JPH0544064U - Coated cutter - Google Patents

Abstract

(57) [Summary] [Structure] A plurality of holding portions 4 and 5 for the plurality of cladding tubes 1 and 2 are provided. Of the holding spaces S1 and S2 of the plurality of holding portions 4 and 5, respectively, the finger protection guard 15 is provided so as to be movable between one holding space S1 and a remaining holding space S2. is there. In order to configure the finger protection guard 15, the guard main body 16 is covered with one of the plurality of covering tubes 1 and 2 relative to the corresponding one of the plurality of holding spaces S1 and S2. Pushed by the tube, in the remaining holding space S2, S1,
The cutter blade 7 is attached so that it can freely project to a position where it cannot operate. [Effect] When cutting the coating by rotating the holding portion around the coating tube, it is possible to provide a coating cutter which can be improved in workability since it does not require labor for work and is excellent in safety.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a coating cutter that cuts a coating on a cladding tube.

[0002]

[Prior Art]

 Conventionally, in the above-mentioned covered cutter, a C-shaped holding portion for relatively inserting and holding the covering pipe in the radial direction is provided, and the covering pipe is projected to the holding space of the holding portion. A cutter blade is provided, and a handle is provided for rotating the holding portion, which holds the coating tube, around the coating tube together with the cutter blade.

Further, in this structure, the rotating operation of the holding portion is performed with the handle held.

[0004]

[Problems to be solved by the device]

 However, according to the above configuration, when the holding portion is rotated around the cladding tube, since the rotating operation is performed while the handle is gripped, the handle should always be held once in the middle before rotating once around the cladding tube. There was a drawback that workability was poor because the grip had to be changed.

It is an object of the present invention to solve the above-mentioned conventional drawbacks and to provide a coating cutter that can be rotated with good workability when the holder is rotated around the coating tube to cut the coating.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the coated cutter according to the present invention is provided with a plurality of holding portions for respectively radially inserting and holding a plurality of coating pipes, and holding the plurality of holding portions respectively. A cutter blade for cutting pipe coating is selectively provided in one of the spaces, and can be moved between a state in which it projects into one of the holding spaces and a state in which it projects into the remaining holding space. In order to form the finger protection guard, one of the plurality of covering pipes is relatively inserted into a corresponding one of the holding spaces. It is characterized in that it is pushed by the cladding tube and is attached so as to be able to project to a position where the cutter blade cannot act in the remaining holding space, and its action and effect are as follows.

[0007]

[Action]

 That is, since it is configured as described above, one of the plurality of holding parts, for example, the pipe coating cutting cutter blade is projected in the first holding space of the first holding part, When the first covering tube is relatively fitted into the first holding section and the first holding section is rotated around the first covering tube, the cutter blade is rotated integrally with the first holding section, and the covering is wrapped around the entire circumference of the tube. Can be cut over.

In this case, since the second holding portion or the like for holding the second covering pipe or the like is provided separately from the first holding portion, the second holding portion or another holding portion is 1 Can be used as a rotation operation part of the holding part.

Moreover, since the second holding portion and the like form a holding space for inserting the second covering pipe and the like, a finger can be inserted into the holding space and the first holding portion can be rotated by the finger. It becomes possible to operate, and when rotating the first holding part around the cladding tube, it is not necessary to grip the rotating operation part as in the conventional case.

Further, there is provided a finger protection guard that is movable between a state in which it projects into one of the plurality of holding spaces and a state in which it projects into the remaining holding spaces. (1) When the cladding tube is fitted into the first holding space, the guard body is pushed by the cladding tube so as to project to the position where the cutter blade cannot operate in the second holding space. As described above, even when the finger is inserted into the second holding space and is rotated by the finger, the finger does not come into contact with the cutter blade and the finger may be injured by the cutter blade. Disappear.

In addition, the pipe blade for cutting the blade is projected into the second holding space of the second holding portion, and the second coating pipe is relatively fitted into the second holding portion. Alternatively, by using another holding part as a rotation operating part and rotating the second holding part around the second covering pipe, the covering of the second covering pipe can be cut over the entire circumference of the pipe. In this way, the third cladding tube and the like can be cut by the same operation. Also in this case, the guard body is pushed by the second cladding tube and projects to the position where the cutter blade cannot operate in the remaining holding space. Will not be injured.

