JP7106442B2 - U-shaped member installation device - Google Patents

Description

The present invention relates to a U-shaped member installation device for installing a U-shaped member.

In Patent Document 1, a mounting member for a backhoe is provided on the upper part, a pedestal having long legs around the circumference, a moving table attached to the upper part of the pedestal so as to be movable back and forth, and a first drive for moving the moving table back and forth. means, a front-side moving member and a rear-side moving member attached to the carriage so as to be movable in the left-right direction, second and third drive means for moving these in the left-right direction, respectively, the front-side moving member and the rear-side moving member a telescopic arm which is pivotally attached to each of the arms, has a locking claw at its tip for locking the centrally arranged U-shaped member from the periphery, and is rotatable in the locking direction of the U-shaped member. A detent device for a U-shaped member is disclosed.

JP-A-8-120755

The stationary device disclosed in Patent Document 1 is used by being attached to a backhoe. must be operated carefully. As a result, there is a problem that the workability of installing the U-shaped member is poor.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a U-shaped member installation device capable of installing a U-shaped member with good workability.

A U-shaped member installation device according to the present invention installs a U-shaped member continuously to an existing U-shaped member, and includes a main body portion guided over the existing U-shaped member; A traveling mechanism that causes the main body to travel in the installation direction along the existing U-shaped member, and a U-shaped member that has not been installed yet is gripped and lowered, and the existing U-shaped member that is installed at the frontmost point in the installation direction. an installation mechanism installed adjacent to the main body, the installation mechanism comprising: a fixed frame fixed on the main body; a first movable frame supported by the fixed frame movably in an installation direction; a second movable frame supported by the first movable frame so as to be able to move up and down; and a gripping portion supported by the second movable frame and gripping an uninstalled U-shaped member .

According to the present invention, the U-shaped member can be installed with good workability.

1 is a schematic diagram showing the configuration of a U-shaped member installation system according to an embodiment of the present invention; FIG. It is a perspective view which shows the structure of a U-shaped member installation apparatus. FIG. 11 is a rear view showing a portion to be guided that is guided by an existing U-shaped member; It is a side view which shows an installation mechanism. 4 is a front view showing a first movable frame, a second movable frame, and a left/right moving part of the installation mechanism; FIG. FIG. 11 is a top view showing the second movable frame and the left/right moving part of the installation mechanism; It is a schematic diagram showing a height adjustment mechanism and the like. FIG. 4 is a side view showing a state before the body portion travels; FIG. 4 is a side view showing a state after the main body has traveled; FIG. 11 is a side view showing a state in which the installation mechanism grips an uninstalled U-shaped member that has been transferred to a predetermined position; FIG. 10 is a side view showing a state in which the installation mechanism has moved the uninstalled U-shaped member to a desired horizontal position; FIG. 11 is a side view showing a state in which an installation mechanism lowers and installs an uninstalled U-shaped member; It is a side view which shows the modification of a U-shaped member installation apparatus. It is a schematic front view showing an installation mechanism of a modification.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this specification, the same reference numerals are given to the same members throughout.

[U-shaped member installation system]
First, referring to FIG. 1, a U-shaped member installation system 100 according to an embodiment of the present invention will be described. FIG. 1 is a schematic diagram showing the configuration of a U-shaped member installation system 100. As shown in FIG.

When forming a trench in the ground 1 , first, a backhoe (not shown) is used to excavate the ground 1 in a trench shape to form a depression 2 . Next, crushed stone 3 is laid on the bottom surface of the depression 2 . Next, using the U-shaped member installation system 100, a base material 4 (for example, a mixture of sand and cement, etc.) that serves as a base for installing the U-shaped member 5 is laid on the crushed stone 3, and a plurality of U-shaped members are installed. The glyphs 5 are mounted in series on the base material 4 . The U-shaped member 5 is a precast concrete weight having a U-shaped cross section and is installed on the base material 4 using the U-shaped member installation system 100 . After that, the adjacent U-shaped members 5 are continuously installed, and the space between the adjacent U-shaped members 5 is filled with mortar, and the space between the side surface of the recess 2 and the U-shaped member 5 is filled with soil. Return (not shown). The above procedure completes the groove. In addition, the U-shaped member 5 has a pair of side wall portions 51 and 52 and a bottom portion 53 connecting the lower end portions of the pair of side wall portions 51 and 52 .

In this embodiment, the longitudinal direction of the existing U-shaped member 5 installed on the base material 4 is the front-rear direction (that is, the direction along the X-axis in the figure), and the width direction is the left-right direction (that is, the direction along the X-axis in the figure). the direction along the Y-axis in the drawing), and the height direction is the vertical direction (that is, the direction along the Z-axis in the drawing).

In this embodiment, the installation direction for installing the plurality of U-shaped members 5 is the front-rear direction. That is, the plurality of U-shaped members 5 are installed in a straight line extending in the front-rear direction, but are not limited to this, and may be installed in a polygonal line shape or a curved line shape, for example. Thus, the installation direction in which the U-shaped member 5 is installed is not necessarily linear.

As shown in FIG. 1, the U-shaped member installation system 100 includes a U-shaped member installation device 6 that installs a U-shaped member 5 in a groove, and a U-shaped member installation device 6 that installs an uninstalled U-shaped member 5 into the U-shaped member installation device 6 . and a total station 8 as an optical survey instrument or the like for measuring the position of a later-described gripping portion 644c (see FIG. 2) of the U-shaped member installation device 6. Details of the U-shaped member installation device 6 will be described later.

The vehicle 7 transports the mounting portion 71 on which the plurality of U-shaped members 5 are mounted and the uninstalled U-shaped member 5 mounted on the mounting portion 71 to the U-shaped member installation device 6 . and a crane portion 72 . In this embodiment, the transport device is configured by the vehicle 7, but is not limited to this, and may be configured by, for example, a backhoe or the like.

The total station 8 irradiates a light wave toward a prism or the like (not shown) attached to the grip portion 644c or the U-shaped member 5 that is not gripped by the grip portion 644c, and receives the light wave reflected by the prism or the like. Thus, the horizontal position of the uninstalled U-shaped member 5 gripped by the gripping portion 644c can be measured.

[U-shaped member installation device]
Next, the U-shaped member installation device 6 will be described with reference to FIGS. 2 and 3. FIG. FIG. 2 is a perspective view showing the configuration of the U-shaped member installation device 6. As shown in FIG. FIG. 3 is a rear view showing the guided portion 613 guided by the existing U-shaped member 5. As shown in FIG.

As shown in FIG. 2 , the U-shaped member installation device 6 is a device that installs the U-shaped member 5 continuously to the existing U-shaped member 5 . The U-shaped member installation device 6 includes a main body portion 61 guided over the existing U-shaped member 5, and a main body portion 61 that moves along the existing U-shaped member 5 in the installation direction (that is, in the running direction). A traveling mechanism 62 for traveling, a transfer mechanism 63 for transferring the uninstalled U-shaped member 5 placed on the main body portion 61 along the main body portion 61, and an uninstalled U-shaped member 5 transferred to a predetermined position by the transfer mechanism 63. and an installation mechanism 64 that grasps and lowers the U-shaped member 5 of the above and installs it adjacent to the existing U-shaped member 5 that is installed in the frontmost position in the installation direction.

