JPH038094Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a folding leg device for vending tables and desks, and facilitates the folding and downward extension of the folding legs.

(Prior art) A short leg is protruded from the bottom surface of the top plate of a sales table or desk, and a folding leg is pivotally supported on the short leg so that it can be freely extended and folded downward, and the folding leg is pivoted on the short leg so that it can be freely extended and folded. It is known that a structure is provided with an engaging element that can be freely inserted into and out of the short leg from the folding leg due to the elasticity of the spring. It must be pulled out from the short leg against the elastic force, and the pulling force cannot be removed until the engaging element comes off laterally from the insertion hole provided in the short leg. When creating a configuration in which they are connected by a horizontal bar, the same operation must be performed for each engaging element for both folding legs, and if they are not connected and each is made into an independent folding leg, the It has the disadvantage of being weak in strength.

(Problems to be Solved by the Invention) In view of the above, the present invention provides a method in which each engager of a pair of folding legs of a known structure connected by a connecting bar to increase strength can be extracted from each short leg by one action. The problem to be solved is to do so.

(Means for solving the problem) The purpose of this invention is to solve the problem mentioned in the previous section.The purpose of this invention is to protrude short legs from the underside of the top of sales tables and desks, and fold the legs onto the short legs. The legs are pivotally supported so that they can be freely extended and folded downwards, and an engaging element is provided above or below the pivoting portion to freely fit in and out from the folding leg to the short leg by the elasticity of the spring. A rope is provided to connect the engaging elements of the folding legs, and the rope is fitted into a groove in a winding drum member that is rotatably supported in place, and a handle and retaining ring is fitted on both sides of the groove in the winding trunk member. This invention relates to a folding leg device for sales stands and desks, which is characterized by the following.

A preferred embodiment of the invention will now be described.

(Embodiment) As shown in FIGS. 1, 3, and 4, in this embodiment, short legs 2 made of square pipes are protruded from the lower surface of the four corners of a top plate 1 of a display stand, desk, etc., and each of the short legs 2 is A folding leg 5 made of a square pipe is attached parallel to the inner surface of the shaft 4.
A pin 7, which is passed through the upper part of the shaft 4 in the radial direction a little inside from the tip, is applied to the inner surface of the folding leg 5 near the short leg 2, and a spring 8 is inserted between the pin 7 and the short leg 2. An engaging element 6 hung on the inner surface of the far folding leg 5 is slidably passed across the folding leg 5, and its tip is fitted into an engagement hole 3 provided in the short leg 2 and locked. The engaging element 6 is provided with a stepped hole 9 from its tip.

The folding legs 5 have a pair of front and rear legs, and engagers 6,
Both ends of a rectangular pipe-shaped horizontal bar 10 are fixed by surrounding each inward protrusion of 6, and engaging heads 12, 12 are fitted into step holes 9, 9 to engage the engagers 6, 6. , the rope 11 between its engaging heads 12, 12 is passed through the horizontal bar 10.

At the center of the length of the horizontal bar 10, a winding drum member 13 with a head flange 14 engaged on the upper surface projects to the lower surface of the horizontal bar 10 and is supported freely in rotation, and is provided from the lower end surface of the winding drum member 13. Pass the rope 11 through the split groove 15.
Insertion holes 16, 16 are provided on both sides of the split groove 15 in the portion of the winding drum member 13 that projects from the horizontal bar 10.

Reference numeral 17 denotes a C-shaped handle and retaining ring, and the insertion ends 18, 18 on both sides are rotatably fitted into the insertion holes 16, 16 on both sides of the split groove 15 of the winding drum member 13.

In the present invention, the winding drum member 13 is rotated approximately 60° to 100° using a handle/retaining ring 17, etc., and the rope 11 is wound around the engaging elements 6, 6 to engage the engaging holes 3, 3 of the short legs 2, 2. The winding drum member 13
Determine the outer diameter of.

(Function) In the present invention, for example, when the folding legs 5, 5 are being erected, the winding drum member 13 is rotated as described above, and the rope 11 is wound around the rope 11 to shorten the actual length. 6 at the same time as the engagement hole 3 of the short legs 2, 2,
3 and fold the folding legs 5, 5 onto the lower surface of the top plate 1 as shown by the chain lines in FIG. 6, 6 resists springs 8, 8, short legs 2,
The degree of protrusion of the engaging elements 6, 6 toward the short legs 2, 2 side, and the size of the hemispherical head are such that the engaging elements 6, 6 enter each inner surface of the short legs 2, find the engaging holes 3, 3, and are simultaneously fitted with the elasticity of the springs 8, 8. etc. can also be determined.

(Effects) The present invention has the configuration as exemplified above, and includes a pair of front and rear or left and right folding legs 5, 5 connected by a horizontal bar, and an engaging element 6, which fits into each pivotally supported short leg 2, 2 with spring elasticity. 6, a rope, a winding drum member 13 provided with a split groove 15, and a handle/retaining ring 17 that is fitted on both sides of the split groove 15 and attached to the winding drum member 13. Since it is easy to operate, it has the effect of allowing one person to perform folding, extension, etc.

[Brief explanation of the drawing]

The attached drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view, Fig. 2 is an exploded perspective view of main parts, and Fig. 3 is an exploded perspective view of the main parts.
The figure is a partially cutaway side view, and FIG. 4 is a partially cutaway side view. 1...Top plate, 2...Short legs, 3...Engagement hole, 5...
...Folding leg, 6... Engagement element, 8... Spring, 10...
Horizontal bar, 11... Rope, 13... Winding trunk member, 1
4... Head guard, 15... Split groove, 16... Insertion hole,
7...Handle and retaining ring.

Claims (1)

[Scope of utility model registration request] A short leg is protruded from the bottom surface of the top plate of a sales table or desk, and a folding leg is pivoted on the short leg so that it can be freely extended and folded downward, and the folding leg can be folded by the elasticity of the spring above or below the pivot support part. An engaging element that can be freely inserted into and out of the short leg from the tatami leg is provided, a rope is provided to connect the engaging elements of the pair of front and rear, left and right folding legs, and the rope is supported in a rotatable position to split the winding drum member. A folding leg device for sales tables and desks, which is fitted into a groove and has a handle and retaining ring fitted to both sides of the groove of the winding body member.