JPH0721837Y2 - Flip gate - Google Patents

Description

[Detailed description of the device] [The purpose of the device]

(Industrial application) The present invention relates to a flip-up gate that is installed at a garage, an entrance of a warehouse, etc. and is opened and closed by turning in the vertical direction. It relates to a flip-up gate that does not project significantly. (Prior Art) Conventionally, as a flip-up gate as described above, a door body is provided with a five-bar linkage mechanism composed of three link pieces as described in Japanese Utility Model Laid-Open No. 58-190598, for example. There was a device that was able to move between a vertically lower position and a horizontally upper position. (Problems to be solved by the invention) However, in the gate described in the above publication, there is a problem that the door main body overhangs greatly on the road side when opening and closing the door, which not only hinders passage, In particular, when the gate is electrically operated, there is a high risk of hitting a person or a vehicle attempting to enter the garage, and solving the above problems has been a problem of such a flip-up gate. (Purpose of the Invention) The present invention has been made to solve the problems of the conventional flip-up gates as described above, and when the gates are opened and closed, the gates do not project to the road side. The purpose is to provide a raised gate.

[Constitution of device]

(Means for Solving the Problem) The present invention comprises a first arm that pivots around a base end portion pivotally attached to a support column and pivotally attaches a door to the other end, and the first arm of the door. A second arm having one end pivotally attached to a lower position of the pivotal attachment;
A link in which one end is pivotally attached to the base end portion of the first arm and the other end is pivotally attached to the other end of the second arm, and the second arm and the link are associated with the upward rotation of the first arm. The structure is provided with a rotation restricting mechanism that makes the relative movement a fixed state after being fixedly moved, and is characterized in that the structure of such a flip-up gate is a means for solving the above-mentioned conventional problems. There is. (Operation) In the flip-up gate according to the present invention, the first arm has its base end pivotally attached to the column and the other end pivotally attached to the door. Therefore, the door always tries to maintain a vertical posture due to its own weight. On the other hand, the other end of the second arm whose one end is pivotally attached to the lower position of the pivotal attachment portion of the door with the first arm is connected to the other end of the link whose one end is pivotally attached to the base end of the first arm. Although pivotally attached, the pivotable portion has a limited range of relative movement with the link due to the rotation restricting mechanism, and can be moved only while the door is raised from the closed state to a predetermined height. It is like this. Therefore, while the door is in the low position, the movement of the second arm caused by holding the vertical posture of the door is absorbed by the rotation with the link, so that the door keeps the vertical posture. It does not rise and the door does not project to the road side. After the door reaches a predetermined height, the rotation restricting mechanism operates, and further rotation cannot be performed, and the second arm and the link are integrally rotated with the first arm. As a result, the door is a pivotal connection with the pillar.
The arm is pivoted to the horizontal position about the base end of the arm to be in a fully opened state. At this time, the vertical rise of the door shortens the distance between the base end of the first arm, which is the center of rotation, and the lower end of the door, so the amount of protrusion of the door during rotation is extremely small. (Embodiment) An embodiment of the present invention will be specifically described below with reference to the drawings. 1 and 2 illustrate one embodiment of the flip-up gate according to the present invention, and FIG. 1 shows its closed state and fully open state by solid lines and phantom lines, respectively. The flip-up gate 1 shown in the figure has a first arm 3 having a base end 3a pivotally attached to a column 2 and the other end pivotally attached to the door 4 near the upper end in this embodiment; A second arm 5 having one end pivotally attached to the vicinity of the central portion of the door 4, which is a position below the shaft attachment portion, and one end to a projecting piece 3b connected to the base end 3a of the first arm 3 and A link 6 having the other end pivotally attached to the other end of the second arm 5 is provided, and in this embodiment, a guide link 7 as a rotation restricting mechanism is provided as the link 6
And the second arm 5 are provided. The guide link 7 has one end pivotally attached to the other end of the second arm 5, that is, a position near the pivot attachment portion with the link 6, and has a length at the other end that extends over almost half of the entire length of the guide link 7. The slot 7a is provided with a slide pin 6a slidably fitted in the slot 7a. To open the flip-up gate 1 having the above structure, a door 4
When the lower end portion of the door 4 is lifted, the first arm 3 pivotally attached to the upper end portion of the door 4 starts to rotate counterclockwise in the figure around the base end portion 3a. Along with this, the second arm 5
Also rotates counterclockwise around the pivotal portion 5a with the link 6, and the slide pin 6a of the link 6 begins to slide in the slot 7a of the guide link 7. On the other hand, since the door 4 is in a state of being suspended by the first arm 3, the slide pin 6a freely slides in the slot 7a of the guide link 7 so that the second arm 5 and the link 6 are separated from each other. Within the range where it can be freely rotated, its own weight always raises while maintaining a vertical posture. As the door 4 moves up, the slide pin 6a advances in the slot 7a of the guide link 7 toward the side of the pivot link with the second arm 5 of the guide link 7, and when the door 4 reaches a predetermined height, the slide pin 6a slides. The pin 6a comes into contact with the end 7b of the slot 7a, so that the second arm 5 and the link 6 cannot be further rotated. FIG. 2 shows this state. When the door 4 is further raised, the second arm 5 and the link 6 are integrated by the guide link 7,
This time, the door 4 can be rotated around the base end portion 3a of the first arm 3 together with the first arm 3 to bring the door 4 into a fully opened state shown by a phantom line in FIG. As described above, in this embodiment, at the predetermined height, the door 4 rises in the vertical posture. Therefore, the door 4 does not project to the road side. Further, even when turning after reaching a predetermined height, the distance between the base end 3a of the first arm 3 which is the center of turning and the lower end of the door 4 is small due to the vertical rise. The amount by which the door 4 projects toward the road at the time of rotation is extremely small, and practically it is not a problem. 3 to 5 show another embodiment according to the present invention, and FIG. 3 shows the closed state and the fully opened state by a solid line and an imaginary line, respectively. The flip-up gate 10 shown in FIG. 3 has a first arm 12 having a base end 12a pivotally attached to a column 11 and the other end pivotally near the upper end of a door 13, and the first arm of the door 13. A second arm 14 having one end pivotally attached to the vicinity of the central portion, which is the lower position of the axle attachment portion with 12.
And a link 15 pivotally attached at one end to the base end 12a of the first arm 12 and at the other end to the other end of the second arm 14, respectively. Further, in this embodiment, the second arm 14 and the base end portion are provided on the outer edge of the link 15 curved in an arc shape.
Stoppers 15a and 15b that come into contact with 12a to limit the rotation are provided (see FIG. 5) to provide a rotation restriction mechanism. When the lower end of the door 13 is lifted in order to open the flip-up gate 10 having the above structure, the base end portion which is the pivotal attachment portion of the first arm 12 pivotally attached at the upper end portion of the door 13 to the column 11. It rotates clockwise around the 12a in the figure. At the same time, the pivotally attached portion 15c of the link 15 to the base end portion 12a also rotates clockwise in the drawing. However, the door 13 is pivotally attached to the first arm 12 at the upper end and is in a suspended state.
It tries to maintain the vertical posture by its own weight.
The arm 14 will be pushed toward the column 11. As a result, the link 15 rotates counterclockwise in the figure around the pivotal portion 15c, so that the door 13 can be lifted while maintaining the vertical state. As the door 13 rises, the link 15 and the second arm 14
Approached centering on the pivot 15d connecting them, and the door 1
When 3 reaches a predetermined height, stopper 1 provided on link 15
5a is in contact with the second arm 14, and FIGS. 4 and 5 (b) show this state. The link 15 and the second arm
When the first arm 12 and the second arm 14 come into contact with each other via the stopper 15a, the link 15 and the second arm 14 cannot rotate any more, and thereafter, the link 15 and the second arm 14 become integral with the first arm 12 and become the first arm 12. The base 13 is rotated about its base end 12a to open the door 13 to the position shown by the phantom line in FIG. As described above, also in this embodiment, since the door 13 rises while maintaining the vertical posture at a predetermined height, the door 13 does not project to the road side, and even when it is rotated thereafter, the above-mentioned Since the distance between the base end portion 12a of the first arm 12 which is the center of rotation and the lower end of the door 13 is shortened by the vertical rise, the amount of protrusion to the road side during rotation is extremely small. It should be noted that one end of the link 15, that is, the pivotal connection portion 1 with the base end portion 12a.
The stopper 15b provided on the 5c side is in contact with the base end portion 12a as shown in FIG. 5 (a) in the closed state of the flip-up gate, and restricts the rotation of the door 13 toward the road side. ing.

