JP2000154586A - Reversing device for side drain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily roll a side drain by a manual labor, share with the one of various sizes as much as possible, and improve flexibility to use a device anywhere easily by a simple structure. SOLUTION: A side drain S provided with a bottom wall 1 and a pair of sidewalls 2 and having an end opened part at its both end part is rolled by a reversing device K. The reversing device K is provided with a base member 10 for fitting into an end opened part of the side drain S, and a locking part 30 protruded from the base member 10, with which a stick material B is engaged, and for rolling the side drain S with the base member 10. The base member 10 is provided with a first base member 10A, and a second base member 10B provided freely to slide to the first base member 10A in a width direction of an end opened part 3 of the side drain S. Moreover, a locking mechanism 20 for locking the base member 10 at a required expanding and contracting position is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a side groove reversing device for rolling a side wall formed by a bottom wall and a pair of side walls erected on the bottom wall.

[0002]

2. Description of the Related Art Generally, as shown in FIG.
It has a bottom wall 1 and a pair of side walls 2 erected on both sides of the bottom wall 1. The bottom wall 1 has an end opening 3 at both ends and an upper opening 4 at the upper side. The side groove S has various dimensions, and as shown in FIG. 7C, the maximum dimension D between the side walls 2 of the side groove S is variously standardized as a so-called name. For example, as the dimension D, 150, 180,
240, 300, 360, 450, 600, 700, 8
Thicknesses of 00, 900 and 1000 mm are prepared.
When the gutter S is laid at a road edge or the like, the gutter S is transported to a site by a truck or the like, lifted and lowered by a crane or the like, and temporarily piled up and placed nearby. In general,
When placing this side groove S, since stability is good,
As shown in FIG. 7 (a), the upper opening 4 is turned downward, and
Place on top. For this reason, as shown in FIG. 7C, when the side groove S is laid, the upper opening 4 must be on the upper side and the bottom wall 1 must be on the lower side.
(B) As shown in (c), the side groove S is inverted by 180 degrees. Conventionally, at the time of this reversal, the side groove S was rolled by hand and turned 180 degrees. In addition, they are lifted upside down by a crane or the like and turned over.

As shown in FIG. 8, when the side grooves S are laid in a row, they may be connected diagonally at the corners of the road. 5 is cut diagonally with a concrete cutter. At the time of this cutting, as shown in FIG. 9, first, the bottom wall 1 is cut with the bottom wall 1 facing upward (FIG. 9 (a)), and then rolled by 90 degrees, Is cut off (FIG. 9 (b)).
It rolls 0 degrees (FIGS. 9 (c) and 9 (d)) and cuts the other side wall 2 (FIG. 9 (d)). Turn the bottom wall 1 down (Fig. 9
(E)). Conventionally, this cutting operation is also performed manually, or lifted and inverted by a crane or the like.

[0004]

However, when the conventional reversing operation of the side groove S is performed manually, the side groove S is not used.
Since is a heavy object, it has to be a laborious task, and the work is extremely complicated. In addition, a heavy object requires several people, resulting in a problem that the work efficiency is extremely poor. Further, when a crane or the like is used, the device becomes large-scale, so that the operation is complicated, and there are some places that cannot be used depending on the environment of the site, and there is a problem that the versatility is poor. Further, as described above, there is a fact that the side grooves S have various sizes having different maximum sizes D between the side walls 2. The present invention
In consideration of such problems, the side grooves can be easily rolled by hand, and can be used for various sizes as much as possible. An object of the present invention is to provide a versatile side groove reversing device that can be used.

