JP2000061538A - Bending machine for flexible tube - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bending machine for a flexible tube capable of directly attaching a section to which bending of the flexible tube is applied to a main body and accordingly applying bending to a desired section whatever state the flexible tube may be without executing troublesome work wherein the flexible tube is moved up to a section to which bending is applied after inserting an end part of the flexible tube into the main body once. SOLUTION: In this bending machine for a flexible tube wherein tube receiving bodies 9 for supporting the flexible tube with two points in the longitudinal direction and a pressurizing means 16 capable of pressurizing the flexible tube between the tube receiving bodies 9 are provided in a base body 2, the tube receiving bodies 9 are pivotally supported with the base body 2 and recessed parts 10 capable of supporting the flexible tube which is inserted from the radial direction are openly provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bending machine for a flexible tube, and more particularly, to a flexible machine capable of performing a bending work on an arbitrary position of a flexible tube and easily performing a bending work. The present invention relates to a bending machine for tubes.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 7, a bending machine for a flexible tube of this type has two frames.
Two rollers 31 ', 31' are arranged apart from each other between 30 ', 30', and a cylinder 32 'is arranged on an orthogonal line passing through a substantially midpoint of the rollers 31', 31 ', and further, Various structures have been proposed in which a pressing body 34 'having an arcuate shape in plan view and a semicircular shape in cross section is attached to the tip of a piston 33' of a cylinder 32 '.

In the bending machine for a flexible tube described above, a straight tubular flexible tube 3 is provided between the frames 30 'and 30' and between the roller 31 'and the pressing body 34'.
Insert the end of the 5'and move the flexible tube 35 'to the desired position to
After mounting 5 ', as shown in FIG. 8, when the cylinder 32' is operated to cause the piston 33 'to project, the flexible tube 35' is pressed by the pressing body 34 'and the rollers 31', 3 '
Can be curved with 1'as a fulcrum.

Therefore, when the bending machine for a flexible tube is used, the flexible tube 35 'is bent into a desired shape by adjusting the protrusion amount of the piston 33' and changing the shape of the pressing body 34 '. It can be done.

[0005]

However, in the above bending machine for a flexible tube, in order to bend the desired portion of the flexible tube, the ends of the flexible tube are once frame 30 ', 30'. After the insertion, it is necessary to move the flexible tube to a desired portion, but in the case of a flexible tube having a length of about 4 m, there is a problem that such a work becomes very complicated.

Moreover, in the above bending machine for a flexible tube, since the curved portion of the flexible tube cannot pass between the frames 30 ', 30', the curved portion of the flexible tube and the adjacent curved portion are There was a problem that bending could not be performed in the meantime.

Therefore, in order to finish one flexible tube into a desired shape, a very complicated work of sequentially bending the flexible tube from one end to the other end is required.

Therefore, the present invention has been made in view of the above problems, and once the end of the flexible tube is inserted into the main body, the flexible tube is moved to the portion to be bent. For a flexible tube that can be directly bent to a desired part of the flexible tube, and can be bent to a desired part regardless of the state of the flexible tube. An object is to provide a bending machine.

[0009]

In order to solve the above-mentioned problems, a bending machine for a flexible tube according to the present invention is provided with pipe receivers 9 and 9 for supporting the flexible tube 28 at two points in the longitudinal direction. In a flexible tube bending machine in which a pressing means 16 capable of pressing between the tube receivers 9 and 9 of the flexible tube 28 is provided in the base body 2, the pipe receiver 9 is pivotally supported by the base body 2, It is characterized in that a recess (10) capable of supporting the flexible tube 28 by inserting it in the radial direction is formed.

According to the flexible tube bending machine having the above structure, the flexible tube 28 is inserted into the recesses 10 of the two tube receivers 9 and 9 from the radial direction, or the flexible tube 28 is inserted into the flexible tube 28 from the radial direction. Two tube receivers
With the recesses 10 of 9, 9 inserted respectively, and the flexible tube 28 is supported at two points by the two tube receivers 9, 9, the pressing means 16 is provided between the tube receivers 9, 9 of the flexible tube 28. The flexible tube 28 is bent by being pressed.