As a result, the main body 61 is caused to travel in the installation direction along the existing U-shaped member 5 by the travel mechanism 62, so the existing U-shaped member 5 can be used to make the main body 61 travel in the installation direction. can be done. Further, the uninstalled U-shaped member 5 transferred to a predetermined position by the transfer mechanism 63 is gripped by the installation mechanism 64 and lowered, and is attached to the existing U-shaped member 5 installed at the furthest front in the installation direction. Since it is installed adjacently, the U-shaped member 5 can be installed continuously with the existing U-shaped member 5 with good workability. The longer the longitudinal length of the existing U-shaped member 5 to which the main body 61 is guided, the more stable the traveling by the traveling mechanism 62 is. Therefore, it is preferable to use a plurality of existing U-shaped members 5 .

The U-shaped member installation device 6 further includes a base material laying mechanism 65 as a work device for laying the base material 4 that serves as a base on which the U-shaped member 5 is installed.

As described above, the U-shaped member installation device 6 includes an installation mechanism 64 for installing the U-shaped member 5 and a base material laying mechanism 65 for laying the base material 4 serving as a base on which the U-shaped member 5 is installed. Thus, all of the steps of installing the U-shaped member 5 and laying the base material 4 prior to installing the U-shaped member 5 are performed by a single U-shaped member installation device 6 . Thereby, the workability of the work of installing the U-shaped member 5 including the installation process of the U-shaped member 5 and the laying process of the base material 4 can be improved. Moreover, the accuracy of the installation position of the U-shaped member 5 can be improved.

The body portion 61 has a pair of base frames 611 extending in the running direction and provided in parallel, and two connection frames 612 (612a, 612b) connecting the pair of base frames 611 .

The pair of base frames 611 are provided with a space larger than the width of the U-shaped member 5 (that is, the dimension from one end of the U-shaped member 5 to the other end of the U-shaped member 5) in the left-right direction. be done. As a result, the pair of base frames 611 protrude from the pair of side walls 51 and 52 of the existing U-shaped member 5 while the main body 61 is guided over the existing U-shaped member 5 . ing. The two connection frames 612 (612a, 612b) are provided on the front end side of the body portion 61 in the running direction.

A running direction rear portion of the body portion 61 is supported by the existing U-shaped member 5 . Specifically, the rear portion of the body portion 61 in the traveling direction is supported by the existing U-shaped member 5 via a guided portion 613 which is rotatably abutted and guided by the existing U-shaped member 5 . . As a result, the body portion 61 is guided by the guided portion 613 to the existing U-shaped member 5 , so that the body portion 61 runs along the existing U-shaped member 5 by the running mechanism 62 .

As shown in FIGS. 2 and 3, the guided portion 613 includes a rod 613a rotatably supported by a pair of base frames 611 and a pair of side wall portions 51 of the existing U-shaped member 5 provided on the rod 613a. , 52;

The rod 613a extends in the left-right direction, and both ends thereof are supported by the pair of base frames 611. As shown in FIG. Also, the rod 613a is supported by a pair of side walls 51 and 52 of the existing U-shaped member 5 via a pair of cylindrical rollers 613b. As a result, the body portion 61 is supported by the pair of side wall portions 51 and 52 of the existing U-shaped member 5 via the rod 613a and the cylindrical roller 613b of the guided portion 613. As shown in FIG.

A pair of flanges 613c that can contact the inner surfaces of the pair of side walls 51 and 52 of the existing U-shaped member 5 are provided on the opposing side surfaces of the pair of cylindrical rollers 613b. A pair of flanges 613 c are sandwiched between a pair of side wall portions 51 and 52 of the existing U-shaped member 5 . As a result, the lateral movement of the flange 613c with respect to the existing U-shaped member 5 is restricted, so that the cylindrical roller 613b falls off from the upper ends of the pair of side walls 51 and 52 of the existing U-shaped member 5. It is rotatably guided without

In this embodiment, the guided portion 613 does not have a motor for rotating the rod 613a, but is not limited to this, and may have a motor for rotating the rod 613a, for example. In this case, the motor is provided on either one of the pair of base frames 611 .

In this embodiment, the guided portion 613 has a pair of cylindrical rollers 613b that are spaced apart in the left-right direction, but is not limited to this. There may be one cylindrical roller extending from one end of the U-shaped member 5 to the other end of the U-shaped member 5 .

Furthermore, in this embodiment, the pair of flanges 613c abut against the inner surfaces of the pair of side wall portions 51 and 52 of the existing U-shaped member 5 and are sandwiched between the pair of side wall portions 51 and 52 of the U-shaped member 5. However, it is not limited to this. , 52 may be arranged. In this case, the pair of flanges 613c are provided on opposite sides of the pair of cylindrical rollers 613b.

From the viewpoint of supporting the front portion of the body portion 61 in the running direction, the running mechanism 62 is provided at the front portion of the body portion 61 in the running direction. In the present embodiment, the traveling mechanism 62 is provided directly on the front portion of the body portion 61 in the traveling direction, but is not limited to this. It may be provided in the front portion.

As shown in FIG. 2, the travel mechanism 62 includes a pair of first support portions 621 extending downward from a connection frame 612a arranged forward in the travel direction, and a pair of first support portions 621 on the tip side thereof. It has a wheel 622 that is rotatably supported on (lower end side) and a motor 623 that is provided on one of the pair of first support portions 621 and drives the wheel 622 to rotate.

The wheels 622 support the front portion of the body portion 61 in the traveling direction. As a result, the traveling direction front portion and the traveling direction rear portion of the main body portion 61 are supported by the wheels 622 of the traveling mechanism 62 and the existing U-shaped member 5, respectively. Therefore, the body portion 61 can be supported and traveled in a well-balanced manner, and the U-shaped member 5 can be installed.

The wheels 622 are provided in front of the hopper 66 of the base material laying mechanism 65 in the running direction. This ensures that the wheels 622 are prevented from rolling over the base material 4 as they roll over the crushed stone 3 before the base material 4 is discharged from the hopper 66 . In addition, since the wheels 622 are arranged between the pair of base frames 611, the size of the U-shaped member installation device 6 in the left-right direction can be made smaller than when the wheels protrude outside the pair of base frames 611. can be suppressed.

In this embodiment, the wheels 622 are arranged between the pair of base frames 611, but are not limited to this, and may be arranged outside the pair of base frames 611, for example. In this case, it is possible to prevent the U-shaped member installation device 6 from overturning in the horizontal direction due to vibration or the like.

