JPH0638919Y2 - Free-form angry - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an abdominal recoil, and more particularly to a flexible abdomen that can be used not only in straight sections but also in curved sections.

[Conventional technology]

It is known that a wedge is used as an abdomen used to stop the curved excavation surface.
That is, this method is to connect relatively short abdomens continuously according to the curved surface of the terrain. In this case, the connecting portion is connected by the connecting shaft so that the adjacent reins can swing.

Then, in order to fix the adjacent reins to each other, the inner and outer grooves of the reins formed by sandwiching the connecting shaft,
Drive a wedge.

[Problems to be solved by the device]

However, according to the above-mentioned conventional method, there is a problem that the abdomen and the wedge are separate bodies, and the wedge is thin and small, so that it is easily lost.

In addition, it is necessary to prepare several types of wedges with different wedge angles in order to use the abdomen according to the curved surface of the terrain and to fix and fix the angles between the abdomen. Having many kinds of wedges is difficult to manage, and when attaching a bulge, the work of selecting a wedge with an appropriate angle is also difficult.

Furthermore, to fix the abdomen, wedges are driven into the groove between the inside and outside of the connecting part, but even if the outer wedge is driven for the entire length, the inside wedge will protrude from the abdominal surface. It will be in a state of being. For this reason, it is dangerous that an operator hooks his / her foot on the protruding wedge or hits the protruding wedge to cause the wedge to fly out or break. Also, when the wedge is driven, it may break if not driven carefully, and the broken pieces may fly and hurt the operator.

Further, the wedge has to be driven in at two locations, one on the inside and one on the outside, with one connecting portion. Therefore, when connecting a large number of retinas, it is difficult to drive all the wedges.

The present invention has been proposed to solve the above problems. And the purpose of the present invention is a simple structure,
The purpose of the present invention is to provide a flexible type uprising capable of coping with the excavation groove conditions at the site in the section of general straight lines and curved lines.

[Means for Solving the Problems]

The present invention adopts the following means in order to solve the above problems. That is, in the invention of the item (1), a plurality of agitating bodies, a connecting mechanism which is provided at one or both ends of the agitating body and connects adjacent agitating bodies to each other, and the connecting mechanism is connected. In a free-form uplifting body, which comprises an angle adjusting mechanism for fixing the uprising bodies together so as to adjust the angle according to the shape of the excavated surface, the connecting mechanism is capable of rotating the adjacent uprising bodies together, and It is configured with a connecting bolt that is movably connected in the length direction of the agitating body, and the angle adjusting mechanism is provided on one end side of the one agitating body that is connected by the connecting bolt. An internal gear having an arcuate gear surface centering on the connecting bolt, an external gear provided on one end side of the other raised body and meshing with the internal gear, and a screw on the connecting bolt. And the connecting bolt is turned in one direction. And an external gear driving piece that moves in the axial direction of the connecting bolt and contacts the inner peripheral surface of the external gear to mesh the external gear with the internal gear.

Further, the invention of item (2) is that a plurality of agitating bodies, a connecting mechanism which is provided at one or both ends of the agitating body and connects adjacent agitating bodies to each other, and an abdomen connected by the connecting mechanism. In a free-standing uplifting body, which comprises an angle adjusting mechanism for fixing the uplifting bodies according to the shape of the excavation surface so that the angles can be adjusted, the connecting mechanism rotatably connects adjacent uprising bodies. A positive screw nut that is composed of a pin and that is mounted on one end of the one uprising body connected to the angle adjusting mechanism by the connecting mechanism, and a reverse screw nut that is attached to one end of the other uprising body. , A positive screw on one end side is screwed to the positive screw nut, and a reverse screw on the other end side is screwed to the reverse screw nut, and the rotation thereof causes the adjacent uprising bodies to center on the pin. It consisted of both screw bolts to rotate

[Action]

In the invention of item (1), when the continuous bolt is rotated in one direction, the rotation of the external gear driving block, which is prevented from rotating, moves along the axial direction of the connecting bolt to press the external gear. Then, the external gear and the internal gear are disengaged so that the agitating body can be freely rotated.

