DE202019101821U1 - Telescope tube arrangement for garden tools - Google Patents

Abstract

A garden tool telescopic tube assembly comprising an outer tube (10), at least one central tube (20) and an inner tube (30), the outer tube (10), the at least one central tube (20) and the inner tube (30) from outside to inside The outer tube (10), the central tube (20) and the inner tube (30) each having a first end (11, 21, 31) and a second end (12, 22, 32), wherein the first end (11) of the outer tube (10) and at the first end (21) of the central tube (20) each having a locking device (40) is mounted, wherein the central tube (20) and the inner tube (30) after a telescopic adjustment by means of the locking devices ( 40) are non-positively positionable,
characterized,
in that a respective limiting groove (13, 23, 33) is arranged at two opposite points on the outer circumference of the outer, middle and inner tubes (10, 20, 30), extending from the first end (11, 21, 31) to the second end (11). 12, 22, 32), wherein in the boundary groove (13, 23, 33) at least one raised edge (14, 24, 34) is arranged, wherein the outer and central tube (10, 20) are both formed so that a passage hole (15, 25) is disposed in the restriction groove (13, 23) at a position near the first end (11, 21);
that the respective locking device (40) has a fixed Seat (41) fixedly on the respective first end (11, 21) of the outer and central tube (10, 20) can be plugged, wherein the fixed seat (41) hollow, tubular and provided with a limiting rib (412) is disposed opposite to the through hole (15, 25), passes through the two through holes (411) on the outer periphery of the fixed seat (41) and protrudes from the inner wall of the fixed seat (41), the limiting rib (412) at least a recess (413), wherein a pivot pin (43) is guided through the opening edges of the respective passage opening (411), so that in each case a Kipphebelelement (42) by means of the pivot pin (43) in the two through holes (411) is rotatably mounted, wherein the rocker arm member (42) has a rotary head (421) rotatably supported in the through hole (411) by means of the pivot pin (43) at one end of which is disposed a handle (422) extending from the passage opening (411) protrudes, wherein the inner side of the rotary head (421) protrudes at least one support body (423);
for the assembly of the telescopic tube arrangement, the outer tube (10), the central tube (20) and the inner tube (30) are slidable into each other and the locking devices (40) at each end (11, 21) of the outer tube (10) and the central tube (20 ) are mounted so that the boundary ribs (412) of the locking devices (40) in each case in the corresponding boundary grooves (13, 23) on the outer and central tube (10, 20) engage, wherein the recesses (413) serve that the raised edges (14, 24) of the limiting grooves (13, 23) protrude into the depressions (413) after dodging, so that the passage openings (411) on the through holes (15, 25 Stay aligned by the profile matching the boundary grooves (13, 23, 33), the tubes (10, 20, 30) in the telescoped state are locked so that they are rotationally fixed to each other, wherein the rocker arm element (42) by means of the handles (422) is operable and thus brings the rotary head (421) for displacement between a locked position and a released position, wherein upon detection of the support body (423) of the locking device (40) on the outer tube (10) against the raised edge (24) of Central tube (20) and the support body (423) of the locking device (40) on the central tube (20) against the raised edge (34) of the inner tube (30) presses, so that the telescopic tube of the garden tool in the set In the released position, the support bodies (423) are separated from the raised edges (24, 34) so that the central tube (20) or / and the inner tube (30) are adjustable to To adjust the telescopic tube assembly for garden tools in the desired length, so that the garden tool is more easily entrained, tangible and storable and takes up less space.

Description

Technical area

The invention relates to a telescopic tube arrangement for garden tools, in particular a telescopic tube arrangement for garden tools, which is adjustable in length and lockable on two sides.

State of the art

For gardening there are garden tools of various kinds. Branch and garden shears are used for cutting branches and flowers. A conventional pruning shears has two counter-rotating blades, wherein at the rear end of the respective blade an elongated handle is mounted and in the central portion thereof, a through hole is arranged, with a screw inserted through the two through holes of the blades and then with a nut is screwed together to rotate the two blades and position. By applying a force to the handles, the blades with the through holes are brought as an opening and closing axis to cut branches, flowers, etc.

However, the handles of the conventional pruning shears are designed so that their length is fixed and not adjustable, so that use of these conventional pruning shears or pruning at higher branches and leaves is not possible. Since the overall length of the respective blade and the respective handle in the assembled state is not small, the branch pruner with non-length-adjustable handles takes up a large space for transport and stowage.

Object of the invention

The invention has for its object to provide a telescopic tube assembly for garden tools, which is adjustable in length and lockable on two sides.

Technical solution

This object is achieved by a telescopic tube arrangement for a garden tool with the features of claim 1. Advantageous embodiments are the subject of the dependent claims.

