JP4129960B2 - Stay - Google Patents

Description

The present invention relates to a stay capable of fixing and holding a wing body such as a door or a lid with respect to a fixed frame body such as a building main body or a box main body in a predetermined open state.

As a stay , a guide hole is provided in the side wall portion of the support cylinder in a diametrical direction, an arm is slidably fitted into the guide hole, and a first bracket is connected to the tip of the arm by a first pivot, A second bracket is connected to the base end portion of the support cylinder by a second pivot, and a lock disk is slidably fitted into the support cylinder on the rear side of the arm, and between the bottom wall of the support cylinder and the lock disk. The lock plate is slid forward and urged by a compression coil spring housed in the lock plate, and a locking recess for engaging and disengaging a stop projection provided on the front surface of the lock plate is provided on the rear abdominal surface of the arm. The operation button is fitted into the support cylinder, the leg of the operation button straddling the arm is brought into contact with the front surface of the lock plate, and the cap is fixed to the front end of the support cylinder through the through hole of the cap. That is projected a pressing portion of the work button has been known (see Patent Document 1).

In this stay , when the first bracket is fixed to the wing body and the second bracket is fixed to the fixed frame body, when the wing body rotates open about the hinge shaft, the arm is centered on the first pivot axis. While rotating with respect to the wing body, the support cylinder rotates with respect to the fixed frame body around the second pivot, and the arm moves in the transverse direction of the support cylinder.

During this rotation operation, the upper end surface of the stop projection of the lock plate is in sliding contact with the belly surface of the arm,
When the wing body rotates to a predetermined angle, the stop projection of the lock plate automatically engages with the locking recess of the arm by the bias of the compression coil spring, and the engagement is accurately maintained.
Therefore, the wing body is fixedly held at a predetermined open position.

To close the wing body, the pressing portion of the operation button is pressed, and the lock plate is pushed down by the leg portion of the operation button, whereby the stop protrusion of the lock plate is released from the locking recess of the arm. Thereafter, when the wing body rotates closed about the hinge axis, the arm rotates relative to the wing body about the first pivot axis 4 as described above, while the support tube is fixed to the fixed frame about the second pivot axis. The arm rotates in relation to the body and moves in the transverse direction of the support tube.

The finger is released from the pressing portion of the operation button when the wing body rotates slightly and the stop projection of the lock plate moves to a position where it does not face the locking recess of the arm. During the subsequent rotation operation, the stop protrusion slides on the abdominal surface of the arm, and the wing body is fully closed.

However, with this stay , in order to unlock the wing body, it is necessary to press the pressing part of the operation button located in a specific place, but the field of view of the feet is limited by holding a load on the chest. It is difficult to find the position of the operation button, and it often takes time for the release operation.

Japanese Utility Model Publication No. 6-40815

An object of the present invention is to provide a stay that is excellent in operability because the lock can always be released by pressing somewhere on the long arm instead of pressing one specified operation button. That is.

A feature of the present invention is that a slot 2 is vertically formed through a required length from one end of a long arm 1 and the diameter of the slot 2 is larger than the width of the slot 2 at one end. A stop hole 3 is formed through the top and bottom, a shaft hole 4 is formed through the top and bottom of the other end of the arm 1, and the first bracket 7 is fixed to one of the fixed frame 5 or the wing body 6. A first shaft 8 is formed by connecting a large-diameter shaft portion 9 that is movably fitted in the locking hole 3 and a small-diameter shaft portion 10 that is movably fitted in the slot 2. The retaining portion 11 is formed on the upper side of the large-diameter shaft portion 9 so as to prevent the first pivot shaft 8 from coming out of the locking hole 3, and the first pivot shaft is interposed between the first bracket 7 and the arm 1. The arm 1 is pushed up and biased upward by the spring member 12 fitted to 8, and the arm 1 is moved to the second position by the second pivot 13 passing through the shaft hole 4. And pivotally connected to the racket 14, the second bracket 14 fixed to the other of the fixed frame 5 or wings body 6, the large-diameter shaft portion 9 of the first pivot 8 is engaged with the Jotomeana third arm 1 Wing In the stay that is fixedly held in the open position of the body 6,
The second pivot shaft 13 passed through the shaft hole 4 of the arm 1 and the shaft hole 19 of the second bracket 14 is a spacer.
The lower end of the arm 1 is fixed by caulking so that the arm 1 can be swung slightly up and down via -20.
Is Rukoto.

