JPS61137906A - Freely liftable road surface pillar - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Industrial Application Field The present invention provides a road support that can be raised and lowered, in particular, the support is automatically locked and fixed when it is raised, and is released by a key-lock mechanism. This relates to a road support that can be raised and lowered, and is installed at the boundary between the road surface and the site surface, where the support is buried under the road surface.

(B) Prior Art Conventionally, various means have been used to close off the boundary between the road surface and the site surface where automobiles enter and exit.

In addition to closing with opening/closing doors and locking with chains, there is also a system that allows you to attach and remove the support at the boundary line of the automobile passage, raise and fix the interior support of the double support, and bury the interior support when necessary. there were.

This double column is simply a double column, and when the exterior column is buried in the ground, the upper part is slightly exposed and a pair of through holes are provided in the exposed part, near the bottom of the interior column. A pair of holes were provided to fit into the pair of through-holes, the interior support was raised, the holes were aligned, and a penetrating pin was inserted to fix the interior support to the exterior support.

However, such conventional dual struts have the disadvantage that inserting the pins is relatively time consuming and the interior struts can be easily removed by an outside party. In view of the shortcomings of such conventional devices, the present applicant has provided a column that automatically raises and fixes an interior column easily and quickly, and also provides a column that is pressurized so that an outsider cannot easily unlock the column. (Utility Model Publication No. 54-23779).

As shown in Fig. 5, this movable road support consists of an exterior base pillar A that is buried in the ground up to its head and an interior support pillar B that is fitted inside the base pillar A, and a spring is constantly attached to the bottom of the interior support pillar. An automatic locking mechanism C is provided in which a movable rod r locks into a lock part E provided at the upper part of the exterior base pillar by pressure, and a keyhole G suitable for the elephant-shaped key D- is provided below the exposed interior pillar. It is characterized in that the lock is released by inserting the key and applying pressure to the movable rod F. However, this road support had the disadvantage that the interior support was latched onto the exterior base pillar only in one direction, causing it to tilt slightly when the interior support was locked in its raised position. .

(c) Problem to be Solved by the Invention The problem to be solved by the invention is that when the interior support column is locked in its raised position, it may tilt slightly.

(b) Means for Solving the Problems The present invention solves the drawbacks of the conventional device described above, and includes an exterior base that is buried underground up to the head and a structure that can be raised and lowered into the exterior base. A road support comprising: an interior support installed in the interior support; a push plate whose tip end comes into contact with the inner surface of the interior support column and stops; a spring member which biases the push plate so that the push plate always comes into contact with the inner surface of the interior support column; , a rocking plate fixed to the lower end of the shaft member, when the tip of the push plate is in contact with the inner surface of the interior support, a part of the diagonal corner of the rocking plate is fixed to the interior support A pair of openings formed in the wall surface of the column are raised, and the shaft member is placed in a position where it can be engaged with a locking device provided on the exterior base column, and the tip side of the push plate is pushed to center the shaft member about its vertical axis. When the rocking plate is rotated as shown in FIG. It is characterized by comprising a rocking plate;

In this way, in the road support of the present invention, the rocking plate is fixed to the shaft member that rotates around an axis parallel to the longitudinal axis of the road support, and therefore, the interior support is fixed to the exterior base pillar by the rocking plate. This is done simultaneously on some of the diagonal corners of the moving plate. Therefore, no moment that would cause the interior support to tilt is applied to the interior support, so that the interior support is always locked upright.

In a preferred embodiment of the invention, the interior struts and exterior base columns have a rectangular cross section. Due to its nature, the structure of the road support according to the present invention allows the cross-sectional shapes of the interior support and exterior base pillar to be of any shape, and therefore can be adapted to a variety of road support designs.

In another embodiment of the present invention, the locking device provided on the exterior base pillar is comprised of a pair of openings formed in the wall surface of the exterior base pillar.

(E) Embodiment Referring to FIG. 1, a road support 1 which can be raised and lowered according to the present invention is an exterior base AlO which is buried underground up to the head.
The interior support 20 is mounted in the interior support column 70 so as to be able to move up and down, the shaft member 30 is rotatably supported within the interior support support 20, the push plate 40 is fixed to the upper part of the shaft member 30, and Spring 50 biased so that the chrysanthemum plate comes into contact with the inner surface of the interior support column 20
and a rocking plate 60 fixed to the lower portion of the shaft member 30. In this example,
The exterior base column 10 and the interior column 20 each have a rectangular cross section, but may have a circular, square or other arbitrary cross section.

As shown in the figure, the exterior base pillar 10 has an upper portion of 2
The inner sleeve 11 has openings 12 diagonally formed therein. A pair of openings 21 are also formed in the lower portion of the interior support column 20 at positions corresponding to the openings 12 of the exterior base column 10. A small hole 22 is formed in the upper portion of the interior support column 20 for inserting a pin 70 to press the push plate of the shaft member 30.

