JPS60215319A - Drawer opening, closing and holding apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an opening/closing holding device for a drawer such as a desk or a cupboard.

Traditionally, drawers for desks and cupboards of this type were constructed so that when opening and closing, you pushed the handle or its tip to close it, and then held the handle and pulled it toward you to open it. requirements, and there were design constraints from this aspect.

Also, if you don't lock a conventional drawer, it will pop out when you tilt a desk or cupboard, and if you use a drawer that doesn't have a lock for convenience or you lose the key. 1. If the desk is moved, the contents may spill out.This problem has become more common in high-rise buildings in recent years, and in the event of an earthquake, desks, etc., may not be placed in rooms on the second floor or higher. There is a danger in terms of safety if they are left in place.

The object of this invention is to be able to lock and hold the drawer in a closed state;
It is an object of the present invention to provide a drawer opening/closing holding device capable of opening and closing the drawer even without a handle.

The present invention will be described in detail below based on an embodiment shown in the drawings. In FIGS. 1 to 7, 1 is, for example, an office desk, and 2 is a drawer thereof. A slide rail 3 is attached to one side of the drawer 2, and this slide rail 3 has a guide rail 4 fixed to the desk l side, and a roller 5 and a guide rail 4 attached to the slide rail 3 side. It is attached so as to slide smoothly via rollers 6 attached to the side.

Next, to explain the bush latch device A, bearing plates 4a and 4b are erected at the lower part of the rear end of the guide rail 4.
An operating rod 7 is slidably supported between the bearing plates 4a and 4b while being biased in one direction by a compression coil spring 8, and a locking plate 9 is supported alongside the operating rod 7 by a support pin 1o. It is pivotally supported so as to be able to turn, and is urged to turn in one direction by a torsion coil spring 11. A locking pin 12 and a pressing plate 13 are respectively provided upright at the rear end of the slide rail 3.

Note that this bush latch device A may be provided only on one side of the drawer 2, but it may also be provided on both sides.

Therefore, when the drawer 2 is pressed in the closing direction and closed and then released, the guide rail 4 and the drawer are smoothly retreated by the rollers 5.6, and the push plate 13 provided at the rear end
This causes the operating rod 7 to retreat against the elasticity of the compression coil spring 8. At the same time, the locking pin 12 pushes the inclined guide end surface 8a provided at the tip of the locking plate 9, torsionally rotates it against the elasticity of the coil spring 11, and then enters the zigzag groove 14 provided on the surface. , due to the elasticity given to the operating rod 7, the locking portion 14 returns slightly to the front side.
Lock a.

Therefore, the drawer 2 is held and locked in this position, and will not open outward even if it is pulled toward the user or the desk 1 is tilted toward the user.

(2) The zigzag groove 14 of the locking plate 9 in which the operating rod 7 is moved back together with the drawer 2 against the elasticity of the compression coil spring 8, and at the same time the locking pin 12 is twisted and slightly rotated by the elasticity of the coil spring 11. However, since the raised part 14c is provided at the position where the locking pin 12 is locked, the locking pin 12 is not locked at this position. The elasticity of the compression coil spring 8 pushes the drawer 2 forward through the operating rod 7.
is automatically pushed open slightly via the pressing plate 13 and the slide rail 3, and then the drawer 2 can be fully opened by placing a hand on the edge of the drawer 2. At the same time, both the operating rod 7 and the locking plate 9 return to their original positions due to the elasticity of the compression coil spring 8 and the torsion coil spring 11, respectively.

In this way, the drawer 2 can be locked and held in the closed state simply by pressing it in the closing direction, and can be automatically opened by simply pressing it again without providing a handle on the drawer 2.

In particular, as shown in FIGS. 4 and 5, if the slide rail 3 and the guide rail 4 are provided with curved portions 3a and 4C, respectively, to surround the peripheral edge of each roller 5.6, the drawer There is an advantage that the wobbling of the locking plate 2 from side to side is eliminated, and the engagement/disengagement function between the locking plate 9 and the locking pin 12 becomes more reliable.

In addition, as a modified embodiment of this embodiment, the locking pin 12 may be attached to the guide rail 4 side, and the locking plate 9 may be attached to the slide rail 3 side. In this case, the operating rod 7 may be attached to the guide rail 4 or the slide It is provided on either one of the rails 3.

8 to 10 show another embodiment, and according to the drawings, a recessed portion 18b is provided on the shelf upper part lea of the guide rail 16 attached to the desk 15 side, and this recessed portion A bush latch device B is attached to the IEib via a mounting bracket 18.

