main drawer 14 includes an end plate (front plate) 14A covering the opening 12C of the cabinet body 12, a back plate 14B provided on the back side facing the end plate 14A, two side plates 14C, and a bottom plate 14D. Yes. The main drawer 14 is covered with a mirror plate 14A, a back plate 14B, two side plates 14C, and a bottom plate 14D, and has a storage space 14E that is open at the top.

  The inner drawer 16 includes a front plate 16A, a back plate 16B provided on the back side facing the front plate 16A, two side plates 16C, and a bottom plate 16D. The inner drawer 16 is covered with a front plate 16A, a back plate 16B, two side plates 16C, and a bottom plate 16D, and has a storage space 16E that is open at the top.

  The depth length of the storage space 16E of the inner drawer 16 is shorter than the depth length of the storage space 14E of the main drawer 14, and the storage space 14E of the main drawer 14 includes the end plate 14A of the main drawer 14 and the inner drawer 16. Is divided into a front space between the front plate 16A and a rear space between the front plate 16A of the inner drawer 16 and the back plate 14B of the main drawer 14. Accordingly, the rear space in the storage space 14E of the main drawer 14 stores kitchen utensils that fit in the height from the bottom plate 14D of the main drawer 14 to the bottom plate 16D of the inner drawer 16, and the height that cannot be accommodated in this rear space. The kitchen utensils to be stored in the front space.

(Drawer interlocking device)
As shown in FIG. 10, cam members 26 are provided on the inner side surfaces of the left and right side plates 12 </ b> B in the cabinet body 12. The cam member 26 has a long shape, and is provided along the front-rear direction of the cabinet body 12 which is the moving direction of the main drawer 14 and the inner drawer 16 (arrow A and arrow B in FIG. 10). The cam member 26 is disposed below the bottom plate 16D of the inner drawer 16 and adjacent to the back plate 14B and the side plate 14C of the main drawer 14.

  As shown in FIGS. 1, 7, and 8, the cam member 26 includes a cam body portion 26 </ b> A that extends in the front-rear direction of the cabinet body 12 and protrudes inward in the width direction from the side plate 12 </ b> B of the cabinet body 12. And a side wall portion 26B provided on the front side in the drawing direction of the main drawer 14 so as to contact the side plate 12B. A latch cam surface 40 as a cam portion is formed along the longitudinal direction of the cam member 26 (moving direction of the main drawer 14 and the inner drawer 16) at the lower portion of the cam body 26A. More specifically, the latch cam surface 40 is formed by a lower wall portion of the cam body portion 26A, and the latch cam surface 40 changes in the vertical position along the longitudinal direction of the cam member 26. doing.

  Further, as shown in FIG. 8, the side wall portion 26B of the cam member 26 is provided with a substantially triangular unlocking portion 26C in a side view, below the intermediate portion in the longitudinal direction of the cam body portion 26A. . An unlocking cam surface 46 is formed on the upper wall portion of the unlocking portion 26 </ b> C, and the unlocking cam surface 46 changes in the vertical direction along the longitudinal direction of the cam member 26.

  As shown in FIGS. 7 and 10, a latch device 36 as a latch means is disposed at the upper part on both sides in the width direction of the back plate 14 </ b> B of the main drawer 14. As shown in FIGS. 7 and 8, the latch device 36 includes a box-shaped case 36A and an upper wall portion 36B fixed to the upper portion of the case 36A. A latch 50 is disposed inside the case 36A, and the latch 50 is movable upward (in the direction of arrow C in FIG. 7) and downward (in the direction of arrow D in FIG. 7). Further, a coil spring 52 as an urging means is disposed inside the case 36A, and this coil spring 52 is applied in the direction in which the latch 50 is pressed against the latch cam surface 40 (the direction of arrow C in FIG. 7). It is fast.