In addition, when the flexible tube 28 is bent, the tube receiving body 9 that supports the flexible tube 28 according to the change in the bending angle of the flexible tube 28 is the base body.
By rotating with respect to 2, the flexible tube 28 curved in a substantially V shape is formed.

Further, in the flexible tube bending machine according to the present invention, when the flexible tube 28 is pressed by the pressing means 16, the holding recess 11 for holding the flexible tube 28 is the recessed portion. It is possible to adopt a configuration in which 10 units are connected in series. In the flexible tube bending machine according to claim 2 having such a configuration, the flexible tube 28 pressed by the pressing means 16 is held in the holding recess 11 during the bending work, so that the flexible tube 28 is unloaded. Without moving to
It is supported by the tube receiver 9.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION <First Embodiment> A first embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1 or 2, 1 is a device body, and the device body 1 is
The base 2 is provided with two pipe receivers 9 and 9 rotatably supported by the base 2, and pressing means 16 capable of pressing between the pipe receivers 9 and 9.

The base 2 comprises a prismatic base 3 and the base 3.
3 and a substantially triangular substrate 4 fixed on a seat portion 3a formed by cutting out one end side of the base portion 3 and formed in a symmetrical shape in plan view around the center line of the base portion 3. The top of 3 has a handle 5 for carrying the device body 1.
Is installed.

Further, the substrate 4 is provided with a mounting hole 6 into which the pipe receiver 9 can be mounted. In the present embodiment, two pairs of bilaterally symmetrical mounting holes 6 and 6 are provided, A total of four holes have been drilled.

That is, one set is the mounting holes 6a, 6a located in the vicinity of the corner of the substrate 4, and the other set is located closer to the pressing means 16 than the distance between the mounting holes 6a, 6a. Mounting holes 6b, 6b.

For the purpose of reinforcing the base plate 4 and fixing it to the base 3, a strip plate member 7 is attached to the bottom side of the lower surface of the base plate 4, and the central portion of the strip plate member 7 is attached to the base part 3. It is attached to the end face of.

The pipe receiver 9 is a cubic block portion 9a.
In addition, a cylindrical boss portion 9b is protruded from the lower surface thereof, and further, after forming a long hole on the side surface of the block portion 9a, a part of the block portion 9a above the long hole may be cut out. so,
A concave portion (10) into which a flexible tube can be inserted is formed.

That is, the concave portion 10 has a long hole formed in the side surface of the block portion 9a so that one side of the long hole is perpendicular to the arc portion of the long hole. It is formed by notching the upper surface of the block portion 9a so as to be narrower than that of the block portion 9a, and is formed in a shape similar to an L shape in a side view. Moreover, since the notch is formed wider than the diameter of the flexible tube, the flexible tube can be inserted from the upper surface of the recess 10.

Further, the circular arc portion on the other side of the elongated hole formed in the concave portion 10 is provided with a holding concave portion 11 which is continuous with the circular arc of 90 degrees or more and can come into contact with the flexible tube.
By notching the upper surface of the block portion 9a, a projection portion 9c is formed which restricts the upward movement of the flexible tube.

Therefore, the diameter of the flexible tube is
When the diameter is the same as that of the long hole, that is, the diameter of the holding recess 11, the outer circumference of the flexible tube and the holding recess 11 are the same.
The entire surface of the flexible tube is brought into a substantially contact state, and the movement of the flexible tube can be restricted.

A hole 12 is formed in the bottom of the recess 10 so as to be concentric with the boss 9b and allow a bolt, a screw or the like to pass therethrough, and to have a head concentric with the hole 12 such as a bolt or a screw. A seat 13 to be embedded is formed.

Accordingly, the bolt 14 is inserted into the hole 12, the bolt 14 is inserted into the mounting hole 6 of the substrate 4, and then the nut 15 is screwed from the rear surface of the substrate 4, so that the pipe receiver 9 is fixed to the substrate.
It is attached to 4 and pivotally supported. In addition, pipe receiver 9
When the board is attached to the board 4, the end surface of the cylindrical boss 9b projecting from the tube receiver 9 contacts the board 4, and the contact area is small. The rotational frictional force of is reduced.

