Telescopic handheld tool
By internalizing the pulling components in a telescopic handheld tool and using multiple pulleys and groove guides, the problems of inconvenience and vulnerability caused by external guides of the pulling rope in the prior art are solved, achieving smaller minimum length and higher durability.
Patent Information
- Application Number
- CN202510191082.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-02-26
- Filing Date
- 2025-02-20
- Publication Date
- 2025-08-26
AI Technical Summary
In existing telescopic handheld tools, the pull rope is usually guided outside the tube, resulting in a large minimum length, inconvenient operation, and easy damage.
The pulling member is arranged inside the tool, redirected by a plurality of deflecting pulleys and lifting pulleys, combining internal groove guides and insulating tube protection to achieve internal arrangement and reliable operation of the pulling member.
Reduces friction loss, improves operational convenience, protects pulling components from external damage, and enhances the durability and user experience of the tool.
Smart Images

Figure CN120533646A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a telescopic handheld tool, in particular to a telescopic trimmer. Background Art
[0002] Telescopic hand tools with two tubes and an integrated pull cord or pull member are well known. In many telescopic hand tools, the pull cord is visible and guided in a groove formed in the tube. Telescopic hand tools with three tubes typically have the pull cord extending outside the tubes. The three tubes allow the telescopic hand tool to have a smaller minimum length and a larger maximum length. Summary of the Invention
[0003] The object of the present invention is to provide a telescopic hand tool having at least three tubes, wherein the pulling cord or the pulling member is arranged substantially inside the telescopic hand tool and wherein the telescopic hand tool is easy for a user to operate.
[0004] The object of the present invention is achieved by a telescopic hand tool according to claim 1 .
[0005] The present invention provides a telescopic handheld tool, in particular a telescopic trimmer, wherein the telescopic handheld tool comprises:
[0006] - outer tube,
[0007] - at least one intermediate tube capable of sliding inside the outer tube,
[0008] - an inner tube that is able to slide inside the intermediate tube,
[0009] at least one tool head connected or connectable to the front end of the inner tube,
[0010] a rear handle, which is detachably arranged at the rear end of the outer tube,
[0011] a pulling sleeve that can slide along the outer tube,
[0012] a pulling member having a flat cross section and arranged substantially inside the tubes, wherein one end portion of the pulling member is connected to a fixing point at the front end of the outer tube and the other end portion of the pulling member is connected to the pulling sleeve,
[0013] - a further pulling member extending between a joint arranged at the pulling member and the rear handle,
[0014] - deflection pulleys arranged at the rear ends of the tubes and at the front ends of the outer tube and the intermediate tube, wherein the deflection pulleys are provided for redirecting the pulling member,
[0015] a lifting pulley slidable within the inner tube and connected to the tool head by a rod, rope or the like, wherein the lifting pulley is arranged for redirecting the pulling member, and
[0016] - an elongated groove formed in the outside of the outer tube and extending parallel to said outer tube,
[0017] - wherein the first part and the second part of the pulling member are arranged and guided relative to each other in the groove, and
[0018] - wherein the first portion of the pulling member is connected to the pulling sleeve via a fixing.
[0019] The pulling member according to the present invention can specifically be a pulling belt or a pulling rope. Preferably, the pulling member can be formed as a flat pulling belt with a rectangular cross-section. Alternatively, the pulling member can be formed as a round rope.
[0020] The pulling member can be moved directly by the pulling sleeve or by the rear handle via the further pulling member. Thus, the tool head can be operated by the pulling sleeve or the rear handle. If the rear handle is pulled, the pulling sleeve remains in its position. As a result, two deflection pulleys and the deflection can be omitted compared to a pulling sleeve actuation using only one integral pulling member. As a result, rear handle operation shows particularly significant, smaller friction losses. One of the first and second parts of the pulling member is covered by the other, so that only one part of the pulling member is visible. The arrangement of these deflection pulleys allows the other parts of the pulling member to be arranged inside the tubes. The deflection pulleys at the outer tube allow the first and second parts of the pulling member to move in opposite directions within the groove.
[0021] Preferably, the first portion of the pulling member extends between the pulling sleeve and a first deflection pulley arranged at the front end of the outer tube, and the second portion of the pulling member extends between the first deflection pulley and a second deflection pulley arranged at or near the rear end of the outer tube.
