Sleeve for tool

Abstract

To provide a double sleeve simple in structure, fast and easy in assembling and manufacturing, and applicable to attachment / detachment of fasteners of various sizes.SOLUTION: This double sleeve comprises: an outer sleeve member 14 including a fitting hole 11, a storage hole 12 communicated with the fitting hole, and a radial projection 13 provided to project in a radial direction between the fitting hole and the storage hole; an inner sleeve member inserted into the outer sleeve member so as to be relatively unrotatable, including an inner sleeve part and a joined part inserted into the inner sleeve part, the inner sleeve part being stored in the fitting hole, abuttable against the radial projection in an axial direction, and the joined part extending from the inner sleeve part into the storage hole; and a first biasing member 30 provided in the storage hole and buried between the radial projection and the inner sleeve member.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a sleeve, in particular tool Regarding sleeves. [Background technology]

[0002] Various products all use fasteners to assemble various components together. Fasteners include, for example, screws, nuts, bolts, and the like. Most fasteners, including but not limited to, tighten or loosen through rotation. When rotating, the fastener must usually be used with a sleeve, and the sleeve must be inserted into an elongated biasing part to perform the rotation operation.

[0003] Multi-size sleeves have been developed to accommodate a variety of fastener sizes simultaneously. The multi-dimension sleeve includes a plurality of inner and outer sleeve members that are relatively movable and intermateable with one another, and an assembly rod extending outside the inner and outer sleeve members for assembling a driving tool (hand or power tool). Here, the inner sleeve member, the outer sleeve member, and the assembly rod are each independent components, and the inner sleeve member, the outer sleeve member, and the assembly rod are connected via fasteners or stoppers such as C-shaped fasteners or ring members.

[0004] Conventional multi-dimension sleeves can be applied to attach and detach fasteners of various sizes, but have the disadvantage that their structure is complicated, making them difficult to assemble and manufacture, and taking a long time to assemble and manufacture.

[0005] Therefore, in order to solve the above problems, tool A sleeve for the casing must be provided. Summary of the Invention [Problem to be solved by the invention]

[0006] The primary objective of the present invention is to provide a fastener assembly that is simple in structure, quick and easy to assemble and manufacture, and adaptable to fastening and unfastening of fasteners of various sizes. tool The object of the present invention is to provide a sleeve for use. [Means for solving the problem]

[0007] In order to achieve the above object, the present invention provides an outer sleeve member including an insertion hole, an accommodation hole communicating with the insertion hole, and a radial protrusion provided between the insertion hole and the accommodation hole in a radial direction; an inner sleeve member that is inserted into the outer sleeve member so as not to rotate relative to the outer sleeve member, the inner sleeve member including an inner sleeve portion and a joint portion inserted into the inner sleeve portion, the inner sleeve portion being received in the insertion hole, the inner sleeve portion being capable of abutting against the radial protrusion in the axial direction, and the joint portion extending from the inner sleeve portion to the receiving hole; A first biasing member is provided in the receiving hole and is pressed between the radial protrusion and the inner sleeve member. tool A sleeve for use is provided. [Brief description of the drawings]

[0008] [Figure 1] 1 is a perspective view of a tool sleeve according to an embodiment of the present invention; [Diagram 2] 1 is an exploded view of a tool sleeve according to one embodiment of the present invention. [Diagram 3] 1 is a cross-sectional view of a tool sleeve according to an embodiment of the present invention. [Figure 4] 5A to 5C are explanatory diagrams illustrating the operation of the tool sleeve according to the embodiment of the present invention. [Diagram 5] 5A to 5C are explanatory diagrams illustrating the operation of the tool sleeve according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Examples of the present invention will be described below, but the present invention is not limited to the following examples.

[0010] 1 to 5 show an embodiment of the present invention. tool 1 shows a sleeve 1 for use. The present invention tool The sleeve 1 includes an outer sleeve member 10, an inner sleeve member 20, and a first biasing member 30.

[0011] The outer sleeve member 10 includes an installation hole 11, an accommodation hole 12 communicating with the installation hole 11, and a radial protrusion 13 provided between the installation hole 11 and the accommodation hole 12 so as to protrude in the radial direction. The inner sleeve member 20 is inserted into the outer sleeve member 10 in a state in which it cannot rotate relatively to the outer sleeve member 10 . The inner sleeve member 20 includes an inner sleeve portion 21 and a joining portion 22 inserted into the inner sleeve portion 21 . The inner sleeve portion 21 is housed in the fitting hole 11 and is capable of abutting against the radial protrusion 13 in the axial direction. The joint portion 22 extends from the inner sleeve portion 21 into the receiving hole 12 . The first biasing member 30 is provided in the receiving hole 12 and is pressed between the radial protrusion 13 and the inner sleeve member 20 . Therefore, tool The sleeve 1 has a simple structure, can be quickly and easily assembled and manufactured, and can be applied to attach and detach fasteners of various sizes.

