JP2000274168A - Trap type gate door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a trap type gate door in which the rotary regions of both arm members can be superposed without requiring the avoidance of the mutual rotary regions of both arm members, housing spaces among supports are not limited by a pair of the arm members and the danger of the pinching of a hand and a finger can be prevented. SOLUTION: The trap type gate door has supports 2 and 3, arm means 4 and 5 rotatably arranged in a perpendicular centering around one ends to each of the supports 2 and 3, and a door 6 installed at each other ends of the arm means 4 and 5, and the arm means 4 has arm members 15 and 16 and a moving mechanism moving the center of rotation of the arm member 16 in rotation in the R direction of the arm members 15 and 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flip-up gate suitable for use as an entrance to a garage or the like.

[0002]

A gate of this type is disclosed in Japanese Patent Application Laid-Open No. 7-279564.
2. Description of the Related Art There has been known an apparatus including a support, a pair of arm members rotatably supported at one end by the support, and a door attached to the other end of the pair of arm members.

[0003] The flip-up gate described in the above-mentioned publication is designed so that both arms are approached so as not to pinch a hand or finger between the arms and to minimize the amount of the door protruding toward the road. In addition to the above, the support portion of one arm member is provided on a support column in a position close to and behind the support portion of the other arm member, and the front ends of both arm members are rotatably supported on the back surface of the door. It is.

[0004] In such a flip-up type gate, the pivots of both arm members are both fixedly provided on a column.
Since the pivot portion of one arm member is disposed behind the pivot portion of the other arm member, a crossing state necessarily occurs between the two arm members when the door is opened. In the pair of arm members where the crossing state occurs as described above, since the other arm member must be arranged avoiding the rotation region of one arm member,
The space occupied by the pair of arm members in the width (thickness) direction becomes large, which limits the accommodation space between the columns, and furthermore, the danger of the hand or finger being pinched by the proximity or intersection of both arm members still remains. ing.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned points, and an object of the present invention is to avoid overlapping the rotation regions of both arm members with each other and to overlap the rotation regions of both arm members. Accordingly, an object of the present invention is to provide a flip-up type gate in which an accommodation space between columns is not limited by a pair of arm members, and a danger of pinching of a hand or a finger can be eliminated.

[0006]

A flip-up gate according to a first aspect of the present invention is provided with a pair of pillars and each of the pillars is rotatably arranged on a vertical plane about one end with respect to one end thereof. A pair of arm means, and a door attached to the other end of each arm means, wherein at least one of the arm means is a pair of arm members juxtaposed to each other, and the pair of arm members And a moving mechanism for moving the center of rotation of one of the arm members in the rotation of the arm member. One end of the one of the arm members is rotatably supported by the support via the moving mechanism. One end of the other arm member is rotatably supported by a column, and the other end is adjacent to the other end of one arm member, and is rotatably connected to the door. It is rotatably connected, and the moving mechanism is One of the rotating members that is rotated by the rotation of one end of the other arm member around the rotation center of one end of the arm member, and one of the rotating members that is rotated by the rotation of the one rotating member. With the rotating body of
And a second rotating body rotatably supported by a support, and one end of one arm member is eccentrically rotatable with respect to the other rotating body with respect to a rotating center of the rotating body. Installed.

According to the flip-up gate of the first aspect, since the moving mechanism for moving the center of rotation of one of the arm members by opening and closing the door is provided, the rotation area of the two arm members relative to each other is provided. It is not necessary to avoid the rotation area of both arm members, so that the accommodation space between the columns is not limited by the pair of arm means, and the danger of pinching of the hand or finger Can be eliminated.

In the flip-up type gate according to the second aspect of the present invention, in the flip-up type gate according to the first aspect, the pair of arm members of the arm means make the door substantially perpendicular to the ground when the door is closed. When the door is opened, the door is pivotally supported at one end of each of them so that the door is arranged substantially horizontally with respect to the ground, and the door is rotated at each of the other ends of the door. They are freely connected.