[0005]

The technical means of the present invention for solving the above-mentioned problems comprises a bottom wall and a pair of side walls erected on both sides of the bottom wall. In a side groove reversing device for rolling a side groove having a portion,
A base member fitted to the open end of the side groove, and a bar material protruded from the base member toward the outside of the open end of the groove and the bar material is engaged with the base member so that the base material An engagement portion that enables the side groove to roll, a lock mechanism that locks the base member at a required expansion / contraction position by allowing the base member to expand and contract in the width direction of the end opening portion of the side groove. And

Accordingly, when the side groove is reversed, the width of the base member is adjusted in advance according to the size of the side groove. In this case, the base member is extended and contracted and locked at a required extension position by the lock mechanism. In this state, the base member is fitted into the open end portion of the side groove, the bar is engaged with the engaging portion, the bar is lifted, and the side groove is gradually rolled by leverage. In this case, since the side groove can be rolled by leverage of the bar, the side groove can be rolled very easily. In addition, since the base member has an extremely simple structure in which an engagement portion is provided, it is easy to carry, can be easily used anywhere regardless of the working environment, and versatility is improved. In this case, the width can be adjusted by expanding and contracting the base member and locked by the lock mechanism, so that the base member can be used for several types of side grooves having different sizes.
It is not necessary to separately manufacture a device adapted to each side groove, and the device can be shared.

If necessary, the base member is
A first base member and a second base member slidably provided in the width direction of the end opening portion of the side groove with respect to the first base member.
And a base member. Since the base member can be constituted by two members, the structure can be extremely simplified. Further, if necessary, the first base member is provided with a contact member facing the inner surface of one of the side walls of the side groove and capable of contacting the one side wall, and A pair of rail members extending toward the side wall of the side groove, the second base member, a contact member that is opposed to the inner surface of the other side wall of the side groove and can contact the other side wall,
A pair of slide members which are connected to the upper and lower ends of the contact member and extend toward one side wall and slide on the rail member of the first base member. Since the entire base member can be formed in a frame shape, it can be easily held by hand, can be reduced in weight, and can be easily handled. Further, if necessary, the lock mechanism may include a plurality of through holes provided in the first base member at intervals along the sliding direction, and an insertion hole provided in the second base member and corresponding to the through hole. And a bolt inserted into the corresponding through hole and the insertion hole, and a nut screwed into the bolt. The device can be configured with a simple mechanism, and the strength can be reliably ensured.

Further, if necessary, the engaging portion has an insertion hole through which the bar is inserted in a direction substantially perpendicular to the longitudinal axis of the side groove. Since the bar can be engaged only by inserting the bar into the insertion hole, the structure is further simplified. Furthermore, if necessary, a pair of the engaging portions are provided so as to face each other so that the bar is inserted. The bar is engaged at two places, the pressing of the bar is ensured, and the leverage of the bar is ensured. Further, if necessary, a plurality of pairs of the engaging portions are provided in a direction in which the insertion angles of the rods are different.
By replacing the bar, the angle of the bar can be set to a position where the rolling operation can be easily performed. Further, if necessary, the base member is provided with a rubber that elastically contacts the inner surface of the side groove.
Since the rubber elastically contacts the side wall, the impact force and the like are buffered, so that the base member is prevented from damaging or damaging the side groove. In addition, the rubber is hardly moved relative to the side wall due to the frictional force of the rubber, so that a situation in which the rubber is easily separated is prevented, and the rolling operation can be reliably performed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A side groove reversing device according to an embodiment of the present invention will be described below with reference to the accompanying drawings. Note that the same components as described above are denoted by the same reference numerals and described. FIG.
As shown in FIG. 5 to FIG. 5, the side groove S in which the reversing device K according to the embodiment of the present invention is used includes a bottom wall 1 and a pair of side walls 2 erected on both sides of the bottom wall 1, And an upper opening 4 on the upper side. In addition, the pair of side walls 2 are expanded upward.
Further, there are various sizes of the side groove S, and FIGS.
As shown in FIG. 7C, the maximum dimension D between the side walls 2 of the side groove S is variously standardized as a so-called name. For example, as the dimension D, 150, 180, 240, 30
0,360,450,600,700,800,90
The one with a diameter of 0,1000 mm is prepared.

