JPH0641682B2 - Folding deployable snow fence - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a foldable snow-break fence that can be used by deploying a plurality of snow-prevention plates at required times and can be folded at unnecessary times in a snowfall region. Is.

[Conventional technology]

Conventionally, as a folding deployable type snow fence to be installed along the side of a motorway in a snowfall region
As disclosed in Japanese Patent Publication No. 91, two intermediate snow-prevention plate units, an upper snow-prevention plate unit, and a lower snow-prevention plate unit, which respectively extend in the lateral direction, are arranged in parallel in the vertical direction, and each intermediate snow-prevention unit. The longitudinal section of the upper snow protection board unit and the lower snow protection board unit are arranged so that the central section of the interlocking long link crosses the central section in the width direction of the longitudinal end of the board unit so as to intersect in an X shape and is pivotally attached by the horizontal axis. One end of the interlocking short link, which is parallel to the interlocking long link, is pivotally attached by the horizontal axis to the widthwise center of the end in the width direction, and the other end of each interlocking short link is the widthwise short part of the intermediate snow protection plate. The guide rollers that are pivotally attached to each of the horizontal shafts are vertically fitted in the grooves of the supporting column, and the middle portion of the wire rope is wound around the pulley attached to the upper end of the supporting column. One hanging end of A snow winch folding folding winch for winding and unwinding the other end of the wire rope, which is connected to the horizontal axis of the snow plow board unit, is configured to be fixed to the prop via a fixing bracket. The structure is known.

[Problems to be Solved by the Invention]

In the case of the conventional folding deployable type snow fence, when folding and unfolding the snow protection plate group, the winch must be fixed to the prop via a fixing metal fitting, and the handle of the winch must be rotated. Because it doesn't
There is a problem that a winch is required, a complicated process such as attachment and detachment and operation of the winch is required, and a folding and unfolding work time of the snow protection plate unit group is long.

An object of the present invention is to provide a folding and deploying type snow fence which can easily and quickly fold and deploy the snow protection plate unit group without using a winch.

[Means for Solving the Problems]

In order to achieve the above object, in the folding deployable snow fence of the present invention, the even number of intermediate snow-snowboard unit 1, upper snow-snowboard unit 2, and lower snow-snowboard unit 3 extending in the lateral direction are in parallel state. Are arranged side by side in the vertical direction, and the center part of the interlocking long link 4 is arranged in the widthwise center part of the longitudinal end part of each intermediate snow protection plate unit 1 so that the center part of the interlocking long link 4 intersects in an X shape. Each of the interlocking long links 4 is arranged in parallel with each other, and both ends of each interlocking long link 4 are pivotally attached to the widthwise end portions of the intermediate snow protection plate unit 1, and the longitudinal direction of the upper snow protection plate unit 2. One end of the interlocking short link 6 parallel to the interlocking long link 4 is pivotally attached by the horizontal shaft 5 to the center of the end in the width direction, and the other end of the interlocking short link 6 is an intermediate snow protection plate. It is pivotally attached to the upper end of the unit 1 in the width direction and One end of the interlocking short link 7 parallel to the interlocking long link 4 is pivotally attached by the horizontal shaft 5 to the central portion in the width direction of the longitudinal end portion of the snow protection plate unit 3, and the interlocking short link 7 is The other end is pivotally attached to the widthwise lower end of the intermediate snow cover unit 1, and a support link 10 parallel to the intermediate snow cover unit 1 is arranged at the center of the intermediate snow cover unit 1 arranged in the vertical direction. Both ends of the support link 10 are pivotally attached to the interlocking long link 4, and the center portion of the support link 10 is pivotally attached to the support column 8 by a support shaft 11.
A supporting member 9 attached to a horizontal shaft 5 attached to the intermediate snow-preventing plate unit 1, the upper snow-preventing plate unit 2 and the lower snow-preventing plate unit 3 is fitted to a column 8 so as to be vertically movable.

