JPS6241619Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a foldable desk in which both legs supporting a top plate are configured to be foldable.

Folding desks are useful in that the left and right legs that support the top can be folded toward the bottom of the top, but these types of desks also have a section at the rear of the desk that hides the knees of the person sitting on the table. It is desirable to provide a curtain plate between the left and right legs.

However, due to the structure of a folding desk, it is not possible to fix the curtain plate integrally to the legs, and the top end of the wide and long plate-shaped curtain plate is pivoted to the bottom surface of the top plate. When installing the curtain so that it can be folded, the structure becomes extremely complicated due to the folded legs, and it takes time and effort to stand on the legs, fold the legs, and assemble the curtain. Although there is considerable demand for foldable desks, they have not yet become commonplace.

In this invention, the curtain plate is formed into a bellows shape so that it can be expanded and contracted in the vertical direction, and when it is not needed, it can be compressed and stored on the underside of the top plate, and when necessary, it can be pulled down and used. The above-mentioned drawbacks have been solved by allowing the legs to stand and fold without hindering the user's ability to stand and fold, and by making the operation extremely easy.

In other words, in the present invention, a pair of left and right legs are provided on the left and right sides of the lower surface of the top of the desk so that they can be folded inwardly, and a storage section is provided at the rear of the lower surface of the desk between the two legs. a bellows-like curtain board configured to be extendable and retractable so as to extend in the vertical and front-back directions of the desk is disposed within the storage portion, with the upper end of the bellows-like curtain board being engaged with the top plate, and , a guide rail is provided on the inner surface of the both legs, with which both ends of the bellows-like curtain plate are removably engaged and guide the bellows-shaped curtain plate in the vertical direction, and a lower end of the bellows-shaped curtain plate is provided. The device is provided with a locking device that can be detachably locked to the top plate when the legs are folded, and to an appropriate height position on the legs when the legs are standing. It is.

Hereinafter, an embodiment of the present invention will be described based on the drawings. In the drawing, reference numeral 1 indicates a rectangular top plate of a desk, and reference numeral 2 indicates a top plate foldably attached to both left and right sides of the lower surface of the top plate 1. In this embodiment, the legs 2 are made by having a pair of tubular pillars 2a, 2a bent in a substantially U-shape facing outward, and integrally connected between them by a leg board 2b. It is composed of

When the legs 2 are provided so as to be foldable inward with respect to the top plate 1, a pair of right and left protrusions 3 are fixed to the leg base 2b of the legs 2, which protrude inwardly at right angles from the leg base 2b. On the other hand,
A pair of left and right brackets 4 having an L-shaped cross section are fixed to the lower surface of the top plate 1, and one side plate of both brackets 4 projects downward at right angles to form a hanging piece 4'. A central shaft 5 is attached to both the projecting pieces 3 and both hanging pieces 4'.
are inserted through each, and the leg body 2 is inserted around both central shafts 5.
is configured to rotate approximately 90 degrees from a folded state substantially parallel to the top plate 1 to a state standing at right angles.

Reference numeral 6 shown in FIGS. 3 to 5 indicates a detachable locking device for fixing both legs 2 in the standing state, and this locking device 6 is attached to a pin 10 between both hanging pieces 4'. A connecting rod 15 is rotatably supported at one end by pins 16, 16 on both hanging pieces 4', and a base end is connected to the pressing body 9 by a support shaft 13. It is constituted by each member of an operating rod 12 which is rotatably pivoted, the other end of the connecting rod 15 is pivotally connected to both sides of the connecting rod by a pin 17, and a grip portion 14 is provided at the tip. ing.

When the operating rod 12 of this locking device 6 is rotated so as to approach the lower surface of the top plate 1, the pin 1
6 and the support shaft 13 increases, the pressing body 9 rotates outward, and the protruding strip 11 provided on the pressing body 9 becomes approximately wedge-shaped in cross section on the locking member 7 fixed to the leg base plate 2b. The leg body 2 is locked in the standing state by fitting and pressing into the recess 11.

Further, when the operating rod 12 is rotated in a direction away from the top plate 1, the lock is released, and the legs 2 can be folded inward about the five central axes.

The reference numeral 20 in the figure is a plate piece 20' made of plastic, metal thin plate, cloth, etc. and having a relatively small vertical width and horizontally elongated. This figure shows a bellows-shaped curtain plate that is made to expand and contract in the vertical direction and the front and back directions of the desk.

In forming the bellows-like curtain plate 20, the left and right lengths are made approximately the same as the distance between the left and right legs 2 in the standing state, and the vertical width l of each plate piece 20' is formed on the rear part of the top plate 2. The height dimension t of the storage section is made smaller than the height dimension t of the storage section, and it is configured so that it can be compressed and stored in the storage section.

Further, left and right longitudinal upper and lower frame members 21 and 22 are fixed to the upper and lower edges of the bellows-like curtain plate 20, respectively.The upper frame member 21 is fixed to the top plate 1, while the lower frame member 22 is Detachable locking tools 22, which will be described later, are provided at both left and right end portions, respectively.