After such a state, the body is angulated and the main bodies are rotated by hand to adjust the angle according to the shape of the excavation surface.

Then, when the connecting bolt is rotated in the other direction, the external gear driving piece moves toward the external gear, contacts the inner periphery of the external gear, and meshes the external gear with the internal gear. Then, the body is agitated and the main bodies are locked so that they cannot rotate.

(2) In the invention of the item, if both screw bolts are rotated in one direction, the positive nut and the reverse nut move toward each other, and the uprising body provided with the normal nut and the reverse nut is provided. Rotate each other in one direction around the pin.

Further, if both screw bolts are rotated in the other direction, the positive nut and the reverse nut move in the direction in which they are separated from each other, and the upset body is rotated in the other direction about the pins as the center.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

First, a general description of the free-standing abdomen of the present invention will be given. As shown in FIG. 1 and FIG. 2, the flexible reentrant A (hereinafter, simply referred to as “reentrant”) has a plurality of reentrant main bodies 1, 1a ...
, And a connecting mechanism 2 for connecting the abdominal rising bodies 1, 1a ... To each other, and an angle adjusting mechanism for fixing the abutting uplifting main bodies 1, 1a. 3 and 3. Then, FIG. 3 shows an example of using such an uprising. That is, when the excavation surface 100 such as root digging is curved, the sheet piles 101 and 101 are sequentially driven in order to prevent earth pressure on the excavation surface 100, and the sheet pile 101 is
Then, agitate and fix A. Then, the cut-outs 102 are arranged at both ends of the agitation A.

Next, the details of the upset will be described.

First, the first embodiment of the present invention (the invention of claim 1) will be described. As shown in FIGS. 4 (a) and 4 (b), the agitation A of the present embodiment is composed of a plurality of agitations. Main body 1, 1a ... and connection mechanism 2
And an angle adjusting mechanism 3.

First, the connecting mechanism 2 will be described. The connecting mechanism 2 is configured with a U-shaped reinforcing plate 20, a connecting bolt 21 and the like as main elements. That is, a reinforcing plate 20 having a rectangular front (coupling side) formed in a semicircular shape in a plan view and a U-shape in a side view is attached to one end of one of the uprising bodies 1. One end of the body 1a of the other angulation is sunk into the reinforcing plate 20, and the full-screw type connecting bolts 21 are pierced in the superposed state so that the bodies 1, 1a ... Are connected to each other. There is. Reference numeral 22 is a reinforcing plate attached in a state where the other body of the body 1a is closed and the end is closed, 23 is a connecting bolt, and 21 is a retaining spring pin.

Next, the angle adjusting mechanism 3 will be described.

The angle adjusting mechanism 3 mainly includes an internal gear (a gear having a concave tooth), an external gear (a convex tooth having a gear) 31, an external gear driving piece 32, a connecting bolt 21, and the like. Is configured as. That is, inside the U-shape of the reinforcing plate 20, two upper and lower internal gears 30 and 30a are attached from the U-shaped back plate toward the front. These internal gears 30,3
0a is for engaging with the semi-circular external gears 31, 31a fixed to the other raised body 1a, which will be described later, and has a center angle centered on the connecting bolt 21 in the plan view for reinforcement. The plate 20 is formed in a shape that connects the widest part of the plate 20, and the arcuate inner peripheral surface is a gear surface. One internal gear 30 is attached to the upper plate of the U-shaped reinforcing plate 20, and the other internal gear 30a is attached to the internal gear 30 with a gap about the thickness of the internal gear 30. There is.