[Action]

When the lower snow plate unit 3 in the deployed snow plate unit group is pushed up and moved, the snow plate unit above the center in the height direction of the snow plate unit group moves down and the snow plate unit group rises. Folds toward the center of the direction. When the lower snow plate unit 3 in the folded snow plate unit group is moved down, the snow plate unit above the center in the height direction of the snow plate unit group moves upward, and the snow plate unit group moves up and down. It will be expanded.

〔Example〕

 The present invention will now be described in detail with reference to the illustrated example.

17 to 19 show an intermediate snow-prevention plate unit 1 used in an embodiment of the present invention, in which the width direction of a snow-prevention plate 15 made of a trapezoidal corrugated steel plate extending in the lateral direction (left-right direction). A horizontal shaft 5 made of a steel pipe extending in the longitudinal direction of the snow protection plate is fitted in the groove of the central portion, both ends of the horizontal shaft 5 project from the snow protection plate 15, and an end portion having a horizontal fitting recess in the center. The frame member 16 is arranged at both ends of the snow plate 15 so as to extend in the width direction of the snow plate, is fitted to the horizontal shaft 5, and further has an intermediate frame member 17 having a horizontal fitting recess.
Is arranged so as to extend in the width direction of the snow plate at the middle portion of the snow plate 15 in the longitudinal direction and is fitted to the horizontal shaft 5, and the end frame member 16, the intermediate frame member 17, and the snow plate 1 are attached.
5. The horizontal shaft 5 is connected to the horizontal shaft 5 by bolts 18, and pivots 19 parallel to the horizontal shaft 5 are fixed to both ends of the end frame member 16 by welding.

FIG. 20 shows the upper snow-preventing plate unit 2 and the lower snow-preventing unit 3 used in the embodiment of the present invention, in which the pivot 19 is fixed to one end of the end frame member 16 by welding. Other configurations are similar to those of the intermediate snow protection plate unit 1.

1 to 7 show a snow cover according to one embodiment of the first invention in which a snow cover unit group consisting of the intermediate snow cover unit 1, the upper snow cover unit 2 and the lower snow cover unit 3 is expanded and held by a column 8. A shelf 8 is shown, in which pillars 8 having an H-shaped cross section are erected at intervals along the side of the road, and the grooves of each pillar 8 are arranged so as to open in the longitudinal direction of the road. A stiffening member 20 made of steel is fixed to the side surface of the road center side of 8 by welding, and the lower end of the pillar 8 and the lower end of the stiffening member 20 are fixed to the steel seat plate 21 by welding. 21 is placed on a foundation concrete 22 and fixed by anchor bolts 23.

Between the adjacent columns 8, one intermediate snow plate unit 1, the upper snow plate unit 2 and the lower snow plate unit 3 so as to incline obliquely downward from the side opposite to the road 24 toward the road side, Further, they are arranged parallel to each other, and the central portion of the interlocking long link 4 is rotatably fitted to the horizontal shaft 5 of the intermediate snow protection board unit 1, and the intermediate snow protection board unit 1 is also provided.
The end frame member 16 and the interlocking long link 4 intersect in an X-shape, and further, the interlocking short link arranged parallel to the upper part of the interlocking long link 4 on the horizontal axis 5 of the upper snow plate unit 2. One end of the link 6 is rotatably fitted, and the other end of the interlocking short link 6 has the other end frame member 1 in the intermediate snow protection plate unit 1.
A pivot shaft 19 at the upper end of 6 is rotatably fitted.