[0022] Furthermore, the joint may be arranged in a third portion of the pulling member, wherein said third portion of the pulling member extends between the second deflection pulley and the lifting pulley, wherein preferably the joint is at least one of a seam, a knot, an additional fastening part and a glue point.
[0023] According to an exemplary embodiment of the present invention, the joint may be at least one of a seam, a knot, an additional fastening element, and a glue point. Forming the joint as a seam or a glue point may provide the following advantages: such a joint is reliable and easy to manufacture. The additional fastening element may be easily replaceable and easy to maintain. The knot may be easily opened and removed.
[0024] In particular, the first portion of the pulling member is fixed to the pulling sleeve by at least one clamping connection.
[0025] Preferably, the insulating tube at least partially surrounds the outer tube, wherein the groove is formed in the insulating tube, and wherein the groove preferably has a rectangular cross-section corresponding to the combined cross-section of the mutually arranged first and second parts of the pulling member. For example, the insulating tube is made of plastic, which allows for easy production. Alternatively, the outer tube and the insulating tube are formed as a single-piece component.
[0026] Furthermore, an end sleeve can be arranged at the rear end of the outer tube, wherein preferably the rear handle is detachably mounted at the end sleeve.
[0027] Additionally, a stop cam may be attached to the outside of the outer tube, wherein the pulling sleeve is slidable between said stop cam and the end sleeve.
[0028] Furthermore, the telescopic hand tool may include at least two telescopic joints, wherein a first telescopic joint connects the outer tube and the intermediate tube, and a second telescopic joint connects the intermediate tube and the inner tube.
[0029] Providing the telescopic hand tool according to the invention with the two telescopic joints can provide the following advantages: the tube guides between the two tubes have no relative movement relative to each other and no play. In addition, the provision of the two telescopic joints prevents the materials of the two tubes from rubbing directly against each other. Advantageously, fretting can thus be prevented. In addition, the first telescopic joint and / or the second telescopic joint include a deflection portion for adapting the length during telescoping, as well as end stops, so that the two tubes cannot be completely separated from each other. Arranging the deflection pulley and the guide pulley in the telescopic joint can provide the following advantages: the pulling member distance can be optimized and the dimensions of the telescopic joint can therefore be minimized. In addition, the deflection of the pulling member according to the invention can provide the following advantages: a pulling sleeve can be used for cutting.
[0030] In particular, a plastic tube partially surrounds the outer tube and covers a portion of the groove, wherein preferably the plastic tube extends between the first telescopic joint and the stop cam. The plastic tube minimizes the visible portion of the pulling member.
[0031] Furthermore, the deflection pulleys and / or the lifting pulley may be arranged for redirecting the pulling member by approximately 180 degrees.
[0032] In particular, at least one deflection pulley has a dedicated additional guide pulley, so that the pulling element runs in an S-shaped manner between the additional guide pulley and the corresponding deflection pulley. The combination of the deflection pulley and the corresponding guide pulley allows the distance between the different parts of the pulling element to be reduced, preferably minimized. As a result, the cross-section of the corresponding tube can be reduced, preferably minimized.
[0033] Furthermore, at least one foam element can be provided for guiding the pulling member, wherein the foam element corresponds to a deflection pulley so that the pulling member is guided between the foam element and the deflection pulley. The foam element contributes to a reliable movement of the pulling member.
[0034] Preferably, the foam element is arranged relative to the deflecting pulley in such a way that the curved section of the pull member is guided between the foam element and the deflecting pulley.
[0035] In particular, the foam element corresponds to the second deflection pulley, so that the pulling member is guided between the foam element and the second deflection pulley.
[0036] Furthermore, the telescopic hand tool may include one or more additional intermediate tubes, wherein the additional intermediate tubes include at least two deflection pulleys disposed at the front and rear ends of the additional intermediate tubes, respectively, and wherein the additional intermediate tubes are disposed between the outer tube and the intermediate tube and / or between the intermediate tube and the inner tube. The telescopic hand tool can be expanded by the additional intermediate tubes, thereby increasing the ratio between the maximum length and the minimum length of the telescopic hand tool.
[0037] According to an alternative embodiment of the invention, the additional pulling member may be omitted, wherein the pulling member extends between the fixing point at the front end of the outer tube and the rear handle, and wherein the rear handle and the pulling sleeve are connected to the same part of the pulling member.