The reinforcing plate 22 is fixed to one end of the other agitating body 1a connected to the agitating body 1. Two semicircular external gears 31, 31a meshing with the upper and lower internal gears 30, 30a are fixed to the reinforcing plate 22. Further, external tooth gear drive pieces 32, 32a are screwed into the connecting bolt 21. The external gear driving pieces 32, 32a are formed in a shape in which both sides of a truncated cone are cut so that their cut surfaces are parallel to each other. When the connecting bolt 21 is rotated, the shaft of the bolt 21 is rotated. It is designed to move up and down. Then, the inner diameter portion of the external gear 31, 31a is formed so as to engage with the inclined portion of the external gear tops 32, 32a. Therefore, when the connecting bolt 21 is turned, the external gear tops 32, 32a screwed with the connecting bolt 21 move up and down. Since the external gear driving pieces 32, 32a are also engaged with the external gears 31, 31a,
By vertically moving the external gear driving pieces 32, 32a, the external gears 31, 31a are brought into mesh with the internal gear 30, 30a, or disengaged from each other. 33 is a spring, one end of which is connected to the connecting bolt 21, and the other end of which is agitated and fixed to the body 1a side. It is to assist. In addition, in FIG. 4, two agitating bodies 1 and 1a are connected continuously, but when the agitating bodies in the middle are continuously connected to each other, the agitating mechanism 2, The angle adjusting mechanism 3 is provided.

The operation and effect of this embodiment having such a configuration will be described.

In order to install the uprising A according to the shape of the excavation surface such as root digging, the connecting bolt 21 is turned to rotate the external gear drive pieces 32, 32a.
To lower the engagement between the tops 32 and 32a and the external gears 31 and 31a. Raise the body, move the main body 1 and 1a by hand, and adjust the angle according to the shape of the excavation surface. Then, the connecting bolt 21 is turned to move the external gear driving pieces 32, 32a to the upper part. Fix the external gear 31, 31a by engaging the external gear drive pieces 32, 32a with the inclined surface of the external gear 31, 31a and engaging the external gear 31, 31a with the internal gear 30, 30a. Then, after all, the body is agitated and the main body 1 and 1a are fixed together.

As described above, according to the present embodiment, the connecting bolts 21 are angulated to connect the main bodies to each other, and the angle is adjusted by the internal gear, the internal gear, the external gear driving piece, and the like. Since the internal gear and the external gear mesh with each other, it is difficult to return from the angle adjusted when adjusting the angle, and it is a simple operation to rotate the connecting bolt 21 to move the external gear drive pieces 32, 32a. Yes, it can be firmly fixed.

Next, the second embodiment of the present invention (the invention of claim 2) will be described. As shown in FIGS. 5 (a) and 5 (b), the agitation A of the present embodiment is composed of a plurality of bellies. Raising body 1, 1a ..., and connection mechanism 2
And an angle adjusting mechanism 3.

First, the connection mechanism 2 will be described.

The connecting mechanism 2 is composed of brackets 40, 40a, a fixing pin 41 and the like. That is, the reinforcing plates 42, 42 are attached to one end of each of the uprising bodies 1, 1a, and the upper and lower brackets 40, 40a are fixed to the reinforcing plates 42, 42. Then, the fixing pins are attached by being sandwiched between the brackets 40, 40a, and are supported by the spring pins 43, 43. Further, an escape portion is formed at the center of the fixing pin 41 in the longitudinal direction so as not to hinder the rotation of both screw bolts 50 described later.

Next, the angle adjusting mechanism 3 will be described.

The angle adjusting mechanism 3 is configured with a double screw bolt 50, a positive screw nut 51, a reverse screw nut 52 and a spring pin 53 as main elements. That is, a positive screw nut 51 and a reverse screw nut 52 are attached to the brackets 40 and 40a in parallel with the fixing pin 41 by spring pins 53 and 53, respectively. To both the positive screw nut 51 and the reverse screw nut 52, double screw bolts 50 screwed to these are attached.