The reversing device K according to the embodiment has a base member 10 fitted into the end opening 3 of the side groove S.
The base member 10 is formed to be extendable and contractable, and is locked at a required extension position by a lock mechanism 20. Specifically, the base member 10 is a frame-shaped first base member 10.
A, and a frame-shaped second base member 10B provided slidably in the width direction of the end opening 3 of the side groove S with respect to the first base member 10A. The first base member 10A includes a contact member 11 that faces the inner surface of the one side wall 2 of the side groove S and can contact the one side wall 2;
1 and a pair of rail members 12 which are connected to the upper and lower ends and extend toward the other side wall 2. Contact member 11
The rail member 12 is located on the outer periphery and has a piece 13a having a surface along the longitudinal direction of the side groove S, and is bent inward at a right angle from the piece 13a so that the outside of the end opening 3 of the side groove S faces the side. A metal angle member 13 made of steel or the like having an L-shaped cross section and having another piece 13b. Reference numeral 14 denotes a plate-like reinforcing member which is mounted on the other piece 13b of the angle member 13 constituting the pair of rail members 12 and fixed by welding.

The second base member 10B is opposed to the inner surface of the other side wall 2 of the side groove S and is capable of contacting the other side wall 2. A pair of slide members 16 extending toward one side wall 2 and sliding on the rail member 12 of the first base member 10A are provided. The contact member 15 and the slide member 16
Similarly to the first base member 10A, a piece 13a and a piece 13a located on the outer periphery and having a surface along the longitudinal direction of the side groove S are provided.
A metal member 13 made of steel or the like having an L-shaped cross section and having another piece 13b which is bent inward at a right angle from a and has the other end 13b facing the outer side of the end opening 3 of the side groove S. Reference numeral 17 denotes a plate-like reinforcing member which is bridged over the other piece 13b of the angle member 13 forming the pair of slide members 16 and fixed by welding.

As shown in FIG. 4A, a pair of left and right contact members 11 and 15 opposed to each other are symmetrically inclined in accordance with the expansion angle θ of the pair of side walls 2. The first and second base members 10A and 10B are slid to expand and contract, and the contact members 11 and 15 are brought into contact with the inner surface of the side wall 2 so that the first and second base members 10A and 10B can be fitted to the end opening 3 of the side groove S. I have. Further, a sheet-like rubber 18 elastically contacting the inner surface of the side groove S is adhered to one piece 13a of the angle member 13 constituting the left and right contact members 11, 15 via an adhesive.

The lock mechanism 20 includes a first base member 10A.
Angle members 13 constituting the pair of rail members 12
A plurality of through-holes 21 provided in the piece 13a at intervals along the sliding direction, and each of the angle members 13 forming the pair of slide members 16 of the second base member 10B.
And a bolt 23 inserted into the corresponding through-hole 21 and the through-hole 22 and a nut 24 screwed into the bolt 23. . In the embodiment, as shown in FIGS. 2 and 3, in each of the pair of angle members 13 forming the pair of rail members 12 of the first base member 10 </ b> A, a set of a pair of through holes 21 having a predetermined pitch P is set. Are provided at predetermined intervals L (a pair of a circle A and a circle B in the figure). Further, in each of the pair of angle members 13 constituting the pair of slide members 16 of the second base member 10B, one set of a pair of insertion holes 22 having a predetermined pitch P is provided. Thereby, the first base member 10A and the second base member 10B can be expanded and contracted at a predetermined interval L. That is, it is positioned at two positions: a reduced position Sa shown in FIG. 4 and an extended position Sb shown in FIG. 5 extended from the reduced position Sa by a predetermined distance L. In the embodiment, the width of the base member 10 is, for example, two types: a side groove S having a dimension D = 300 mm between the side walls 2 at the reduced position Sa, and a side groove S having a dimension D = 360 mm between the side walls 2 at the extended position Sb. Is set so as to be compatible with the side groove S.