[Effect of device]

As described above, the flip-up gate according to the present invention rotates about a base end portion pivotally attached to a column and pivotally attaches the door to the other end, and the first arm of the door. A second arm whose one end is pivotally attached to a lower position of a pivoting portion of the first arm and a link whose one end is pivotally attached to the base end of the first arm and the other end is pivotally attached to the other end of the second arm. However, since the relative movement between the second arm and the link due to the upward rotation of the first arm is provided with a rotation restricting mechanism that is fixed after the constant movement, the door is opened on the road side when opening and closing. It has an excellent effect that it hardly protrudes, does not hinder traffic and enhances safety.

[Brief description of drawings]

1 is an explanatory view showing a closed and fully opened state of an embodiment of a flip-up gate according to the present invention, FIG. 2 is an explanatory view showing an opening process of FIG. 1, and FIG. 3 is a flip-up according to the present invention. Explanatory drawing showing the closed and fully opened state of another embodiment of the gate, FIG. 4 is an explanatory drawing showing the opening process of FIG. 3, and FIGS. 5 (a) and 5 (b) are the links of FIG. 3 and FIG. It is a partial enlarged view for explaining the movement of 1,10 …… Bounce gate, 2,11 …… Staff, 3,12 …… First arm, 3a, 12a …… Base end, 4,13 …… Door, 5,14 ... Second arm, 6,15 ... Link, 7 ... Guide link (rotation restriction mechanism), 15a, 15b ... Stopper (rotation restriction mechanism).

Claims (1)

[Scope of utility model registration request] 1. A first arm that pivots around a base end portion pivotally attached to a column and pivotally attaches a door to the other end, and one end located below a pivotal attachment portion of the first arm of the door. A second arm pivotally attached to the first arm, and a link pivotally attached at one end to the base end of the first arm and at the other end to the other end of the second arm. A flip-up gate that is provided with a rotation restricting mechanism that brings the second arm and the link relative to each other into a fixed state after being fixedly moved.