JP2002349127A - Flip-up gate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flip-up type gate whose temperature dependence can be eliminated to enable a door to be smoothly opened and closed without causing sudden rotation of arm means and the door regardless of season and even if manual force applied to the door is greater than that normally applied, thereby avoiding disagreeable sounds which may be caused by the collision of the arm means, while also ensuring a long service life and making it possible to keep the door half-open. SOLUTION: The flip-up gate 1 includes posts 2 and 3; arm means 81 and 82 supported against the posts 2 and 3 at one end in such a manner as to be rotatable within a vertical plane; a door 13 attached to the other ends of the arm means 81 and 82; elastic force imparting means 31 and 32 for imparting elastic forces to the arm means 81 and 82 against the weight of the door 13 and the weight of the arm means 81 and 82 and in the direction in which the door 13 is sprung up; and viscous shear resistance imparting means 83 and 84 for imparting viscous shear resistance to the arm means 81 and 82 against the rotation of the arm means 81 and 82 in the direction in which the door 13 falls.

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.
A support, an arm member rotatably supported at one end by the support, a door attached to the other end of the arm member, and an elastic force in the direction of the door flipping up against the dead weight of the door and the arm member. And an elastic force applying means including a coil spring and a gas spring for applying the force to the arm member.

[0003] By the way, in the flip-up type gate described in the above publication, an elastic flip-up force is applied to the arm member by a coil spring and a gas spring so as to resist the respective weights of the arm member and the door. However, if the manual force applied to the door at the time of opening the door is large, this large manual force is applied to the arm member in addition to the elastic flip-up force. The arm member collides with a stopper or the like, generating unpleasant noise and shortening the life of the door. Also, when closing the door manually, if a large manual force is applied to the door, similar inconvenience may occur.

[0004] Since the flip-up type gate is usually arranged outside the door where the temperature changes rapidly, the gas spring is also exposed to the environment where the temperature changes sharply. Inconvenience may occur extremely depending on the season, and it may be difficult to maintain the door halfway depending on the season.

In this type of flip-up gate, when the door is opened and closed, the door itself protrudes forward, and if the door is not opened and closed in consideration of the protruding portion, an unexpected accident may occur. There is a problem that the opening and closing of the door is obstructed by the overhang, and the operability of the opening and closing of the door is extremely poor.

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 eliminate the temperature dependency, and therefore, when the manual force applied to the door is larger than usual regardless of the season. In addition, the door can be opened and closed smoothly without causing the arm means and the door to rotate suddenly, the generation of uncomfortable noise due to the collision of the arm means can be eliminated, the service life is long and the door is opened halfway. It is an object of the present invention to provide a flip-up gate that can reliably maintain the gate.

Another object of the present invention is to prevent a door from protruding forward as much as possible, eliminate inconveniences such as accidents caused by the protruding door, and increase a use space in the door. Is to provide.

[0008]

According to a first aspect of the present invention, there is provided a flip-up gate having a column, an arm supported at one end by the column so as to be rotatable in a vertical plane, and an arm. A door attached to the other end of the door, an elastic force applying means for applying an elastic force to the arm means in a direction in which the door flips up against the dead weight of the door and the arm means, and an arm means in the direction of lowering the door. Viscous shear resistance applying means for applying a viscous shear resistance force against the rotation to the arm means, wherein the elastic force applying means comprises a coil spring. Thereby, an elastic force in the direction in which the door is flipped up is applied to the arm means.

A flip-up gate according to a second aspect of the present invention comprises:
A support, arm means rotatably supported at one end in a vertical plane on the support, a door attached to the other end of the arm means, and a door against the weight of the door and the arm means. Elastic force applying means for applying an elastic force to the arm means in the direction of the flip-up, wherein the elastic force applying means comprises:
Only a coil spring is provided for generating an elastic force for rotating the arm means in the direction in which the door is flipped up.

[0010] Since both of the flip-up type gates of the first and second aspects generate a contraction elastic force for rotating the arm means in the direction in which the door is flipped up substantially by a coil spring, As a result of eliminating the temperature dependency as compared with the gas spring, regardless of the season, even when the manual force applied to the door is larger than usual, the arm means and the door do not rotate suddenly, but smoothly. The door can be opened and closed, the occurrence of unpleasant noise due to the collision of the arm means can be eliminated, the life can be extended, and the door halfway open can be reliably maintained.

A flip-up gate according to a third aspect of the present invention comprises:
The flip-up gate according to the second aspect is provided with viscous shear resistance applying means for applying to the arm means a viscous shear resistance force against rotation of the arm means in the downward direction of the door.

