JPH0444796Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention is a type of gate that opens and closes an entrance by rotating the door body up and down along a predetermined circular arc trajectory.
The present invention relates to a door opening/closing position fixing device for holding a door body in an open position and a closed position.

Prior Art As shown in Japanese Utility Model Application Publication No. 51-29733, the middle part of an arm is pivoted to a bracket fixed to a support column so as to be movable up and down, a door body is attached to one end of this arm, and a door body is attached to the other end of the arm. A device is known in which the opening and closing positions of a door are determined by attaching a balance weight and fixing the arm by inserting a pin into a hole in an arm through a hole in a bracket.

Problems that the invention aims to solve: However, with the above structure, the pin must be inserted while keeping the door open or closed while aligning the hole in the bracket with the hole in the arm.
Its operation is difficult and troublesome.

This is more noticeable when the weight of the door body is large.

Means and action for solving the problem A lock pin 19 supporting a roller 21 at one end is attached to one side of the door body 3 side and the support column 1 side, parallel to the shaft 8, with the roller 21 facing the other side. , a flat surface that is perpendicular to the shaft 8 and in contact with the roller 21 is provided on the other side of the door body 3 side and the support column 1 side, and a first raised part 40 and a second raised part 4 are provided on this flat surface.
1 are provided toward one side at equal distances from the center of the shaft 8 at intervals in the circumferential direction of the shaft 8, and the shafts 8 at the first raised portion 40 and the second raised portion 41
Both circumferential side surfaces 40a, 40a, 41a, 41a
is a slope inclined with respect to a right angle to the flat surface, and a first concave part 42 and a second concave part in which the roller 21 fits into the circumferential intermediate part of the shaft 8 in the first protruding part 40 and the second protruding part 41 The lock pin 19 is pressed to the other side with an elastic member to hold the roller 20 against the flat surface of the other side, and the positional relationship between the lock pin 19 and the first and second protrusions 40 and 41 is determined. When the roller 21 provided on the lock pin 19 fits into the first concave portion 42 of the first raised portion 40, the door body 3 is in the closed position, and the roller 21 provided on the lock pin 19 fits into the second recessed portion 42 of the second raised portion 41.
A device for fixing the opening/closing position of a door so that the door body 3 is in the open position when fitted into the recessed part 43.

As a result, when the door body 3 is rotated upward with respect to the support column 1 by the shaft 8, the roller 21 moves relative to the flat surface, and the roller 20 moves toward the second raised portion 41.
When the door body 3 is rotated further downward from this state, the roller 20 is disengaged from the second concave portion 43 and the door body 3 is held in the open position. Since the door body 3 can be held in the closed position by fitting into the first recessed part 42 of the part 40, the door body 3 can be held in the open position and the closed position simply by rotating the door body 3 upward or downward. This makes it easy to open and close the door.

Embodiment FIGS. 7 and 8 are front views of a garage, in which the roof 2 is curved in a substantially arc shape over a pair of front columns 1, 1 and a pair of rear columns (not shown).
are installed to form a garage.

The door body 3 that opens and closes the entrance A of the garage has a substantially circular arc shape that is curved in substantially the same manner as the roof 2, and is attached to the pair of supports 1, 1 via a pair of arms 4, 4.
It is mounted so that it can freely move up and down between a closed position that closes the doorway A and an open position that opens it, and when it is rotated to the open position, the door body 3 is in a position along the roof 2 as shown by the imaginary line in Figure 8. The entrance A can be opened wide.

The arm 4 is attached to the support column 1 via a connection mechanism 5, and the connection mechanism 5 is a structure in which a mounting body 6 fixed to the arm 4 and a receiver 7 fixed to the support column 1 are connected by a horizontal shaft 8. The door body 3 is configured to rotate up and down around a shaft 8, and a damper 9 is pivotally connected to the arm 4 and the support column 1, so that the door body 3 can be moved up and down with a light force.

The mounting body 6 has a substantially L-shape, and has a concave portion 1.
0, and a cover 12 that is approximately L-shaped. One end of the shaft 8 is fitted into the hole 13 , and a retaining plate 17 is fixed to one end surface 8 a of the shaft 8 with a bolt 18 . in contact with the surroundings of
A lock pin 19 is fitted into the small diameter hole 14,
One end of a leaf spring 20 is fitted and fixed to one end of the lock pin 19, and a roller 21 is supported at the other end.A round rivet 50 is fixed to the other end of the leaf spring 20, and its hemispherical shape head of 50
a is fitted into the hemispherical recess 16a of the protrusion 16, and a screw rod 23, which is fixed by passing through the through hole 15, is inserted into the hole 22 formed in the middle part of the leaf spring 20, and When the nut 24 is screwed together, the middle part of the leaf spring 20 is supported by the case 11, and the lock pin 19 is biased by the leaf spring 20 in the direction of protruding from the case 11. The biasing force can be adjusted.

The receiving body 7 is a substantially rectangular plate-like body, and a large diameter hole 25 is formed in the center thereof, passing through from one side to the other side, and a circular protrusion 26 is formed on one side, and a circular protrusion 26 is formed on the other side. A circular recess 27 is formed concentrically with the large diameter hole 25, and the four corners on one side are made thin to form a mounting hole 28, and screw holes 29 and a plurality of V holes are formed above and below the left and right center portions. Grooves 30 are formed respectively, and the V-grooves 30 are radial toward the center of the large diameter hole 25.

A lock plate 31 is fitted into the circular protrusion 26 and fixed with a pair of upper and lower presser pieces 32, which are tightened with bolts 33 that are screwed into the screw holes 29, and which lock the plate 31. On the other side of the plate 31, a large number of V grooves 34 that engage with the V grooves 30 are formed radially at equal intervals in the circumferential direction, and by engaging the V grooves 30 and 34, the lock plate 31 is prevented from rotating. The fixing position can be changed in the circumferential direction by rotating the lock plate 31 by loosening the bolt 33 and weakening the tightening of the presser piece 32.

