JP2888792B2 - Hand chuck - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hand chuck for holding a wire.

[0002]

2. Description of the Related Art Conventionally, a hand chuck for gripping a wire is provided with a pair of gripping pieces movably in a direction approaching or separating from each other. The hand chuck configured as described above is used, for example, when inserting a wire into a connector. In this case, a wire is arranged between both gripping pieces in the hand chuck, and the wire is gripped between the gripping pieces by bringing the gripping pieces closer to each other.
Then, the hand chuck is moved so that the wire gripped by the hand chuck moves in the axial direction and toward the connector fixed and held at a predetermined position in advance. Then, the end of the wire held by the hand chuck is inserted into an insertion hole formed in the connector, and the wire is inserted into the connector.

[0003]

However, in the above-described hand chuck, a pair of gripping pieces only approach and grip the wire, so that a desired number of wires can be gripped from a large number of stacked and stored wires. There was a problem that it could not be taken out.

[0004] The present invention has been made to solve the above problems, and a first object of the present invention is to take out a desired number of wires from a large number of wires. The second purpose is
It is to ensure that a desired number of wires are gripped by a second gripping member.

[0005] A third object is to ensure that the wire gripped by the first gripping member is gripped by the second gripping member. A fourth object is to make it easier for the second holding portion to hold a desired number of wires.

A fifth object is to reliably hold a desired number of wires between the first holding members.

[0007]

In order to achieve the above object, according to the first aspect of the present invention, in particular, a pair of first holding members capable of holding a plurality of wires and a first holding member are provided. And a pair of second holding members for holding a desired number of wires out of the plurality of wires.

[0008] In the invention described in claim 2, the pair of the first pair
Of the pair of second holding members are provided with a predetermined number of holding portions capable of holding one wire on opposing surfaces of the pair of second holding members.

According to the third aspect of the present invention, the pair of first
Is movably provided such that the wire gripped by the first gripping member is positioned corresponding to the holding portion between the pair of second gripping members.

[0010] In the invention described in claim 4, the first pair of the first pair is provided.
Are provided so as to be relatively movable in mutually passing directions.
According to the fifth aspect of the present invention, opposing surfaces of the pair of first holding members are provided with a predetermined number of depressions for holding one wire, and both first holding members are provided on both. Relative movement so that the depressions correspond to each other.

That is, according to the first aspect of the present invention, when the hand chuck is moved toward a large number of wires stacked and stored, a plurality of wires are inserted between the pair of first holding members. In this state, when the first gripping members are brought closer to each other, the plurality of wires are gripped by the first gripping members. The plurality of wires held by the first holding members are inserted between the pair of second holding members. Then, when the two second gripping members are brought closer to each other, a desired number of wires are gripped by the second gripping member from among the plurality of wires, and each of the other wires falls down between the first gripping members.

According to the second aspect of the present invention, in addition to the operation of the first aspect, in a state where the plurality of wires gripped by the first gripping members are inserted between the second gripping members,
The two second gripping members are moved closer to each other. Then, a desired number of wires of the plurality of wires are gripped between the holding portions recessed on the opposing surfaces of the two second gripping members, and the other wires are between the first gripping members. Spills down.

According to a third aspect of the present invention, in addition to the function of the second aspect of the present invention, the first holding members for holding the plurality of wires are provided between the holding portions of the second holding members. Is moved so as to be positioned corresponding to. Then, each of the wires is inserted between the two second gripping members, and when the two second gripping members are moved closer to each other, a desired number of wires are gripped between the holding portions of the two second gripping members. .

According to a fourth aspect of the present invention, in addition to the function of any one of the first to third aspects of the present invention, in the state where a plurality of wires are gripped between the first gripping members, both first and second gripping members are held. The gripping members are moved relative to each other in directions that pass each other. Then, the wires are rolled between the two first holding members, so that the wires are arranged in parallel to the direction in which the first holding members move relative to each other.

According to a fifth aspect of the present invention, in addition to the operation of the fourth aspect, when a plurality of wires are gripped between the first gripping members, one of the wires becomes the first wire. It is inserted shallowly into the depression provided in the gripping member. In this state, when the first gripping members are relatively moved, the depressions provided in the first gripping members are positioned corresponding to each other. As a result, one wire is reliably held between the depressions in the first holding members.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

As shown in FIG. 1, the hand chuck 11 has a substrate 12. The mounting portion 1 is provided at the upper end of the substrate 12.
3 are provided. The attachment section 13 is adapted to be attached to various machines. As shown in FIG.
The lower ends of both sides in the width direction are formed in a tapered shape so that the width of the substrate 12 decreases as going downward. A pair of projections 14 projecting downward are provided at the lower end of the substrate 12.
a between the two projections 14a.
Is provided.