According to the flip-up type gate of the third aspect, similarly to the flip-up type gate of the first aspect, the arm means is prevented from turning in the downward direction by viscous shear resistance. Therefore, even when the manual force applied to the door at the time of closing the door is larger than usual, the door can be closed smoothly without causing sudden rotation of the arm means and the door, and discomfort due to the collision of the door can be achieved. The generation of noise can be eliminated, the life can be prolonged, and the influence of the change in elastic force due to the temperature dependency of the contraction coil spring, which is extremely small but somewhat present compared to the gas spring, can be eliminated.

[0013] 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, the arm means is rotatable in a vertical plane at one end of the support at one end. A main arm member supported at the other end and a door rotatably mounted on the other end in a vertical plane, and one end between the one end and the other end of the main arm member in the vertical plane. A connecting member rotatably connected to the door, an auxiliary arm member rotatably connected at one end to the door in a vertical plane, and the connecting member rotatably connected in the vertical plane; and a connecting member. At least one of the other end of the auxiliary arm member and the other end of the auxiliary arm member is rotatably connected to the support in a vertical plane and movably connected in the vertical direction. Connecting guide means for guiding the movement in the vertical direction.

In the flip-up gate according to the fourth aspect, the connecting member and the auxiliary arm member are rotatably connected to each other in a vertical plane, and the other end of the connecting member and the auxiliary arm are connected via the connecting guide means. Since at least one of the other ends of the member is rotatably connected to the column in the vertical plane and movably connected in the vertical direction, for example, when the door is opened from the completely closed position, When the arm member is rotated, the connecting member is rotated and dragged by the main arm member, and as a result, the entire auxiliary arm member is slightly drawn to the support side, and the door is moved in a direction to eliminate the protrusion at the lower end of the door. Is pivoted, so that the door can be prevented from protruding in the front as much as possible, and inconveniences such as an accident, operability deterioration, etc. caused by the protruding can be eliminated, and the use space in the door can be widened.

[0015] The flip-up gate according to a fifth aspect of the present invention comprises:
A support, arm means rotatably supported at one end in a vertical plane on the support, a door attached to the other end of the arm means, and a door against the weight of the door and the arm means. Elastic means for applying elastic force to the arm means in a direction in which the arm means is flipped up. A main arm member having a door rotatably mounted in a vertical plane at one end, and one end rotatably connected in a vertical plane between one end and the other end of the main arm member. A connecting member, an auxiliary arm member rotatably connected to the door at one end in a vertical plane, and the connecting member rotatably connected to the door in a vertical plane; and the other end of the connecting member and an auxiliary arm At least one of the other ends of the member and the other end of the member are rotatable on a support in a vertical plane. Connection guide means for movably connecting in the vertical direction and guiding the movement of the other end in the vertical direction, and the elastic force applying means includes a coil spring. With this coil spring, an elastic force in the direction in which the door is flipped up is applied to the arm means.

According to the flip-up gate according to the fifth aspect, similarly to the flip-up gate according to the fourth aspect, it is possible to prevent the front of the door from being protruded as much as possible. Eliminating inconveniences such as deterioration, the use space inside the door can be widened, and, like the flip-up type gates of the first and second aspects, the temperature dependency can be eliminated as compared with the gas spring, resulting in seasonal Regardless, even when the manual force applied to the door is larger than usual, the door can be opened and closed smoothly without causing a sudden rotation of the arm means and the door, and an unpleasant sound due to the collision of the arm means can be generated. Occurrence can be eliminated, the service life can be lengthened, and the door halfway open can be reliably maintained.

A flip-up gate according to a sixth aspect of the present invention comprises:
The flip-up gate according to the fifth aspect includes viscous shear resistance applying means for applying to the arm means a viscous shear resistance force against the rotation of the arm means in the direction of lowering the door.

According to the flip-up type gate of the sixth aspect, similarly to the flip-up type gates of the first and third aspects, the downward rotation of the door of the arm means is prevented by viscous shear resistance. Therefore, even when the manual force applied to the door at the time of closing the door is larger than usual, the door can be closed smoothly without causing a sudden rotation of the arm means and the door, and the door can be closed. It is possible to eliminate the generation of unpleasant noise due to a collision, to prolong the life, and to substantially negate the effect of the change in elastic force due to the temperature dependency of the coil spring, which is extremely small but slightly present compared to the gas spring. .

In the flip-up gate according to any one of the fourth to sixth aspects, the connection guide means includes, like the flip-up gate according to the seventh aspect, the other end portion of the connecting member being placed in a vertical plane. Even if it is rotatable and connected movably in the vertical direction,
Like the flip-up type gate of the eighth aspect, even if the other end of the auxiliary arm member is rotatably connected to the column in the vertical plane and is movably connected in the vertical direction, the ninth aspect of the spring In a state in which the connecting member and the auxiliary arm member are rotatably connected to each other at the other ends thereof in a vertical plane as in the case of a raised gate, the other end of the connecting member and the auxiliary arm member are connected to each other. The end and the column may be rotatably connected in the vertical plane and movably connected in the vertical direction.

