JPH0449213Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) This invention relates to a snow fence.

In regions such as Hokkaido, wind and snow create snowdrifts during the winter that often block or impede traffic. To prevent these snowdrifts, snow fences are used, and by installing them on the side of the road, snowdrifts can be prevented.

(Prior Art) In such a snow prevention fence, a plurality of snow prevention plates are arranged between two columns having vertical grooves so as to be able to slide along the grooves, and the snow prevention plates are arranged on the columns so as to be slidable along the grooves. A removably attached support that can support each board at a predetermined height is classified as
It is disclosed in Publication No. 17931.

Since the conventional snow fence disclosed in this publication is the starting point for this invention, it will be explained with reference to FIGS. 6 to 8.

In the conventional snow fence shown in FIGS. 6 to 8, a large number of pillars 1 are installed along the road, and their lower ends are fixed to concrete blocks 2. On the side of the column facing the adjacent column 1, a groove 3 is formed which extends over its entire length.

A large number of snow protection plates 4 are arranged vertically in parallel between adjacent pillars 1. The snow protection plate 4 has a laterally extending rotating rod 5 fixed to its upper end, which rotation rod 5 is slidable into the groove 3 of the column 1 with its flanged ends projecting from the snow protection plate 4. Fits into. The rotating rod 5 can be rotated at a predetermined height by two bolts 6, 6a that are removably attached to the support 1 by passing through holes provided on two sides sandwiching the groove 3 of the support 1. is attached to post 1. Therefore, the snow protection plate 4 is also pivotable. Of the two bolts, the lower bolt 6 serves as a support to support the weight of the snow protection board 4, and the upper bolt 6a serves as a presser to prevent the snow protection board 4 from floating up. .

Each snow protection board 4 has a protrusion 7 at its lower end, and all the protrusions 7 except for the protrusion 7 of the lowest snow protection board 4 are
It is removably attached to a common, for example, rod-shaped interlocking member 8 so as to be able to pivot relative thereto. The upper end of the interlocking member 8 is movably connected to the upper end of the column 1 via a bendable articulation link 9.

A weight, indicated at 10 in the drawings, is suspended from a suitable location on an adjustment rod 11, one end of which is connected to a weight interlock rod 12 which is loosely connected to one of the rotary rods 5. The adjustment rod 11 is rotatably connected to the lower portion of the interlocking member 8 between the one end thereof and the case where the weight 10 is suspended. As a result, the weight of the weight 10 acts on the interlocking member 8 and, via this, on all the snow protection plates 4 except the lowest snow protection plate 4. The weight interlocking rod 12 is provided to provide a fulcrum for the gravity of the weight 10, and if the weight 10 is suspended from a location along the adjustment rod 11, the force acting on the interlocking member 8 and therefore the snow protection plate 4 will be reduced. change. In the drawing,
Reference numeral 13 denotes a stopper that prevents the inclination angle of the snow protection plate 4 from becoming too small.

The lowermost snow protection plate 4, which is likely to be buried in accumulated snow, is not connected to the interlocking member 8, but is removably fixed to the support column 1 by a suitable fixture 14.

The weight of the weight 10 serves to automatically adjust the opening angle of the snow protection plates (except for the lowest snow protection plate) according to the magnitude of wind and snow pressure. When there is strong wind and snow, the snow protection plates open wide, as shown by 4', 8', and 9', for example.

According to another feature of the snow protection fence of FIGS. 6 to 8, when the snow protection fence no longer needs to be used, the interlocking member 8 can be removed from the snow protection board 4 (the lowermost snow protection board 4 is attached to the fixing member 14). ), bolts 6, 6a
When removed from the support 1, the rotating rod 5 of the snow protection plate 4 can slide along the groove 3. Therefore, from the lower snow protection plate 4, the corresponding bolts 6, 6a
By removing the snow protection plates 4 from the support column 1 and lowering the snow protection plates 4 one after another, the snow protection plates 4 are accumulated at a lower position along the support support 1. In particular, if the snow protection plate 4 is turned to the opposite side of the road and lowered, it will become as shown in FIG.