Further, in the reversing device K according to the embodiment, the base member 1 is moved toward the outside of the end opening 3 of the side groove S.
0 and the bar B is engaged with the bar B
Accordingly, an engaging portion 30 that enables the side groove S to roll with the base member 10 is provided. The engagement portion 30 has an insertion hole 31 through which the bar B is inserted in a direction substantially perpendicular to the longitudinal axis of the side groove S. In addition, the engaging portion 3
Reference numeral 0 denotes a pair provided in opposition so that the bar B is inserted, and a plurality of pairs of the engaging portions 30 are provided in directions in which the insertion angles of the bar B are different. In the embodiment, the pair of engagement portions 30 has a rod B having an insertion angle of about 9
Two sets (X, Y) are provided in directions different by 0 degrees. More specifically, the engaging portion 30 is formed of a metal rod-shaped member such as iron bent substantially in a U-shape, and is formed of the first base member 1.
One is fixed to another piece 13b of the angle member 13 constituting the contact member 11 of 0A by welding, and one is fixed to the other piece 13b of the angle member 13 constituting the contact member 15 of the second base member 10B by welding. The two engagement portions 30 provided on the two contact members 11 and 15 form a pair of sets (X) of the engagement portions 30 and a pair of slide members 16 of the second base member 10B. The other piece 1 of the angle member 13
Each of the pair of slide members 16 is welded and fixed to one of the pair of slide members 16 to form another pair (Y) of the engagement portions 30. The bar B used
For example, metal pipes often used in construction work,
Any material such as a wooden stick may be used, and may be appropriately selected.

Accordingly, a case where the side groove S is reversed by the side groove reversing device K according to the embodiment of the present invention will be described. Here, the dimension D between the side walls 2 is D = 300 m
A description will be given of a case where two types of side grooves S are reversed, that is, a side groove S having a length m of m and a side groove S having a dimension D of 360 mm between the side walls 2. First, a description will be given of a case where the dimension D between the side walls 2 is reversed such that the dimension D is 300 mm.
The width of the base member 10 is adjusted according to the size of.
In this case, as shown in FIGS. 1 and 4, the first and second base members 10A and 10B are slid to each other to expand and contract, and locked by the lock mechanism 20 at the reduced position Sa. That is, the bolt 23 is inserted through the through-hole 21 and the insertion hole 22 that match at the reduced position Sa, and the nut 23 is inserted into the bolt 23.
Are screwed into the first and second base members 10.
A, 10B are fixed to each other. In this state, the side groove S
Is inverted. This will be described with reference to the process diagram shown in FIG.
First, as shown in FIG. 1, the reversing device K is located near the end opening 3 of the side groove S. In this case, since the reversing device K has a very simple structure in which the engaging portion 30 is provided on the frame-shaped base member 10, it is easy to carry, such as easy to carry, and can be used anywhere regardless of the surrounding work environment. Easy to use. In particular, since the base member 10 is formed in a frame shape, the base member 10 is easy to hold by hand, is lightweight, and is more easily handled.

Then, as shown in FIGS. 1 and 4 (a), the base member 10 of the reversing device K is fitted into the end opening 3 of the side groove S. In this case, the pair of left and right contact members 11 and 15 is brought into contact with the side wall 2.
15 is formed to be symmetrically inclined in accordance with the expansion angle (θ) of the pair of side walls 2, so that it is securely fitted to the side walls 2 by a wedge effect by being pushed into the bottom wall 1 side. , The situation of easy detachment is prevented. Further, since the sheet-like rubber 18 is stuck to the contact members 11 and 15, the rubber 18 elastically contacts the side wall 2, so that an impact force or the like is buffered.
Damage to the user, such as damage, can be prevented. Further, the frictional force of the rubber 18 ensures that the rubber member 18 is fitted to the side wall 2, so that also in this respect, a situation in which the rubber member 18 is easily detached can be prevented.

