DE202020104819U1 - Secateurs suitable for thicker branches with effectively enlargeable opening width of the cutting body - Google Patents

Abstract

For thicker branches suitable garden shears with effectively enlargeable opening width of the cutting body, comprising
- A handle (10), at one end of which a gap (11) is formed, with a first axle part (12) and a second axle part (13) being formed at the same end of the handle (10), which are formed through the gap (11 ) extend through it, the first axle part (12) being located in relation to the outside of the second axle part (13), a connecting part (14) being arranged on the other side of the second axle part (13), with between the second axle part (13) and the connecting part (14) has an escape recess (15) which is recessed;
- A first cutting body (20) which is installed in the space (11), a through-hole (21) being arranged at a point on the first cutting body (20) corresponding to the first axis part (12), one of which is the second axis part (13) a through opening (22) is arranged at the corresponding point on the first cutting body (20), an anvil (23) extending outwardly from the first cutting body (20);
- A lever (30), at one end of which an incision (31) is arranged, a third axle part (32) and a fourth axle part (33) being formed at the same end of the lever (30), which are formed through the incision (31 ) run through, where the third axle part (32) is located on the outside of the fourth axle part (33) when viewed in relation, a fastening part (35) being arranged on the other side of the fourth axle part (33), wherein between the fastening part (35) and the connecting part ( 14) an elastomer (36) is clamped;
- A second cutting body (40) which is articulated on the second axle part (13) of the handle (10), a blade (41) extending from the end of the second cutting body (20) corresponding to the anvil (23), while a first connecting bore (42) is arranged at the other end of the second cutting body (40);
- A blade (50) which is fastened in the recess (31) of the lever (30), an axle hole (51) being arranged on the blade (50) directed towards the third axle part (32), the third axle part ( 32) of the lever (30) and the axle hole (51) of the blade (50) are both articulated on the first axle part (12) of the handle (10), with a second connecting hole (52) on the blade (50) fourth axle part (33) is arranged directed; and
- At least one coupling element (60), one end of which is articulated in the second connecting bore (52) and thus forms a first end part (61), while the other end of the same is articulated in the first connecting bore (42) and thus a second Forms end part (62), wherein the avoidance recess (15) can avoid the second end part (62) of the coupling element (60) when the blade (41) and the anvil (23) slide against each other during cutting, the coupling element (60) providing a greater range of movement for the blade (41) when the blade (41) and the anvil (23) slide apart, so that the opening width of the cutting bodies (20, 40) can be effectively increased.

Description

Technical area

The invention relates to a cutting tool, in particular a pair of secateurs suitable for thick branches with an effectively enlargeable opening width of the cutting body.

State of the art

There are suitable cutting tools for different purposes when cutting in the garden, e.g. Garden, tree, branch, hedge and grass shears. Larger pruning shears or loppers are used to cut thick branches, with the user gripping the two handles of the loppers with both hands. The conventional, commercially available pruning shears are designed in such a way that they each have a long power arm and a large opening width of the cutting body, the long power arm providing a large shear force and the large opening width of the cutting body providing a broader application in terms of branch thickness. A conventional, small-sized secateurs is operated with one hand, such secateurs being light in weight, easy to use and transport, and thus suitable for use over a long period of time. In the above-mentioned conventional secateurs, however, the opening width of the cutting body, which depends directly on the opening width of the two handles, is usually not very large and cannot be easily enlarged. If the opening width of the handles for cutting thick branches is enlarged, it can happen that one-handed operation of the secateurs is not possible. To solve this problem, one-handed pruning shears have been produced in which the opening width of the cutting body can be enlarged by a complicated mechanism, but such pruning shears are expensive, heavier and more prone to defects due to their complicated structure.

Object of the invention

The invention is based on the object of creating a pair of secateurs suitable for thicker branches, in which the opening width of the cutting body can be effectively increased without installing an additional mechanism.

Technical solution

According to the invention, this object is achieved by a pair of secateurs suitable for thicker branches with an opening width of the cutting body that can effectively be enlarged, with the features of claim 1. The dependent claims relate to advantageous configurations.

