JP2015208591A - Slide rail and cabinet with drawer having the slide rail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide slide rails capable of pulling out a self-closing drawer with force smaller than that in a conventional manner, and also to provide a cabinet with a drawer having the slide rails.SOLUTION: Each slide rail includes: a fixing rail 31 to be attached to a cabinet 10; a movable rail 32 to be attached to a drawer 20; a pull-in device 33 having a spiral spring 332; and a damper 34 for damping the pull-in operation of the drawer 20. The pull-in device 33 stores energy in the spiral spring 332 with the movement of the movable rail 32 by pulling the drawer 20 out of the cabinet 10. When the drawer 20 is pulled in to the cabinet 10, the drawer 20 is pulled-in by the return force of the spiral spring 332 by the stored energy.

Description

  The present invention relates to a slide rail for drawer and a cabinet with a drawer provided with the slide rail.

  Patent Document 1 is a device for closing and retracting a movable part of furniture, and in order to make the closing operation process soft and prolong its life without causing noise when closing, a closing operation damper is disclosed. In combination with the device, the damper device is formed by a fluid damper. The fluid damper is either a rotary damper or a linear damper, and the device for closing and / or retracting is combined with the closing damper device to be very compact.

  The movable rail includes a spring that pulls the drawer into the cabinet so that the drawer is slowly and surely closed, and a damper device that cushions the operation of pulling the drawer. Thereby, even if the hand is released while the drawer is self-closing by the spring, it can be surely and slowly closed gently.

JP 2001-245738 A

  However, this device is configured to retract the drawer with a coil spring. Therefore, as the drawer is pulled out, the spring force of the coil spring is proportionally increased, so that there is a problem that the weight is felt when the drawer is pulled out.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a slide rail capable of pulling out a self-closing drawer with a smaller force than before and a cabinet with a drawer provided with the slide rail.

  The present invention is a slide rail formed to solve the above-described problems, and a fixed rail attached to a cabinet, a movable rail attached to a drawer, a pull-in device having a spring, and a buffering operation for pulling out the drawer. The pull-in device stores energy in the spring as the movable rail moves by pulling the drawer out of the cabinet, and pulls the drawer into the cabinet. The drawer is retracted by a force by which the spring spring returns to the original state by the stored energy.

  According to this slide rail, it is possible to pull out the drawer with a lighter force than before by using the spring spring. Of course, when the drawer is closed, it can be closed securely and slowly.

  Further, in this slide rail, it is preferable that the retracting device is disposed at a position deviated from a moving track in which the movable rail slides along the fixed rail.

  According to this, it is possible to make the spring spring out of the movable rail.

  Further, in this slide rail, the fixed rail has a vertical wall portion along a side plate of the cabinet, and a lower wall portion that supports the movable rail below the vertical wall portion, and the vertical wall portion, It is preferable to attach the said drawing-in apparatus to a fixed rail so that it may become parallel.

  According to this, since the flat mainspring is in a posture along the side plate of the cabinet, the mainspring does not narrow the storage space.

  Further, in this slide rail, a penetrating portion that penetrates the lower wall portion of the fixed rail vertically is provided, and the retracting device is disposed below the fixed rail so that the rotating shaft of the spring spring is positioned below the penetrating portion. It is also preferable to provide it.

  According to this, since the retracting device can be housed in the kicking portion of the cabinet, even when the drawer is removed from the movable rail, the retracting device is hardly exposed. Therefore, it becomes difficult to tamper with the retracting device.

  Moreover, in this slide rail, it is preferable to attach the said drawing-in apparatus to the surface at the side plate side of the cabinet of the vertical wall part of the said fixed rail.

  According to this, since the retracting device can be stored in the side plate of the cabinet, the retracting device is not exposed even when the drawer is detached from the movable rail. Therefore, it becomes difficult to tamper with the retracting device.

  Moreover, in this slide rail, it is preferable to attach the said drawing-in apparatus to the upper end part of the vertical wall part of the said fixed rail.

  According to this, since a drawing-in apparatus can be used even if it does not give a special process to a cabinet, manufacturing cost can be held down.

