JPH0234380Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a stay that can hold a door at two different opening angle positions, wide and narrow.
To provide a stay with a simple structure that doubles as a stay for a machine and provides it for the convenience of a user, and also allows the number of models to be reduced and the storage space to be halved.

Embodiments of the present invention will be described below with reference to the figures. The first arm 1 is composed of two parallel strip plates 1a and 1b. The bent band-shaped second arm is formed by two band plates 1a and 1b so as to intersect with the first arm.
The first arm 1 is sandwiched between the first arm 1 and the second arm 1, and is connected to the first arm 1 by a pivot 3 at the intersection so as to be relatively rotatable.

The first arm 1 is provided with a first guide elongated hole 4 in the longitudinal direction at a portion closer to the proximal end than the pivot shaft 3, and a cross plate-shaped first lock body 5 is fitted into the first guide hole 4 so as to be movable in the longitudinal direction. ing. The first lock body 5 is a belt plate 1
A push spring 6 with one end fixed between a and 1b
As a result, the first arm is always biased toward the tip end.

The second arm 2 is also provided with a second guide elongated hole 7 in the longitudinal direction at a portion closer to the proximal end than the pivot shaft 3, and a second lock body 8 is fitted into the second guide hole 7 so as to be movable in the longitudinal direction. The second lock body 8 is formed by a push spring 9 whose one end is locked on the front and back sides of the second arm 2, respectively.
a, 9b, and is always biased toward the tip of the second arm 2.

At the tip of the first arm 1, a first pressing portion contacts the second lock body 8 of the second arm 2 and pushes it back toward the proximal end at a predetermined position when the first arm 1 rotates relative to the pivot 3. 10, and a first receiving groove 11 that can be freely engaged with and detached from the second lock body 8.

On the other hand, at the tip of the second arm 2, the first arm of the first arm 1 is attached at a predetermined position during relative rotation about the pivot
The second part contacts the lock body 5 and pushes it back toward the proximal end.
A pressing portion 12 and a second receiving groove 13 that can be freely engaged with and disengaged from the first lock body 5 are provided.

The second arm 2 is bent so that a portion on the distal side of the pivot shaft 3 is inclined with respect to a portion on the proximal end side of the pivot shaft 3, and the second arm 2 is bent such that the portion on the distal side of the pivot shaft 3 is inclined with respect to the portion on the proximal end side of the pivot shaft 3, and the first receiving groove 11 and the second lock body 8
The mutual angular position of the first arm 1 and the second arm 2 when they engage is the mutual angular position of the first arm 1 and the second arm when the second receiving groove 13 and the first lock body 5 engage. It is different from That is, the second receiving groove 13 and the first lock body 5 engage with each other at a relatively small angular position between the first arm 1 and the second arm 2 (Fig. 3), and the first receiving groove 11 and the second The lock body 8 engages with the first arm 1 and the second arm 2 at a relatively large angular position (FIG. 4).

A fitting 15 is connected to the base end of the first arm 1 by a pivot 14, and another fitting 17 is connected to the base end of the second arm 2 by a pivot 16. And, the stay is attached to these mounting brackets 15, 1
7, it is attached to the door 18 and door frame 19 as shown in FIG.

Next, the effect will be explained. When opening the door 18,
The first arm 1 and the second arm 2 rotate relative to each other around the pivot 3, but during opening, the tip end pressing portion 12 of the second arm 2 at a predetermined opening angle position
comes into contact with the first lock body 5 and moves it backward toward the proximal end against the push spring 6. As the relative rotation of the second arm 2 further progresses, the second receiving groove 13 becomes the first receiving groove.
When it comes to the position facing the lock body 5, the push spring 6
Due to the restoring force, the first lock body 5 moves forward in the direction of the arm tip and engages with the second receiving groove 13. In this state, mutual rotation of the first arm 1 and the second arm 2 is prevented, and the door 18 is fixed to the door frame 19 while maintaining a predetermined opening angle. When closing the door 18 or opening it further, the first lock body 5 is moved back toward the base end of the arm using its protrusions on both sides as cues, and released from the second receiving groove 13. good. The door 18 is opened even wider, and the first
When arm 1 and second arm 2 have relatively rotated and come to a larger predetermined relative angle position, this time, the first
The receiving groove 11 engages with the second lock body 8, and the arm 1,
Prevents relative rotation of 2. The door 18 is thus held in a greater open angular position than previously.
As in the previous case, the door 18 is released by moving the second lock body 8 backward and disengaging it from the first receiving groove 11.

