JP3234705U - Tool chuck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tool chuck capable of firmly tightening and fixing a cylindrical joint.
A tool chuck of the present invention includes a housing, a holding group 30, and a push rod 40, the housing includes an opening 21, and the holding group is provided in the housing, and a first grasping claw is provided. A 31 and a second grasping claw 32 and a spacer 33 are provided, one end of the first grasping claw and the second grasping claw is close to the opening, and the spacer is the first surface 331 and the second opposite side. A surface is provided, the first surface abuts on one end of the first grasping claw and the second grasping claw on the opposite side of the opening, a positioning groove is recessed on the second surface, and the push rod is pivotally installed in the housing. , One end of the push rod is rotatably inserted into the positioning groove. The chuck can be connected to other joint type tools via the structure described above.
[Selection diagram] Fig. 2

Description

The present invention mainly relates to a tool chuck, and particularly to a tool chuck capable of firmly tightening and fixing a cylindrical joint.

Both electric tools and pneumatic tools drive a drive head of the corresponding joint type by providing a specific joint on the drive shaft side. For example, a hexagonal hole is provided at one end of the drive shaft of an electric screwdriver, and a hexagonal columnar screwdriver head is provided. However, when connecting a socket or other tool to an electric screwdriver, it is necessary to go through an adapter. Even so, cylindrical drills were not easy to connect via adapters.

A main object of the present invention is to provide a tool chuck including a housing, a holding set, and a push rod.

The housing includes an opening, and the holding assembly is provided in the housing, and includes a first grasping claw, a second grasping claw, and a spacer, and the first grasping claw and the second grasping claw. One end of the spacer is close to the opening, the spacer is provided with a first surface and a second surface opposite to the first surface, and the first surface is the first grasping claw and the second surface opposite to the opening. A positioning groove is recessed in the second surface in contact with one end of the grasping claw, the push rod is pivotally installed in the housing, and one end of the push rod is rotatably inserted into the positioning groove. .. The chuck can be connected to other joint type tools via the structure described above.

The housing has a sliding surface, the sliding surface is adjacent to the opening and has a ring shape, and the end of the sliding surface close to the opening is along the radial width of the push rod. A first width is formed, and a second width is formed along the radial width of the push rod at an end of the sliding surface away from the opening, and the first width is the second width. It is smaller than the width, and the first grasping claw and the second grasping claw movably abut on the sliding surface.

The housing includes a front lid and a rear lid, the opening is provided at one end of the front lid, the sliding surface is provided in the front lid, and the rear lid is provided with the opening. It is connected to one end of the front lid on the opposite side, the rear lid is provided with a pivot hole, and the push rod is rotatably inserted into the pivot hole.

A first screw portion is provided in the pivot hole, the push rod includes a second screw portion along the outer circumference in the radial direction, and the second screw portion is screwed to the first screw portion.

The push rod is provided with a stabilizing portion along the outer circumference in the radial direction, the stabilizing portion has a cylindrical shape, is arranged on one side of the second screw portion opposite to the spacer, and the stabilizing portion is formed. It is slidably provided in the pivot hole and abuts on the inner peripheral circle of the pivot hole by a surface contact method.

The holding group includes a third grasping claw, a first elastic member, a second elastic member, and a third elastic member, and one end of the third grasping claw is close to the opening, and the first The surface contacts one end of the third grasping claw opposite to the opening, the third grasping claw movably contacts the sliding surface, and one end of the first elastic member touches the first grasping claw. The other end is in contact with the second grasping claw, one end of the second elastic member is in contact with the second grasping claw, and the other end is in contact with the third grasping claw. One end abuts on the first grasping claw and the other end abuts on the third gripping claw.

A first connecting portion is provided on the inner peripheral edge of the front lid, the sliding surface is provided between the opening and the first connecting portion, and a second connecting portion and a stop are provided on the outer peripheral edge of the rear lid. A convex edge is provided, the first connecting portion is fitted into the second connecting portion, and one end of the front lid opposite to the opening abuts on the stop convex edge.

A concave groove is provided on the outer peripheral edge of the rear lid, an O-ring is provided in the concave groove, and the O-ring abuts on the inner peripheral edge of the front lid.

The positioning groove does not penetrate the spacer, the first surface exhibits a circular plane, one end of the push rod opposite to the spacer protrudes out of the housing, and a drive portion is provided, and the drive portion is provided. It has a hexagonal columnar shape.

