JP3680753B2 - Wire cutting jig - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a jig for cutting a plurality of electric wires having different types, thicknesses, colors, and the like into substantially the same length.
[0002]
[Prior art]
A wire harness used for connecting various electrical components mounted on an automobile or the like is configured by bundling a large number of electric wires, and a connector for connection is attached to the terminal. The wires that make up the wire harness and the terminals fixed to the tips of the wires are designated in advance in the connector housing, and are color-coded for each wire or marked at regular intervals to prevent incorrect wiring. Is printed. When inserting the terminal fixed to the tip of each wire into the connector housing, the operator inserts the terminal into the designated place (cavity) of the connector housing while referring to the wiring diagram of the work instruction sheet. Yes.
[0003]
In order to simplify the operation of fitting the terminals into the connector housing, the applicant arranges a sample obtained by cutting a wire that is actually fitted in a jig that holds the connector housing, and the wire sample and the wire harness. A method of fitting a terminal fixed to the tip of each electric wire into a cavity indicated by the electric wire sample while comparing with the electric wire constituting the wire is proposed (patent pending, unpublished).
[0004]
[Problems to be solved by the invention]
The length of the wire sample is about several tens of millimeters, which is too short to be cut using a machine, and is currently being manually cut by a worker using a ruler and a nipper. For this reason, there is a problem that work is very troublesome and it is difficult to make the lengths uniform.
[0005]
The present invention has been made to solve the above problems, and an object of the present invention is to provide a wire cutting jig suitable for cutting a large number of electric wires with the same length.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, an electric wire cutting jig according to the present invention includes a main body member having a plurality of first through holes for fitting electric wires, and the same number of second through holes facing the first through holes. A sliding member held inside the main body member so as to be slidable in a direction substantially orthogonal to the fitting direction of the electric wire, and the sliding member substantially orthogonal to the fitting direction of the electric wire An elastic member biasing in the direction, and the same number of third through-holes as opposed to the first through- holes , and a detachable top plate member on the upper surface of the main body member, wherein the top plate member is The thickness of the top plate member in the direction in which the electric wire is fitted and the total length from the upper surface of the main body member to the electric wire tip contact position in the state of being attached to the main body member is the length of the electric wire to be cut , etc. It is characterized by new things.
[0007]
In the above configuration, the top plate member is preferably separable into at least two parts.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described. The structure of the wire cutting jig in this embodiment is shown in FIG.
[0009]
As shown in FIG. 1, the wire cutting jig of the present embodiment is a plate-like slide that is slidably held by a substantially box-shaped main body member 10 and a guide rail portion 11 formed on the main body member 10. A spring (elastic member) that is provided between the member 20 and the guide rail portion 11 of the main body member 10 and the sliding member 20 and biases the sliding member 20 in the direction of pushing the sliding member 20 out of the main body member 10 from the guide rail portion 11. ) 21 and a top plate member 30 that can be attached to and detached from the upper surface 16 of the main body member 10. The top plate member 30 is divided into a plurality (three in this embodiment).
[0010]
The top surface 16 of the main body member 10 has an inner diameter slightly larger than the outer diameter of the wire to be cut, and positions the plurality of first through holes 12 arranged in a predetermined positional relationship and the top plate member 30. Therefore, the second fitting for fitting with the first fitting hole 13 for fitting with the boss 31 provided in the top plate member 30 and the engaging pin 14 for regulating the movement amount of the sliding member 20 is provided. A hole 15 is formed.
[0011]
The sliding member 20 is formed with a second through hole 22 that is arranged in the same positional relationship as the arrangement of the first through holes 12 and has substantially the same inner diameter as the first through holes 12. In addition, a predetermined position with respect to the second through hole 22 is long in the sliding direction of the sliding member 20 so that the positional relationship is relatively the same as the position of the second fitting hole 15 with respect to the first through hole 12. A groove 23 is formed, and the slidable amount of the sliding member 20 is regulated by engaging with the engaging pin 14.
[0012]
The top plate members 30 are arranged so as to have the same positional relationship as the arrangement of the first through holes 12 with the upper surface 16 of the main body member 10 being mounted, and have the same inner diameter as the first through holes 12. Three through holes 32 are formed.
[0013]
Next, the assembled state of the wire cutting jig of the present embodiment is shown in FIG. As shown in FIG. 2, in a natural state in which no electric wire is inserted, the sliding member 20 protrudes from the main body member 10 to the full limit of slidability due to the biasing force of the spring 21. In this state, the thickness of the top plate member 30 in the wire insertion direction, such that the total length from the upper surface 16 of the body member 10 the wire tip to the contact position becomes equal properly the length of the wire to be cut, The height of the main body member 10 and the thickness of the top plate member 30 are set in advance. Moreover, since the top plate member 30 is detachable with respect to the main body member 10, if the several top plate member 30 from which thickness differs is prepared, an electric wire can be cut | disconnected to various length. Further, a plurality of top plate members 30 may be used in an overlapping manner. Further, by changing the thickness for each portion of the separated top plate member 30, it is possible to simultaneously cut the wire groups having different lengths.
