JPH0524848U - Fixed stay device - Google Patents

Abstract

(57) [Abstract] [Purpose] The structural strength is high because there is no distortion of the lock plate, the sliding guide of the lock plate is accurate, and the fingertips and peripheral objects are sandwiched by the sliding bias springs of the lock plate. (EN) Provided is a fixed stay device which can be safely used without danger. [Structure] A left side wall plate portion 11 of a lock case 11 in which a first arm 1 made of a flat bar is slidably fitted in a second arm 2 made of a square pipe and fitted and fixed to the second arm 2.
The lock plate 9 is inserted in the guide hole 23 of c and the receiving hole 8b of the second arm 2.
Is slidably inserted, and the locking projection 10 that engages and disengages with the notch 7 of the first arm 1 is cut and raised in the lock plate 9, and the lock case 11 is provided with the expansion and contraction cavity portion 18 of the bamboo spring 12. Bamboo child spring 12 housed in opening 13 of 9 is fitted to rightward projection 15, and small-diameter end 12 of bamboo child spring 12 is inserted.
a is brought into contact with the left side edge surface 14 of the opening 13, and the large diameter end 1
2b is brought into contact with the left side wall plate portion 2c of the second arm 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fixed stay device capable of fixedly holding a wing body such as a door or a lid to a fixed frame body such as a building body or a box body in a predetermined opened state.

[0002]

[Prior Art]

 In the conventional fixed type stay device disclosed in Japanese Utility Model Publication No. 55-10532, the second arm 2 is fitted between the two first arms 1 and the second arm is slightly closer to the middle part than the tip part. At the position, the first arm is pivotally connected to the distal end of the first arm, the first arm is provided with a slot in the longitudinal direction at a position closer to the middle portion, and the second arm is provided with a receiving groove in the longitudinal direction at the distal end thereof. A cross-shaped lock plate that engages and disengages with the groove is fitted into the slot, and between the pair of spring receiving end portions of the lock plate protruding from the slot and the spring receiving portion cut and raised on the abdominal surface of the first arm, Two tension coil springs are stretched across the front and back to bias the lock plate toward the receiving groove.

In this fixed type stay device, when the wing body is opened to a predetermined angle, the lock plate is engaged with the receiving groove by the bias of the tension coil spring and is fixedly held in the open state. However, in actual use, the long tension coil springs on the front and back exposed from the abdominal surface of the first arm are an obstacle, and there was a risk of pinching the fingertips and peripheral objects.

Furthermore, in this fixed type stay device, when a force in the closing direction acts on the wing body due to wind pressure or the like, the lock plate engaged with the receiving groove of the second arm bends in the plate thickness direction. The force is applied, which may lead to the distortion and deformation of the lock plate.

[0005]

[Problems to be solved by the device]

 Therefore, an object of the present invention is to accurately guide the sliding motion of the lock plate between the first arm and the second arm, and to safely operate without the risk of a fingertip or a peripheral object being caught in the sliding bias spring of the lock plate. (EN) It is possible to provide a fixed stay device which can be used and has high structural strength without distortion of a lock plate.

[0006]

[Means for achieving the object]

 In the fixed stay device of the present invention, the first arm 1 made of a flat bar is slidably fitted into the second arm 2 made of a square pipe to make the first arm slidable. The first bracket 3 is connected to the tip end of the first arm 3 by the pivot 4, the second bracket 5 is connected to the base end of the second arm 2 by the pivot 6, and the notch 7 is provided on the right end surface 1a of the first arm 1. , The receiving holes 8a, 8b are provided in the transverse direction at the tips of the left and right side wall plate portions 2c, 2d of the second arm 2, and the lock case 11 is fitted to the second arm 2 at the position where the receiving holes 8a, 8b are located. The front side wall plate part 11a, the rear side wall plate part 11b and the left side wall plate part 11c of the lock case 11 are fixed to fix the front side wall plate part 2a, the rear side wall plate part 2b and the left side wall plate part 2c of the second arm 2. Covered, left side of rock case 11 Writing order fit the inner surface protrusion 21 of the plate portion 11c to the second said receiving hole 8a of the arm 2.

The lock plate 9 is slidably inserted into the guide hole 23 penetrating the left side wall plate portion 11 c of the lock case 11 and the inner surface projection 21 and the receiving hole 8 b of the second arm 2, and the lock plate 9 is inserted. It is arranged on the front side of the first arm 1, engages with and disengages from the notch 7, and cuts the locking projection 10 which comes into contact with and separates from the right side wall plate portion 2d of the second arm 2 toward the right end portion of the lock plate 9. Then, the left side wall plate portion 11c of the lock case 11 and the inner surface projection 21 are aligned with the guide hole 23 to provide a cavity 18 for expansion and contraction of the bamboo spring 12, and the bamboo spring 12 is attached to the left half of the lock plate 9. An opening 13 for accommodating is provided, a rightward projection 15 is provided at the center of the left edge surface 14 of the opening 13, and the small diameter end 12a of the bamboo child spring 12 fitted and supported by the rightward projection 15 is opened. Abut the left edge 14 of the part 13 to remove the bamboo shoot The large-diameter end portion 12b of the groove 12 is brought into contact with the left side wall plate portion 2c of the second arm 2.