Next, as shown in FIGS. 4 (a) and 6 (a), for example, a bar B is inserted into a pair (X) of a pair of left and right engaging portions 30 parallel to the ground. The material B is lifted, and the side groove S is gradually rolled by leverage, and FIG.
First, as shown in FIG. In this case, the side groove S can be rolled by the leverage of the bar B by engaging the bar B with the engaging portion 30, so that the side groove S can be rolled very easily. In particular, in the case of the conventional manual operation, since the side groove S is a heavy object, it becomes a force operation, and the operation becomes extremely complicated. In addition, when the operation is heavy, several people are required. Although the efficiency has been extremely poor, since the rolling can be performed by the leverage of the bar B, even one person can easily work, and the working efficiency is improved. In addition, the engagement portion 30
Since a pair of bar members B are provided so as to face each other so that the bar members B are inserted, the bar members B are engaged at two places. The leverage action is reliably performed. Further, at the time of this rolling, the base member 10 is securely fitted to the side wall 2 by the wedge effect, and it is difficult to move with respect to the side wall 2 by the frictional force of the rubber 18, so that the base member 10 is easily detached. Is prevented, and the rolling operation is performed reliably.

Next, the bar B is pulled out from the engaging portion 30, and FIG.
As shown in FIG. 6D, the bar B is inserted into another pair (Y) of the pair of engaging portions 30 parallel to the ground, and FIGS.
As shown in the figure, the bar B is lifted, and the side groove S is further rolled 90 degrees by leverage of the bar B in the same manner as described above. In this case, since two pairs of the engaging portions 30 are provided in directions in which the insertion angles of the bar B are different by approximately 90 degrees, the bar B
Can be replaced to set the angle of the bar B at a position where the rolling operation can be easily performed. In this respect, work can be performed easily, and work efficiency can be improved. Further, in this case, similarly to the above, the side groove S can be rolled by the leverage of the bar B by engaging the bar B with the engaging portion 30, so that the side groove S can be rolled very easily. The work efficiency can be improved as compared with the conventional manual work. If the reversing device K is removed from the side groove S in this state, the side groove S
The work is easily performed when the upper opening portion 4 is on the upper side and the bottom wall 1 is on the lower side, and the side groove S is laid at the road end.

As described above, as shown in FIG. 8, when the side grooves S are laid in a row, they may be connected diagonally at the corner of the road. In this case, The end 5 of the side groove S is cut diagonally with a concrete cutter. At the time of this cutting, as in the above, the reversing device K
The base member 10 is fitted into the end opening 3 of the side groove S, the bar B is inserted into a pair of engagement portions 30, and the bar B is lifted and rolled sequentially by 90 degrees. The bottom wall 1 is cut with the bottom wall 1 facing up (FIG. 9A).
9 (b), and then roll 180 degrees (FIGS. 9 (c), (d)) to cut the other side wall 2 (FIG. 9 (b)). d)), and 90
Then, the upper opening 4 is turned up and the bottom wall 1 is turned down (FIG. 9E). Also in this case, as shown in FIG. 6, the bar B is engaged with the engaging portion 30 and the side groove S is formed by leverage of the bar B.
Can be rolled, the side groove S can be rolled very easily, and the cutting work efficiency is greatly improved.

Next, the dimension D between the side walls 2 is D = 360 mm
When the side groove S is reversed, the bolt 23 and the nut 24 of the lock mechanism 20 are removed, and the side groove S is removed.
The width of the base member 10 is adjusted according to the size of.
In this case, as shown in FIG. 5, the first and second base members 10A and 10B are slid to each other to expand and contract, and locked by the lock mechanism 20 at the extension position Sb. That is,
A bolt 23 is inserted into the through hole 21 and the insertion hole 22 that match at the extension position Sb, and a nut 24 is screwed into the bolt 23 and tightened, so that the first and second base members 10A and 10B.
Fix each other. In this state, a reversing operation is performed as shown in FIG. In this case, the lock mechanism 20
And adjust the width by expanding and contracting the base member 10,
It can be used for the side grooves S of different sizes only by locking again with the lock mechanism 20, so that it is not necessary to separately manufacture a device corresponding to each side groove S, and it can be shared, so that versatility is extremely good. Become something.

