JP2538467Y2 - Leg device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leg device having a bendable leg.

[0002]

2. Description of the Related Art An apparatus having legs which can be freely bent and attached to a frame is disclosed in Japanese Utility Model Laid-Open No. 1-70008 by the same applicant. The lock button for holding the legs in the upright state disclosed in this prior art includes a fixing bracket serving as an upper hinge body fixed to the frame, and a lower hinge body pivotally supported by the fixing bracket and having a hook portion. It is not attached to any of the rotating brackets, but is attached to an upper portion of a cover that covers the outer side surface of the fixing bracket.

[0003] Then, the pivoting metal fitting and the fixing metal fitting are pivotally supported, and the standing state of the leg is held by the locking of the lock button and the locking portion.

However, since the lock button is mounted on the cover side, when the cover on which the lock button is mounted is put on the fixed metal fitting after the turning metal fitting and the fixed metal fitting have been connected, the dimensions of the lock button and the locking part are adjusted. Is troublesome and the assemblability is poor,
Also, even when the leg is in the upright position, the lock button and the latching portion cannot be latched, and the upright state cannot be maintained, and even if the leg is temporarily hung, the leg is shaken slightly left and right. In such a case, there is a danger that the hook is released, the leg is bent from the pivot, and the frame body falls sharply to hurt the knee, or a finger is pinched between the leg body and the frame due to unexpected bending.

[0005]

SUMMARY OF THE INVENTION The present invention relates to an improvement in a lock button for holding at least the upright state of a leg, which simplifies the work of mounting the lock button and reliably holds the lock state.

[0006]

SUMMARY OF THE INVENTION A frame, a mounting bracket fixed in place on the frame, a fixing bracket fixed to the mounting bracket and having a support portion formed on an upper portion, and mounted on a support portion of the fixing bracket. A lock button provided with a shaft pin to be placed, a stopper, and an operation button, a cover covering the outer surface of the fixing bracket and facing the operation button, and a locking piece pivotally supported by the fixing bracket and provided at an upper portion. And a leg that holds at least the upright state by locking the stopper with the hooking piece.

[0007]

[Function] Since the lock button is supported on the upper part of the fixing bracket for pivotally supporting the leg, the degree of engagement between the lock button and the leg can be confirmed in each unit when the fixing bracket and the leg are connected. In addition, the assemblability of the lock button is improved.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings.
(1) is a wooden frame in which a plurality of crossbars (2) and (2) are formed in, for example, a quadrangle, and (3) is a mounting bracket having a U-shaped cross section fixed to an appropriate position (corner portion) of the frame (1). Thus, a screw insertion hole (4) is formed. Reference numeral (5) denotes a box-shaped fixing bracket, which is provided with a screw hole (6) on the front surface and shaft holes (7) and (7) on both sides, and a rectangular operation hole (8) on the top. And bearing portions (9) and (9) are formed in the hole walls opposite to the operation hole. (10) is a lock button provided with shaft pins (11) (11) on both sides substantially at the center side, a stopper (12) on one side, and an operation button (13) on the other side, and the stopper (12) is A boss (14) is formed on the upper part, and as shown in FIG. 1, when the shaft pins (11) and (11) are supported on the bearings (9) and (9), the stopper (12) side is inclined downward. Is set. This inclination is made stronger by a spring (15) interposed between the boss (14) and a cover (23) described later.

[0009] (16) is a synthetic resin leg in which a hook portion (17) is provided at the uppermost portion and shaft holes (18) and (18) are formed on both lower sides thereof.
An insertion portion (20) having a curved wall (19) on one side is formed in the upper part. (21) is a cap covering the lower part of the leg (16), (22)
Is a shaft for pivotally supporting the fixing bracket (5) and the leg (16).

In (23), a screw insertion hole (24) is formed on the front surface, and two notches (25) (25) and a through hole (26) are provided on the upper surface, and an engagement portion (27) is formed on the lower inner wall. The cover made of synthetic resin provided covers the outer surface of the fixing bracket (5). (28) is the notch (2
5) Non-slip rubber of a top plate (not shown) protruding above (25).

Next, the assembling sequence and operation will be described.
The insertion part (20) of the leg (16) to which the cap (21) is fitted and fixed is inserted into the box of the fixing bracket (5), and the shaft holes (7) (7) and (18) (18) are respectively inserted. Align the axes (2
2) Insert and secure with a retaining ring (29). Then, before fixing the cover (23), the lock button (1
0) is supported by the fixing bracket (5). That is, the lock button (1
The shaft pins (11) and (11) of (0) are placed on the bearings (9) and (9), and the lower end of the spring (15) is attached to the boss (14).
And a part of the antiskid rubber (28) is cut out (25).
The cover (2) is attached to the fixing bracket (5) while being pressed into the (25).
3), the shaft pins (11) and (11) and the upper end of the spring (15) are supported, and the spring (15) is compressed accordingly, the stopper (12) is pushed down, and the operation button (13) is pressed. ) Enters the through hole (26) and is pushed upward by the seesaw operation to be urged. The operation button (13) side of the lock button (10) is at its end (13).
a) hits the hole wall rear part of the operation hole (8) of the fixture (5) and restricts it from being pushed up more than necessary.