  The main body 50A of the latch 50 has an elongated shape along the vertical direction, and a stopper 50B (see FIG. 7) is formed at the lower end of the main body 50A so as to protrude outward in the width direction. The upper end of the stopper 50B is in contact with the latching cam surface 40 of the cam member 26 from below. In addition, a protrusion 50D that protrudes inward in the width direction is formed at the lower end of the main body 50A, and a coil spring 52 is disposed below the protrusion 50D. An upper end portion 50C of the main body portion 50A of the latch 50 is formed in a substantially rectangular parallelepiped shape.

  The latch device 36 is provided with a lock device 54 as a lock means for locking in a state where the upper end portion 50C of the latch 50 is retracted to a position where it does not engage with an engaging portion recess 72 (see FIG. 7) of the striker 70 described later. It has been. The locking device 54 includes a locking portion 50E provided on the side of the protrusion 50D of the latch 50, a pressing member 56 that is disposed in the case 36A and presses the latch 50 in the direction of the cam member 26, and a pressing member 56. A projection 56A (see FIG. 7) that is formed on the side wall of the housing and that engages the locking portion 50E, and is arranged in the case 36A to urge the pressing member 56 in the direction of the cam member 26 (the direction of arrow E in FIG. 7). A coil spring 58.

  As shown in FIG. 7, in the locking device 54, in a state where the upper end portion 50 </ b> C of the latch 50 protrudes to a position where it engages with the engaging portion recess 72 of the striker 70, the locking portion 50 </ b> E of the latch 50 is pressed by the pressing member 56. The locking portion 50E is not locked to the protrusion 56A. On the other hand, as shown in FIGS. 4B and 5B, when the upper end portion 50C of the latch 50 is retracted to a position where it does not engage with the engaging portion recess 72 of the striker 70, the latch 50 is locked. The portion 50E moves the pressing member 56 backward against the urging force of the coil spring 58, and moves to the lower side of the protrusion 56A of the pressing member 56. In this state, the pressing member 56 presses the latch 50 by the urging force of the coil spring 58, and the locking portion 50E is locked to the protrusion 56A, so that the latch 50 is locked.

  As shown in FIG. 1A, the latch cam surface 40 is formed such that the height of the rear end portion 40A in the vicinity of the rear end portion of the cam member 26 is low. In other words, when the extension line 27 (imaginary line) is set at the same height as the lower surface of the unlocking portion 26C of the cam member 26 in a side view, from the extension line 27 of the rear end portion 40A of the latch cam surface 40. The height H1 is low. In the latch cam surface 40, the height H2 from the extension line 27 of the rear intermediate portion 40B in front of the rear end portion 40A in the front-rear direction of the cam member 26 is higher than the height of other portions. It is the highest. Further, the height H3 from the extension line 27 of the front intermediate portion 40C on the front side of the rear intermediate portion 40B in the front-rear direction of the latch cam surface 40 is lower than the height H2 of the rear intermediate portion 40B. The height is substantially the same as the height H1 of the end 40A.

  Further, the front end portion 40D as the disengagement portion of the latch cam surface 40 protrudes in a substantially triangular shape below the cam member 26 in a side view, and the height H4 of the front end portion 40D from the extension line 27 is It is the lowest compared to the height of other parts. That is, the height H4 from the extension line 27 of the front end portion 40D of the latch cam surface 40 is the height H3 from the extension line 27 of the front side intermediate portion 40C and the height H1 from the extension line 27 of the rear end portion 40A. Further, the height H2 from the extension line 27 of the rear side intermediate portion 40B is higher than the height H3 from the extension line 27 of the front side intermediate portion 40C and the extension line 27 of the rear end portion 40A. The height is higher than H1 (H2> H3 (H1)> H4).

  In addition, between the rear end portion 40A and the rear intermediate portion 40B on the latch cam surface 40 is an inclined surface 40E that is inclined upward toward the front, and the rear intermediate portion 40B and the front intermediate portion 40C In between, it becomes the inclined surface 40F which becomes a downward slope toward the front. Further, an inclined surface 40G having a downward slope toward the front is formed between the front intermediate portion 40C and the front end portion 40D on the latch cam surface 40, and the front side of the front end portion 40D is lifted forward. It becomes the inclined surface 40H used as the gradient.

