JPH07107636A - Linear material insertion jig - Google Patents

Abstract

PURPOSE:To provide a jig for facilitating the insertion of a thinner linear material, e.g. a cord, hose or tube, into an elastic tube having a cut in the longitudinal direction. CONSTITUTION:The linear material insertion jig comprises a split linear material guide part 2 and an enlarging protrusion 3 wherein an extension part 4 is formed integrally at the split part and a grip part 5 is formed continuously to the end of each extension part 4. A pair of bodies 1a, 1b thus formed are crossed at the extension part 4 and coupled rotatably thereat by means of a pin 6. The grip part 5 is urged by a compression spring 7 in the departing direction, i.e., the direction for opening the guide part 2. When the jig is used, a predetermined linear material is set at the guide part 2 and then a worker grips the grip part 5 thus closing the guide part 2 and the enlarging protrusion 3. Under that state, the enlarging protrusion 3 is inserted into a predetermined tube having a cut and then it is moved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire rod insertion jig for inserting a wire rod such as a cord, a hose, or a tube thinner than the cord protector tube.

[0002]

2. Description of the Related Art Conventionally, in the protector tube as described above, a closed crevice is always provided along the longitudinal direction, and a wire such as a cord is inserted from the crevice to the inside of the tube, whereby the inner wire is protected. It will be protected by a tube. As a jig for inserting a wire into such a tube, a jig having an actual opening of 2-133120 is known. The jig (cover tool) includes a cylindrical portion through which a wire is passed, a tube insertion protrusion that is formed by branching from the middle of the cylindrical portion, and a flange-shaped handle formed on the upper end of the cylindrical portion. The tube insertion protrusion and the cylindrical portion are formed in two, and can be opened and closed at the generatrix of the cylindrical portion. And
By holding the wire rod in the cylindrical part in the open state and then closing it, the wire rod is held so as not to come off from the cylindrical part,
Furthermore, while inserting the above-mentioned tube insertion protrusion into the tube, by grasping the handle formed at the upper end of the cylindrical portion with fingers and moving it, the tube insertion protrusion elastically spreads the rift and The wire rod in the cylinder is inserted.

[0003]

However, in such a conventional wire rod insertion jig, since the handle having this jig is formed at the upper end of the cylindrical portion, it is difficult to grasp with fingers.
Further, working for a long time with the handle pinched has a drawback that the fingertip is considerably burdened and the hand becomes tired.

An object of the present invention is to provide a wire rod insertion jig that is easy for an operator to hold, has a small load on a fingertip, and is less likely to get tired even during long-time work.

[0005]

A wire rod insertion jig provided by the present invention is inserted into an elastic tube having a crevice that is always closed along the longitudinal direction, and the crevice is pushed open to allow relative movement in the longitudinal direction. The wire rod is inserted into the tube by being moved, and is configured to include a wire rod guide portion, a spreading projection portion, a pair of extension portions, a spring member, and a pair of grip portions. It The wire rod guide portion has a two-part structure and can be opened and closed. A cylindrical space for passing the wire rod is formed in the closed state, and the wire rod can be taken in and out in the open state. The expanding projection is formed so as to project outward and at an acute angle from the wire rod guide, and is inserted into the tube to play a role of elastically expanding the crevice. The pair of extension portions integrally extend from the end portions of the respective divided portions of the wire rod guide portion having the two-divided structure and cross each other. The rotation fulcrum portion rotatably connects the pair of extension portions at their crossed portions. The spring member urges the wire rod guide portion in the opening / closing direction, and the pair of grip portions are continuously formed at the end portions of the pair of extension portions, respectively, against the urging force of the spring member by an operator. They can be grasped in the direction of approaching each other.

According to a second aspect of the present invention, the wire rod guide portion and the expanding projection portion are formed in a two-divided structure along a common plane, and each of the expanding projection portions is formed in each split portion of the wire rod guide portion. The divided parts are integrally formed.

According to the third aspect of the present invention, the entire extension or a part thereof is formed so as to extend substantially parallel to the extension line of the expanding projection. The grip portion is formed by bending the extension portion in a direction away from the extension line of the expanding projection.

[0008]

In the invention of claim 1, the wire rod guide portion is normally opened by the urging force of the spring member. After inserting a predetermined wire rod, such as a cord, hose, or tube, here, if the operator holds the pair of grips toward each other against the urging force of the spring member, the wire rod guides close and the tubular shape is obtained. The wire rod passes through the space. When the operator holds the grip and inserts the expansion projection into the tube and moves it relatively in the longitudinal direction, the tube crevice temporarily opens and the wire rod It will be inserted inside.