On the other hand, guide rails 28 for the bellows-shaped curtain plate 20 are provided on the inner surfaces of the legs 2, respectively.
This guide rail 28 serves to guide the left and right ends of the lower frame member 22 and the left and right ends of the plate pieces 20' connected in a zigzag shape when the bellows-shaped curtain plate 20 is pulled down. It is formed into an L-shape or the like, and the upper part thereof is bent into an arc shape having the same shape as the base of the pillar 2a, so that the guide pieces 28' of the guide rail 28 are connected to the left and right inner sides of the desk at the rear pillar 2a of both legs 2. The legs are arranged at appropriate height positions from the upper end horizontal part of each pillar 2a to the vertical part so as to protrude toward the side facing the lower surface of the top plate 1 when the legs are folded. When the curtain plate 20 is compressed and stored, it is locked to the top plate 2 by the locking tool 23 (see Fig. 11), and when it is pulled down,
At the locking tool 23, the leg body 2 or the guide rail 2
It is configured to be removably locked at an appropriate height position of 8.

As the locking tool 23, for example, as shown in FIG. 7, magnet pieces 24 are provided at both left and right ends of the lower frame member 22 so as to be freely retractable in the directions of arrows A and B.
It is constructed so that it can be freely attached to and detached from the guide rail 28.

In addition, the reference numeral 18 in the figure is a shelf board provided so as to be able to be hung on the lower surface of the top plate 1, and each of the other ends of four arms 19, one end of which is rotatably pivoted to the lower surface of the top plate 1,
It is pivotably attached to the four corners of the shelf board 18 so that it can be hung and stored.

In the above configuration, when not in use, the bellows-like curtain plate 20 is stored in the storage section provided at the rear of the bottom surface of the top plate 1 as described above. If the locking device 23 is released from the top plate 1 by pulling it in the direction, it can be freely pulled down.

Therefore, after releasing the bellows-shaped curtain plate 20 from the top plate 1, the left and right ends of the lower frame member 22 and the left and right ends of each plate piece 20' are pulled down along the guide rail 28, and then If it is locked to the guide rail 28 or the leg body 2 at a height of , it functions as a curtain plate.

When not in use or when folding the legs 2, the operation is the reverse of the above. First, pull the magnet piece 24 of the locking tool 23 in the direction of arrow A to lock it to the guide rail 28 or the legs 2. After canceling the
The bellows-shaped curtain plate 20 is compressed upward and stored in a storage section at the rear of the lower surface of the top plate 1, and is locked to the top plate 1 with a locking tool 23. This way, it will be in the same state as a normal folding desk and can be folded without any problems.

The locking tool 23 is not limited to the one using the magnet 24 of the above embodiment, and for example, the locking tool 23 shown in FIGS.
As shown in the figure and FIG. 13, pins 25 are provided so as to be able to protrude and retract outward from both left and right ends of the lower frame member 22, and are inserted into holes 26 that are bored in the leg body 2 and the guide rail 28 at appropriate intervals in the vertical direction. They may also be engaged. Note that when the magnet is used, the height can be adjusted steplessly, while when a pin is used, the lock can be reliably secured and it can be prevented from coming off.

As described above, in the present invention, a pair of left and right legs are provided on both left and right sides of the lower surface of the top of a desk so that they can be folded inwardly, while a pair of legs is provided at the rear of the lower surface of the top of the desk at a portion between the two legs. A storage section is provided, and a bellows-shaped curtain board configured to be extendable and retractable so as to extend in the vertical and front-back directions of the desk is disposed within the storage section, with the upper end of the bellows-shaped curtain board attached to the top plate. , and guide rails are provided on the inner surfaces of the two leg bodies, and guide rails are provided in which both ends of the bellows-shaped curtain plate are removably engaged and guide the bellows-shaped curtain plate in the vertical direction, so that the bellows-shaped curtain plate A locking device is provided at the lower end so that the legs can be removably locked to the top plate when the legs are folded, and to an appropriate height position on the legs when the legs are standing. Since the curtain plate is formed into a bellows shape that can be folded telescopically, it is extremely compact when folded, can be stored without protruding from the underside of the top plate, and can be pulled down and used when necessary.

In addition, the operation of extending and retracting the curtain plate and folding the legs is extremely easy and requires no effort, and because it fits compactly on the underside of the top plate, it does not get in the way of other parts and the desk as a whole is bulky. The structure is not complicated or complicated, and it can be provided at an extremely low cost.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a front view of the desk, FIG. 2 is a right side view, and FIG. 3 is a view of the desk shown in FIG.
Bottom view, Figure 4 is a - view of Figure 3, Figure 5
The figure is an explanatory diagram of the folding action of the legs, FIG. 6 is a sectional view taken from the side in FIG. 1, FIG. 7 is a sectional view taken from the side shown in FIG. 6, and FIG. Figure 11 is a sectional view taken along line XI-XI in Figure 10.
2 is a sectional view taken along line XII-XII of FIG. 10, and FIGS. 8, 9, and 13 are views showing another embodiment.
The figure is a sectional view taken along the line -- in FIG. 1... Top plate, 2... Legs, 6... Lock device,
20... curtain plate, 23... locking tool, 28... guide rail.

Claims (1)

[Scope of utility model registration request] A pair of left and right legs are provided on the left and right sides of the lower surface of the top of the desk so that they can be folded inwardly, and a storage section is provided at the rear of the lower surface of the top at a portion between the legs. A bellows-like curtain board that is extendable and retractable so as to extend in the vertical and front-back directions of the desk is disposed in the storage section, with the upper end of the bellows-like curtain board being engaged with the top plate, and On the inside surface,
A guide rail is provided with which both ends of the bellows-shaped curtain plate are removably engaged and guide the bellows-shaped curtain plate in the vertical direction, and at the lower end of the bellows-shaped curtain plate,
A folding type device characterized in that a locking device is provided on the top plate when the legs are folded, and at an appropriate height position on the legs when the legs are standing. desk.