JPH0544065U - Coated cutter - Google Patents

Abstract

(57) [Summary] [Structure] A plurality of arm pairs 3, 14, 21 are pivotally connected. The arm pair 1 is formed such that a finger insertion portion is formed on the other arm pair side in a state where the covering tube is sandwiched by a pair of holding portions of the plurality of arm pairs 13, 14, 31.
3, 14, 21 are molded. And, a pipe-covering cutter blade is provided on the pivot support connecting portion 9. [Effect] When cutting the coating by rotating the holding portion around the coating tube, it is possible to provide a coating cutter having improved workability and 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, a coated cutter according to the present invention is provided with a pivot support connecting portion for pivotally supporting a plurality of pairs of arms swingable in the perspective direction to each other. A holding portion for sandwiching the cladding tube is formed in each pair, and in a state where the cladding tube is sandwiched by one holding portion of the plurality of arm pairs, on the other arm pair side, A pipe-covering cutter blade that is formed so that the arm pair is formed so that a finger insertion portion for rotating the holding portion around the axis of the covering pipe is formed, and that the arm is projectable into the holding space of each holding portion. Is provided at the pivotal support portion, and the operation and effect thereof are as follows.

[0007]

[Action]

 In other words, with the above-described configuration, with the first holding portion formed in one of the plurality of arm pairs, the pipe coating cutting blade is projected in the holding space. When the first cladding tube is sandwiched by the first holding portions, the holding portion of the remaining arm pair, for example, the second holding portion side, rotates the first holding portion around the axis of the first cladding tube. The finger insertion part is formed, and by inserting a finger into this finger insertion part and rotating the first holding part in the above direction, the cutter blade rotates integrally with the first holding part, and the first coating The tube coating can be cut around the entire circumference of the tube.

Further, when the pipe coating cutting cutter blade is projected in the holding space of the second holding part and the second covering pipe is sandwiched by the second holding part, the holding parts of the remaining arm pairs, For example, since a finger insertion part for rotating the second holding part around the axis of the second covering pipe is formed on the first holding part side, it is the same as when cutting the first covering pipe. The coating of the second cladding tube can be cut by the method described above. In this way, the third cladding tube and the like can be cut by the same operation.

[0009]

[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 deal 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 fingers are inserted into the finger insertion part, it was possible to prevent finger injuries due to the cutter blade, and it was possible to provide a covered cutter with excellent safety.

[0010]

【Example】

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

The covering cutter 3 is composed of a pair of arm pairs 13 and 14 pivotally supported in a concentric manner so as to be swingable in the perspective direction. Specifically, specifically, the pair of arm members 6 are connected to each other. At the intermediate portion in the longitudinal direction so as to be swingably connected to each other, and between the arm members 6 at positions closer to one end side than the pivot support connecting portions 9 thereof, the first flexible pipe 1 And a second holding portion 5 for holding a second flexible tube 2 having a diameter different from that of the first flexible tube 1 between the other end side portions. Has been formed.

Both ends of the pair of arm members 6 are formed in a ring shape, respectively, so that either one of the first and second holding portions 4 and 5 holds the flexible tube corresponding to the holding portion. In this state, the two rings on the other holding portion side are overlapped with each other to form the finger insertion portion 11 for rotating the one holding portion around the axis of the flexible tube.

A pipe-covering cutter blade 7 is attached to the pivotal support portion 9 so as to project into the holding spaces S 1 and S 2 of the first and second holding portions 4 and 5. The cutter blade 7 is formed by forming triangular blades 10 on both left and right ends of a thin plate so as to face each other outward in the longitudinal direction, and is fixed to a pin 8. In addition, the blades 10 at both ends are directed toward the center of the flexible tube in the operating state, and therefore the cutter blade 7 has a shape in which the axes of the blades 10 at both ends are bent to each other.

The method of using the coating cutter 3 is as follows. The first flexible pipe 1 is arranged in the opened first holding part 4, and both arm members 6 on the second holding part 5 side are brought close to each other to perform a closing operation, so that the first holding part 4 makes the first covering pipe. Hold 1 A finger is inserted into the finger insertion portion 11 formed on the second holding portion 5 side to rotate the first holding portion 4 around the first flexible tube 1.