One end of the interlocking short link 7 arranged in parallel to the lower portion of the interlocking long link 4 has a horizontal axis 5 of the lower snow protection plate unit 3.
Is rotatably fitted to the lower end of the end frame member 16 of the intermediate snow cover unit 1, and the other end of the interlocking short link 7 is rotatably fitted to the cylindrical body. An annular bearing member 2 consisting of a pair of circular flanges fixed to the
5 is rotatably fitted to the horizontal shaft 5 of the intermediate snow-prevention plate unit 1, and is further attached to the horizontal shaft 5 of the upper snow-prevention plate unit 2 and the lower snow-prevention unit 3 with a cylindrical body and a pair of circular flanges fixed thereto. An annular bearing member 9 composed of and is rotatably fitted, and the annular bearing member 25 is fitted in the groove of the column 8, and the annular bearing member 25 has an upper portion and a lower portion between a pair of circular flanges. The upper bolt 27 and the lower bolt 2 which are inserted over the respective flanges 26 of the column 8.
8 are arranged, and the upper bolt 27 and the lower bolt 2 thereof are arranged.
The horizontal shaft 5 of the intermediate snow-preventing plate unit 1 is held at a predetermined level by means of the ring-shaped support member 25.

The support member 9 is fitted in the groove of the column 8 so as to be vertically movable and rotatable, and a snow plate unit group consisting of an intermediate snow plate unit 1, an upper snow plate unit 2 and a lower snow plate unit 3 is vertically arranged. In the unfolded state, that is, in the state where the continuous link mechanism including the interlocking long link 4, the interlocking short links 6 and 7, and the end frame member 16 of each snowproofing plate unit is extended, the upper snowproofing plate unit 2 And, the supporting member 9 fitted to the horizontal shaft 5 of the lower snow plate unit 3 is held by the pair of upper and lower bolts 12 and 13 inserted through the respective flanges 26 of the support pillar 8 so as not to move up and down, and the adjacent support pillars. The steel connecting beam 29 arranged over the upper end portion of 8 is fixed to the column 8 by bolts.

When folding the snow plate unit group, after removing the bolt 13 on the center side of the snow plate unit group from the pair of upper and lower bolts 12 and 13, press the lower snow plate unit 3 in the snow plate unit group by inputting. Move up.
By doing so, the upper snow protection plate unit 2 moves downward due to the action of the continuous link mechanism, so that a small pushing force is applied to the lower snow protection plate unit 3 to fold the snow protection plate unit group to the center in the height direction. be able to.

After folding the snow protection plate unit group, as shown in FIGS. 8 and 9, it contacts the upper part of the bearing member 9 fitted to the horizontal shaft 5 of the upper snow protection plate unit 2 over each flange 26 of the support column 8. Alternatively, the adjacent bolts 14 are fitted and the bolts 14 that come into contact with the lower part of the support member 9 fitted to the horizontal shaft 5 of the lower snow plate unit 3 are fitted and the snow plate unit group is folded by the bolts 14. Hold on.

As the bolt 14, the removed bolt 13 is diverted.

When deploying the snow plate unit group again, use the bolt 1
After removing 4, the lower snow-prevention plate unit 3 in the snow-prevention plate unit group is manually moved down. In this way, the upper snow protection plate unit 2 is lifted by the action of the continuous link mechanism, so that by applying a small pulling force to the lower snow protection plate unit 3, the snow protection plate unit group can be expanded to the upper and lower sides. .

10 to 14 show the intermediate snow plate unit 1,
The state which expanded and hold | maintained the folding expansion | deployment type snow protection fence which concerns on one Example of 2nd invention using the upper snow protection board unit 2 and the lower snow protection board unit 3, Comprising: The two intermediate snow plate units 1, the upper snow plate unit 2, and the lower snow plate unit 3 are arranged parallel to each other so as to incline obliquely downward from the side opposite to the road 24 toward the road side. The central portion of the interlocking long link 4 is rotatably fitted to the horizontal shaft 5 of the intermediate snow cover unit 1, and the end frame member 16 of the intermediate snow cover unit 1 and the interlocking long link 4 are X-shaped. Both ends of each interlocking long link 4 are rotatably fitted to a pivot 19 of an end frame member 16 of the intermediate snow protection plate unit 1.