The telescopic tube arrangement for garden tools according to the invention comprises an outer tube, at least one central tube and an inner tube, wherein the outer tube, the at least one central tube and the inner tube are pushed into one another from the outside to the inside, wherein the outer tube, the central tube and the inner tube each have a first Have end and a second end, wherein at the first end of the outer tube and the first end of the center tube each having a locking device is mounted, wherein the central tube and the inner tube are frictionally positioned by a telescopic adjustment means of the locking devices, wherein at two opposite points on the outer periphery of the outside -, middle and inner tube is arranged in each case a limiting groove extending from the first end to the second end, wherein in the boundary groove at least one raised edge is arranged, wherein the outer and central tube are both formed so that at one near the first A respective through-hole is disposed in the limiting groove, the respective locking device having a fixed seat which can be firmly seated on the respective first end of the outer and central tube, wherein the fixed seat is hollow and tubular and provided with a limiting rib disposed opposite to the through-hole, passing through the two through-holes on the outer periphery of the fixed seat and protruding from the inner wall of the fixed seat, the restriction rib having at least one recess, a pivot pin being passed through the opening edges of the respective through-hole, thus in each case a rocker arm element is rotatably mounted in the two through openings by means of the pivot pin, wherein the rocker arm element has a rotatably mounted by means of the pivot pin in the through hole rotary head, arranged at one end of a handle i st, which protrudes from the through hole, wherein protruding from the inside of the rotary head at least one support body.

list of figures

• 1 shows a perspective view of a preferred embodiment of a telescopic tube assembly according to the invention for garden tools in the assembled state.
• 2 shows an exploded view of the embodiment of a telescopic tube assembly according to the invention for garden tools.
• 3 shows an enlarged view of a fixed seat according to the invention in section.
• 4 shows a schematic representation of the dissolved state of a locking device according to the invention after releasing the handles.
• 5 shows a schematic representation of the tubes in the extended state according to the invention.
• 6 shows a schematic representation of the embodiment of a telescopic tube assembly according to the invention with the extended tubes in the locked state and a section thereof.
• 7 shows a schematic representation of the application of the embodiment of a telescopic tube assembly according to the invention in a pruning shears.
• 8th shows a schematic representation of the application of the embodiment of a telescopic tube assembly according to the invention in a garden tool with two blades.

Detailed Description of the Preferred Embodiment

In the following, objects, features and advantages of the present invention will become more apparent from the detailed description of a preferred embodiment and the accompanying drawings. The invention is not to be limited to the description and the accompanying drawings.

How out 1 to 3 can be seen, the inventive telescopic tube assembly for garden tools comprises an outer tube 10 , at least one central tube 20 and an inner tube 30 , where the outer tube 10 that has at least one central tube 20 and the inner tube 30 are pushed into each other in order from the outside in, the outer tube 10 , the center tube 20 and the inner tube 30 each a first end 11 ( 21 . 31 ) and a second end 12 ( 22 . 32 ), wherein at the first end 11 of the outer tube 10 and at the first end 21 of the center tube 20 each a locking device 40 is attached, wherein the central tube 20 and the inner tube 30 after a telescopic adjustment by means of the locking devices 40 be frictionally positioned, wherein at two opposite locations on the outer circumference of the outer, middle and inner tube 10 . 20 . 30 one boundary groove each 13 ( 23 . 33 ) is arranged from the first end 11 ( 21 . 31 ) to the second end 12 ( 22 . 32 ), wherein in the boundary groove 13 ( 23 . 33 ) at least one raised edge 14 ( 24 . 34 ), wherein the outer and central tube 10 . 20 both are designed so that at one near the first end 11 ( 21 ) lying in the boundary groove 13 ( 23 ) a through hole 15 ( 25 ), wherein the respective locking device 40 a fixed seat 41 having, fixed to the respective first end 11 ( 21 ) of the outer and middle tube 10 . 20 can be stuck, with the fixed seat 41 hollow, tubular and with a boundary rib 412 is provided opposite to the through hole 15 ( 25 ) is arranged, through the two passage openings 411 on the outer circumference of the fixed seat 41 passes through and from the inner wall of the fixed seat 41 protrudes, with the boundary rib 412 at least one depression 413 having a pivot pin 43 through the opening edges of the respective passage opening 411 is passed through, so that in each case a rocker arm element 42 by means of the pivot pin 43 in the two passage openings 411 is rotatably mounted, wherein the rocker arm element 42 one by means of the pivot pin 43 in the passage opening 411 rotatably mounted turret 421 has, at one end of a handle 422 is arranged, which from the passage opening 411 sticking out, being from the inside of the turret 421 at least one support body 423 protrudes.