The transfer mechanism 63 is provided at the rear portion of the body portion 61 in the traveling direction, and transfers the uninstalled U-shaped member 5 conveyed by the crane portion 72 of the vehicle 7 from the rear side in the traveling direction to the front side in the traveling direction. be. The transfer mechanism 63 is positioned forward in the running direction of the guided portion 613 . In other words, the guided portion 613 is located behind the transfer mechanism 63 in the traveling direction. As a result, it is possible to prevent the guided portion 613 from interfering with the transfer of the uninstalled U-shaped member 5 by the transfer mechanism 63 .

The transfer mechanism 63 includes a plurality of rods 631 rotatably supported by a pair of base frames 611, rubber cylindrical rollers 632 provided on each rod 631, and a drive mechanism incorporated in the base frame 611 to rotate each rod 631. a motor (not shown);

The plurality of rods 631 are arranged at predetermined intervals in the front-rear direction. Also, the plurality of rods 631 extend in the left-right direction like the rods 613 a , and both ends thereof are supported by the pair of base frames 611 . An uninstalled U-shaped member 5 is placed over a plurality of cylindrical rollers 632 .

In this embodiment, the cylindrical roller 632 is formed by one having a large axial dimension. However, the cylindrical roller 632 is not limited to the form described above, and may be formed of a plurality of rollers having small axial dimensions, for example. The cylindrical roller 632 is arranged between the pair of cylindrical rollers 613b in the left-right direction. This reliably prevents the cylindrical roller 632 from coming into contact with the pair of side walls 51 and 52 of the existing U-shaped member 5 .

The plurality of rods 631 are connected to the existing U-shaped member 5 in a state where the traveling direction front portion of the main body portion 61 and the traveling direction rear portion of the main body portion 61 are respectively supported by the traveling mechanism 62 and the existing U-shaped member 5 . do not abut on the pair of side wall portions 51 and 52 of . This prevents the plurality of rods 631 from coming into contact with the pair of side walls 51 and 52 of the existing U-shaped member 5 and wearing them. Therefore, the rotational drive of the plurality of rods 631 is not hindered by the existing U-shaped member 5, and the energy of the motor for rotationally driving each rod 631 can be saved.

In this way, the plurality of rods 631 are rotated by the rotational driving of the motor, and the uninstalled U-shaped member 5 placed on the plurality of rods 631 is moved from the rear side in the running direction to the front side in the running direction via the cylindrical rollers 632 . can be transferred to the side.

A pair of base frames 611 is provided with a movement restricting portion 614 that restricts the lateral movement of the U-shaped member 5 that is not installed on the body portion 61 . Therefore, the U-shaped member 5 that is not installed is transferred to a predetermined position (the frontmost side of the transfer mechanism 63 in the running direction) by the transfer mechanism 63 without being greatly displaced in the lateral direction by the movement restricting portion 614 . be.

An opening portion 615 is formed in the body portion 61 and located forward of the transfer mechanism 63 in the traveling direction. The opening 615 is formed by being surrounded by a pair of base frames 611, a rod 631 arranged furthest forward in the running direction, and a connection frame 612b arranged rearward in the running direction. An uninstalled U-shaped member 5 can pass through the opening 615 along the vertical direction. As a result, the uninstalled U-shaped member 5 is gripped by the installation mechanism 64, passes through the opening 615, descends, and is adjacent to the existing U-shaped member 5 installed furthest forward in the installation direction. be installed.

Next, the installation mechanism 64 will be described with reference to FIGS. 2 and 4 to 6. FIG. 4 is a side view showing the installation mechanism 64. FIG. FIG. 5 is a front view showing the first movable frame 642, the second movable frame 643, and the left/right moving portion 644 of the installation mechanism 64. FIG. 6 is a top view showing the second movable frame 643 and the left/right moving part 644 of the installation mechanism 64. FIG.

As shown in FIG. 2, the installation mechanism 64 is provided on the main body 61 over the opening 615 and the forward portion of the transfer mechanism 63 in the installation direction. That is, the moving mechanism 63 is provided behind the installation mechanism 64 of the main body 61 in the installation direction. In this case, a part of the transfer mechanism 63 forward in the installation direction and a part of the installation direction rearward of the installation mechanism 64 partially overlap along the installation direction. The installation mechanism 64 includes a fixed frame 641 fixed on the main body 61, a pair of left and right first movable frames 642 supported by the fixed frame 641 so as to be movable in the installation direction, and a pair of left and right movable frames 642 which are vertically movable. It has a second movable frame 643 supported by the first movable frame 642 and a left/right moving part 644 supported by the second movable frame 643 so as to be movable in the left/right direction.

The fixed frame 641 is provided so that a part thereof overlaps the transfer mechanism 63 along the installation direction. The fixed frame 641 includes a pair of lower fixed frames 641a fixed on the pair of base frames 611 so as to extend in the installation direction, and a pair of lower fixed frames 641a provided above the pair of lower fixed frames 641a to extend in the installation direction. and a connecting frame 641c connecting the pair of lower fixing frames 641a and the pair of upper fixing frames 641b.

As shown in FIG. 4, a first rectilinear guide groove 641d extending in the installation direction is formed on the upper surface of the lower fixed frame 641a facing the upper fixed frame 641b. A first feed screw 641e extending in the installation direction is rotatably supported inside the lower fixed frame 641a. One end of the first feed screw 641e is connected to the shaft of the first motor 641f fixed to one end of the lower fixed frame 641a. Thereby, the first motor 641f can rotationally drive the first feed screw 641e.

Similarly, a first rectilinear guide groove 641d extending in the installation direction is formed on the lower surface of the upper fixed frame 641b facing the lower fixed frame 641a. A first feed screw 641e extending in the installation direction is rotatably supported inside the upper fixed frame 641b. One end of the first feed screw 641e is connected to the shaft of the first motor 641f fixed to one end of the upper fixed frame 641b. As a result, the first feed screw 641e is rotationally driven by driving the first motor 641f.

The connecting frame 641c extends vertically, and one end (lower end) and the other end (upper end) thereof are connected to the ends of the lower fixed frame 641a and the upper fixed frame 641b, respectively. be.

A pair of left and right first movable frames 642 are connected to a first nut 642a that extends in the installation direction and is screwed onto a first feed screw 641e, and to the first nut 642a that extends in the installation direction. It has a first slider 642b guided by the first rectilinear guide groove 641d, and a pair of vertical frames 642c whose ends are connected to the ends in the installation direction of the first slider 642b and which extend in the vertical direction.

When the first feed screw 641e is rotationally driven by the drive of the first motor 641f, the first nut 642a connected to the first slider 642b guided by the first rectilinear guide groove 641d is installed integrally with the vertical frame 642c. move along a direction. As a result, the pair of left and right first movable frames 642 moves in the installation direction with respect to the fixed frame 641 .

In this embodiment, the combination of the first feed screw 641e, the first nut 642a, and the first motor 641f allows the first movable frame 642 to move in the installation direction with respect to the fixed frame 641. , hydraulic or electric jacks may be used. In this case, one end and the other end of the hydraulic jack or electric jack are connected to the first movable frame 642 and the fixed frame 641, respectively, and the first movable frame 642 moves relative to the fixed frame 641 by extending and contracting the hydraulic jack or electric jack. Can be moved in the installation direction.

