JP3651149B2 - Flip-up gate - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a flip-up gate suitable for use in an entrance of a garage or the like.
[0002]
[Problems to be solved by the invention]
As this type of gate, as described in Japanese Patent Application Laid-Open No. 7-279564, etc., a support, an arm rotatably supported by the support at one end, a door attached to the other end of the arm, 2. Description of the Related Art There is known a device provided with an elastic force applying means including a coil spring and a gas spring that applies an elastic force to an arm in the direction in which the door is flipped up against its own weight.
[0003]
By the way, the flip-up type gate of the kind described in the above publication is applied manually by applying a spring-up force against the respective weights of the arm and the door to the arm by a coil spring and a gas spring. The door is easy to open, but when the manual force applied to the door is large when the door is opened, this large manual force is applied to the arm in addition to the elastic flip-up force, so the arm is pivoted vigorously As a result, the arm may collide with a stopper or the like, generating unpleasant noise and shortening the service life of the door. In addition, when manually closing the door, if a large manual force is applied to the door, the same inconvenience may occur.
[0004]
The present invention has been made in view of the above-described points, and the object thereof is to prevent the arm means and the door from suddenly turning even when the manual force applied to the door is larger than usual. Furthermore, it is possible to smoothly open and close the door, eliminate the generation of unpleasant noise due to the crash of the arm means, and provide a flip-up type gate with a long life.
[0005]
[Means for Solving the Problems]
According to the present invention, the object is to provide a support, arm means supported at one end so as to be rotatable in a vertical plane, a door attached to the other end of the arm means, and the weight of the door and arm means. The elastic force applying means for applying an elastic force to the arm means in the direction in which the door is flipped up, and the casing is accommodated in the casing so as to be rotatable relative to the casing and cooperates with the casing. A gap forming body for forming a gap in the casing and a viscous body filled in a gap between the gap forming body and the casing, and one of the gap forming body and the casing is against the column. It is provided to be rotatable and resists the rotation based on the viscous shear generated in the viscous body between the casing and the gap forming body rotated relatively to each other in the rotation of the arm means by the opening and closing door. A viscous shear resistance imparting means for imparting a shearing shear force to the arm means, and a transmission mechanism for transmitting the rotation of the arm means to one of the gap forming body and the casing that is rotatably provided to the support column. The elastic force applying means includes a cam plate fixed to the arm means so as to be rotated with the rotation of the arm means, one end connected to the cam plate, and an intermediate contact with the cam edge of the cam plate. A chain that is bent and guided in contact with it, and a coil spring having one end attached to the other end of the chain and the other end attached to the column, and the cam edge is located at an intermediate portion on one end side of the chain. an arc edge around the center of rotation of the arm means while bending the guide, and comprises a straight edge to guide the intermediate portions of the other end of the chain together are contiguous to the arc edge, transfer Mechanism, arm hand A sprocket wheel provided on one side, a sprocket wheel provided on one of the gap forming body and the casing that is provided to be rotatable with respect to the column, and a chain that spans the two sprocket wheels. Achieved by a flip-up gate.
[0006]
In the present invention, when the gap between the forming body is fixed to the support side, the casing is rotatable, instead of this, when the casing is fixed to the support side, the gap forming member is rotatably It is said .
[0007]
The gap forming body includes a plate body. In a preferable example, the gap body has a plurality of concentric projections. In this case, the casing is a recess for receiving the projections. Are formed concentrically. In addition, as a clearance gap formation body, it is not limited to said thing, You may comprise and comprise a cylindrical body or a cylindrical body .
[0008]
The elastic force applying means preferably includes a pair of coil springs having different elastic coefficients and arranged concentrically.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
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.
