JP2021181703A - Flip-up gate door - Google Patents

Abstract

To provide a flip-up gate door which can suppress a delay in the initial motion of the closure of a door body.SOLUTION: A flip-up gate door comprises: a hollow column; a vertical motion unit 60 which vertically moves in the column; a frame unit 70 which is arranged in the column; a rotation arm whose base end side is attached to a rotation shaft 77 of a cam body 75 of the frame unit 70; a door body which is supported on the tip side of the rotation arm; and a biasing unit which upwardly biases the vertical motion unit 60 in the column. The vertical motion unit 60 is provided with a cam receiver 67 on which the cam body 75 is slidably mounted. An attachment body 791 is installed on the upper side with respect to the cam body 75 on a guide frame 71 of the frame unit 70. A tension adjustment bolt 792 for pressing down the cam body 75 is attached so as to be able to advance/retract with respect to the cam body 75 is attached to the attachment body 791.SELECTED DRAWING: Figure 9

Description

The present invention relates to a flip-up gate that opens and closes an entrance / exit of a garage or the like. It relates to a flip-up gate with a door body supported on the tip side of the arm.

Conventionally, as a flip-up type gate, a flip-up type automatic opening / closing gate is known in which a door body is flipped up and rotated to open by driving a motor, and the door body is lowered and rotated to close (see Patent Document 1). This flip-up automatic opening / closing gate consists of a pair of stanchions erected on the ground, a first arm and a second arm whose base end is rotatably attached to the stanchion, and a first arm and a second arm. It is equipped with a door body attached to the tip. The stanchions include the motor, the drive sprocket attached to the motor, the driven sprocket located below the drive sprocket, the chain hung around the drive sprocket and the driven sprocket, and the reciprocating motion attached to the chain. A body is built in, and the reciprocating motion body is interlocked with a lever attached to the rotation shaft of the first arm. Further, a balance spring that balances the weight of the door body 5, the first arm, the second arm, and the like is attached to the lever.

Further, a stopper screw that comes into contact with the lever when the door body is in the open position is mounted on the support column via a mounting plate. In the flip-up type automatic opening / closing gate, the opening position of the door body can be adjusted by screwing in or unscrewing the stopper screw.

Japanese Unexamined Patent Publication No. 10-046968

By the way, in the flip-up type automatic opening / closing gate described in Patent Document 1, the lever is engaged in the vertical direction with respect to the reciprocating moving body, and when the reciprocating moving body moves upward, the lever rotates upward. Further, even if the reciprocating body moves downward, the lever does not separate from the reciprocating body and rotates downward. Therefore, in this flip-up type automatic opening / closing gate, the stopper screw only needs to be able to adjust the opening position of the door body.
Here, if the lever is mounted on the reciprocating motion body, the lever rotates upward due to the upward movement of the reciprocating motion body, while the lever is the weight of the door body or the like when the reciprocating motion body moves downward. This causes the door to rotate downward, which may delay the initial closing movement of the door body.

An object of the present invention is to provide a flip-up type gate capable of suppressing a delay in the initial closing of a door body.

The flip-up gate of the present invention includes a hollow strut, a drive motor installed in the strut, a vertical movement unit that moves up and down in the strut by the drive motor, and a guide frame arranged in the strut. A frame unit having a cam body that is rotationally guided up and down by the guide frame, a rotation arm to which a proximal end side is attached to the rotation axis of the cam body, and support on the tip end side of the rotation arm. The door body is provided with an urging unit for urging the vertical movement unit upward in the support column, and the vertical movement unit is provided with a cam receiver on which the cam body is slidably mounted. The guide frame is characterized in that a mounting body is installed on the upper side of the cam body, and a tension adjuster that pushes the cam body downward is mounted on the mounting body so as to be able to move forward and backward with respect to the cam body. do.

According to the present invention, it is possible to provide a flip-up type gate capable of suppressing a delay in the initial closing of the door body.

The perspective view which shows the flip-up type gate which concerns on embodiment of this invention. The perspective view which shows the support of the flip-up type gate which concerns on the said embodiment from the front side. The perspective view which shows the support of the flip-up type gate which concerns on the said embodiment from the rear side. The perspective view which shows each unit in the support | support of the flip-up type gate which concerns on the said embodiment. The perspective view which shows each unit of the flip-up type gate which concerns on the said embodiment. The perspective view which shows the cam body and the vertical movement unit of the flip-up type gate which concerns on the said embodiment. The perspective view which shows the vertical movement unit of the flip-up type gate which concerns on the said embodiment unfolded. The perspective view which shows the support of the flip-up type gate and each unit which concerns on the said embodiment. The perspective view which shows the cam body and the vertical movement unit of the flip-up type gate which concerns on the said embodiment.

