JP2013184036A - Opening device of drawer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that there is no opening device of drawers in which a drawer, if opened halfway, is automatically opened all the way or in which, when the drawer is opened with an excessive force, the shock is immediately absorbed, although conventionally there is a device of drawers in which a drawer, if closed halfway, is automatically closed all the way or in which, when the drawer is closed with an excessive thrust, the force is buffered, with the drawer closed slowly.SOLUTION: A rod and a runner of a damper are connected with a connecting body, so that a pair of locking pieces on standby are positioned nearly in the center of a case, and not on standby, can be positioned in the end of the case. Consequently, when a drawer is opened halfway, it can be fully opened automatically, and if it is opened with an excessive force, the force is buffered, enabling the drawer to be opened slowly.

Description

  The present invention relates to a drawer opening device (hereinafter referred to as a drawer opening device) that prevents the drawer from popping out vigorously when the drawer is opened in a furniture with a drawer (see below). Simply referred to as an opening device).

In recent furniture, a rail for furniture is attached to the sliding portion so that the drawer can be smoothly put in and out. The furniture rail is composed of a metal guide rail and a slide rail. A slide rail is accommodated in the guide rail, and a retainer in which a large number of ball bearings are arranged is installed between the guide rail and the slide rail. Therefore, the drawer slides very well when opening and closing, and when the drawer is pushed in vigorously, the drawer hits the back of the furniture strongly, and the drawer opens a little due to the reaction, damages the back, Something that was tidy in the drawer collapsed.

Conventionally, for example, Patent Document 1 proposes a drawing-in device for pulling out (hereinafter, simply referred to as a drawing-in device) that prevents the force of the drawer from being loosened and strongly hits the back when the drawer is closed.

JP 2009-39490 A

  FIG. 8 is a perspective view of the furniture in which the retracting device of Patent Document 1 is installed, and FIG. 9 is a front sectional view of the retracting device of Patent Document 1.

  The furniture main body 1 has a box shape with an entrance at the front, and includes a top 2, a bottom 3, a back 4, and side walls 5 and 5. Inside the side walls 5 and 5, guide rails 6 and 6 for furniture rails are attached.

  The drawer 7 has a box shape with no lid, and can be easily inserted from the entrance of the furniture main body 1. The drawer 7 includes a front plate 8, a back plate 9, a bottom plate 10, and a pair of side plates 11, 11. A slide rail 12, which is a furniture rail, is attached to the outside of the side plates 11, 11. The slide rail 12 is capable of sliding the guide rail 6 of the furniture main body 1 slidably. A stop mechanism is provided on the slide rail or the guide rail so that the drawer does not pop out even if the drawer is opened with force. Is installed.

  In addition, retracting devices 13 and 13 are attached to the inside of the side walls 5 and 5 of the furniture body 1. The pull-in device is used to cushion the drawer's momentum when the drawer is closed vigorously to prevent the drawer from hitting the back of the furniture body, and even if the drawer is not closed completely, Can be fully pulled into the back. When the retracting device 13 is attached to the side wall 5 of the furniture body as shown in FIG. 8, the strike 14 that engages with the retracting device is attached to the outside of the side plates 11, 11 of the drawer 7.

  As shown in FIG. 9, the retractor 13 includes a case 15, a runner 16, a tension spring 17, and a damper 18. In the case 15, guide grooves 19 are formed horizontally on both sides in the longitudinal direction, and the tip portion is bent obliquely upward. An elongated opening 20 is formed in the lower part of the case 15. The runner 16 moves along the guide groove 19, and a pair of locking pieces 21 and 22 formed on the runner 16 protrude from the opening 20 and engage with the strike 14.

When the drawer 13 is closed, as shown by the solid line in FIG. 9, the pair of locking pieces 21 and 22 completely protrude from the opening 20, and the strike is locked between the pair of locking pieces. The drawer is completely closed, that is, a non-standby state. When the drawer is opened, as shown by a two-dot chain line in FIG. 9, the retracting device waits for one of the locking pieces 21 to enter the opening 20 to release the strike, and then wait for the strike to come. It becomes a state.