In the flip-up gate according to the seventh aspect, the auxiliary arm member is turned in the vertical plane between the other end of the connecting member at the other end or outside the other end of the connecting member. It may be movably connected, in the flip-up gate of the eighth aspect, the connecting member is between the other end and one end of the auxiliary arm member at the other end or the other end of the auxiliary arm member. The flip-up gate according to the ninth aspect may be connected to the outside so as to be rotatable in a vertical plane, and the other end of the connecting member and the other end of the auxiliary arm member may be connected to each other with a common axis in the vertical plane. May be connected rotatably.

In the flip-up gate according to the tenth aspect of the present invention, in the flip-up gate according to any one of the fourth to ninth aspects, the connecting guide means may include a vertically extending guide provided on the column. A guide passage is provided, and the guide passage guides vertical movement of at least one of the other end of the connecting member and the other end of the auxiliary arm member.

The guide passage may be a slit, a groove, a ridge, or a rail provided on the column, and in such a guide passage, the connection guide means is similar to the flip-up gate of the eleventh aspect. A slider or a rotary member provided at at least one of the other end of the connecting member and the other end of the auxiliary arm member and fitted into the guide passage so as to be movable in the vertical direction. It is good to have a free roller.

In the flip-up gate according to any one of the fourth to eleventh aspects of the present invention, preferably, as in the flip-up gate according to the twelfth aspect, at the fully closed position of the door,
A straight line connecting the rotation axis of the main arm member in the vertical plane with respect to the support and the rotation axis of the connecting member in the vertical plane with respect to the main arm member is the rotation of the main arm member with respect to the support in the vertical plane. It extends at a depression angle with respect to the horizontal plane passing through the dynamic axis, and the pivot axis in the vertical plane of the auxiliary arm member with respect to the door and the pivot axis in the vertical plane of the auxiliary arm member with respect to the connecting member. Are extended at an angle of depression with respect to a horizontal plane passing through the rotation axis of the auxiliary arm member with respect to the connection member in the vertical plane, and the rotation axis of the connection member with respect to the main arm member in the vertical plane. The straight line connecting the center and the rotation axis of the auxiliary arm member in the vertical plane with respect to the connecting member forms an elevation angle with respect to a horizontal plane passing through the rotation axis of the auxiliary arm member in the vertical plane with respect to the connecting member. It is growing.

Further, in the flip-up gate of the present invention according to any one of the fourth to twelfth aspects, preferably, as in the thirteenth aspect, the main arm member and the auxiliary arm member are provided. When viewed from the side, the doors extend substantially parallel to each other when the door is completely closed, and extend crossing each other when the door is fully opened.

Further, in the flip-up gate of the present invention according to any of the fourth to thirteenth aspects, preferably, as in the flip-up gate of the fourteenth aspect, approximately 15 ° from the completely closed position. When the door is opened, the lower end of the door is close to the column side.

In the present invention, the elastic force applying means is rotatably connected to the arm means such that the elastic force applying means is rotated like the flip-up type gate of the fifteenth aspect, preferably with the rotation of the arm means. And a flexible member having one end connected to the cam plate and being bent and guided in contact with the cam edge of the cam plate. One end of the coil spring is a flexible member. , And the other end is connected to a support, respectively.

According to the flip-up gate of the fifteenth aspect,
Since one end of the coil spring is connected to the other end of the flexible member which is bent and guided in contact with the cam edge of the cam plate, a rotational moment applied to the cam plate based on the elastic force of the coil spring is provided. As a result that the desired elasticity can be obtained irrespective of the rotational position of the cam plate, an optimal elastic force can be applied to the arm means at the rotational position of the arm means.

Next, embodiments of the present invention will be described in more detail based on preferred examples shown in the drawings. The present invention is not limited to these examples.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. 1 to 8, a flip-up type gate 1 of this embodiment has a pair of upright hollow prisms 2 and 3 and a vertical surface at one end thereof. Arm means 81 and 82 rotatably supported in directions A and B
A door 13 attached to the other end of the arm means 81 and 82; and the other end of the main arm member 8 of the arm means 81 which is juxtaposed with the upper frame 27 of the door 13 and has one end 28 on the support 2 side. The reinforcing transverse member 30 having the other end 29 fixed to the other end 11 of the main arm member 9 of the arm means 82 on the column 3 side, and the door 13 based on the weight of the door 13 and the arm means 81 and 82. Arm means 81 in the lowering direction, ie, in the B direction
And the direction in which the door 13 flips up against the rotation of
The elastic force applying means 31 and 32 built in the columns 2 and 3 to apply the elastic force which is the rotational force in the direction to the arm means 81 and 82, and the lowering direction of the door 13, that is, the arm means 81 in the B direction and The columns 2 and 3 are configured to apply a viscous shear resistance force against the rotation of the arm 82 to the arm means 81 and 82.
And viscous shear resistance applying means 83 and 84 which are built in.

