JPH0612517U - A fence pillar that can appear and disappear freely on the ground - Google Patents

Abstract

(57) [Summary] [Purpose] There is a need to obtain a method that allows a heavy fence column to be retracted and retracted easily and safely without labor. [Structure] A column body 4 in which a drum 7 having an axis of a horizontal direction is rotatably attached to a lower side of a bottom surface is vertically inserted into an outer cylinder 1 buried in the ground, and a tip end of the drum 7 is attached to the outer cylinder 1. A constant force spring 8 having a constant constant force larger than the total weight of the column 4 is wound around the upper portion of the outer cylinder 1 and fixed to the upper portion.
A latch 11 that protrudes inward with an elastic force of 0 is attached, engagement recesses 12 that lock the latch 11 are formed on the upper and lower side surfaces of the pillar 4, and the latch 11 is provided on the upper end surface of the outer cylinder 1. The operation portion 13 is provided for pulling in the spring 10 against the elastic force of the spring 10.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fence post that blocks the passage of vehicles, etc. by leaving the head on the ground surface when not in use, immersing the other part in the ground, and standingly fixing it to the ground as necessary. .

[0002]

[Prior art]

 Conventionally, this type of fence post has not been enlarged more than necessary as it is sufficient to simply block the traffic, but it is necessary to cope with the recent increase in the size of buildings and parking lots or the collision of vehicles. For this reason, it became necessary to increase the size and strength of fence columns.

However, the overall weight of the fence pillar becomes extremely large as the fence pillar becomes larger and tougher, and a great deal of labor is required for the operation of pulling it out to the ground or the operation of immersing it in the ground. When immersing by the weight of the fence post, the impact of the fall was extremely large, which could cause accidental damage to the car stop and the ground surface in the surrounding area, and at the same time there was a risk of an accident.

In order to prevent such inconvenience, a method of remotely operating a large and heavy fence pillar by electric or hydraulic pressure has been found, but the mechanism is complicated and it requires labor in construction. Met.

For this reason, in the past, a constant-load spring was combined with a large and heavy fence post, and the total weight of the fence post was supported by the constant constant force of the constant-load spring to slow down the fence post. As a result, a sudden fall due to the weight of the fence post was prevented, and there was no risk of damage to the surrounding area or an accident, and safety was improved. There was no particular change in the weight in the pull-out direction, and the pull-out operation required a lot of effort as before.

[0006]

[Problems to be solved by the device]

 The problem to be solved is that in the past it took a lot of effort to pull out a large and heavy fence post to the ground, and there was a danger of being immersed in the ground.

[0007]

[Means for Solving the Problems]

 The present invention relates to an outer cylinder embedded in the ground, a pillar body vertically inserted into the outer cylinder, a drum rotatably attached with an axis line laterally below the bottom surface of the pillar body, and a drum. A constant-load spring that is wound around the outer cylinder with its tip fixed to the upper part of the outer cylinder, and has a constant constant force larger than the total weight of the column, and is attached to the outer cylinder and protrudes inward by the elastic force of the spring. A latch, an engaging recess provided on the upper and lower side surfaces of the column body, to which the latch is locked, and an upper end surface of the outer cylinder, the latch is pulled outward against the elastic force of the spring. It consists of an operating part.

[0008]

[Action]

 Thus, the columnar body that is vertically inserted into the outer cylinder is suspended by a constant force spring whose balance constant force is larger than the total weight of the columnar body, and the outer cylinder is extended with the constant force spring extended. The latch that is retracted into the column and is projected from the outer cylinder in the column direction by the elastic force of the spring is locked in the engaging recess formed above the column to maintain the retracted state.

In this retracted state, by operating the operating portion provided on the upper end surface of the outer cylinder to release the latched state of the latch in the engaging concave portion, the column body naturally moves by the constant constant force of the constant force spring. The ascending operation is started, and the latch is locked in the engaging recess below the column, and the standing state on the ground is maintained.

By operating the operation portion provided on the upper end surface of the outer cylinder in the upright state to release the latched state of the latch in the engagement recess, the column can be lowered, and the balance of the constant force spring can be adjusted. By pushing down against the force, it is retracted into the outer cylinder, and the latch is locked in the engaging recess above the column.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes an outer cylinder embedded in the ground, and a bush 3 having an outer flange 2 formed on an upper edge thereof is fitted to an upper inner side of the outer cylinder. ing. Reference numeral 4 is a column body that is inserted into and retractable from the outer cylinder 1 and has an upper end surface that faces the ground surface when it is retracted, and a support body 5 is projectingly provided below the bottom surface.