[0038] The novel and inventive features of the present invention are set forth in the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS
[0039] The present invention will now be described in more detail with reference to the accompanying drawings, in which:
[0040] Figure 1 illustrates a schematic cross-sectional side view of a telescopic hand tool according to a first embodiment of the present invention,
[0041] Figure 2illustrates a schematic enlarged partial sectional side view of a telescopic joint of a telescopic hand tool according to a first embodiment of the present invention,
[0042] Figure 3 illustrates a schematic enlarged partial sectional side view of a pulling sleeve of a telescopic hand tool according to a first embodiment of the present invention,
[0043] Figure 4 illustrates a schematic cross-sectional view of a telescopic hand tool according to a first embodiment of the present invention,
[0044] Figure 5 illustrates a schematic enlarged partial sectional side view of an end sleeve of a telescopic hand tool according to a first embodiment of the present invention,
[0045] Figure 6 illustrates a schematic cross-sectional side view of a telescopic hand tool with an operated rear handle according to a second embodiment of the present invention,
[0046] Figure 7 illustrates a schematic enlarged cross-sectional side view of a telescopic hand tool according to a second embodiment of the present invention,
[0047] Figure 8 illustrates a schematic cross-sectional view of a telescopic hand tool according to a second embodiment of the present invention, and
[0048] Figure 9 A schematic cross-sectional side view of a telescopic hand tool with an operated pulling sleeve according to a second embodiment of the present invention is illustrated. DETAILED DESCRIPTION
[0049] Figure 1 Illustrated is a schematic cross-sectional side view of a telescopic hand tool 10 according to a first embodiment of the invention.In this example, the telescopic hand tool 10 is a telescopic trimmer.
[0050] The telescopic hand tool 10 includes an outer tube 12, an intermediate tube 14, and an inner tube 16. The inner tube 16 is slidable within the intermediate tube 14 along their common longitudinal axis. In turn, the intermediate tube 14 is slidable within the outer tube 12 along their common longitudinal axis.
[0051] A tool head 18 is arranged at the front end of the telescopic hand tool 10. The tool head 18 is connected to the front end of the inner tube 16. In this example, the tool head 18 comprises a pair of pruning shears. A first telescopic joint 20 is arranged at the front end of the outer tube 12. The first telescopic joint 20 connects the outer tube 12 and the intermediate tube 14. In a similar manner, a second telescopic joint is arranged at the front end of the intermediate tube 14. The second telescopic joint is arranged at the front end of the inner tube 16. Figure 1The intermediate tube 14 and the inner tube 16 are connected via the second telescopic joint.
[0052] A pulling sleeve 22 surrounds the outer tube 12. The pulling sleeve 22 can slide along the outer tube 12. A stop cam 24 is attached to the outside of the outer tube 12 to limit the sliding range of the pulling sleeve 22. An end sleeve 26 surrounds the rear end of the outer tube 12. The pulling sleeve 22 can slide along the outer tube 12 between the stop cam 24 and the end sleeve 26. A rear handle 28 is detachably mounted on the end sleeve 26.
[0053] The pulling member 30 is arranged substantially inside the tubes 12, 14, and 16. One end of the pulling member 30 is connected to the rear handle 28, while the other end of the pulling member 30 is connected to a fixing point 52. The fixing point 52 is arranged at the front end of the outer tube 12 and / or at the first telescopic joint 20. The pulling member 30 has a flat cross-section. The first portion of the pulling member 30 extends from the rear handle 28 to a first deflection pulley 32 arranged in or at the first telescopic joint 20. The first deflection pulley 32 is arranged outside the outer tube 12. The first portion of the pulling member 30 is connected to the pulling sleeve 22 via a fixing 46. The first deflection pulley 32 redirects the pulling member 30.
[0054] The second portion of the pulling member 30 extends from the first deflection pulley 32 to the second deflection pulley 34 arranged in the end sleeve 26. The first and second portions of the pulling member 30 extend parallel to each other in the groove 40, wherein the large-area sides of the first and second portions face each other. The groove 40 is formed in the outer side of the outer tube 12 or in the insulating tube 42, as shown in FIG. Figure 4 Furthermore, the groove 40 extends parallel to the longitudinal axis of the outer tube 12. The second deflection pulley 34 redirects the pulling member 30 again.