A pair of screw holes 15 are formed on both sides in the width direction of the substrate 12 in parallel with the vertical direction. In the substrate 12, a pair of screw holes 16 are formed in parallel between the upper screw holes 15 in the horizontal direction, and a pair of long holes 17 are formed below the pair of screw holes 16 in the horizontal direction. They are formed in parallel. The slots 17 are provided so as to extend in the horizontal direction. On the front side of the substrate 12, a pair of guide pieces 18 extending in the vertical direction are provided at positions corresponding to the screw holes 15 on both sides in the width direction. Through holes 19 are provided at positions corresponding to the screw holes 15 on both guide pieces 18.

A main operation piece 20 is provided between the two guide pieces 18. The main operation piece 20 is a head 2 extending in the horizontal direction.
1a, a body 21b extending downward from the longitudinal center of the head 21a, and an operating portion 21c projecting downward from the lower end of the body 21b. Screw holes 22 are provided at both ends in the longitudinal direction of the head 21a. A tapered section 2 is provided at the lower end of the operation section 21c.
3 are provided, and the width of the tapered portion 23 is reduced toward the lower side.

Main gripping pieces 24 as second gripping members are provided on both sides in the width direction of the body 21b.
In the main gripping piece 24, a through hole 25 is provided at a position corresponding to the screw hole 16 of the substrate 12, and a screw hole 26 is provided at a position corresponding to the long hole 17. Both main gripping pieces 24
Are provided at the lower ends thereof with gripping portions 27 projecting downward. On opposite surfaces of both grip portions 27, a holding groove 27a as a holding portion which is concavely formed in an arc shape having the same diameter as the wire is provided so as to extend in the horizontal direction.
The operation portion 21c of the main operation piece 20 is inserted between the two grip portions 27. On the opposing surfaces of the two main gripping pieces 24, tapered surfaces 28 are provided above the gripping portions 27 so as to expand toward the top.

A sub operation piece 29 is provided in front of the main operation piece 20. The sub-operation piece 29 includes a head 30a, a body 30b, and an operation unit 30c, like the main operation piece 20. In the head 30a, a through hole 31 is provided at a position corresponding to the screw hole 22 of the main operation piece 20. At the upper end of the body 30b, hooks 32 are cut out on both sides in the width direction. Operation unit 30c
A taper portion 33 is provided at the lower end portion of the main operation piece 20 similarly to the operation portion 21c of the main operation piece 20. The tapered portion 33 is reduced as its width is reduced.

Sub-holding pieces 34 as first holding members are provided on both sides in the width direction of the body 30b.
A slit 35 extending in the vertical direction is formed in each of the auxiliary holding pieces 34. The slit 35 is provided such that the upper end thereof is located corresponding to the through hole 25 of both the main gripping pieces 24. In both sub-grip pieces 34, screw holes 36 are provided at positions corresponding to the screw holes 26 of both main grip pieces 24. At the upper ends of the two sub-grip pieces 34, hook pieces 37 are provided to protrude so as to face each other. This hook piece 37
Is inserted into the hook portion 32 of the sub-operation piece 29.

At the lower ends of the two sub-grip pieces 34, grip parts 38 are provided which project downward. The lower end of the grip 38 is located below the lower end of the grip 27 in the main grip piece 24 as shown in FIGS. The opposing surfaces of both grip portions 38 are formed in a tapered shape that expands downward. The operation portion 30c of the sub operation piece 29 is inserted between the two grip portions 38. The amount of insertion of the operating portion 30c into the grip portion 38 is smaller than the amount of insertion of the operating portion 21c into the grip portion 27 of the main operation piece 21.
In addition, the gripping portions 38
On the upper side, the tapered surface 39 that expands as it goes upward
Are provided respectively.

As shown in FIG. 5A, when the sub-operation piece 29 is pulled upward, the lower ends of the hooks 37 of the two sub-grasping pieces 34 come into contact with the lower ends of the hooks 32 of the sub-operation pieces 29. It is designed to be hooked. In this state, the lower end of the tapered surface 39 of each of the sub-grip pieces 34 is
9, the distance between the two gripping portions 38 is minimized. The length of the hook portion 32 in the vertical direction is set to a value at which the lower end of the tapered surface 39 contacts the tapered portion 33 when the lower end of the hook piece 37 is hooked on the lower end of the hook portion 32.