The arm means 81 and 82 are connected to the columns 2 and 3
At one end 4 and 5 via shaft members 6 and 7 so as to be rotatable in the A and B directions in the vertical plane, and at the other end 10 and 11 at the shaft member 12 (the column 3 side is not shown). ), The main arm members 8 and 9 made of square members to which the door 13 is attached so as to be rotatable in the C and D directions in the vertical plane, and one end portions 4 and 5 and the other end of the main arm members 8 and 9 Between the parts 10 and 11 at one end 14 (the support 3 side is not shown) via a shaft member 15 (the support 3 side is not shown), in the vertical plane.
And connecting members 16 and 17 made of square members rotatably connected in the directions F and F, and one end portions 18 and 19 to the door 13 in a vertical plane via a shaft member 20 (the supporting column 3 side is not shown). The connecting members 16 and 17 are connected rotatably in the J and K directions in the vertical plane via a shaft member 35 (the column 3 side is not shown) while being rotatably connected in the G and H directions. At least one of the auxiliary arm members 21 and 22 made of the rectangular material, the other ends 23 of the connecting members 16 and 17 (the column 3 side is not shown), and the other ends 24 and 25 of the auxiliary arm members 21 and 22. The other end 23, 24 and 25 in this example are connected to the columns 2 and 3 in the vertical plane by J and K.
Connection guide means 26 (not shown on the column 3 side), which is rotatable in the vertical direction and is movably connected in the vertical direction V and guides the movement of the other ends 23, 24 and 25 in the vertical direction V. I have it.

The door 13 includes, in addition to the upper frame 27, vertical frames 41 and 42, a number of horizontal grids 43 for bridging the vertical frames 41 and 42, a lower frame 44, and vertical frames 41 and 42. Stoppers 45 and 46 attached to the respective lower surfaces of the vertical frame 4
A bracket 47 (the column 3 side is not shown) fixed to 1 and 42 is provided. As the door 13, a horizontal lattice 43
However, the present invention is not limited to the one provided with a vertical lattice, but may be another one such as one provided with a vertical lattice. The shaft members 12 and 20 are attached to the bracket 47.

In the present embodiment, the support 2 and the support 3 have the same structure, and therefore, the support 2 will be mainly described below.

The connecting member 16 and the auxiliary arm member 21
The other ends 23 and 24 are connected to each other via a shaft member 35 so as to be rotatable in the J and K directions in a vertical plane.

The connecting guide means 26 is fixed to the support column 2 and extends in the vertical direction V and has a U-shaped cross section.
1, a roller 53 rotatably attached to the shaft member 35 and fitted in a guide passage 52 defined by the guide member 51 and extending in the vertical direction V, and prohibits the roller 53 from lowering by a certain amount or more. And a stopper 54,
In this way, the connection guide means 26 of the present example is composed of the guide passage 52 provided in the column 2 and extending in the vertical direction V, and the connection member 16.
And at least one of the other end 23 of the auxiliary arm member 21 and the other end 24 of the auxiliary arm member 21, in this example, both the other end 23 and 24 are provided via a shaft member 35 and are vertically V and a rotatable roller 53 fitted in the guide passage 52 so as to be movable.
3 and 24 are rotatable in the J and K directions in the vertical plane on the column 2 and movably connected in the vertical direction V, and guide the movement of the other ends 23 and 24 in the vertical direction V. ing.

In this example, the stopper 45 contacts the ground 55, and the door 13 is in the completely closed position (the position shown in FIG. 2) where the door 13 stands upright on the ground 55. The rotation axis 61 in the directions A and B (the axis of the shaft member 6) and the rotation axis 62 in the E and F directions in the vertical plane of the connecting member 16 with respect to the main arm member 8 A straight line 63 connecting the auxiliary arm member 21 to the door 13 in the G and H directions in a vertical plane with respect to the door 13 extends in a vertical plane with respect to a horizontal plane passing through the rotation axis 61. A straight line 66 connecting the dynamic axis 64 (the axis of the shaft member 20) and the rotational axis 65 (the axis of the shaft member 35) in the J and K directions in the vertical plane of the auxiliary arm member 21 with respect to the connecting member 16. Extends at a depression angle β with respect to a horizontal plane passing through the rotation axis 65, and A straight line 67 connecting the rotation axis 65 is
It extends at an elevation angle γ with respect to a horizontal plane passing through the rotation axis 65, and rotates in the directions C and D in the vertical plane of the main arm member 8 with respect to the door 13 (the axis of the shaft member 12). ) And the rotation axis 61 are shorter than the distance L2 between the rotation axis 64 and the rotation axis 65, and the main arm member 8 and the auxiliary arm member 21 are separated from the side. When the door 13 is opened by turning the main arm member 8 in the direction A from the fully closed position (the position shown in FIG. 2) to approximately 15 °, the door 13 Lower end 7
Numeral 1 is close to the column 2 side, and when the door 13 is fully opened (see FIG. 6), the main arm member 8 and the auxiliary arm member 21 extend so as to cross each other.