[Structure of this embodiment]
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In FIGS. 1 to 5, the flip-up gate 1 according to the present embodiment is an electric up gate, and is a pair of columns 2 (columns), a drive motor 3 installed in the columns 2, and a drive motor 3. A vertical movement unit 60 that moves up and down in the support column 2, a frame unit 70 having a guide frame 71 arranged in the support column 2 and a cam body 75 that is vertically rotated and guided by the guide frame 71, and a cam body 75. The rotation arm 4 to which the base end side is attached to the rotation shaft 77, the door body 5 supported by the tip end side of the rotation arm 4, and the vertical movement unit 60 being urged upward in the support column 2. It is equipped with a force unit 80.
In the following description, the left-right direction of the flip-up gate 1 is the X-axis direction, the vertical direction of the flip-up gate 1 is the Y-axis direction, and the expected direction (depth direction) of the flip-up gate 1 is the Z-axis direction. do. The X, Y, and Z axis directions are orthogonal to each other.

As shown in FIGS. 1 to 3, the pair of columns 2 have a front surface portion 21, a rear surface portion 22, and left and right side surface portions 23, 24 continuous to the front surface portion 21 and the rear surface portion 22, and have a hollow cross section. A pillar 25 formed in a rectangular shape, a cover material 26 attached to the side surface portion 23, a wiring cover material 27 attached to the rear surface portion 22, and a resin pillar attached to the opening end portion at the upper end of the pillar material 25. It is equipped with a cap 28. The pillar material 25, the cover material 26, and the wiring cover material 27 are each formed of an extruded aluminum profile. Inside the pillar 25, a drive motor 3, a frame unit 70, a vertical movement unit 60, an urging unit 80, a control device 6 for controlling the drive motor 3, and an angle sensor for detecting the rotation angle of the cam body 75 are detected. 7 (see FIG. 9) and a receiver for remote control (not shown) are installed. The side surface portions 23 of the pair of columns 2 are arranged on the other column 2 side with respect to the side surface portions 24. An opening 231 is formed on the side surface portion 23 so that equipment such as a control device 6 can be inspected. A plurality of wiring ports 221 for leading out wiring 9 connected to devices such as a drive motor 3, a control device 6, an angle sensor 7, and a receiver are formed on the rear surface portion 22. The cover material 26 is arranged so as to close the opening 231 of the side surface portion 23, and the wiring cover material 27 is arranged so as to cover the wiring 9 derived from the wiring port 221 described above. A receiver is attached to the pillar cap 28.

As shown in FIG. 4, the drive motor 3 is attached to a frame cover 714 described later of the guide frame 71, and a pinion gear 32 is attached to the rotating shaft 31 thereof.
The rotating arm 4 includes a bracket 41 attached to the rotating shaft 77 of the cam body 75, a main arm 42 attached to the bracket 41, and a sub-arm axially supported at a position radially separated from the rotating shaft 77. The door body 5 is attached to the tips of the main arm 42 and the sub arm 43. In this rotating arm 4, the main arm 42 rotates with the rotation of the rotating shaft 77 in the R direction (see FIG. 5), and the sub arm 43 rotates following the rotation of the main arm 42. The door body 5 is opened and closed between the lower closed position and the upper open position.
The door body 5 is configured by arranging a grid 52 in a door frame 51 having a four-circumferential framework, and the left and right side portions of the door frame 51 are rotatably supported by the tips of the main arm 42 and the sub arm 43. ing.

