JPH0569923B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention deploys a plurality of snow protection plates in the vertical direction during winter, and lowers the plurality of snow protection plates and installs them in the front and rear directions during seasons other than winter. This relates to snow fences that can be stacked and stored.

[Conventional technology]

Conventionally, the snow fences shown in Figures 25 to 28 were
As shown in the figure, a pulley 3 is attached to the upper end of the column 14 supported by the column support member 1,
A horizontal rod 16 is fixed to the middle part in the width direction of the snow protection board 15 extending in the horizontal direction to constitute a snow protection board unit 17, and both ends of the plurality of snow protection board units 17 arranged at intervals in the vertical direction are in the upper part. A support member that is connected via the link 18 and the lower link 19, has a one-way rotation limiting locking fitting 20 fixed to the upper end of the lower link, and is attached to the end of the horizontal rod 16 in each snow protection board unit 17. 21 is the pillar 1
The horizontal rod 16 of the uppermost snow protection plate unit 17 is supported by the elevating strip 11 wrapped around the pulley 3, and is arranged in the guide space 22 of the snow protection plate unit 17 so as to be movable and unrotatable. Vertical guide member 2 extending vertically below the space 22
3 and an inclined support member 12 for supporting member storage, which is inclined diagonally downward toward the rear from the lower end of the vertical guide member 23, are supported by the support support member 1. A snow protection fence having a structure in which a stopper 13 is attached to the lower end has been proposed.

[Problem to be solved by the invention]

In the case of the conventional snow prevention fence, the vertically adjacent snow prevention plate units 17 have locking fittings 20 at their upper ends.
Since the snow protection plate unit 17 is connected via the lower link 19 and the upper link 18 so as to be able to overlap and deploy, the assembly and deployment mechanism of the snow protection plate unit 17 is complicated. Further, as shown in FIG. 25, when a plurality of snow protection board units 17 that are deployed in the vertical direction are lowered and the snow protection board units 17 are stored so as to overlap in the front and rear direction as shown in FIG. 28, When the upper snow protection board unit 17 descends after the support member 21 attached to the lower snow protection board unit 17 hits the inclined support member 12, the upper link 18 and the lower link 19 rotate. , the distance between the supporting points of each link 18, 19 is always constant both when each snow protection board unit 17 is deployed and when it is stacked, so when each snow protection board unit is lowered and stacked, there is a large back and forth movement. Therefore, there is a problem that the space occupied when the snow protection plate units are stored so as to overlap in the front and rear direction increases.

This invention reduces the number of links provided between the ends of vertically adjacent snow protection boards to simplify the stacking and unfolding mechanism of snow protection boards, and also allows multiple snow protection boards to be lowered and moved forward and backward. It is an object of the present invention to provide a snow prevention fence that can reduce the space occupied when the fences are stored in an overlapping manner.

[Means to solve the problem]

In order to achieve the above object, in the snow prevention fence of the present invention, a pulley 3 is attached to the upper end of a column 2 supported by a column support member 1, and a plurality of snow prevention plates 4 extending laterally are arranged vertically. A non-circular support member 5, which is arranged in parallel to the support column 2 and fixed to the widthwise intermediate portion of both ends of each snow protection board 4, is
One end of the link 7 is fitted into the guide groove 6 extending in the vertical direction in a vertically extending direction, and is fitted so as to be able to rise and fall freely but not to rotate. is pivoted to the horizontal shaft 8,
A long hole 9 extending in the longitudinal direction of the link is provided on the other end side of the link 7, and pins 10 fixed to the tops of both ends of the lower snow protection plates 4 adjacent to each other in the vertical direction are attached to the upper snow protection plates 4. The elevating strip 11 that is fitted into the long hole 9 of the attached link 7 and wrapped around the pulley 3 is connected to the support member 5 attached to the uppermost snow protection plate 4 and fixed to the column support member 1. The high level end of the tilted support member 12 for storing the supporting member is disposed below the lower end of the guide groove 6, and a stopper 13 projecting upward is attached to the low level end of the tilted support member 12. It is being

[Effect]

When each snow protection board 4 deployed in the vertical direction is lowered by the elevating strip 11, the supporting members 5 attached to the lower snow protection boards 4 adjacent to each other in the vertical direction are moved down.
After hitting the inclined support member 12 and sliding on the inclined support member 12 and stopping,
As the upper snow protection plate 4 descends, the pin 10 attached to the lower snow protection plate 4 moves the long hole 9 of the link attached to the upper snow protection plate from the link end toward the center of the link, and the link also moves. The inclined support member 12 rotates about the horizontal shaft 8 and the pin 10 as a fulcrum.
Support member 5 of the upper snow protection board 4 lowered onto
automatically slides on the inclined support member 12 toward the lower level side.