[0010]
【Example】
1 to 5, the flip-up type gate 1 of the present example is rotatable in a vertical plane with a pair of upright columns 2 and 3 and one end 4 and 5 at each of the columns 2 and 3. A pair of arm means 6 and 7 supported rotatably in the R direction, a door 10 attached to the other end 8 and 9 of each of the arm means 6 and 7, and a dead weight of the door 10 and the arm means 6 and 7. The elastic force applying means 11 and 12 for applying an elastic force to the arm means 6 and 7 respectively in the direction in which the door 10 is flipped up, and the rotation of the arm means 6 and 7 by the opening / closing door resist the rotation. Viscous shear resistance applying means 13 and 14 for applying a viscous shear resistance force to the arm means 6 and 7 respectively.
[0011]
In this example, an elastic force applying means 11 and a viscous shear resistance applying means 13 are provided on the support column 2 side, and an elastic force applying means 12 and a viscous shear resistance applying means 14 are provided on the support column 3 side. However, the elastic force applying means and the viscous shear resistance applying means may be provided only on one of the columns 2 and 3 side, and the elastic force applying unit and the viscosity may be provided on the column 2 side. Either one of the shear resistance applying means and the other of the elastic force applying means and the viscous shear resistance applying means may be provided on the support column 3 side. Hereinafter, the column 2 side will be described, and the column 3 side is configured in the same manner, and the description thereof will be omitted.
[0012]
In this example, the support column 2 is made of a hollow body, and an elastic force applying means 11, a viscous shear resistance applying means 13 and a transmission mechanism 15 described later are accommodated in the hollow body.
[0013]
The arm means 6 includes an arm member 21 having a rectangular cross section and a shaft 23 in which one end 4 of the arm member 21 is fitted to one end 22, and the shaft 23 is rotatably supported by the column 2. Thus, the arm means 6 is supported at one end 4 on the support column 2 so as to be rotatable in the R direction. In this example, the arm means 6 includes only one arm member 21, but instead includes a plurality of arm members as described in JP-A-7-279564. May be configured. A reinforcing member 24 is attached between the door 10 and the arm member 21. A stopper (not shown) that prevents the arm member 21 from rotating beyond the vertical rotation state is provided on the support 2.
[0014]
The door 10 of this example is provided with a large number of horizontal grids 25 for blindfolding, but is not limited thereto, and may be other types such as those provided with vertical grids.
[0015]
The elastic force applying means 11 includes a cam plate 31 fixed to the shaft 23 of the arm means 6 so as to rotate with the rotation of the arm means 6, and one end 34 of the piston rod 33 via the pin 32 to the cam plate 31. Is connected to the bracket 37 attached to the support column 2 via a pin 38 and a pin 40 to the cam plate 31 via a pin 40. A chain 47 having one end 41 connected, a middle 42 in contact with the cam edge 43 of the cam plate 31 and being guided by bending, and a second end 44 rotatably connected via a pin 45; vignetting Installing the other end 44 of each end 51 and 52 is the chain 47, the other ends 54 and 55 and a coil spring 59 and 60 of a pair mounted via a bracket 56 to the standoff 2 Bei and has a pair of coil springs 59 and 60 arranged concentrically is made from the modulus of elasticity different from each other. The cam edge 43 includes an arc edge 61 centered on the rotation center of the shaft 23 that is also the rotation center of the arm means 6, and a linear edge 62 continuous to the arc edge 61. One ends 51 and 52 of the coil springs 59 and 60 are hooked in the holes 53 of the coupling 46 of the chain 47, and the other ends 54 and 55 of the coil springs 59 and 60 are of the coupling 57 attached to the bracket 56. It is caught in the hole 58. The bracket 56 is attached to the column 2.
[0016]
The connector 57 has a screw portion 65, and a nut 66 for adjusting the spring force is screwed to the screw portion 65 and is attached to the bracket 56, and the screwing amount of the nut 66 to the screw portion 65 is fixed. By changing the above, the elastic force generated by the coil springs 59 and 60 can be adjusted. In this example, since the elastic force applying means 11 includes a pair of coil springs 59 and 60, one coil spring 59 is responsible for most of the spring-up force, and the other coil spring 60 is finely adjusted. It can be used for use. The gas spring 39 and the coil springs 59 and 60 rotate the cam plate 31 in the clockwise direction in FIG. 2 by their respective elastic forces.