The secateurs according to the invention, suitable for thick branches, with an effectively enlargeable opening width of the cutting body, comprises a handle, a first cutting body, a lever, a second cutting body, a blade and at least one coupling element. A gap is formed at one end of the handle, with a first axle part and a second axle part being formed at the same end of the handle, which extend through the gap, the first axle part being located on the outside of the second axle part when viewed in relation to a connecting part is arranged on the other side of the second axle part, an escape recess being recessed between the second axle part and the connecting part. The first cutting body is installed in the intermediate space, a through-hole being arranged at a location on the first cutting body corresponding to the first axis part, a through-opening being arranged at a location corresponding to the second axis part on the first cutting body, an anvil extending from the first Cutting body extends outward. An incision is arranged at one end of the lever, a third axle part and a fourth axle part being formed at the same end of the lever, which extend through the incision, the third axle part being on the outside of the fourth axle part when viewed in relation to a fastening part is arranged on the other side of the fourth axle part, an elastomer being clamped between the fastening part and the connecting part. The second cutting body is articulated on the second axle part of the handle, a blade extending from the end of the second cutting body corresponding to the anvil, while a first connecting bore is arranged at the other end of the second cutting body. The blade is fastened in the recess of the lever, an axle hole being arranged on the blade directed towards the third axle part, the third axle part of the lever and the axle hole of the blade both being articulated on the first axle part of the handle, whereby on the blade a second connecting bore is arranged directed towards the fourth axle part. One end of the at least one coupling element is articulated in the second connecting bore and thus forms a first end part, while the other end of the same is articulated in the first connecting bore and thus forms a second end part, the evasion recess being able to evade the second end part of the coupling element, when the blade and anvil slide together while cutting.

Preferably, a slide is built into the handle, which has a hook part in the Space is arranged above. A gap is arranged on the second cutting body. When the hook portion of the slider is pushed into the gap, the anvil and blade are locked in a closed position.

An elongated hole is preferably arranged on the handle. A barb protrudes from the hook part. If the slide with the hook part is inserted into the elongated hole, the slide is restricted and fixed in the elongated hole by means of the barb.

An elastic convex strip is preferably formed on one side of the elongated hole of the handle. A plurality of positioning grooves are arranged on the slide. After switching, the slide is positioned by sliding the elastic convex strip into one of the positioning grooves.

The elastomer is preferably a spiral spring and a fastening member is arranged at each end of the elastomer, the fastening members being coupled to the connecting part and the fastening part.

A shaft preferably extends from the end of the first cutting body opposite the anvil, the shaft being built into the handle. A stem which is built into the lever extends from the end of the blade opposite the axle hole.

In the first cutting body, a support part is preferably formed between the through opening and the shaft and in the case of the blade a support part is formed between the second connecting bore and the stem, the fastening members at the two ends of the elastomer being in contact with the support part and the support part.

In the case of the incision, a movement cavity is preferably designed to be widened at the location of the fourth axle part, the coupling element being arranged freely pivotable in the movement cavity.

The invention is characterized in that the handle fixes the first cutter body and is articulated on the second cutter body by means of the second axle part, that the lever fixes the blade and is articulated on the first axle part by means of the third axle part and that the first end part of the coupling element is connected to the second connection bore of the blade and the second end part of the same is connected to the first connection bore of the second cutting body. Thus, a four coupling rod coupling is formed from the first axle part, the second axle part, the first end part and the second end part. The fact that the second end part can be inserted into the evasive recess of the handle increases the swivel range of the coupling element, the enlarged swivel range increasing the maximum opening angle between the blade and the anvil, so that the secateurs according to the invention can be used more widely in terms of branch thickness .

Figure list

• 1 shows a perspective view of a preferred embodiment of a secateurs according to the invention, suitable for thicker branches, with an effectively enlargeable opening width of the cutting body.
• 2 shows an exploded view of the secateurs according to the invention 1 .
• 3 shows a sectional view of the secateurs according to the invention from 1 with closed cutting bodies.
• 4th shows a front view of the secateurs according to the invention 1 with closed cutting bodies.
• 5 shows a sectional view of the secateurs according to the invention from 1 with open cutting bodies.
• 6th shows a front view of the secateurs according to the invention 1 with open cutting bodies.
• 7th shows a sectional view of the secateurs according to the invention from 1 in action.