In the stay of the present invention, the second pivot shaft 13 passed through the shaft hole 4 of the arm 1 and the shaft hole 19 of the second bracket 14 has a lower end portion so that the arm 1 can be swung slightly up and down via the spacer 20. Is fixed by caulking, so that by pushing somewhere on the long arm 1 with the toe of the foot or the tip of the shoe and pushing down one end side of the arm 1 against the push-up bias of the spring member 12, The engagement between the large-diameter shaft portion 9 of the single pivot 8 and the locking hole 3 of the arm 1 is released, and the small-diameter shaft portion 10 of the first pivot 8 comes to a position facing the inlet portion of the slot 2 of the arm 1. For this reason, even when the field of view of the foot is narrow, such as holding a load at the chest, the unlocking of the arm 1 with respect to the first bracket 7 can be always performed, and the operability is greatly improved.

In the embodiment shown in FIGS. 1 to 3, the web piece 15 of the arm 1 having a U-shaped cross section made of a metal plate material has a slot 2 at the center of the width over the length of about one third of the entire length. It is formed in the length direction. The second bracket 14 made of a metal plate and having an L-shaped cross section is fixed to the fixed frame 5 side by a fixing tool such as a screw passing through the mounting hole 17 of the vertical blade piece 16. A shaft hole 19 through which the second pivot 13 made of a metal material is passed is formed in the horizontal blade piece 18 of the second bracket 14.
The second pivot shaft 13 passed through the shaft hole 4 of the arm 1 and the shaft hole 19 of the second bracket 15 has its lower end portion swaged and fixed so that the arm 1 can be swung slightly up and down via the spacer 20. Yes.

In the first bracket 7 made of a metal plate material, a shaft hole 22 is formed in the intermediate raised portion 21, and the lower end portion of the first pivot 8 made of a metal material is passed through the shaft hole 22 and fixed by caulking. A metal guide tube 23 and a metal spring receiving tube 24 are fitted to the first pivot 8. A compression coil spring is used as the spring member 12, the lower end portion of the spring member 12 is fitted outside the guide tube 23, and the upper end portion of the spring member 12 presses the bottom wall 25 of the spring receiving tube 24, The cylinder 24 is in contact with the lower surface of the arm 1. The first bracket 7 is fixed to the wing body 6 by a fixing tool such as a screw passing through the mounting holes 27 of the flat portions 26 on both sides.

In the above usage pattern, when the wing body 6 is in the closed position, the small-diameter shaft portion 10 of the first pivot 8 is engaged with a predetermined portion of the slot 2 of the arm 1.
When the wing body 6 rotates open about the hinge shaft 28, the arm 1 pulled by the first pivot 8 rotates with respect to the fixed frame 5 around the second pivot 13, and follows this rotation. The small-diameter shaft portion 10 of the single pivot 8 moves in the slot 2 toward the lock hole 3.
At this time, the spring member 12 is compressed and deformed to the maximum, and the large-diameter shaft portion 9 of the first pivot 8 protrudes toward the upper surface side of the arm 1, and the shoulder portion of the step between the large-diameter shaft portion 9 and the small-diameter shaft portion 10. Is in contact with the upper surface of the edge of the slot 2.

When the wing body 6 rotates open to a predetermined angle and the small-diameter shaft portion 10 of the first pivot 8 enters the lock hole 3 of the arm 1, the arm 1 is pushed up by the bias of the spring member 12, and the first pivot 8 The large-diameter shaft portion 9 engages with the lock hole 3 of the arm 1. As a result, the position of the arm 1 is fixed with respect to the first bracket 7, and the wing body 6 is fixedly held at the open position.