[0055] The third portion of the pulling member 30 extends from the second deflection pulley 34 to Figure 1 The lifting pulley is not shown in the drawing. The lifting pulley can move inside the inner tube. The lifting pulley is connected to the tool head 18 by a rod, a rope or another belt. The lifting pulley redirects the pulling member 30 again.
[0056] The fourth portion of the pulling member 30 extends from the lifting pulley to the third deflection pulley. The third deflection pulley is arranged at the rear end of the inner tube 16. Figure 1 A third deflection pulley redirects the pulling member 30 again.
[0057] The fifth portion of the pulling member 30 extends from the third deflection pulley to the fourth deflection pulley arranged at the front end of the intermediate tube 14. Figure 1A fourth deflection pulley redirects the pulling element 30 again.
[0058] The sixth section of the pulling member 30 extends from the fourth deflection pulley to the fifth deflection pulley 36. The fifth deflection pulley 36 is arranged at the rear end of the intermediate tube 14. The fifth deflection pulley 36 again redirects the pulling member 30. The end section of the pulling member 30 is connected to the front end of the outer tube 12 and / or to the first telescopic joint 20 at a fixing point 52.
[0059] The first and second parts of the pulling member 30 are guided in a groove 40 which is formed on the outside of the outer tube 12 and which extends parallel to the longitudinal axis of the outer tube 12. The first and second parts of the pulling member 30 are arranged relative to each other so that only the first part of the pulling member 30 is visible, while the second part of the pulling member 30 is covered by the first part.
[0060] The third portion of the pulling member 30 extends inside the outer tube 12, the intermediate tube 14, and the inner tube 16 along the longitudinal axes of the outer tube 12, the intermediate tube 14, and the inner tube 16. The fourth portion of the pulling member 30 extends inside the inner tube 16 along the longitudinal axis of the inner tube 16. The fifth and sixth portions of the pulling member 30 extend between the inner tube 16 and the intermediate tube 14 along the longitudinal axes of the inner tube 16 and the intermediate tube 14.
[0061] Figure 2 A schematic enlarged partial cross-sectional side view of the telescopic joint 20 of the telescopic hand tool 10 according to the first embodiment of the present invention is illustrated. Figure 2 Shown Figure 1 Section A in.
[0062] The first telescopic joint 20 is arranged at the front end of the outer tube 12 and connects the outer tube 12 and the intermediate tube 14. The fifth deflection pulley 36 is arranged within the telescopic joint 20 and at the rear end of the intermediate tube 14.
[0063] A plastic tube 44 extends between the telescopic joint 20 and the stop cam 24. The plastic tube 44 surrounds the outer tube 12 between the telescopic joint 20 and the stop cam 24. The plastic tube 44 covers the groove 40 between the telescopic joint 20 and the stop cam 24. Therefore, the pulling member 30 is not visible between the telescopic joint 20 and the stop cam 24.
[0064] Figure 3 A schematic enlarged partial cross-sectional side view of the pulling sleeve 22 of the telescopic hand tool 10 according to the first embodiment of the present invention is illustrated. Figure 3 Shown Figure 1 Section B in.
[0065] A first portion of the pulling member 30 is connected to the pulling sleeve 22 by a fixing 46 so that the first portion of the pulling member 30 is moved directly by sliding the pulling sleeve 22. The other portion of the pulling member 30 is moved indirectly by sliding the pulling sleeve 22.
[0066] Figure 4 A schematic cross-sectional view of a telescopic hand tool 10 according to a first embodiment of the present invention is illustrated. Figure 4 Shown along Figure 1 Cross section of plane CC in .
[0067] The insulating tube 42 surrounds the outer tube 12. The groove 40 is formed in the insulating tube 42. Alternatively, the groove 40 may be formed in the outer side of the outer tube 12, such as Figure 1 The first and second parts of the pulling member 30 are guided in the groove 40, wherein the first part of the pulling member 30 covers the second part of the pulling member 30. Only the first part of the pulling member 30 is visible between the pulling sleeve 22 and the end sleeve 26. Alternatively, the insulating tube 42 and the outer tube 12 are formed as a single-piece part.
[0068] Figure 5 A schematic enlarged cross-sectional side view of the end sleeve 26 of the telescopic hand tool 10 according to the first embodiment of the present invention is illustrated. Figure 5 Shown Figure 1 Section D in.