In this case, since the finger is inserted into the finger insertion space and the first holding portion 4 is rotated, the finger 10 does not injure the finger.

When the coating of the second flexible pipe 2 is cut, the second flexible pipe 2 is arranged on the second holding portion 5 in the opened state, and the same operation as that of the first flexible pipe 1 is performed below. To do.

As shown in FIGS. 11 to 13, six arm members 6 are pivotally connected to each other to form three arm pairs 13, 14, 21 and the cutter blade 7 is attached to the pivotal connection portion 9. May be provided. The cutter blade 7 is a round blade cutter. The arm members 6 are brought into contact with each other at their base end portions, and a constant gap S is formed in the circumferential direction in the state where all the base end portions are brought into contact with each other. When a flexible tube is inserted into one of the holding portions 4, 5 and 20, the insertion portion 11 is formed on the other arm opposite side.

[Other Embodiments] As shown in FIGS. 4 to 6, the end portions of both arm members 6 are formed in an R shape so as to face outward, and either of the first and second holding portions 4, 5 Alternatively, the ring-shaped finger insertion portion 11 may be formed on the other holding portion side while the flexible tube corresponding to the holding portion is held. In this case, as shown in FIG. 7, locking protrusions 12 are formed on the ends of both arm members 6 in advance, and the both ends are engaged with each other so that the two ends are separated during the rotation operation. Try not to.

In the sandwiched state as described above, the ring-shaped finger insertion portion 11 is formed on one holding portion side. As shown in FIGS. May be formed in an R shape so as to face inward. In this case, if the R portion is set so that the diameter of the finger insertion portion 11 is slightly smaller than the diameter of the finger, the arm members 6 on the holding portion side tend to approach each other when the finger is inserted, and the clamping force for the flexible tube is increased. As a result, it is possible to prevent the end portions of the arm members 6 from coming off from each other.

As shown in FIGS. 11 to 13, the six arm members 6 are pivotally connected to each other to form three arm pairs 13, 14, and 21, and the cutter blade 7 is attached to the pivotal connection portion 9. May be provided. The cutter blade 7 is a round blade cutter. The arm members 6 are brought into contact with each other at their base end portions, and a constant gap S is formed in the circumferential direction in the state where all the base end portions are brought into contact with each other. When the flexible tube is inserted into one of the holding portions 4, 5, and 20, the insertion portion 11 is formed on the other arm pair side.

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 configurations 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 showing an operating state of the coating cutter.

FIG. 3 is a plan view showing an operating state of the coating cutter.

FIG. 4 is a plan view of a covering cutter according to another embodiment.

FIG. 5 is a plan view showing an operating state of a coated cutter according to another embodiment.

FIG. 6 is a plan view showing an operating state of a coated cutter according to another embodiment.

FIG. 7 is a plan view of the main part

FIG. 8 is a plan view of a coating cutter according to another embodiment.

FIG. 9 is a plan view showing an operating state of a coated cutter according to another embodiment.

FIG. 10 is a plan view showing an operating state of a coated cutter of another embodiment.

FIG. 11 is a plan view showing an operating state of a coated cutter according to another embodiment.

FIG. 12 is a plan view showing an operating state of a coated cutter of another embodiment.

FIG. 13 is a plan view showing an operating state of a coated cutter according to another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 coating pipe 2 coating pipes 4, 5, 20 holding part 7 cutter blade 9 pivot support part 11 finger insertion part 13, 14, 21 arm pair S1, S2, S3 holding space

Claims (1)

[Scope of utility model registration request] 1. A pair of arm pairs (13), (14) and (21) swingable in the perspective direction are provided with a pivot support connecting portion (9) that pivotally supports a plurality of them in a concentric manner. Pair (13), (1
Holding portions (4), (5), (20) for sandwiching the cladding tubes (1), (2) are formed between 4) and (21) respectively, and the plurality of arm pairs (13), While holding the covering pipe (1) between a pair of holding portions of (14) and (21), the holding portion (4) is covered with the covering pipe (1) on the other arm pair (14) side. 1) A finger insertion part (1) for rotating around the axis.
1), the pair of arms (13), (14),
(21) is molded, and a pipe-covered cutter blade (7) is provided which can project into the holding spaces (S1), (S2), (S3) of the holding portions (4), (5), (20). A coating cutter provided at the pivotal connection (9).