[0012] The outer sleeve member 10 further includes an outer sleeve portion 14 having a mounting hole 11 formed therein. The inner sleeve portion 21 is thinner than the outer sleeve portion 14 . The fitting hole 11 of the outer sleeve portion 14 is adapted to receive a large fastener (such as a nut or bolt). The fitting hole 211 of the inner sleeve portion 21 is adapted to receive a small fastener. The relatively thick outer sleeve portion 14 provides greater structural strength and is less likely to break when driving large size fasteners. The inner sleeve portion 21 includes an insertion end 212 . The joint portion 22 includes an insertion hole 221 . The insertion hole 221 has a radial dimension equal to or slightly smaller than the radial dimension of the insertion end portion 212 . The insertion end 212 is inserted into the insertion hole 221 with a tight fit, and in this way the inner sleeve part 21 and the joint part 22 can be assembled and connected simply and stably.

[0013] In this embodiment, the insertion end 212 is polygonal and the insertion hole 221 is also polygonal, but these insertion end 212 and insertion hole 221 may be circular or any other shape other than circular. It is sufficient that the insertion end portion 212 and the insertion hole 221 can be joined to each other by a tight fit. More specifically, the insertion end 212 includes a plurality of outer flat surfaces 213 and a plurality of protrusions 214 . The insertion hole 221 includes a plurality of inner flat surfaces 222 and a plurality of grooves 223 . The outer planes 213 and the inner planes 222 are tightly fitted together, and the protrusions 214 are loosely fitted into the grooves 223 .

[0014] Preferably, the mounting end 212 includes a curved surface 215 that extends into the mounting hole 221 and mates with one end of the joint portion 22 . The curved surface 215 flares radially toward the outer sleeve member 10, thereby ensuring a tight fit between them and also preventing the insertion end 212 from being inserted too far. In this embodiment, there is a gap G between the end surface of the insertion end 212 and the bottom surface of the insertion hole 221, which prevents insufficient insertion.

[0015] The inner sleeve portion 21 has a smaller diameter than the joint portion 22 . The first biasing member 30 is pressed between the radial projection 13 and the inner sleeve portion 21 . More specifically, the first biasing member 30 is a coil spring, and is fitted into the inner sleeve portion 21 . The first biasing member 30 biases the joint portion 22 so that the fitting hole 211 of the inner sleeve portion 21 always enters the fitting hole 11 of the outer sleeve portion 14. This allows the fitting hole 11 of the outer sleeve portion 14 to be used easily, quickly and directly, and also avoids interference with the inner sleeve portion 21.

[0016] In this embodiment, tool The sleeve 1 further includes a locking mechanism 40 provided at the joint 22 . The locking mechanism 40 is movable between a locked position (FIG. 4) and an unlocked position (FIG. 5). When the locking mechanism 40 is in the released position, the insert 50 can move in and out of the interface hole 224 of the interface 22 . When the locking mechanism 40 is in the locked position, the insert 50 inserted in the connecting hole 224 is locked, thereby making assembly and replacement more efficient. The insert 50 may be, for example, a connecting rod that is assembled to a drive tool, or a drive tool head (eg, a cross, straight or other shaped driver head).

[0017] More specifically, the joint portion 22 further includes a radial through hole 225 and a radial stopper 226 (an integrally molded protrusion or a C-shaped fastener). The lock mechanism 40 includes a slide bush 41 , a second biasing member 42 , and a restricting member 43 . The slide bush 41 is slidably fitted into the joint portion 22 . The slide bush 41 includes an inner stop portion 411 , an inner protrusion 412 , and a release groove 413 . The inner stop 411 is axially stopped by a radial stop 226 . The second biasing member 42 is a coil spring, and is fitted into the joint portion 22 . The second biasing member 42 is pressed between the joint portion 22 and the inner protrusion 412 . The limiting member 43 is housed in the radial through hole 225 . When the locking mechanism 40 is in the release position, the limiting member 43 corresponds to the release groove 413 to release the insert 50, and when the locking mechanism 40 is in the lock position, the limiting member 43 corresponds to the inner protrusion 412 to lock the insert 50.