In this manner, the first movable frame 642 is supported by the fixed frame 641 so as to be movable in the installation direction. As a result, the U-shaped member 5 can be installed continuously to the existing U-shaped member 5 with high accuracy.

Therefore, the position in the installation direction of the uninstalled U-shaped member 5 supported by the pair of left and right first movable frames 642 via the second movable frame 643 and the left/right moving portion 644 is adjusted. That is, the installation direction position adjusting mechanism for adjusting the position in the installation direction of the gripped, uninstalled U-shaped member 5 includes the first rectilinear guide groove 641d of the fixed frame 641, the first feed screw 641e, and the first motor 641f. , a first nut 642a of the first movable frame 642, a first slider 642b and a vertical frame 642c.

As shown in FIG. 5, second rectilinear guide grooves 642d extending in the vertical direction are formed on the inner side surfaces of the left and right vertical frames 642c facing each other. A vertically extending second feed screw 642e is rotatably supported inside the vertical frame 642c. One end of the second feed screw 642e is connected to the shaft of a second motor 642f fixed to one end of the vertical frame 642c. As a result, the second feed screw 642e is rotationally driven by the drive of the second motor 642f.

As shown in FIGS. 2 and 5, the second movable frame 643 is connected to a second nut 643a that is screwed onto a second feed screw 642e, and is coupled to the second nut 643a and is guided by a second rectilinear guide groove 642d. It has a second slider 643b and a horizontal frame portion 643f including a pair of first horizontal frames 643c extending in the left-right direction and having ends connected to the second slider 643b.

When the second feed screw 642e is rotationally driven by the drive of the second motor 642f, the second nut 643a connected to the second slider 643b guided by the second rectilinear guide groove 642d is integrated with the horizontal frame portion 643f. Move vertically. As a result, the second movable frame 643 moves vertically with respect to the pair of left and right first movable frames 642 .

In this embodiment, the combination of the second feed screw 642e, the second nut 643a, and the second motor 642f enables the second movable frame 643 to move vertically with respect to the pair of left and right first movable frames 642. A combination of an electric winch and a wire rope may be used instead of the combination of In this case, one end and the other end of the wire rope are connected to the electric winch provided on the first movable frame 642 and the second movable frame 643, respectively, and the electric winch winds or unwinds the wire rope, whereby the second movable The frame 643 can move vertically with respect to the pair of left and right first movable frames 642 .

In this way, the second movable frame 643 is supported by the first movable frame 642 so as to be vertically movable. It is installed adjacent to the existing U-shaped member 5 which is installed at the most front in the installation direction, and as a result, the U-shaped member 5 can be installed continuously with the existing U-shaped member 5 with good workability. .

Therefore, the uninstalled U-shaped member 5 supported by the second movable frame 643 can be lowered via the left/right moving portion 644 . That is, the elevating mechanism for lowering the gripped, uninstalled U-shaped member 5 includes the second linear guide groove 642d of the vertical frame 642c, the second feed screw 642e, the second motor 642f, and the second moving frame 643. It is composed of two nuts 643a, a second slider 643b, and a horizontal frame portion 643f.

As shown in FIGS. 2 and 6, the horizontal frame portion 643f includes a pair of second horizontal frames 643d extending in the installation direction and connecting ends of the pair of first horizontal frames 643c, and a pair of second horizontal frames 643d extending in the left-right direction. and a pair of third horizontal frames 643e provided between the pair of first horizontal frames 643c. Third rectilinear guide grooves 643g as guide portions extending in the left-right direction are formed on the opposing surface sides of the pair of third horizontal frames 643e. A laterally extending third feed screw 643h is rotatably supported inside the third horizontal frame 643e. One end of the third feed screw 643h is connected to the shaft of a third motor 643i fixed to one end of the second horizontal frame 643d. As a result, the third feed screw 643h is rotationally driven by driving the third motor 643i.

As shown in FIGS. 2 and 6, the lateral moving portion 644 includes a third nut 644a screwed onto a third feed screw 643h, and a slider connected to the third nut 644a and guided by a third rectilinear guide groove 643g. and a gripping portion 644c that extends downward from the third slider 644b and grips the uninstalled U-shaped member 5 .

As shown in FIG. 2, an example of the gripping portion 644c includes a gripping portion main body 644d and a pair of gripping arms 644e provided on both left and right sides of the gripping portion main body 644d so as to be movable in the horizontal direction. The pair of gripping arms 644e brace against the pair of side walls 51 and 52 of the U-shaped member 5 by moving outward along the left-right direction. Thereby, the gripping portion 644c can grip the U-shaped member 5 . However, the grip portion 644c is not limited to this, and may be configured in other manners.

When the third feed screw 643h is driven to rotate by driving the third motor 643i, the third nut 644a connected to the third slider 644b guided by the third rectilinear guide groove 643g moves left and right integrally with the grip portion 644c. move along a direction. As a result, the left/right moving part 644 moves in the left/right direction with respect to the second movable frame 643 .

In the present embodiment, the combination of the third feed screw 643h, the third nut 644a, and the third motor 643f enables the horizontal movement portion 644 to move in the horizontal direction with respect to the second movable frame 643. Alternatively, a hydraulic or electric jack may be used. In this case, one end and the other end of the hydraulic jack or electric jack are connected to the left and right moving part 644 and the second movable frame 643, respectively, and the left and right moving part 644 moves to the second movable frame 643 by expanding and contracting the hydraulic jack or the electric jack. You can move left and right with respect to

In this way, the left/right moving portion 644 having the grip portion 644c is supported by the second movable frame 643 so as to be movable in the left/right direction. position can be adjusted, and as a result, the U-shaped member 5 can be installed continuously to the existing U-shaped member 5 with high accuracy.

Therefore, the position in the left-right direction of the U-shaped member 5 that has not been installed and is supported by the left-right moving portion 644 is adjusted. That is, the left-right position adjusting mechanism for adjusting the left-right position of the gripped U-shaped member 5 is composed of the third rectilinear guide groove 643g of the third horizontal frame 643e, the third feed screw 643h and the third motor. 643i, a third nut 644a, a third slider 644b, and a gripping portion 644c of the laterally moving portion 644. As shown in FIG.

Thus, the installation mechanism 64 includes an installation direction position adjustment mechanism that adjusts the position of the gripped uninstalled U-shaped member 5 in the installation direction, and an elevation mechanism that lowers the gripped uninstalled U-shaped member 5 . and a lateral position adjusting mechanism for adjusting the lateral position of the uninstalled U-shaped member 5 that is gripped.

Moreover, the installation direction position adjustment mechanism, the lifting mechanism, and the lateral direction position adjustment mechanism are not limited to the present embodiment, and for example, at least one of them is configured with a rack and a pinion that meshes with the rack. may In this case, the motor for rotating the pinion is provided coaxially with the pinion.