In this way, the cover (23) is fixed by covering the outer surface of the fixing bracket (5) by its own elastic deformation.
Are not exposed at both ends.

Thus, when the leg (16) is in the upright state, the insertion portion (20) is housed in the fixture (5) as shown in FIG. 1 and the hook (17) and the stopper (12). Is latched and held. At this time, the height position of the lower wall (17a) of the hook (17) and the stopper
Horizontal length of (12) (from shaft pin (11) to stopper (12)
By setting the length of the spring (15) appropriately and the strength of the spring (15), the center of the shaft pin (11) (11) (shaft support) of the lock button (10) and the stopper (12) can be adjusted. The connecting line (S) is inclined toward the stopper. And bolt (30)
Is screwed into the screw hole (6) through the screw holes (4) and (24) of the fixing bracket (5) and the cover (23).

As a result, for example, the leg (1
6) is pressed in the direction of arrow A shown in FIG.
Since the stopper (12) is inclined low toward the hook (17), the hooked state with the hook (17) is ensured. Also,
When the leg (16) is pushed in the direction of arrow B shown in FIG. 1, the front wall of the insertion portion (20) hits the cover (23), and the fixing bracket (5),
It is received by the mounting bracket (3).

When the leg (16) is bent, the operation button (13) is pressed down against the spring (15) from the state shown in FIG. 1 so that the stopper (12) and the latch (17) are locked. The state is released and the leg 16 is bent as shown in FIG. 4 by pushing the leg 16 in the direction of arrow A. This bent state is maintained by the engagement between the engaging portion (17) and the engaging portion (27), and when the leg (16) is to be brought upright again, the leg (16) is simply moved from the position shown in FIG. If the hook (17) is pulled out of the state in the upright direction and the hook (17) is disengaged from the engaging part (27) and reaches the standing position, the hook (17) pushes the stopper (12) against the spring (15). After being pushed up, it is hooked on the stopper.

Although the lock button of the present invention has been described as holding and releasing the standing state of the leg, the lock button may also have a function of retaining and releasing the bent state of the leg by the same lock button. .

[0017]

[Effects of the Invention] As described above, the present invention pivotally supports a fixing bracket and a leg fixed to the frame body side, and includes a shaft pin, a stopper, and an operation button to be mounted on a support portion of the fixing bracket. Lock button, and a cover that covers an outer surface of the fixing bracket,
Since the upright state is composed of a latch piece provided at the top and a leg that holds the stopper by latching the lock button, simply placing the lock button on the fixture, the lock button and the fixture and Are unitized to improve the assemblability, and the dimensional accuracy between the components for holding and releasing the bending can be increased. Therefore, there is no danger that the leg is suddenly bent in the standing state of the leg and hits the leg and is injured.

Further, the standing state of the leg is performed by engaging the stopper of the lock button with the engaging portion on the side of the leg. In the standing state, the line connecting the shaft support of the lock button and the stopper is connected to the stopper side. Because it was set low and inclined toward
The locking between the locking portion and the stopper is more reliable, and it is difficult for the locking portion to come off.

[Brief description of the drawings]

FIG. 1 is a sectional view of the leg device of the present invention.

FIG. 2 is a perspective view of a frame and legs.

FIG. 3 is a partially exploded perspective view.

FIG. 4 is a cross-sectional view showing a bent state of a leg.

[Explanation of symbols]

 1 Frame 3 Mounting Bracket 5 Fixing Bracket 9 Bearing 10 Lock Button 11 Shaft Pin 11 Shaft Pin 12 Stopper 13 Operation Button 15 Spring 16 Leg 23 Cover

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yasumasa Yamane 3-201 Minamiyoshikata, Tottori City, Tottori Prefecture Tottori Sanyo Electric Co., Ltd. (56) References 1-70008 (JP, U)

Claims (2)

(57) [Scope of request for utility model registration] 1. A frame, a mounting bracket fixed to an appropriate position of the frame, a fixing bracket fixed to the mounting bracket and having a support portion formed on an upper portion, and a mounting portion mounted on the supporting portion of the fixing bracket. Axial pin to be placed
A lock button provided with a stopper and an operation button , a cover covering the outer surface of the fixing bracket and facing the operation button, and a locking piece pivotally supported by the fixing bracket and provided at an upper portion, at least in an upright state And a leg that holds the stopper by locking the stopper with a latching piece . 2. The stopper is constantly depressed downward.
A spring is provided, and the cover is attached to the outer surface of the fixing bracket.
Cover and fix the shaft pin and spring.
Claims and bearing a line connecting the shaft support and Sutoppa of the locking button when the standing state engaging portion of 且 the leg is hooked to Sutoppa characterized in that the inclined lower toward the said Sutoppa side 2. The leg device according to claim 1.