Thus, according to the configuration shown in FIGS. 6 to 8, the angle of the snow protection plate automatically changes depending on the wind and snow pressure, so there is no risk of the snow protection fence being damaged during strong winds. In addition, there is no need to remove the snow fence when it is not in use, such as during the snowless season, and it is sufficient to simply accumulate the snow prevention plates at a lower position along the pillars. According to this, the beauty of the road is maintained and the view of the surrounding area is not obstructed.

(Problems to be solved by the invention) Although the snow fence disclosed in Japanese Utility Model Publication No. 17931/1983 has excellent features, it is difficult to accumulate the snow prevention boards when not in use. It still has the disadvantage of requiring human labor.

The purpose of this invention is to eliminate such drawbacks.

(Means for solving the problem) In order to achieve this object, according to this invention, a plurality of snow protection plates can be slid between two columns having vertical grooves along the grooves. In the snow fence, the snow prevention fence is arranged such that supports capable of supporting each of the snow prevention boards at a predetermined height are removably attached to the pillars, and the snow prevention fence is attached to an upper portion of at least one of the pillars. a roller rotatably mounted; a rotating body rotatably mounted below said roller to said at least one post; and a rotating body fixed at one end to an upper portion of said at least one post. , a long body such as a wire, a chain, or a rope, the long body extending from the one end, passing under the lowermost snow protection plate, and then being hung on the roller, and passing from the roller. It extends to the rotating body and is fixed to the rotating body at the other end of this elongated body.

(Function) According to the snow fence according to this invention as described above,
When the rotating body is rotated and the elongated body is gradually wound around it starting from the other end, the elongated body is wound between the one end of the elongated body fixed to the support and the roller. The length of the hanging part becomes gradually shorter. Therefore, at the same time as this operation, if the supports are removed in order from the bottom (at this time, the uppermost support does not need to be removed), the snow protection board will be
The lower parts are supported by the hanging parts and ascend in order. In this way, all the snow protection boards are finally piled up.

Then (after removing the uppermost support)
When the rotating body is rotated in the opposite direction, the hanging portion gradually becomes longer, and all the snow protection plates are lowered accordingly, and are finally piled up in the lower position.

In this way, according to this invention, the work of accumulating the snow protection boards upwards or downwards can be accomplished easily and with almost no manual effort required.

(Example) Hereinafter, an example of this invention will be described with reference to the drawings.

Embodiments of the snow fence according to this invention can include all the components illustrated in FIGS. 6 to 8; for these components, see FIGS. 6 to 8 in the prior art section. The above explanation is
This applies to all of them, so please refer to Section 6 on this point.
Figures 8 through 8 and the above description are incorporated herein by reference.

In particular, if explained with reference to FIGS. 1 to 5,
In the embodiment of the snow fence according to this invention, a roller 15 is rotatably attached to the upper part of the support column 1, and a rotating body, such as a rotating shaft 16, is rotatably attached to the column 1 below the roller 15. The rotating body 16 is, for example, rotated manually by a handle (not shown) or by a motor (both not shown) via a gear system.

An elongated body such as a wire, chain or rope, designated by the reference numeral 17 in the drawings, has one end 17b,
It is fixed to the column 1 by a bolt 18 attached to the upper part of the column 1. This elongated body 17 is
It extends downward from one end 17b, passes under the lowermost snow protection plate 4a (particularly its rotating rod 5), extends upward from here, is hung on it so as to pass over the roller 15, and extends downward from here. The elongated body 17 is then fixed to the rotating body 16 at its lower end 17c.

In addition, in order to simplify the explanation, in this example,
The upper bolts 6a, which constitute a holding device that prevents the snow protection board 4 from floating, are not attached to the support 1, and only the lower bolts 6a, which serve as a support for supporting the weight of the snow protection board 4, are attached. I thought it was.

In the snow protection fence configured as described above, the support 6 that supports the lowermost snow protection board 4a is removed from the support 1 (the bolt 6 is removed), the rotating body 16 is rotated,
When the elongated body 17 is wound around this from the other end 17c, the length of the hanging portion 17a of the elongated body 17 between the bolt 18 and the roller 15 gradually becomes shorter, and finally the length of the elongated body 17 is reduced. As shown in FIG. 1, the hanging portion 17a comes into contact with the lowermost snow protection plate 4a (particularly its rotating rod 5) from below.