Incidentally, this mounting bracket 18 may be provided integrally with the guide rail 16.The operating rod 20, which is slidably housed inside the case body 18, is locked to this bush latch device B by the first press. A bush latch mechanism using a known locking plate or locking cam is internally equipped to release the lock and return to the original position with the next press.

Therefore, when the drawer 17 is closed, the roller 22 attached to the rear end surface of the slide rail 21 that moves together with the drawer 17 reaches the concave curved portion 16b provided on the guide rail 16, and as it falls, the roller 22 attached to the rear end surface of the slide rail 21 moves together with the drawer 17. The operating rod 20 of the bush latch device B is pushed with the protruding piece 21a. The actuating rod 20 is then locked by a known bush latch mechanism, and at the same time the roller 22 is completely lowered into the curved portion 18b. Therefore, it is easy for the roller 22 to move around the curved portion IEl.
The closed drawer 17 is stably held in the closed state without detaching from the drawer b, and does not come forward even if the desk 15 is slightly tilted.

Next, when opening the drawer 17, when the drawer 17 is pressed in the closing direction, the pressing force is transmitted to the operating rod 20 via the pressing protrusion 21d, and the operating rod is closed via a known bush latch mechanism. 20 is released and automatically pushed forward, this pressing force causes the reroller 22 to move toward the curved portion IB.
b, and at the same time the drawer 17 is pushed forward.

Therefore, the drawer 17 can be fully opened by holding the end of the drawer 17 and pulling it out.

When implemented in this manner, there is an advantage that a normal bush latch device B can be used as is.

FIGS. 11 and 12 show still other embodiments,
According to the drawing, there is a magnet 24 at the tip of the operating rod 23 of the bush latch device C, which is internally equipped with a known bush latch mechanism.
is attached, and the drawer is kept in the closed state by magnetic attraction of the slide rail 25 to the pressing plate 25a by the magnet 24. The structure and function of this bush latch mechanism are similar to those of the previous embodiment. The magnetic attraction means includes a magnet attached to the tip of the case body 2B of the bush latch device C, and a magnetic material attached to the tip of the operating rod 23 so as to make intermittently contact with the magnet, and this contact area ratio is determined by the opening and closing of the drawer. It may be configured such that the magnetic body comes into contact with a magnet and becomes magnetized when the drawer is closed, and is demagnetized when the drawer is opened, by changing the magnetic body depending on the operation. Furthermore, although the rollers have been shown to be open in order to facilitate the movement of the drawer, the present invention is not limited to this point, and a simple sliding mechanism may also be used within the scope of the invention. can be adopted in

Furthermore, as another embodiment, the bush latch device may be provided between the desk and the drawer other than between the rails, and the structure of the bush latch device is not particularly limited; in short, the drawer is locked and held by the first press. 2,
It is sufficient that the next press releases the lock and pushes the drawer forward slightly.

As explained in detail above, this invention automatically locks or stably holds the drawer of a desk or cupboard by simply pressing it in the closing direction, and when the drawer is pressed further, this stable holding etc. is released and the drawer automatically locks or holds the drawer stably. By eliminating the handle of the drawer, design limitations can be eliminated, and the drawer can be prevented from falling out during moving or earthquakes, and stored items can be stored outside. It is possible to achieve the effect of not jumping out and being safe.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a perspective view of a drawer of a desk in which this invention is implemented, FIG. 2 is an exploded perspective view showing essential parts of the invention, and FIG. 3 is a side view of the same. 4 is a sectional view taken along line A-A in FIG. 3, FIG. 5 is a sectional view taken along line BB in FIG. 3, FIG. 6 is an enlarged side view for explaining the bush latch device, and FIG. FIG. 8 is an enlarged side view showing a state before locking the slide rail, FIG. 8 is a side view showing another embodiment, FIG. 9 is a side view showing the same operating state, and FIG. FIG. 11 is a partial side view showing still another embodiment, and FIG. 12 is a partial side view showing the same working station pair. 1.15...Desk 2.17・Φ・Drawer 3.21...
Slide rail 4.18... Guide rail 5.22... Roller 6, Φ, Roller A, B, C...
・Button latching device Fig. 7 Fig. 11 Fig. 12

Claims (1)

[Claims] A main body of a desk, a cupboard, etc., a drawer attached to the main body so as to slide smoothly, for example, via a roller, etc.;
It consists of a bush latch device interposed between this drawer and the main body, which holds the drawer when it is closed and pressed in the closing direction, and when pressed further, releases this holding and pushes the drawer slightly in the opening direction. A drawer opening/closing holding device, characterized in that the drawer is configured to be opened and closed.