  The unlocking cam surface 46 of the unlocking portion 26C is an inclined surface in which the front portion 46A in the front-rear direction has an upward slope toward the rear, and the height from the lower surface of the unlocking portion 26C is behind the front portion 46A. A top portion 46B having the highest height is formed. Further, the unlocking cam surface 46 is an inclined surface in which the rear portion 46C in the front-rear direction is inclined downward toward the rear. The unlocking cam surface 46 is provided at a position where the lower end of the stopper 50 </ b> B of the latch 50 contacts with the latch 50 locked by the locking device 54.

  As shown in FIGS. 7 and 10, a striker 70 as an engaging portion made of a rectangular main body is provided at the lower portion of the rear end of the inner drawer 16 in the front-rear direction. As shown in FIG. 8, the striker 70 is fastened and fixed to a lower portion of a substantially L-shaped bracket 74 by a bolt 76 and a nut 78 in a side view. The upper part of the bracket 74 is fixed to the side plate 16C of the inner drawer 16 by a fastener (not shown).

  As shown in FIG. 1A, the front surface 70A of the lower end portion of the striker 70 is an inclined surface from the front upper side to the rear lower side, and the rear surface 70B of the lower end portion of the striker 70 is rearward from the front lower side. It is an inclined surface facing upward. In addition, an engaging portion recess 72 is formed upward in the front-rear direction intermediate portion (backward) of the lower surface 70 </ b> C of the striker 70.

  The upper portion of the front wall portion of the engaging portion recess 72 is a vertical portion 72A (vertical surface) along the vertical direction, and the middle portion of the front wall portion is a horizontal portion 72B extending forward from the lower end of the vertical portion 72A. It has become. The lower part of the front wall part of the engaging part recessed part 72 is the inclined part 72C (inclined surface) which goes to the front lower side from the front end of the horizontal part 72B. Further, the rear wall portion 72D of the engaging portion recess 72 is an inclined portion (inclined surface) that extends from the front upper side to the rear lower side. In the present embodiment, the inclined portion 72C is provided from the vertical portion 72A through the horizontal portion 72B, but the inclined portion 72C may be provided continuously in front of the vertical portion 72A without providing the horizontal portion 72B. .

  Therefore, as shown in FIG. 1, when the latch device 36 provided on the back plate 14B of the main drawer 14 is in the rear end portion and the vicinity of the rear end portion of the cam member 26 (see FIG. 10), the latch 50 The upper end of the stopper 50B is in contact with the rear end portion 40A of the latch cam surface 40, and the latch 50 is pushed downward (the amount of upward protrusion is reduced). For this reason, the upper end portion 50 </ b> C of the latch 50 is an idle running section where the engagement portion recess 72 of the striker 70 is not engaged.

  As shown in FIG. 2, when the latch device 36 is moved to the rear intermediate portion in the front-rear direction of the cam member 26 by pulling out the main drawer 14 (see FIG. 11), the upper end of the stopper 50B of the latch 50 is The latch 50 is pushed upward by contacting the rear intermediate portion 40B of the cam surface 40 (the amount of upward protrusion is the largest). For this reason, the upper end portion 50 </ b> C of the latch 50 is an interlocking section that engages with the vertical portion 72 </ b> A of the front wall portion of the engaging portion recess 72 of the striker 70. In this interlocking section, since the vertical portion 72A of the front wall portion of the engaging portion recess 72 with which the upper end portion 50C of the latch 50 engages is a vertical surface, the upper end portion 50C of the latch 50 is engaged with the striker 70. It is configured not to be moved forward with respect to the partial recess 72.

