JP3172879U - Cross gate - Google Patents

Abstract

Provided is a cross gate that holds a cross bar so that it does not swing left and right according to the inclination of an installation surface during opening and closing movement.
Both ends of a cross bar are supported by support members 1 and 2, and a wheel support member 3 is disposed at the lower ends of the support members 1 and 2 so as to form an inverted T shape with the support member. At both ends of 3, wheels are rotatably supported to form a cross gate. The wheel support member 3 is provided to be rotatable with respect to the support members 1 and 2, and a fixing bar 12 is provided between the support members 1 and 2 and the wheel support member 3. Further, the support bar and the wheel support member 3 are fixed at right angles to the extending and contracting direction of the cross bar by engaging the fixing bar 12 with the support members 1 and 2 and the wheel support member 3.
[Selection] Figure 3

Description

  The present invention relates to a telescopic gate that is installed at a doorway of a house, a garage, a construction site, a material storage area, and the like, and more particularly, to a cross gate suitable when the installation surface is inclined.

  Conventionally, as a gate including this type of cross gate, for example, the one shown in Patent Document 1 is known. The telescopic gate includes a plurality of support members and cross bars (cross members) pivotally attached to the support members, and the support members are separated from or approach each other by changing the angle between the cross bars. It expands and contracts to open and close.

  However, the installation surface such as the doorway is on the outside (left and right sides) of the gate site, and one is higher or lower than the other. In addition, the inclined surface is not uniform and the inclination angle is partly large or small. Thus, if the inclination of the installation surface is unstable, the crossbar is inclined and becomes unstable when one end of the gate is pulled out.

  In this connection, both ends of the crossbar are supported by the strut members, and the middle part of the crossbar is supported by the movable struts. The strut members and the lower ends of the movable struts are arranged at right angles to the expansion and contraction direction of the crossbar. The wheel support member is fixed, and screw rods are screwed in the vertical direction at both ends of the wheel support member, respectively, and the wheel is supported at the tip of the screw rod so as to roll freely. And the technique which adjusts so that a crossbar may become perpendicular | vertical according to the inclination of an installation surface by adjusting the space | interval between a wheel support member and a wheel by rotating a screw rod is known (patent) Reference 1).

JP 2008-156877 A

  However, in the cross gate, the angle between the support member and the wheel support member can be adjusted. However, since the angle is fixed during the opening and closing movement, it is not possible to cope with the case where the inclination of the installation surface changes in an unstable manner. Therefore, the situation in which the crossbar swings to the left and right during movement does not change.

  An object of the present invention is to provide a cross gate that solves the above-described problems and can hold the cross bar so that it does not swing left and right according to the inclination of the installation surface during opening and closing movement.

  In order to solve the above-mentioned problem, the cross gate according to the present invention supports both ends of the cross bar with the support members, and the wheel support members are arranged at the lower ends of the support members so as to form an inverted T shape with the support members. The wheel support members are provided at both ends of the wheel support member so that the wheels can roll freely. The wheel support members are provided so as to be rotatable with respect to the support member, and between the support members and the wheel support member. A fixing bar is provided, the fixing bar can be engaged with and disengaged from the support member and the wheel support member, and the support member and the wheel support member are fixed at right angles by engagement.

  In addition, both ends of the fixed bar are bent at right angles, and a bent portion at one end thereof is provided so as to be able to be inserted into and removed from one of the column member or the wheel support member, and a bent portion at the other end is provided according to insertion / removal of the bent portion at the one end. It is preferable that the engagement portion formed on the other of the support member and the wheel support member can be engaged and disengaged.

  Further, it is preferable that the bent portion at one end of the fixed bar is always spring-biased in the insertion direction.

  According to the first aspect of the invention, the both ends of the cross bar are supported by the support members, and the wheel support members are arranged at the lower ends of the support members so as to form an inverted T shape with the support members. In the cross gate that supports the wheels so as to roll freely at both ends, the wheel support member is provided so as to be rotatable with respect to the support member, and a fixing bar is provided between the support member and the wheel support member. Since the fixing bar can be engaged with and disengaged from the strut member and the wheel support member, and the strut member and the wheel support member are fixed at right angles by engagement, when the crossbar is expanded and contracted along with opening and closing of the opening, When the inclination of the installation surface is unstable, the wheel support member rotates according to the inclination angle, but the column member is held in a vertical state. For this reason, the crossbar can be stably contracted and moved in the extending direction while maintaining the vertical state without shaking with the rotation (swing) of the wheel holding member. After the opening and closing movement, the cross bar can be stably supported by fixing the support bar and the wheel support member at right angles to the expansion and contraction direction of the cross bar by engaging the fixing bar with the support member and the wheel support member.

