NZ769683B2 - Hand tool having telescopic tool piece - Google Patents

Abstract

manual tool of the present invention seeks to provide a simpler and more reliable structure having a tool member that can be retracted, and such a manual tool whose tool member comprises several tool portions. A hand tool having a telescopic tool piece, comprising a handle and a linkage member. The handle comprises a handle part (1) and a handle part (2); the linkage member comprises a tool end (31) and a handle end (32); the tool piece is adapted to be driven by the handles and the linkage member and is able to telescopically move between a working state and a retracted state with respect of the handles; and in the working state, the tool piece extends out of the proximate ends (11, 21) of the handles, and in the folded state, the tool piece is retracted into the handles and located between the proximate ends (11, 21) and the distal ends (21, 22) of the handles. In one embodiment of the hand tool, the tool member has pivot points operatively connected to the linkage members and in another embodiment, the tool member has tool heads operatively connected to the linkage members.

Claims (23)

Claims

1. A manual tool having a retractable tool member, further comprising a handle and a linkage member, wherein the handle comprises a first handle portion and a second handle portion, the first handle portion having a first proximal end and a first distal end, the second handle portion having a second proximal end and a second distal end, the first handle portion being rotatable about a first pivot located at the first proximal end, the second handle portion being rotatable about a second pivot located at the second proximal end, and the first pivot and the second pivot being connected through a connector; the linkage member comprises a first linkage member and a second linkage member, the first linkage member having a first tool end and a first handle end, and the second linkage member having a second tool end and a second handle end; the tool member has a third pivot and a fourth pivot, the first linkage member being rotatably connected with the tool member through the third pivot at the first tool end, and the second linkage member being rotatably connected with the tool member through the fourth pivot at the second tool end; a fifth pivot is provided between the first proximal end and the first distal end of the first handle portion, the first linkage member being rotatably connected with the first handle portion through the fifth pivot at the first handle end, and a sixth pivot is provided between the second proximal end and the second distal end of the second handle portion, the second linkage member being rotatably connected with the second handle portion through the sixth pivot at the second handle end; and the tool member is configured to be retractably movable relative to the handle between an operating state and a retracting state under the driving of the handle and the linkage member; wherein: when the tool member is in the operating state, the tool member is deployed beyond the first proximal end and second proximal end; and when the tool member is in the retracting state, the tool member is retracted to a position between the first proximal end and the second proximal end and between the first distal end and the 01279-18001PINZ second distal end; wherein the first handle portion, the second handle portion, the first linkage member, the second linkage member and the tool member substantially constitute a planar link system so that the tool member retractably moves, through the first linkage member and the second linkage member, with opening and closing movements of the first handle portion and the second handle portion.

2. The manual tool having a retractable tool member according to claim 1, wherein the first handle portion and the second handle portion are provided with a linkage mechanism at the first proximal end and the second proximal end.

3. The manual tool having a retractable tool member according to claim 2, wherein the linkage mechanism includes a mutually matched circular-arc concave-convex grooves or splines.

4. The manual tool having a retractable tool member according to claim 2, wherein the first handle portion comprises a first component and a second component, and the second handle portion comprises a third component and a fourth component, the first component having a first extension portion that can match with the third component, the fourth component having a second extension portion that can match with the second component, the first component and the third component being pivotally connected to the first pivot at the first extension portion, and the second component and the fourth component being pivotally connected to the second pivot at the second extension portion, so as to constitute the linkage mechanism and the connector.

5. The manual tool having a retractable tool member according to claim 1, wherein axes of the third pivot and the fourth pivot are coincident.

6. The manual tool having a retractable tool member according to claim 1, wherein the fifth pivot is located at the first proximal end adjacent to the first handle portion; 01279-18001PINZ and the sixth pivot is located at the second proximal end adjacent to the second handle portion.

7. The manual tool having a retractable tool member according to claim 1, wherein when the tool member moves between the operating state and the retracting state, there is a position that the third pivot, the fourth pivot, the fifth pivot, and the sixth pivot are laterally aligned on the same straight line substantially.

8. The manual tool having a retractable tool member according to claim 1, wherein the tool member is a pliers head, the pliers head comprising a first pliers body and a second pliers body, the third pivot being located at a tail portion of the first pliers body, and the fourth pivot being located at a tail portion of the second pliers body; an abutment portion is provided at the first tool end of the first linkage member and the second tool end of the second linkage member; a groove is provided at the tail portion of the first pliers body and the tail portion of the second pliers body; and when the pliers head is in the operating state, the abutment portion abut against the groove.

9. The manual tool having a retractable tool member according to claim 1, wherein the manual tool further comprises a third linkage member that is equivalent to the first linkage member and a fourth linkage member that is equivalent to the second linkage member, the first linkage member being integrated with the third linkage member, and the second linkage member being integrated with the fourth linkage member.