Next, the basic material laying mechanism 65 will be described with reference to FIGS. 2 and 7. FIG. FIG. 7 is a schematic diagram showing the height adjustment mechanism 69 and the like.

As shown in FIG. 2, the base material laying mechanism 65 is provided ahead of the installation mechanism 64 in the running direction. As a result, before the uninstalled U-shaped member 5 is installed adjacent to the existing U-shaped member 5 that has been installed furthest forward in the installation direction by the installation mechanism 64, the basic material 4 is installed by the basic material laying mechanism 65 in advance. can be laid on the crushed stone 3.

The basic material laying mechanism 65 includes a hopper 66 provided in the main body 61 for discharging the stored basic material 4, and a leveling unit 67 provided in the main body 61 for leveling the basic material 4 discharged from the hopper 66. , a rolling pressure unit 68 that rolls the base material 4 leveled by the leveling unit 67 provided in the main body 61 , and a height adjustment mechanism 69 that adjusts the height of the leveling unit 67 .

As a result, the base material 4 is spun out from the hopper 66 while the main body 61 travels from the travel mechanism 62 . Further, the base material 4 discharged from the hopper 66 is leveled by the leveling section 67 . Therefore, the workability of laying the base material 4 can be improved. Thereby, the laying of the base material 4 and the installation of the U-shaped member 5 can be performed integrally.

The hopper 66 spits out the basic material 4 stored inside while the main body 61 is running. The hopper 66 is provided in the body portion 61 so as to be positioned between the pair of connection frames 612a and 612b. Therefore, the hopper 66 is located behind the wheel 622 in the traveling direction. That is, the wheels 622 are provided at a position forward of the hopper 66 in the traveling direction. Thereby, the wheels 622 can run on the crushed stone 3 before the foundation material 4 is laid without running on the laid foundation material 4 .

The hopper 66 has a base material inlet 661 for charging the base material 4 at its upper end and a base material outlet 662 for discharging the base material 4 at its lower end. The base material discharge port 662 is formed so that its lateral dimension is larger than the lateral dimension of the bottom portion 53 of the U-shaped member 5 . As a result, the base material 4 can be spread over the entire area in the left-right direction where the bottom of the U-shaped member 5 is installed.

With the guided portion 613 guided by the existing U-shaped member 5 , the hopper 66 is arranged such that the lower end of the base material outlet 662 is higher than the bottom of the wheel 622 . As a result, in a state where the guided portion 613 is guided by the existing U-shaped member 5, contact between the basic material discharge port 662 and the crushed stone 3 can be avoided, and the crushed stone 3 is discharged from the basic material discharge port 662. The base material 4 can be reliably spread over the crushed stone 3.

The leveling unit 67 is provided behind the hopper 66 in the running direction. Therefore, the hopper 66 is arranged between the traveling mechanism 62 and the leveling section 67 along the traveling direction. The leveling unit 67 has a pair of support arms 671 that are rotatably supported by the pair of base frames 611 and a removal plate 672 that is provided at the tip (lower end) of the support arms 671 .

The pair of support arms 671 are provided such that their base ends (upper ends) are pivotally supported by the pair of base frames 611 . The unloading plate 672 has a lower edge extending in the left-right direction. With the guided portion 613 being guided by the existing U-shaped member 5 , the lower edge of the earth removal plate 672 is positioned lower than the lower end of the base material discharge port 662 . As a result, the earth removal plate 672 of the leveling unit 67 can reliably level the base material 4 discharged from the hopper 66 .

The rolling pressure portion 68 is provided behind the leveling portion 67 in the running direction. Thereby, the rolling unit 68 can roll the base material 4 leveled by the leveling unit 67 . The roller pressing portion 68 includes a pair of second support portions 681 extending downward from the pair of base frames 611 and rollers rotatably provided on the tip side (lower end side) of the pair of second support portions 681 . and a pressure roller 682 .

In a state in which the guided portion 613 is guided by the existing U-shaped member 5 , the bottom of the pressure roller 682 is positioned higher than the bottom of the wheel 622 and lower than the lower end of the basic material outlet 662 . placed in a low position. Thereby, the rolling unit 68 can roll and compact the base material 4 discharged from the hopper 66 and leveled by the leveling unit 67 .

In the present embodiment, the hopper 66, the smoothing section 67 and the rolling compaction section 68 are all provided directly on the body section 61, but are not limited to this. may be indirectly provided in the body portion 61 via a member of .

As shown in FIG. 7, the height adjustment mechanism 69 is composed of a fluid pressure cylinder. The fluid pressure cylinder includes a pair of cylinder tubes 691 respectively built in a pair of second support portions 681, a piston 692 supported by each cylinder tube 691 so as to be reciprocally slidable, and a second support connected to each piston 692. It has a piston rod 693 projecting forward in the running direction from the portion 681 and a connecting portion 694 connecting the tip portion of the piston rod 693 and the support arm 671 .

Since the connecting portion 694 extends in the left-right direction and connects the pair of support arms 671, the pair of support arms 671 can rotate integrally.

By expanding and contracting the fluid pressure cylinder, the support arm 671 rotates and the height of the earth removal plate 672 is adjusted.

With the guided portion 613 being guided by the existing U-shaped member 5, even if the height of the earth removal plate 672 is adjusted to the highest position, the lower edge of the earth removal plate 672 does not reach the base material. It is arranged at a position lower than the lower end of the discharge port 662 . On the other hand, in the state where the guided portion 613 is guided by the existing U-shaped member 5, even if the height of the earth removal plate 672 is adjusted to the lowest position, the lower edge of the earth removal plate 672 It is positioned higher than the bottom of the wheel 622 .

Thus, the height adjustment mechanism 69 can level the base material 4 discharged from the hopper 66 to a desired height by adjusting the height of the earth removal plate 672 within a predetermined range.

In this embodiment, the height adjustment mechanism 69 is configured with a cylinder tube 691, a piston 692, a piston rod 693, and a connecting portion 694, but is not limited to this. It may be configured by a motor for rotational driving.

Since the base material laying mechanism 65 and the U-shaped member installation mechanism 64 are arranged continuously through the main body 61, the running mechanism 62 runs to lay the base material 4 and install the U-shaped member 5. is performed continuously.

[Step of laying foundation material and step of transferring uninstalled U-shaped member]
Next, referring to FIGS. 8 and 9, the step of laying the base material 4 by the base material laying mechanism 65 and the step of transferring the uninstalled U-shaped member 5 by the transfer mechanism 63 will be described. FIG. 8 is a side view showing a state before the body portion 61 travels. FIG. 9 is a side view showing a state after the body portion 61 has traveled.

In the step of laying the base material 4 , the main body 61 is moved forward in the running direction by the running mechanism 62 by a predetermined distance (the longitudinal dimension of the U-shaped member 5 ). That is, the hopper 66 dumps the stored basic material 4 onto the crushed stone 3 while the main body 61 travels from the state shown in FIG. 8 to the state shown in FIG. 9 by the travel mechanism 62 .