[0014]
Moreover, the AA cross section in FIG. 2 and the BB cross section are shown to Fig.3 (a) and FIG. 4, respectively. As shown in FIGS. 3A and 4, in this embodiment, the sliding member 20 is protruded to the outside of the main body member 10 by the urging force of the spring 21 so that the electric wire W can be inserted. In this state, the movable amount of the main body member 10 and the sliding member 20 is set so that the first through hole 12, the second through hole 22, and the third through hole 32 are aligned.
[0015]
Next, the usage method of the wire cutting jig of this embodiment is demonstrated. As shown in FIG. 5, with the top plate member 30 mounted on the upper surface of the main body member 10, the electric wire W is inserted from the third through hole 32 and pushed in until the tip of the electric wire W comes into contact with the bottom of the main body member 10. . When the predetermined number of electric wires W have been fitted, the sliding member 20 is pushed inside the main body member 10 against the urging force of the spring 21, and the electric wire W is sandwiched between the main body member 10 and the sliding member 20. In a state where a shearing force is applied to the electric wire W as shown in FIG. 3B and the electric wire W is held so as not to move up and down in the insertion direction. The protruding portion is cut with a nipper or the like so as to be substantially flush with the top plate member 30. At this stage, the electric wires W are trimmed to substantially the same length.
[0016]
Next, the top plate member 30 is removed from the main body member 10 in order as shown in FIG. As shown in FIG. 7, when all the top plate members 30 are removed, the electric wires W are held by the main body member 10 in a state of protruding from the upper surface 16 of the main body member 10 by the thickness of the top plate member 30. . As described above, the electric wire W can be held between the main body member 10 and the sliding member 20 by pushing the sliding member 20 into the main body member 10 against the biasing force of the spring 21. it can. Accordingly, by handling the main body member 10 so as to push the sliding member 20 into the inner side of the main body member 10, the cut electric wire W is transported to the next step while preventing the cut electric wire W from being dissipated. Is possible. In the next step, the portion of the electric wire W that protrudes outside the main body member 10 is pinched using tweezers or the like, and the cut electric wire is attached to a predetermined position, so that the work efficiency can be improved.
[0017]
In the above description, the inner diameters of the first through holes 12 and the like are not particularly mentioned. However, all the first through holes 12 and the like may be unified to the same inner diameter, or partially separated, for example, The inner diameter may be changed for each portion of the top plate member 30. In the latter case, electric wires having different thicknesses can be cut into almost the same length.
[0018]
Moreover, although it does not specifically limit about each material of the main body member 10, the sliding member 20, and the top-plate member 30, Since the sliding member 20 slides the guide rail part 11 of the main body member 10, the friction coefficient between both is sufficient. It is preferable to use a combination of materials that are small and have excellent wear resistance. For example, the material of the main body member 10 and the top plate member 30 may be polyacetal resin, and the material of the sliding member 20 may be stainless steel.
[0019]
Furthermore, the use of the cut electric wire W is not particularly limited, and as described in the description of the conventional example, it is not only a sample for assembling a wire harness but also a short electric wire for short-circuiting an unused terminal in a connector or the like. It can also be used as In that case, you may make it use the main body member 10 and the sliding member 20 as an electric wire holder, and peel off the insulation coating of the part which protrudes outside the main body member 10 among the electric wires W. In particular, a bottom plate member (not shown for obviousness) corresponding to the top plate member 30 is mounted on the lower surface of the main body member 10 and the cutting operation similar to the above is performed, so that the electric wires W are connected from both the upper and lower surfaces of the main body member 10. You may make it project, and also may peel off the insulation coating of both projecting parts.
[0020]
Further, in the above-described embodiment, the first through hole 12, the second through hole 22, and the third through hole 32 are in a straight line in a state where the sliding member 20 protrudes outside the main body member 10 by the biasing force of the spring 21. Therefore, when the electric wire W is inserted into each of the through holes 12, 22, 32, it is not necessary to touch the sliding member 20. However, when the electric wire W is cut, the sliding member 20 is not necessary. Is pushed into the inside of the main body member 10 to hold the electric wire W between the main body member 10 and the sliding member 20, and the electric wire cutting operation must be performed with one hand. On the other hand, contrary to the above-described embodiment, the first through hole 12, the second through hole 22 and the sliding member 20 are pushed into the main body member 10 against the biasing force of the spring 21. You may comprise so that the 3rd through-hole 32 may align on a straight line. In that case, when the operator removes his / her hand from the sliding member 20, the electric wire W is automatically sandwiched between the main body member 10 and the sliding member 20 by the biasing force of the spring 21. However, when the electric wire W is cut with a nipper or the like, both hands can be released. Can be used to make cutting work easier. Therefore, almost the same effect is obtained in any case.