  As shown in FIG. 3, when the latch device 36 moves to the front intermediate portion in the front-rear direction of the cam member 26 by pulling out the main drawer 14, the upper end of the stopper 50 </ b> B of the latch 50 is moved forward of the latch cam surface 40. Although it is in contact with the side intermediate portion 40C and the latch 50 is pushed upward, the amount of upward protrusion is small. For this reason, the upper end portion 50 </ b> C of the latch 50 is a semi-interlocking section that engages with the inclined portion 72 </ b> C of the front wall portion of the engaging portion recess 72 of the striker 70.

  When the striker 70 (inner drawer 16) is forcibly moved in the storage direction (in the direction of arrow B in FIG. 3) with respect to the latch 50 (main drawer 14), the semi-interlocking section is moved to the front wall of the engaging portion recess 72. The inclined portion 72C of the portion and the upper end portion 50C of the latch 50 slide. For this reason, when the latch 50 moves downward against the biasing force of the coil spring 52, the engagement between the latch 50 (main drawer 14) and the striker 70 (inner drawer 16) is released. Yes.

  When the striker 70 (inner drawer 16) is forcibly moved in the drawer direction (the direction of arrow A in FIG. 3) with respect to the latch 50 (main drawer 14), the rear of the engaging recess 72 in the striker 70 Since the entire wall portion 72D is an inclined surface, the rear wall portion 72D of the engaging portion recess 72 and the upper end portion 50C of the latch 50 slide, and the latch 50 resists the biasing force of the coil spring 52. By moving downward, the engagement between the latch 50 (main drawer 14) and the striker 70 (inner drawer 16) is released. The operation of forcibly moving the striker 70 (inner drawer 16) with respect to the latch 50 (main drawer 14) in the drawing direction (the direction of arrow A in FIG. 3) is performed with the rear wall portion 72D of the engaging portion recess 72. Since the rear end corner portion of the upper end portion 50C of the latch 50 slides, it is possible in the rear intermediate portion 40B in addition to the front intermediate portion 40C of the latch cam surface 40.

  As shown in FIG. 4, when the latch device 36 is moved to the front end portion of the cam member 26 by pulling out the main drawer 14, the upper end of the stopper 50B of the latch 50 comes into contact with the front end portion 40D of the latch cam surface 40. The latch 50 is pushed downward (does not protrude upward). Therefore, the upper end portion 50C of the latch 50 is retracted to a position where it does not engage with the engaging portion recess 72 of the striker 70, and the engagement between the latch 50 (main drawer 14) and the striker 70 (inner drawer 16) is released. It is like that.

  At that time, as shown in FIG. 4B, the locking portion 50E of the latch 50 moves the pressing member 56 backward against the urging force of the coil spring 58 and moves to the lower side of the protrusion 56A of the pressing member 56. It is like that. In this state, the pressing member 56 presses the latch 50 laterally (in the direction of arrow E shown in FIG. 7) by the urging force of the coil spring 58 of the locking device 54, and the locking portion 50E is locked to the protrusion 56A. Thus, the latch 50 is locked (see FIG. 5B). As a result, as shown in FIG. 12, the main drawer 14 and the inner drawer 16 are maintained in a state in which the linkage between the main drawer 14 and the inner drawer 16 is released, and the main drawer 14 and the inner drawer 16 are independently pulled out (arrow A direction) and stored ( It can be moved in the direction of arrow B).

  Further, as shown in FIG. 6, when the latch device 36 moves to the unlocking portion 26C of the cam member 26 by moving the main drawer 14 (see FIG. 12) in the storage direction (arrow B direction), the latch 50 The lower end of the stopper 50B slides on the front part 46A and the top part 46B of the unlocking cam surface 46, and the latch 50 is pushed upward. At that time, as shown in FIG. 6B, the locking portion 50E of the latch 50 moves the pressing member 56 backward against the urging force of the coil spring 58 and moves to the upper side of the protrusion 56A of the pressing member 56. It is like that. As a result, the locking between the locking portion 50E and the protrusion 56A is released, and the lock of the latch 50 by the locking device 54 is released.

