JP2744930B2 - Opening and closing stay - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable body such as a door or a lid that opens and closes by turning,
The present invention relates to a stay that can be kept open.

[0002]

2. Description of the Related Art Various types of stays of this type are conventionally known. One of them is a first arm which is fixed to one of an immovable body (for example, a housing) and a movable body (for example, a lid) which constitutes an opening / closing body, and the other end is rotatably supported at a first end. And a second arm having a second end opposite to the first end slidably engaged with a longitudinal guide groove of the first arm. In this stay, when the movable body is opened by a required angle, the sliding member provided at the second end of the second arm moves to the engaging recess provided alongside the guide groove of the first arm, thereby coming off the guide groove and closing there. Sliding in the direction is suppressed, and the movable body can be kept open. In order to close the movable body, it is sufficient to slightly move the movable body once in the opening direction. Then, the sliding member returns to the guide groove from the concave portion and becomes slidable again.

[0003]

When the movable body using the stay of the above-mentioned mechanism is blown by the wind when it is in the open state, the sliding portion of the second arm returns to the guide groove from the engagement recess, and
There is a problem in that the movable body moves in the closing direction without permission of the operator. For example, when the opening and closing body is used outdoors and the movable body is opened by turning upward from below, the opened movable body is closed by the wind by the wind, that is, in a downward direction. Turns, it may hit the operator unexpectedly. Therefore, there is a problem that this type of stay lacks safety depending on the use.

Therefore, the present invention connects a lock member which can be engaged with a sliding member of a movable arm to suppress its movement, and an operation lever member which is located at a position separated from the lock member, and connects the lever member. An object of the present invention is to solve the above-described problem by enabling the lock member to be disengaged only when operated.

[0005]

Means for solving the above problems The present invention is as follows to solve the above problems.

According to the present invention, a first arm fixed to one of an opening and closing body formed by hingedly engaging a base end of a movable body with a base end of an immovable body, and a first end rotatable with the other end. A second arm having a second end opposed to the first end and a second arm slidably engaged with a longitudinal guide portion of the first arm between both ends of the guide portion; The opening / closing stay provided on the first arm is provided with a locking means that acts on the second end when the opening is opened at a required angle to prevent the sliding.

[0007] Under such a premise, the front end where the second end is located when the movable body is closed at the guide portion of the first arm and the rear end where the movable body is opened at a required angle are defined. An operating lever member rotatably supported near the front end and a second end positioned at the rear end by rotating clockwise under the action of an urging spring. A lock member rotatably supported in the vicinity of the rear end portion capable of suppressing the sliding of the second end, and both ends of the lock member rotatably supported by the operation lever member and the lock member, respectively. This is a feature of the present invention in that the operating lever member is configured to be urged counterclockwise under the action of the urging spring.

[0008]

In the opening / closing stay configured as described above,
When the movable body is opened, the second end of the second arm slides from the front end to the rear end of the first arm, and the locking member is engaged at the rear end to keep the movable body open. Can be held. Next, when the operating lever is turned clockwise, the lock member is turned counterclockwise through the connecting member to disengage the second end, and the second end slides toward the front end of the first arm. It becomes possible to close the movable body.
The opened movable body does not close unless the operating lever is moved to disengage the lock member.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of an opening / closing stay according to the present invention will be described below with reference to the accompanying drawings.

FIGS. 1 and 2 are a right side view and a left side view, respectively, showing a stay 5 attached to an opening / closing body 3 comprising a housing 1 and a lid 2 with a part thereof broken away. It is open.

FIGS. 3, 4 and 5 show AA and B in FIG.
FIG. 4 is a view taken along arrows B and C-C, and a part of the movable arm 6 is omitted in FIG. 3.

FIG. 6 shows the right side of the stay 5 when the lid 2 is open and stationary.

In FIG. 1 to FIG.
And a fixed arm 7 attached to the lid 2 which is a movable member of the opening / closing body 3, and the movable arm 6 is provided as described later. It is slidably mounted on the fixed arm 7.

In the opening / closing body 3, the lid 2 is a general term for a thing including a door, which turns and opens and closes, and its rear edge 2B is pivotally attached to the housing 1 via a hinge 8 (see FIG. 6). It can be opened and closed by holding the front edge 2A by hand.

The fixed arm 7 includes front and rear edges 2A, 2A of the lid 2.
B, an arm body 10 having a front end 11, a rear end 12, and an intermediate portion 13 between both ends, an operation lever member 14 provided at the front end 11, and a rear end 1.
2 has a lock member 15 and a connecting member 16 that connects the lever member 14 and the lock member 15. Body 10
Consists of a flat plate-like side wall 17 and a top wall 18 whose upper part is bent at a right angle.
9 is fixed to the inner surface of the lid 2. A guide hole 9 for the movable arm 6 extends in the side wall portion 17 in the longitudinal direction. The lever member 14 has an L-shaped or V-shaped side surface.
It is shaped like a letter and is rotatably attached to the side wall 17 via a pin 21 inserted in the middle. One end of the lever member 14 is an operation unit 14A to which a fingertip is applied, and the other end is a pin 2
Connecting portion 1 that rotatably supports connecting member 16 through connection member 2
4B. The fixed arm 7 and the lever member 14 each have a downward U-shaped portion as seen in the direction of the arrows BB in FIG. 1 (FIG. 4), and the pins 21 face left and right of the portion. Through each of the side walls. Lock member 15
2 and 3, is made of a plate-like material parallel to the side wall portion 17, and the rear end portion 15B is rotatably attached to the side wall portion 17 via the pin 24, and is hung on the pin 24. It is urged clockwise in FIG. 1 by the turned coil spring 26. The front end 15A of the lock member 15 has a hook shape and straddles the guide hole 9 in the width direction near the rear end. The front edge 28 of the front end 15 </ b> A is inclined so as to have a downward slope from the rear end 12 of the main body 10 toward the front end 11, and the rear edge 29.
Intersects the guide hole 9 at a substantially right angle. The lower edge of the front end portion 15A is bent 90 ° toward the side wall portion 17 to form a stopper 31 which can abut against the lower edge 30 of the side wall portion 17 from below to stop the lock member 15 from turning clockwise. It is. A pin 33 is provided near the upper edge 32 of the rear end 15B of the lock member 15.
Is attached and inserted into a small elongated hole 34 provided in the side wall portion 17, a rear end portion 16B of the connecting member 16 is rotatably attached to the tip end thereof, and an E-ring 33A is fitted to prevent the rear end portion 16B from coming off. (See FIG. 1). The connecting member 16 is located on the right side of the fixed arm 7, and as described above, the pins 22, 33 are provided.
Are rotatably attached to the lever member 14 and the lock member 15 via the. The flat shape of the lock member 15 is formed into a U-shape by bending the rear end portion 15B as shown in FIG.
D also penetrates. Although not described in detail, one of the free ends of the spring 26 is hooked on the U-shaped rear portion 15C, and the other of the free ends is hooked on the rear edge of the side wall portion 17. is there.