Here, the operation of the retractor will be briefly described. As shown in FIG. 8, when the retractor 13 is attached to the side walls 5, 5 of the furniture body 1, the case 15 is attached so that the end portion (right end in the figure) is located near the entrance of the furniture body 1. When the drawer 7 is opened as shown in FIG. 8, the runner 16 enters a standby state located at the end of the case 15 (the right end in the drawing) as shown by the two-dotted line in FIG. At this time, one locking piece 21 is immersed in the opening 20 and only the other locking piece 22 protrudes from the opening.

When the drawer that has been opened is closed, the strike 14 attached to the side plate 11 of the drawer hits the locking piece 22 in the standby state and moves the runner 16 to the left in the figure. Projects from the opening. Then, since the strike 14 is locked to the locking piece 21 and the runner 16 is pulled by the tension spring 17, the strike 11 is further moved to the left in the drawing, that is, the drawer 7 to which the strike is attached is located at the back of the furniture 1. Will be drawn into. Therefore, after the strike is locked to the locking piece, the drawer is pulled into the interior of the furniture by the spring force without further pushing the drawer. Further, when closing the drawer, if the door is closed vigorously, the damper cushions the momentum of the drawer to prevent the drawer from hitting the furniture strongly.

By the way, in general drawers, when the drawer is closed as described above, it is said that if the drawer is closed halfway, it will be completely drawn to the back of the furniture, and even if the drawer is closed close, the momentum can be buffered. It was. However, if the drawer is opened halfway when the drawer is opened, then the drawer opens completely, and even if the drawer is opened vigorously, the drawer opening device (hereinafter simply referred to as the opening device) can buffer the momentum. Never existed until now. Applications of such an opening device include a special drawer of a system kitchen and an office desk using a personal computer.

In recent system kitchens, it has been often adopted that a large drawer is provided under a sink or a cooking table and a trash can is stored in the drawer. If the trash can stored in the drawer of the system kitchen is for garbage, the trash from the garbage in the trash can be prevented from leaking out, and insects such as flies and cockroaches should not enter the trash can. The lid is closed except when throwing away the garbage, and the lid can be opened only when throwing away the garbage.

Therefore, in a drawer containing a trash box, when the garbage stops in the middle of the trash box in the drawer, the trash box lid cannot be opened. Also, if a large amount of garbage is put in the trash bin and the trash bin is heavy, if the drawer is opened vigorously, a large impact will destroy the furniture rail stop mechanism, and the drawer and trash bin will be removed from the system kitchen. It will jump out and spread garbage on the floor.

In office desks that process slips or use personal computers, the keyboard is always on the desk, and the keyboard becomes an obstacle when writing and processing slips. Therefore, in such an office desk, a drawer for storing the keyboard is installed, and when the personal computer is not used, the drawer is closed, and when the personal computer is necessary, the drawer is opened and the keyboard is used. If the drawer with the PC is opened, it will be difficult to operate the keyboard if the drawer is not fully pulled out. If the momentum is too strong when the drawer is opened, The stored keyboard pops out of the drawer.

In this way, in the furniture industry, when a drawer containing a trash can or keyboard is opened, the drawer opens completely even if the drawer is stopped halfway, and when the drawer is opened vigorously, the momentum is buffered. The emergence of an open device that can be used has been desired.

  As described above, when the drawer is closed, the pull-in device is excellent in that even if the push-in of the drawer is stopped halfway, the drawer is completely pulled into the back of the furniture, and even if the drawer is closed firmly, the momentum is buffered. . Therefore, it is conceivable to use the pulling device as an opening device that can be opened completely even if the pulling device is opened at the time of opening the drawer, and the force can be buffered, and the pulling device can be completely opened even if the drawer is opened only halfway.

  By the way, the opening device is in a non-standby state when the drawer is completely opened, that is, the pair of locking pieces of the runner protrudes from the opening of the case and is locked with the strike. Must be located at the end of the case as opposed to the retractor. However, the pull-in device has a structure in which the pair of locking pieces can be positioned only at substantially the center of the case in a non-standby state.

