JPH07275049A - Forward tumbling prevention structure for desk - Google Patents

Abstract

PURPOSE:To obtain a forward tumbling prevention structure which achieves high workmanship with easier mounting and is hard to damage. CONSTITUTION:A shaft hole 40 is made to pierce a free end part of a shaft plate 38 formed at the center of a bumper 14 and a roller 44 is supported on the shaft hole 40. In this manner, the bumper 14 is integrated with the roller 44 to allow the prevention of forward tumbling of a desk simply by mounting the bumper 14 on the lower rim of a drawer. When the drawer is pulled oat, the front of the drawer is supported with the roller 44 rolling on a floor surface to allow the smoothing of the pull in/pull out operation. In addition, as the roller 44 is arranged inside the bumper 14, even when an obstacle hits a buffer plate 16 of the bumper 14, the impact energy is absorbed, not transmitted to the roller 44, eventually causing no damage to the roller 44. The roller 44 can be removed from the shaft plate 38 easily by pushing the shaft plate 38 to expand in the direction of separating from the roller.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a desk tilt-preventing structure provided in a drawer of a desk.

[0002]

2. Description of the Related Art As shown in FIG. 5, there is a desk 62 in which a sleeve desk 60 can be stored or pulled out in accordance with a usage pattern. Sleeve desk 6
A caster 66 is attached to the lower edge of 0 so as to support the load applied to the top plate 64 to prevent the sleeve desk 60 from falling and to smoothly perform the operation of moving the sleeve desk 60 in and out. Consideration has been given (Jitsuko 40-17819)
(See the official gazette).

[0006] By the way, drawers are also arranged in multiple stages on a desk that is usually used, and the drawer arranged at the bottom is made large for storing documents and the like (see FIG. 2).
When a large amount of documents are stored in such a large drawer, the load may be concentrated on the front side of the desk when the drawer is pulled out, and the desk may tilt forward.

For this reason, there is a method of preventing the desk from tilting forward by attaching a conventional caster 66 to the lower end of the large drawer, but it is not easy to attach the caster 66 and the drawer is stored. Since the casters 66 are exposed, the appearance is spoiled. Furthermore, caster 66
Protrudes from the lower end of the drawer and forms a large gap with the floor surface, so the toes of the toes may be caught by the caster 66, or other office equipment may collide with and damage the caster 66.

[0005]

SUMMARY OF THE INVENTION In consideration of the above facts, an object of the present invention is to provide a desk-prevention preventing structure which is easy to install, has a good appearance, and is hard to be damaged.

[0006]

According to a first aspect of the present invention, there is provided a desk-preventing structure for a desk, which is provided in a lowermost drawer of a desk, and covers a lower edge of a front plate of the drawer. And a roller that is axially supported inside the buffer member and that comes into contact with the floor surface on which the desk is placed.

In the desk-up forward-preventing structure according to a second aspect of the present invention, the roller is detachably supported by a pair of shaft plates which are arranged to face the inside of the buffer member and which can be elastically contacted and separated. It is characterized by that.

According to a third aspect of the present invention, there is provided a desk tilt preventing structure, wherein the desk tilt preventing structure is provided in a bottom drawer of the desk, and is attached to a lower edge of a front plate of the drawer. A shock-absorbing member that covers the inner surface of the shock-absorbing member, a pair of shaft plates that stand upright inside the shock-absorbing member and that can be elastically brought into contact with and separated from the shock-absorbing member; It is characterized in that it has a roller pivotally supported by the shaft plate and a support portion arranged between the shaft plates and capable of supporting the outer peripheral surface of the roller.

[0009]

In the desk-top forward-preventing structure according to the first aspect, the roller is axially supported inside the cushioning member that covers the lower edge of the front plate of the drawer. This roller is grounded on the floor on which the desk is placed, and when the drawer is pulled out, it supports the load applied to the drawer to prevent the desk from tilting forward and facilitates the drawer operation. Further, since the roller is arranged inside the cushioning member, even if the drawer collides with an obstacle,
The impact energy is absorbed by the buffer member. Therefore, the roller is not damaged.