It is a three-dimensional appearance view of the tool chuck of this invention. It is a three-dimensional exploded view of the tool chuck of this invention. It is a three-dimensional exploded view seen from another angle of the tool chuck of this invention. It is a structural sectional view of the tool chuck of this invention. It is a structural cross-sectional view seen from another angle of the tool chuck of this invention.

With reference to FIGS. 1 to 5, it is a three-dimensional external view, a three-dimensional exploded view, and a structural sectional view of the tool chuck of the present invention. The chuck 10 of the present invention includes a housing 20, a holding set (holding mechanism) 30, and a push rod 40.

The housing 20 includes an opening 21, and the holding assembly 30 is provided in the housing 20.

The holding group 30 is provided in the housing 20, and includes a first grasping claw 31, a second grasping claw 32, and a spacer 33, and one end of the first grasping claw 31 and the second grasping claw 32. The spacer 33 is provided with a first surface 331 and a second surface 332 opposite to the first surface 331, and the first surface 331 is the first grasping claw on the opposite side of the opening 21. The positioning groove 333 is recessed in the second surface 332 so as to come into contact with one end of the 31 and the second grasping claw 32.

The push rod 40 is pivotally installed in the housing 20, and one end of the push rod 40 is rotatably inserted into the positioning groove 333.

The housing 20 has a sliding surface 22, which is adjacent to the opening 21 and has a ring shape, and is pushed to an end of the sliding surface 22 close to the opening 21. A first width W1 is formed along the radial width of the rod 40, and a second width W2 is formed along the radial width of the push rod 40 at an end of the sliding surface 22 that separates from the opening 21. The first width W1 is smaller than the second width W2, and the first grasping claw 31 and the second grasping claw 32 movably abut on the sliding surface 22.

The housing 20 includes a front lid 23 and a rear lid 24, the opening 21 is provided at one end of the front lid 23, and the sliding surface 22 is provided in the front lid 23. The rear lid 24 is connected to one end of the front lid 23 opposite to the opening 21, the rear lid 24 is provided with a pivot hole 241 and the push rod 40 is rotatably inserted into the pivot hole 241. NS.

A first screw portion 242 is provided in the pivot hole 241, the push rod 40 includes a second screw portion 41 along the outer circumference in the radial direction, and the second screw portion 41 is screwed into the first screw portion 242. Be worn.

The push rod 40 includes a stabilizing portion 42 along the outer circumference in the radial direction, and the stabilizing portion 42 has a cylindrical shape and is arranged on one side of the second screw portion 41 opposite to the spacer 33. The stabilizing portion 42 is slidably provided in the pivot hole 241 and abuts on the inner peripheral circle of the pivot hole 241 by a surface contact method.

The holding group 30 includes a third grasping claw 34, a first elastic member 35, a second elastic member 36, and a third elastic member 37, and one end of the third grasping claw 34 is the opening 21. The first surface 331 abuts on one end of the third grasping claw 34 opposite to the opening 21, and the third grasping claw 34 movably abuts on the sliding surface 22. 1 One end of the elastic member 35 is in contact with the first grasping claw 31, the other end is in contact with the second grasping claw 32, one end of the second elastic member 36 is in contact with the second grasping claw 32, and the like. The end abuts on the third grasping claw 34, one end of the third elastic member 37 abuts on the first grasping claw 31, and the other end abuts on the third grasping claw 34.

A first connecting portion 231 is provided on the inner peripheral edge of the front lid 23, and the sliding surface 22 is provided between the opening 21 and the first connecting portion 231 and is provided on the outer peripheral edge of the rear lid 24. A second connection portion 243 and a stop convex edge 244 are provided, the first connection portion 231 is fitted into the second connection portion 243, and one end of the front lid 23 opposite to the opening 21 is the stop convex edge. It abuts on 244.

A concave groove 245 is provided on the outer peripheral edge of the rear lid 24, an O-ring 246 is provided in the concave groove 245, and the O-ring 246 comes into contact with the inner peripheral edge of the front lid 23.

The positioning groove 333 does not penetrate the spacer 33, the first surface 331 exhibits a circular flat surface, one end of the push rod 40 opposite to the spacer 33 protrudes outside the housing 20, and the drive unit 43 Is provided, and the drive unit 43 exhibits a hexagonal columnar shape.

The chuck 10 can be connected to other joint type tools, particularly tools such as drills with a cylindrical shank, via the structure described above. Utilizing the cooperation between the spacer 33 and the push rod 40, the push rod 40 pushes the first grasping claw 31, the second grasping claw 32, and the third grasping claw 34 via the spacer 33. It can be moved, and the positioning groove 333 prevents the spacer 33 from being displaced and ensures that the push rod 40 can rotate smoothly.