In the opening device, the pair of locking pieces protruding from the case are positioned at the end of the case during standby, i.e., when the drawer is completely opened and the pair of locking pieces protruding from the case and the strike are locked. Otherwise, the function as an opening device cannot be achieved. However, since the damper is installed on one side of the case (left side in FIG. 9) and the runner is directly attached to the rod of the damper, the runner inevitably extends the rod in the non-standby state, that is, the case. It can only be located in the middle. Therefore, no matter how the attachment position of the retracting device is changed, the retracting device cannot be used as an opening device. Therefore, the present inventor has made use of the excellent features of the damper buffering action in the pull-in device and the complete movement action of the pull-out by the tension spring so that the position of the runner in the standby state can be the end of the case. The present invention was completed by paying attention to the possibility of an opening device that could not be considered at all.

The present invention
A case in which a cylinder storage portion is formed on one side in the longitudinal direction, a spring locking portion is formed on one end, and main guide grooves are formed on both side walls in the vicinity of the cylinder storage portion;
A damper in which the cylinder is housed in the cylinder housing of the case and the rod extends in the other direction of the case;
A connected body having one end rotatably attached to the tip of the damper rod and the other end extended to near one end of the case;
A tension spring locked to the tip of the damper rod and the spring locking portion of the case;
A first locking piece and a second locking piece are formed opposite to each other and pivotally attached to the other end of the coupling body, and a first guide pin protrudes on both sides in the vicinity of the first locking piece. A second guide pin protrudes on both sides in the vicinity of the second locking piece, and these guide pins move in the main guide groove of the case;
A drawer opening device characterized by comprising:

Invention effect

  The opening device of the present invention has a completely new effect in the industry that the drawer never pops out because the drawer is surely fully opened when the drawer is opened halfway and the momentum is buffered when the drawer is opened. is there.

Exploded perspective view of the opening device of the present invention Central sectional view explaining a standby state in the opening device of the present invention Central sectional view explaining the non-standby state in the opening device of the present invention Front view explaining the standby state when the opening device of the present invention is attached to the side wall of furniture and the strike is attached to the side plate of the drawer (the side plate of the drawer is transparent) Front view explaining the non-standby state when the opening device of the present invention is attached to the side wall of the furniture and the strike is attached to the side plate of the drawer (the side plate of the drawer is seen through) Plan view of FIG. Side view of FIG. Perspective view of furniture fitted with a drawer retractor Front sectional view of the pull-in device

The opening device of the present invention will be described below with reference to the drawings. Since the development device of the present invention is attached to the side wall of the furniture body as shown in FIGS. 4 to 7 or attached to the drawer side plate (not shown), the positional relationship between the upper, lower, left and right sides is lost depending on the attachment state. However, the opening device will be described using upper, lower, left, and right words as seen in the drawings for convenience of understanding.

The opening device K of the present invention includes a case 30, a damper 40, a connecting body 50, a tension spring 60, and a runner 70, and is actually attached to furniture or a drawer together with the strike S.

  The case 30 has a horizontally long rectangular shape, and one side (right side in the figure) is a hollow cylinder housing portion 31, and a groove-like spring is housed in the upper portion of the cylinder housing portion 31 along the longitudinal direction. A groove 32 is formed. A spring locking portion 33 is formed at one end (right end in the figure) of the spring housing groove. Main guide grooves 34 are formed on both side walls of the case in the vicinity of the cylinder storage portion 31 (lower portion of the storage portion in the figure). The main guide groove 34 is in a straight line shape parallel to the cylinder housing portion 31, and one end (left end in the figure) is bent upward. A lower portion is an opening 35 between both side walls where the main guide groove 34 is formed. Sub-guide grooves 36 having substantially the same shape as the main guide grooves 34 are also formed on both side walls on the other side (left side in the drawing) of the case 30. Further, a straight guide groove 37 is formed between the cylinder housing portion 31 and the main guide groove 34 on both side walls of the case. Furthermore, the lower part of the other side (left side in the drawing) of the case 30 is a sliding surface 38 with the left end portion facing upward. A portion obtained by extending the spring housing groove 32 is a space 39 that reaches the sub guide groove 36.

The damper 40 includes a cylindrical cylinder 41, a rod 42, and a mounting piece 43, and cushions the momentum when the rod is pushed into the cylinder. The cylinder 41 is accommodated in the cylinder accommodating portion 31 of the case 30, and the rod 42 extends in the space 9 of the case 30 toward the other side (left side in the drawing). An attachment piece 43 whose end is cylindrical is attached to the tip of the rod 42.