(Action / Effect)
Next, the operation and effect of the drawer interlocking device according to an embodiment of the present invention will be described.

  As shown in FIG. 10, when the main drawer 14 and the inner drawer 16 are completely housed inside the cabinet body 12, the back plate of the inner drawer 16 with respect to the back plate 14 </ b> B of the main drawer 14. 16B is at a position spaced forward, and the front plate 16A of the inner drawer 16 is spaced rearward from the end plate 14A of the main drawer 14.

  When the main drawer 14 is pulled out from this stored state, the main drawer 14 starts to move in the drawing direction (in the direction of arrow A in FIG. 10) by the rail member 21 and the slide member 20, and is provided on the back plate 14B of the main drawer 14. The latch device 36 thus moved moves from the rear end portion of the cam member 26 to the vicinity of the rear end portion.

  At this time, as shown in FIG. 1, in the latch device 36, the upper end of the stopper 50B is in contact with the rear end portion 40A of the latch cam surface 40, and the latch 50 is pushed downward (projecting upward). The amount is low). For this reason, the upper end portion 50C of the latch 50 is an idle running section in which the engaging portion recess 72 of the striker 70 is not engaged, and the main drawer 14 moves, but the inner drawer 16 does not move.

  As a result, it is possible to reduce the pulling force when the main drawer 14 starts to be pulled out. For this reason, even when the main drawer 14 is provided with a closer, the pull-out force when the main drawer 14 starts to be pulled out can be reduced, and the operability is improved.

  When the main drawer 14 is pulled out, the upper end portion 50C of the latch 50 comes into contact with the rear surface 70B of the striker 70 and is pushed downward, and the upper end portion 50C of the latch 50 comes into contact with the lower surface 70C of the striker 70. Does not move in the withdrawal direction.

  Next, as shown in FIGS. 2 and 11, when the main drawer 14 is further pulled out in the direction of arrow A and the latch device 36 reaches the rear middle portion in the front-rear direction of the cam member 26, the upper end of the stopper 50 </ b> B of the latch 50 is reached. However, it abuts against the rear intermediate portion 40B of the latch cam surface 40, and the latch 50 is pushed upward (the amount of upward protrusion is maximized). For this reason, the upper end portion 50 </ b> C of the latch 50 is engaged with the vertical portion 72 </ b> A of the front wall portion of the engaging portion concave portion 72 of the striker 70 to form an interlocking section. As a result, the inner drawer 16 moves along with the main drawer 14 in the drawer direction (arrow A direction).

  In this interlocking section, since the upper end portion 50C of the latch 50 engages with the vertical portion 72A of the front wall portion of the engaging portion recess 72, the striker 70 is retracted with respect to the latch 50 (in the direction of arrow B in FIG. 2). Cannot move to. That is, the inner drawer 16 cannot be separated from the main drawer 14 in the storage direction (the direction of arrow B in FIG. 2).

  In addition, when the striker 70 (inner drawer 16) is forcibly moved in the pull-out direction (the direction of arrow A in FIG. 2) with respect to the latch 50 (main drawer 14), Since the entire wall portion 72D is an inclined surface, the rear wall portion 72D of the engaging portion recess 72 and the upper end portion 50C of the latch 50 slide. As a result, the latch 50 moves downward against the urging force of the coil spring 52, so that the engagement between the latch 50 (main drawer 14) and the striker 70 (inner drawer 16) is released. That is, the inner drawer 16 can be forcibly separated from the main drawer 14 in the drawing direction (the direction of arrow A in FIG. 2). An inclined surface is formed at the rear end portion of the upper end portion 50C of the latch 50 from the front upper side to the rear lower side so that the rear wall portion 72D of the engaging portion concave portion 72 and the inclined surface of the latch 50 are slid. It may be.