[0012]

[Effect of the device]

 Therefore, when the holder is rotated around the cladding tube to cut the coating, it is possible to rotate the finger with the fingers, and there is no need to grip the rotating operation unit as in the conventional case. By changing the inner diameter, it becomes possible to cope with the cutting of the coating of multiple pipes with different diameters.As a result, the work can be done with less effort and the workability can be improved. Since the cutter blade does not injure a finger even when it is inserted and rotated, it is possible to provide a coated cutter with excellent safety.

[0013]

【Example】

 Next, an embodiment of the coated cutter according to the present invention will be described with reference to the drawings. FIGS. 1 and 2 show a coating cutter for cutting the coating of the first flexible pipe 1 whose outer surface is coated with resin and the coating of the second flexible pipe 2 having a diameter larger than this (both are examples of coating pipes). 3 is shown.

To form the covering cutter 3, the first and second flexible pipes 1 and 2 are C-shaped for holding the first and second flexible pipes 1 and 2 in a radial direction, respectively. A pair of the first and second holding portions 4 and 5 are provided at the left and right ends of the block-shaped main body portion 6 in a state where they are opened outwardly from each other. A tube blade 7 for cutting a pipe covering, which is selectively movable with respect to S2, is provided on the main body 6 so as to be movable left and right, and protrudes into the first holding space S1 and into the second holding space S2. A finger protection guard 15 that is freely movable between the two states is provided along the moving direction of the cutter blade 7.

A bolt 8 (for fixing the cutter blade 7 projecting and moving relative to the holding space of one of the first and second holding parts 4 and 5 at the projecting position to the body part 6 ( An example of a fixing tool) is provided.

The first and second holding portions 4 and 5 are formed so that their inner diameters match the diameters of the first and second flexible pipes 1 and 2, and therefore, the second holding portion 5 side. Has an inner diameter larger than that of the first holding portion 4. The ends of both holding portions 4 and 5 are formed in an outwardly open shape so that the first and second flexible pipes 1 and 2 can be easily fitted in the radial direction. Reinforcing ribs 9 are formed on the outer circumferences of the holding portions 4 and 5 in the widthwise central portion.

As shown in FIGS. 3 and 4, the cutter blade 7 has triangular blades 10 formed on both left and right ends of a thin plate so as to face each other outward in the longitudinal direction, and a female screw 11 is formed so as to penetrate between the blades. It becomes.

A square hole 12 is formed in a substantially central portion of the covered cutter body 6 in the height direction so that the holding space S1 of the first holding portion 4 and the holding space S2 of the second holding portion are in communication with each other. Further, a bolt mounting groove 13 reaching the square hole 12 is formed on the upper surface side. Then, at the same time when the cutter blade 7 is inserted into the square hole 12, the bolt 8 is inserted into the groove 13 and the tip of the bolt is screwed into the female screw 11 of the cutter blade 7, so that the first holding space S1 is inserted. The cutter blade 7 is slid from the position where one blade 10 is projected to the position where the other blade 10 is projected with respect to the second holding space S2.

The sliding movement of the cutter blade 7 is performed while the fastening force of the bolt 8 with respect to the cutter blade 7 is adjusted to be weak so that the cutter blade 7 floats in the square hole 12. The length of the cutter blade 7 is formed to be approximately half the square hole 12 so that the blade 10 does not exist in the other space when the blade 10 is projected into the one space. When the cutter blade 7 is fixed in a position protruding into one of the spaces, the fastening force is adjusted to be stronger and the cutter blade 7 is pressed and fixed to the cutter body 6. In order to ensure the positioning of the cutter blade 7 at the protruding position, a bolt insertion hole 14 for inserting the tip of the bolt 8 is formed at both ends of the groove 13 and at the bottom of the square hole 12. I am doing it.

The finger protection guard 15 is composed of a rectangular guard body 16 longer than the square hole 12 and a long hole 17 for inserting a bolt formed therein. The main body 16 is loosely fitted into the square hole 12 so that the tip of the bolt 8 is inserted into the long hole 17 so that either one of the first and second flexible pipes 1 and 2 is held first and second. As the guard body 16 is pushed by the flexible tube and is fitted into the corresponding one of the spaces S1 and S2, it projects into the other second and first holding spaces S2 and S1. Configured. Further, the length of the guard body 16 is set so that the end portion of the guard body 16 projects beyond the tip portion of the blade 10, that is, it projects to a position where the cutter blade 7 cannot operate. is there.