Reference numeral 6 is a bracket attached to the support body 5, and rotatably attached to both ends of a drum 7 having an axis line in the lateral direction. Reference numeral 8 is a constant force spring having a balanced constant force larger than the total weight of the column body 4, one end of which is wound around the drum 7, the tip of which is fixed to the upper portion of the outer cylinder 1 to suspend the column body 4. There is.

Reference numeral 9 is a locking body attached to the upper portion of the outer cylinder 1, and has a latch 11 projecting and retracting in the direction of the column 4 by the elastic force of the spring 10. Reference numeral 12 denotes engaging recesses formed on the upper and lower side surfaces of the pillar body 4, and the ratchet 11 is locked when the pillar body 4 is retracted and when the pillar body 4 is erected, respectively. maintain.

Reference numeral 13 denotes an operating portion provided on the upper end surface of the outer cylinder 1. The operating portion 13 is linked to the locking body 9 by a connecting rod 14. The operation portion 13 operates the latch 11 against the elastic force of the spring 10. It has a configuration in which it is drawn in the direction of the outer cylinder 1.

Reference numeral 15 denotes a guide rail formed on the inner surface of the outer cylinder 1, which guides a guide 16 projecting to the side of the column 4 to facilitate the vertical movement of the column 4. Reference numeral 17 denotes a handle provided on the upper end surface of the pillar body 4.

The embodiment of the drawings shows a structure in which the column 4 does not rotate with respect to the outer cylinder 1, but the engaging recess 12 is formed continuously on the outer peripheral surface of the column 4, and the bracket 6 The column body 4 can be made rotatable by adopting a structure in which the column is rotatably attached to the support body 5. Further, the cross-sectional shape of the outer cylinder 1 can be rectangular.

[0017]

[Effect of device]

 According to the present invention, as described above, the pillar body vertically inserted into the outer cylinder is hung by the constant force spring having a constant balancing force larger than the total weight of the pillar body. When the locked state in the recess is released, the column body starts to rise naturally, and even if the column body has a considerable weight, it can be easily erected.

Further, since the latch is elastically pressed by the spring, when the pillar is erected or erected, it can be automatically locked in the engaging concave portion to easily maintain the respective states.

Further, since the operation portion for releasing the latched state of the latch to the engagement concave portion against the elastic force of the spring is provided on the upper end surface of the outer cylinder, the column body is not only in the retracted state but also in the standing state. Even in the case, the release operation can always be performed in a constant state.

In addition, since the column body itself has a heavy weight, the column body itself can be lowered by applying a slight force to the column body without requiring any special labor. The power required from is always constant.

Further, by calculating the constant balancing force of the constant load spring based on the total weight of the column, the ascending speed of the column can be set to an optimum value, and in response to this, the column descending speed can be set. This makes it possible to take measures such as setting the force required for the construction to a minimum, and is useful as a fence post that can be moved in and out on the ground using a heavy column.

[Brief description of drawings]

FIG. 1 is a front view of a partial vertical section.

FIG. 2 is a side view with a partial vertical section.

[Explanation of symbols]

 1 Outer Cylinder 4 Column 7 Drum 8 Constant Load Spring 10 Spring 11 Latch 12 Engagement Recess 13 Operation Part

Claims (1)

[Scope of utility model registration request] 1. An outer cylinder (1) buried in the ground, a pillar (4) which is vertically inserted into the outer cylinder (1), and an axial line extending laterally below the bottom surface of the pillar (4). And the drum (7) that is rotatably attached to the drum (7) and is wound around the drum (7), and the fixed constant force with the tip fixed to the upper part of the outer cylinder (1) is larger than the total weight of the column (4). Constant force spring (8)
The latch (11) attached to the outer cylinder (1) and protruding inward by the elastic force of the spring (10), and the latch (11) provided on the upper and lower side surfaces of the pillar (1) are locked. And an operating portion (13) provided on the upper end surface of the outer cylinder (1) for pulling the latch (11) outward against the elastic force of the spring (10). A fence post that can freely appear and disappear on the ground.