The frame unit 70 includes the guide frame 71 and the cam body 75 described above as shown in FIGS. 4 and 5.
The guide frame 71 includes a front frame 711 and a rear frame 712, and left and right frame covers 713 and 714 connected to the front frame 711 and the rear frame 712. The frame covers 713 and 714 are formed with bow-shaped guide elongated holes 72 for vertically guiding the guide rollers 782, which will be described later, and the rotation shaft 77 of the cam body 75 penetrates the frame cover 713. As shown in FIG. 6, a receiving member 73 that receives the vertical movement unit 60 is attached to the frame cover 714. The receiving member 73 is formed in a substantially L-shaped cross section, and moves up and down by hitting the mounting bracket 671 of the cam receiving 67, which will be described later, from below before installing the frame unit 70 and the vertical movement unit 60 in the support column 2. Suppresses the downward dropout of the unit 60 with respect to the frame unit 70. Further, even when the frame unit 70 and the vertical movement unit 60 are taken out from the inside of the support column 2, the receiving member 73 hits the mounting bracket 671 of the cam receiving 67 from below, so that the vertical movement unit 60 falls off downward with respect to the frame unit 70. Suppress. For convenience of explanation, the frame cover 713 is not shown in FIGS. 5 and 6.
As shown in FIG. 5, the cam body 75 has a cam body 76 arranged above the drive motor 3 and a rotation shaft 77 to which the cam body 76 is attached and pivotally supported by the frame covers 713 and 714. And a contact cam 78 connected to the cam body 76. The cam body 76 is rotatably arranged up and down in the R direction around the rotation shaft 77. An angle sensor 7 (see FIG. 9) that detects the rotation angle of the cam body 76 is attached to the cam body 76. The contact cam 78 was attached to the contact cam body 781 rotatably connected to the cam body 76 at a position on the tip side of the cam body 76 away from the rotation shaft 77, and to the contact cam body 781. It includes a left and right guide roller 782 and a guide roller pin 783 (see FIG. 9) installed between the left and right guide rollers 782. The left and right guide rollers 782 are arranged in the guide elongated holes 72 of the frame covers 713 and 714, and are guided up and down along the guide elongated holes 72. The guide roller pin 783 is arranged to abut on the cam receiver 67 described later.
Here, the control device 6 receives the rotation angle signal constantly detected by the angle sensor 7, and the door body is set to 0 ° as the rotation angle when the cam body 76 is in the diagonally downward state shown in FIG. 5, for example. When the closed position (fully closed position) of 5 is set, the rotation angle at which the cam body 76 rotates upward to be 90 ° may be set as the open position (fully open position) of the door body 5. In this case, the guide elongated hole 72 may have a length dimension that allows the cam main body 76 to rotate from a rotation angle of 0 ° to 95 °.

Further, as shown in FIGS. 5, 9 (A) and 9 (B), the frame unit 70 has a mounting body 791 formed of metal fittings having a U-shaped cross section screwed to the frame covers 713 and 714. The cam body 76 is provided with a tension adjusting bolt 792 as a tension adjusting tool attached to the mounting body 791 so as to be able to move forward and backward. The tension adjusting bolt 792 is arranged on the upper side in the rotation locus of the cam main body 76, and the tip thereof is oriented so as to be in contact with the cam main body 76 and is screwed to the mounting body 791. Therefore, the tension adjusting bolt 792 is screwed in to advance the cam body 76, while the tension adjusting bolt 792 is screwed back to retract the cam body 76. In the present embodiment, the tension adjustment bolt 792 is screwed in from the state shown in FIG. 9A, and the head of the tension adjustment bolt 792 is applied to the mounting body 791 to bring the tension adjustment bolt 792 into the state shown in FIG. 9B to complete the tension adjustment. And.

As shown in FIGS. 4 to 7, the vertical movement unit 60 is attached to a metal (made of extruded aluminum profile in this embodiment) chain rack receiver 61 (vertical movement main body) and a chain rack receiver 61 in the Y-axis direction. It includes a chain rack 62 mounted along the chain rack 62, which meshes with the pinion gear 32 of the drive motor 3.
The chain rack receiver 61 is formed with a through hole 63 extending in the Y-axis direction and penetrating vertically, and resin bushes 64 face each other in the vertical direction at the upper end and the lower end of the through hole 63. It is installed. Further, a groove portion 65 having a substantially U-shaped cross section is formed in the chain rack receiver 61 along the Y-axis direction, and the upper and lower guide bodies 66 are fitted in the groove portion 65. The upper and lower guide bodies 66 include a mounting member 661 screwed to the guide frame 71 (front frame 711 in this embodiment) and a vertical guide member 662 attached to the mounting member 661, and the upper and lower guide members 662 It is arranged in the groove portion 65. The chain rack receiver 61 is slidably in contact with the upper and lower guide members 662 arranged in the groove portion 65 in the Y-axis direction.
Further, a cam receiver 67 on which the guide roller pin 783 is mounted is attached to the upper end of the chain rack receiver 61. The cam receiver 67 includes a mounting bracket 671 screwed to the upper end of the chain rack receiver 61 to close the upper end of the through hole 63, and a resin sliding contact member 672 screwed to the upper surface of the mounting bracket 671. There is. The sliding contact member 672 extends in the Z-axis direction, and a grease groove 673 along the Z-axis direction is formed on the upper surface thereof. Therefore, the guide roller pin 783 slidably abuts on the upper surface of the sliding contact member 672 in the Z-axis direction, and the cam body 75 can rotate while smoothly sliding with respect to the cam receiving 67.