In the flip-up gate according to the third aspect of the present invention, in the flip-up gate according to the first or second aspect, when the door is closed, one arm member is located below the other arm member when the door is closed. When the door is open, it extends in front of the other arm member and substantially parallel to the other arm member.

[0010] In the flip-up gate according to a fourth aspect of the present invention, in the flip-up gate according to any one of the first to third aspects, both the rotating bodies are gears that mesh with each other, and the other arm member has One of the gears rotated by the rotation of one end is
It has a gear diameter smaller than the gear diameter of the other gear rotated by the rotation of this one gear.

In the present invention, the pair of rotating bodies may be a pair of rollers that come into frictional contact with each other or a pair of toothed rollers around which a timing belt is stretched.
When a pair of gears mesh with each other like the flip-up type gate of the fourth aspect, reliable rotation transmission can be performed in a small space.

In the flip-up gate according to a fifth aspect of the present invention, in the flip-up gate according to any one of the first to fourth aspects, a viscous shear resistance force against rotation of at least one of the arm means is provided. The apparatus further includes means for applying a viscous shear resistance to the arm means.

According to the flip-up gate according to the fifth aspect, it is possible to prevent sudden rotation of the arm means in the manually opened / closed door, and eliminate a collision with the ground or the stopper.

In the flip-up gate according to a sixth aspect of the present invention, in the flip-up gate according to any one of the first to fifth aspects, in the flip-up direction of the door against the dead weight of the door and the arm means. An elastic force applying means for applying an elastic force to at least one of the arm means is provided.

In the flip-up type gate according to the sixth aspect, since the weight of the door and the arm is canceled by the elastic force applying means, the door can be easily opened manually.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a preferred embodiment of the present invention. The present invention is not limited to these embodiments.

In FIG. 1 to FIG. 7, a flip-up type gate 1 of the present embodiment is a pair of upright columns 2 and 3 and a pair of columns 2 and 3 which are turned around one end in a vertical plane. A pair of arm means 4 and 5 movably arranged, a door 6 attached to the other end of each of the arm means 4 and 5, and a viscous shear resistance force against the rotation of the arm means 4; A viscous shear resistance applying means 7 to be applied to the arm 4; and an elastic force applying means 8 to apply an elastic force to the arm 4 in the direction in which the door 6 flips up against the weight of the door 6 and the arm means 4 and 5. I have it.

In this embodiment, the same viscous shear resistance applying means and elastic force applying means as the viscous shear resistance applying means 7 and elastic force applying means 8, respectively, are not shown, but the arm means 5 side has the same configuration. Although provided, a configuration similar to the viscous shear resistance applying means 7 and the elastic force applying means 8 may be provided on only one of the arm means 4 and 5,
One of the elastic force applying means 7 and the viscous shear resistance applying means 8 is provided on the arm means 4 side, and the elastic force applying means 7 and the viscous shear resistance applying means are provided on the arm means 5 side. 8 and the other of them may be provided.

The column 3, the arm unit 5, the viscous shear resistance applying unit and the elastic force applying unit on the arm unit 5 side (not shown) are respectively composed of the column 2, the arm unit 4, the viscous shear resistance applying unit 7 and the elastic force applying unit. Since the structure is the same as that of each of the means 8, the support column 2, the arm means 4, the viscous shear resistance applying means 7 and the elastic force applying means 8 will be described below.

The column 2 comprises an outer hollow body 11 and an inner hollow body 1
An elastic force applying means 7 and a viscous shear resistance applying means 8 are disposed in the inner hollow body 12, and brackets 13 and 14 are attached to a lower portion of the inner hollow body 12.

The arm means 4 is provided with a pair of rectangular arm members 15 and 16 arranged side by side adjacent to each other and a center 17 of rotation of the arm member 16 when the pair of arm members 15 and 16 rotate in the R direction. And a moving mechanism 18 for moving.