[0069] A second deflection pulley 34 is arranged in the end sleeve 26 and redirects the pulling member 30. In addition, a guide pulley 38 is arranged in the end sleeve 26. The guide pulley 38 reduces the distance between the first and second parts of the pulling member 30, thereby avoiding friction between the first and second parts of the pulling member 30.
[0070] Preferably, each deflection pulley 32 , 34 and 36 has a dedicated further guide pulley, wherein the pulling element 30 runs in an S-shape between each deflection pulley 32 , 34 , 36 and the corresponding further guide pulley.
[0071] If the rear handle 28 is pulled in the first embodiment of the present invention, the pulling sleeve 22 moves simultaneously with the rear handle 28. In addition, if the pulling sleeve 22 moves, the pulling member 30 constitutes or forms a sling between the pulling sleeve 22 and the end sleeve 26. The operating force of the rear handle 28 shows substantially the same friction loss as the operating force of the pulling sleeve 22.
[0072] Figure 6 A schematic cross-sectional side view of the telescopic hand tool 10 with the rear handle 28 operated according to the second embodiment of the present invention is illustrated.
[0073] The telescopic hand tool 10 according to the second embodiment is substantially the same as the telescopic hand tool 10 of the first embodiment. Furthermore, the telescopic hand tool 10 of the second embodiment includes an additional pulling member 48. A first end of the additional pulling member 48 is connected to the third portion of the pulling member 30. A second end of the additional pulling member 48 is connected to the rear handle 28. The portion of the pulling member 30 between the pulling sleeve 22 and the rear handle 28 is omitted in the second embodiment.
[0074] In this example, the first end of the further pull member 48 is connected to the third portion of the pull member 30 by a seam 50. Alternatively, the first end of the further pull member 48 is glued to, connected to by additional fastening parts, or connected to the third portion of the pull member 30 in a knotted manner.
[0075] exist Figure 6 In the embodiment of the present invention, the rear handle 28 is pulled away from the end sleeve 26 in order to operate the tool head 18. As a result, the further pulling member 48 is stretched. The portion between the seam 50 and the end portion of the pulling member 30 is also stretched. Conversely, the portion of the pulling member 30 between the seam 50 and the second deflection pulley 34 is folded. If the rear handle 28 is pulled, the pulling sleeve 22 remains in its position.
[0076] Furthermore, a foam element 54 is provided for guiding the pull member 30 and for fixing the pull member 30 on the deflection pulley 34. In this example, the foam element 54 corresponds to the second deflection pulley 34, so that the pull member 30 is guided between the foam element 54 and the second deflection pulley 34.
[0077] Preferably, the foam element 54 is arranged relative to the second deflection pulley 34 such that the curved section of the pulling member 30 is guided between the foam element 54 and the second deflection pulley 34. The foam element 54 contributes to a reliable movement of the pulling member 30. Optionally, the deflection pulley 32 and / or the deflection pulley 36 and / or the guide pulley 38 can be provided with an additional foam element 54.
[0078] Figure 7 A schematic enlarged cross-sectional side view of a telescopic hand tool 10 according to a second embodiment of the present invention is illustrated. Figure 7 Shown Figure 6 Section E in.
[0079] Figure 7 , the connection between the further pulling member 48 and the pulling member 30 is shown. Preferably, the first end of the further pulling member 48 is connected to the third portion of the pulling member 30 via a seam 50. Alternatively, the first end of the further pulling member 48 is glued to the third portion of the pulling member 30.
[0080] Figure 8 A schematic cross-sectional view of a telescopic hand tool 10 according to a second embodiment of the present invention is illustrated. Figure 8 Shown along Figure 6 Cross section in plane FF.
[0081] The insulating tube 42 surrounds the outer tube 12. Alternatively, the insulating tube 42 and the outer tube 12 are formed as a single-piece component. A groove 40 is formed in the insulating tube 42. The second portion of the pulling member 30 is guided in the groove 40 between a fixing element 46 arranged in the pulling sleeve 22 and the end sleeve 26. In the second embodiment, the first portion of the pulling member 30 extends only between the first deflection pulley 32 and the fixing element 46 arranged in the pulling sleeve 22.
[0082] Figure 9 A schematic cross-sectional side view of a telescopic hand tool 10 with an operated pulling sleeve 22 according to a second embodiment of the present invention is illustrated.