  According to the second aspect of the present invention, both ends of the fixing bar are bent at right angles, and a bent portion at one end thereof is provided so as to be able to be inserted into and removed from one of the support member or the wheel support member, and a bent portion at the other end is provided at the one end. Since it is possible to engage and disengage with the engaging part formed on the other of the support member or the wheel support member according to the insertion / extraction of the bent part, it can be engaged / disengaged only by inserting / removing the fixing bar. Can be done easily and quickly.

  According to the third aspect of the present invention, since the bent portion at one end of the fixed bar is always urged by the spring in the insertion direction, a force is required to extract, but a spring force is required to engage the engaging portion. Can be easily engaged, and since the engaged state is maintained by the spring force, it is not easily disengaged.

Cross-sectional side view of the crossgate Side view of stretched cross gate Front view showing the mounting state of the support member and the wheel support member Sectional drawing which shows the attachment state of a wheel support member Partial sectional view showing the mounting state of the fixed bar

  Hereinafter, embodiments of the cross gate will be described in detail with reference to the drawings.

  As shown in FIGS. 1 and 2, the cross gate supports both ends of the cross bar A with the support members 1 and 2, and the support members 1 and 2 and the inverted T-shape at the lower ends of the support members 1 and 2. The wheel support member 3 is disposed so as to form a wheel, and the wheel support member 3 is rotatably supported at both ends of the wheel support member 3. One support member 1 is provided on both sides of the installation surface G of the site opening. It is fixed to one of the two struts (not shown), and the other strut member 2 is moved to the other strut side and stretched to close the opening between the struts, and conversely contract. Is configured to open the opening. In addition, the installation surface G is formed horizontally when the cross gate is extended and contracted, that is, when the support members 1 and 2 are located when the cross gate is closed and opened, and the portion between them is high on the outside or high inside. It is assumed that it is inclined irregularly.

  The column (not shown) is erected in a vertical state with respect to the horizontal plane regardless of the inclination of the inclined installation surface G.

  As shown in FIG. 3 and FIG. 4, the cross bar A is formed by crossing four bar members a 1, a 2, a 3, a 4 and pivoting each intersection by a connecting pin 4. The ends of the bar materials a1 and a4 are located above and below the both ends. Further, in the middle, the end portions of the two bar members a2 and a3 are rotatably connected by the connecting pin 4. With the above configuration, when the crossbar A expands and contracts, the end portions of the bar materials a1 and a4 located at the upper and lower ends of the crossbar A move up and down, but the central bar materials a2 and a3 move up and down. Without staying in the same position.

  The strut members 1 and 2 are metal cylindrical members, and support the intersections of both ends of the cross bar A. A wheel support member 3 is disposed at the lower end of the support members 1 and 2 so as to form an inverted T shape with the support members 1 and 2. The wheel support member 3 is a horizontally long metal cylindrical member, and a wheel mounting bracket 5 is fixed to each end thereof, and a wheel 6 is supported by the wheel mounting bracket 5 so as to be able to roll.

  A metal cylindrical moving column 7 is provided in the middle portion of the cross bar A. A connecting pin 4 at the bottom of the cross bar A is slidably attached to the moving column 7, and a central connecting pin 4 is attached to the upper end of the moving column 7. A wheel mounting bracket 5 is also provided at the lower end of the movable column 7.

  Next, an opening 8 larger than the column members 1 and 2 is vertically formed at the center of the wheel support member 3, and the lower ends of the column members 1 and 2 are inserted into the opening 8. 3 are fixed by bolts 10 and nuts 11 that are inserted from the left and right sides of 3 and pass through the column members 1 and 2. Thereby, the wheel support member 3 is provided so as to be rotatable inside the opening 8 with respect to the support members 1 and 2.

  A fixing bar 12 is disposed between the support members 1 and 2 and the wheel support member 3. As shown in FIG. 5, the fixing bar 12 is a metal round bar, and both ends are bent at a right angle. One bent portion 13 is formed to be longer than the other bent portion 14. And the long bending part 13 penetrates the support hole 9 provided in the one end part side of the wheel support member 3, is equipped with the compression spring 15 in the protruded part, and is comprised so that the end part may be received with the nut 16. Has been. As a result, the longer bent portion 13 engages with the support hole 9 and can be inserted into and removed from the wheel support member 3, and is normally spring-biased in the insertion direction.