The connecting body 50 connects a rod tip and a runner described later. In the embodiment, the connecting body 50 and the rod 42 are connected via an adapter 53. And the connection part 50 is extended to the near side of the case 30 (right side in the figure) the end part connected with the runner 70. The connection body shown in the embodiment is L-shaped consisting of a short leg 51 and a long leg 52. The short leg 51 is pivotally attached to the rod 42 via an adapter 53, and the long leg 52 is extended at an end portion near one side (right side in the figure) of the case. The adapter 53 connected to the short leg 51 has a substantially triangular shape, a spring locking portion 54 is formed at the top, and the auxiliary first guide pin 55 and the auxiliary second guide pin 56 are provided on both sides of the bottom side. Protruding. The auxiliary first guide pin 55 and the auxiliary second guide pin 56 move in the auxiliary guide groove 36 formed in the case 30.

  The auxiliary first guide pin 55 serves as a shaft, and the connection between the coupling body 50 and the adapter 53 is rotatable. A rod engaging portion 57 is formed at a substantially central position between the spring locking portion 54 of the adapter 53 and the sub second guide pin 56, and is a hollow having substantially the same diameter as the cylindrical shape at the tip of the mounting piece 43. Yes. An attachment piece 43 is rotatably attached to the rod engaging portion 57. In addition, sliding pins 58 protrude from both sides of the bent portion of the connecting body 50. The sliding pin moves along the sliding surface 38 of the case 30.

A tension spring 60 is locked in a tensioned state between a spring locking portion 33 formed at the end of the case 30 and a spring locking portion 54 of an adapter 53 attached to the tip of the rod 42. Therefore, the rod 42 of the damper 40 is always spring-biased in the direction of being pulled into the cylinder 41 by the tension spring 60, and this spring bias is transmitted to the runner 70 via the adapter 53 and the connecting body 50. It has become.

  The runner 70 is formed with a pair of locking pieces of a first locking piece 71 and a second locking piece 72, a first guide pin 73 in the vicinity of the first locking piece 71, and a second In the vicinity of the locking piece 72, a second guide pin 74 protrudes on both sides. The first guide pin 73 and the second guide pin 74 move in the main guide groove 34 of the case 30. The runner 70 is rotatably connected to the connecting body 50 with the first guide pin 73 as an axis. A third guide pin 75 is formed on the upper portion of the runner 70, and the third guide pin moves in the linear guide groove 37 of the case 30.

  Symbol S is a strike. The strike S is provided with a pair of first locking plates 81 and 82 facing each other on the front side of a rectangular plate, and two alignment projections 83 are formed on the back side thereof. Yes.

Next, the operation of the opening device of the present invention having the above structure will be described.

As shown in FIGS. 4 to 7, the opening device K is attached near the entrance of the side wall 5 of the furniture body so that the runner 70 is on the right side in the figure, and the strike S is attached to the innermost side of the side plate 11 of the drawer 7. At this time, the opening device K is attached near the entrance of the side wall 5 of the furniture body so that the non-standby runner 70 is on one side (right side in the figure). The strike S is attached to the lowermost part (left in the figure) of the side plate 7 of the drawer 7. At this time, the opening device K and the strike S are positioned so that the pair of locking pieces 71 and 72 of the opening device hit the pair of locking plates 81 and 82 of the strike S.

  Here, the operating state of the opening device of the present invention will be described.

When the drawer is closed, as shown in FIGS. 2 and 4, the runner 70 is in a standby state located slightly in the middle of the case 30. At this time, the rod 42 of the damper 40 extends to the longest, and the adapter 53 at the tip of the rod and the tension spring 60 locked to the spring locking portion 33 of the case 30 have the longest and strongest tensile force. . In the adapter 53 attached to the attachment piece 43 at the tip of the rod, the auxiliary first guide pin 55 is positioned at the upper end of the other side bent portion of the auxiliary guide groove 36, and the auxiliary second guide pin 56 is a straight line of the auxiliary guide groove 36. Located in the department. Accordingly, the adapter 53 is locked on the other side of the case (left side in the figure) because the sub first guide pin 55 is hooked on the bent portion of the sub guide groove 36.