In another embodiment, in the fixed stay device, a plurality of notches 7 are provided in the right end surface 1a of the first arm 1 along the length direction.

[0009]

[Action]

 In one usage mode of this fixed stay device, the first bracket 3 is fixed to the wing body 16 and the second bracket 5 is fixed to the fixed frame body 17. When the wing body 16 is opened and rotated about the hinge axis (not shown), the first arm 1 rotates about the pivot axis 4 with respect to the wing body 16, while the second arm 2 rotates about the pivot axis 6. The first arm 1 is pulled out from the second arm 2 by rotating with respect to the fixed frame body 17.

During this rotation operation, the abdominal surface 10 a of the locking projection 10 of the lock plate 9 is in sliding contact with the right side end surface 1 a of the first arm 1. When the wing body 16 is rotated to a predetermined angle, the lock plate 9 is pulled to the left along the guide hole 23 and the receiving hole 8b by the urging force of the bamboo shoot vane 12, and the locking protrusion 10 of the lock plate 9 is moved to the first position. 1 Automatically engage the notch 7 of the arm 1. Since this engaged state is accurately maintained by the urging force of the bamboo spring 12, the wing body 16 is fixedly held at a predetermined open position.

To close the wing body 16, the lock plate 9 is slid to the right along the guide hole 23 and the receiving hole 8b against the bias of the bamboo spring 12, and the locking projection 10 of the lock plate 9 is closed. Is disengaged from the notch 7 of the first arm 1 so that the first arm is slidable along the second arm 2. When the wing body 16 is closed and rotated about the hinge axis, the first arm 1 rotates about the pivot axis 4 with respect to the wing body 16 while the second arm 2 is fixed about the pivot axis 6 as described above. The first arm 1 is sequentially pushed into the second arm 2 by rotating with respect to the frame body 17.

When the wing body 16 slightly rotates and moves to a position where the locking protrusion 10 of the lock plate 9 does not face the notch 7, the finger is released from the lock plate 9. During the subsequent rotation operation, the abdominal surface 10a of the locking projection 10 of the lock plate 9 is brought into sliding contact with the right end surface 1a of the first arm 1 and the wing body 16 is closed.

When the first arm 1 is provided with a plurality of notches 7, the wing body 16 is opened at an opening angle by appropriately selecting the notches 7 with which the locking protrusions 10 of the lock plate 9 engage. Are held fixed at a plurality of different open positions.

[0014]

【Example】

 In the illustrated embodiment, the first arm 1 is composed of a thick flat bar, and two notches 7 are provided. A guide block 19 slidably contacting the front and rear side wall plates 2a and 2b and the left and right side wall plates 2c and 2d of the second arm 2 is fixed to the tip of the first arm 1, and the tip of the second arm 2 is fixed to the tip. The steady rest cap 20 into which the first arm 1 is fitted is fitted and fixed.

In the stopper 24 inserted from the rectangular through hole 25 of the front side wall plate portion 11a of the lock case 11 into the through hole 26 of the front side wall plate portion 2a of the second arm 2, the hook portion 27 has the front side wall plate portion 2a. The lock case 11 is fixed to the second arm 2 by engaging with the inner surface of a. The front end surface of the locking protrusion 10 is in sliding contact with the inner surface of the rear side wall plate portion 2b of the second arm 2.

[0016]

[Effect of the device]

 As described above, in the fixed stay device of the present invention, the first arm 1 made of a flat bar is slidably fitted in the second arm 2 made of a square pipe, and the notch 7 is formed in the right end surface 1 a of the first arm 1. And the receiving holes 8a and 8b are provided in the left and right side wall plates 2c and 2d of the second arm 2 in the transverse direction, and the guide holes 23 of the left side wall plate 11c of the lock case 11 fitted and fixed to the second arm 2 are provided. Since the lock plate 9 is slidably inserted into the receiving hole 8b of the second arm 2 and the locking projection 10 that engages and disengages with the notch 7 is cut and raised at the right end portion of the lock plate 9, the wing is exposed to wind pressure or the like. When a force in the closing direction acts on the body 16, the force applied to the lock plate 9 via the first arm 1 is evenly distributed and supported by the left and right side wall plate portions 2c and 2d of the second arm 2. The force is not applied to the locking projection 10 in the plate thickness direction. Since acts on the plate width direction, it is possible to considerably large force is also not occur distortion deformation of the locking plate 9 and locking projection 10 acts, used without fear of failure over time.