The elastic force applying means 31 built in the column 2
Is fixed to the shaft member 6 so that the arm means 81
A rotatable cam plate 85 connected to the arm means 81 so as to be rotated in the directions A and B with the rotation of the cam plate 8;
5, a roller chain 90 as a flexible member having one end 87 connected via a pin 86 and an intermediate portion 88 being bent and guided in contact with a cam edge 89 of a cam plate 85;
A connector 93 rotatably connected to the other end 91 of the roller chain 90 via a pin 92; a coil spring 96 having one end 94 hooked into a hole 95 of the connector 93; An end 97 is hooked into the hole 98 and has a connecting member 101 rotatably connected to the bracket 100 via a pin 99, and the bracket 100 is fixed to the support column 2, and thus the bracket 100 is fixed. , One end 94 of the coil spring 96 is connected to the other end 91 of the roller chain 90 via a connector 93.
7 is connected to the column 2 via a bracket 100 and a connecting tool 101.

The cam plate 85 has an abutting portion 102 which abuts against a stopper (not shown) fixed to the support column 2 so as to prevent further rotation, thereby defining a completely open door. The edge 89 includes an arc edge 103 centered on a rotation axis (rotation center of the shaft member 6 and the cam plate 85) 61 of the main arm member 8, and a straight edge 10 continuous with the arc edge 103.
4 is provided.

The elastic force applying means 31 includes only a coil spring 96 as a means for generating a contracting elastic force for rotating the arm means 81 in the direction in which the door 13 is flipped up (direction A). The contraction elastic force of the door 13 in the flip-up direction is substantially applied to the arm means 81 by the coil spring 96.

The viscous shear resistance applying means 83 is transmitted to the viscous shear resistance generating mechanism 111 for generating the viscous shear resistance and the viscous shear resistance generating mechanism 111 based on the rotation of the arm means 81 in the direction B. M about the center axis 110
In the rotation in the direction, the viscous shear resistance generating mechanism 111 is operated, while in the rotation in the L direction transmitted to the viscous shear resistance generating mechanism 111 based on the rotation of the arm means 81 in the direction A, the viscous shear resistance is generated. A one-way clutch 112 for disabling the generating mechanism 111 and a transmitting means 11 for transmitting the rotation of the shaft member 6 to the viscous shear resistance generating mechanism 111
3 is provided.

The viscous shear resistance generating mechanism 111 includes a housing 115 as one gap forming body integrally having a plurality of concentric annular projections on an inner surface, and an axial center in the housing 115 with respect to the housing 115. A plurality of concentric annular members rotatably accommodated in both the L and M directions around a center 110 and forming annular and cylindrical gaps 116 in the housing 115 in cooperation with a plurality of protrusions of the housing 115. And the viscous material 1 filled in the annular and cylindrical gap 116 between the gap forming body 117 and the housing 115.
18 are provided.

The viscous shearing resistance generating mechanism 111 generates a viscous shearing resistance on the viscous body 118 by the relative rotation of the housing 115 and the gap forming body 117 about the axis 110 in the L and M directions. It has become.

The one-way clutch 112 is interposed between the shaft member 121 fixed to the column 2 and the gap forming body 117, and when the gap forming body 117 rotates in the L direction,
The gap forming body 117 is idled with respect to the shaft member 121 to allow rotation of the gap forming body 117 in the L direction. When the gap forming body 117 rotates in the M direction, the gap forming body 117 is fixed to the shaft member 121. Thus, rotation of the gap forming body 117 in the M direction is prohibited.

The one-way clutch 112 is connected to the housing 11
5, the gap forming body 117 is fixed to the shaft member 121 having the axis 110 so that the gap forming body 117 is not rotated in the M direction. The viscous shear resistance generating mechanism 111 is operated so as to generate a viscous shear resistance in the viscous body 118 by causing a shear deformation in the viscous body 118, thereby causing the housing 11 to rotate.
5, the rotation in the L direction is transmitted to the shaft member 121.
The gap forming body 117 is allowed to idle in the L direction, and the gap forming body 117 is rotated in the L direction via the viscous body 118 together with the rotation of the housing 115 in the L direction. No relative rotation in the L and M directions is caused between the viscous bodies 11
8, the viscous shear resistance generating mechanism 111 is deactivated so as not to generate the viscous shear resistance.