Next, the pressing means 16 includes a cylinder (not shown) formed in the axial direction of the base 3 from the notched end surface 3a of the base body 2, a piston 18 slidable in the cylinder, and A fixture 19 attached to the tip of the piston 18 and the fixture
It comprises a pressing body 20 attached to 19 and means for supplying / discharging working oil (not shown) in the cylinder for sliding the piston 18.

The fitting 19 is a cylindrical body having a forked portion 19a protruding from one end surface, and a female screw is formed on the other end surface. The female screw and the tip of the piston 18 are engraved. The fitting 19 is attached to the piston 18 by screwing with a male screw.

Further, a hole is communicated with the bifurcated portion 19a, and the pin 21 is fitted in and detachable from the hole.

The pressing body 20 is composed of a substantially fan-shaped flat plate 20a and a pressing plate 20b attached along the arc of the flat plate 20a and having an arc shape in a plan view and a semicircular shape in a sectional view.
The central portion of the arc-shaped edge of 20b is cut out in a straight line in the upper and lower sides.

Further, the flat plate 20a is formed with a hole through which the pin 21 can be inserted. The flat plate 20a of the pressing body 20 is inserted into the forked part 19a of the fixture 19, and the hole of the forked part 19a and the flat plate 20a.
By inserting the pin 21 from above in a state where the hole a is aligned, the pressing body 20 is attached to the fixture 19 and is rotatable in the horizontal plane.

Further, a horizontally elongated auxiliary plate 22 is attached to the other end surface of the mounting member 19, and a tip end of a guide shaft 25 of a guide body 23 described later is provided at both ends of the auxiliary plate 22. It is fixed.

The guide body 23 is a cylindrical guide tube 24.
And a guide shaft 25 slidable in the guide cylinder 24. The guide body 23 is fitted into holes formed in support members 26 fixed to both sides of the base body 2, respectively, It is arranged in parallel with.

Therefore, if the supply / discharge means is connected to the injection portion 27 which is bored on the side of the base body 2 and communicates with the inside of the cylinder, the hydraulic oil is supplied into the cylinder by the supply / discharge means, the piston 18 protrudes from the base body 2 and the guide shafts 25, 25 on both sides of the base body 2 protrude from the guide cylinders 24, 24, and the pressing body 20 moves to the pipe receiving body 9 side, while the supply / discharge means supplies the operating oil Once discharged from the cylinder, the piston 18
Is accommodated in the base body 2 and the guide shafts on both sides of the base body 2
25, 25 are housed in the guide tubes 24, 24, and the pressing body 20 is the pipe receiving body.
Move away from the 9 side.

The flexible tube bending machine according to this embodiment has the above-mentioned configuration, and will be described below with reference to FIGS.
Based on, the method of using the flexible tube bending machine will be described. First, as shown in FIG. 3, the flexible tube 28 is arranged in the radial direction from the recesses 10 of the two tube receivers 9, 9.
Or the recesses 10 of the two tube receivers 9 and 9 are inserted into the flexible tube 28 from the radial direction thereof. In the present embodiment, the flexible tube 28 having a wavy portion locally is used, but the invention is not limited to this, and even a flexible tube having a wavy portion on the entire tube is a target of the flexible tube bending machine. Can be

Further, since the central portion of the arcuate end of the pressing plate 20b of the pressing body 20 is linearly cut out in the upper and lower sides, the flexible tube 28 does not interfere with the pressing body 20 and the flexible tube 28 is It can be inserted into two tube receptacles 9,9.

Next, as shown in FIG. 4, hydraulic oil is supplied into the cylinder by the supply / discharge means (not shown) connected to the injection portion 27, and the piston 18 is projected from the base 2.

At this time, according to the protrusion of the piston 18,
From the guide tube 24 of the guide body 23 on both sides of the base 2 to the guide shaft
25 is also projected, and the piston 18 is projected straight with the assistance of the guide body 23.

Moreover, as the protruding amount of the piston 18 gradually increases, the pressing body 20 abuts the outer peripheral surface of the flexible tube 28 to press the flexible tube 28. Holding recess
When the flexible tube 28 comes into contact with the flexible tube 28, the flexible tube 28 is supported by the tube receiving body 9 without moving, and after that, the flexible tube 28 is curved along the arc of the inner surface of the pressing plate 20b of the pressing body 20. Will be done.