Therefore, the angle is adjusted by rotating the both screw bolts 50 and raising the body to move each other. That is, when the both screw bolts 50 are turned to bring the forward and reverse screw nuts 51 and 52 closer to each other, the body is reentrantly fixed and the fixing pins 41 are fixed.
The agitating body 1, 1a moves in the V-shape in FIG. 5 (a). If both screw bolts 50 are turned in the opposite direction and the forward and reverse screw nuts 51, 52 are moved in the directions away from each other, the upset body bodies 1 and 1a move in the reverse V-shape.

In addition, in FIG. 5, the two uprising bodies 1, 1a are connected to each other, but when connecting and sequentially connecting, the uprising body in the middle part has a connecting mechanism at both ends. 2. The angle adjusting mechanism 3 is provided.

The operation and effect of this embodiment having such a configuration will be described.

In order to install the uprising A according to the shape of the excavated surface such as root digging, the both screw bolts 50 are turned and the uprising body 1, 1a is swung to adjust the installation angle.

As described above, according to this embodiment, the bracket 40 and the bracket 40a are connected to each other by the fixing pin 41 at one position, and the screw bolt 50 and the forward and reverse nuts screwed to both screws at the other position. Since they are connected by engaging with 51, 52, the device is simple, and the angle can be adjusted by simply turning both screw bolts 50, and since they are fixed at the same time, the operation is also easy.

Next, referring to a third embodiment of the present invention, FIG.
As shown in (b), the reinstatement A of this embodiment is composed of a plurality of uprising bodies 1, 1a ..., A connecting mechanism 2 and an angle adjusting mechanism 3.

First, the connection mechanism 2 will be described.
0, the fixing pin 64, the U-shaped metal fitting 61, etc. are configured as main elements. That is, two attachment holes that penetrate vertically are opened at the end of one of the uprising bodies 1. Then, a U-shaped metal fitting 61 having mounting holes corresponding to these two mounting holes is fixed to one end of the other rising body 1a. However, among the mounting holes of the U-shaped metal fitting 61, the elongated hole 62 on the side of the connecting pin 60 is an arc groove formed at the base point of the mounting hole on the side of the fixed pin 64. The U-shaped metal fitting 61 is attached in such a manner that one end of the upright body is sandwiched and the connecting pin 60 is inserted into the long hole 62 in this state to raise the upright body 1 and the upright body 1a. And are connected. 63 is a spring pin for preventing the connecting pin 61 from coming off.

Further, in parallel with the connecting pin 60, a fixing pin 64 is attached from a U-shaped metal fitting 61 through one of the uprising portions and through an attachment hole of the main body 1. The fixing pin 64 is exactly the same as the connecting pin 60.

Next, the angle adjusting mechanism 3 will be described.

The angle adjusting mechanism 3 includes a connecting pin 60, a hinge bolt 70, a nut 71.
Etc. are configured as main elements. That is, in the middle of the connecting pin 60, a hinge bolt 70 having a ring part passed through the shaft of the connecting pin 60 is attached to the back plate 61a of the U-shaped metal fitting 60, and the body 1 is raised.
a It is inserted in flange type oil-impregnated bearings 73, 73 attached to a reinforcing plate 72 fixed to the tip. A nut having a width across flats formed on the hinge bolt 70 between the back plate 61a of the U-shaped metal fitting 61 and the reinforcing plate so that a fastener such as a wrench can be inserted. Screw 71 together. Further, in order to protect the nut 71 from soil and the like, an openable / closable cover 75 is attached upward via a hinge 74. Further, the collars 76, 76 are inserted in the shaft portion of the connecting pin 60 so that the hinge bolt 70 does not move in the shaft portion of the connecting pin 60. In the present embodiment, the shape of the long hole 62 is a circular arc groove with the fixed pin 64 side as a base point.

In addition, in FIG. 6, the two uprising bodies 1 and 1a are connected to each other, but when they are successively connected in succession, the middle uprising body has a continuous mechanism 2, The angle adjusting mechanism 3 is provided.