Detailed description of a preferred embodiment

In the following, objects, features and advantages of the present invention will be explained in more detail on the basis of the detailed description of an exemplary embodiment and the accompanying drawings. However, the invention is not restricted to the description of this exemplary embodiment and its illustration in the accompanying drawings.

As in 1 to 3 As shown, the secateurs according to the invention, suitable for thicker branches, with an effectively enlargeable opening width of the cutting body, comprise a handle 10 , a first cutting body 20th , a lever 30th , a second cutter body 40 , a leaf 50 and at least one coupling element 60 .

At one end of the handle 10 is a space 11 formed, being at the same end of the handle 10 a first axle part 12 and a second axle part 13 are formed by the gap 11 run through it, whereby the first axle part 12 viewed in relation to the outside of the second axle part 13 located on the other side of the second axle part 13 a connecting part 14th is arranged, between the second axle part 13 and the connecting part 14th an alternative recess 15th is arranged recessed. The first cutter 20th is in the gap 11 installed, with one of the first axle part 12 corresponding point on the first cutting body 20th a through hole 21st is arranged, with one of the second axle part 13 corresponding point on the first cutting body 20th a through opening 22nd is arranged with an anvil 23 from the first cutter body 20th extends outward. At one end of the lever 30th is a cut 31 arranged, being at the same end of the lever 30th a third axle part 32 and a fourth axle part 33 are formed by the incision 31 run through it, with the third axle part 32 viewed in relation to the outside of the fourth axle part 33 located on the other side of the fourth axle part 33 a fastener 35 is arranged, with between the fastening part 35 and the connecting part 14th an elastomer 36 is pinched, which is a spiral spring. The second cutting body 20th is on the second axle part 13 of the handle 10 articulated, from which the anvil 23 corresponding end of the second cutting body 40 a blade 41 extends while at the other end of the second cutting body 40 a first connecting hole 42 is arranged. The leaf 50 is in the cut 31 of the lever 30th attached, being to the sheet 50 an axle hole 51 on the third axle part 32 is arranged directed, the third axle part 32 of the lever 30th and the axle hole 51 of the sheet 50 both on the first axle part 12 of the handle 10 are articulated, being attached to the sheet 50 a second connecting hole 52 on the fourth axle part 33 is arranged directed. One end of the at least one coupling element 60 is in the second connecting hole 52 articulated and thus forms a first end part 61 while the other end of the same in the first connecting hole 42 is articulated and thus a second end part 62 forms, with the evasive recess 15th the second end part 62 of the coupling element 60 can dodge when the blade 41 and the anvil 23 slide against each other during cutting, the coupling element 60 for a greater moving distance of the blade 41 ensures that the opening width of the cutting body 20th , 40 can be effectively enlarged.

At both ends of the elastomer 26th is each a fastening member 37 arranged, the fastening members 37 to the connecting part 14th and the fastener 35 are coupled. In addition, a shaft stretches 24 from that of the anvil 23 opposite end of the first cutting body 20th , the shaft 24 in the handle 10 is built in. From the axle hole 51 opposite end of the sheet 50 extends a stalk 53 that in the lever 30th is built in. Thus, the entire structure of the handle 10 and the lever 30th reinforced. With the first cutter 20th is a support part 25th between the through opening 22nd and the shaft 24 and by the sheet 50 a support part 54 between the second connecting hole 52 and the stem 53 formed, wherein the fastening members 37 at the two ends of the elastomer 36 each with the support part 25th and the support part 54 stay in contact. Furthermore, the first cutting body 20th and the sheet 50 made of metallic materials and thus by the support part 25th and the support part 54 more pressure resistant.

Furthermore is in the handle 10 a slider 16 built in, the one hook part 161 having that in the gap 11 is arranged above. On the second cutting body 40 is a loophole 43 arranged. When sliding the hook part 161 of the slide 16 into the gap 43 become the anvil 23 and the blade 41 locked in a closed position. There is also an elongated hole 17th on the handle 10 arranged. On the hook part 161 is a barb 162 arranged above. Will the slider 16 with the hook part 161 in the elongated hole 17th inserted, so is the slide 16 by means of the barb 162 in the elongated hole 17th limited and fixed. Furthermore is on one side of the elongated hole 17th of the handle 10 an elastic convex strip 18th formed and on the slide 16 is a variety of positioning grooves 163 arranged, the slide 16 after switching by sliding the elastic convex strip 18th in one of the positioning grooves 163 is positioned.