Further, as the flexible tube 28 bends, the tube receiver 9 that supports the flexible tube 28 according to the change in the bending angle of the flexible tube 28 is the base body.
By rotating with respect to 2, the flexible tube 28 curved in a substantially V shape is formed.

When the flexible tube 28 is bent, the desired bending angle of the flexible tube 28 is obtained by appropriately setting the protrusion amount of the piston 18.

As described above, in the flexible tube bending machine of this embodiment, the portion of the flexible tube 28 to be bent can be directly attached to the apparatus main body 1 and the work efficiency of bending is improved. In addition to being able to directly bend the flexible tube, the flexible tube 28 can be directly attached to the apparatus main body 1, so that the flexible tube 28 is not a straight tube and can be bent in several places. It is possible to surely bend a desired portion, and when bending the flexible tube 28, the pipe receiver 9 that supports the flexible tube 28 according to the change in the bending angle of the flexible tube 28 is attached to the base body 2. Since the flexible tube 28 rotates with respect to the flexible tube 28, there is an advantage that the flexible tube 28 can be curved in a substantially V shape.

The flexible tube 28 pressed against the tube receiver 9 by the pressing body 20 is a holding recess for the tube receiver 9.
Since the movement of the flexible tube 28 is regulated by contacting with the flexible tube 28, it is possible to prevent the flexible tube 28 from moving excessively when the flexible tube 28 is bent.

Moreover, since the projection 9a is formed on the tube receiver 9, there is an advantage that it is possible to suitably prevent the flexible tube 28 from accidentally jumping upward.

As described above, the flexible tube 28 having a desired bending angle can be obtained by changing the protrusion amount of the piston 18 of the pressing means 16, but not limited to this, the protrusion of the piston 18 is not limited to this. Even if the amount is constant, by attaching the pipe receiver 9 to the mounting hole 6b and changing the relative distance between the flexible tube 28 supported by the pipe receiver 9 and the pressing means 16, the flexible tube 28 This has the advantage that the bending angle can be changed. That is, since the mounting position of the pipe receiver 9 on the base 2 can be changed, the flexible tube 28 supported by the pipe receiver 9 can be changed by changing the position of the pipe receiver 9 with respect to the base 2. Since the relative distance between the pressing means 16 and the pressing means 16 is changed, the bending angle of the flexible tube 28 can be changed.

Furthermore, there is an advantage that the bending radius of the flexible tube 28 can be changed by replacing the pressing body 20 with one having a different arc radius on the inner surface of the pressing plate 20b.

Further, since the guide bodies 23, 23 are attached to the pressing means 17, the piston 18 can be made to protrude straightly, and the load load on the piston 18 can be reduced, so that the piston 18 is prevented from being damaged. It has the advantage that it can be suitably prevented.

<Second Embodiment> A second embodiment of the present invention will be described below with reference to the drawings. The same parts as those in the first embodiment are designated by the same reference numerals.
As shown in FIG. 5 or FIG. 6, 1 is an apparatus main body, and the apparatus main body 1 includes a base 2 and two pipe receivers 9 and 9 rotatably supported by the base 2. And a pressing means (16) capable of pressing between the tube receivers (9, 9).

The base 2 includes a cylindrical base 3, side plates 30 and 30 sandwiching one end of the base 3, supporting rods 31 and 31 attached to the side plate 30, and lower portions of the side plates 30 and 30. And the supporting plates 31 and 31 are arranged symmetrically in a plan view with the center line of the base 3 as the center.

The pipe receiver 9 includes a holding plate 34 curved in an arcuate shape in a side view, and two rib plates 35, 35 for reinforcing the holding plate 34 along the back surface of the holding plate 34. , A holding plate 34 and rib plates 35, 35, and an opposing plate 36 that holds the tip of the support rod 31 between them. The opposing plate 36 inserts the shaft 38 with the tip of the support rod 31 held between them. As a result, the pipe receiver 9 is rotatably supported by the base body 2.

The holding plate 34 forms a concave portion 10 into which a flexible tube can be inserted by separating both ends thereof and curving in a substantially oval shape in a side view. It is wider than the diameter of the flexible tube.

