Tool with segmented tool handle

Abstract

Tool (10; 10a) with a segmented tool handle (20; 20a), comprising: a first tube (21; 21a) having a first internal hole (211) extending along an axial direction therefrom, and a first fastening hole (212) extending along a radial direction therefrom and communicating with the first internal hole (211); a second tube (22; 22a) having an end inserted into the first internal hole (211), a second internal hole (221) extending along an axial direction therefrom, and a second fastening hole (222) extending along a radial direction therefrom and communicating with the second internal hole (221);and a limit seat (23) arranged in the second inner hole (221) and connected to a fastening element (24), wherein a distal end of the fastening element (24) is connected to the limit seat (23) by thread engagement and a proximal end of the fastening element (24) has a bearing section (241) with a conical surface, wherein the fastening element (24) is configured to move between a fastened position and an unfastened position, wherein the bearing section (241) extends through the second fastening hole (222) and is inserted into the first fastening hole (212) to bear against an inner circumference of the first fastening hole (212) when the fastening element (24) is in the fastened position, and wherein the bearing section (241) is released from the first fastening hole (212) when the fastening element (24) is in the unfastened position.

Description

background

[0001] The present invention relates to a tool with a segmented tool handle.

[0002] US Publication No. 2004 / 0045416 provides a tool with a locking device that achieves the locking effect through the engagement of a ball catch with a recess. However, the ball catch can only be brought into engagement with the recess by the elastic force of a spring. The engagement is influenced by the elastic force of the spring. Brief description of the invention

[0003] It is an object of the present invention to provide a tool with a segmented tool handle. The tool comprises a first tube, a second tube, and a limit seat. The first tube has a first inner hole extending in an axial direction thereof, and a first fastening hole extending in a radial direction thereof and communicating with the first inner hole. The second tube has one end inserted into the first inner hole, a second inner hole extending in an axial direction thereof, and a second fastening hole extending in a radial direction thereof and communicating with the second inner hole. The limit seat is disposed in the second inner hole and connected to a fastener.A distal end of the fastener is threadably connected to the limit seat, and a proximal end of the fastener includes an abutment portion with a conical surface. The fastener is configured to move between a secured and unsecured position. Short description of the drawings Fig. 1 shows a perspective view of a tool with a segmented tool handle according to a first embodiment of the present invention; Fig. 2 shows an exploded perspective view of the tool of Fig. 1; Fig. 3 shows a cross-sectional view of the tool of Fig. 1 and shows the fastening element arranged in the fastened position; Fig. 4 shows a continuation view of Fig. 3 and shows the fastening element arranged in the unfastened position; Fig. 5 shows another cross-sectional view of the tool of Fig. 1 and shows the positioning element arranged in the positioning position; Fig. 6 shows a continuation view of Fig. 5 and shows the positioning element arranged in the release position; and Fig. 7 shows a perspective view of a tool with a segmented tool handle according to a second embodiment of the present invention. Detailed description

[0004] The Fig. 1 to 6 show a tool 10 according to a first embodiment of the present invention. The tool 10 has a segmented tool handle 20 and a tool head 30.

[0005] The segmented tool handle 20 includes a first tube 21, a second tube 22, and a limit seat 23. The first tube 21 has a first inner hole 211 extending along an axial direction thereof, and a first fastening hole 212 extending along a radial direction thereof and communicating with the first inner hole 211. The second tube 22 has one end inserted into the first inner hole 211, a second inner hole 221 extending along an axial direction thereof, and a second fastening hole 222 extending along a radial direction thereof and communicating with the second inner hole 221. The limit seat 23 is disposed in the second inner hole 221 and connected to a fastening member 24.A distal end of the fastener 24 is threadably connected to the limit seat 23, and a proximal end of the fastener 24 includes an abutment portion 241 with a conical surface. The fastener 24 is configured to move between a fastened and an unfastened position. The abutment portion 241 extends through the second fastening hole 222 and is inserted into the first fastening hole 212 to abut an inner periphery of the first fastening hole 212 when the fastener 24 is in the fastened position. The abutment portion 241 is released from the first fastening hole 212 when the fastener 24 is in the unfastened position.