[0083] exist Figure 9 In the embodiment of the present invention, the pull sleeve 22 is pulled away from the stop cam 24. As a result, the entire pull member 30 is stretched. On the contrary, the other pull member 48 is folded. The rear handle 28 is attached to the end sleeve 26.
[0084] If the rear handle 28 is pulled in the second embodiment of the present invention, the pulling sleeve 22 remains in its position. In addition, according to the second embodiment, the two deflections of the pulling member 30 for operating the pulling sleeve 22 can be omitted. Therefore, the rear handle 28 shows reduced friction losses, in particular significantly reduced friction losses.
[0085] According to the present invention, the tool head 18 can be operated by pulling the pulling sleeve 22 and / or the rear handle 28. If the rear end of the telescopic hand tool 10 is supported by the user's body or in a suitable position, the pulling sleeve 22 can be pulled by the user's hands. Only a first portion of the pulling member 30 is visible between the stop cam 24 and the end sleeve 26. The second portion of the pulling member 30 is covered by the first portion of the pulling member 30. The arrangement of the deflection pulleys allows the remaining portion of the pulling member 30 to be arranged inside the outer tube 12, the intermediate tube 14, and the inner tube 16 of the telescopic hand tool 10. The pulling member 30 is largely invisible and thus protected from sunlight, dust, and mechanical damage.
[0086] Preferably, the outer tube 12 , the intermediate tube 14 and the inner tube 16 are made of metal, specifically aluminum.
[0087] The embodiment of the telescopic hand tool 10 described above includes three tubes: an outer tube 12, an intermediate tube 14, and an inner tube 16. In general, the telescopic hand tool 10 may include one or more intermediate tubes. The additional intermediate tubes each include two deflection pulleys. One deflection pulley is arranged at the front end of the additional intermediate tube, and the other deflection pulley is arranged at the rear end of the additional intermediate tube.
[0088] Although exemplary embodiments of the present invention have been described herein with reference to the accompanying drawings, it should be understood that the present invention is not limited to those precise embodiments and that various other changes and modifications may be implemented therein by those skilled in the art without departing from the scope of the present invention. All such changes and modifications are intended to be included within the scope of the present invention as defined by the appended claims.
[0089] Figure Numbers
[0090] 10 telescopic hand tools
[0091] 12 outer tube
[0092] 14 intermediate tube
[0093] 16 inner tube
[0094] 18 tool heads
[0095] 20 telescopic joints
[0096] 22 Pull the sleeve
[0097] 24 stop cam
[0098] 26 end sleeve
[0099] 28 rear handle
[0100] 30 Pulling parts
[0101] 32 first deflection pulley
[0102] 34 Second deflection pulley
[0103] 36 Fifth deflection pulley
[0104] 38 guide pulley
[0105] 40 grooves
[0106] 42 insulation tube
[0107] 44 plastic tube
[0108] 46 fixings
[0109] 48 Additional pulling components
[0110] 50 seams
[0111] 52 fixed points
[0112] 54 foam elements
Claims
1. A telescopic handheld tool (10), in particular a telescopic trimmer, the telescopic handheld tool (10) comprising: - outer tube (12), - at least one intermediate tube (14) capable of sliding inside said outer tube (12), - an inner tube (16) which is able to slide inside the intermediate tube (14), at least one tool head (18) connected or connectable to the front end of the inner tube (16), a rear handle (28) which is detachably arranged at the rear end of the outer tube (12), - a pulling sleeve (22) which is slidable along the outer tube (12), a pulling member (30) having a flat cross section and arranged substantially inside the tubes (12, 14, 16), wherein one end portion of the pulling member (30) is connected to a fixing point (52) at the front end of the outer tube (12) and the other end portion of the pulling member (30) is connected to the pulling sleeve (22), - a further pulling member (48) extending between the rear handle (28) and a joint (50) arranged at the pulling member (30), a plurality of deflection pulleys (32, 34, 36) arranged at the rear ends of the tubes (12, 14, 16) and at the front ends of the outer tube (12) and the intermediate tube (14), wherein the deflection pulleys (32, 34, 36) are provided for redirecting the pulling member (30), a lifting pulley capable of sliding inside the inner tube (16) and connected to the tool head (18) by a rod, a rope or the like, wherein the lifting pulley is arranged to redirect the pulling member (30), and - an elongated groove (40) formed in the outside of the outer tube (12) and extending parallel to the outer tube (12), - wherein the first and second parts of the pulling member (30) are arranged and guided relative to each other in the groove (40), and - wherein the first portion of the pulling member (30) is connected to the pulling sleeve (22) via a fixing (46).