Furthermore, when the snow protection board 4 is lifted by the lifting strip 11, the link 7 attached to the upper snow protection board 4 rotates around the horizontal axis 8, and then the pin 10 attached to the lower snow protection board 4 rotates. , moves inside the elongated hole 9 from the link center side toward the link end, and then the lower snow protection plate 4 is lifted up by the upper snow protection plate 4 via the link 7 and the pin 10.

〔Example〕

Next, the present invention will be explained in detail using illustrated examples.

Figures 12 to 15 show a pulley and a support column 2 with guide grooves used in an embodiment of the present invention.
A web of T-shaped steel 28 is fixed by welding to the central outer surface of the flange of H-shaped steel 27 to constitute the column 2, and the flange of the H-shaped steel 27 and the T-shaped steel 28 are used to form upper and lower sections. A guide groove 6 extending in the direction of Two pulleys 3 are attached to the upper end by horizontal shafts, and a connecting plate 30 having bolt holes is fixed, and a connecting plate 31 having bolt holes is fixed to the lower end of the H-shaped steel 27. A support column fixing plate 32 having bolt holes is fixed thereto, and a lifting restriction stopper 24 is fixed to the upper end side of the rear flange of the H-shaped steel 27 by welding.

A reinforcing plate 33 is fixed to the lower front flange and rear flange of the H-shaped steel 27 by welding, and a through hole 34 for passing the pivot is provided between the reinforcing plate 33 and the flange, and A through hole 36 for inserting a holding bolt is provided in the upper part of the plate 33 across the retaining plate 35 fixed to each flange of the H-shaped steel 27 and the web of the H-shaped steel 27, and furthermore, the pulley 3 and the retaining plate 35 are connected to each other. Between H
A strip steady rest fitting 37 is fixed across each flange of the section steel 27, and a plurality of bolt insertion holes 38 are provided at intervals in the longitudinal direction of the H section steel on both left and right sides of the rear flange. In the middle between the pulley 3 and the reinforcing plate 33, on both left and right sides of the front flange of the H-section steel 27, bolt locking holes 39 are provided, each consisting of a circular hole and a slit connected to the lower part of the hole.

16 to 18 show an intermediate snow protection plate 4 having a support member and a pin used in an embodiment of the present invention, and both ends of a corrugated board 40 made of expanded metal extending in the lateral direction. A side frame member 41 made of angle iron is fixed by welding to form the snow protection plate 4, and a side frame member 41 is fixed to the side frame member 41 by welding. One end of the support plate 42 located on the extension surface is fixed by welding, and a non-circular plate 25 having a front and rear surface parallel to the longitudinal direction of the side frame member 41 is attached to the tip of the support plate 42. The support plate 42 and the non-circular plate body 25 constitute the support member 5.

Further, the support plate 42 is provided with a through hole for bolt insertion, a nut 43 is fixed by welding, and a horizontal shaft 8 for a link pivot is provided at the center of the longitudinal direction of the frame member on the other side of the side frame member 41. A pin 10 extending in the left-right direction is fixed by welding to a mounting bracket 44 that is inserted through and fixed by welding and further fixed to the upper end of the side frame member 41.

FIGS. 19 and 20 show a lower end snow protection plate 45 with an engaging pin used in an embodiment of the present invention.
The peripheral edge of an expanded metal plate 47 is fixed by welding to a rectangular frame 46 extending in the horizontal direction, and the lower end snow protection plate 45
Engagement pins 48 extending in the left-right direction are fixed by welding to the lower ends of the frame 46, and through-holes 49 for bolt insertion are provided at the upper ends of the frame 46.

Figures 1 to 11 are similar to Figures 12 to 1.
A support column 2 with a pulley and a guide groove shown in FIG. 5, an intermediate snow protection plate having a support member and a pin shown in FIGS. This figure shows a snow prevention fence assembled and installed using the lower end snow prevention plate 45 with an engagement pin shown in FIG.
The lower ends of the front vertical frame 50 and rear vertical frame 51 arranged at intervals are fixed to the seat plate 52 by welding, and the front vertical frame 50 is located on the road side and the lower end part of the rear vertical frame 51 is located on the opposite side from the road. An upper connecting member 53 is disposed across one side in the left and right direction on the upper end side of the rear vertical frame 51 and is fixed by welding, and a column lower end support member 54 is further disposed between the front vertical frame 50 and the rear vertical frame 51. are installed and fixed by welding, and the front vertical frame 50 and the rear vertical frame 51 are fixed to the seat plate 52, and the upper connecting member 53 is fixed across the front vertical frame 50 and the rear vertical frame 51.
The steel column support member 1 is constituted by the column lower end support member 54 and the column lower end support member 54 .