To assemble the secateurs according to the invention is on 2 and 3 referenced. The first cutter 20th is by means of the shaft 24 in the handle 10 built-in. From the point where the first cutter body 20th through the space 11 is inserted through, the anvil extends 23 outward. The through hole 21st is used to align with the first axle part 12 and the through hole 22nd for aligning with the second axle part 13 brought. The first end part 61 of the coupling element 60 is in the second connecting hole 52 of the sheet 50 articulated and the second end part 62 the same is in the first connecting hole 42 of the second cutting body 40 articulated. The stem 53 of the sheet 50 is in the lever 30th built-in. The axle part 51 is used to align on the third axle part 32 and the second connecting hole 52 for straightening the fourth axle part 33 brought. Next is the second cutting body 40 on the second axle part 13 of the handle 10 articulated. At the same time the axle hole 51 and the third axle part 32 in the through hole 21st and on the first axle part 12 articulated stored. Finally the fasteners 37 at both ends of the elastomer 36 each on the connecting part 14th and the fastening part 35 attached to the elastomer between the handle 10 and the lever 30th to be clamped stably. Thus the secateurs are built.

For the interaction of the components of the secateurs according to the invention during operation is on 2 to 7th referenced. Are the blade 41 and the anvil 23 in the closed position, so are the handle 10 and the lever 30th to each other, wherein the second cutting body 40 and the coupling element 60 by pivoting the second end part 62 approach each other and then rest against each other. Through the handle 10 and the lever 30th becomes the elastomer 36 pressed together. This is the second end part 62 into the evasive recess 15th of the handle 10 used, whereby the swivel range of the coupling element 60 is enlarged. Be the blade 41 and the anvil 23 moved apart so will the handle 10 and the lever 30th due to the elasticity of the elastomer 36 so spread open that the handle 10 and the lever 30th with the first axle part 12 and the third axle part 32 be pivoted as a common axis. The second cutting body is thereby 40 with the second axle part 13 as an axis through the coupling element 60 pulled and thereby from the anus 23 so separated that the blade 41 and the anvil 23 be spread in the largest opening angle. By squeezing the handle 10 and the lever 30th become the blade 41 and the anvil 23 to move in opposite directions and thus to cut an object.

The invention is characterized in that the handle 10 the first cutter 20th fixed and by means of the second axle part 13 on the second cutting body 40 is articulated that the lever 30th the leaf 50 fixed and by means of the third axle part 32 on the first axle part 12 is articulated and that the first end part 61 of the coupling element 60 to the second connection hole 52 of the sheet 50 and the second end part 62 same to the first connecting hole 42 of the second cutting body 40 connected. Thus, a four coupling rod coupling is formed from the first axle part 12 , the second part of the axle 13 , the first end part 61 and the second end part 62 . By having the second end part 62 into the evasive recess 15th of the handle 10 can be used, the swivel range of the coupling element 60 enlarged, the enlarged pivot range for an increase in the maximum opening angle between the blade 41 and the anvil 23 ensures that the secateurs according to the invention can be used more widely in terms of branch thickness.

Although the present invention has been described in detail on the basis of an exemplary embodiment, it is obvious to a person skilled in the art that the invention is not limited to this exemplary embodiment, but that rather modifications are possible in such a way that individual features can be omitted or other types of combinations of features can be implemented as long as the scope of protection of the appended claims is not left. The disclosure of the present invention includes all combinations of the individual features presented.