[0006] Furthermore, the inner circumference of the first fastening hole 212 defines a fastening hole diameter DL along a radial direction of the fastening element 24. The limit seat 23 has a threaded hole 231. The distal end of the fastening element 24 has a threaded portion 242 threadably connected to the threaded hole 231. The threaded portion 242 and the abutment portion 241 are respectively disposed at two opposite ends of the fastening element 24. The abutment portion 241 has a first end opposite the threaded portion 242, and the first end defines a first taper diameter DC1 along the radial direction of the fastening element 24. The abutment portion 241 further has a second end adjacent to the threaded portion 242, and the second end defines a second taper diameter DC2 along the radial direction of the fastening element 24.The mounting hole diameter DL is larger than the first cone diameter DC1 and smaller than the second cone diameter DC2.

[0007] The limit seat 23 also has a receiving hole 232 that communicates with the threaded hole 231. A diameter of the threaded hole 231 is smaller than the second cone diameter DC2. A shoulder portion 233 is formed between the threaded hole 231 and the receiving hole 232, and a stop portion 243 is formed between the abutment portion 241 and the threaded portion 242. When the fastening element 24 is in the unfastened position, the stop portion 243 abuts the shoulder portion 233, and the abutment portion 241 is disposed in the receiving opening 232 and the second fastening hole 222.

[0008] A driven slot 244 is formed on an end surface of the proximal end of the fastening element 24, which is adjacent to the abutment portion 241 and has a non-circular cross-sectional shape.

[0009] The first tube 21 further includes a first positioning hole 213 communicating with the first inner hole 211 along the radial direction thereof. The second tube 22 further includes a second positioning hole 223 communicating with the second inner hole 221 along the radial direction thereof. The restricting seat 23 further includes a positioning opening 234, and a positioning member 25 and a biasing member 26 are disposed in the positioning opening 234. The positioning member 25 is movable between a positioning position and a release position. The positioning member 25 is inserted through the first positioning hole 213 and the second positioning hole 223 when the positioning member 25 is in the positioning position. The positioning member 25 is released from the first positioning hole 213 when the positioning member 25 is in the release position.

[0010] When the fastening element 24 is in the unfastened position and the positioning element 25 is in the release position, the second tube 22 is detachable from the first tube 21, and one end of the biasing element 26 abuts a bottom of the positioning opening 234, and the other end of the biasing element 26 abuts the positioning element 25. The biasing element 26 biases the positioning element 25 into the positioning position.

[0011] Furthermore, the second positioning hole 223 defines a positioning hole diameter DP. A wide portion 251 having a first outer diameter D1 and a narrow portion 252 having a second outer diameter D2 are provided on an outer periphery of the positioning element 25. The diameter DP of the positioning hole is larger than the second outer diameter D2 and smaller than the first outer diameter D1. The narrow portion 252 extends through the second positioning hole 223, and the wide portion 251 is permanently disposed in the positioning opening 234.

[0012] On an outer periphery of the first tube 21, an inclined recess 214 is formed which is connected to the first positioning hole 213, and the inclined recess 214 has an inclined surface which extends neither parallel nor perpendicular to the first tube 21.

[0013] In this embodiment, the limit seat 23 can be tightly mounted in the second inner hole 221. The tool head 30 can be a prying tool head, and one end of the first tube 21 opposite the second tube 22 has a hexagonal tube structure that can be connected to the tool head 30 in a sleeve-like manner.

[0014] Fig. Figure 7 shows a tool 10a according to a second embodiment of the present invention. The tool 10a has a handle 20a, a first tool head 30a, and a second tool head 40a. One end of the first tube 21a, which is opposite the second tube 22a, has a round tubular structure that can be connected in a sleeve-like manner to the first tool head 30a, and one end of the second tube 22a, which is opposite the first tube 21a, has a round tubular structure that can be connected in a sleeve-like manner to the second tool head 40a. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] US 2004 / 0045416

[0002]