As shown in FIGS. 4 and 5, the urging unit 80 is arranged at the spring shaft 81 along the Y-axis direction, the compression coil spring 82 through which the spring shaft 81 penetrates, and the upper and lower ends of the compression coil spring 82. The upper and lower spring seats 83 and 84, the upper connecting body 85 through which the spring shaft 81 penetrates above the upper spring seat 83, and the lower fixed body through which the spring shaft 81 penetrates below the lower spring seat 84. The 86 and the guide pipe 89 that guides the compression coil spring 82 up and down are provided, and the split pins 87 and 88 are located above the upper connecting body 85 and below the lower fixed body 86 of the spring shaft 81. (Stop pins) are attached to each unit. The buckling of the compression coil spring 82 can be suppressed by providing the guide pipe 89 described above, but if the performance required for the urging unit 80 can be exhibited without this, the guide pipe 89 is omitted. May be good.
The portion of the spring shaft 81 above the upper connecting body 85 and the upper split pin 87 is inserted into the upper and lower bushes 64 of the vertical movement unit 60, whereby the spring shaft 81 penetrates the through hole 63. Be placed. Since the spring shaft 81 is inserted through the resin bush 64, it does not come into direct contact with the metal chain rack receiver 61, and sliding noise can be reduced. Further, the movement accuracy of the spring shaft 81 with respect to the chain rack receiver 61 can be improved as compared with the case where the spring shaft 81 comes into direct contact with the chain rack receiver 61 without the bush 64.
The upper connecting body 85 is composed of a connecting metal fitting having a substantially U-shaped cross section, and is detachably screwed (mechanically connected) to the lower end portion of the chain rack receiver 61.
The lower fixing body 86 has a front fixing portion 861 that can be arranged to face the inner surface of the front surface portion 21 of the support column 2, and a rear fixing portion 862 that can be arranged to face the inner surface of the rear surface portion 22 of the support column 2. It is composed of fixing brackets, and is fixed to the support column 2 by screwing both the front fixing portion 861 and the rear fixing portion 862 to the front surface portion 21 and the rear surface portion 22 of the support column 2 while being arranged inside the support column 2. It is supposed to be configured.

Hereinafter, an example of an assembly procedure in which the frame unit 70, the vertical movement unit 60, and the urging unit 80 are installed inside the support column 2 in the flip-up type gate 1 according to the present embodiment will be described.
First, a pre-unitized frame unit 70, a vertical movement unit 60, and an urging unit 80 are prepared. The upper and lower guide bodies 66 are screwed to the frame unit 70.
Next, the urging unit 80 and the vertical movement unit 60 are connected. Specifically, the spring shaft 81 of the urging unit 80 is inserted into the through hole 63 of the vertical movement unit 60 from below, and then the lower end of the chain rack receiver 61 is screwed to the upper connecting body 85 of the urging unit 80. do.
On the other hand, the frame unit 70 and the vertical movement unit 60 are combined. Specifically, the groove portion 65 of the vertical movement unit 60 is fitted to the vertical guide body 66 attached to the frame unit 70.
As described above, after connecting and combining the three units of the frame unit 70, the vertical movement unit 60, and the urging unit 80, this combination is combined with the upper opening end portion of the pillar material 25 of the support column 2 as shown in FIG. Insert from.
Finally, the lower fixing body 86 of the frame unit 70 and the urging unit 80 is screwed to the pillar 25. In this way, the frame unit 70, the vertical movement unit 60, and the urging unit 80 are installed inside the support column 2.

After installing the frame unit 70, the vertical movement unit 60, and the urging unit 80, devices such as the pillar cap 28, the drive motor 3, and the control device 6 are attached to the pillar 2. Then, the wiring work for connecting the wiring 9 between the devices such as the drive motor 3, the control device 6, the angle sensor 7 attached to the cam main body 76, and the receiver attached to the pillar cap 28 is performed. After performing the attachment work and the wiring work of each device, the wiring cover material 27 is attached to the pillar material 25. The cover material 26 may be attached before or after the wiring work.