  In this slide rail, it is preferable that the retracting device is attached to a rear end portion of the fixed rail.

  According to this, since a drawing-in apparatus can be used even if it does not give a special process to a cabinet, manufacturing cost can be held down.

  In order to solve the above-described problem, the drawer-equipped cabinet includes any one of the slide rails described above, the fixed rail is attached to a side plate of the cabinet, and the movable rail is attached to the drawer. Features.

  According to this drawer-equipped cabinet, a spring spring is used as means for urging the drawer in the closing direction (withdrawing direction) in order to self-close the drawer. The spring spring has a smaller degree of change of the spring force with respect to the amount of pull-out, and the spring force changes more slowly than the conventionally used coil spring. When trying to pull out the drawer, the spring spring pulls out the drawer against the force trying to close the drawer, but the spring spring changes the spring force more slowly than the coil spring, so pull out the drawer with less force than before It becomes possible. Of course, when closing the drawer, the mainspring can be used to securely and quietly close the drawer.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the drawer rail provided with the slide rail which can draw out the drawer which self-closes with a force smaller than before, and the slide rail.

It is a perspective view showing the cabinet with a drawer. It is a perspective view showing the state which attached the slide rail concerning embodiment of this invention to the cabinet. It is the perspective view which looked at the slide rail represented to FIG. 2 from back. It is the side view which looked at the slide rail represented to FIG. 2 from the side surface. It is the perspective view which looked at the slide rail from back with the drawer closed in the cabinet. It is a schematic diagram showing the inside of a drawing-in apparatus. It is a figure showing operation | movement of the drawing-in apparatus when pulling out a drawer | drawer. It is a figure showing the relationship between the quantity which pulls out drawer | drawer, and a spring force. It is a figure showing the 1st specific example which attached the drawing-in apparatus to the slide rail. It is a figure showing the 2nd specific example which attached the drawing-in apparatus to the slide rail. It is a figure showing the 3rd example which attached the drawing-in apparatus to the slide rail. It is a figure showing the 4th example which attached the drawing-in apparatus to the slide rail.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing a cabinet with drawers.
The cabinet 10 includes a drawer 20 that can be freely inserted and removed from the front opening, and a slide rail 30 that slides the drawer 20 back and forth.

  2 is a perspective view showing a state in which the slide rail is attached to the cabinet, FIG. 3 is a perspective view of the slide rail as viewed from the rear, FIG. 4 is a side view of the slide rail as viewed from the side, and FIG. Fig. 6 is a perspective view of the slide rail as viewed from the rear with the drawer closed, and Fig. 6 is a schematic view showing the inside of the drawing device.

  The slide rail 30 includes a fixed rail 31, a movable rail 32 that slides relative to the fixed rail 31, and a retracting device 33 that is attached to the fixed rail 31.

  The fixed rail 31 is attached to the side plate 11 of the cabinet 10. On the other hand, the movable rail 32 is attached to the side plate 21 of the drawer 20 or is integrated with the side plate 21 of the drawer 20.

  In the retracting device 33, the mainspring spring 332 is accommodated in a cylindrical case 331, and a rotating shaft 333 that holds the center of the mainspring spring 332 is exposed to the outside from the case 331. The retracting device 33 has the rotating shaft 333 attached to the fixed rail 31 so as not to rotate. More specifically, the rotating shaft 333 is attached to the auxiliary plate 311 attached to the fixed rail 31. The end of the string 334 is fixed to the cylindrical surface 331a of the case 331 and wound around it. When the cord 334 is pulled, the case 331 rotates and the spring spring 332 in the inside contracts to store energy. When the cord 334 is released in a state where the energy is stored, the stored energy is released and the spring spring 332 returns to its original shape. Return.

Next, the relationship between the drawer 20 and the retracting device 33 will be described.
FIG. 7 is a diagram illustrating the operation of the pull-in device when the drawer is pulled, and FIG. 8 is a diagram illustrating the relationship between the amount of pull-out and the spring force.