  Next, the main drawer 14 is further pulled out in the direction of arrow A, and as shown in FIG. 3, when the latch device 36 reaches the front intermediate portion in the front-rear direction of the cam member 26, the upper end of the stopper 50B of the latch 50 is latched. The latch 50 is pushed upward by coming into contact with the front intermediate portion 40C of the cam surface 40, but the upward protrusion amount is smaller than that of the interlocking section. Therefore, the upper end portion 50C of the latch 50 moves below the horizontal portion 72B of the engaging portion concave portion 72 of the striker 70, and the upper end portion 50C of the latch 50 is engaged with the inclined portion 72C of the front wall portion of the engaging portion concave portion 72. It becomes a semi-interlocking section. As a result, the inner drawer 16 moves together with the main drawer 14.

  Further, in this semi-interlocking section, when the striker 70 (inner drawer 16) is forcibly moved in the storage direction (in the direction of arrow B in FIG. 3) with respect to the latch 50 (main drawer 14), the engaging portion recess 72 is provided. The inclined portion 72C of the front wall portion and the upper end portion 50C of the latch 50 slide. As a result, the latch 50 moves downward against the urging force of the coil spring 52, so that the striker 70 and the latch 50 are disengaged.

  Therefore, if necessary, only the inner drawer 16 can be moved in the storage direction (the direction of arrow B in FIG. 3), and the opening area of the main drawer 14 can be increased.

  When the striker 70 (inner drawer 16) is forcibly moved in the drawer direction (the direction of arrow A in FIG. 3) with respect to the latch 50 (main drawer 14), the rear of the engaging recess 72 in the striker 70 The entire wall 72D is an inclined surface. For this reason, the rear wall portion 72D of the engaging portion recess 72 and the upper end portion 50C of the latch 50 slide, and the latch 50 moves downward against the urging force of the coil spring 52. 50 can be disengaged.

  Therefore, if necessary, only the inner drawer 16 can be moved in the drawer direction (the direction of arrow A in FIG. 3) to increase the opening area of the inner drawer 16.

  Next, the main drawer 14 is further pulled in the direction of arrow A, and when the latch device 36 reaches the front end of the cam member 26 as shown in FIG. 4, the upper end of the stopper 50B of the latch 50 is Abutting on the front end portion 40D, the latch 50 is pushed downward, and the upper end portion 50C of the latch 50 does not protrude upward. That is, the upper end portion 50C of the latch 50 is retracted to a position where it does not engage with the engaging portion recess 72 of the striker 70, and the engagement between the striker 70 and the latch 50 is released.

  At that time, as shown in FIG. 4B, the locking portion 50E of the latch 50 moves the pressing member 56 backward against the urging force of the coil spring 58 of the locking device 54, and below the protrusion 56A of the pressing member 56. Move to the side. Then, the pressing member 56 presses the latch 50 laterally by the urging force of the coil spring 58, and the latching portion 50E is latched by the projection 56A, thereby locking the latch 50 (FIG. 5B). reference). As a result, as shown in FIG. 12, the main drawer 14 is disengaged from the inner drawer 16, and the main drawer 14 and the inner drawer 16 are independently moved in the drawing direction (arrow A direction) and the storage direction (arrow B direction). Can be moved. For example, even if the main drawer 14 is further pulled in the direction of arrow A, the inner drawer 16 does not move.

  On the other hand, when the main drawer 14 is moved from the pulled-out state (for example, the state shown in FIG. 12) in the storing direction (arrow B direction), the latch 50 is locked by the locking device 54 (latch 50) as shown in FIG. The upper end portion 50C of the striker 70 is retracted to a position where it does not engage with the engaging portion recess 72 of the striker 70), and the main drawer 14 moves alone in the storing direction.