A large number of pillar support members 1 configured as described above
are arranged at intervals in the longitudinal direction (horizontal direction) of the road, and a seat plate 52 at the lower end of the column support member 1 is placed on a concrete foundation 55 and fixed to an anchor bolt 56.

The guide groove 6 in the pillar 2 is installed so as to face in the left-right direction, and the H-shaped steel 2 in the pillar 2
The lower part of 7 is installed between the front vertical frame 50 and the rear vertical frame 51, and further includes the upper part of the front vertical frame 50, the upper part of the rear vertical frame 51, the H-shaped steel 27 and the reinforcement fixed thereto. A pivot 57 consisting of a bolt extending in the front-rear direction across the plate 33 is inserted, and the H
The column fixing plate 32 at the lower end of the shaped steel 27 and the column lower end support member 54 in the column support member 1 are connected to the bolt 5
8 and is removably connected.

An inclined support member 12 for storing a supporting member, which is made of a band-shaped plate that slopes diagonally downward toward the rear, is bent and connected to the lower end of the vertical guide member 59 that is made of a vertical band-shaped plate, and the lower end of the inclined support member 12 The lower end of the stopper 13 is fixed by welding to the vertical guide member 59, the inclined support member 12, and the center portion of the stopper 13 in the width direction.
0 is fixed by welding, and the guide storage member 61
The mounting bracket 62, which is configured and fixed to the guide housing member 61, is placed on a receiving bracket 63 fixed to the rear vertical frame 51 of the column support member 1 and fixed with a bolt 64, and is fixed to the inclined support member 1. The high level end portion of 12 is located below the lower end portion of the guide groove 6 .

A plurality of (four in the illustrated case) snow protection boards 4 are vertically arranged in close proximity in the vertical direction and lined up in series, and the side frame members 41 of the upper snow protection boards 4 adjacent to each other in the vertical direction A part of the link 7 is pivotally attached to the center by a horizontal shaft 8, and a long hole 9 extending in the longitudinal direction of the link is provided at the other end of the link 7, and both ends of the lower snow protection plates 4 adjacent to each other in the vertical direction are provided. The pin 10 fixed to the upper part of the link 7 is slidably and rotatably inserted into the long hole 9 of the link 7, and the non-circular plate 25 of the support member 5 attached to each snow protection plate 4 is inserted into the long hole 9 of the link 7. A bolt 65 inserted into a through hole in the rear flange of the H-shaped steel 27 is screwed into a nut 43 that is fitted in the guide groove 6 so as to be movable up and down but not rotatable, and is also fixed to the support plate 42 of the support member 5. The snow protection plate 4 is fixed to the H-shaped steel 27 of the support column 2 by the bolts 65.

A bracket 66 is fixed to the support member 5 attached to the uppermost snow protection board 4, and one end of the elevating strip 11 made of a wire rope wrapped around the pulley 3 is connected to the bracket 66, and further A holding bolt 67 is inserted between an annular body provided at the other end of the strip 11 and a holding plate 35 fixed to the H-shaped steel 27. Further, the strip 11 is arranged inside the strip steady rest fitting 37, and the horizontal connecting rod 68 is arranged across the upper part of the front vertical frame 50 of the adjacent column support member 1, and the bolt 69
Fixed by

The lower end snow prevention plate 45 is disposed so as to extend across the rear vertical frames 51 of the vertically adjacent column support members 1, and the engagement pins 48 provided at the lower portions of both ends of the lower end snow prevention plate 45 are connected to the above-mentioned. It is inserted from above into the upper opening engagement portion formed by the rear vertical frame 51 and the locking fitting 70 fixed thereto, and furthermore, the upper portions of both ends of the lower end snow protection plate 45 are connected to the rear vertical frame 51. It is detachably fixed to the upper part of the body by a bolt 71.

The snow prevention plate 4 and the lower end snow prevention plate 45 have a windproof function as well as a snow prevention function.