As described above, in the present invention, the first arm 1 and the second arm 2 which cross each other are rotatably connected by the pivot shaft 3, and the first guide slot 4 is provided in the first arm 1 at a position higher than the pivot shaft 3. The second arm 2 is provided with a second guide elongated hole 7 in the longitudinal direction in a region proximal to the pivot 3, and the first guide elongated hole 4 is provided with a first guide elongated hole 7 in the longitudinal direction. Insert the lock body 5 into the first arm 1
The second lock body 8 is fitted into the second guide elongated hole 7 to urge the second arm 2 toward the distal end.
A first pressing part 8 that pushes back the second lock body 8 toward the base end of the second arm 2 during rotation; A receiving groove 11 is provided, and a second arm 2 is provided.
At the tip thereof, there is a second pressing part 12 that pushes back the first lock body 5 toward the proximal end of the first arm 1 during rotation, and a second pressing part 12 that engages and disengages from the first lock body 5 at a predetermined large angle position with respect to the first arm 1. Since the possible second receiving groove 13 is provided, the first arm 1 and the second arm 2 can be moved at two different mutual angular positions, large and small.
The arms 2 can be fixed together to hold the door 18 in two different open angular positions. In this way, with the present invention, one model can hold the doors at two different opening angles, reducing the number of models and halving the storage space, and the simple structure makes it easy to manufacture. It can be obtained at low cost, has few failures, and operates stably.

Note that the present invention is not limited to the illustrated embodiment. For example, first arm 1 and second arm 2
The structure can be reversed and other structures can be selected. Furthermore, the shapes of the lock bodies 5, 8 and their biasing means can be easily changed.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a variable opening angle type fixed stay for a door according to an embodiment of the present invention, showing a state in which the door is in the middle of opening. FIG. 2 is an exploded perspective view of the fixed stay. FIG. 3 is a front view of the fixed stay when the door is held in a predetermined open state. FIG. 4 is a front view of the fixed stay when the door is held at a wider opening angle than the state shown in FIG. 1...First arm, 2...Second arm, 3...
Pivot, 4...First guide slot, 5...First lock body, 6...Press spring, 7...Second guide slot, 8...
Second lock body, 9... Pressing spring, 10... First pressing part, 11... First receiving groove, 12... Second pressing part, 1
3...Second receiving groove, 18...Door, 19...Door frame.

Claims (1)

[Scope of utility model registration request] A first arm and a second arm that intersect with each other are rotatably connected by a pivot, the first arm is provided with a first guide elongated hole in a portion on the proximal end side of the pivot, and the second arm is provided with a first guide slot in the longitudinal direction. A second guide elongated hole is provided in the longitudinal direction at a portion on the proximal end side of the pivot shaft, and a first lock body is fitted into the first guide elongated hole to bias the first arm toward the distal end. A second lock body is fitted into the guide elongated hole to urge the second arm toward the distal end, and a second lock body is fitted at the distal end of the first arm to push the second lock body back toward the proximal end of the second arm when the second arm rotates. A first pressing portion and a first receiving groove that can be engaged with and disengaged from the second lock body at a predetermined small angle position with respect to the second arm are provided, and the tip of the second arm is provided with a first receiving groove that engages and disengages the second lock body at a predetermined small angle position with respect to the second arm. at a predetermined large angular position between the second pressing part that pushes back the first arm toward the proximal end of the first arm, and the first arm.
A variable opening angle fixed stay for a door that is provided with a lock body and a second removable receiving groove.