  When the main drawer 14 is further moved in the storage direction (arrow B direction), the latch device 36 reaches the lock release portion 26C of the cam member 26 and the lower end of the stopper 50B of the latch 50 is moved as shown in FIG. Then, the front part 46A and the top part 46B of the unlocking cam surface 46 slide, and the latch 50 is pushed upward. At that time, as shown in FIG. 6B, the locking portion 50E of the latch 50 moves the pressing member 56 backward against the urging force of the coil spring 58 and moves to the upper side of the protrusion 56A of the pressing member 56. Thus, the locked state between the protrusion 56A and the locking portion 50E is released, and the lock of the latch 50 by the lock device 54 is released. Then, due to the urging force of the coil spring 52, the upper end of the stopper 50B of the latch 50 comes into contact with the rear intermediate portion 40B of the latch cam surface 40, and the latch 50 is pushed upward (see FIG. 2).

  When the main drawer 14 is moved in the storage direction (arrow B direction), the back plate 14B of the main drawer 14 hits a drooping plate (not shown) suspended from the back plate 16B of the inner drawer 16, and the back of the main drawer 14 When pushed by the plate 14B, the inner drawer 16 also moves in the storage direction (arrow B direction). Then, the main drawer 14 and the inner drawer 16 stop at the storage position shown in FIG.

  When the main drawer 14 is moved again in the pull-out direction (in the direction of arrow A in FIG. 10) after the lock 50 is released by the lock device 54 at the lock release portion 26C, the main drawer 14 is pulled out. On the way, the upper end portion 50 </ b> C of the latch 50 is engaged with the inclined portion 72 </ b> C or the vertical portion 72 </ b> A of the engaging portion recess 72 of the striker 70. As a result, the inner drawer 16 is interlocked with the main drawer 14.

  Therefore, in this embodiment, the main drawer 14 and the inner drawer 16 can be switched between interlocking and separation by adjusting the shape (height H1 to H4) of the latch cam surface 40 of the cam member 26.

  Further, in the present embodiment, when the main drawer 14 is pulled out from the storage position, until the main drawer 14 is pulled out from the storage position by a predetermined distance, as shown in FIG. The end portion 40 </ b> A provides an idle running section in which the latch 50 does not engage with the striker 70 of the inner drawer 16. For this reason, since the inner drawer 16 does not move, the load when the main drawer 14 is pulled out from the storage position can be reduced.

  Further, in the present embodiment, when the main drawer 14 is pulled out from the storage position, if the latch device 36 is in the front intermediate portion in the front-rear direction of the cam member 26, as shown in FIG. The front intermediate portion 40C of the surface 40 provides a semi-interlocking section in which the latch 50 can forcibly disengage the inner drawer 16 from the striker 70. Therefore, in this semi-interlocking section, the engagement between the latch 50 and the striker 70 of the inner drawer 16 is forcibly released, so that only the inner drawer 16 is placed in the storage direction (arrow B in FIG. 3). Direction). As a result, usability is improved.

  Further, in this embodiment, the latch 50 engages with the vertical portion 72A of the front wall portion of the engaging portion recess 72 in the striker 70 of the inner drawer 16 only when the protrusion amount of the latch 50 is large, and the protrusion amount of the latch 50 The latch 50 engages with the inclined portion 72 </ b> C of the front wall portion of the engaging portion recess 72. For this reason, the engagement amount between the latch 50 and the striker 70 of the inner drawer 16 is forced by reducing the protrusion amount of the latch 50 and engaging the latch 50 with the inclined portion 72C of the front wall portion of the engaging portion recess 72. A semi-interlocking section that can be released automatically can be formed. As a result, it is possible to form a semi-interlocking section capable of forcibly releasing the engagement between the latch 50 and the striker 70 of the inner drawer 16 with a simple configuration.

  Further, in the present embodiment, as shown in FIG. 7, the coil spring 52 urges the latch 50 in the direction pressing the latch 50 against the latch cam surface 40 (the direction of arrow C in FIG. 7). Insufficient quantity can be prevented. As a result, the latch 50 can be reliably engaged with the striker 70 of the inner drawer 16.