The usage of the coating cutter 3 is as shown in FIGS. That is, the cutter blade 7 is slid to project the blade 10 into the first holding space S1, and the bolt 8 is fastened to fix the blade 10 at the projecting position. The cover can be cut off by inserting the first holding portion 4 from the radial direction, inserting a finger into the second holding space S 2 and rotating the first holding portion 4 around the first flexible tube 1 once. ..

In this case, for example, even if the blade 10 is erroneously projected into the second holding space S2, the first holding portion 4 is fitted into the first flexible tube 1 and at the same time the second holding space S2 is held. Since the guard main body 16 projects beyond the blade 10, even if a finger is inserted into the second holding space S2, the tip of the blade 10 cannot be reached by the guard main body 16 and the finger is injured by the blade 10. There is no such thing.

When cutting the coating of the second flexible pipe 2, the blade 10 may be made to protrude into the second holding space S2, and thereafter, the same operation as in the case of the first flexible pipe 1 may be performed.

[Other Embodiment] The inner diameters of the first and second holding portions 4 and 5 may be formed to have the same diameter.

The fixture may be other than the bolt 8.

The cutter blade 7 may be one that is fixed to the main body portion 6 instead of being slidably provided, or may be one that protrudes into both the holding spaces S1 and S2.

As shown in FIGS. 5 and 6, first to third holding portions 4, 5 and 18 are provided, and they are arranged at equal intervals in the circumferential direction. The cutters 7 protruding into the holding spaces S1, S2, S3 of 18 may be provided in the respective holding portions, and the finger protecting guard 15 may be provided in the respective holding portions 4, 5, 18.

The cutter blade 7 is fixed to the main body portion 6, and the guard 15 is fitted into the grooves 20 formed in the main body portion 6 at equal intervals in the circumferential direction, so that the holding spaces S1, S2, S3 are respectively provided. You can move in and out freely. The respective guards 15 are in contact with each other in the central portion of the main body portion 6, and the contact portions are formed in a triangular shape. The guard 15 is biased by a spring 21 so as to project toward the holding spaces S1 to S3.

In the above structure, when the first flexible pipe 1 is fitted into any one of the holding portions, for example, the third holding portion 18, the guard 15 protruding into the third holding portion 18 is While being pushed by the first flexible pipe 1 and pushing the remaining guard 15, they are projected into the holding spaces S1, S2 of the remaining holding portions, and the cutter blade 7 acts in these holding spaces S1, S2. I can't.

As shown in FIGS. 7 and 8, when the guard 15 is formed in a triangular cam shape and a flexible pipe is fitted into one holding portion, the flexible pipe pushes one convex portion of the guard 15. Alternatively, the remaining two convex portions may be configured to project into the remaining holding space.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a plan view of a coating cutter.

FIG. 2 is a plan view of the coating cutter.

FIG. 3 is a vertical sectional view of the coating cutter.

4 is a sectional view taken along the line IV-IV in FIG.

FIG. 5 is a plan view of another embodiment.

6 is a sectional view taken along line AA of FIG.

FIG. 7 is a plan view of another embodiment.

8 is a sectional view taken along line BB of FIG.

[Explanation of symbols]

 1 1st coating pipe 2 2nd coating pipe 4 1st holding part 5 2nd holding part 7 Cutter blade 8 Fixing tool S1 1st holding space S2 2nd holding space 15 Finger protection guard 16 Guard main body

Claims (1)

[Scope of utility model registration request] 1. A holding portion (4) for holding a plurality of cladding pipes (1), (2) separately by inserting them in a radial direction relative to each other.
A plurality of (5) are provided, and one of the holding spaces (S1) and (S2) of each of the plurality of holding portions (4) and (5) is selectively provided with a cutter blade (7) for cutting a pipe, One of the holding spaces (S1), (S2)
1) is provided with a finger protection guard (15) that is movable between a state in which it protrudes into the remaining holding space (S2) and a state in which the finger protection guard (15) comprises With the relative fitting of any one of the cladding tubes (1), (2) of the above into the corresponding one of the holding spaces (S1), (S2), the guard body (16) The coated cutter which is pushed and is attached so as to project to a position where the cutter blade (7) cannot act within the remaining holding spaces (S2), (S1).