Here, since the worker can perform the insertion work while grasping the grip portion, there is an effect that the fingertip is not burdened and the hand is not tired. Further, the wire rod guide portion is normally opened by the spring member, and if the wire rod is inserted into the wire rod guide portion and grasped, the wire rod is automatically passed through the wire rod guide portion, so that the operation is easy.

According to the second aspect of the invention, the wire member guide portion and the expanding projection portion are normally opened by the spring member,
By gripping the grip portion against the biasing force of the spring member, the expanding projections in the divided state are united, and the wire guide portion becomes cylindrical.

According to the invention of claim 3, since the grip portion is formed so as to be bent at a predetermined angle with respect to the extension portion, when the wire rod insertion jig is relatively moved along the longitudinal direction of the tube, the grip portion is grasped. Interference between the operator's hand holding the part and the tube can be avoided. In other words, when the operator pulls the expansion projection along the longitudinal direction of the tube,
Since the relief is provided so that the grip portion separates from the tube, the insertion work can be performed lightly without the operator's hand hitting the tube.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. The wire rod insertion jig 1 shown in FIG. 5 and FIG. 6 has a cylindrical wire rod guide portion 2, an expanding projection 3 protruding outward from the wire rod guide portion 2, and a wire rod guide portion 2 which is continuous to the rear of the wire rod guide portion 2. And a pair of grips 5 continuously formed at the end of the extension 4.

As shown in FIGS. 1 to 4, the wire rod guide portion 2
Also, the expanding projection 3 has a bisection structure along a plane including the center line of the wire rod guide portion 2, and is bilaterally symmetrical with respect to the plane. That is, the wire rod guide portion 2 is divided into the semi-cylindrical portions 2a and 2b in the opened state, and the expanding projection portion 3 is divided into the semi-projection portions 3a and 3b in the opened state. The wire guide portion 2 forms a cylindrical space when it is closed,
Behind it is a guide groove 2c having a semicircular cross section that is half open as shown in FIG.

The expanding projection 3 projects obliquely rearward from the wire rod guide portion 2 at an acute angle θ with respect to the center line O1, and when the wire rod guide portion 2 is closed, one streamlined expanding projection portion 3 is formed. It is formed. This has a substantially circular cross section, and the diameter is increased from the distal end toward the proximal end, and the distal end is rounded.

The above-mentioned extension 4 is connected to the rear of the wire rod guide 2. Each of the extension portions 4 is formed so as to continuously cross the rear end of each of the divided portions of the wire rod guide portion 2 in an X shape, and can be rotated by a pin 6 as a rotation fulcrum portion at the crossed portion. It is connected. As shown in FIGS. 3 and 4, the pair of extension portions 4 are formed with stopper portions 4a and 4b in the opening direction, respectively, and the rotation range of the extension portion 4 is defined by these stopper portions 4a and 4b. Has been done. When viewed from the side surface of FIG. 2, the extension portion 4 is bent at a predetermined angle with respect to the center line O1 of the wire rod guide portion 2 so as to be substantially parallel to the center line O2 which is the extension line of the above-mentioned expanding projection portion 3. Is formed.

The pair of grip portions 5 are integrally formed at the rear end portions of the extension portions 4. The grip portion 5 is a portion that is gripped by an operator, and is formed so as to bend at an obtuse angle with respect to the extension portion 4. That is, the pair of grips 5 are bent so as to move away from the straight line in the direction of extension of the center line O2 of the expanding projection 3, so that the operator's hand holding the grips 5 and It does not interfere with the tube to be used. Further, these grip portions 5 are formed along curves that bulge outward from each other when viewed in a plan view, and their sizes are set so that they can fit in the hands of the operator.

Further, a compression coil spring 7 as a spring means is attached to the connecting portion between the grip portion 5 and the extension portion 6 so as to urge the pair of grip portions 5 in the direction of moving them away from each other.

The grip portions 5, the extension portion 4, the semi-cylindrical portion of the wire rod guide portion 2 and the semi-projection portion of the expanding projection portion 3 as described above constitute main bodies 1a and 1b which are integral members, respectively. ing. In other words, such bodies 1a and 1b
Is rotatably connected by a pin 6 and is biased in the opening direction by a compression coil spring 7. Each end of the compression coil spring 7 is seated in a spring receiving hole 8 formed in each main body 1a, 1b. The main bodies 1a and 1b can be made of a suitable material such as metal made of aluminum or aluminum alloy, steel or a suitable alloy, or plastic, wood, or the like.