Incidentally, the lock mechanism 20 according to the above embodiment is described.
In, the numbers and positions of the through holes 21 and the insertion holes 22 are not limited to those described above, and may be set in any manner. For example, it may be provided so as to be able to be changed to three kinds of widths and to correspond to three kinds of side grooves S. Further, the lock mechanism 20 is not limited to the above-described configuration, and may be appropriately changed, for example, by a pin. In the above embodiment,
The insertion hole 31 of the engagement portion 30 is formed by welding a rod-shaped member bent in a substantially U shape, but the invention is not necessarily limited to this. The insertion hole may be formed in a hook shape, and may be appropriately changed. Further, in the above embodiment, the engagement portion 30
Are provided in the direction in which the insertion angle of the bar B is different by 90 degrees (X, Y). However, the present invention is not limited to this.
The angle and the number of sets may be appropriately changed such as providing a set.
Furthermore, the shape of the base member 10 is not limited to a rectangle, but may be any shape as long as it can be fitted.

[0022]

As described above, according to the gutter reversing device of the present invention, the base member fitted to the open end of the gutter is provided with the engagement portion with which the bar is engaged. Since the base member is fitted into the side groove, the bar is engaged with the engaging portion, and the side groove can be rolled by leverage of the bar, so that the side groove can be rolled very easily. . Especially, in the case of the conventional manual work, since the gutter is heavy, the work becomes a heavy work, and the work is extremely complicated.In addition, when the work is heavy, several people are required. However, since it can be rolled by leverage of the bar, even one person can easily work, and the working efficiency can be greatly improved. Also, since the reversing device has an extremely simple structure in which only an engaging portion is provided on the base member, it is easy to carry, such as easy to carry, and can be easily used anywhere regardless of the surrounding work environment, such as a crane. The versatility can be improved as compared with. Furthermore, since the lock mechanism is released, the width is adjusted by expanding and contracting the base member, and then locked again by the lock mechanism, it can be used for a side groove of another size. In the side gutters, it is not necessary to separately manufacture a device corresponding to each side gutter, and the gutters can be shared.

Also, the base member may include a first base member,
When the first base member is provided with a second base member slidably provided in the width direction of the end opening of the side groove with respect to the first base member, the base member can be configured by two members, so that the structure is extremely reduced. Can be easy. Furthermore, the first
A base member, a contact member facing the inner surface of one side wall of the side groove and capable of contacting the one side wall, and a pair of rail members provided at upper and lower ends of the contact member and extending to the other side wall side; A second base member, a contact member facing the inner surface of the other side wall of the side groove and capable of contacting the other side wall, and a second member connected to the upper and lower ends of the contact member. When the first base member includes a pair of slide members that slide on the rail member, the entire base member can be formed in a frame shape, so that the base member can be easily held by hand and reduced in weight. Can be easily handled. Further, the lock mechanism is associated with a plurality of through holes provided in the first base member at intervals along the sliding direction, and an insertion hole provided in the second base member and corresponding to the through hole. In the case of using a bolt inserted through the through hole and the insertion hole, and a nut screwed into the bolt, there is an effect that the device can be configured with a simple mechanism and the strength can be reliably ensured.

In the case where the engaging portion has an insertion hole through which the bar is inserted in a direction substantially perpendicular to the longitudinal axis of the side groove, the engagement can be achieved simply by inserting the bar into the insertion hole. Therefore, the structure can be further simplified. When a pair of engaging portions are provided so as to face each other so that the bar is inserted, the bar is engaged at two places, so that the pressing of the bar is ensured, and Lever action can be reliably performed. Further, when a plurality of sets of the engaging portions are provided in a plurality of directions in which the insertion angles of the bars are different from each other, the angles of the bars can be set at positions where the rolling operation can be easily performed by replacing the bars. Also in this respect, work can be performed easily, and work efficiency can be improved. Further, in the case where the contact member of the base member is provided with rubber elastically contacting the inner surface of the side groove, the rubber elastically contacts the side wall, so that the impact force or the like is buffered, so that the base member damages the side groove. Such damage can be prevented. In addition, the rubber can be securely fitted to the side wall by the frictional force of the rubber, and can be hardly moved with respect to the side wall.
It is possible to prevent a situation in which the user easily leaves the vehicle, and it is possible to reliably perform the rolling operation.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a side groove reversing device according to an embodiment of the present invention together with its operation.