Here, the initial tension of the flip-up gate 1 in the open state can be adjusted as shown in FIGS. 9A and 9B, and the tension adjusting procedure will be described below. Note that FIG. 5 shows the cam body 75 at the rotation closing position CL (the position where the door body 5 is fully closed (the position where the rotation angle is 0 °)), and FIG. 9B shows the rotation opening. The cam body 75 at the position OP (the position where the door body 5 is in the fully open position (the position where the rotation angle is 90 °)) is shown. FIG. 9A shows a state before tension adjustment by the tension adjusting bolt 792, and FIG. 9B shows a state after tension adjustment by the tension adjusting bolt 792.
In FIG. 9A, the vertical movement unit 60 is in a state where no urging force is applied above the urging unit 80, and the cam body 75 is at a position slightly beyond the rotation opening position OP (rotation angle of 90 ° or more). (Position of 95 ° or less). At this time, the tension adjusting bolt 792 is screwed forward to move forward, and while the tip thereof is pressed against the cam body 76, the tension adjusting bolt 792 is pushed down to the rotation open position OP against the urging force from the urging unit 80 to push the tension adjusting bolt 792. Further tighten to position the tension adjusting bolt 792. In this embodiment, the tension adjusting bolt 792 is tightened until the head of the tension adjusting bolt 792 hits the mounting body 791.
By pushing down in this way, tension can be generated using the urging force of the urging unit 80, and the upward force and the downward force on the cam body 75 can be balanced, and the cam body 75 can be moved up and down. It can be brought into close contact with 60. Then, when the vertical movement unit 60 is moved downward from the state where the cam body 75 and the vertical movement unit 60 are in close contact with each other by generating tension in this way, the cam body 75 opens the door as compared with the case where the tension is not generated. Since the door body 5 and the rotating arm 4 quickly rotate downward while receiving their own weight, it is possible to suppress the delay in the initial closing movement of the door body 5.
Further, since the tension adjusting bolt 792 is attached to the mounting body 791 so as to be able to advance and retreat, the tension adjusting bolt 792 is retracted as shown in FIG. 9A so that the cam body 75 is not rotationally urged downward. By arranging them, the frame unit 70, the vertical movement unit 60, and the urging unit 80 can be easily installed. The tension can be generated and adjusted by advancing the tension adjusting bolt 792 after installing the frame unit 70, the vertical movement unit 60, and the urging unit 80.

The work of taking out the installed frame unit 70, vertical movement unit 60, and urging unit 80 from the inside of the support column 2 can be performed in the reverse procedure of the above assembly procedure.

[Modification example]
In the above embodiment, the upper connecting body 85 of the urging unit 80 is detachably screwed (mechanically connected) to the lower end portion of the chain rack receiver 61, but the upper connecting body 85 is not mechanically connected in this way. The vertical movement unit 60 may only be mounted on the urging unit 80.
In the above embodiment, the cam receiver 67 includes a sliding contact member 672 made of resin, but the cam receiver 67 is not limited to the resin one, and may be provided with a member that slidably contacts the cam body 75.
In the above embodiment, the through hole 63 of the vertical movement unit 60 is equipped with a resin bush 64, but it does not have to be made of resin as long as it has a predetermined sliding performance, and is an oil-containing metal bush. You may. Further, the chain rack receiver 61 is not limited to being made of metal, and may be made of a member having sufficient strength to rotate the cam body 75, and may be made of resin, for example.
Furthermore, the configuration of the bush 64 may be omitted if the predetermined sliding performance can be exhibited without the bush 64.
In the above embodiment, the chain rack receiver 61 is formed with a through hole 63 through which the spring shaft 81 penetrates, but it may be a spring shaft insertion hole that does not penetrate at the upper end, or the spring shaft 81. The through hole 63 may be omitted when the structure does not project upward from the upper connecting body 85.
In the above embodiment, the lower fixed body 86 of the urging unit 80 is fixed to both the front surface portion 21 and the rear surface portion 22 of the support column 2, but if sufficient fixing strength can be obtained, the front surface portion 21 and the rear surface portion 22 are fixed. It may be fixed to only one of the left and right side surface portions 23, 24 instead of the front surface portion 21 and the rear surface portion 22.
In the above embodiment, the tension adjusting tool is configured by the tension adjusting bolt 792 which is a rigid body, but the tension adjusting tool is not limited to this, and may be a member having elasticity installed so as to be able to move forward and backward with respect to the cam body 75. .. In this case, by pressing the tension adjuster against the cam body 75, a downward force can be generated by using the elasticity of the tension adjuster, and by suspending the tension with the upward force due to the urging of the urging unit 80, tension can be generated. ..