The operation and effect of this embodiment having such a configuration will be described.

In order to set up the main bodies 1 and 1a in accordance with the shape of the excavated surface such as root digging, the cover 75 is opened, a spanner or the like is used to sandwich the width across flats of the nut 71, and the nut 71 is turned. The hinge bolt 70 is then pulled or pushed to move the continuous pin 60 within the length of the slot 62. That is, the angle is adjusted according to the amount of movement. Then, the cover 75 is closed, and the patient is agitated and the installation is completed.

As described above, according to the present embodiment, since the upright members are connected by the connecting pin 60 and the U-shaped metal fitting 61, the device is simple, and the angle can be adjusted by simply turning the nut 71. , It is fixed at the same time, so the operation is easy.

Next, a fourth embodiment of the present invention will be described with reference to FIG.
As shown in (b), the uprising A of the present embodiment is composed of a plurality of uprising bodies 1, 1a ..., A connecting mechanism 2 and an angle adjusting mechanism 3.

First, the connecting mechanism 2 will be described. The connecting mechanism 2 includes a connecting screw 80 having a full screw, a nut 81, and two U-shaped metal fittings 81 and 82.
The main elements are and. First, the U-shaped metal fittings 81 and 82 are fixed to the respective ends of the abutting body 1, 1a to be connected so that the U-shapes face each other and overlap each other. Then, a connecting bolt 80 of full screw is provided by penetrating the U-shaped metal fittings 81, 82 which are overlapped with each other, and is fixed by a nut. However, this connecting bolt 80 is
It is inserted into flange-shaped collars 83, 83 fitted in 1, 82 and is rotatable. Further, 84 is a pin for preventing the connecting bolt 80 from coming off.

Next, the angle adjusting mechanism 3 includes the connecting bolt 80 and the A frame 90.
And B frame 91 and mover 92. First, of the U-shaped metal fittings 81, 82, an A-commercial 90 is placed inside the back plate of the outer U-shaped metal fitting 81, and an A-commercial 90 is placed inside the back plate of the inner U-shaped metal fitting 82. The B piece 91 is attached so as to face each other.
The A frame 90 and the B frame 91 are formed so as to be bilaterally symmetrical with respect to the center of the connecting bolt 80. The B frame 91 has a U shape with both ends protruding in a plan view, and when viewed from the side, one of the protruding parts is the protrusion of the protrusion with the center of the height of the B frame 91 as a base point. It forms a downward sloping slope connecting the base point. The other protruding portion is opposite to the above, that is, intersects at the base point to form an X shape. A frame 90 is symmetrical with B frame 91.

A mover 92 is screwed onto the connecting bolt 80. The mover 92 is in the shape of a rectangular block, and
It is formed so as to engage with the U-shaped inclination of 90 and B top 91. That is, the four corner portions in the plan view are engaged with the protruding portions of the A-frame 90 and the B-frame 91, respectively, and are recessed. Therefore, when the connecting bolt 80 is rotated, the moving element 92 screwed to the connecting bolt 80 moves. If the mover 92 rises, in this embodiment, the A frame 90 and the B frame 91
However, since it has an inclination that narrows upward,
1, 1a move in the V-shaped direction in FIG. 7 (a),
When the mover 92 descends, it moves in the reverse V-shape.

It should be noted that, in FIG. 7, the two uprising bodies 1, 1a are connected to each other. The angle adjusting mechanism 3 is provided.

The operation and effect of this embodiment having such a configuration will be described.

The connecting bolt 80 and the rotating element 92 are moved in order to install the main body 1, 1a in accordance with the shape of the excavation surface such as root excavation. Since the movement of the mover 92 causes the upset and the angles of the main bodies 1 and 1a change, the connecting bolt 80 is rotated until the upset and the main bodies 1 and 1a are set at a predetermined angle.