One side of the lock plate 31 has a flat annular surface 31a in contact with the roller 21 provided on the lock pin 19, and this annular surface 31a has a first
Second raised parts 40 and 41 are integrally formed at intervals in the circumferential direction, and both side surfaces 40a and 41a of the first and second raised parts 40 and 41 are sloped surfaces, and the first and second raised parts 40 and 41 have slopes.
Second recessed portions 42 and 43 are formed, and both side surfaces 42a and 43 of the first and second recessed portions 42 and 43 are formed.
a is also a slope, making it easy for the roller 21 to fit into the first and second recesses 42 and 43, and the protruding length of the first protrusion 40 is equal to the second protrusion 41.
It is slightly longer than . In addition, since the left and right coupling mechanisms 5 are on opposite sides, the lock plate 31
A third raised portion 44 having the same shape as the second raised portion 41 is provided.
are integrally formed.

The other end of the shaft 8 is fitted into the large diameter hole 25, and the plate 45 fitted into the small diameter portion 8b is fixed to the receiver 7 with bolts 46 to prevent the shaft 8 from slipping out. As shown in FIG. 1, a mounting body 6 is connected to a receiving body 7 so as to be rotatable about a shaft 8. As shown in FIG.

Therefore, when the door body 3 is in the closed position shown in solid lines in FIGS. 7 and 8, the roller 21 of the lock pin 19
As shown in FIGS. 1 and 2, the door member 3 is fitted and locked into the first recessed portion 42 of the first raised portion 40 to hold the door body 3 in the closed position.

Furthermore, when the door body 3 is rotated to the open position shown by the imaginary lines in FIGS.
The roller 21 provided on the lock pin 19 is fitted into the second concave portion 43 of the lock pin 19, and the downward rotation force due to the weight of the door body 3 is converted into a force for the roller 21 provided on the lock pin 19 to overcome the second raised portion 41 by the urging force of the leaf spring 20. Twist and hold the door body 3
hold in the open position.

Note that the lock pin 19 may be directly fitted into the first and second recesses 42 and 43, and the lock pin 19 may be biased by a coil spring. The arm 4 may be provided with a lock pin, and the support column 1 may be provided with first and second recessed portions.

In other words, in a door in which the door body 3 is attached to the pillar 1 so as to be movable up and down with the shaft 8, the first and second parts are attached to the pillar 1 side.
Concave portions 42 and 43 are provided around the shaft 8, and a locking member that fits into the first and second concave portions 42 and 43 is provided on the door body 3 side and biased in the fitting direction with an elastic body. Good.

Effect of the invention When the door body 3 is rotated upward with respect to the support 1 by the shaft 8, the roller 21 moves relative to the flat surface, and the roller 20 moves into the second concave part 43 of the second raised part 41. When the door body 3 is fitted, the door body 3 can be held in the open position, and when the door body 3 is further rotated downward from this state, the roller 20 is detached from the second recessed portion 43 and the door body 3 is held in the open position.
Since the door body 3 can be held in the closed position by fitting into the first concave part 42 of the raised part 40, the door body 3 can be closed by simply rotating the door body 3 upward or downward without manually operating the lock pin 19. 3 can be held in the open and closed positions, making it easy to open and close the door body.

Further, both side surfaces 40a and 41a of the first raised portion 40 and the second raised portion 41 are slopes that are inclined perpendicularly to the flat surface, and the roller 20 can be moved from the flat surface to the first and second raised portions.
Because it rides smoothly on the raised parts 40 and 41,
The force required to move the door body 3 up and down can be reduced.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view of the coupling mechanism, Fig. 2 is a front view, Fig. 3 is a sectional view taken along the line - - of Fig. 2, Figs. The figures are the front view, one side view, the other side view, and the seventh side view of the lock plate.
8 are a side view and a front view of the garage. 1 is a support column, 3 is a door body, 8 is a shaft, and 42 and 43 are first and second recessed portions.

Claims (1)

[Scope of Claim for Utility Model Registration] In a door in which a door body 3 is attached to a support post 1 using a shaft 8 so as to be movable up and down between a closed position and an open position, on one side of the door body 3 side and the support post 1 side. , a lock pin 19 supporting a roller 21 at one end is attached to the shaft 8.
The roller 21 is installed parallel to the other side, and the shaft 8 is installed on the other side of the door body 3 side and the support column 1 side
A flat surface that is perpendicular to the roller 21 and in contact with the roller 21 is provided, and a first raised portion 40 and a second raised portion 41 are spaced apart from each other in the circumferential direction of the shaft 8 at equal distances from the center of the shaft 8. both side surfaces 40a, 40a, 41a, 4 in the circumferential direction of the shaft 8 in the first raised part 40 and the second raised part 41.
1a is a slope inclined with respect to a right angle to the flat surface, and a first recessed portion 42 and a second recessed portion 42 in which the roller 21 is fitted in the circumferential intermediate portion of the shaft 8 in the first raised portion 40 and the second raised portion 41. The lock pin 19 is pushed to the other side by an elastic member to press and hold the roller 20 against the flat surface of the other side, and the lock pin 19 and the first and second raised parts 40 are
When the roller 21 provided on the lock pin 19 fits into the first concave portion 42 of the first raised portion 40, the door body 3 is in the closed position, and the roller 21 provided on the lock pin 19 fits into the first recessed portion 42 of the first raised portion 40. A door opening/closing position fixing device characterized in that when the door body 3 is fitted into the second recessed part 43, the door body 3 is in the open position.