The movable arm 6 has a roller 36 rotatably attached to a distal end portion 6 A via a pin 35, and can slide inside the guide hole 9. The roller 36 has a cylindrical shape,
A pair of large-diameter portions 37 larger than the width of the guide hole 9 and a small-diameter portion 38 interposed therebetween having a diameter smaller than the width of the guide hole 9 and a length slightly larger than the thickness of the side wall portion 17; By sandwiching the side wall portion 17 between the pair of large diameter portions 37, the large diameter portion 37 does not fall out of the guide hole 9. Movable arm 6
The rear end 6B is pivotally attached to the housing 1 via the pin 40 and the bracket 41.

FIG. 6 is a right side view of the stay 5 when the cover 2 in the state of FIG. 1 is opened at a required angle. When the lid 2 is further opened in FIG. 1, the roller 36 slides in the guide hole 9 toward the rear end 9 </ b> B, and the inclined front edge 28 of the lock member 15.
Abut. When the lid 2 is further opened, the roller 36 rotates the lock member 15 counterclockwise to retreat from the guide hole 9, and
Fits in rear end 9B. At the same time, the roller 36 separates from the lock member 15, the member 15 turns clockwise again, and the stopper 31 comes into contact with the lower edge 30 of the side wall portion 17 and stops, and the state shown in FIG. 6 is obtained. Roller 36 at rear end 9B
Cannot be returned to the front end portion 9A of the guide hole 9 because of being blocked by the lock member 15, so that the lid 2 remains open.

In FIG. 6, to close the lid 2, the lever member 14 is turned clockwise in accordance with the arrow P with a finger on the operating portion 14A, and the connecting member 16 is moved in the direction of the arrow Q to lock the lever member 14. 15 turns counterclockwise as indicated by arrow R, and the tip 15A of the member 15 retreats from the guide hole 9.
Therefore, the roller 36 can slide forward, and the lid 2 can be closed. When the finger is released from the operation portion 14A, the lever member 14 turns counterclockwise by the action of the coil spring 26 through the movement of the lock member 15 and the connecting member 16.

[0019]

According to the stay of the present invention, when the movable body is opened, the sliding of the movable arm is locked by a spring-biased member provided on the fixed arm. It will not close unless you unlock it,
It does not close unexpectedly against the will of the person. Therefore, the opening / closing body using this stay has high safety. In addition, since the operation lever for releasing the lock is provided near the free turning end of the movable body, which is in front of the opening / closing body, the operation is extremely convenient.

[Brief description of the drawings]

FIG. 1 is a partially broken right side view of a stay attached to an opening / closing body.

FIG. 2 is a left side view of the stay of FIG. 1;

FIG. 3 is a view taken along line AA of FIG. 1 with a part of a movable arm omitted.

FIG. 4 is a view taken along line BB of FIG. 1;

FIG. 5 is a view taken along line CC in FIG. 1;

FIG. 6 is a right side view of the stay with the lid opened.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Immovable body (casing) 2 Movable body (lid or door) 3 Opening / closing body 5 Stay 6 2nd arm (movable arm) 7 1st arm (fixed arm) 9 Guide part (guide groove) 9A Front end 9B Rear end 14 Operating lever member 15 Lock member 16 Connecting member 26 Spring

Claims (2)

(57) [Claims] A first arm fixed to one of an opening and closing body formed by hingedly connecting a base end of a movable body to a base end of an immovable body, and a first end rotatably supported by the other end so as to be rotatable; A second end opposed to the first end is constituted by a second arm slidably engaged with a longitudinal guide portion of the first arm between both ends of the guide portion, and the movable body is opened at a required angle. When the second
In the opening / closing stay provided on the first arm with a lock means acting on an end to prevent the sliding thereof, the second end is located when the movable body is closed at a guide portion of the first arm. A front end portion, a rear end portion which is located when the movable body is opened by a required angle, an operation lever member rotatably supporting the lock means near the front end portion, and an action of an urging spring A lock member pivoted clockwise downward to engage with a second end located at the rear end portion and rotatably supported in the vicinity of the rear end portion capable of suppressing sliding of the second end; A connecting member which is rotatably supported at both ends by the operation lever member and the lock member, and which can urge the operation lever member counterclockwise under the action of the urging spring; The stay is constituted by: 2. The opening / closing stay according to claim 1, wherein the operating lever member is disposed near a free end of the movable body located on a side opposite to a base end of the opening / closing body.