Further, as the rotating body 16 is rotated, the hanging portion 17a becomes even shorter, and the lowermost snow protection plate 4a slides along the pillar 1 (groove 3) and rises, and the next snow protection plate is moved up. 4b (Fig. 2). At this point, when the support 6 supporting the next snow protection plate 4b is removed, the next snow protection plate 4b also begins to slide upward due to the subsequent rotation of the rotating body 16.

In this way, as the rotating body 16 continues to rotate, all the snow protection plates 4a, 4b, 4c except the uppermost snow protection plate 4d reach a position close to the support 6 of the uppermost snow protection plate 4d. , slide upward (Figure 3). In this state, if the rotation of the rotating body 16 is stopped, all the snow protection plates 4a, 4b, 4c, 4d
is accumulated above the snow fence. Thus, an upward accumulation of snow protection plates is achieved.

After the snow protection boards are piled up in this way,
When the support 6 of the uppermost snow protection board 4d is removed and the rotating body 16 is reversely rotated, the hanging portion 17a becomes gradually longer, and along with this, all the snow protection boards 4
a, 4b, 4c, and 4d slide down in an integrated state, resulting in the state shown in FIG. 4. Thus,
A downward accumulation of snow protection plates is also achieved.

Snow protection plates 4a, 4 accumulated above or below
In order to return b, 4c, and 4d to their original positions as shown in FIG. 1, it is sufficient to perform substantially the reverse operation as described above.

In addition, if the upper bolt 6a that constitutes the holding tool is used in addition to the lower bolt 6 that constitutes the support, be sure to also remove the upper bolt 6a when removing the lower bolt 6. Bye.

In addition, as shown in FIG. 5, when the snow protection plates 4 are provided between many columns 1 installed in parallel, the rotating body 16 attached to all the columns 1
If these are interlocked by, for example, a connecting rod 19, all the snow protection plates 4 can be assembled by operating only the connecting rod 19. Even when there are only two columns 1, if a rotating body 16 is attached to each column, it is desirable to interlock the rotating bodies 16 with each other.

(Effect of the invention) Since the snow protection fence according to this invention is constructed as described above, the snow protection fence can be accumulated above by simply rotating the rotating body 16 manually or mechanically while removing the support 6. Both lower and lower accumulation can be accomplished easily and with little or no human effort. Furthermore, the force applied to the rotary body 16 is 1/2 of the force exerted by the snow protection plate 4 on the elongated body 17 in accordance with the principle of a movable pulley, so that the rotation of the rotary body 16 can be easily performed.
Furthermore, in the case shown in FIG. 5 in which the snow protection plates 4 are arranged between many pillars 1, the operation becomes even easier if the rotating body 16 is interlocked.

[Brief explanation of the drawing]

FIGS. 1, 2, 3, and 4 are diagrams sequentially schematically illustrating the operating states of various snow fences according to this invention. FIG. 5 is a diagram showing an application of this invention to a snow fence in which a large number of posts are installed in parallel. FIG. 6 shows a conventional snow protection fence with snow protection plates attached. FIG. 7 shows the snow protection fence of FIG. 6 with the snow protection boards stacked below. FIG. 8 shows how the snow protection plates are attached to the snow protection fence of FIG. 6. In the drawings, 1 is a support, 3 is a groove, 4 is a snow protection plate, 6 is a support, 15 is a roller, 16 is a rotating body,
17 indicates a long body.

Claims (1)

[Scope of utility model registration request] A plurality of snow protection plates 4 are arranged between two columns 1 having vertical grooves 3 so as to be able to slide along the grooves, and each of the snow protection plates is mounted on the column at a predetermined height. A snow protection fence in which a support 6 that can be supported is removably attached, the snow protection fence having a roller 15 rotatably attached to the upper part of at least one of the supports, and a roller 15 rotatably attached below the roller, comprising a rotating body 16 rotatably mounted on at least one of the columns, and an elongate body 17, such as a wire, chain or rope, fixed at one end to the upper part of said at least one column; The elongated body extends from the one end, passes under the lowermost snow protection board, is then hung on the roller, extends from the roller to the rotating body, and at the other end of the elongated body. A snow protection fence, characterized in that it is fixed to the rotating body.