[0017]
Viscous shear resistance applying means 13, the gap between the casing 71, is housed in the casing 71 as against the casing 7 1 becomes rotatable relative direction R, in cooperation with the casing 71 into the casing 71 And a viscous body 74 made of a fluid such as silicone oil filled in the gap 72 between the gap forming body 73 and the casing 71. The casing 71 includes two halved members 76 and 77 formed symmetrically, and these are integrally formed by a rivet 78 or the like. In this example, the casing 71 is fixed to the support column 2 by a pin 75 so as not to rotate in the R direction, and the gap forming body 73 is a disk-shaped plate body 80 having stepped portions 79 formed on both sides thereof. And a shaft 81 that passes through the plate body 80 and is fixed to the plate body 80. The shaft 81 is rotatably supported by the support column 2 and is rotatable in the R direction with respect to the casing 71. Each step 79 is provided with a seal ring 82 for preventing the viscous body 74 from leaking out. The viscous shear resistance applying means 13 generates a viscous shear resistance on the viscous body 74 by rotating the plate member 80 of the gap forming body 73 in the R direction in the casing 71, and the generated viscous shear resistance is generated. Based on this, a viscous shear resistance force against the rotation of the arm means 6 is applied to the arm means 6 .
[0018]
The transmission mechanism 15 for transmitting the rotation of the arm means 6 in the R direction to the gap forming body 73 includes a sprocket wheel 85 fixed to the shaft 23 and a sprocket provided to the shaft 81 of the gap forming body 73. A wheel 86 and a chain 87 spanned between the two sprocket wheels 85 and 86 are provided. The transmission mechanism 15 transmits the rotation of the arm member 21 in the R direction to the shaft 81 by the rotation of the sprocket wheel 85, the travel of the chain 87, and the rotation of the sprocket wheel 86, thereby rotating the plate body 80.
[0019]
In the flip-up gate 1 formed as described above, when the door 10 is lifted manually, the arm member 21 is rotated upward in the R direction, and the cam plate 31 is also rotated in the same manner. In this rotation, due to the elastic pulling force of the coil springs 59 and 60 and the air elastic extension force of the gas spring 39, the dead weight of the door 10 and the like is appropriately canceled, and the manual opening can be performed without difficulty. On the other hand, the same applies to the case of closing the door, and it is possible to easily close the door by the action of the pulling force of the coil springs 59 and 60 and the extension force of the gas spring 39 by manually applying a slight downward force to the door 10. it can.
[0020]
Further, in the flip-up type gate 1, when the door is opened or closed, relative rotation in the R direction within the casing 71 of the plate member 80 occurs, whereby the viscous shear resistance force based on the viscous shear of the viscous member 74 is applied to the arm member 21. Even if the delicate balance between the elastic pulling force of the coil springs 59 and 60 and the aeroelastic extension force of the gas spring 39 is lost, the smooth opening and closing of the coil springs 59 and 60 is not affected by this. Can be obtained. Further, when the lifting force or the pulling force applied to the door 10 is relatively large and the arm member 21 is about to be suddenly rotated in the R direction, the relative rotation in the R direction within the casing 71 of the plate member 80 is faster. As a result, the viscous shear resistance force generated by the viscous body 74 increases, and this large viscous shear resistance force is applied to the arm member 21, so that the arm member 21 has a braking force substantially proportional to the rotational speed. Therefore, it is possible to avoid a situation in which the door 10 suddenly rotates and collides with the ground or the stopper to generate unpleasant noise.