The shaft member 30 is rotatably supported within the interior support column 20 by a support member 80 about an axis parallel to its vertical axis. A push plate cutter is fixed to the upper portion of this shaft member. Therefore, the tip end 41 of the push plate 40 is connected to the interior support column 20.
When the shaft member 30 comes into contact with the inner surface of the shaft member 30, the rotation of the shaft member 30 is stopped.

A spring 50 is attached around the shaft member 30 so that the tip end 41 of the push plate 40 is always in contact with the inner surface of the interior support column 20. In the illustrated embodiment, both ends of the spring 50 are fixed to a support member 80 and a shaft member 30, respectively. A substantially rectangular swing plate 60 is fixed to the lower portion of the shaft member 30 (1'). This swing plate 60 is connected to the shaft member 3
The following positional relationship is established with respect to the push plate 40 fixed to the upper part of the holder. That is, when the tip end 41 of the push plate 40 is in contact with the inner surface of the interior support column 20, the diagonal corner portions 61 and 62 of the swing plate pass through the pair of openings 21 formed in the wall surface of the interior support column 20. Exterior base pillar 10
(by means of the ear pins 70 shown in dashed lines in FIG. 4).

When the push plate 40 is pushed and the shaft member 30 is rotated about its vertical axis, all of the swinging member 60 is placed inside the interior support column 20 (indicated by solid lines and lines in FIG. 4). Thus, the swing plate 60 is fixed to the shaft member 30.

(f) Effect 4 The road support 1 according to the present invention is buried underground so that its head slightly protrudes from the road surface.

It is made to be flat. Therefore, in this state,
] The uninvented road support l does not obstruct the walking of passersby or the driving of cars at all.

When leaving the interior support 20 (1), lift up the knob 24 provided on the top surface 23 of the interior support 20. When pulled up to the position shown in FIG. , 62, the opening 21 of the interior pillar 20 and the sleeve 11 of the exterior base pillar 10 are opened by the action of the spring 50.
It passes through the opening 12 formed in the opening 12 and extends outward. Thereby, the interior support column 20 is automatically fixed in its raised position.

Next, when lowering the interior strut 20, as shown in FIG. 1, insert the nasal modification plate 76 into the small hole 2° formed in the middle portion of the interior strut 20. Press. As a result, the swing plate 6 fixed to the shaft member 30 and its lower part
0 rotates around the vertical axis of the shaft member 30. Therefore, all of the rocking plates 60 enter inside the interior support columns 20.1. This allows the interior/interior support column 20 to enter into the exterior base column 10.

Note that it is preferable to provide a shock absorber at the bottom of the exterior base pillar 10, which acts as a shock absorber when the interior support pillar 20 is violently dropped.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a road support that can be raised and lowered according to the present invention. FIG. 2 is a longitudinal sectional view of the road support of FIG. 1 taken along a cross section orthogonal to FIG. 1; 3 is a plan view of the road support in FIG. 1; FIG. FIG. 4 is a sectional view taken along the line IV-IV in FIG. 1. FIG. 5 is a detailed sectional view of a locking device portion of a conventional road support. 1... Road support 10... Exterior base pillar 11... Sleeve 12.
...Opening 20...Interior support column 21...Opening 22...
Small hole 30...Shaft member 40...Press plate 50...Spring 60...Swing plate 61, 62...Corner part 70...Bin patent applicant Hinatano Kogyo Co., Ltd. Figure 3 Figure 4

Claims (3)

[Claims] (1) In a road support comprising an exterior base pillar buried in the ground up to the head and an interior support pillar mounted within the exterior base pillar so as to be able to rise and fall, the interior support pillar is placed parallel to its longitudinal axis. a shaft member rotatably supported about a shaft; and a press plate fixed to an upper portion of the shaft member, the tip of which stops when it comes into contact with the inner surface of the interior support. a push plate; a spring member biased so that the push plate always comes into contact with the inner surface of the interior support; and a rocking plate fixed to a lower portion of the shaft member, the tip of the push plate being When in contact with the inner surface of the interior support column, the diagonal corner portion of the rocking plate opens a pair of openings formed in the wall surface of the interior support column and engages with a latching device provided on the exterior base column. When the shaft member is rotated about its vertical axis by pushing the tip side of the pushing plate, all of the rocking plates enter into the interior support column, thereby causing the interior A road support that can be raised and lowered, comprising: a rocking plate fixed in a positional relationship such that the support can enter the exterior base pillar; and; (2) The road support according to claim 1, wherein the interior support and exterior base pillar have a rectangular cross section. (3) In the road support according to claim 1 or 2, the latching device provided on the exterior base pillar is comprised of a pair of openings formed in the wall surface of the exterior base pillar. road support.