The arm member 15 is fixed at one end 21 to a shaft member 22 which will be described later, and is supported by the column 2 via the shaft member 22 so as to be rotatable around a rotation center 23. The other end 24 is adjacent to the other end 25 of the arm member 16 and is rotatably connected to a bracket 26 of the door 6 via a shaft member 27.

The arm member 16 is supported at one end 31 on the support column 2 via the moving mechanism 18 so as to be rotatable around the center of rotation 17, and at the other end 25 to the bracket 26 of the door 6. It is rotatably connected via a shaft member 32.

The moving mechanism 18 includes one end 2 of the arm member 15.
A gear 35 serving as a rotating body fixed to the shaft member 22, in this example, has teeth 35 on the outer surface so as to be rotated by the rotation of the one end 21 of the arm member 15 around the first rotation center 23. The spur gear 36 is engaged with the spur gear 36 so as to be rotated by the rotation of the spur gear 36. In this example, the spur gear 36 is engaged with the spur gear 36, and the outer hollow body 11 and the inner hollow body 12 of the support column 2 have shaft members. A gear as a rotating body supported so as to be rotatable around a rotation center 38 via a 37, in this example, a fan-shaped spur gear 40 having teeth 39 on the outer surface of an arc is provided.

The spur gear 36 has a gear diameter of a sector spur gear 4.
0 is smaller than the gear diameter of
The shaft member 41 is integrally fixed to one side surface of the outer hollow body 11 through an arc-shaped slit 43 formed in the side surface 42 of the outer hollow body 11. One end 31 of the arm member 16 is attached to one end of the shaft member 41 protruding to the outside so as to be rotatable around the rotation center 17, and thus the arm member 1
6 is connected to the sector spur gear 40 and the sector spur gear 4
It is eccentrically attached to the 0 center of rotation 38 and is rotatably mounted.

The door 6 has a frame 45 and a number of blind grids 46 attached to the frame 45. The bracket 26 is fixed to one vertical frame 47 of the frame 45.

The above-mentioned pair of arm members 15 and 16
When the door 6 is closed by a solid line in FIGS. 1 and 7, the door 6 is arranged substantially perpendicular to the ground 49. When the door 6 is opened by a two-dot chain line in FIGS. 4
9 so that their one end 21
And 31 are rotatably supported by the column 2 and are rotatably connected to the door 6 at the other ends 24 and 25, respectively.
When the door 6 is closed, it extends substantially parallel to the arm member 15 below the arm member 15, and when the door 6 is open, it extends substantially parallel to the arm member 15 in front of the arm member 15.

The viscous shear resistance applying means 7 includes a gap forming body 51 fixed to one end of the shaft member 22 so as to be rotated in the same direction by the rotation of the arm means 4 in the R direction. , A gap forming body 53 that is rotatably arranged in the R direction relative to the gap forming body 51, and a viscous body 54 filled in the gap 52.
The relative rotation centers of the gap forming members 51 and 53 are arranged on the rotation center 23 of the arm member 15.

The gap forming body 51 has a pair of hollow half-housings 55 and 56,
5 and 56 are abutted with each other and fixed to each other by rivets or the like. The half housing 55 is fitted and fixed to one end of the shaft member 22, and is pivotally attached to the inner hollow body 12 of the support column 2. The shaft member 22 is supported by the outer hollow body 11 of the column 2 so as to be rotatable in the R direction around the rotation axis 23. The gap forming body 53 includes a large-diameter cylindrical portion 57 disposed in the half housing 55, and small-diameter cylindrical portions 58 and 59 integrally formed at both ends of the large-diameter cylindrical portion 57. The small-diameter cylindrical portion 58 provided in the half housing 55 like the large-diameter cylindrical portion 57 is provided via a bearing 60 so that the half housing 55 can rotate in the R direction. The small-diameter cylindrical portion 5 supported by the half housing 55 So as not to rotate in the R direction about the pivot axis 23, it is secured to the inner hollow body 12 of the tower 2. The gap 52 filled with the viscous body 54 is formed between the inner peripheral surface of each of the half housings 55 and 56 and the outer peripheral surface of the large-diameter cylindrical portion 57.