Claims

[1] Tool (10; 10a) with a segmented tool handle (20; 20a), with: a first tube (21; 21a) having a first inner hole (211) extending along an axial direction thereof and a first fixing hole (212) extending along a radial direction thereof and communicating with the first inner hole (211); a second tube (22; 22a) having one end inserted into the first inner hole (211), a second inner hole (221) extending along an axial direction thereof, and a second fixing hole (222) extending along a radial direction thereof and communicating with the second inner hole (221); and a limiting seat (23) arranged in the second inner hole (221) and connected to a fastening element (24), wherein a distal end of the fastening element (24) is connected to the limiting seat (23) by threaded engagement and a proximal end of the fastening element (24) has an abutment portion (241) with a conical surface, wherein the fastening element (24) is configured to move between a fastened position and an unfastened position, wherein the abutment portion (241) extends through the second fastening hole (222) and is inserted into the first fastening hole (212) to abut an inner periphery of the first fastening hole (212) when the fastening element (24) is in the fastened position, and wherein the abutment portion (241) is released from the first fastening hole (212) when the fastening element (24) is in the unfastened position. [2] The tool (10; 10a) according to claim 1, wherein the inner circumference of the first fastening hole (212) defines a fastening hole diameter (DL) along a radial direction of the fastening element (24), wherein the limiting seat (23) has a threaded hole (231), wherein the distal end of the fastening element (24) has a threaded portion (242) connected by threaded engagement with the threaded hole (231), wherein the threaded portion (242) and the abutment portion (241) are respectively arranged at two opposite ends of the fastening element (24), wherein the abutment portion (241) has a first end opposite the threaded portion (242), and the first end defines a first cone diameter (DC1) along the radial direction of the fastening element (24),wherein the abutment portion (241) further has a second end adjacent to the threaded portion (242), the second end defining a second cone diameter (DC2) along the radial direction of the fastener (24), and wherein the fastening hole diameter (DL) is larger than the first cone diameter (DC1) and smaller than the second cone diameter (DC2). [3] The tool (10; 10a) according to claim 2, wherein the limit seat (23) further comprises a receiving hole (232) communicating with the threaded hole (231), a diameter of the threaded hole (231) being smaller than the second cone diameter (DC2), a shoulder portion (233) being formed between the threaded hole (231) and the receiving hole (232), a stop portion (243) being formed between the abutment portion (241) and the threaded portion (242), wherein, when the fastening element (24) is in the unfastened position, the stop portion (243) abuts the shoulder portion (233) and the abutment portion (241) is arranged in the receiving hole (232) and the second fastening hole (222). [4] Tool (10; 10a) according to claim 1, wherein a driven slot (244) having a non-circular cross-sectional shape is formed at the proximal end of the fastening element (24) adjacent to the abutment portion (241). [5] The tool (10; 10a) according to claim 1, wherein the first tube (21; 21a) further comprises a first positioning hole (213) communicating with the first inner hole (211) along a radial direction thereof, wherein the second tube (22; 22a) further comprises a second positioning hole (223) communicating with the second inner hole (221) along a radial direction thereof, wherein the limiting seat (23) further comprises a positioning opening (234), and a positioning member (25) and a biasing member (26) are arranged in the positioning opening (234), wherein the positioning member (25) is movable between a positioning position and a release position, wherein the positioning member (25) is inserted through the first positioning hole (213) and the second positioning hole (223) when the positioning member (25) is in the positioning position,wherein the positioning element (25) is released from the first positioning hole (213) when the positioning element (25) is in the release position, wherein, when the fastening element (24) is in the unfastened position and the positioning element (25) is in the release position, the second tube (22; 22a) is detachable from the first tube (21; 21a) and one end of the biasing element (26) abuts a bottom of the positioning opening (234) and the other end of the biasing element (26) abuts the positioning element (25) and the biasing element (26) biases the positioning element (25) into the positioning position. [6] The tool (10; 10a) according to claim 5, wherein the second positioning hole (223) defines a positioning hole diameter (DP), wherein an outer periphery of the positioning element (25) has a wide portion (251) with a first outer diameter (D1) and a narrow portion (252) with a second outer diameter (D2), wherein the positioning hole diameter (DP) is larger than the second outer diameter (D2) and smaller than the first outer diameter (D1), wherein the narrow portion (252) extends through the second positioning hole (223), and wherein the wide portion (251) is permanently arranged in the positioning opening (234). [7] The tool (10; 10a) according to claim 5, wherein an oblique recess (214) is provided on an outer periphery of the first tube (21; 21a) and is connected to the first positioning hole (213), and wherein the oblique recess (214) has an oblique surface extending neither parallel nor perpendicular to the first tube (21; 21a). [8] Tool (10; 10a) according to claim 1, wherein the limit seat (23) is mounted in a tight manner in the second inner hole (221). [9] Tool (10) according to claim 1, further comprising: a tool head (30) which is a breaking tool head, wherein one end of the first tube (21) opposite the second tube (22) has a hexagonal tube structure which can be connected to the tool head (30) in a sleeve-like manner. [10] Tool (10a) according to claim 1, further comprising: a first tool head (30a), wherein one end of the first tube (21a) opposite the second tube (22a) has a round tube structure which can be connected in a sleeve-like manner to the first tool head (30a); and a second tool head (40a), wherein one end of the second tube (22a) opposite the first tube (21a) has a round tube structure which can be connected to the second tool head (40a) in a sleeve-like manner.

Images