At that time, the dumping plate 672 whose height is adjusted by the height adjusting mechanism 69 levels the base material 4 discharged from the hopper 66 to a desired height, and the rolling pressure roller 682 of the rolling pressure section 68 rolls and compacts the base material 4 leveled by the leveling unit 67 .

As described above, the step of laying the base material 4, that is, the step of spreading the base material 4 on the crushed stone 3, leveling it, and rolling it, is not performed by a worker, and the main body 61 is moved by the traveling mechanism 62 to a predetermined level. Since it is performed by the basic material laying mechanism 65 while traveling the distance of , the work of laying the basic material 4 can be automated.

In the step of transferring the uninstalled U-shaped member 5, while the body portion 61 is traveling forward by a predetermined distance in the traveling direction by the traveling mechanism 62, the transferring mechanism 63 is operated by the arrow shown in FIG. , the uninstalled U-shaped member 5 placed on the plurality of rods 631 is transferred along the body portion 61 to a predetermined position.

As described above, the step of transferring the uninstalled U-shaped member 5 is performed at the same time as the step of laying the base material 4, so that the overall working time can be shortened.

In this embodiment, the step of transferring the uninstalled U-shaped member 5 is performed at the same time as the step of laying the base material 4, but the present invention is not limited to this. or before the step of laying the base material 4 is performed.

[Step of installing an uninstalled U-shaped member]
Next, referring to FIGS. 10 to 12, the process of installing the U-shaped member 5 to which the installation mechanism 64 has not yet been installed will be described. FIG. 10 is a side view showing a state in which the installation mechanism 64 grips the uninstalled U-shaped member 5 transferred to a predetermined position. FIG. 11 is a side view showing a state in which the installation mechanism 64 has moved the uninstalled U-shaped member 5 to a desired horizontal position. FIG. 12 is a side view showing a state in which the installation mechanism 64 lowers and installs the uninstalled U-shaped member 5 .

After the step of laying the base material 4 and the step of transferring the uninstalled U-shaped member 5, the installation mechanism 64 removes the uninstalled U-shaped member 5, as shown in FIGS. Carry out the installation process. In other words, the installation mechanism 64 is stopped without the body portion 61 running when performing the process of installing the U-shaped member 5 that has not yet been installed. At that time, since the opening 615 does not overlap the existing U-shaped member 5 along the installation direction, the uninstalled U-shaped member 5 is gripped by the installation mechanism 64 and passes through the opening 615. and descends, and is installed adjacent to the existing U-shaped member 5 that is installed furthest forward in the installation direction. A specific description will be given below.

First, in the step of installing the U-shaped member 5 that has not yet been installed, as shown in FIG. By stretching against the side wall portions 51 and 52 of the mounting mechanism 64, the gripping portion 644c of the installation mechanism 64 is transferred to a predetermined position (the frontmost side of the transfer mechanism 63 in the running direction) by the transfer mechanism 63. The member 5 is gripped. Then, the total station 8 (see FIG. 1) measures the horizontal position of the uninstalled U-shaped member 5 transferred to the predetermined position.

Next, as shown in FIG. 11, the installation mechanism 64 moves the first movable frame 642 relative to the fixed frame 641 in the installation direction based on the horizontal position of the uninstalled U-shaped member 5 measured by the total station 8. , and by moving the left-right moving portion 644 in the left-right direction with respect to the second movable frame 643, the uninstalled U-shaped member 5 gripped by the gripping portion 644c is moved to a desired horizontal position (to be installed). position).

Next, as shown in FIG. 12, the installation mechanism 64 lowers the second movable frame 643 with respect to the first movable frame 642, thereby moving the U-shaped member 5 to a predetermined horizontal position. It descends through the opening 615 and is installed adjacent to the existing U-shaped member 5 installed furthest forward in the installation direction.

After that, after the grip on the U-shaped member 5 is released, the second movable frame 643 is lifted with respect to the first movable frame 642 and the first movable frame 642 is moved rearward in the installation direction with respect to the fixed frame 641 . As a result, the gripping portion 644c returns to its original position and can grip the next uninstalled U-shaped member 5 transferred to the predetermined position by the transfer mechanism 63. FIG.

As described above, the step of installing the uninstalled U-shaped member 5 is performed by the installation mechanism 64, so that the U-shaped member 5 can be installed with high accuracy, and the work of installing the U-shaped member 5 is performed. can improve sexuality.

The steps of laying the base material 4, transferring the uninstalled U-shaped member 5, and installing the transferred uninstalled U-shaped member 5 are repeated by the U-shaped member installation device 6. By doing so, the U-shaped member 5 can be accurately installed continuously to the existing U-shaped member 5 while laying the base material 4 .

Next, the effects of this embodiment will be described.

As described above, the U-shaped member installation device 6 according to the present embodiment installs the U-shaped member 5 continuously to the existing U-shaped member 5. A main body portion 61 guided across the main body portion 61, a traveling mechanism 62 for making the main body portion 61 travel along the existing U-shaped member 5 in the installation direction, and a non-installed U-shaped member 5 are grasped and lowered to be installed. and an installation mechanism 64 for installation adjacent to the existing U-shaped member 5 installed in the forwardmost position in the direction.

According to this, since the body portion 61 runs in the installation direction along the existing U-shaped member 5 by the running mechanism 62, the body portion 61 runs in the installation direction using the existing U-shaped member 5. can be made Further, the uninstalled U-shaped member 5 is gripped by the installation mechanism 64 and lowered, and is installed adjacent to the existing U-shaped member 5 installed furthest forward in the installation direction. The U-shaped member 5 can be installed continuously to the shaped member 5 with good workability.

In addition, in this embodiment, the installation mechanism 64 includes a lateral position adjusting mechanism that adjusts the lateral position of the gripped, uninstalled U-shaped member 5 .

According to this, the left-right position of the uninstalled U-shaped member 5 that has been gripped is adjusted by the left-right position adjustment mechanism, so that the U-shaped member 5 can be moved continuously from the existing U-shaped member 5 . It can be installed with high accuracy.

In addition, in this embodiment, the installation mechanism 64 includes an installation direction position adjustment mechanism that adjusts the position of the gripped, uninstalled U-shaped member 5 in the installation direction.

According to this, the position of the gripped U-shaped member 5 in the installation direction is adjusted by the installation direction position adjustment mechanism, so that the U-shaped member 5 can be installed continuously with the existing U-shaped member 5 . It can be installed more accurately. In addition, the U-shaped members 5 can be installed consecutively with high accuracy by ensuring a predetermined interval for filling mortar between the adjacent U-shaped members 5 .

In addition, in this embodiment, the installation mechanism 64 includes a fixed frame 641 fixed on the main body 61, a first movable frame 642 supported by the fixed frame 641 so as to be movable in the installation direction, and a movable frame 642 which can move up and down. , a second movable frame 643 supported by the first movable frame 642, and a grasping portion 644c supported by the second movable frame 643 and grasping the uninstalled U-shaped member 5. As shown in FIG.