[Summary of the present invention]
The flip-up gate of the present invention includes a hollow strut, a drive motor installed in the strut, a vertical movement unit that moves up and down in the strut by the drive motor, and a guide frame arranged in the strut. A frame unit having a cam body that is rotationally guided up and down by the guide frame, a rotation arm to which a proximal end side is attached to the rotation axis of the cam body, and support on the tip end side of the rotation arm. The door body is provided with an urging unit for urging the vertical movement unit upward in the support column, and the vertical movement unit is provided with a cam receiver on which the cam body is slidably mounted. The guide frame is characterized in that a mounting body is installed on the upper side of the cam body, and a tension adjuster that pushes the cam body downward is mounted on the mounting body so as to be able to move forward and backward with respect to the cam body. do.
According to the flip-up gate of the present invention, by advancing and retreating the tension adjuster, for example, the cam body at the upper end position in the rotation direction is pushed down, and the tension is generated by using the urging force of the urging unit. By balancing the upward force and the downward force on the cam body, the cam body can be brought into close contact with the vertical movement unit. Then, when the vertical movement unit is moved downward from the state where the cam body and the vertical movement unit are brought into close contact with each other by generating tension in this way, the cam body becomes a gate or a rotating arm as compared with the case where the tension is not generated. Since it quickly rotates downward while receiving its own weight, it is possible to suppress the delay in the initial closing of the door body.
In addition, since the tension adjuster can be attached to the attachment body so that it can move forward and backward, the frame unit and vertical movement unit can be placed by retracting the tension adjuster so that the cam body is not rotated and urged downward. And the urging unit can be easily installed. The tension can be generated and adjusted by advancing the tension adjuster after installing the frame unit, the vertical movement unit, and the urging unit.

In the flip-up gate of the present invention, the cam body includes a pair of guide rollers and a guide roller pin connected to the pair of guide rollers, and the guide frame is arranged on the left and right sides of the cam body. The pair of frame covers are provided with guide elongated holes for guiding the pair of guide rollers in the rotation of the cam body, and the cam receiver of the vertical movement unit has the guide roller pins. It may be slidably contacted.
According to such a configuration, the connection (non-mechanical fixing) between the guide roller pin of the cam body and the cam receiver eliminates the need for connection in a narrow space, and even if the cam body rotates up and down, the cam receiver can be used. Since it slides against it, it can rotate smoothly.

1 ... flip-up gate, 2 ... strut, 3 ... drive motor, 60 ... vertical movement unit, 67 ... cam receiver 70 ... frame unit, 71 ... guide frame, 75 ... cam body, 77 ... rotation shaft, 4 ... times Moving arm, 5 ... door body, 80 ... urging unit, 791 ... mounting body, 792 ... tension adjusting bolt (tension adjusting tool).

Claims (2)

A hollow strut, a drive motor installed in the strut, a vertical movement unit that moves up and down in the strut by the drive motor, and a guide frame and a guide frame arranged in the strut rotate up and down. A frame unit having a guided cam body, a rotation arm to which a proximal end side is attached to the rotation axis of the cam body, a door body supported by the tip end side of the rotation arm, and the inside of the support column. The vertical movement unit is provided with an urging unit that urges the unit upward.
The vertical movement unit is provided with a cam receiver on which the cam body is slidably mounted.
A mounting body is installed on the guide frame on the upper side of the cam body.
A flip-up gate characterized in that a tension adjuster that pushes down the cam body downward is attached to the mounting body so as to be able to advance and retreat to the cam body. In the flip-up gate according to claim 1,
The cam body includes a pair of guide rollers and a guide roller pin connected to the pair of guide rollers.
The guide frame includes a pair of frame covers arranged on the left and right sides of the cam body.
Each of the pair of frame covers is formed with guide elongated holes for guiding the pair of guide rollers in the rotation of the cam body.
A flip-up gate characterized in that the guide roller pin slidably abuts on the cam receiver of the vertical movement unit.

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