If snow accumulates on the ground or roadbed in front of the lower end snow prevention plate 45, remove the bolts 71 connecting the upper part of the lower end snow prevention plate 45 and the rear vertical frame 51 of the column support member 1, and remove the lower end snow prevention plate 45. By lowering and rotating the board 45 to the position shown by the chain line in FIG. 1, an opening is provided between the lowest snow protection board 4 and the ground or roadbed, and the accumulated snow is passed through the opening to prevent snow. Can be discharged outside the fence.

If it is no longer necessary to use the windbreak fence after the winter season, as shown in Figures 1 and 4,
The manual hoisting machine 72 is detachably fixed to the front vertical frame 50 of the column support member 1, and the hoisting machine 72 is attached to the ring body at the end of the elevating strip 11 which has been removed from the holding bolt 67. A hook (not shown) at the end of the rope being let out from the drum is engaged, and then the bolt 65 is unscrewed and the connection between each snow protection plate 4 and the support column 2 is released, and then the rope is unwound. Upper machine 7
2 is operated for lowering.

In this way, as each snow protection board descends, each support member 5 descends within the guide groove 6, and the support members 5 attached to the lower snow protection boards 4 adjacent to each other in the vertical direction butt against the inclined support member 12. After hitting the inclined support member 12 and sliding to the lower level side and stopping, the upper snow protection plate 4 descends, and as shown in FIGS. 21 and 22, the lower snow protection plate 4 The pin 10 at the upper end of the link 7 is moved from the link end toward the link middle side within the long hole 9 of the link 7 attached to the upper snow protection plate 4.
are rotated about the horizontal axis 8, and as shown in FIG. 23, all the snow protection plates 4 are automatically stored in the inclined support member 12 in a state where they are stacked in the front-rear direction.

After each snow protection board 4 has been stored, the bolt 58 is removed and the connection between the column 2 and the column support member 1 is released, and then, as shown in FIG. The connecting plates 30 and 31 of the adjacent columns 2 are rotated 90 degrees and laid down, and the bolts 73
connected by. The upper part of the lower end snow protection plate 45 and the rear vertical frame 51 are uncoupled, and the lower end snow protection plate 45 is removed.
By leaning the upper part of the snow protection plate 4 against the snow protection plate 4 after storage, the weight of the lower end snow protection plate 45 can be used to prevent the snow protection plate 4 from shifting after storage.

When setting up a snow fence, perform the operations opposite to those for folding and storing. When erecting a snow fence,
In order to prevent the distance between the erected pillars from becoming incorrect,
Both ends of the connecting rod 68 are fixed to the upper portions of the adjacent columns 2 by bolts that are locked in the bolt locking holes 39 in the columns 2, and the support members 5 at both ends of each snow protection plate 4 are fixed to the columns 2. After fixing with the bolts 65, the connecting rod 68 may be removed from the support column 2.

When carrying out this invention, the upper and lower ends of the side frame members 41 at both left and right ends of the snow protection plate 4 are connected by a horizontal frame member, and the expanded metal corrugated plate body 40 is fixed to the horizontal frame members by welding. You may. Further, in order to provide the snow protection board with a windproof function, the snow protection board may be constructed by fixing side frame members to both ends of a corrugated metal plate extending in the lateral direction. Furthermore, the snow protection plate 4 may be constructed by fixing the peripheral edge of a flat expanded metal plate to a rectangular frame by welding.

〔Effect of the invention〕

Since this invention is configured as described above,
This produces the effects described below.

The number of links provided between the ends of the snow protection boards 4 adjacent in the vertical direction is only one, and a link 7 is provided at the middle part in the height direction at the end of the upper snow protection board 4.
One end of the pin 10 is pivotally connected to the horizontal shaft 8, and the pin 10 attached to the upper end of the lower snow protection plate 4 is fitted into the elongated hole 9 provided at the other end of the link 7. With a simple mechanism, the snow protection plates 4 can be deployed vertically in series in a vertical state, or can be stored in a vertical state overlapping in the front-rear direction at the inclined support member 12. 7
can be rotated smoothly, and as each snow protection board 4 that is deployed vertically is lowered by the lifting strip 11, the support attached to the lower snow protection board 4 adjacent to the vertical direction is lowered. After the member 5 collides with the inclined support member 12 and slides on the inclined support member 12 and stops, the pin 10 attached to the lower snow protection plate 4 moves down to the upper snow protection plate 4 due to the lowering of the upper snow protection plate 4. Link 7 attached to snow protection plate 4
When the elongated hole 9 is moved from the link end toward the center of the link, and the link 7 is rotated about the horizontal axis 8, so that each snow protection plate 4 is lowered to the lower storage position and stored, By reducing the distance between the column support member 1 and the stored snow protection board 4, the space occupied when the snow protection board is stored can be reduced.