[0021]
In the above example, the gap forming body 73 is configured by the plate body 80 having no unevenness. Instead, as shown in FIG. 6, a plurality of protrusions 91 are formed concentrically on both surfaces of the plate body 80. In this case, the casing 71 may be formed concentrically with a recess 92 for receiving the projection. Between the gap forming body 73 having the projection 91 and the casing 71 having the recess 92, The gap 72 may be filled with a viscous body 74 and operated in the same manner as described above. In addition, as the transmission mechanism 15, the gap forming body 73 and the casing 71 that are provided rotatably with respect to the support column 2, in the above example, between the gap forming body 73 and the shaft 23 of the arm means 6. The gap mechanism 73 may be constituted by a gear mechanism having a plurality of meshed gears interposed between the arm means 6 and the rotation of the arm means 6 so as to directly transmit the rotation of the arm means 6 to the gap formation body 73. 6 may be configured to have a common axis.
[0022]
【The invention's effect】
As described above, according to the present invention, even when the manual force applied to the door is larger than usual, the door can be opened and closed smoothly without causing rapid rotation of the arm means and the door. The generation of unpleasant noise due to the collision of the means can be eliminated, and the life can be extended.
[Brief description of the drawings]
FIG. 1 is a perspective view of a preferred embodiment of the present invention.
FIG. 2 is an explanatory side view of the upper portion of the column of the embodiment shown in FIG. 1;
FIG. 3 is an explanatory side view of the lower portion of the column of the embodiment shown in FIG. 1;
4 is an explanatory front view of the upper portion of the column of the embodiment shown in FIG. 1; FIG.
FIG. 5 is an explanatory plan view of the viscous shear resistance applying unit of the embodiment shown in FIG. 1;
FIG. 6 is a plan cross-sectional explanatory view of another viscous shear resistance applying unit that can be applied to the embodiment shown in FIG. 1;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Bounce-up type gate 2 Column 6 Arm means 10 Door 11 Elastic force provision means 13 Viscous shear resistance force provision means

Claims (3)

A strut, arm means supported at one end so as to be rotatable in a vertical plane on the strut, a door attached to the other end of the arm means, and a direction in which the door jumps up against its own weight An elastic force applying means for applying an elastic force to the arm means, and a gap that is accommodated in the casing so as to be relatively rotatable with respect to the casing and forms a gap in the casing in cooperation with the casing. The formed body and the viscous body filled in the gap between the gap forming body and the casing are provided, and one of the gap forming body and the casing is provided rotatably with respect to the support column. Based on the viscous shear generated in the viscous body between the casing and the gap forming body rotated relative to each other in the rotation of the arm means by the opening and closing door, the arm means generates a viscous shear resistance force against the rotation. A viscous shear resistance imparting means for imparting, and a transmission mechanism for transmitting the rotation of the arm means to one of the gap forming body and the casing that is rotatably provided with respect to the support column. The means includes a cam plate fixed to the arm means so as to be rotated with rotation of the arm means, a chain that is connected to the cam plate at one end, and is bent and guided in contact with the cam edge of the cam plate. And a coil spring having one end attached to the other end of the chain and the other end attached to the support column, and the cam edge bends and guides an intermediate portion on the one end side of the chain and rotates the arm means. an arc edge around the dynamic center, and comprises a straight edge to guide the intermediate portions of the other end of the chain together are contiguous to the arc edge, the transmission mechanism is provided on the arm means Sprocket Eel and, flip-up gates are provided with a sprocket wheel provided on one rotatably provided with respect to the column, and a chain entrained on both the sprocket wheel of the gap forming member and the casing. The gap forming body includes a plate body, the plate body is formed with a plurality of concentric projections, and the casing is formed with concentric recesses for receiving the projections. Item 5. The flip-up gate described in item 1 . 3. The flip-up gate according to claim 1, wherein the elastic force applying means includes a pair of coil springs arranged concentrically, and the pair of coil springs have different elastic coefficients.

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