10. A manual tool having a retractable tool member, further comprising a handle and a linkage member, wherein the handle comprises a first handle portion and a second handle portion, the first handle portion having a first proximal end and a first distal end, the second handle portion having a second proximal end and a second distal end, the first handle portion being rotatable about a first pivot located at the first proximal end, the second handle portion being rotatable about a second pivot located at the second proximal end, and 01279-18001PINZ the first pivot and the second pivot being connected through a connector; the linkage member comprises a first linkage member and a second linkage member, the first linkage member having a first tool end and a first handle end, and the second linkage member having a second tool end and a second handle end; the tool member comprises a first tool head and a second tool head opposite to the first tool head, and a third pivot is provided on the tool member, the first linkage member being rotatably connected with the tool member through the third pivot at the first tool end, and the second linkage member being rotatably connected with the tool member through the third pivot at the second tool end; a fourth pivot is provided between the first proximal end and the first distal end of the first handle portion, the first linkage member being rotatably connected with the first handle portion through the fourth pivot at the first handle end, and a fifth pivot is provided between the second proximal end and the second distal end of the second handle portion, the second linkage member being rotatably connected with the second handle portion through the fifth pivot at the second handle end; and the tool member is configured to be retractably movable relative to the handle among a first operating state, a first retracting state, a second operating state, and a second retracting state under the driving of the handle and the linkage member; wherein: when the tool member is in the operating state, the tool member is deployed beyond the first proximal end and second proximal end; and when the tool member is in the retracting state, the tool member is retracted to a position between the first proximal end and the second proximal end and between the first distal end and the second distal end; wherein the first handle portion, the second handle portion, the first linkage member, the second linkage member and the tool member substantially constitute a planar link system so that the tool member retractably moves, through the first linkage member and the second linkage member, with opening and closing movements of the first handle portion and the second handle portion.

11. The manual tool having a retractable tool member according to claim 10, wherein 01279-18001PINZ the first handle portion and the second handle portion are provided with a linkage mechanism at the first proximal end and the second proximal end.

12. The manual tool having a retractable tool member according to claim 11, wherein the linkage mechanism includes mutually matched circular-arc concave-convex grooves or splines.

13. The manual tool having a retractable tool member according to claim 11, wherein the first handle portion comprises a first component and a second component, and the second handle portion comprises a third component and a fourth component, the first component having a first extension portion that can match with the third component, the fourth component having a second extension portion that can match with the second component, the first component and the third component being pivotally connected to the first pivot at the first extension portion, and the second component and the fourth component being pivotally connected to the second pivot at the second extension portion, so as to constitute the linkage mechanism and the connector.

14. The manual tool having a retractable tool member according to claim 10, wherein the fifth pivot is located at the first proximal end adjacent to the first handle portion, the fifth pivot is located at the second proximal end adjacent to the second handle portion.

15. The manual tool having a retractable tool member according to claim 10, wherein when the tool member moves among the first operating state, the second operating state, the first retracting state, and the second retracting state, there is a position that the first pivot, the second pivot, the third pivot, the fourth pivot, and the fifth pivot are laterally aligned on the same straight line substantially.

16. The manual tool having a retractable tool member according to claim 10, wherein when the tool member is in the first operating state, the first tool head is deployed 01279-18001PINZ beyond the first proximal end and the second proximal end; when the tool member is in the first retracting state, the tool member is retracted to a position between the first proximal end and the second proximal end and between the first distal end and the second distal end, and the first tool head faces the first proximal end and the second proximal end; when the tool member is in the second operating state, the second tool head is deployed beyond the first proximal end and the second proximal end; when the tool member is in the second retracting state, the tool member is retracted to a position between the first proximal end and the second proximal end and between the first distal end and the second distal end, and the second tool head faces the first proximal end and the second proximal end.

17. The manual tool having a retractable tool member according to claim 10, wherein the manual tool further comprises a third linkage member that is equivalent to the first linkage member and a fourth linkage member that is equivalent to the second linkage member, the first linkage member being integrated with the third linkage member, and the second linkage being integrated with the fourth linkage member.

18. The manual tool having a retractable tool member according to claim 10, wherein the first tool head and the second tool head are respectively a first pliers head and a second pliers head formed by alternatively hinging a first pliers body and a second pliers body at the third pivot.

19. The manual tool having a retractable tool member according to claim 10, wherein a groove is provided at positions where the first pliers head or the second pliers head abuts against the fourth pivot and the fifth pivot.

20. The manual tool having a retractable tool member according to claim 10, wherein the handle is provided with an arc-shaped groove at the fourth pivot and the fifth pivot, the fourth pivot and the fifth pivot being movable in the arc-shaped groove, so that an opening angle of the handle is more suitable for hold in the operating state, and an 01279-18001PINZ accommodation space in the handle is larger in the retracting state.

21. The manual tool having a retractable tool member according to claim 10, wherein the first tool head is a first tool bit or a first screwdriver bit, and the second tool head is a second tool bit or a second screwdriver bit.

22. The manual tool according to claim 1, substantially as herein described with reference to any embodiment disclosed.

23. The manual tool according to claim 10, substantially as herein described with reference to any embodiment disclosed. 01279-18001PINZ 32 42