When such a wire rod insertion jig 1 is used, a predetermined wire rod, for example, a power cord or a hose or a hose or a wire is inserted in the wire rod guide portion 2 which is normally opened by the urging force of the compression coil spring 7. After accommodating tubes etc.,
As shown in FIG. 5, the operator holds the grip portion 5 on the compression coil spring 7
When the wire rod guide portion 2 and the expanding guide portion 3 are closed by squeezing against the urging force of the wire rod 3, the wire rod guide portion 2 and the expanding guide portion 3 are closed. In this state, it is used to insert a wire rod such as a power cord into a tube 10 for protecting the wire rod as shown in FIG. 7, for example. The tube 10 is made of an elastically deformable resin, and is formed by rolling strip-shaped materials so as to overlap each other, and elastic crevices 11 exist therein, and slits 12 are alternately formed to easily bend and deform. It was done.

Then, as shown in FIGS. 8 and 9, the expanding projection 3 is inserted from the end of the tube 10 while the grip 5 is gripped, and the jig 1 is arranged in the longitudinal direction of the tube 10. Is relatively moved, the expanding projection 3 elastically pushes open the overlapped crevice 11 of the tube 10, and, for example, a plurality of wire rods W passed through the wire rod guide portion 2 is inserted into the tube 10. It will be inserted inside. After the expansion projection 3 has passed, the above-mentioned crevice 11 is closed by the elasticity of the tube 10, and the above-mentioned wire W is accommodated in the tube 10.

In this embodiment, the operator can move the jig 1 or the tube 10 while gripping the grip 5, so that the work is easy and the fingertips do not get tired. Further, since the grip portion 5 is formed so as to be released in the direction away from the extension line of the projection portion 3, interference between the hand of the operator who grips the grip portion 5 and the tube 10 is avoided, and the insertion work can be performed smoothly. .

Incidentally, instead of the above embodiment, FIG.
It is also possible to take various forms as shown in (D). With respect to these, the same reference numerals are given to the members or portions corresponding to those in the above-described embodiment, and detailed description thereof will be omitted.

Further, as shown in FIG. 11, the expanding projection 23 is formed on one of the divided portions of the wire rod guide portion 2.
In other words, the protrusion 23 does not have a two-part structure,
The jig 1 can also be configured to project at an acute angle along the rotation plane.

Further, it is needless to say that the present invention can be implemented in various modified forms based on the knowledge of those skilled in the art, such as changing the compression coil spring 7 to a torsion spring.

[Brief description of drawings]

FIG. 1 is a perspective view of a wire rod insertion jig that is an embodiment of the present invention.

FIG. 2 is a side view thereof.

FIG. 3 is a plan view thereof.

FIG. 4 is a plan view seen from the side opposite to FIG.

FIG. 5 is a plan view showing a state in which the wire rod insertion jig is closed.

FIG. 6 is a front view thereof.

FIG. 7 is a perspective view showing an example of a tube into which a wire rod is inserted.

FIG. 8 is a plan view showing a state where a wire rod is inserted.

FIG. 9 is a side view showing a state where the wire rod is inserted.

FIG. 10 is a side view showing various forms of a wire rod insertion jig.

FIG. 11 is an explanatory diagram of a modified example.

[Explanation of symbols]

 1 wire rod insertion jig 2 wire rod guide parts 3 and 23 projection part for expansion 4 extension part 5 grip part 6 pin (rotation fulcrum part) 7 compression coil spring (spring means) 10 tube 11 tear

Claims (3)

[Claims] 1. By being inserted into an elastic tube having a crevice that is always closed along the longitudinal direction and being moved relatively in the longitudinal direction while pushing the crevice open.
A wire rod insertion jig for inserting a wire rod into the tube, which can be opened and closed by a two-part structure, and in the closed state, a cylindrical space for passing the wire rod is formed, and in the open state, the wire rod is inserted. An openable and retractable wire rod guide part, and an expansion projection that is formed so as to project outward and at an acute angle from the wire rod guide part and is inserted into the tube to elastically spread the crevice. Part, a pair of extension parts that extend integrally from the end part of each divided part of the wire rod guide part of the two-part structure and cross each other, and a rotation that rotatably connects the extension part with the crossed part. A fulcrum portion, a spring member that urges the wire rod guide portion in the opening direction, and a spring member that is continuously formed at each end portion of the pair of extension portions and that is approached by an operator against the urging force of the spring member. A pair of grips that can be gripped in the direction When, the wire insertion jig which is characterized in that it comprises a. 2. The wire rod guide portion and the expansion projection portion are formed in a two-divided structure along a common plane, and the wire rod guide portion is divided into two parts. The wire rod insertion jig according to claim 1, wherein each of the wires is integrally formed. 3. The whole or a part of the pair of extension portions is formed so as to extend substantially parallel to an extension line of the expanding projection portion, and the grip portion has the extension portion with respect to the extension portion. The wire rod insertion jig according to claim 1 or 2, which is formed by bending in a direction away from an extension line of the opening projection.