As shown in FIG. 3, an auxiliary plate 40 is provided in front of the sub-operation piece 29. The auxiliary plate 40 is used for the substrate 1
2 has a substantially pentagonal shape identical to the lower end. At the lower end of the auxiliary plate 40, the protrusions 4
1a and a stopper portion 41b are provided. In the auxiliary plate 40, a through hole 42 is provided at a position corresponding to the through hole 19 of the guide piece 18, and a through hole 4 is provided at a position corresponding to the upper end of the slit 35 in the sub-holding piece 34.
3 are provided. Further, in the auxiliary plate 40, a communication hole 44 is provided at a position corresponding to the screw hole 36 of the sub-grip piece 34 so as to surround the screw hole 36. The communication hole 44 is formed to extend in the vertical direction, and the width of the communication hole 44 is larger than the diameter of the screw hole 36.

The screw holes 16 of the substrate 12 have through holes 43 of the auxiliary plate 40, slits 35 of the
A bolt 45 shown in FIG. 1 is screwed through the through hole 25 of each of the main gripping pieces 24. The sub gripping piece 34 and the main gripping piece 24 are rotatable around a bolt 45. The bolt 46 shown in FIG. 1 is screwed into the screw hole 15 of the substrate 12 through the through hole 42 of the auxiliary plate 40 and the through hole 19 of both guide pieces 18. The screw hole 22 of the main operation piece 20
The bolt 47 shown in FIG. 1 is screwed into the sub-operation piece 29 through the through hole 31. With this bolt 47,
The sub operation piece 29 is connected to the main operation piece 20.

A pair of bolts 48 shown in FIG. 1 are inserted into the screw holes 36 of the two auxiliary gripping pieces 34 through the communication holes 44 of the auxiliary plate 40.
Is screwed. A coil spring 49 is provided between the bolts 48, and the coil spring 49 connects the bolts 48. The two holding pieces 34 are constantly urged by the coil spring 49 in a direction approaching each other. The screw holes 26 of the two main gripping pieces 24 are inserted into the pair of bolts 50 shown in FIG.
Is screwed. A coil spring 51 is provided between the bolts 50, and the coil spring 51 connects the bolts 50. The two main gripping pieces 24 are constantly urged by the coil spring 51 in a direction to approach each other.

As shown in FIG. 1, an air thin lid 52 which can expand and contract in the vertical direction is provided on the upper part of the front surface of the substrate 12. The lower end of the air thin lid 52 is connected to the heads 21a and 30a of the main operation piece 20 and the sub operation piece 29.

Next, the operation of the hand chuck 11 configured as described above will be described. The attachment portion 13 of the hand chuck 11 is attached to various machines. Then, by driving various machines, the hand chuck 11 is moved so as to be located above a number of wires that have been stacked and stored. Further, when the hand chuck 11 is moved downward toward the large number of wires by driving various machines, the two main gripping pieces 24 shown in FIGS.
A plurality of wire rods are inserted between the gripping portions 27 and between the gripping portions 38 of the two auxiliary gripping pieces 34.

In this state, the main operation piece 20 and the sub operation piece 2
9 is obtained by contraction of the air thin lid 52, as shown in FIG.
It is moved upward as shown in FIG. Then, the lower ends of the hooking pieces 37 of the two sub-holding pieces 34 are hooked on the lower ends of both hooking parts 32 of the sub-operation piece 29. Furthermore,
Operation sections 21c and 30c of main operation piece 20 and sub operation piece 29
Is moved upward, and the operation unit 30 c of the sub-operation piece 29 is moved.
The tapered portion 33 of the sub-grip piece 34 has a tapered surface 39.
It is located corresponding to the lower end of. Then, the two sub-grip pieces 34 are rotated in directions approaching each other with the bolt 45 as a fulcrum by the elastic force of the coil spring 49. as a result,
The grip portions 38 of the two sub-grip pieces 34 approach each other until a predetermined interval is reached, and grip the plurality of wires.

When the main operation piece 20 and the sub operation piece 29 are further moved upward by the contraction of the air cylinder 52 after the grip portion 38 has gripped the plurality of wires, as shown in FIG. The two sub-grip pieces 34 hooked on the piece 29 are moved upward. By this movement, the plurality of wires gripped by the grip portion 38 are pulled upward, and the tapered portion 23 of the operation portion 21c of the main operation piece 20 is moved upward as shown in FIG.
As shown in (b), the main gripping piece 24 is pulled upward from between the gripping portions 27. Each wire material lifted upward comes into contact with the stopper portions 14b and 41b of the substrate 12 and the auxiliary plate 40, and is held at that position while sliding with respect to the grip portion 38 that moves upward. At this time, the wire is
At a position corresponding to the holding groove 27a of the gripping portion 27 in FIG.