In the desk-up tilting prevention structure according to claim 2,
By elastically pushing and expanding the pair of shaft plates, the roller can be pivotally supported by the shaft plates. Therefore, it is possible to easily replace the roller, which is easily worn.

In the desk-top tilting prevention structure according to claim 3,
A roller supported by a shaft plate is guarded by a buffer member while being in contact with a floor surface on which a desk is placed. In this way, the gap between the roller and the ground is opened, and the gap between the cushioning member and the floor surface is minimized, so that the toe of the foot or the like is not caught on the roller. Further, when a heavy item is stored in the drawer, the roller is pushed up by the reaction force from the floor surface.
At this time, the shaft plate expands, and the outer peripheral surface of the roller is supported by the support portion arranged between the shaft plates. In this way, since a large load is not applied to the rotary shaft of the roller, the rotary shaft of the roller is not damaged.

Since the roller, the shaft plate, and the support portion are integrally provided to the cushioning member, the forward tilting prevention structure of the desk can be constructed only by attaching the cushioning member to the lower edge of the drawer.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 to 4, the desk-up front structure according to the present embodiment includes a bumper 14 as a cushioning member attached to the drawer 12 at the bottom of the desk 10.

The bumper 14 has a substantially L-shaped cross section and is provided with a buffer plate 16 which is flush with the front plate 12A of the drawer 12. Reinforcing box portions 18 are formed at both ends of the buffer plate 16. The corner portion 18A of the box portion 18 is rounded to ensure the safety of the user.

At the upper edge of the buffer plate 16, there is formed a plate-shaped top portion 20 which projects at a right angle to the drawer 12 side and is connected to both ends of the buffer plate 16. From this top 20, the buffer plate 1
Mounting plates 22 that extend between the box portions 18 provided on both sides of 6 bulge upward. A step portion 24 between the mounting plate 22 and the top portion 20 is adapted to engage with a corner portion of the front plate 12A of the drawer 12.

Further, the mounting plate 22 is provided with a positioning projection 26 which is inserted into a mounting hole (not shown) formed in the lower surface of the front plate 12A, and a screw hole 28 through which a fixing screw is inserted. ing. Further, inside the bumper 14, a plate-shaped stay 30 that extends from the mounting plate 22 to the buffer plate 16 is disposed. As a result, the buffer plate 16 has a predetermined impact strength.

On the other hand, in the center of the bumper 14, a rectangular box body 32 having the cushioning plate 16 as a part of its components is formed. Two slits 36 are cut in parallel in the vertical direction on the side plates 34 of the box 32 that face each other.
The portion cut by this slit 36 is the shaft plate 3
It is supposed to be 8. By forming the shaft plate 38 in this manner, the free end of the shaft plate 38 can be elastically tilted.

The free end of the shaft plate 38 projects from the upper portion of the box 32, that is, the lower edge of the buffer plate 16.
A shaft hole 40 penetrates the free end of the shaft plate 38. A boss portion 42 is formed on the outer surface of the free end of the shaft plate 38 coaxially with the shaft hole 40 to reinforce the shaft hole 40.

A roller 44 is axially supported in the shaft hole 40. A disc 46 is provided at the center of the roller 44. From the outer peripheral edge of the disc 46, a cylindrical body 48 as a rotation surface is extended to both sides in the thickness direction of the disc 46. By forming the hollow roller 44 in this way, the molding material can be reduced.

A cylindrical body 50 having a diameter larger than the diameter of the shaft hole 40 is provided so as to project coaxially with the cylindrical body 48 from the center of the disk 46. A rotary shaft 52 that is axially supported by the shaft hole 40 from the end surface of the columnar body 50 is provided so as to project coaxially with the columnar body 50. The rotary shaft 52 has a size that can be inserted into the shaft hole 40, and a tip end surface thereof is obliquely cut from the central portion to the outer peripheral surface to form a guide surface 52A. This guide surface 5
While pushing 2A against the inner side of the shaft plate 38, the shaft plate 3
By elastically pushing 8 apart, the roller 44 can be easily attached.

