JP2617877B2 - Hinge with intermediate opening retention function - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge having an intermediate opening holding function.

[0002]

2. Description of the Related Art A hinge having an intermediate opening holding function has not been known. Therefore, when it is desired to maintain the opening of a door equipped with an automatic closing device such as a door opener at an intermediate opening, for example, a wedge-shaped stopper is prepared, and this stopper is connected to the door at the intermediate opening and the floor. Relatively complicated work for interposing the gap between the surfaces is required.
In addition, the stopper is fixed at a position where pedestrians' feet or objects to be carried in / out are likely to interfere with the doors while the door is held at the intermediate opening. Therefore, pedestrian feet and
If the carried-out article interferes with the stopper, it may come out of the gap and lose the function of maintaining the intermediate opening degree, resulting in a state in which the door is inadvertently closed. This also applies when using a hinge with an automatic turning function in the closing direction instead of the door arch.

[0003]

The problem to be solved is that when it is desired to maintain the opening of the door at an intermediate opening,
A relatively complicated work is required to prepare a stopper and interpose this stopper in the gap between the door at the intermediate opening and the floor surface, and when an external load acts on the stopper, the intermediate opening holding function is lost, The door is unwillingly closed.

[0004]

According to the present invention, a pair of wing pieces having a plurality of shaft insertion portions formed at predetermined intervals in the axial direction and concentric with each other in the axial direction are provided. The hinge having the shaft insertion part of the wing piece and the support shaft inserted so as to be rotatable relative to the shaft insertion part of the other wing piece.
At least one of the pair of wing pieces, at least one of which is located outside the outer peripheral surface of the shaft insertion portion of the wing piece and extends so as to be elastically slidable on the base end face of the counterpart wing piece. An arcuate elastic piece is attached, and at least one engaging portion that engages with the base end surface of the opposing blade piece is formed on the arcuate elastic piece, which is relatively complicated compared with the related art. The task was omitted, the door was held at the intermediate opening by a simple operation, and the inconvenience of inadvertent closing due to the loss of the intermediate opening holding function was achieved.

[0005]

According to the present invention, for example, by opening the door with one wing piece attached to the door side and the other wing piece attached to the door frame side, the arcuate elastic piece becomes the other wing piece. Elastic sliding contact with the base end surface of By continuing to open the door, the base end surface of the mating wing piece engages with the engaging portion formed on the arcuate elastic piece. In this manner, by engaging the base end surface of the wing piece with the engaging portion of the arc-shaped elastic piece, the elastic sliding contact resistance between the arc-shaped elastic piece and the inner end face of the wing piece on the other side when the door is opened is reduced. Extremely large. The state where the elastic sliding contact resistance becomes extremely large is transmitted as a large load change to the hand of the operator who opens the door. By stopping the door opening operation when the large load fluctuation is recognized, the engagement between the base end surface of the wing piece and the engaging portion of the arcuate elastic piece is maintained by the urging of the arcuate elastic piece. The door can be held at an intermediate opening determined by the formation position of the joint. This holding state can be released by opening or closing the door.

[0006]

An embodiment of the present invention will be described below with reference to the drawings. 1 is a front view showing an open state, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is an enlarged cross-sectional view taken along the line AA of FIG. The reference numeral 3 denotes a support shaft, and the reference numeral 4 denotes an arc-shaped elastic piece.

Shaft insertion portions 1A and 1B are formed on the base end side of one of the blade pieces 1 at positions excluding both axial end portions and the central portion, and the shaft insertion portions 1A and 1B are formed on the base end side of the other blade piece 2. The shaft insertion portions 2A, 2B, 2C are formed at the positions at both ends and the center in the direction, and these shaft insertion portions 1A, 1B, 2A, 2B, 2
C corresponds concentrically with an inconsistency in the axial direction, and the support shaft 3 is inserted so as to be able to rotate relatively around the axis and to be incapable of relative movement in the axial direction.

The other blade 2 has a shaft insertion portion 2 of the blade 2.
Two arcuate elastic pieces 4 and 4 located outside the outer peripheral surfaces of A and 2C and extending so as to be elastically slidably contactable with the base end surface 1X of the one blade piece 1 are attached by spot welding 5, for example. . In addition, the arcuate elastic piece 4,
The attachment of the member 4 is not limited to the spot welding 5, but may be selected from known attachment means such as caulking. The arc-shaped elastic pieces 4 and 4 are made of a high-elasticity metal plate (for example, a spring steel plate), and a base portion 4A attached to the surface of the other blade piece 2 facing the one blade piece 1 by the spot welding, and the base portion 4A. And a radius of curvature of the arc portion 4B is larger than the radius of curvature of the shaft insertion portions 2A and 2C, and one of the winglets 1 rotates about the axis of the support shaft 3. Is set to be slightly larger than the radius of curvature of the locus drawn by the base end face 1X when turning. Therefore, the shaft insertion portion 2
A gap 6 is formed between the outer circumferences of A and 2C and the inner surface of the arc portion 4B, and the outer surface of the arc portion 4B is elastically expanded outward in the radial direction of the arc portion 4B so that the outer surface of the arc portion 4B is the base end surface 1X of one wing piece 1.
Is always in pressure contact with An engaging portion 7 extending in the width direction of the arc portion 4B, that is, the axial direction of the support shaft 3 is recessed at the center of the arc portion 4B in the arc direction, and a stopper 8 is bent at the tip of the arc portion 4B. Has been formed.