List of reference symbols

10

Handle

11

Space

12

first axle part

13

second axle part

14th

Connecting part

15th

Evasive recess

16

Slider

161

Hook part

162

Barbs

163

Positioning groove

17th

Long hole

18th

elastic convex strip

20th

first cutting body

21st

Through hole

22nd

Through opening

23

anvil

24

shaft

25th

Support part

30th

lever

31

incision

32

third axle part

33

fourth axle part

34

Motor cavity

35

Fastening part

36

Elastomer

37

Fastener

40

second cutting body

41

blade

42

first connecting hole

43

gap

50

leaf

51

Axle hole

52

second connecting hole

53

stalk

54

Support part

60

Coupling element

61

first end part

62

second end part

Claims (8)

For thicker branches suitable garden shears with effectively enlargeable opening width of the cutting body, comprising - A handle (10), at one end of which a gap (11) is formed, with a first axle part (12) and a second axle part (13) being formed at the same end of the handle (10), which are formed through the gap (11 ) pass through, the first axle part (12) being located in relation to the outside of the second axle part (13), a connecting part (14) being arranged on the other side of the second axle part (13), with between the second axle part (13) and the connecting part (14) has an escape recess (15) which is recessed; - A first cutting body (20) which is installed in the space (11), a through-hole (21) being arranged at a point on the first cutting body (20) corresponding to the first axis part (12), one of which is the second axis part (13) a through opening (22) is arranged at the corresponding point on the first cutting body (20), an anvil (23) extending outward from the first cutting body (20); - A lever (30), at one end of which an incision (31) is arranged, a third axle part (32) and a fourth axle part (33) being formed at the same end of the lever (30), which are formed through the incision (31 ) run through it, the third axle part (32) being located on the outside of the fourth axle part (33) when viewed in relation, a fastening part (35) being arranged on the other side of the fourth axle part (33), wherein between the fastening part (35 ) and the connecting part (14) is clamped in an elastomer (36); - A second cutting body (40) which is articulated on the second axle part (13) of the handle (10), a blade (41) extending from the end of the second cutting body (20) corresponding to the anvil (23), while a first connecting bore (42) is arranged at the other end of the second cutting body (40); - A blade (50) which is fastened in the recess (31) of the lever (30), an axle hole (51) being arranged on the blade (50) directed towards the third axle part (32), the third axle part ( 32) of the lever (30) and the axle hole (51) of the blade (50) are both articulated on the first axle part (12) of the handle (10), with a second connecting hole (52) on the blade (50) fourth axle part (33) is arranged directed; and - At least one coupling element (60), one end of which is articulated in the second connecting bore (52) and thus forms a first end part (61), while the other end of the same is articulated in the first connecting bore (42) and thus a second Forms end part (62), wherein the evasion recess (15) can evade the second end part (62) of the coupling element (60) when the blade (41) and the anvil (23) slide against each other during cutting, the coupling element (60) at The blade (41) and the anvil (23) sliding apart allows the blade (41) to move further, so that the opening width of the cutting bodies (20, 40) can be effectively increased. Secateurs after Claim 1 , characterized in that a slide (16) is built into the handle (10), which has a hook part (161) which is arranged protruding in the intermediate space (11), with a gap (43) on the second cutting body (40) ), wherein the anvil (23) and the blade are locked in a closed position when the hook part (161) of the slide (16) is pushed into the gap (43) (41). Secateurs after Claim 2 , characterized in that an elongated hole (17) is arranged on the handle (10) and a barb (162) is arranged protruding on the hook part (161), wherein the slide (16), when connected to the hook part (161) in the elongated hole (17) is inserted, restricted and fixed in the elongated hole (17) by means of the barb (162). Secateurs after Claim 3 , characterized in that an elastic convex strip (18) is formed on one side of the elongated hole (17) of the handle (10) and a plurality of positioning grooves (163) are arranged on the slide (16), the slide (16) according to Switching is positioned by sliding the elastic convex strip (18) into one of the positioning grooves (163). Secateurs after Claim 1 , characterized in that the elastomer (36) is a spiral spring and a fastening member (37) is arranged at both ends of the elastomer (36), the fastening members (37) being attached to the connecting part (14) and the fastening part (35) are coupled. Secateurs after Claim 5 , characterized by that a shaft (24) extends from the end of the first cutting body (20) opposite the anvil (23), the shaft (24) being built into the handle (10); and that a stem (53) extends from the end of the blade (50) opposite the axle hole (51), the stem (53) being built into the lever (30). Secateurs after Claim 6 , characterized in that with the first cutting body (20) a support part (25) between the through opening (22) and the shaft (24) and with the blade (50) a support part (54) between the second connecting bore (52) and the Stalk (53) is formed, wherein the fastening members (37) at the two ends of the elastomer (36) are in contact with the support part (25) and the support part (54). