JPH10215951A - Folding device for table supporting leg - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain cost reduction by safely reducing the number of parts without catching any finger by forming a pivot point by positioning the other end of supporter link, pivotally attaching its one end to a supporter, and the other end of supporting leg link closer to the outside of top plate, and linking the pivot points positioned on both the sides of top plate through an operating lever. SOLUTION: A tube-shaped frame 2 is fixed on both the sides of the lower surface of top plate by a bolt. A block-shaped supporter 3 is fixed on both the ends of frame 2, and a tube-shaped supporting leg 5 is pivotally attached on a rotary shaft 4 at the intermediate part of supporter 3 and provided so as to be freely folded. The upper end of supporting leg 5 and one end of supporting leg link 6 are linked through a pin 7, the other end of supporter link 9 linking its one end through a pin 8 to the supporter 3 and the other end of supporting leg link 6 are formed at pivots 10 and these pivots 10 on both the sides are linked through a tube-shaped lever 11. Thus, since the operating lever is turned while being held, danger to catch the finger is completely eliminated, it is safe and product liability can be satisfied.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding device for a table leg, and more particularly to a folding device for a table leg which is safe without pinching a finger during a folding operation, has a small number of parts, and has a simple structure. belongs to.

[0002]

2. Description of the Related Art As conventional folding devices for table legs, for example, Japanese Utility Model Publication No. 6-26176, "Table Leg Folding Device", Japanese Utility Model Laid-Open No. 7-25833, "Folding Table" and Japanese Utility Model Laid-Open No. 7-20856, "Folding Device". There is a tatami table.

[0003]

In the above-described conventional folding device for a table support leg, a finger may be pinched during the folding operation, which is a problem in recent years when the responsibility of the manufacturer is held. In addition, the conventional table leg folding apparatus has a large number of parts, has a complicated structure, and cannot be provided at low cost.

[0004]

SUMMARY OF THE INVENTION Accordingly, in view of the above circumstances, the present invention has been made to provide a top plate that is safe without pinching a finger, has as few components as possible, and is provided at low cost. The legs are pivotally attached to a support fixed to the four lower corners of the lower surface so as to be freely foldable, the upper end of the legs and one end of the legs are pivotally connected, and the other end of the support link having one end pivotally connected to the support and the legs link. A pivot point is formed so that the other end of the table is located on the outer side of the top plate, and the pivot points located on both sides of the top plate are connected by an operation lever to provide a folding device for a table support leg.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on a specific embodiment shown in the accompanying drawings. Figure 1,
2 and 3 show an outline of the entire table of the present invention. FIG. 1 is a front view, FIG. 2 is a plan view, and FIG. 3 is a side view.

A tubular frame 2 is fixed to both lower surfaces of the top plate 1 with bolts. A block-shaped support 3 is fixed to both ends of the frame 2, and a tubular supporting leg 5 is pivotally mounted on a rotation shaft 4 at an intermediate portion of the support 3 so as to be foldable. The upper end of the support leg 5 is connected to one end of the support link 6 by a pin 7, and the other end of the support link 9 whose one end is connected to the support 3 by a pin 8 is connected to the other end of the support link 6. Formed into 10,
The pivot points 10 on both sides are connected by a tubular operation lever 11.

The supporting legs 5 on both sides have a tubular connecting pipe 12 at the center.
Are connected by The three tubular shelf members 13 arranged in parallel are connected at the center by a connecting plate 14, the ends of the shelf members 13 are fixed to tubular connecting members 15, and both ends of the connecting members 15 are flat tube portions 16. Is formed. This connecting member 15
Are connected to the other end of the shelf link 18 having one end connected to the bracket 20 fixed to the upper part of the support leg 5 by the pin 17 and the flat tube portion 1.
6 is connected with the pin 19, and when the supporting leg 5 is folded,
The interposition of the shelf link 18 allows the support leg 5 at the shelf 13 to be folded.

FIGS. 4, 5 and 6 show an enlarged view of a main part of the folding device in which the frame 2 and the supporting leg 5 are attached to the support 3. FIG. 4, 5, and 6 are illustrated upside down in the manner illustrated in FIGS. 1, 2, and 3. Thus, the bottom of FIGS. 4, 5 and 6 is marked as top when used as the actual table. FIG.
5 shows a state in which the support leg 5 is locked, FIG. 5 shows a state in which the lock is released, and FIG.

FIG. 4 shows a state in which the support leg 5 stands upright with respect to the top plate 1 and the support leg 5 is locked. A support 3 is fixed to an end of the frame 2, and a support leg 5 is provided so as to be foldable around a rotation axis 4 of the support 3. The support leg 5 and one end of the support link 6 are connected by a pin 7, and the other end of a support link 9 whose one end is connected to the support 3 by a pin 8 and the other end of the support link 6 are pivotally connected to a pivot point 10. The pivot points 10 on both sides are connected by an operation lever 11. The operation lever 11 is, as shown in FIG.
The center is recessed for easy gripping.

On the other hand, a pin 19 at the other end of the shelf link 18 having one end connected to a bracket 20 fixed to the support leg 5 by a pin 17 is inserted into the flat tube portion 16 of the connecting member 15 fixed to the shelf 13. When the legs 5 are connected and folded, the legs 5 of the shelf 13 can be folded by the interposition of the shelf link 18. When the support leg 5 is locked to the support 3, the operation lever 11 is rotated to guide the pin 7, and a guide arc surface 21 is formed on the support 3 to lock the support leg 5 at the end of the guide arc surface 21. A lock groove 22 is formed.

A relief groove 23 is formed in the support body link 9 so as not to interfere with the pin 7 when locked. Next, the operation of the table leg folding device will be described. When the operation lever 11 is gripped and rotated in the direction of arrow A as shown in FIG. 5 to release the lock of the support leg 5 from the locked state shown in FIG. 4, the support leg 5 and the support link 6 Rotating to the center, the support leg 5 is tilted, the pin 7 leaves the lock groove 22, and the operation lever 11 is also in the state shown by the two-dot chain line.

The shelf link 18 also moves to the state where the pin 19 is shown by the two-dot chain line, allowing the shelf material 13 to move smoothly.
Further, when the operation lever 11 is rotated, the support leg 5 is folded as shown in FIG. The pin 7 of the support link 6 is located outside, and the support 5 is folded until it is parallel to the frame 20.

To erect the folded leg 5, the reverse operation is performed. That is, the operation lever 11 is rotated from the state of FIG. 6 to rotate the support leg 5 around the rotation axis 4, and the support leg 5 of FIG. 5 is raised from the state shown by the two-dot chain line to the state shown by the solid line, and stands up. 7 enters the lock groove 22 and is locked.

[0014]

As described above, according to the present invention, the support legs are pivotally attached to the support fixed to the four lower corners of the top plate so as to be freely foldable, and the upper end of the support and one end of the support link are pivotally connected. A pivot point is formed such that the other end of the support link having one end pivotally connected to the other end of the support link is located closer to the outside of the top plate, and the pivot point is located on both sides of the top plate. Is connected by an operation lever, and the operation lever is gripped and rotated, so that there is no possibility of pinching a finger, which is safe and can fulfill the responsibility of the manufacturer.

In addition, the number of parts can be reduced as much as possible in comparison with the conventional folding device, the structure can be simplified, and it can be provided at a low cost.

[Brief description of the drawings]

FIG. 1 is a front view showing an overall outline of an embodiment of a table folding device according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a side view of FIG. 1;

FIG. 4 is an enlarged side view of a main part in a locked state in which a main part of the folding device in which a frame and a supporting leg are attached to a support is turned upside down.

FIG. 5 is an enlarged side view of a main part showing a state at the time of unlocking.

FIG. 6 is an enlarged side view of a main part showing a folded state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Top plate 2 ... Frame 3 ... Support body 4 ... Rotating shaft 5 ... Leg 6 ... Leg link 7 ... Pin 8 ... Pin 9 ... Leg link 10 ... Pivot point 11 ... Operation lever 13 ... Shelf material 15 ... Connection member 16 ... flat tube part 17 ... pin 18 ... shelf link 19 ... pin 20 ... bracket 21 ... arc guide surface 22 ... lock groove 23 ... escape groove

Claims (1)

[Claims] 1. A support link in which a support leg is pivotally attached to a support fixed to four corners of a lower surface of a top plate, an upper end of the support leg and one end of the support link are pivotally connected, and one end is pivotally connected to the support. A table formed by forming a pivot point such that the other end of the top link and the other end of the leg link are positioned closer to the outside of the top plate, and connecting the pivot points located on both sides of the top plate with an operation lever. A device for folding a leg.