When the tapered portion 23 is pulled upward from between the gripping portions 27, the two main gripping pieces 24 are rotated by the elastic force of the coil spring 51 in directions approaching each other with the bolt 45 as a fulcrum. . As a result, the gripping portions 27 of the two main gripping pieces 24 approach each other, and the two gripping portions 27 come into contact with the stopper portions 14b and 41b from among the wires held between the two gripping portions 38 of the sub gripping piece 34. Only one wire held at the contact position is gripped between the holding grooves 27 a recessed in both gripping portions 27. In addition, other wires that are not gripped between the holding grooves 27 a of the gripping portions 27 fall down from between the gripping portions 38 of the sub-grip pieces 34. Therefore, only one wire can be gripped between the gripping portions 27 of the two main gripping pieces 24.

In this embodiment described in detail above, the following (a)
(F). (A) A plurality of wire rods are gripped from a large number of wire rods stacked and stored by both sub-grip pieces 34, and only one wire rod from the plurality of wire rods gripped by both sub-grip pieces 34 is removed. The main gripping piece 24 is used to grip.
Therefore, even if many wires are stored in a stacked state, only one wire can be reliably grasped and taken out of each wire.

(B) Gripping portions 27 of both main gripping pieces 24
Holding groove 27a in the shape of an arc having the same diameter as the wire rod
Is recessed so that only one wire is held between the holding grooves 27a. Therefore, the two main gripping pieces 24 can reliably hold one wire.

(C) The sub-grip piece 34 is moved upward so that the plurality of wires gripped by the two sub-grip pieces 34 are positioned corresponding to the holding grooves 27a of the two main grip pieces 24. Therefore, the wire gripped by the two auxiliary gripping pieces 34 can be reliably gripped by the two main gripping pieces 24.

(D) When the plurality of wires gripped by the two sub-grip pieces 34 are positioned corresponding to the holding grooves 27a of the two main grip pieces 24 by the movement of the two sub-grip pieces 34, the wires of the substrate 12 and the auxiliary plate 40 The stoppers 14b and 42b come into contact with each other and are held at that position. Accordingly, the wire gripped by the two auxiliary gripping pieces 34 can be more reliably gripped by the two main gripping pieces 24.

(E) Both main gripping pieces 24 and both sub gripping pieces 34
Are always urged by the coil springs 51 and 49 in a direction to approach each other. Further, the operation parts 21c and 30c of the main operation piece 20 and the sub operation piece 29 are inserted between the grip parts 27 and 38 of the two main grip pieces 24 and the two sub grip pieces 34, respectively.
Tapered portions 23 and 33 were formed at the lower ends of c and 30c.
Therefore, by moving the main operation piece 20 and the sub operation piece 29 in the vertical direction, and by inserting and removing the operation parts 21 c and 30 c between the grip parts 27 and 38, the two main grip pieces 24 are securely inserted.
In addition, the two sub-grip pieces 34 can be moved in a direction to approach or separate from each other.

(F) Hooks 32 are formed on both sides in the width direction of the upper end of the body 30b of the sub-operation piece 29, and the hooks 37 provided at the upper ends of the two sub-grip pieces 34 are inserted into the hooks 32. did. When the two sub-grip pieces 34 grip a plurality of wires by the upward movement of the sub operation piece 29, the hook pieces 37 are hooked on the hook portions 32. Therefore, both sub-grip pieces 3
Since the plurality of wires gripped by 4 are lifted upward with the upward movement of the sub-operation piece 29, the plurality of wires can be easily moved toward the holding grooves 27a of the two main gripping pieces 24.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIGS. In this embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and detailed description is omitted.

As shown in FIG. 7, in the hand chuck 11 of the present embodiment, a pair of projections 14a provided at the lower end of the substrate 12 are longer than in the first embodiment. The stopper 14b provided between the projections 14a is formed in an inverted V-shape. As shown in FIG. 8A, in the sub-operation piece 29 of the present embodiment, the vertical length of the operation portion 30c is shorter than that of the first embodiment, and is located on both sides in the width direction of the body 30b. The lower ends of both hooks 32 are located at the same height.

The sub-grip piece 34 located on the right side of FIG.
The width of the hooking piece 37 in the vertical direction is smaller than the width in the vertical direction of the hooking piece 37 of the sub-grip piece 34 located on the left side of FIG. Hook piece 3 located on the right side
The lower end of 7 is located above the lower end of the hooking piece 37 located on the left side. Further, the grip portion 38 of the sub-grip piece 34 located on the left side is
It is longer than 8 in the vertical direction. Left grip 38
Is located below the lower end of the right gripping portion 38, and a concave portion 38a is formed in the lower end of the opposing surface of the two gripping portions 38 so as to extend in the horizontal direction. Have been. Depression 3 provided on left grip 38
8a is located below the depression 38a provided in the right grip portion 38.