[0021]
【The invention's effect】
As described above, according to the electric wire cutting jig of the present invention, a body member having a plurality of first through-hole for fitted the wire, the second through-holes of the same number opposed to the first through hole A sliding member held inside the main body member so as to be slidable in a direction substantially orthogonal to the fitting direction of the electric wire, and the sliding member substantially orthogonal to the fitting direction of the electric wire An elastic member that urges in the direction of movement, and the same number of third through-holes as opposed to the first through- holes , and a detachable top plate member on the upper surface of the main body member, while wearing said main body member, the thickness of the top plate member in a fitted direction of the electric wire, the total length of the body member top wire tip to the contact position, the length of the wire to be cut and wherein the equal correct.
[0022]
That is, the top plate member is attached to the main body member, and the sliding member is pushed into the main body member against the urging force of the elastic member, so that the first through hole, the second through hole, and the third through hole respectively. Install the wires in a straight line. When the hand is released from the sliding member in this state, the sliding member tries to protrude outside the main body member by the biasing force of the elastic member, and the electric wire is clamped between the main body member and the sliding member, and the electric wire cutting jig Held by. And a several electric wire can be easily cut | disconnected to substantially the same length by cut | disconnecting the electric wire part which protrudes from the upper surface of the top-plate member of an electric wire cutting jig with a nipper etc. Moreover, since the top plate member is detachable from the main body member, a plurality of top plate members having different thicknesses may be prepared in accordance with the length of the electric wire to be cut. Further, a plurality of top plate members may be used in an overlapping manner. Furthermore, since each electric wire is clamped between the main body member and the sliding member even after cutting, the main body member from which the top plate member has been removed can be used as an electric wire holding jig.
[0023]
Furthermore, by making the top plate member separable into at least two parts, it becomes possible to use a top plate member having a partially different thickness, cutting two sets of electric wire groups each having a different length, Can be held. Alternatively, if the top plate member is separated into a plurality of parts, the electric wires are removed in order from the cut-out portion, and the uncut or unused portion of the top plate member is left attached to the main body member, forgetting to cut a specific electric wire In such a case, a portion where the top plate member has not yet been removed can be used, and a new electric wire can be fitted into the portion and cut. That is, after cutting the wire, it is very difficult (practically impossible) to reattach the top plate member once removed while leaving the cut electric wire. It has the significance of leaving it attached to the body member.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a configuration of an embodiment of a wire cutting jig of the present invention.
FIG. 2 is a perspective view showing a state in which the wire cutting jig in the embodiment is assembled.
3 is a diagram showing a configuration of an AA cross section in FIG. 2. FIG.
4 is a diagram showing a configuration of a BB cross section in FIG. 2. FIG.
FIG. 5 is a diagram for explaining a method of using the wire cutting jig in the embodiment, showing a state in which an electric wire is inserted from a third through hole of the top plate member.
FIG. 6 is a diagram for explaining a method of using the wire cutting jig in the embodiment, showing a state in which the top plate members are sequentially removed after the wire is cut.
FIG. 7 is a diagram for explaining a method of using the wire cutting jig in the embodiment, and shows a state where the main body member and the sliding member are used as an electric wire holder after the top plate member is removed.
[Explanation of symbols]
10: body member 11: guide rail portion 12: first through hole 13: first fitting hole 14: engagement pin 15: second fitting hole 16: upper surface 20: sliding member 21: spring 22: second penetration Hole 23: Groove 30: Top plate member 31: Boss 32: Third through hole

Claims (2)

A main body member having a plurality of first through holes for fitting electric wires;
A sliding member having the same number of second through holes facing the first through hole and held inside the body member so as to be slidable in a direction substantially perpendicular to the fitting direction of the electric wire;
An elastic member that urges the sliding member in a direction substantially orthogonal to the fitting direction of the electric wire;
The same number of third through holes as opposed to the first through holes , and a removable top plate member on the upper surface of the main body member;
In a state where the top plate member is mounted on the main body member, the total thickness of the top plate member in the fitting direction of the electric wire and the length from the upper surface of the main body member to the electric wire tip contact position should be cut. wire cutting jig, wherein a correct length of wire and the like. The wire cutting jig according to claim 1, wherein the top plate member is separable into at least two parts.

Images