Further, the circular arc portion on the other side of the major axis formed in the concave portion 10 is provided with a holding concave portion 11 which is continuous with the circular arc of 90 degrees or more and can come into contact with the flexible tube.
By opening the one end side of the long diameter above the recessed portion 10, a protruding portion 35a is formed in which the upward movement of the flexible tube held in the holding recessed portion 11 is restricted.

Therefore, the diameter of the flexible tube is
When the diameter is the same as that of the long hole, that is, the diameter of the holding recess 11, the outer circumference of the flexible tube and the holding recess 11 are the same.
The entire surface of the holding recess 11 is in a state of substantially abutting, the movement of the flexible tube can be restricted, and the diameter of the holding recess 11 is the maximum diameter so that all the target flexible tubes can be processed by one tube receiver 9. The diameter is set to be approximately the same as the flexible tube.

The tip of the facing plate 36 of the pipe receiver 9 is
A graduation 40 that is formed at an acute angle and that faces the tip of the facing plate 36 is engraved on the support rod 31 of the base body 2.
The rotation angle of the tube receiver 9 with respect to 2 can be grasped. In the present embodiment, the two pipe receivers 9,9
Are parallel to each other, and the position where the flexible tube can be inserted is at a position where the “0 degree line” scale 40a and the two tube receivers 9 and 9 intersect at 90 degrees, and the flexible tube is bent at 90 degrees. "45 degree line" scale 40d
And, the intermediate graduations 40b and 40c that divide the space between the "0 degree line" scale 40a and the "45 degree line" scale 40d into three equal parts.
And four scales are engraved.

The pressing means 16 includes a cylinder (not shown) formed in the axial direction of the base 3, a piston 18 slidable in the cylinder, and an attachment tool attached to the tip of the piston 18. 19, a pressing body 20 attached to the fixture 19,
It comprises a supply / discharge means 41 for supplying / discharging hydraulic oil to / from the cylinder so as to slide the piston 18.

The pressing body 20 is substantially the same as the pressing body 20 in the first embodiment, and has a substantially fan-shaped flat plate 20a and the flat plate 20.
It is attached along the arc of a and consists of a pressing plate 20b that is arcuate in plan view and semicircular in cross section, and is attached to the fixture 19.
It can be rotated on a horizontal plane. Moreover, the central portion of the arcuate end edge of the pressing plate 20b is notched in a straight line in the vertical direction.

Further, the supply / discharge means 41 is configured to supply / discharge the working oil stored in the space formed inside the base portion 3 on the larger diameter side of the cylinder into the cylinder. A pump 43 fixed to the connecting plate 32 of the base body 2, a link 44 whose one end is pivotally supported by the connecting plate 32, and a swing which is pivotally supported by the other end of the link 44 and a rod 43a of the pump 43. The operating handle 45 is provided, and by swinging the swinging handle 45 up and down about the other end of the link 44, the rod 43a of the pump 43 slides up and down, and the working oil enters the cylinder. Supplied, the piston 18 projects from the cylinder.

A return valve 46 is provided on the other end side of the base portion 3 for establishing communication between the cylinder and the hydraulic oil storage portion. By pressing the return valve 46, the inside of the cylinder is closed. The hydraulic oil returns to the reservoir, and the hydraulic pressure in the cylinder decreases.

A coil spring (not shown) for urging the piston 18 in the direction in which the piston 18 is housed in the cylinder is fitted to the piston 18, and when the hydraulic pressure in the cylinder is reduced, The piston 18 is housed in the cylinder by the biasing force of the coil spring.

The flexible tube bending machine according to this embodiment has the above-mentioned structure, and the method of using the flexible tube bending machine will be described below. First, the flexible tube is inserted into the recesses 10 of the two tube receivers 9 and 9 from the radial direction, or the flexible tube is inserted into the recesses 10 of the two tube receivers 9 and 9 from the radial direction. .

Next, the rocking operation of the rocking handle 45 is repeated to supply hydraulic oil into the cylinder in sequence, the piston 18 is gradually projected from the base body 2, and the flexible tube is bent by the pressing of the pressing body 20. .

Then, as the flexible tube bends, the tube receiver 9 rotates with respect to the base body 2 in accordance with the change in the bending angle of the flexible tube, so that the flexible tube is bent into a dogleg shape. Will be formed.