From the above, it is summarized that the present invention has the following advantages.
1. 1. The present invention proposes a tool chuck. Here, the chuck includes a housing, a holding set, and a push rod, the housing includes an opening, and the holding set is provided in the housing, and the first grasping claw and the second grasping claw are provided. A claw and a spacer are provided, one end of the first grasping claw and the second grasping claw is close to the opening, and the spacer is provided with a first surface and a second surface opposite to the first surface. The first surface abuts on one end of the first grasping claw and the second grasping claw on the opposite side of the opening, a positioning groove is recessed on the second surface, and the push rod is pivoted to the housing. One end of the push rod is rotatably inserted into the positioning groove. The chuck can be connected to other joint type tools via the structure described above.

10 Chuck 20 Housing 21 Opening 22 Sliding surface 23 Front lid 231 First connection part 24 Rear lid 241 Pilot hole 242 First screw part 243 Second connection part 244 Stop convex edge 245 Concave groove 246 O-ring 30 Holding assembly 31 1st grasping claw 32 2nd grasping claw 33 Spacer 331 1st surface 332 2nd surface 333 Positioning groove 34 3rd grasping claw 35 1st elastic member 36 2nd elastic member 37 3rd elastic member 40 Push rod 41 2nd screw Part 42 Stabilization part 43 Drive part W1 First width W2 Second width

Claims (3)

A housing with an opening and
Provided in the housing, the first grasping claw, the second grasping claw, and the spacer are provided, one end of the first grasping claw and the second grasping claw is close to the opening, and the spacer is the first. A first surface and a second surface opposite to the first surface are provided, and the first surface abuts on one end of the first grasping claw and the second grasping claw on the opposite side of the opening. A holding set with a positioning groove recessed on the second surface, and
A push rod that is pivotally installed in the housing and one end of the push rod is rotatably inserted into the positioning groove.
Tool chuck including. The housing has a sliding surface, the sliding surface is adjacent to the opening and has a ring shape, and the end of the sliding surface close to the opening is along the radial width of the push rod. A first width is formed, and a second width is formed along the radial width of the push rod at an end of the sliding surface away from the opening, and the first width is the second width. The tool chuck according to claim 1, which is smaller than the width and in which the first grasping claw and the second grasping claw movably abut against the sliding surface. The housing includes a front lid and a rear lid, the opening is provided at one end of the front lid, the sliding surface is provided in the front lid, and the rear lid is provided with the opening. It is connected to one end of the front lid on the opposite side, the rear lid is provided with a pivot hole, the push rod is rotatably inserted into the pivot hole, and a first screw portion is provided in the pivot hole. The push rod has a second threaded portion along the radial outer circumference, the second threaded portion is screwed onto the first threaded portion, and the push rod has a stabilizing portion along the radial outer circumference. The stabilizing portion has a cylindrical shape and is arranged on one side of the second screw portion opposite to the spacer, and the stabilizing portion is slidably provided in the pivot hole and is provided by a surface contact method. The holding group abuts on the inner peripheral circle of the pivot hole, and includes a third grasping claw, a first elastic member, a second elastic member, and a third elastic member, and one end of the third grasping claw. Is close to the opening, the first surface is in contact with one end of the third grasping claw opposite to the opening, and the third grasping claw is movably abutted on the sliding surface, and the first One end of the elastic member is in contact with the first grasping claw, the other end is in contact with the second grasping claw, one end of the second elastic member is in contact with the second grasping claw, and the other end is in contact with the third grasping claw. One end of the third elastic member is in contact with the first grasping claw, the other end is in contact with the third grasping claw, and a first connecting portion is provided on the inner peripheral edge of the front lid. The sliding surface is provided between the opening and the first connection portion, a second connection portion and a stop convex edge are provided on the outer peripheral edge of the rear lid, and the first connection portion is the second connection portion. One end of the front lid opposite to the opening is in contact with the stop convex edge, a concave groove is provided on the outer peripheral edge of the rear lid, and an O ring is provided in the concave groove. The O-ring abuts on the inner peripheral edge of the front lid, the positioning groove does not penetrate the spacer, the first surface exhibits a circular plane, and one end of the push rod opposite to the spacer projects out of the housing. The tool chuck according to claim 2, wherein a drive unit is provided, and the drive unit exhibits a hexagonal columnar shape.

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