For the assembly of the telescopic tube assembly according to the invention for garden tools is on 1 directed. The outer tube 10 , the center tube 20 and the inner tube 30 are pushed together and the locking devices 40 will be at the respective end 11 ( 21 ) of the outer tube 10 and the center tube 20 mounted so that the boundary ribs 412 the locking devices 40 each in the corresponding boundary grooves 13 . 23 on the outer and middle tube 10 . 20 intervene, with the wells 413 serve that the raised edges 14 . 24 the boundary grooves 13 . 23 after dodging in the wells 413 protrude so that the through holes 411 on the through holes 15 . 25 stay aligned. Because of the limiting grooves 13 . 23 . 33 the pipes 10 . 20 . 30 profile match each other, the tubes can 10 . 20 . 30 be locked in the telescoped state so that they are non-rotatable to each other. The rocker arm element 42 is done by means of handles 422 pressed and brings so the turret 421 for shifting between a detected position and a released position (see 4 ). When locking the support body pushes 423 the locking device 40 on the outer tube 10 against the raised edge 24 of the center tube 20 and the support body 423 the locking device 40 at the central tube 20 against the raised edge 34 of the inner tube 30 so that the telescopic tube of the garden tool can be fixed in the set length and is no longer adjustable in length. In the released position are the support body 423 from the raised edges 24 . 34 separated so that the center tube 20 or / and the inner tube 30 be set (see 5 and 6 ). In this way, the telescopic tube assembly according to the invention for garden tools can be adjusted in the desired length, so that the garden tool can be easily taken, taken and stored and takes up less space.

According to the invention, the telescopic tube arrangement for garden tools has two central tubes 20 on, which are pushed into each other, whereby to the two central tubes 20 each a locking device 40 is mounted.

According to the invention, the raised edges 14 . 24 . 34 the outer, middle and inner tube 10 . 20 . 30 in the longitudinal direction of the outer, middle and inner tube 10 . 20 . 30 arranged.

According to the invention is at one of the handle 422 different end of the turret 421 at least one support rib 424 arranged, against the opening edges of the through hole 411 pushes when the turret 421 the rocker arm element 42 is in the determined position. So can the rocker arm element 42 be reliably positioned in the determined state so that it does not pop up automatically.

According to the invention, two are close to the second end 22 ( 32 ) lying sides of the middle and inner tube 20 . 30 each a sliding guide piece 50 mounted and stands a wall 414 from the inner tube part of the fixed seat 41 showing, the Gleitführungsstück 50 and the wall 414 hinder each other to avoid having the center tube 20 and the inner tube 30 due to an excessive pulling force completely out of the outer tube 10 be pushed out. With the sliding guide pieces 50 In addition, the gaps between the pipes are filled.

According to the invention over the outer tube 10 a non-slip handle cover 60 pulled, which ensures a better sense of touch.

According to the invention, a garden tool by means of a connector 70 to the center tube 20 outstanding end of the inner tube 30 be connected, the garden tool a pruning shears 80 (please refer 7 ), which is controlled with a single telescopic tube, or blades 90 (please refer 8th ), which can be controlled with two telescopic tubes may include.

The telescopic tube arrangement according to the invention for garden tools has the following advantages. Through the interaction of the outer tube 10 , the center tube 20 and the inner tube 30 with the locking devices 40 length adjustment is possible as needed, so that it is not difficult that the cutting work is made difficult due to a short garden tool. The telescopic tube is adjustable as required in the desired length, so that the garden tools can be taken more easily, taken and stored and takes up less space. When detecting the locking device 40 Press the two rocker arms 42 at the same time the two sides of the central tube 20 or the inner tube 30 firmly, leaving a one-sided load, which leads to a crooked position of the center tube 20 or the inner tube 30 leads, is avoided and a greater positioning force is achieved. The raised edges 14 . 24 . 34 of the outer tube 10 , the center tube 20 and the inner tube 30 provide for increased structural strength of the identified locations of the center tube 20 and the inner tube 30 To avoid the center tube 20 and the inner tube 30 by pressing the rocker arm elements 42 recessed inward and thereby deformed.

Although the present invention has been described in detail with reference to a preferred embodiment, it will be understood by those skilled in the art that the invention is not limited to this embodiment, but rather modifications are possible in such a way that individual features are omitted or other types of combinations of features realized as long as the scope of protection of the appended claims is not abandoned. The disclosure of the present invention includes all combinations of the featured individual features.