The transmission means 113 includes a spur gear 131 fixed to the shaft member 6 and a spur gear 132 meshed with the spur gear 131 and fixed to the housing 115.
The transmission means 113 rotates the spur gear 131 fixed to the shaft member 6 when the main arm member 8 of the arm means 81 is rotated to rotate the shaft member 6 to which the main arm member 8 is fixed. Thus, the housing 115 is rotated in the L and M directions via the spur gear 132.

The elastic force applying means 32 and the viscous shear resistance applying means 83 are also built in the column 3 and are configured similarly to the elastic force applying means 31 and the viscous shear resistance applying means 84.

In the above-mentioned flip-up type gate 1, at the completely closed position, as shown in FIG. 2, the stopper 45 abuts on the ground 55, and the door 13 is substantially upright on the ground 55. In this state, when the door 13 is manually lifted and the main arm member 8 is rotated in the direction A via the shaft member 6, one end 14 is connected to the main arm member 8 via the shaft member 15. The connecting member 16 is dragged by the main arm member 8 while being rotated in the F direction with respect to the main arm member 8, so that the other end 24 of the connecting member 16
The auxiliary arm member 21 is slightly pulled toward the support column 2 as a whole by this rise, and the door 13 is moved with respect to the other end 10 of the main arm member 8 by this pulling. Pivoted in the D direction,
The door 13 rises with the lower end 71 standing almost upright on the ground 55 without protruding forward as shown by the locus abc in FIG. 9, and from the completely closed position (the position shown in FIG. 2). After the main arm member 8 is rotated in the direction A by about 15 °, the door 1 is rotated with the rotation of the main arm member 8 in the direction A.
3 rises with a locus cdef shown in FIG. 9 while its lower end 71 is slightly protruding forward. The lower end 7
While the door 1 rises with the trajectory e to f, the main arm member 8 and the auxiliary arm member 21 extend so as to cross each other.

In the fully opened state of the door 13 in which the lower end 71 is at the position of the locus f, the roller 53 contacts the stopper 54 and further lowering of the roller 53 is prohibited. Can no longer be rotated in the A direction.

To bring the door 13 from the fully open state to the completely closed state, the main arm member 8 may be rotated in the direction B via the shaft member 6 by manually pulling down the door 13. Even when the door 13 shifts to the completely closed state, the lower end 71 of the door 13 descends along the locus fedc-ba shown in FIG.

In the above-mentioned flip-up type gate 1, when the door 13 is manually lifted, the main arm member 8 is rotated in the direction A, and the cam plate 85 is also rotated similarly as shown in FIG. You. In this rotation, due to the tensile elastic force of the coil spring 96, the own weight of the door 13 and the like is appropriately canceled, and the manual door opening can be performed without difficulty. On the other hand, when a slight downward force is manually applied to the door 13, the main arm member 8 is rotated in the direction B, and the cam plate 85 is also rotated in the same direction. As a result, the tension elastic force of the coil spring 96 acts. The door can be closed with some reaction force.

Furthermore, in the flip-up type gate 1, when the door is opened, the rotation of the main arm member 8 in the A direction allows the gap forming body 117 to idle with respect to the shaft member 121 by the one-way clutch 112, resulting in a viscous state. The gap forming body 117 is rotated in the L direction via the body 118,
15 and the gap forming body 117 do not rotate relative to each other,
Thereby, the door can be opened without the viscous shear resistance from the viscous shear resistance generating mechanism 111.

On the other hand, in the flip-up type gate 1 when the door is closed, when the door 13 is manually lowered from the fully opened state shown in FIG. 10, the main arm member 8 is rotated in the B direction, and the main arm member 8 is moved in the B direction. Is rotated by the one-way clutch 112 to fix the gap forming body 117 to the shaft member 121, and conversely, relative rotation occurs between the housing 115 and the gap forming body 117, whereby the viscous body 118 is formed. The viscous shearing is performed, and a viscous shearing resistance corresponding to the viscous shearing appears in the housing 115, and the viscous shearing resistance applies a braking force to the rotation of the main arm member 8 in the B direction.

In the above-mentioned flip-up type gate 1, the arm means 81 is moved in the direction in which the door 13 is flipped up by the coil spring 96 only.
As a result, the temperature dependency can be eliminated as compared with the gas spring, so that regardless of the season, even when the manual force applied to the door 13 is larger than usual, Without causing the arm means 81 and the door 13 to rotate suddenly, the door 13 can be smoothly moved.
Can be opened and closed, and the generation of unpleasant noise due to the collision of the arm means 81 can be eliminated, the service life can be extended, and the door halfway open can be reliably maintained.

In addition, in the flip-up type gate 1, since the rotation of the arm means 81 in the lowering direction of the door 13 is braked by viscous shear resistance, a manual force applied to the door 13 when the door is closed is used. Is larger than normal,
The door can be closed smoothly without causing the arm means 81 and the door 13 to rotate suddenly, uncomfortable sound due to the collision of the door 13 can be eliminated, the life can be extended, and compared with the gas spring. Thus, it is possible to eliminate the influence of the change in the elastic force based on the temperature dependency of the coil spring 96 which is very small but somewhat present.

Further, in the flip-up type gate 1, the roller chain 9 which is bent and guided in contact with the cam edge 89 of the cam plate 85.
Since the one end 94 of the coil spring 96 is connected to the other end 91 of the cam plate 85, a rotational moment applied to the cam plate 85 based on the tensile elastic force of the coil spring 96 is applied to the cam plate 8.
As a result, it is possible to apply an optimum elastic force to the arm unit 81 at the rotational position of the arm unit 81 regardless of the rotation position of the arm 5.

Further, in the flip-up type gate 1, when the door 13 is opened, the door 13 is rotated in a direction in which the lower end 71 of the door 13 does not protrude, so that the front protruding of the door 13 can be minimized. In addition, it is possible to eliminate inconveniences such as an accident, operability deterioration, and the like caused by overhang, and to increase a use space in the door.

In the above example, the other end 23 of the connecting member 16 and the other end 24 of the auxiliary arm member 21 are connected to a common shaft member 35.
Are rotatably connected to each other by the
3, the other end 23 of the connecting member 16 and the other end 24 of the auxiliary arm member 21 are connected to the support column 2 via the connecting guide means 26, but instead of this, the connecting member 1
6 is connected to the shaft member 35 and the connection guide means 26 only.
Is directly connected to the column 2 through the auxiliary arm member 21.
May be rotatably connected to the connecting member 16 via another shaft member.
Only the other end 24 of the first shaft member 35 and the connection guide means 26
And the other end 23 of the connecting member 16 may be rotatably connected to the auxiliary arm member 21 via another shaft member.

[0057]

According to the present invention, as a result of eliminating the temperature dependence, the arm means and the door can be rapidly rotated regardless of the season even when the manual force applied to the door is larger than usual. The present invention provides a flip-up type gate that can smoothly open and close the door, eliminate the occurrence of unpleasant noise due to the collision of the arm means, has a long life, and can reliably maintain the door halfway open. it can.

Further, according to the present invention, it is possible to eliminate the protrusion to the front of the door as much as possible, and to prevent an accident caused by the protrusion,
It is possible to provide a flip-up gate that can eliminate inconveniences such as deterioration of operability and can widen a use space in the door.

[Brief description of the drawings]

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

FIG. 2 is an explanatory side view of one of the pillars in the example shown in FIG. 1;

FIG. 3 is a partially enlarged side view of the support column shown in FIG. 2;

FIG. 4 is a partially enlarged side view of the support column shown in FIG. 2;

FIG. 5 is an explanatory rear view of one of the columns in the example shown in FIG. 1;

FIG. 6 is an explanatory side view showing the inside of one of the columns in the example shown in FIG. 1;

FIG. 7 is an explanatory front view showing the inside of one of the columns in the example shown in FIG. 1;

FIG. 8 is an explanatory side view of the inside of one of the pillars, which is partially cut away in the example shown in FIG. 1;

FIG. 9 is an operation explanatory diagram of the example shown in FIG. 1;

FIG. 10 is an operation explanatory diagram of the example shown in FIG. 1;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 flip-up gate 2, 3 pillar 4, 5 end 8, 9 main arm member 10, 11 other end 13 door 14 one end 15 shaft member 16, 17 connecting member 18, 19 one end 21, 22 auxiliary arm member 23, 24, 25 Other end portion 26 Connection guide means 31 Elastic force applying means 81, 82 Arm means 83 Viscous shear resistance applying means 96 Coil spring

Claims (15)