[0018] Preferably, the joint 22 further includes an outer flange 227 . The slide bush 41 is located between the radial stopper 226 and the outer flange 227 . The slide bush 41 is movable until it contacts the outer flange 227, thereby allowing the release groove 413 to be quickly and accurately aligned with the restricting member 43 (FIG. 5). [Explanation of symbols]

[0019] 1 tool Sleeve for 10 Outer sleeve member 11 Insertion hole 12 Receiving hole 13 Radial convexity 14 Outer sleeve part 20 Inner sleeve member 21 Inner sleeve part 211 Insertion hole 212 Insertion end 213 Outer plane 214 Protrusion 215 Curved surface 22 Joint 221 Insertion hole 222 Medial plane 223 Groove 224 Junction hole 225 Radial through hole 226 Radial stopper 227 Outer flange 30 First biasing member 40 Locking mechanism 41 Slide bush 411 Inner stopper 412 Inner convex part 413 Release groove 42 Second biasing member 43 Restriction member 50 Inserts G gap

Claims

1. A dual-use sleeve, an outer sleeve member including an insertion hole, an accommodation hole communicating with the insertion hole, and a radial protrusion provided between the insertion hole and the accommodation hole in a radial direction; an inner sleeve member that is inserted into the outer sleeve member so as not to rotate relative to the outer sleeve member, the inner sleeve member including an inner sleeve portion and a joint portion inserted into the inner sleeve portion, the inner sleeve portion being received in the insertion hole, the inner sleeve portion being capable of abutting against the radial protrusion in the axial direction, and the joint portion extending from the inner sleeve portion to the receiving hole; a first biasing member provided in the receiving hole and pressed between the radial protrusion and the inner sleeve member; Dual-use sleeve.

2. 2. The dual-purpose sleeve of claim 1, wherein the inner sleeve portion includes an insertion end, the joint portion includes an insertion hole, and the insertion end is inserted into the insertion hole with an interference fit.

3. 3. The dual-purpose sleeve of claim 2, wherein said insertion end is polygonal and said insertion hole is polygonal.

4. 3. The dual-purpose sleeve of claim 2, wherein said insertion end has a curved surface extending into said insertion bore and joining one end of said joint portion, said curved surface flaring radially toward said outer sleeve member.

5. 2. The dual-purpose sleeve according to claim 1, wherein the inner sleeve portion has a smaller diameter than the joint portion, and the first biasing member is pressed between the radial protrusion and the inner sleeve portion.

6. The dual-purpose sleeve of claim 1 , wherein the outer sleeve member further includes an outer sleeve portion having the bore therethrough, the inner sleeve portion being thinner than the outer sleeve portion.

7. 4. The dual-purpose sleeve of claim 3, wherein the insertion end includes a curved surface extending into the insertion hole and connecting with one end of the joint portion, the curved surface expanding radially toward the outer sleeve member, the inner sleeve portion having a smaller diameter than the joint portion, the first biasing member being pressed between the radial protrusion and the inner sleeve portion, the outer sleeve member further including an outer sleeve portion having the insertion hole formed therein, the inner sleeve portion being thinner than the outer sleeve portion, the first biasing member being a coil spring, there is a gap between the end surface of the insertion end and a bottom surface of the insertion hole, the insertion end includes a plurality of outer flat surfaces and the plurality of protrusions, the insertion hole includes a plurality of inner flat surfaces and a plurality of grooves, the plurality of outer flat surfaces and the plurality of inner flat surfaces are joined by an interference fit, and the plurality of protrusions are loosely fitted into the plurality of grooves.

8. A dual-purpose sleeve as described in any one of claims 1 to 7, further comprising a locking mechanism provided at the joint, the locking mechanism being movable between a locked position and a released position, and when the locking mechanism is in the released position, allowing an insert to enter and exit the joint hole of the joint, and when the locking mechanism is in the locked position, locking the insert inserted into the joint hole.

9. 9. The dual-purpose sleeve of claim 8, wherein the joint further includes a radial through hole and a radial stopper, the locking mechanism includes a slide bush, a second biasing member, and a limiting member, the slide bush is slidably fitted into the joint, the slide bush includes an inner stop portion, an inner convex portion, and a release groove, the inner stop portion is axially stopped by the radial stopper, the second biasing member is pressed between the joint and the inner convex portion, the limiting member is stored in the radial through hole, and when the locking mechanism is in the release position, the limiting member releases the insert in response to the release groove, and when the locking mechanism is in the lock position, the limiting member locks the insert in response to the inner convex portion.

10. The dual-purpose sleeve of claim 9 , wherein the interface further includes an outer flange, the sliding bushing being positioned between the radial stopper and the outer flange, and the sliding bushing being movable until it contacts the outer flange.

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