  The cabinet 10 is provided with a connector 40 that can move back and forth. The connector 40 is movable back and forth along a guide path 111 formed on the side plate 11 of the cabinet 10. Further, a tip of a string 334 is attached to the connector 40.

  The movable rail 32 is provided with an engaging portion 321 that engages with the connector 40 in order to slide the connector 40 in the same direction as the movable rail 32 slides with respect to the fixed rail 31.

  In addition, the front end of the guide path 111 is formed with a flange 112 that can be engaged with the connector 40 by bending the guide path 111 in a direction away from the engaging portion 321.

  When the drawer 20 is pulled forward and the movable rail 32 is slid forward, the connector 40 engaged with the engaging portion 321 moves forward along the guide path 111 while pulling the string 334 ((( Change from a) to (b)). When the connector 40 reaches the front end of the guide path 111, the connector 40 moves away from the engaging portion 321 along the bent shape of the flange portion 112, and the engagement with the engaging portion 321 is released. Locks to the flange 112 (change from (b) to (c) in FIG. 7). From this state, the drawer 20 can be pulled further forward. However, since the engagement with the connector 40 is released, the drawer 20 is not pulled back by the energy stored in the mainspring spring 332. Further, since the connector 40 is locked to the flange portion 112, the energy of the mainspring spring 332 remains stored.

  On the other hand, when the drawer 20 is pulled into the cabinet 10, when the drawer 20 is pushed rearward and the movable rail 32 is slid rearward, the engaging portion 321 comes into contact with the connector 40 locked to the flange portion 112. The connector 40 and the engaging portion 321 are engaged again. Then, the connector 40 moves from the collar part 112 and tries to restore the mainspring spring 332 to its original shape by releasing the energy stored in the mainspring spring 332. As a result, the string 334 is rewound around the case 331 by the force of the mainspring 332, and the connector 40 moves rearward along the guide path 111. That is, the drawer 20 moves rearward by the force of the mainspring spring 332 without being pushed backward.

  The slide rail 30 includes a damper 34 for buffering. Therefore, the drawer 20 that is urged and moved backward by the force of the mainspring spring 332 does not collide with the cabinet 10 vigorously, and the drawer 20 is slowly and gently drawn.

  By the way, as described above, the conventional drawer uses a coil spring to draw the drawer. Therefore, as the drawer is pulled out, the spring force (tensile force) of the coil spring increases proportionally (see FIG. 8E), and a large force is required to pull out the drawer.

  On the other hand, according to the slide rail 30 of the present embodiment, the drawer 20 is pulled in using the mainspring spring 332. The spring spring 332 increases gradually with respect to the amount of the spring. That is, the spring force of the mainspring 332 does not increase proportionally (see FIG. 8D). Therefore, it becomes possible to pull out the drawer 20 with a lighter force (small force) than before.

  Further, with the coil spring and the spring spring 332, the spring force when the drawer 20 is pulled out by the same amount is smaller in the spring spring 332. Therefore, the change in the force that pulls the drawer 20 forward before and after the engagement between the connector 40 and the engaging portion 321 is released is also reduced. Therefore, the uncomfortable feeling can be reduced without greatly changing the force of pulling out the drawer 20.

Next, the position where the retracting device 33 is attached to the slide rail 30 will be described with a specific example.
9 is a diagram showing a first specific example in which the retracting device is attached to the slide rail, FIG. 10 is a diagram showing a second specific example in which the retracting device is attached to the slide rail, and FIG. 11 is a diagram showing the retracting device in the slide rail. FIG. 12 is a diagram showing a third specific example attached, and FIG. 12 is a diagram showing a fourth specific example in which the retracting device is attached to the slide rail.

As shown in FIGS. 9 to 12, the retracting device 33 is disposed at a position deviated from the moving track in which the movable rail 32 slides along the fixed rail 31.
As a result, the retracting device can be sized to protrude from the movable rail.

The fixed rail 31 has a vertical wall portion 312 along the side plate 11 of the cabinet 10 and a lower wall portion 313 that supports the movable rail 32 below the vertical wall portion 312, and is parallel to the vertical wall portion 312. As shown, the retracting device 33 is attached to the fixed rail 31 (see FIGS. 2, 4 and 5).
As a result, the flat retractor 33 incorporating the mainspring 332 is in a posture along the side plate 11 of the cabinet 10, so that the retractor 33 does not narrow the storage space.