According to this, the first movable frame 642 is supported by the fixed frame 641 so as to be movable in the installation direction. As a result, the U-shaped member 5 can be installed continuously to the existing U-shaped member 5 with high accuracy. In addition, the second movable frame 643, which supports the gripping portion 644c that grips the U-shaped member 5 that has not yet been installed, is supported by the first movable frame 642 so that it can move up and down in the vertical direction. The uninstalled U-shaped member 5 descends by the second movable frame 643 and is installed adjacent to the existing U-shaped member 5 installed furthest forward in the installation direction. The U-shaped member 5 can be installed continuously to the shaped member 5 with good workability.

In this embodiment, the installation mechanism 64 is guided by the third rectilinear guide groove 643g which extends in the left-right direction and is provided in the second movable frame 643, and is movably guided in the lateral direction by the third rectilinear guide groove 643g. and a third slider 644b coupled to the grip portion 644c.

According to this, the third slider 644b to which the gripping portion 644c is connected is guided by the third rectilinear guide groove 643g so as to be movable in the left-right direction. can be adjusted, and the U-shaped member 5 can be installed continuously to the existing U-shaped member 5 with higher accuracy.

In the present embodiment, a transfer mechanism 63 is provided behind the installation mechanism 64 of the main body 61 in the installation direction, and transfers the uninstalled U-shaped member 5 placed on the main body 61 along the main body 61 . The installation mechanism 64 grips and lowers the uninstalled U-shaped member 5 that has been transferred to a predetermined position by the transfer mechanism 63, and the existing U-shaped member that has been installed furthest forward in the installation direction. 5.

According to this, the uninstalled U-shaped member 5 transferred to the predetermined position by the transfer mechanism 63 is gripped by the installation mechanism 64 and lowered, and the existing U-shaped member 5 installed furthest forward in the installation direction is removed. Since it is installed adjacent to the member 5, the U-shaped member 5 can be installed continuously with the existing U-shaped member 5 with better workability.

Further, in this embodiment, the body portion 61 is provided with a guided portion 613 that contacts and is guided by the existing U-shaped member 5 so as to be located on the rear end side of the installation mechanism 64 in the traveling direction.

According to this, since the guided portion 613 that is guided in contact with the existing U-shaped member 5 is located on the rear end side in the traveling direction from the installation mechanism 64, the installation mechanism 64 does not move the U-shaped member 5. Installation can be avoided from being hindered by the guided portion 613 .

(Modified example of U-shaped member installation device)
Next, a modification of the U-shaped member installation device will be described with reference to FIGS. 13 and 14. FIG. Note that in the modified example, the description of the same points as in the above embodiment will be omitted, and mainly the points that differ from the above embodiment will be described.

FIG. 13 is a side view showing a modification of the U-shaped member installation device 6. As shown in FIG. FIG. 14 is a schematic front view of a modified mounting mechanism 64'.

As shown in FIG. 13 , the modified U-shaped member installation device 6 includes a body portion 61 guided over the existing U-shaped member 5 and the body portion 61 being guided along the existing U-shaped member 5 . A traveling mechanism 62 for traveling in the installation direction, a transfer mechanism 63 for transferring the uninstalled U-shaped member 5 placed on the main body 61 along the main body 61, and a transfer mechanism 63 for transferring to a predetermined position. An installation mechanism 64' that grasps and lowers the uninstalled U-shaped member 5 and installs it adjacent to the existing U-shaped member 5 that is installed furthest forward in the installation direction, and the U-shaped member 5 a base material laying mechanism 65 for laying the base material 4 that serves as the base to be installed.

The main body portion 61, the traveling mechanism 62, the transfer mechanism 63, and the basic material laying mechanism 65 of the modified example are the same as the main body portion 61, the traveling mechanism 62, the transfer mechanism 63, and the basic material laying mechanism 65 of the above-described embodiment. omitted.

As shown in FIG. 13, the installation mechanism 64' of the modification is provided so as not to overlap the transfer mechanism 63 along the installation direction. The installation mechanism 64' includes a fixed frame 641' fixed on the body portion 61, a first movable portion 642' supported by the fixed frame 641' movably in the installation direction, and a first movable portion 642' movably in the horizontal direction. It has a second movable portion 643′ supported by the movable portion 642′ and an elevating mechanism 644′ that is provided on the second movable portion 643′ and lowers the U-shaped member 5 that has not yet been installed.

As shown in FIG. 13, the fixed frame 641' includes a pair of lower fixed frames 641a' fixed on the pair of base frames 611 so as to extend in the installation direction, and a pair of lower fixed frames 641a' to extend in the installation direction. It has a pair of upper fixed frames 641b' provided above the lower fixed frames 641a, and a connecting frame 641c' that connects the pair of lower fixed frames 641a' and the pair of upper fixed frames 641b'.

A first rectilinear guide groove 641d' extending in the installation direction is formed on the lower surface of the upper fixed frame 641b' facing the lower fixed frame 641a'. A first feed screw 641e' extending in the installation direction is rotatably supported inside the upper fixed frame 641b'. One end of the first feed screw 641e' is connected to the shaft of the first motor 641f' fixed to one end of the upper fixed frame 614b'. As a result, the first feed screw 641e' is rotationally driven by driving the first motor 641f'.

The connecting frame 641c' is provided to extend in the vertical direction, and one end (lower end) and the other end (upper end) of the connecting frame 641c' correspond to the ends of the lower fixed frame 641a' and the upper fixed frame 641b', respectively. connected to the department.

The pair of first movable parts 642' includes a first nut 642a' screwed onto the first feed screw 641e', and a first nut 642a' coupled to the first nut 642a' and guided by the first rectilinear guide groove 641d'. 1 slider 642b' and a horizontal frame 642c' connected to the first slider 642b' and extending in the horizontal direction.

When the first feed screw 641e' is driven to rotate by driving the first motor 641f', the first nut 642a' connected to the first slider 642b' guided by the first rectilinear guide groove 641d' moves toward the horizontal frame 642c. ' moves along the installation direction integrally. As a result, the pair of first movable parts 642' moves in the installation direction with respect to the fixed frame 641'.

In this manner, the first movable portion 642' is supported by the fixed frame 641' so as to be movable in the installation direction, so that the position of the gripped, uninstalled U-shaped member 5 in the installation direction can be adjusted. As a result, the U-shaped member 5 can be installed continuously to the existing U-shaped member 5 with high accuracy.

Therefore, the position in the installation direction of the uninstalled U-shaped member 5 supported by the pair of first movable portions 642' via the second movable portion 643' and the like is adjusted. That is, the installation direction position adjusting mechanism for adjusting the position in the installation direction of the gripped, uninstalled U-shaped member 5 includes the first linear guide groove 641d′ of the fixed frame 641′, the first feed screw 641e′ and the first feed screw 641e′. It is composed of a motor 641f', a first nut 642a' of a first movable portion 642', a first slider 642b' and a horizontal frame 642c'.