As shown in FIGS. 10A and 10B, when the main operation piece 20 and the sub operation piece 29 are pulled upward, the sub-holding piece 34 located on the left side of FIG. The lower end of the piece 37 is hooked on the lower end of the hook 32 of the sub-operation piece 29. At this time, the operation portion 30c of the sub operation piece 29 is pulled out upward from between the two grip portions 38, and the operation portion 21c of the main operation piece 20 is held in a state where it is located between both the grip portions 27. That is, the vertical length of the operating portion 30 c of the sub-operating piece 29 is such that when the lower end of the left hooking piece 37 is hooked on the lower end of the hooking section 32, the operating section 30 c moves upward from between the two operating sections 38. It is set to the value to be extracted.

Thereafter, as shown in FIGS. 11A and 11B, when the main operation piece 20 and the sub operation piece 29 are further pulled upward, the sub gripping piece 34 located on the left side of FIG. While being moved upward, the lower end of the hooking piece 37 of the sub-grip piece 34 located on the right side of FIG.
Is hooked on the lower end of the hook portion 32. At this time, the dents 38a provided in the both grip portions 38 of the sub grip piece 34 are positioned so as to correspond to each other at the same height, and the operation portion 21c of the main operation piece 20 is positioned between the grip portions 27. Is held. That is, when the lower end of the right hook 37 is hooked on the lower end of the hook 32, the width of the hook 37 on the right side in the vertical direction is
a are set to values that correspond to each other.

Thereafter, as shown in FIGS. 12 (a) and 12 (b), when the main operation piece 20 and the sub operation piece 29 are further pulled upward, the two sub gripping pieces 34 are moved upward, and the main operation piece is moved. The operation portion 21c of the piece 20 is pulled out upward from between the two grip portions 27 of the both main grip pieces 24. At this time, the dents 38 a provided in the two grip portions 38 of the two sub-grip pieces 34 are located at the same height as the holding grooves 27 a provided in the two grip portions 27 of the both main grip pieces 24. That is, the main operation piece 2
The vertical length of the operation unit 21c at 0
When c is pulled upward from between the two grip portions 27, the recess 38a is set to a value located at the same height as the holding groove 27a.

Next, the operation of the hand chuck 11 configured as described above will be described. In the state where a plurality of wires are inserted between the grip portions 27 of the main grip pieces 24 and between the grip portions 38 of the sub grip pieces 34 shown in FIGS. The operation piece 29 is moved upward as shown in FIGS. 9A and 9B. When the tapered portion 33 of the operating portion 30c of the sub-operation piece 29 is positioned corresponding to the lower end of the tapered surface 39 of both sub-grasping pieces 34, the two sub-grabbing pieces 34 approach and the lower end of the tapered surface 39 is operated. It comes into contact with the tapered portion 33 of the portion 30c. Main operation piece 20 and sub operation piece 2
9 is moved further upward as shown in FIGS. 10A and 10B, the sub-grip piece 34 located on the left side of FIG.
Is hooked on the lower end of the hook 32 of the sub-operation piece 29.

At this time, the operating portion 30c of the sub-operation piece 29 is pulled out upward from between the two grip portions 38, and the
A plurality of wires shown by two-dot chain lines in FIG. Each wire may be parallel to the direction in which the grips 38 approach or separate, and one of the wires is inserted shallowly into the recess 38a of the grip 38 located on the right side. You. After that, FIG.
When the main operation piece 20 and the sub operation piece 29 shown in (b) are further moved upward, the sub gripping piece 34 located on the left side of FIG. The lower end of the hooking piece 37 of the sub-grip piece 34 located on the right side is hooked on the lower end of the hooking part 32 of the sub-operation piece 29.

Then, the gripper 3 located on the left side of FIG.
8 is relatively moved upward so as to pass by the grip portion 38 located on the right side. As a result, each wire between the two grip portions 38 rolls, and as shown in FIG. 14, each wire is arranged so as to be parallel to the direction in which the two grip portions 38 move relative to each other. Then, the recesses 38a provided in both grip portions 38
When they are positioned corresponding to each other, one wire is reliably held between the depressions 38a.

Thereafter, as shown in FIGS. 12A and 12B, when the main operation piece 20 and the sub operation piece 29 are further moved upward, the two sub gripping pieces 34 hooked on the sub operation piece 29 are moved. Moved upward. By the movement of the two sub-grip pieces 34,
Each wire held between the two holding portions 38 is pulled upward. Of the wires pulled up, the wire located at the uppermost position contacts the stoppers 14b and 41b of the substrate 12 and the auxiliary plate 40 shown in FIG. Then, the wire located at the uppermost position is the two main gripping pieces 24 shown in FIG.
Are located corresponding to the holding grooves 27a provided in the gripping portions 27 of the first and second gripping portions.