Further, in the fixed stay device of the present invention, the front side wall plate part 11a, the rear side wall plate part 11b and the left side wall plate part 11c of the lock case 11 are used to form the front side wall plate part 2a and the rear side wall plate part of the second arm 2. 2b and the left side wall plate portion 2c are covered with the receiving holes 8a and 8b, the inner surface projection 21 of the lock case 11 is fitted into the receiving hole 8a of the second arm 2, and the left side wall plate portion 11c of the lock case 11 is fitted. At the center of the guide hole 23, the expansion / contraction cavity 18 of the bamboo spring 12 is provided, and the bamboo spring 12 is housed in the opening 13 in the left half of the lock plate 9, and the left edge surface of the opening 13 is accommodated. Bamboo child spring 12 is fitted and supported on rightward projection 15 of 14, and small-diameter end portion 12a of bamboo child spring 12 is brought into contact with said left edge 14 and large-diameter end portion 12b of bamboo child spring 12 is attached to second arm 2. Abut the left side wall plate 2c Therefore, the sliding guide and the sliding bias of the lock plate 9 are accurately performed, and there is no risk of the fingertips and peripheral objects being caught in the bamboo shoot panel 10 and it can be used safely.

In the fixed stay device according to the second aspect, since the plurality of notches 7 are provided in the right end surface 1a of the first arm 1 along the length direction, the wing body 16 is provided with a plurality of opening angles. Can be held fixed in the position.

[Brief description of drawings]

FIG. 1 is a front view of a fixed type stay device in a shortened state according to an embodiment of the present invention.

FIG. 2 is a left side view of the fixed stay device.

FIG. 3 is a plan view of the fixed stay.

FIG. 4 is a sectional view taken along line BB of FIG.

5 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 6 is a longitudinal sectional view of the fixed stay device in an extended state.

[Explanation of symbols]

 1 1st arm 1a Right end surface of 1st arm 2 2nd arm 2a Front side wall plate part of 2nd arm 2b Rear side wall plate part of 2nd arm 2c Left side wall plate part of 2nd arm 2d Right side wall plate of 2nd arm Part 3 1st bracket 4 Axis 5 2nd bracket 6 Axis 7 Notch 8a Receiving hole 8b Receiving hole 9 Lock plate 10 Locking protrusion 10a Vent of locking protrusion 11 Lock case 11a Front side wall plate of lock case 11b Lock case Rear side wall plate 11c Left side wall plate of lock case 11d Right side wall plate of lock case 12 Bamboo spring 12a Small diameter end of bamboo spring 12b Large diameter end of bamboo spring 13 Opening 14 Left edge of opening 15 Rightward Protrusion 16 Wing body 17 Fixed frame body 18 Expansion / contraction cavity 19 Guide block 20 Steady stop cap 21 Inner surface protrusion 22 Central protrusion 23 Proposal Hole 24 stop 25 hole 26 hole 27 hook

Claims (2)

[Scope of utility model registration request] 1. A first arm 1 made of a flat bar is slidably fitted in a second arm 2 made of a square pipe, and a first bracket 3 is connected to a tip end portion of the first arm 1 by a pivot 4, The second bracket 5 is connected to the base end portion of the arm 2 by the pivot 6, and the notch 7 is provided in the right end surface 1a of the first arm 1, and the right and left side wall plate portions 2c, 2 of the second arm 2 are provided.
Receiving holes 8a and 8b are provided in the tip portion of d in the transverse direction, and a lock case 11 is fitted and fixed to the second arm 2 at a site where the receiving holes 8a and 8b are present. The front side wall plate 2a and the rear side wall plate 2b of the second arm 2 are formed by the rear side wall plate 11b and the left side wall plate 11c.
And the left side wall plate portion 2c are covered, and the inner surface protrusion 21 of the left side wall plate portion 11c of the lock case 11 is inserted into the receiving hole 8 of the second arm 2.
The second arm 2 and the guide hole 23 which is fitted into the lock case 11 and penetrates the left side wall plate portion 11c of the lock case 11 and the inner surface projection 21.
A lock plate 9 is slidably fitted into the receiving hole 8b of the first arm 1, the lock plate 9 is arranged on the front side of the first arm 1, and the lock plate 9 is engaged with and disengaged from the notch 7 and the right side wall of the second arm 2 is The locking protrusion 10 that comes into contact with and separates from the plate portion 2d is cut and raised toward the right end portion of the lock plate 9, and the left wall plate portion 11c of the lock case 11 and the inner surface protrusion 21 are aligned with the guide hole 23 in the center, and the bamboo spring 12 is formed. The expansion / contraction cavity 18 is provided, the opening 13 for accommodating the bamboo spring 12 is provided in the left half of the lock plate 9, and the rightward protrusion 15 is provided in the center of the left edge 14 of the opening 13.
Bamboo spring 12 fitted and supported by the rightward protrusion 15
The fixed-type stay device in which the small-diameter end 12a of the second arm 2 is brought into contact with the left-side edge surface 14 of the opening 13, while the large-diameter end 12b of the bamboo spring 12 is brought into contact with the left-side wall plate 2c of the second arm 2. 2. The fixed stay device according to claim 1, wherein a plurality of notches 7 are provided in the right end surface 1a of the first arm 1 along the length direction.