The first specific example showing the attachment position of the retracting device 33 is equivalent to the example shown in the above-described embodiment. As shown in FIG. 9, a penetrating portion 313 a that penetrates the lower wall portion 313 of the fixed rail 31 vertically is provided, and the retracting device 33 is placed below the fixed rail 31 so that the rotating shaft 333 is positioned below the penetrating portion 313 a. It is arranged.
According to this, since the mainspring 332 can be stored in the space behind the kicked portion of the cabinet 10, even when the drawer 20 is removed from the movable rail 32, the mainspring 332 is hardly exposed. It becomes difficult.

In the second specific example, as shown in FIG. 10, the retracting device 33 is attached to the surface of the vertical wall portion 312 of the fixed rail 31 on the side plate 11 side of the cabinet 10. Although not shown, the side plate 11 has a recess that can accommodate the retracting device 33.
According to this, since the spring spring 332 can be housed in the side plate 11 of the cabinet 10, the spring spring 332 is not exposed even when the drawer 20 is detached from the movable rail 32, so that the spring spring 332 is not easily tampered with.
In this specific example, the string 334 is guided from the side plate 11 side of the cabinet 10 of the fixed rail 31 to the storage space side through the through portion 313 a of the fixed rail 31.

In the third specific example, as shown in FIG. 11, the retracting device 33 is attached to the upper end portion of the vertical wall portion 313 of the fixed rail 31.
According to this, since the mainspring 332 can be used even if the cabinet 10 is not specially processed, the manufacturing cost can be suppressed.

In the fourth specific example, as shown in FIG. 12, a retracting device 33 is attached to the rear end portion of the fixed rail 31.
According to this, since the mainspring spring 332 can be used without special processing on the cabinet 10 as in the third specific example, the manufacturing cost can be suppressed.

  The embodiment of the present invention has been described above. However, the present invention is not limited to these descriptions. As long as the features of the present invention are provided, those skilled in the art appropriately modified the design of the above-described embodiments are also included in the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Cabinet 11 Side plate 20 of drawer | drawer 30 Slide rail 31 Fixed rail 312 Vertical wall part 313 Lower wall part 313a Through part 32 Movable rail 33 Pull-in apparatus 331 Case 332 Spring spring 333 Rotating shaft 34 Damper

Claims (8)

A fixed rail attached to the cabinet, a movable rail attached to the drawer, a retracting device having a spring, and a damper for buffering the operation of retracting the drawer,
The pull-in device stores energy in the main spring as the movable rail moves by pulling out the drawer from the cabinet, and when pulling the drawer into the cabinet, A slide rail characterized in that the drawer is pulled in by a force by which the spring spring returns.   2. The slide rail according to claim 1, wherein the retracting device is disposed at a position deviated from a moving track in which the movable rail slides along the fixed rail. The fixed rail has a vertical wall portion along a side plate of the cabinet, and a lower wall portion that supports the movable rail below the vertical wall portion,
The slide rail according to claim 2, wherein the pull-in device is attached to a fixed rail so as to be parallel to the vertical wall portion. Providing a penetrating portion that vertically penetrates the lower wall portion of the fixed rail;
The slide rail according to claim 3, wherein the retracting device is disposed below the fixed rail so that a rotating shaft of a spring spring is positioned below the penetrating portion.   The slide rail according to claim 3, wherein the pull-in device is attached to a surface of the vertical wall portion of the fixed rail on the side plate side of the cabinet.   The slide rail according to claim 3, wherein the retracting device is attached to an upper end portion of a vertical wall portion of the fixed rail.   The slide rail according to claim 3, wherein the retracting device is attached to a rear end portion of the fixed rail. A cabinet with a drawer comprising the slide rail according to any one of claims 1 to 7,
A cabinet with a drawer, wherein the fixed rail is attached to a side plate of the cabinet, and the movable rail is attached to the drawer.

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