The viscous shear resistance applying means 7 generates a viscous shear resistance force on the viscous body 54 by rotating the gap forming body 51 in the R direction with respect to the gap forming body 53 based on the rotation of the arm means 4 in the R direction. Then, based on the generated viscous shear resistance, the viscous shear resistance is applied to the rotation of the arm means 4 in the R direction to prevent the arm means 4 from suddenly rotating in the R direction. It has become.

The elastic force applying means 8 includes a half housing 55
One end 67 is connected to the cam plate 65 fixed to the cam plate 65 via a pin 66, the intermediate portion 68 is brought into contact with the cam edge 69 of the cam plate 65 and is bent and guided, and the other end 70 is connected to the other end 70 via a pin 71. And a chain 73 having a connecting member 72 rotatably connected to each other, and one end 75 and 76 of the chain 73 are hooked into a hole 77 of the connecting member 72, and the other end 78 and 79 of the chain 73 respectively.
Has a pair of coil springs 82 and 83 hooked into a hole 81 of the coupling tool 80. The cam edge 69 has an arc edge 85 about the rotation center 23 of the arm member 15.
And a straight edge 86 continuous with the arc edge 85. The small-diameter coil spring 82 is arranged concentrically with and inside the large-diameter coil spring 83, and has a different elastic coefficient from the coil spring 83, in this example, a small one.

The connector 80 has a screw portion 87,
A nut 88 for adjusting spring force is screwed into the screw portion 87,
The coil spring 8 is attached to the bracket 14 and changes the amount of screwing of the nut 88 into the screw portion 87.
The elastic force generated by 2 and 83 can be adjusted. In this example, since the elastic force applying means 8 includes the pair of coil springs 82 and 83, one of the coil springs 83 is responsible for most of the spring-up force and the other coil spring 82 is finely adjusted. Can be used for The coil springs 82 and 83 are driven by their respective elastic forces.
In FIG. 5, the cam plate 65 is rotated in the R1 direction.

In this embodiment, the elastic force applying means 8 includes a gas spring 90 in addition to the coil springs 82 and 83, and the gas spring 90 is connected to one end 93 of the piston rod 92 via a pin 91. Is rotatably connected to the cam plate 65, and the lower end 95 of the cylinder 94 is rotatably connected to the bracket 13 via the pin 96. The gas spring 90 is driven by its air elastic force.
Similar to the coil springs 82 and 83, the cam plate 65 is rotated in the R1 direction in FIG.

The elastic force applying means 8 acts as a balancer for canceling the weight of the door 10 and the arm means 4 so that the door 10 can be easily lifted manually.

A stopper piece (not shown) is provided on the cam plate 65, and a stopper projection (not shown) is provided on the inner hollow body 12 of the column 2, respectively.
When it is turned upward, as shown by the two-dot chain line in FIG. 7, the stopper piece comes into contact with the stopper projection, and further rotation of the arm means 4 is prohibited. Has become.

In the above-mentioned flip-up type gate 1, when the door 6 is closed as shown by a solid line in FIG. 7, the door 6 is arranged substantially perpendicular to the ground 49, and the arm member 16 is positioned below the arm member 15. The center of rotation 17 of the arm member 16 is located below and behind the center of rotation 23 of the arm member 15 so as to be positioned substantially parallel to the arm member 15. When the door 6 is manually lifted, the arm means 4 is turned upward in the R direction, and the fan-shaped spur gear 40 is turned around the turning center 38 by the turning of the spur gear 36, whereby the arm means 4 is turned. As a result, the rotation center 17 of the one end 31 of the arm member 16 approaches the rotation center 23 of the one end 21 of the arm member 15 and moves forward, so that the door 6 is raised while being tilted. In the open state of the door 6 indicated by the two-dot chain line in FIG. 7, the door 6 is arranged substantially horizontally with respect to the ground 49, and extends in front of the arm member 15 so as to extend substantially parallel to the arm member 15. The rotation center 17 of the arm member 16 is moved forward of the rotation center 23 of the arm member 15.