Moreover, with the rotation of the tube receiver 9, the opposing plate 36
Also rotates, and the scale 40 pointed to by the tip changes. Therefore, the bending angle of the flexible tube can be grasped based on the scale 40. For example, if the tip of the opposing plate 36 indicates the "45-degree line" scale 40d, the tube receiver 9,
The intersection angle of 9 is 90 degrees, which means that the flexible tube is bent at 90 degrees.

After that, when the work of bending the flexible tube is completed, the return valve 46 is pressed to release the hydraulic pressure in the cylinder, and the pressing body 20 is separated from the flexible tube. 9,9
Remove from the work.

As described above, in the flexible tube bending machine of this embodiment, the portion of the flexible tube to be bent can be directly attached to the apparatus main body 1, and the bending work efficiency can be improved. In addition, the flexible tube can be directly attached to the device main body 1 at a portion to be bent, so that the flexible tube is not a straight tube and can be bent at several places. A pipe receiver that can surely bend a part and supports a flexible tube according to a change in the bending angle of the flexible tube when the flexible tube is bent.
Since 9 rotates with respect to the base 2, there is an advantage that the flexible tube can be curved in a substantially V shape.

Moreover, since the pressing means 16 is of a manual type and the amount of protrusion of the piston 18 can be easily and arbitrarily adjusted according to the number of times the swinging handle 45 swings, the flexible tube can be very easily mounted. It has the advantage that it can be bent at any desired angle.

Further, since the return valve 46 for releasing the hydraulic pressure in the cylinder is provided and the piston 18 is provided with the coil spring for urging the piston 18 in the direction to be housed in the cylinder, the bending process is performed. Return valve 46 when finished
There is an advantage that the flexible tube can be opened only by pressing.

The flexible tube pressed against the tube receiver 9 by the pressing body 20 has the holding recess 11 of the tube receiver 9.
Since the movement of the flexible tube is regulated by abutting against it, there is an advantage that the flexible tube can be prevented from moving excessively when the flexible tube is bent.

Further, since the diameter of the holding recess 11 is set to be substantially the same as the maximum flexible tube of the flexible tubes to be treated, one flexible tube of any diameter can be used. Body 9
This has the advantages that it is possible to deal with the above, and it is possible to save the trouble of replacing the tube receiver 9 and to provide it at low cost.

Further, since the projection 35a is formed on the tube receiver 9, there is an advantage that it is possible to suitably prevent the flexible tube from accidentally jumping upward during the bending process.

<Other Embodiments> In the above embodiment, the recess 10 is formed in a shape similar to the letter L in a side view. However, the shape of the recess 10 is not limited to this, and in short, the flexible tube is essential. The present invention is intended as long as the flexible tube can be radially inserted into the tube receiver 9 supporting the.

The shape of the holding recess 11 is not limited to the arc shape in side view, and may be, for example, V-shape or substantially U-shape in side view.

Further, the pressing means 16 is not limited to the above embodiment, but a separate cylinder may be attached to the apparatus main body 1, and the flexible tube 28 supported at two points by the two tube receivers 9, 9. If it is possible to press between the tube receivers 9 and 9 of
The form of the pressing means does not matter.

Furthermore, in the first embodiment, the pipe receiver 9
Is a pair of symmetrical mounting holes 6 and 6
There are two sets of four holes in total, but the number of holes is not limited to this, and they may be drilled in other positions.
By increasing the number of the flexible tubes 28, it is possible to form the flexible tube 28 having various bending angles.

[0072]

As described above, since the flexible tube bending machine according to the present invention is provided with the concave portion into which the flexible tube can be inserted from the radial direction in the tube receiver that supports the flexible tube, the flexible tube bending machine is once flexible. After inserting the end portion of the tube into the main body, it is possible to directly attach the portion to which the flexible tube is bent to the main body without performing the complicated work of moving the flexible tube to the portion to be bent, The work efficiency of bending can be improved.

Moreover, since the portion to which the flexible tube is bent can be directly attached to the main body, the desired portion can be obtained even if the flexible tube is not a straight tube and is curved at several places. Bending can be reliably performed on.