  On the other hand, the other short bent portion 14 is configured to be engageable with a receiving hole (engagement portion) 17 provided in the column members 1 and 2. An engagement hole 18 is formed on the side of the wheel support member 3 opposite to the side having the support hole 9. The engaging hole 18 is formed so that the other bent portion 14 of the fixing bar 12 can be engaged.

  The shorter bent portion 14 can be engaged with and disengaged from the receiving hole 17 formed in the column members 1 and 2 in accordance with the insertion and removal of the longer bent portion 13 of the fixing bar 12.

  According to the above configuration, when the cross gate is closed or opened, the shorter bent portion 14 of the fixing bar 12 is inserted into and engaged with the receiving holes 17 of the support members 1 and 2. By arranging the fixing bars 12 in a bracing manner, the support members 1 and 2 and the wheel support member 3 are fixed at a right angle.

  Next, when closing or opening the cross gate, after pulling out the longer bent portion 13 of the fixing bar 12 against the compression spring 15 and pulling out until the shorter bent portion 14 comes out of the receiving hole 17, The bent portion 14 is engaged with the engagement hole 18 of the wheel support member 3 in advance. When the cross gate is moved in the opening / closing direction, when the inclination of the installation surface G is unstable, the wheel support member 3 rotates independently of the support members 1 and 2 and rotates according to the inclination angle. However, the support members 1 and 2 are held in a vertical state. For this reason, the crossbar A can also be stably contracted and moved in the extending direction while maintaining the vertical state. After the opening and closing movement, the short bent portion 14 of the fixing bar 12 is pulled out from the engagement hole 18 and engaged with the receiving hole 17 of the support members 1 and 2 again, so that the support members 1 and 2 and the wheel support member 3 are connected. The cross gate can be stably supported by fixing the cross bar A at a right angle to the expansion / contraction direction.

  Further, both ends of the fixing bar 12 are bent at right angles, and a bent portion 13 at one end thereof is provided so as to be able to be inserted into and removed from one of the support members 1, 2 or the wheel support member 3, and a bent portion 14 at the other end is provided at the bent portion 13 at the one end. Since it is possible to engage and disengage with the receiving hole 17 formed in the other of the support members 1 and 2 or the wheel support member 3 in accordance with the insertion / removal of the wheel, it is possible to engage / disengage only by inserting / removing the fixing bar 12. The accompanying operations can be performed easily and quickly.

  Further, since the bent portion 13 at one end of the fixed bar 12 is always urged by a spring in the insertion direction, a force is required for extraction, but when engaging with the receiving hole 17 and the engagement hole 18, the spring force is used. Since it can be easily engaged and the engaged state is maintained by the spring force, it is not easily disengaged.

  The engaging portion is not limited to the hole. It may be a groove or a recess.

  Further, a wheel support member having a similar configuration may be provided at the lower end of the moving column, and the moving column and the wheel support member may be engaged and disengaged with a fixed bar.

A cross bar a1, a2, a3, a4 Bar material 1 support member 2 support member 3 wheel support member 5 wheel mounting bracket 12 fixing bar 13 long bent portion 14 short bent portion 17 receiving hole (engagement portion)

Claims (3)

Both ends of the crossbar are supported by support members, and wheel support members are arranged at the lower ends of the support members so as to form an inverted T shape with the support members, and the wheels can be rotated at both ends of the wheel support members. In the supported cross gate,
While providing the wheel support member to be rotatable with respect to the support member,
A fixing bar is provided between the support member and the wheel support member,
A cross gate characterized in that the fixing bar can be engaged with and disengaged from a support member and a wheel support member, and the support member and the wheel support member are fixed at right angles by engagement. Both ends of the fixed bar are bent at right angles, and a bent portion at one end thereof is provided so as to be able to be inserted into and removed from one of the support member and the wheel support member, and a bent portion at the other end is provided according to the insertion / extraction of the bent portion at the one end The cross gate according to claim 1, wherein the cross gate can be engaged with and disengaged from an engagement portion formed on the other of the member and the wheel support member.   The cross gate according to claim 1 or 2, wherein a bent portion at one end of the fixed bar is constantly biased in the insertion direction.

Images