A support link 10 extending parallel to the end frame member 16 is arranged in the center between the end frame members 16 of the intermediate snow protection plate units 1 that are vertically adjacent to each other, and both ends of the support link 10 are interlocked. The support shaft 11 pivotally attached to the long link 4 by a pin 30 and rotatably fitted in the central portion of the support link 10 is fixed by welding to a rib plate 31 to which the support column 8 is fixed. Snow plate unit 1
The support member 9 is rotatably fitted to the horizontal shaft 5 of
Other configurations are similar to those of the first embodiment.

FIG. 15 and FIG. 16 show a folded state of the folding deployable snow fence according to the embodiment of the second invention.
The folding and unfolding means and the unfolding and holding means of the folding and deploying type snow fence according to the embodiment of the second invention are the same as those in the first invention.

When carrying out the first invention, as the means for rotatably supporting the horizontal shaft 5 of the intermediate snow protection board unit 1 by the support columns 8, any supporting means other than those shown in the drawings may be adopted. Alternatively, the number of the sheets 1 may be three, and the horizontal shaft 5 of the intermediate snow protection plate unit 1 in the central portion may be rotatably attached to the column 8. When carrying out the second invention, the intermediate snow protection plate unit 1
And the support link 10 is arranged in parallel with the end frame member 16 of the intermediate snow protection plate unit 1 at the center in the height direction of the snow protection plate unit group.
Both ends may be pivotally attached to the interlocking long link 4.

When carrying out the present invention, the support member 9 may be provided integrally with the horizontal shaft 5. Further, the support member 9 may be integrally provided at one end of each of the interlocking short link 6 and the interlocking short link 7. [Advantages of the Invention] Since the present invention is configured as described above, it will be described below. Produce an effect.

When the lower snow plate unit 3 in the deployed snow plate unit group is pushed up and moved by human power, the continuous link mechanism works so that the snow plate below the central portion in the height direction of the snow plate unit group. As the unit moves up, the snow plate unit above the center in the height direction of the snow plate unit group moves down, and the lower snow plate unit 3 in the folded snow plate unit group is manually lowered. As it moves, the function of the continuous link mechanism causes the snow plate unit below the center of the snow plate unit group in the height direction to move downward, and from the center of the snow plate unit group in the height direction. Also, the snow plate unit above is lifted, and the weight of the snow plate unit that is moved upside down by the continuous link mechanism is the same. Since it is, the lower snow board unit 3
By applying a small push-up force or pull-down force to
The snow protection plate unit group can be folded or unfolded, so that the snow protection plate unit group can be easily and quickly folded and unfolded by human power without using a winch.

Also, with the snow protection plate unit group expanded, the horizontal axis 5 attached to the upper snow protection plate unit 2 and the lower snow protection plate unit 3
The supporting member 9 attached to the column is held by the pair of upper and lower bolts 12 and 13 inserted through the support column 8 so as not to move up and down, so that the snow-preventing plate unit group is firmly held in the deployed state by a simple means. Further, with the snow protection plate unit group folded, the support member 9 attached to the horizontal shaft 5 attached to the upper snow protection plate unit 2 and the lower snow protection plate unit 3 is attached by the bolt 14 inserted into the support column 8. By holding the continuous link mechanism so as not to move in the extension direction, it is possible to reliably hold the snow protection plate unit group in the folded state by a simple means.

[Brief description of drawings]