LIST OF REFERENCE NUMBERS

10

outer tube

11

first end

12

second end

13

limiting groove

14

raised edge

15

Through Hole

20

center tube

21

first end

22

second end

23

limiting groove

24

raised edge

25

Through Hole

30

inner tube

31

first end

32

second end

33

limiting groove

34

raised edge

40

Locking device

41

fixed seat

411

Through opening

412

limiting rib

413

deepening

414

wall

42

Kipphebelelelement

421

turret

422

Handle

423

support body

424

support rib

43

tommy

50

sliding guide

60

grip covering

70

joint

80

Lopper

90

blade

Claims (7)

A garden tool telescopic tube assembly comprising an outer tube (10), at least one central tube (20) and an inner tube (30), the outer tube (10), the at least one central tube (20) and the inner tube (30) from outside to inside The outer tube (10), the central tube (20) and the inner tube (30) each having a first end (11, 21, 31) and a second end (12, 22, 32), wherein the first end (11) of the outer tube (10) and at the first end (21) of the central tube (20) each having a locking device (40) is mounted, wherein the central tube (20) and the inner tube (30) after a telescopic adjustment by means of the locking devices ( 40) are non-positively positionable, characterized in that at two opposite locations on the outer circumference of the outer, middle and inner tube (10, 20, 30) each have a limiting groove (13, 23, 33) is arranged from the first end (11 , 21, 31) to the second end (12, 22, 32), wherein in the limiting groove (13, 23, 33) at least one raised edge (14, 24, 34) is arranged, wherein the outer and central tube (10, 20) are both formed so that at a near the first end (11 , 21) in the limiting groove (13, 23) a through hole (15, 25) is arranged; in that the respective locking device (40) has a fixed seat (41) fixedly attachable to the respective first end (11, 21) of the outer and central tubes (10, 20), the fixed seat (41) being hollow, tubular formed and provided with a limiting rib (412), which is arranged opposite to the through hole (15, 25) passes through the two through holes (411) on the outer periphery of the fixed seat (41) and from the inner wall of the fixed seat (41) protruding, wherein the limiting rib (412) has at least one recess (413), wherein a pivot pin (43) through the opening edges of the respective through hole (411) is guided through, so that in each case a rocker arm element (42) by means of the pivot pin (43) in the two through holes (411) is rotatably mounted, wherein the rocker arm member (42) by means of the pivot pin (43) in the through hole (411) rotatably mounted rotary head (421), on whose e at the end a handle (422) is arranged, which protrudes from the through hole (411), wherein from the inside of the rotary head (421) at least one support body (423) protrudes; for the assembly of the telescopic tube arrangement, the outer tube (10), the central tube (20) and the inner tube (30) are slidable into each other and the locking devices (40) at each end (11, 21) of the outer tube (10) and the central tube (20 ) are mountable so that the limiting ribs (412) of the locking devices (40) in each case in the corresponding boundary grooves (13, 23) on the outer and central tube (10, 20) engage, wherein the recesses (413) serve that the elevated Edges (14, 24) of the boundary grooves (13, 23) protrude into the depressions (413) after dodging, so that the passage openings (411) remain aligned with the through-holes (15, 25), wherein the profile-wise matching of the boundary grooves (13, 23, 33), the tubes (10, 20, 30) in the telescoped state are locked so that they are rotationally fixed to each other, wherein the rocker arm element (42) by means of the handles (422) is actuated, and the turret (421) for verse pushing between a fixed position and a released position, wherein upon detection of the support body (423) of the locking device (40) on the outer tube (10) against the raised edge (24) of the central tube (20) and the support body (423) of the locking device ( 40) on the central tube (20) against the raised edge (34) of the inner tube (30) presses, so that the telescopic tube of the garden tool in the set length is fixed and no longer adjustable in length, wherein in the released position, the support body (423) of the elevated Edges (24, 34) are separated, so that the central tube (20) and / or the inner tube (30) are adjustable to adjust the telescopic tube assembly for garden tools in the desired length, so that the garden tool is more easily entrained, tangible and storable and a taken up less space. Telescope tube arrangement according to Claim 1 , characterized in that the telescopic tube arrangement for garden tools has two central tubes (20) which are pushed into one another, wherein in each case a locking device (40) is mounted on the two central tubes (20). Telescope tube arrangement according to Claim 1 , characterized in that the raised edges (14, 24, 34) of the outer, middle and inner tubes (10, 20, 30) in the longitudinal direction of the outer, middle and inner tube (10, 20, 30) are arranged. Telescope tube arrangement according to Claim 1 , characterized in that from one of the handle (422) different end of the turret (421) at least one support rib (424) protrudes. Telescope tube arrangement according to Claim 1 characterized in that a respective sliding guide piece (50) is mounted on two sides of the middle and inner tubes (20, 30) close to the second end (22, 32) and a wall (414) of the inner tube part of the fixed seat (41) protrudes. Telescope tube arrangement according to Claim 1 , characterized in that over the outer tube (10) a non-slip handle cover (60) is pulled, which ensures a better sense of touch. Telescope tube arrangement according to Claim 1 , characterized in that a garden tool by means of a connecting piece (70) to the projecting from the central tube (20) end of the inner tube (30) can be connected.

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