FIG. 2 is an exploded plan view showing the side groove reversing device according to the embodiment of the present invention.

FIG. 3 is an exploded side view showing the side groove reversing device according to the embodiment of the present invention.

4A and 4B are diagrams showing a side groove reversing device according to an embodiment of the present invention, wherein FIG. 4A is a plan view showing a state where the groove is fitted to the side groove at a reduced position, and FIG. It is a sectional view taken on line a.

FIG. 5 is a plan view showing the side groove reversing device according to the embodiment of the present invention in a state where the side groove reversing device is fitted to the side groove at the extended position.

FIG. 6 is a view showing an example of a step of inverting the side grooves using the side groove inverting device according to the embodiment of the present invention.

FIG. 7 is a process chart showing an example of a conventional method for inverting a side groove.

FIG. 8 is a diagram showing an example of laying a side groove with an end cut.

FIG. 9 is a view showing a step of rolling the side groove when cutting the end of the side groove.

[Explanation of symbols]

 K reversing device S side groove 1 bottom wall 2 side wall 3 end opening 4 upper opening 5 end D dimension between side walls 10 base member 10A first base member 10B second base member 11 contact member 12 rail member 13 angle member 13a One piece 13b Other piece 14 Reinforcement member 15 Contact member 16 Slide member 17 Reinforcement member 18 Rubber 20 Lock mechanism 21 Through hole 22 Insertion hole 23 Bolt 24 Nut P Pitch L Interval Sa Reduction position Sb Extension position 30 Engagement portion 31 Insertion hole B bar material X, Y A pair of engagement parts

Claims (8)

[Claims] 1. A side groove reversing device for rolling a side groove having a bottom wall and a pair of side walls erected on both sides of the bottom wall and having end opening portions at both ends, wherein the end of the side groove is provided. A base member fitted into the open portion, and a bar member protruding from the base member toward the outside of the end open portion of the side groove, and a rod material is engaged with the base member to roll the side groove together with the base member. And a lock mechanism that locks the base member at a required expansion / contraction position so that the base member can expand and contract in the width direction of the end opening of the side groove. Gutter reversing device. 2. The method according to claim 1, wherein the base member comprises: a first base member;
2. The side groove reversing device according to claim 1, further comprising a second base member provided to be slidable in a width direction of an end opening portion of the side groove with respect to the first base member. 3. A contact member which opposes the inner surface of one side wall of the side groove and which can contact the one side wall, and the other side wall which is provided at upper and lower ends of the contact member. A pair of rail members extending to the side, the second base member is a contact member that faces the inner surface of the other side wall of the side groove and can contact the other side wall; 3. The side groove reversing device according to claim 2, further comprising a pair of slide members which are connected to the upper and lower ends and extend to one side wall side to slide the rail member of the first base member. 4. A through hole provided in the first base member at a plurality of intervals along a sliding direction, an insertion hole provided in the second base member and corresponding to the through hole, and The side groove reversing device according to claim 2 or 3, wherein the bolt is inserted into the corresponding through hole and the insertion hole, and a nut is screwed into the bolt. 5. The engaging portion has an insertion hole through which the bar is inserted in a direction substantially perpendicular to a longitudinal axis of the side groove. Or the side groove reversing device according to 4. 6. The side groove reversing device according to claim 5, wherein a pair of said engaging portions are provided so as to face each other so as to insert said bar. 7. The side groove reversing device according to claim 6, wherein a plurality of pairs of the engagement portions are provided in directions in which the rods have different insertion angles. 8. The apparatus according to claim 1, wherein said base member is provided with rubber elastically contacting the inner surface of the side groove.
The reversing device for a gutter according to 4, 5, 6, or 7.