Furthermore, when the flexible tube is bent, the tube receiver supporting the flexible tube rotates with respect to the base body in accordance with the change in the bending angle of the flexible tube, so that the flexible tube is bent into a substantially V shape. Can be made.

Further, in the flexible tube bending machine according to the present invention, as described in claim 2, in order to regulate the movement of the flexible tube inserted in the concave portion, a holding concave portion is continuously provided in the concave portion to secure the flexible tube. Since it is possible to support the flexible tube, it is possible to suitably prevent the flexible tube from coming off the main body during the bending work, and it is possible to perform the bending work with high accuracy.

[Brief description of drawings]

FIG. 1 is a plan view of a flexible tube bending machine showing an embodiment of the present invention.

FIG. 2 is a side view of the flexible tube bending machine according to the same embodiment.

FIG. 3 is a plan view showing a state where a flexible tube is attached to the flexible tube bending machine of the embodiment.

FIG. 4 is a plan view showing a state in which the flexible tube is bent by the pressing means of the flexible tube bending machine of the embodiment.

FIG. 5 is a plan view of a flexible tube bending machine showing another embodiment.

FIG. 6 is a side view of a flexible tube bending machine according to another embodiment.

FIG. 7 shows a state in which a flexible tube is inserted into a conventional flexible tube bending machine, in which (a) is a plan view and (b) is a side view.

FIG. 8 is a plan view and (b) is a side view showing a state in which a flexible tube is bent by a pressing means of a conventional flexible tube bending machine.

[Explanation of symbols]

1 ... Device main body, 2 ... Base body, 9 ... Pipe receiver, 10 ... Recessed portion, 11 ...
Holding recess, 16 ... pressing means, 18 ... piston, 20 ... pressing body,
23 ... Guide body

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[Procedure amendment]

[Submission date] August 19, 1999 (1999.8.1
9)

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Claims

[Correction method] Change

[Correction content]

[Claims]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

[0009]

In order to solve the above-mentioned problems, a bending machine for a flexible tube according to the present invention is provided with pipe receivers 9 and 9 for supporting the flexible tube 28 at two points in the longitudinal direction. In a flexible tube bending machine in which a pressing means 16 capable of pressing between the tube receivers 9 and 9 of the flexible tube 28 is provided in the base body 2, the pipe receiver 9 is pivotally supported by the base body 2, In the tube receiver 9,
Compared to the oblong hole that is horizontally elongated in side view,
Open one end side wider than the diameter of the flexible tube 28.
The formed recess 10 is formed and inserted into the recess 10 from the radial direction.
The flexible tube 28 on the other side of the major axis of the recess 10.
It is characterized in that it is configured to be supported by an arc portion .

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction content]

In the flexible tube bending machine according to the present invention, when the flexible tube 28 is pressed by the pressing means 16 , the other side of the major axis of the recess 10 is
Than arcuate portion of supporting the flexible tube 28, without the flexible tube 28 is moved unnecessarily, it is intended to be supported on the pipe receiving body 9.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0069

[Correction method] Delete

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0075

[Correction method] Change

[Correction content]

Further, in the flexible tube bending machine according to the present invention, the arc portion on the other side of the major axis of the recess is flexible.
Since the flexible tube is supported , it is possible to suitably prevent the flexible tube from coming off the main body during the bending work, and it is possible to perform the bending work with high accuracy.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yasuo Toyota             2-chome, Imadeja-cho, Hyogo-ku, Kobe-shi, Hyogo             24 Toyota Seiki Industry Co., Ltd. F-term (reference) 4E063 AA04 BA03

Claims (2)

[Claims] 1. A pressure can be pressed between a pipe receiver (9, 9) for supporting the flexible tube (28) at two points in the longitudinal direction and the pipe receiver (9, 9) of the flexible tube (28). Pressing means
(16) and the flexible tube bending machine provided on the base body (2), the pipe receiver (9) is pivotally supported on the base body (2) and the flexible tube (28) is inserted from the radial direction. A bending machine for a flexible tube, characterized in that a concave portion (10) that can be supported by the flexible tube is opened. 2. The flexible tube (2) when the flexible tube (28) is pressed by the pressing means (16).
The bending machine for a flexible tube according to claim 1, wherein a holding recess (11) for holding 8) is provided continuously with the recess (10).