[Brief explanation of drawings]

1 to 11 show the state of each part of the snow fence according to the embodiment of the present invention when it is deployed and used in winter, and FIG. 1 is a vertical side view of the snow fence; Figure 2 is a front view of the snow prevention fence, Figure 3 is a rear view of the snow prevention fence, Figure 4 is an enlarged vertical side view of the lower part of Figure 1, and Figure 5 is the upper part of Figure 1. 6 is an enlarged rear view of the lower part of the snow fence, FIG. 7 is a partially cutaway front view of the upper part of the snow fence, and 8
The figure is a partially cutaway rear view showing an enlarged upper part of the snow fence, Figure 9 is a sectional view taken along line A-A in Figure 7, and Figure 10 is a cross-sectional view taken along the line A-A in Figure 7.
The figure is a front view of the snow fence, and FIG. 11 is a cross-sectional plan view showing the connection structure between the column support member and the lower end of the column. 12 to 15 show a pulley and a strut with a guide groove used in an embodiment of the present invention, in which FIG. 12 is a front view and FIG. 13 is a front view.
The figure is a side view, Figure 14 is a rear view, and Figure 15 is a side view.
FIG. 4 is a sectional view taken along line BB in FIG. 4; 16 to 18 show an intermediate snow protection plate having a support member and a pin used in an embodiment of the present invention, in which FIG. 16 is a rear view and FIG. 17 is a partially enlarged view. FIG. 18 is an enlarged side view showing a portion of the rear view. FIG. 19 is a rear view of the lower end snow protection plate, and FIG. 20 is a rear view showing a part of FIG. 19 on an enlarged scale. FIG. 21 and FIG. 22 are vertical side views showing the state when the snow protection board is stored in the lower part;
FIG. 23 is a longitudinal side view showing the snow fence in a folded state, and FIG. 24 is a front view thereof. Figures 25 and 26 show a conventional snow fence, in which Figure 25 is a vertical side view showing the snow fence in an expanded state, and Figure 26 is an enlarged view of the upper part of Figure 25. FIG. 27 is an enlarged longitudinal side view of the upper part of the snow protection fence, and FIG. 28 is a longitudinal side view showing a state in which the snow protection plates are stored in the lower part. In the figure, 1 is a column support member, 2 is a column, and 3 is a column support member.
is a pulley, 4 is a snow protection plate, 5 is a support member, 6 is a guide groove, 7 is a link, 8 is a horizontal shaft, 9 is a long hole, 10 is a pin, 11 is a strip for lifting, 12 is a slope for storing the support member Support members, 13 is a stopper, 24 is a lifting restriction stopper, 27 is an H-shaped steel, 28 is a T-shaped steel, 29 is a guide plate, 32 is a column fixing plate, 40 is an expanded metal corrugated plate body, 41 is a side Part frame material, 45 is a lower end snow protection plate, 47 is an expanded metal plate body, 48
is an engagement pin, 54 is a column lower end support member, 55 is a concrete foundation, 56 is an anchor bolt, 57 is a pivot, 58 is a bolt, 59 is a vertical guide member, 60
is a stiffening partition plate, and 61 is a guide storage member.

Claims (1)

[Claims] 1 Post 2 supported by post support member 1
A non-circular support member has a pulley 3 attached to its upper end, a plurality of snow protection plates 4 extending laterally are arranged in parallel in the vertical direction, and is fixed to the widthwise intermediate portion of both ends of each snow protection plate 4. 5 is fitted into a guide groove 6 extending in the vertical direction in the support column 2 so as to be able to rise and fall freely but not rotate, and is located at the center in the height direction at the end of the upper snow protection plate 4 that is adjacent to the upper snow protection plate 4 in the vertical direction. ,
One end of the link 7 is pivotally connected to the horizontal shaft 8, and the other end of the link 7 is provided with a long hole 9 extending in the longitudinal direction of the link. The pin 10 fixed to
The elevating strip 1 is fitted into the elongated hole 9 of the link 7 attached to the upper snow protection board 4 and is wrapped around the pulley 3.
1 is connected to a support member 5 attached to the uppermost snow protection plate 4, and the high level end of the support member storage inclined support member 12 fixed to the column support member 1 is connected to the lower end of the guide groove 6. A snow protection fence in which a stopper 13 that is disposed below and projects upward is attached to a low-level end of the inclined support member 12.