  In the present embodiment, when the main drawer 14 is pulled out and the latch 50 reaches the front end portion 40D of the latch cam surface 40, the striker 70 and the latch 50 are disengaged. The latch 50 is locked by the lock device 54. Thus, the main drawer 14 and the inner drawer 16 can be separated and moved independently in a state where the main drawer 14 is pulled out to some extent. For example, even if only the main drawer 14 is further pulled out, the inner drawer 16 Will not get in the way. Further, when the main drawer 14 is moved in the storage direction, the lock release portion 26C can automatically release the lock of the latch 50 by the lock device 54. As a result, usability is improved.

(Other embodiments)
While the present invention has been described in detail with respect to specific embodiments, the present invention is not limited to the above-described embodiments, and various other embodiments are possible within the scope of the present invention. It will be apparent to those skilled in the art. For example, in the above embodiment, the drawer interlocking device of the present invention is applied to the kitchen cabinet 10 shown in FIGS. 9 and 10, but the drawer interlocking device of the present invention has a range table provided with a heating cooking unit located above the drawer. The present invention can also be applied to a system kitchen or the like installed on a covering top board. Furthermore, the present invention can be applied to drawers of cabinets used outside the kitchen.

10 Kitchen cabinet 12 Cabinet body (housing)
12B Side plate (inside surface)
14 Main drawer 16 Inner drawer 26 Cam member 26C Unlocking part 36 Latch device 40 Latch cam surface (cam part)
40D Front end (disengagement part)
46 Unlocking cam surface 50 Latch (latch means)
50E Locking part 52 Coil spring (biasing means)
54 Locking device (locking means)
56 Pressing member 56A Protrusion 58 Coil spring 70 Striker (engagement portion)
72 engaging portion recess 72A vertical portion 72B horizontal portion 72C inclined portion

Claims (8)

A drawer interlocking device attached to a main drawer arranged so as to be able to be put in and taken out from a casing, and an inner drawer provided so as to be able to be put in and out of the casing and provided inside the main drawer,
A cam portion provided on the inner side surface of the housing along the moving direction of the main drawer and the inner drawer;
Latch means provided in the main drawer, wherein the upward protrusion amount is adjusted by the cam portion in accordance with the position of the main drawer in the drawing direction;
An engaging portion that is provided in the inner drawer and engages with the latch means that protrudes upward by a predetermined amount;
Drawer interlocking device having.   2. The drawer interlocking device according to claim 1, wherein the cam portion has an engagement release portion that retracts the latch means to a position not engaged with the engagement portion at a position in an intermediate direction of the main drawer. Lock means provided on the main drawer and locking the latch means in a state where the latch means is retracted to a position where the latch means is not engaged with the engagement portion by the engagement release portion;
An unlocking portion that is provided on an inner surface of the housing, pushes up the latching means upward at an intermediate portion in the storage direction of the main drawer, and releases the lock by the locking means;
The drawer interlocking device according to claim 2, comprising:   The drawer interlocking device according to any one of claims 1 to 3, wherein the cam portion does not engage the latch means with the engaging portion until the main drawer is pulled out from the storage position by a predetermined distance.   5. The drawer interlocking device according to claim 4, wherein the cam portion engages the latch means with the engaging portion when the main drawer moves in the pulling direction by a predetermined distance or more from the storage position.   The cam portion can forcibly release the engagement between the latch means and the engagement portion when the latch means is engaged with the engagement portion and the main drawer moves in the pull-out direction for a predetermined distance or more. The drawer interlocking device according to claim 5.   The drawer interlocking device according to any one of claims 1 to 6, further comprising a biasing unit that biases the latch unit in a direction in which the latch unit is pressed against the cam portion.   The engaging portion of the inner drawer includes a vertical portion that engages when the protruding amount of the latch means is greater than a predetermined value, and an inclination that is continuous with the vertical portion or provided to the vertical portion via a horizontal portion. The drawer | linkage interlocking apparatus of any one of Claims 1-7 which have a part.

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