When the gripping pieces 34 are further moved upward, the uppermost wire is held at a position in contact with the stoppers 14b and 41b. The uppermost wire pushes each wire located below the wire downward, and drops the wire from between the two grip portions 38. As a result, one wire located at the uppermost position in FIG. 14 is securely held between the two grip portions 38, and the wire is located between the depressions 38a as shown in FIG. In this state, the tapered portion 23 of the operating portion 21c of the main operating piece 20
Is pulled out upward from between the holding portions 27 of the two main holding pieces 24. Then, the gripping portions 27 of both gripping pieces 24 approach each other and securely grip one wire located between the recesses 38a between the holding grooves 27a.

The present embodiment described above has the following effects (g) to (j) in addition to the effects of the first embodiment. (G) In a state where a plurality of wires are gripped between both grip portions 38,
By moving the grip 38 located on the left side of FIG. 13 upward with respect to the grip 38 located on the right side,
Each wire rod was arranged in parallel to the relative movement direction of both grip portions 38. Therefore, a desired number (one in the present embodiment) of the wires held between the two holding portions 38 can be easily held between the holding portions 27 of the two main holding pieces 24.

(H) A recess 38a is provided in both grip portions 38,
One wire was held only between the depressions 38a. Therefore, the same number (one) of wires as the number of the recesses 38 a provided in the sub-grip pieces 34 can be reliably gripped between the grip portions 38 of the two sub-grip pieces 34.

(I) The two sub-grip pieces 34 are hooked on the sub-operation piece 29 after the sub-grip piece 34 located on the left side of FIG. Therefore, the relative movement between the two grip portions 38 can be easily performed.

(J) Both hooks 32 of the sub-operation piece 29
Are positioned at the same height, and the vertical widths of both hooking pieces 37 of both sub-grip pieces 34 are set to different values. Therefore, when the sub operation piece 29 is moved upward, the hook piece 37 located on the left side of FIG. 8A is hooked on the hook portion 32 of the sub operation piece 29, and then the right hook piece 37 is It can be ensured that the piece 29 is hooked on the hook portion 32.

The present invention can be embodied with the following modifications, for example. (1) In each of the above embodiments, the gripping portions 2 of the two main gripping pieces 24
Although the holding groove 27a is recessed in 7, the holding groove 27a may be omitted if the grip portion 27 is formed between the grip portions 27 so as to be able to grip one wire. In this case, the same effects as those of the above embodiments can be obtained.

(2) In each of the above embodiments, the arc-shaped holding groove 27a is recessed in the holding portion 27. However, if a single wire can be held between the holding portions 27 of the two main holding pieces 24, the holding is performed. The shape of the groove 27a may be appropriately changed. For example, the holding groove 27 a formed in a square shape may be recessed in the grip portion 27.
Further, the holding groove 27 a is formed by
May be provided only on one of the gripping portions 27 instead of being provided on each of them. With such a configuration, the same effects as those of the above embodiments can be obtained.

(3) In each of the above embodiments, the holding groove 2
The diameter of 7a may be appropriately changed according to the diameter of the wire. In this case, even if the diameter of the wire changes, one wire can be held between the holding portions 27 of the two main holding pieces 24.

(4) In the first embodiment, both main gripping pieces 24
Each holding portion 27 is provided with one holding groove 27a, but a plurality of holding grooves 27a that are parallel to the vertical direction may be provided on the facing surface of the holding portion 27. In this case, it is possible to reliably hold the wire between the holding portions 27 by the number of the holding grooves 27a. In the second embodiment, if the number of the depressions 38a is increased so that a plurality of wire rods are gripped between the gripping portions 38 of the two auxiliary gripping pieces 34, the gripping portion of the main gripping piece 24 of the second embodiment is increased. 27 may be provided with a plurality of holding grooves 27a in the same manner as described above.

(5) In each of the above embodiments, the sub operation piece 29
Move both sub-grasping pieces 34 upward by the upward movement of
Although the wire gripped by both sub-grip pieces 34 is positioned corresponding to the holding groove 27a of both main grip pieces 24, the present invention is not limited to this. That is, the hand chuck 11 may be configured to move the two sub-grip pieces 34 upward separately from the upward movement of the sub-operation piece 29. In this case, the same effects as those of the above embodiments can be obtained.

(6) In each of the above embodiments, the two main gripping pieces 2
The coil springs 51 and 49 are provided to urge the sub-grip 4 and the two sub-grasping pieces 34 toward each other. Instead, the two main gripping pieces 24 and the two sub-grasping pieces 34 are moved closer to each other by rubber rings or the like. It may be urged in the direction to be performed. In this case, the same effects as those of the above embodiments can be obtained.