1 to 9 show an embodiment of the first invention, FIG. 1 is a vertical sectional side view showing a state in which a group of snow-prevention plate units in a snow-prevention fence are expanded and supported, and FIG. 1 is an enlarged sectional view taken along the line AA in FIG. 1, FIG. 3 is a vertical cross-sectional side view showing a part of a snow-prevention plate unit group which is unfolded and supported by columns, and FIG. 4 is a partial vertical front view thereof. The figure is a vertical cross-sectional side view showing the middle portion of FIG. 3 in an enlarged manner, FIG. 6 is a partially cutaway front view thereof, FIG. 7 is a front view showing a snow fence which has developed a snow plate unit group, and FIG. FIG. 9 is a vertical cross-sectional side view showing a state in which the snow-prevention plate unit group in the snow-prevention fence is folded, and FIG. 9 is an enlarged vertical side view showing the snow-prevention plate unit group that is folded and supported by a support. FIGS. 10 to 16 show an embodiment of the second invention, FIG. 10 is a vertical cross-sectional side view showing a state in which the snow protection plate unit group in the snow protection fence is expanded and supported, and FIG. 11 is expanded. FIG. 12 is a vertical cross-sectional side view showing a part of the snow-prevention plate unit group that is supported by the columns, FIG. 12 is a partial vertical front view thereof, and FIG. 13 is a vertical cross-sectional side view showing an intermediate portion of FIG. 11 in an enlarged manner. , FIG. 14 is a partially cutaway front view thereof, FIG. 15 is a vertical cross-sectional side view showing a state in which a snow protection plate unit group in a snow fence is folded, and FIG. 16 is a snow protection plate unit group folded and supported by columns It is a vertical side view which expands and shows. FIG. 17 is a front view of an intermediate snow protection plate unit used in an embodiment of the present invention, FIG. 18 is a side view thereof, and FIG.
17 is a sectional view taken along the line BB of FIG. 17, and FIG. 20 is a front view of an upper snow plate unit and a lower snow plate unit used in an embodiment of the present invention. In the figure, 1 is an intermediate snow plate unit, 2 is an upper snow plate unit, 3 is a lower snow plate unit, 4 is a long link for interlocking, 5 is a horizontal axis, 6 and 7 are short links for interlocking, 8 is a post, 9 Is a support member, 10 is a support link, 11 is a support shaft, 1
2, 13 and 14 are bolts, 15 is a snow plate, 16 is an end frame member, 19 is a pivot, 21 is a seat plate, 22 is basic concrete, 23 is an anchor bolt, 25 is an annular support member, 2
7 is an upper bolt, 28 is a lower bolt, 30 is a pin, 31
Is a rib plate.

Claims (1)

[Claims] 1. An even number of intermediate snow protection plate units 1, an upper snow protection plate unit 2 and a lower snow protection plate unit 3 each extending in the lateral direction are arranged in parallel in a vertical direction,
The center portion of the interlocking long link 4 is arranged at the center portion in the width direction of the longitudinal end portion of each intermediate snow protection plate unit 1 so that the center portion of the interlocking long link 4 intersects in an X shape and is pivotally attached by the horizontal shaft 5, The long links 4 are arranged in parallel, and both ends of each interlocking long link 4 are pivotally attached to the widthwise ends of the intermediate snow protection plate unit 1 and at the widthwise center of the longitudinal ends of the upper snow protection plate unit 2. ,
One end of the interlocking short link 6 parallel to the interlocking long link 4 is pivotally attached by the horizontal shaft 5, and the interlocking short link 6 is
The other end of the link is pivotally attached to the upper end in the width direction of the intermediate snow plate unit 1, and the interlocking short link 7 parallel to the long link 4 for interlocking is provided at the center in the width direction of the longitudinal end of the lower snow plate unit 3. One end of the intermediate snow protection board unit 1 is pivotally attached by the horizontal shaft 5, and the other end of the interlocking short link 7 is pivotally connected to the lower end of the intermediate snow protection board unit 1 in the width direction, and the intermediate snow protection board units 1 are arranged vertically. A support link 10 parallel to the intermediate snow protection plate unit 1 is arranged in the center, and both ends of the support link 10 are pivotally attached to the interlocking long link 4 and the support link 10 is provided.
The central portion of the is pivotally attached to the support column 8 by a support shaft 11, and a support member 9 attached to the horizontal shaft 5 attached to the intermediate snow protection plate unit 1, the upper snow protection plate unit 2 and the lower snow protection plate unit 3 is attached to the support post 8. Folding expansion type snow fence that is fitted so that it can be raised and lowered.