As shown in FIG. 14, a second rectilinear guide groove 642d' extending in the horizontal direction is formed in the lower surface of the horizontal frame 642c'. A second feed screw 642e' extending in the horizontal direction is rotatably supported inside the horizontal frame 642c'. One end of the second feed screw 642e' is connected to the shaft of a second motor 642f' fixed to one end of the horizontal frame 642c'. As a result, the second feed screw 642e' is rotationally driven by the drive of the second motor 642f'.

The second movable portion 643' includes a second nut 643a' screwed onto the second feed screw 642e', and a second slider 643b' connected to the second nut 643a' and guided by the second rectilinear guide groove 642d'. and a fixing base 643c' connected to the second slider 643b' and extending in the left-right direction.

When the second feed screw 642e' is rotationally driven by the drive of the second motor 642f', the second nut 643a' connected to the second slider 643b' guided by the second rectilinear guide groove 642d' moves toward the fixed base 643c. ' moves along the horizontal direction integrally. As a result, the second movable portion 643' moves laterally with respect to the first movable portion 642'.

In this way, since the second movable portion 643′ is supported by the first movable portion 642′ so as to be movable in the left-right direction, it is possible to adjust the position in the left-right direction of the gripped, uninstalled U-shaped member 5. As a result, the U-shaped member 5 can be installed continuously to the existing U-shaped member 5 with high accuracy.

Therefore, the U-shaped member 5 that is not yet installed and is supported by the second movable portion 643' can be moved in the left-right direction via the elevating mechanism 644'. That is, the left-right position adjusting mechanism for adjusting the left-right position of the gripped U-shaped member 5 is composed of the second rectilinear guide groove 642d' of the horizontal frame 642c', the second feed screw 642e' and the second feed screw 642e'. It is composed of a motor 642f', a second nut 643a' of the second movable portion 643', a second slider 643b', and a fixed base 643c'.

As shown in FIG. 14, the lifting mechanism 644' extends in the left-right direction and is fixed to a fixed table 643c'. A pair of rotating pulleys 646' fixed to a shaft 645a', a pair of belts 647' wound around the pair of rotating pulleys 646', and a pair of belts 647' connected to chamfering the U-shaped member 5. and a pair of grips 648' having hookable claws 648a'.

When the drive motor 645' rotates in one of the clockwise and counterclockwise directions, the belt 647' around which the rotating pulley 646' is wound is wound, thereby raising the pair of grips 648'. On the other hand, when the driving motor 645' rotates in the other of the clockwise and counterclockwise directions, the belt 647' around which the rotating pulley 646' is wound is unwound, thereby lowering the pair of gripping portions 648'. .

In this modification, the lifting mechanism 644' is configured to vertically move the pair of gripping portions 648' by a combination of a drive motor 645', a pair of rotating pulleys 646', and a pair of belts 647'. A combination of an electric winch and a wire rope may be used instead of the combination of In this case, one end and the other end of the wire rope are respectively connected to the electric winch and the pair of gripping parts 648 ′ fixed to the fixing base 643 ′, and the electric winch winds or unwinds the wire rope to grip the pair of grips. Part 648' can be raised and lowered.

In this way, the uninstalled U-shaped member 5 gripped by the gripping portion 648' is lowered by the lifting mechanism 644' and is adjacent to the existing U-shaped member 5 installed furthest forward in the installation direction. As a result, the U-shaped member 5 can be installed continuously to the existing U-shaped member 5 with good workability.

[Step of Laying Modified Base Material, Step of Transferring Uninstalled U-shaped Member, and Step of Installing Uninstalled U-shaped Member]
The step of laying the base material 4 of the modified example, the step of transferring the uninstalled U-shaped member 5, and the step of installing the uninstalled U-shaped member 5 are the steps of laying the base material 4 of the above embodiment. , the step of transferring the uninstalled U-shaped member 5, and the step of installing the uninstalled U-shaped member 5, so the description thereof will be omitted.

After the U-shaped member 5 is installed, the grip of the U-shaped member 5 is released only by moving the main body 61 forward in the running direction.

According to the U-shaped member installation device 6 according to the modified example, the same effects as those of the above-described embodiment can be obtained.

Although the present embodiment has been described above, the above embodiment merely shows a part of application examples of the present invention, and is not intended to limit the technical scope of the present invention to the specific configuration of the above embodiment. .

In the above embodiment, the U-shaped member installation device 6 includes the running mechanism 62, but is not limited to this, and may not include the running mechanism 62, for example. In this case, the rolling pressure unit 68 also has a running function for causing the main body 61 to run, and is provided with a motor for rotationally driving the rolling pressure roller 682 .

Further, in the above embodiment, the basic material laying mechanism 65 is configured integrally with the installation mechanism 64, but the present invention is not limited to this, and the installation mechanism 64 and the basic material laying mechanism 65 are configured separately. may In this configuration, the installation mechanism 64 and the base material laying mechanism 65 each have a traveling mechanism and travel independently.

1 ground 2 depression 3 crushed stone 4 base material 5 U-shaped member 6 U-shaped member installation device 7 vehicle 8 total station 61 main body 62 travel mechanism 63 transfer mechanism 64 installation mechanism 65 foundation material laying mechanism 66 hopper 67 leveling unit 68 roll Pressure part 69 Height adjustment mechanism 100 U-shaped member installation system 613 Guided part 622 Wheel 641 Fixed frame 642 First movable frame 643 Second movable frame 643g Third rectilinear guide groove (guide part)
644 Left-right moving part 644b Third slider (slider)
644c Grip

Claims (4)

A U-shaped member installation device for installing a U-shaped member continuously to an existing U-shaped member,
a main body guided over the existing U-shaped member;
a running mechanism for running the main body in the installation direction along the existing U-shaped member;
an installation mechanism that grips and lowers the uninstalled U-shaped member and installs it adjacent to the existing U-shaped member that is installed furthest forward in the installation direction ;
The installation mechanism is
a fixed frame fixed on the main body;
a first movable frame supported by the fixed frame so as to be movable in an installation direction;
a second movable frame supported by the first movable frame so as to be vertically movable;
a gripping portion that grips an uninstalled U-shaped member that is supported by the second movable frame;
U-shaped member installation device. The installation mechanism includes a lateral position adjustment mechanism that adjusts the lateral position of the gripped, uninstalled U-shaped member.
2. A U-shaped member installation device according to claim 1. The installation mechanism includes an installation direction position adjustment mechanism that adjusts the position of the gripped, uninstalled U-shaped member in the installation direction.
A U-shaped member installation device according to claim 1 or 2. further comprising a transfer mechanism provided behind the installation mechanism of the main body in the installation direction for transferring the uninstalled U-shaped member placed on the main body along the main body;
The installation mechanism grips and lowers the uninstalled U-shaped member transferred to a predetermined position by the transfer mechanism, and installs it adjacent to the existing U-shaped member installed furthest forward in the installation direction. ,
A U-shaped member installation device according to any one of claims 1 to 3 .

Images