With such a construction, for example, as shown in FIG. 4, one wing piece 1 is attached to the door 9 side, and the other wing piece 2 is attached to the door frame 10 side. In this state, for example, the door 9 is opened against a door arch (not shown), so that the outer surface of the arc portion 4B of the arc-shaped elastic piece 4 elastically slidably contacts the base end surface 1X of the one blade piece 1. When the opening of the door 9 is continued and the base end face 1X of one of the wing pieces 1 reaches the position of the engagement part 7 formed in the arc part 4B, the base end face is urged by the arc part 4 as shown in FIG. 1X engages with the engaging portion 7. As described above, the base end face 1X of the one wing piece 1 is engaged with the engagement part 7 of the arcuate elastic piece 4, so that the elastic sliding contact resistance between the arc part 4B and the base end face 1X when the door 9 is opened. Becomes extremely large. Since the state in which the elastic sliding contact resistance becomes extremely large is transmitted to the hand of the operator who opens the door 9 as a large load change, the opening operation of the door 9 is stopped at the time when this load change is recognized, and the base end surface is stopped. 1X and the engagement portion 7 are held by the urging of the arcuate elastic pieces 4, and the door 9 is opened at the intermediate opening (opening angle 90 degrees) in FIG. Can be held.

That is, by performing an operation of opening the door 9, the base end face 1X is engaged with the engagement portion 7, and the door 9 can be held at an intermediate opening corresponding to the engagement position.
Therefore, it is possible to omit a relatively complicated operation of preparing a stopper and interposing the stopper in a gap between the door at an intermediate opening and the floor surface as in the related art. Moreover, unless the door 9 is operated in the closing direction, the intermediate opening holding function is not lost and the door 9 is not closed unintentionally.

When the door 9 is opened or closed in the state where it is held at the intermediate opening degree shown in FIG. 5, the engagement between the base end face 1X and the engaging portion 7 is released. That is, as shown in FIG. 6, the base end face 1X is opened by the opening operation.
Is in a fully opened state in which it is engaged with the stopper 8 and is brought into a fully closed state shown in FIG. 4 by a closing operation.

In the above embodiment, the wing piece 2 is located outside the outer peripheral surfaces of the shaft insertion portions 2A and 2C in the other wing piece 2 and extends to the base end face 1X of the one wing piece 1 so as to be elastically slidable. Although the description has been given with the configuration in which the two arc-shaped elastic pieces 4 and 4 are attached, the configuration in which only the one arc-shaped elastic piece 4 is attached or it is located outside the outer peripheral surface of the shaft insertion portions 2A, 2B and 2C. Thus, a configuration may be adopted in which three arc-shaped elastic pieces 4, 4, 4 that extend slidably and elastically are attached to the base end face 1 </ b> X of one wing piece 1. As shown in FIG. 7, the wing piece 1 is located outside the outer peripheral surfaces of the shaft insertion portions 1 </ b> A and 1 </ b> B of the wing piece 1, and extends so as to be elastically slidable on the base end surface 2 </ b> X of the other wing piece 2. One arcuate elastic piece 4, 4 is attached, or one of the shaft insertion portions 1A, 1B is located outside the outer peripheral surface and extends elastically slidably onto the base end surface 1X of one of the blade pieces 1. A configuration in which only one arc-shaped elastic piece 4 is attached may be used. And the structure which attached the arcuate elastic piece 4 to both the one wing piece 1 and the other wing piece 2 may be sufficient. Furthermore, the arc portion 4
Although the description has been given of the configuration in which one engaging portion 7 is formed at the center of the arcuate direction in B, the position and the number of engaging portions 7 are arbitrary. That is, the value of the intermediate opening (opening angle) can be determined by the position of the engaging portion 7, and by forming a plurality of engaging portions 7, the door 9 is held at a plurality of patterns of intermediate opening with different opening angles. be able to.

[0013]

As described above, according to the present invention, by performing the operation of opening the door, the base end face of the mating member engages with the engaging portion of the arcuate elastic piece, and the intermediate position corresponding to the engaging position. The door can be held at the opening. Therefore, it is possible to omit a relatively complicated operation of preparing a stopper and interposing the stopper in a gap between the door at an intermediate opening and the floor surface as in the related art. Moreover, unless the door is operated in the closing direction, the door is not inadvertently closed due to the loss of the intermediate opening holding function.

[Brief description of the drawings]

FIG. 1 is a front view showing an open state of an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is an enlarged sectional view taken along line AA of FIG. 1;

FIG. 4 is a plan view showing a fully closed state of the door.

FIG. 5 is a plan view showing a state in which the door is held at an intermediate opening degree.

FIG. 6 is a plan view showing a fully opened state of the door.

FIG. 7 is a front view showing an open state of a modified example.

[Explanation of symbols]

 1 One blade piece 1A Shaft insertion portion 1B Shaft insertion portion 1X Base end surface 2 Other blade piece 2A Shaft insertion portion 2B Shaft insertion portion 2C Shaft insertion portion 2X Base end surface 3 Spindle 4 Arc-shaped elastic piece 7 Engagement portion

Claims (1)

(57) [Claims] 1. A pair of blades having a plurality of shaft insertion portions formed at predetermined intervals in the axial direction, and a shaft insertion portion of one blade piece that is concentric with the axial displacement. A hinge having a shaft inserted so as to be relatively rotatable about an axis with respect to the shaft insertion portion of the other wing piece, wherein at least one of the pair of wing pieces is provided with the wing piece; At least one arc-shaped elastic piece, which is located outside the outer peripheral surface of the shaft insertion portion and extends so as to be elastically slidably contactable with the base end surface of the mating blade, is attached to the arc-shaped elastic piece. A hinge having an intermediate opening holding function, characterized in that at least one engaging portion that engages with the base end surface of the piece is formed.