The flip-up gate 1 is provided with the moving mechanism 18 for moving the rotation center 17 of the arm member 16 by opening and closing the door 6 as described above. It is not necessary to avoid each other's rotation area, and the rotation areas of both arm members 15 and 16 can be overlapped, and the accommodation space between columns 2 and 3 is limited by arm means 4 and 5. In addition, since the arm members 15 and 16 can be rotated without crossing each other, there is no danger of the hand or finger being pinched.

[0038]

According to the present invention, it is not necessary to avoid the rotation regions of the two arm members, and the rotation regions of the two arm members can be overlapped. There is no limitation on the accommodating space, and the danger of hand or finger being pinched can be eliminated.

[Brief description of the drawings]

FIG. 1 is a perspective view of a preferred embodiment of the present invention.

FIG. 2 is an explanatory cross-sectional view of an upper portion of a column in the embodiment shown in FIG.

FIG. 3 is an explanatory side view of an upper portion of a column in the embodiment shown in FIG. 1;

FIG. 4 is an explanatory view of the inside of the upper part of the column in the embodiment shown in FIG. 1;

FIG. 5 is an explanatory view of the inside of the upper part of the column in the embodiment shown in FIG. 1;

FIG. 6 is an explanatory view of the inside of a lower portion of the column in the embodiment shown in FIG. 1;

FIG. 7 is an operation explanatory diagram of the embodiment shown in FIG. 1;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 flip-up gate 2, 3 column 4, 5 arm means 6 door 15, 16 arm member 18 moving mechanism 36 spur gear 40 sector spur gear

Claims (6)

[Claims] 1. A pair of struts, a pair of arm means rotatably arranged in a vertical plane around one end with respect to each of the struts, and a door attached to the other end of each arm means. At least one arm means includes a pair of arm members arranged adjacent to each other and a moving mechanism for moving the center of rotation of one arm member in the rotation of the pair of arm members. One end of one arm member is rotatably supported by a support via a moving mechanism, the other end is rotatably connected to a door, and one end of the other arm member is The other end is rotatably connected to the door adjacent to the other end of the one arm member, and the moving mechanism is
One of the rotating bodies that is rotated by the rotation of one end of the other arm member around the rotation center of one end of the other arm member, and is rotated by the rotation of the one rotating body. One of the arm members is engaged with one of the rotating members and is rotatably supported by a support, and one end of one of the arm members is connected to the other of the rotating members. A flip-up type gate that is eccentrically mounted to the center of rotation and is rotatably mounted. 2. A pair of arm members of the arm means, when the door is closed, the door is arranged substantially perpendicular to the ground, and when the door is opened, the door is arranged substantially horizontal to the ground. 2. The flip-up gate according to claim 1, wherein each of the one ends is rotatably supported by a support, and each of the other ends is rotatably connected to a door. 3. The one arm member extends substantially parallel to the other arm member below the other arm member when the door is closed, and is connected to the other arm member in front of the other arm member when the door is opened. The flip-up gate according to claim 1 or 2, wherein the gate extends substantially in parallel. 4. The two rotating bodies are gears that mesh with each other, and one of the gears rotated by the rotation of one end of the other arm member is the other gear that is rotated by the rotation of the one gear. The flip-up gate according to any one of claims 1 to 3, having a gear diameter smaller than the gear diameter of the gate. 5. The apparatus according to claim 1, further comprising a viscous shear resistance applying means for applying a viscous shear resistance force against rotation of at least one arm means to said arm means. The flip-up gate described. 6. An apparatus according to claim 1, further comprising an elastic force applying means for applying elastic force to at least one of the arm means in a direction in which the door flips up against the weight of the door and the arm means. The flip-up gate according to the item.