2. The telescopic hand tool (10) according to claim 1, It is characterized by: The first portion of the pulling member (30) extends between the pulling sleeve (22) and a first deflection pulley (32) arranged at the front end of the outer tube (12), while the second portion of the pulling member (30) extends between the first deflection pulley (32) and a second deflection pulley (34) arranged at or near the rear end of the outer tube (12).
3. The telescopic hand tool (10) according to claim 1 or 2, It is characterized by: The joint (50) is arranged in a third portion of the pulling member (30), wherein the third portion of the pulling member (30) extends between the second deflection pulley (34) and the lifting pulley, wherein preferably the joint (50) is at least one of a seam, a knot, an additional fastening part and a glue point.
4. The telescopic hand tool (10) according to any one of the preceding claims, It is characterized by: The first portion of the pulling member (30) is fixed to the pulling sleeve (22) by at least one clamping connection.
5. The telescopic hand tool (10) according to any one of the preceding claims, It is characterized by: An insulating tube (42) at least partially surrounds the outer tube (12), wherein the groove (40) is formed in the insulating tube (42), and wherein preferably, the groove (40) has a rectangular cross section corresponding to the total cross section of the mutually arranged first and second parts of the pulling member (30).
6. Telescopic hand tool (10) according to any one of the preceding claims, It is characterized by: An end sleeve (26) is arranged at the rear end of the outer tube (12), wherein preferably, the rear handle (28) is detachably mounted on the end sleeve (26).
7. The telescopic hand tool (10) according to claim 6, It is characterized by: A stop cam (24) is attached to the outside of the outer tube (12), wherein the pulling sleeve (22) is slidable between the stop cam (24) and the end sleeve (26).
8. The telescopic hand tool (10) according to any one of the preceding claims, It is characterized by: The telescopic hand tool (10) comprises at least two telescopic joints (20), wherein a first telescopic joint (20) connects the outer tube (12) and the intermediate tube (14), and a second telescopic joint connects the intermediate tube (14) and the inner tube (16).
9. The telescopic hand tool (10) according to any one of the preceding claims, It is characterized by: A plastic tube (44) partially surrounds the outer tube (12) and covers a portion of the groove (40), wherein preferably, the plastic tube (44) extends between the first telescopic joint (20) and the stop cam (24).
10. The telescopic hand tool (10) according to any one of the preceding claims, It is characterized by: The deflection pulleys (32, 34, 36) and / or the lifting pulley are configured to redirect the pulling member (30) by approximately 180 degrees.
11. The telescopic hand tool (10) according to any one of the preceding claims, It is characterized by: At least one deflection pulley (32, 34, 36) has a dedicated additional guide pulley, so that the pulling element (30) runs in an S-shape between the additional guide pulley and the corresponding deflection pulley (32, 34, 36).
12. The telescopic hand tool (10) according to any one of the preceding claims, It is characterized by: At least one foam element (54) is provided for guiding the pulling member (30), wherein the foam element (54) corresponds to a deflection pulley (34), so that the pulling member (30) is guided between the foam element (54) and the deflection pulley (34).
13. The telescopic hand tool (10) according to claim 12, It is characterized by: The foam element (54) is arranged relative to the deflecting pulley (34) such that the curved section of the pull member (30) is guided between the foam element (54) and the deflecting pulley (34).
14. The telescopic hand tool (10) according to claim 12 or 13, It is characterized by: The foam element (54) corresponds to the second deflection pulley (34), so that the pulling member (30) is guided between the foam element (54) and the second deflection pulley (34).
15. The telescopic hand tool (10) according to any one of the preceding claims, It is characterized by: The telescopic hand tool (10) comprises one or more further intermediate tubes, wherein the further intermediate tubes comprise at least two deflection pulleys respectively arranged at the front and rear ends of the further intermediate tubes, and wherein the further intermediate tubes are arranged between the outer tube (12) and the intermediate tube (14) and / or between the intermediate tube (14) and the inner tube (16).