Thus, according to this embodiment, the connecting bolt 80 and the nut 8
The main body 1, 1a is agitated by 1 and the main bodies 1 and 1a are connected to each other, and the angle is adjusted by utilizing the engagement with the A frame 90 and the B frame 91 by the movement of the moving element 92 which is screwed with the connecting bolt 80. Therefore, the angle can be adjusted inward and outward simply by turning the connecting bolt 80. Further, since the connecting bolt 80 and the mover 92 are screwed together, it is difficult to return from the angle adjusted when adjusting the angle.

[Effect of device]

In the flexible type upraise of the invention of the item (1), by disengaging the internal gear and the external gear, the abdomen can be easily rotated and the angles can be adjusted. .

Further, after the angle adjustment is completed, the internal gear and the external gear are brought into mesh with each other, whereby it is possible to surely prevent the upset and the mutual rotation of the main bodies.

In the free-type upsetting device of the invention of the item (2), the upsetting body is rotated by rotating both screw bolts provided with a positive screw at one end side and a reverse screw at the other end side. The angle adjustment can be maintained unless the screw bolts are moved to make these angle adjustments and both screw bolts are turned.

[Brief description of drawings]

FIGS. 1 to 7 respectively show an embodiment of a flexible type waving apparatus of the present invention. FIG. 1 is a plan view of the flexible type waving apparatus, and FIG.
The figure is the same side view, FIG. 3 is a perspective view of the use state of the free-standing uprising, FIG. 4 shows the first embodiment, FIG. 4 (a) is a plan view, and FIG. FIG. 5 shows a second embodiment, FIG. 5 (a) is a plan view, FIG. 5 (b) is a side view, and FIG. 6 shows a third embodiment, which is a plan view. (B) is a side view,
FIG. 7 shows a fourth embodiment, FIG. 7 (a) is a plan view, and FIG. 7 (b) is a side view. A: Flexible type, 1,1a to 1n: Raised body, 2 ...
Connection mechanism, 3 ... Angle adjustment mechanism, 21,80 ... Connection bolt, 32 ... Inclined piece, 50 ... Double screw bolt, 60 ... Connection pin, 70 ... Hinge bolt, 92 ... Mover.

Claims (2)

[Scope of utility model registration request] 1. A plurality of agitating bodies, a connecting mechanism provided at one end or both ends of the agitating body to connect adjacent agitating bodies to each other, and agitating bodies connected by the connecting mechanism. And an angle adjusting mechanism for fixing the angle adjustable so as to match the shape of the excavation surface, the connecting mechanism being capable of rotating the adjacent uprising bodies mutually,
And is composed of a connecting bolt that is movably connected in the lengthwise direction of the body, and the angle adjusting mechanism is provided on one end side of the one body that is connected by the connecting bolt. An internal gear having an arcuate gear surface centering on the connecting bolt, an external gear provided on one end side of the other raised body and meshing with the internal gear, and a screw on the connecting bolt. Are joined together, by turning the connecting bolt in one direction,
An external gear driving piece that moves along the axial direction of the connecting bolt, contacts the inner peripheral surface of the external gear, and meshes the external gear with the internal gear. Free-form angry. 2. A plurality of agitating bodies, a connecting mechanism provided at one end or both ends of the agitating body to connect adjacent agitating bodies, and the agitating bodies connected by the connecting mechanism. And an angle adjusting mechanism that fixes the excavation surface so that the angle can be adjusted according to the shape of the excavating surface, and the connecting mechanism is configured by a pin that rotatably connects the adjacent uprising bodies to each other, and the angle adjusting mechanism is , A positive screw nut attached to one end of the waving body connected by the connecting mechanism, a reverse screw nut attached to one end of the other waving body, and a positive screw on one end side of the positive screw nut And a reverse screw on the other end side is screwed into the reverse screw nut, and by rotation thereof, double screw bolts for rotating adjacent uprising bodies around the pin as a center. Free-standing angulation that is characterized by being.