[Claims] 1. A support, arm means rotatably supported at one end by the support in a vertical plane, a door attached to the other end of the arm means, and the weight of the door and the arm means. Elastic force applying means for applying elastic force to the arm means in the direction in which the door is flipped up, and viscous shear resistance for applying viscous shear resistance force to the arm means against rotation of the arm means in the direction of lowering the door. Force applying means, and the elastic force applying means includes a coil spring. The coil spring substantially applies an elastic force to the arm means in the direction in which the door flips up. A flip-up gate. 2. A support, arm means rotatably supported on the support at one end in a vertical plane, a door attached to the other end of the arm means, and the weight of the door and the arm means. Elastic force applying means for applying an elastic force to the arm means in the direction of the door flipping up, the elastic force applying means having an elastic force for rotating the arm means in the door flipping direction. A flip-up gate that has only a coil spring as the generator. 3. The flip-up gate according to claim 2, further comprising viscous shear resistance applying means for applying viscous shear resistance to the arm means against the rotation of the arm means in the direction of lowering the door. 4. A main arm member having one end rotatably supported in a vertical plane at one end of a column and a door rotatably mounted in a vertical plane at the other end. A connecting member rotatably connected at one end in a vertical plane between one end and the other end of the main arm member, and a door rotatably connected at one end to the door in a vertical plane; An auxiliary arm member in which the connecting member is rotatably connected in a vertical plane, and at least one other end of the other end of the connecting member and the other end of the auxiliary arm member as a support in a vertical plane. 4. A connection guide means according to any one of claims 1 to 3, further comprising a connection guide means rotatably connected to be movable in the vertical direction and guiding the vertical movement of the other end. A flip-up gate. 5. A support, an arm means rotatably supported at one end in a vertical plane on the support, a door attached to the other end of the arm means, and a dead weight of the door and the arm means. Elastic means for applying elastic force to the arm means in the direction in which the door is flipped up, and the arm means is rotatably supported at one end by a column in a vertical plane. A main arm member having a door rotatably mounted on the other end in a vertical plane, and one end of the main arm member rotatably connected in a vertical plane between one end and the other end. A connecting member, an auxiliary arm member rotatably connected at one end to the door in a vertical plane, and the connecting member rotatably connected within the vertical plane, and the other end of the connecting member. At least one of the other end of the auxiliary arm member and the other end of the auxiliary arm member are pivoted in a vertical plane. Connection guide means for movably connecting in the vertical direction and guiding the movement of the one other end in the vertical direction, and the elastic force applying means includes a coil spring. A flip-up gate in which the coil spring applies elastic force to the arm means in the flip-up direction of the door. 6. The flip-up gate according to claim 5, further comprising a viscous shear resistance applying means for applying to the arm means a viscous shear resistance force against the rotation of the arm means in the downward direction of the door. 7. The connection guide means according to claim 4, wherein the other end of the connection member is rotatably connected to the column in a vertical plane and movably connected in the vertical direction. Flip gate. 8. The connecting guide means according to claim 4, wherein the other end of the auxiliary arm member is rotatably connected to the column in a vertical plane and movably connected in the vertical direction. The flip-up gate described. 9. The connecting member and the auxiliary arm member are connected to each other at their other ends so as to be rotatable in a vertical plane, and the connection guide means includes the other end of the connecting member and the auxiliary arm member. The flip-up gate according to any one of claims 4 to 6, wherein the other end of the gate is rotatably connected to the column in a vertical plane and movably in a vertical direction. 10. The connecting and guiding means includes a vertically extending guide passage provided on a support, wherein the guide passage comprises:
The flip-up type according to any one of claims 4 to 9, which guides vertical movement of at least one of the other end of the connecting member and the other end of the auxiliary arm member. The gate. 11. The connecting guide means is provided at at least one of the other end of the connecting member and the other end of the auxiliary arm member, and is provided so as to be vertically movable. The flip-up gate according to claim 10, further comprising a slider or a rotatable roller fitted to the gate. 12. In the fully closed position of the door, a straight line connecting the pivot axis of the main arm member in the vertical plane with respect to the support and the pivot axis of the connecting member in the vertical plane with respect to the main arm member is:
The auxiliary arm extends at a depression angle with respect to the horizontal plane passing through the pivot axis of the main arm member with respect to the support in the vertical plane, and the pivot axis of the auxiliary arm member with respect to the door in the vertical plane and the auxiliary arm with respect to the connecting member. The straight line connecting the rotation axis of the member in the vertical plane extends at a depression angle with respect to a horizontal plane passing through the rotation axis of the auxiliary arm member in the vertical plane with respect to the connecting member, and the main arm member A straight line connecting the rotation axis of the connecting member in the vertical plane with respect to the connecting member and the rotation axis of the auxiliary arm member in the vertical plane with respect to the connecting member is the rotation of the auxiliary arm member in the vertical plane with respect to the connecting member. The flip-up gate according to any one of claims 4 to 11, which extends at an elevation angle with respect to a horizontal plane passing through the axis. 13. The main arm member and the auxiliary arm member,
The flip-up type according to any one of claims 4 to 12, wherein when viewed from the side, the doors extend substantially parallel to each other in a fully closed position of the door, and extend to cross each other in a fully opened position of the door. Gate. 14. The flip-up device according to claim 4, wherein when the door is opened from the fully closed position to approximately 15 °, the lower end of the door is close to the column side. Ceremony gate. 15. An elastic force applying means, comprising: a rotatable cam plate connected to the arm means so as to be rotated together with the rotation of the arm means; an end connected to the cam plate; A flexible member which is bent and guided in contact with the cam edge, wherein one end of the coil spring is connected to the other end of the flexible member, and the other end is connected to the column. The flip-up gate according to any one of items 1 to 14.