In the runner 70, the first guide pin 73 is located at the upper end of the bent portion on the other side (left side) of the main guide groove 34, and the second guide pin 74 is located at the straight portion of the main guide groove 34. Therefore, the runner 70 is locked on the other side of the case (left side in the figure) because the first guide pin 73 is hooked on the bent portion of the main guide groove 37. At this time, the first locking piece 71 of the runner 70 is almost immersed in the opening 35 of the case 30 because the runner is inclined, and only the second locking piece 72 protrudes.

  Thus, since the adapter 53 and the runner 70 are locked by the sub guide groove 36 and the main guide groove 34, the lock is not easily released. Further, since the third system stop piece 75 of the runner 70 is in the linear guide groove 37, the movement of the runner 70 is stabilized. Furthermore, since the sliding pin 58 of the connection body 50 moves along the sliding surface 38 of the case 30, the movement of the runner 70 is ensured.

  When the closed drawer is opened, the strike S attached to the other end (left end in the figure) of the drawer side plate 11 moves in one direction (right side in the figure), and the second locking plate 82 of the strike S is obtained. Hits the second locking piece 72 protruding from the opening 35, and the first guide pin 73 of the runner that was at the upper end of the bent portion of the main guide groove 34 in the standby state is returned to the straight portion of the main guide groove 34. The runner which has been released and has been inclined protrudes from the opening 35 with the inclination being corrected. Then, the lock of the adapter 53 connected to the connecting body 50 is also released.

  The second locking plate 82 and the first locking plate 81 of the strike S are sandwiched between the first locking piece 71 and the second locking piece 72 of the runner. Thereafter, the adapter 53 is pulled by the tension spring 60 and moves to one side (right side in the figure), and the connector 50 also moves along with the movement. Then, since the runner 70 connected to the coupling body 50 also moves, it moves in the direction (right side in the drawing) in which the drawer to which the strike S is attached opens.

Even if the drawer is opened halfway, the runner 70 is connected to the rod 42 via the connecting body 50, the adapter 53, the mounting piece 43, etc., and the rod 42 is connected to one side by the tension spring 60 (right side in the figure). ), The drawer is fully opened. In addition, when the drawer is opened vigorously, the momentary force is transmitted from the strike S to the rod 42 of the damper 40 through the runner 70, the connecting body 50, the adapter 53, and the mounting piece 43. It opens slowly.

Industrial application fields

The present invention is applicable not only to drawers for storing trash boxes and drawers for storing keyboards in a system kitchen, but also to drawers such as desks, cabinets and organized dances.
In addition, in the Example, although the L-shaped thing was shown as a connection body which connects a rod and a runner of a damper, what kind of thing will do if it can connect a rod and a runner and can tell a rod's power to a runner? It goes without saying that even shapes and structures can be used.

K Drawer opening device S Strike 30 Case 31 Cylinder storage portion 32 Spring storage groove 33 Spring locking portion 34 Main guide groove 35 Opening 36 Sub guide groove 37 Linear guide groove 38 Sliding surface 39 Space portion 40 Damper 41 Cylinder 42 Rod 43 Attachment piece 50 Connecting body 51 Short leg 52 Long leg 53 Adapter 54 Spring locking portion 55 Sub first guide pin 56 Sub second guide pin 57 Rod engaging portion 58 Slide pin 60 Tension spring 70 Runner 71 First locking piece 72 Second locking piece 73 First guide pin 74 Second guide pin 75 Third guide pin

Claims (2)

A case in which a cylinder storage portion is formed on one side in the longitudinal direction, a spring locking portion is formed on one end, and main guide grooves are formed on both side walls in the vicinity of the cylinder storage portion;
A damper in which the cylinder is housed in the cylinder housing of the case and the rod extends in the other direction of the case;
A connected body having one end rotatably attached to the tip of the damper rod and the other end extended to near one end of the case;
A tension spring locked to the tip of the damper rod and the spring locking portion of the case;
A first locking piece and a second locking piece are formed opposite to each other and pivotally attached to the other end of the coupling body, and a first guide pin protrudes on both sides in the vicinity of the first locking piece. A second guide pin protrudes on both sides in the vicinity of the second locking piece, and these guide pins move in the main guide groove of the case;
A drawer opening device characterized by comprising: The drawer opening device according to claim 1, wherein the rod tip and the connecting body are attached via an adapter.

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