(7) In each of the above embodiments, the main gripping pieces 24 and the sub-grip pieces 34 urged in directions approaching each other.
The gripping portions 27 and 38 are moved closer to or away from the gripping portions 27 and 38 by inserting and removing the operating portions 21c and 30c of the main operation piece 20 and the sub-operational piece 29, but the present invention is not limited to this. Not done. For example, a cylinder capable of contracting in the direction in which the grip portions 27, 38 approach or separate from each other may be connected to the grip portions 27, 38, and the grip portions 27, 38 may be approached or separated by contraction of the cylinder. In this case, the same effects as those of the above embodiments can be obtained.

(8) In the second embodiment, FIG.
As shown in (c), the width in the vertical direction of the hooking pieces 37 of both sub-grip pieces 34 is set to the same value, and the lower ends of both hooking parts 32 of the sub-operation piece 29 are positioned differently in the vertical direction. You may. Also in this case, it is possible to ensure that after the one hook 37 is hooked on the hook 32 of the sub-operation piece 29, the other hook 37 is hooked on the hook 32 of the sub-operation piece 29.

(9) In the second embodiment, the grip 38
The recess 38a may be omitted if the grip portion 38 is formed so that one wire can be gripped therebetween. In this case, the same effects as those of the above embodiments can be obtained.

(10) In the second embodiment, the arc-shaped depression 38a is formed in the grip portion 38. However, if a single wire can be gripped between the grip portions 38 of the sub-grip pieces 34, the depression 38
The shape of a may be appropriately changed. For example, a depression 38 a formed in a square shape may be provided in the grip portion 38. Further, the depression 38a may not be provided in each of the grip portions 38 of the both sub-grip pieces 34, but may be provided only in one of the grip portions 38.

(11) In the second embodiment, the depression 38
The diameter of a may be appropriately changed according to the diameter of the wire. In this case, even if the diameter of the wire changes, the holding portions 3 of the two
One wire can be gripped between the eight wires.

Next, technical ideas other than the claims that can be grasped from the above embodiments will be described below together with their effects. (A) In the hand chuck according to any one of claims 3 to 5, the first and second gripping members are arranged in parallel in a direction orthogonal to a direction in which the gripping members approach or separate from each other. A hand chuck provided with a stopper that abuts on a wire gripped by a gripping member and is moved toward a holding portion of a second gripping member to hold the wire at a position corresponding to the holding portion. In this case, the wire held by the first holding member can be more reliably held by the second holding member.

(B) In the hand chuck described in (a), a first biasing member (coil spring 49) for biasing the pair of first gripping members in a direction to approach each other.
And a second biasing member (coil spring 51) for biasing the pair of second gripping members in a direction of approaching each other, and between the first gripping member and between the second gripping members. A hand chuck provided with an operation member (20, 29) so as to be able to advance and retreat, the operation member being provided with a tapered portion which is in contact with the first and second gripping members and which is inclined with respect to the direction of movement of the operation member. In this case, the first and second gripping members can be reliably moved in the direction of approaching or separating.

(C) In the hand chuck described in (b) above, the operating member has a locking portion (a hook portion) to which the first gripping member is locked when the first gripping member grips the wire. 32) is provided, and the operating member is advanced and retracted in a state where the first gripping member is locked by the locking portion, whereby the wire gripped by the first gripping member is held by the holding portion between the second gripping members. Hand chuck that moves toward. In this case, the wire held by the first holding member can be easily moved toward the holding portion of the second holding member.

(D) In the hand chuck described in (c) above, a pair of locking portions are provided corresponding to the two first gripping members, and the two locking portions are one of the two when the operating member is moved forward and backward. A hand chuck in which one first gripping member is locked to a locking portion, and then the other first gripping portion is locked to the other locking portion. In this case, the two first gripping members can be easily moved relative to each other in the mutually passing directions.

(E) In the hand chuck described in (D), both locking portions are provided at the same position with respect to the advancing and retreating direction of the operation member, and both first gripping members are provided with respect to the locking portion. A hand chuck in which locking pieces to be locked are provided, and widths of the two locking pieces in the advancing / retreating direction of the operation member are different values. In this case, after one locking piece is locked to one locking portion, it is possible to ensure that the other locking piece is locked to the other locking portion.

(F) In the hand chuck according to the above (d), both locking portions are provided at different positions with respect to the moving direction of the operating member, and both first gripping members are provided with respect to the locking portion. A hand chuck in which locking pieces to be locked are provided, and the widths of the two locking pieces in the advancing / retreating direction of the operation member are the same. In this case, after one locking piece is locked to one locking portion, it is possible to ensure that the other locking piece is locked to the other locking portion.