In order to close and rotate the wing body 6, it is only necessary to push somewhere on the upper surface of the long arm 1 with a toe or shoe tip of the foot and push down the arm 1 against the bias of the spring member 12. By this pressing operation, the engagement between the large-diameter shaft portion 9 of the first pivot 8 and the lock hole 3 of the arm 1 is released, and the first
The small-diameter shaft portion 10 of the pivot 8 comes to a position facing the inlet portion of the slot 2.
Thereafter, when the wing body 6 is closed and rotated about the hinge shaft 28, the arm 1 is rotated with respect to the fixed frame body 5 about the second pivot shaft 13, while the small-diameter shaft portion 10 of the first pivot shaft 8 is the arm 1. Slot 2 of
The inside moves toward the other end of the arm 2.

When one or more locking holes 3 are provided in the middle of the slot 2 of the arm 1 as in another embodiment shown in FIG. 4, the large-diameter shaft portion 9 of the first pivot 8 is engaged. By appropriately selecting the locking hole 3 to be operated, the wing body 6 is fixedly held at a plurality of opening positions with different opening angles.

The opening angle of the wing body 6 can be changed as appropriate by changing the length of the arm 1, the position where the locking hole 3 is formed, the setting position of the first pivot 8, the setting position of the second pivot 13, and the like.

It is a top view of the stay which concerns on one Example of this invention. It is a left view of the stay of FIG. 1, and has shown the part of the 1st axis | shaft pin with the notch sectional drawing. It is a top view which shows the use condition of the stay of FIG. It is a top view which shows the use condition in another Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Arm 2 Groove hole 3 Locking hole 4 Arm shaft hole 5 Fixed frame body 6 Wing body 7 1st bracket 8 1st pivot 9 Large diameter shaft 10 of the 1st pivot Small diameter shaft 11 of the 1st pivot 11 1st pivot Spring member 13 Second pivot 14 Second bracket 15 Arm web piece 16 Second bracket vertical wing piece 17 Vertical piece mounting hole 18 Second bracket horizontal piece 19 Horizontal piece Shaft hole 20 Spacer 21 Middle raised portion 22 of the first bracket Shaft hole 23 of the raised portion Guide tube 24 Spring receiving tube 25 Bottom wall 26 of the spring receiving tube Both side flat portions 27 of the first bracket Both side flat portion mounting holes 28 Hinge axis

Claims (1)

A slot 2 is formed so as to penetrate vertically from one end of the long arm 1 to a required length, and a locking hole 3 having a diameter larger than the width of the slot 2 is vertically formed at one end of the slot 2. The first pivot 8 is formed upright on the first bracket 7 fixed to one of the fixed frame body 5 and the wing body 6. A large-diameter shaft portion 9 that is movably fitted in the locking hole 3 and a small-diameter shaft portion 10 that is movably fitted in the slot 2 are formed vertically on the first pivot shaft 8; A spring member that is formed on the upper side of the large-diameter shaft portion 9 to prevent the first pivot shaft 8 from escaping from the locking hole 3 and is fitted to the first pivot shaft 8 between the first bracket 7 and the arm 1. 12
The arm 1 is pushed upward to be biased by the second pivot shaft 13 passing through the shaft hole 4, and the arm 1 is pivotally attached to the second bracket 14. The second bracket 14 is fixed to the fixed frame body 5 or the wing body 6.
In the stay fixed to the open position of the wing body 6 by engaging the large-diameter shaft portion 9 of the first pivot 8 with the locking hole 3 of the arm 1 ,
The second pivot shaft 13 passed through the shaft hole 4 of the arm 1 and the shaft hole 19 of the second bracket 14 is a spacer.
The lower end of the arm 1 is fixed by caulking so that the arm 1 can be swung slightly up and down via -20.
Stay characterized by that.

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