Further, from the bottom of the box 32, three support plates 54 are erected at a predetermined interval. The tip of the support plate 54 is cut in an arc shape so as to be able to support the outer peripheral surface of the cylindrical body 48 of the roller 44 pivotally supported by the shaft plate 38. As a result, even if a large reaction force acts on the roller 44 from the floor surface, the shaft plate 38 opens slightly outward, pushes up the rotary shaft 52, and receives the cylindrical body 48 by the support plate 54.
No large force acts on 2.

Next, the function of the forward tilting prevention structure for the desk according to this embodiment will be described. In this embodiment, since the roller 44 is integrally provided on the bumper 14, it is possible to prevent the desk 10 from tilting forward only by mounting the bumper 14 on the lower edge of the drawer 12.

When the drawer 12 is pulled out, the rollers 44 support the front surface of the drawer 12 while rolling on the floor surface.
The drawer 12 can be smoothly moved in and out. Also, the roller 4
Since 4 is arranged inside the bumper 14, even if an obstacle collides with the buffer plate 16 of the bumper 14, the impact energy is absorbed without being transmitted to the roller 44, and as a result, the roller 44 is damaged. do not do. Further, since the roller 44 is covered by the bumper 14, it is difficult to see it from the outside, the appearance of the desk 10 is improved, and the toes of the foot are not caught.

Further, the roller 4 is repeatedly moved in and out.
Even when it is necessary to replace the roller 4, the rollers 44 can be easily removed from the shaft plate 38 by expanding the shaft plates 38 in the direction in which they are separated from each other, and the guide surface 52A provided on the rotary shaft 52 can be further removed. The roller 44 can be easily attached by pushing the shaft while pressing it against the inner surface of the shaft plate 38.

When a heavy item is stored in the drawer 12, the roller 44 is pushed up by the reaction force from the floor surface. At this time, the shaft plate expands, and the cylindrical body 48 of the roller 44 is supported by the support plate 54 arranged between the shaft plates 38. Therefore, since a large load is not applied to the rotary shaft 52, the rotary shaft 52 is not damaged.

[0026]

Since the present invention has the above-mentioned structure, the roller can be easily attached and looks good, and the roller will not be damaged even when a large load is applied to the drawer.

[Brief description of drawings]

FIG. 1 is a perspective view showing a desk before a desk tilt-preventing structure according to the present embodiment is applied.

FIG. 2 is a perspective view showing the desk after the forward tilting prevention structure for the desk according to the present embodiment is applied.

FIG. 3 is a perspective view of a bumper with rollers that constitutes the forward tilting prevention structure for the desk according to the present embodiment, as viewed from the front side.

FIG. 4 is a perspective view of a bumper with rollers that constitutes the desk top prevention structure according to the present embodiment, as viewed from the back side.

FIG. 5 is a perspective view showing a conventional forward tilting prevention structure for a desk.

[Explanation of symbols]

 12 Drawer 14 Bumper (cushioning member) 38 Shaft plate 44 Roller 54 Bearing plate (bearing part)

Claims (3)

[Claims] 1. A forward tilting prevention structure for a desk, which is provided in a bottommost drawer of a desk, wherein a cushioning member that covers a lower edge of a front plate of the drawer and a desk that is axially supported inside the cushioning member are placed. A front-prevention preventive structure for a desk, comprising: a roller that comes into contact with the ground floor. 2. The desk according to claim 1, wherein the roller is detachably supported by a pair of shaft plates which are arranged to face each other inside the cushioning member and which can be elastically contacted and separated. Anti-tilt structure. 3. A front fall prevention structure for a desk, which is provided in a bottom drawer of a desk, wherein a buffer member is attached to a lower edge of a front plate of the drawer and covers a lower edge of the front plate, and an inside of the buffer member. A pair of shaft plates that are erected to face each other and can be elastically contacted and separated from each other; And a supporting portion which is arranged between the plates and which can support the outer peripheral surface of the roller.