[0071]

According to the first aspect of the present invention, a plurality of wires are gripped by both first gripping members, and only a desired number of wires are gripped from each of the wires by both second gripping members. did. Therefore, a desired number of wires can be gripped and taken out from among the many wires stacked and stored.

According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, a holding portion is provided on the opposing surfaces of the two second holding members, and the wire is held between the holding portions. Thus, the desired number of wires can be reliably gripped by the second gripping member.

According to the third aspect of the present invention, in addition to the effects of the second aspect, the plurality of wires gripped by the first gripping members are moved by the first gripping members to form the second wires.
Corresponding to between the holding portions of the holding member. Therefore, the wire gripped by the first gripping member can be securely transferred to the second gripping member.
Gripping member.

According to the fourth aspect of the present invention, in addition to the effect of the first aspect of the present invention, each wire gripped between the first gripping members is formed by the first gripping member. Since the wires are arranged in parallel to the direction of relative movement, it is easy to cause the second holding portion to hold a desired number of wires.

According to the fifth aspect of the present invention, in addition to the effect of the fourth aspect of the present invention, one wire is reliably held between the depressions provided in both the first holding members. Become. Accordingly, between the first holding members, the same number of wires as the number of the depressions provided in the first holding members can be reliably held.

[Brief description of the drawings]

FIG. 1 is a front view showing a hand chuck according to a first embodiment.

FIG. 2 is a rear view showing the hand chuck.

FIG. 3 is an exploded perspective view showing a hand chuck.

FIG. 4A is a front view showing a sub-operation piece and a sub-grip piece.
(B) is a front view showing a main operation piece and a main gripping piece.

FIG. 5A is a front view showing a sub-operation piece and a sub-grip piece.
(B) is a front view showing a main operation piece and a main gripping piece.

FIG. 6A is a front view showing a sub-operation piece and a sub-grip piece.
(B) is a front view showing a main operation piece and a main gripping piece.

FIG. 7 is an exploded perspective view showing a hand chuck according to a second embodiment.

FIG. 8A is a front view showing a sub-operation piece and a sub-grip piece.
(B) is a front view showing a main operation piece and a main gripping piece.

FIG. 9A is a front view showing a sub-operation piece and a sub-grip piece.
(B) is a front view showing a main operation piece and a main gripping piece.

FIG. 10A is a front view showing a sub-operation piece and a sub-grip piece. (B) is a front view showing a main operation piece and a main gripping piece.

FIG. 11A is a front view showing a sub-operation piece and a sub-grip piece. (B) is a front view showing a main operation piece and a main gripping piece.

FIG. 12A is a front view showing a sub-operation piece and a sub-grip piece. (B) is a front view showing a main operation piece and a main gripping piece.
(C) is a front view showing another example of the sub operation piece and the sub holding piece.

FIG. 13 is an enlarged front view showing a holding portion of a sub-holding piece.

FIG. 14 is an enlarged front view showing a holding portion of a sub-holding piece.

FIG. 15 is an enlarged front view showing a holding portion of a sub-holding piece.

[Explanation of symbols]

11: hand chuck, 24: main gripping piece as a second gripping member, 27a: holding groove as a holding portion, 34: first
Sub-grip pieces as gripping members, 38a.

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-6-31672 (JP, A) JP-A 7-42330 (JP, U) JP-A 61-24193 (JP, U) JP-A 61-193 102490 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) B25J 15/08 B66C 1/42 B66C 1/62

Claims (5)

(57) [Claims] 1. A hand chuck in which a pair of gripping members (24, 34) are provided so as to be movable toward or away from each other, and both gripping members (24, 34) are moved closer to grip a wire. A pair of first gripping members capable of gripping a plurality of wires (34);
And a pair of second holding members (24) for holding a desired number of wires out of the plurality of wires held by the first holding member (34). 2. The pair of first holding members (34) are accessible to each other up to a predetermined distance, and the pair of second holding members (34) are
The hand chuck according to claim 1, wherein a predetermined number of holding portions (27a) capable of holding one wire are provided on opposing surfaces of the holding member (24). 3. The pair of first gripping members (34),
The wire gripped by the first gripping member (34) holds the wire (2) between the pair of second gripping members (24).
3. The hand chuck according to claim 2, wherein the hand chuck is movably provided so as to be positioned corresponding to 7a). 4. The pair of first gripping members (34)
2. The device according to claim 1, wherein the first and second movable members are provided so as to be relatively movable in different directions.
4. The hand chuck according to any one of claims 1 to 3. 5. A predetermined number of recesses (38a) for holding one wire rod are provided on opposing surfaces of the pair of first gripping members (34), and both first gripping members (34) are provided. 5.) The hand chuck according to claim 4, wherein (2) and (3) move relatively so that the depressions (38a) provided in both of them are positioned correspondingly.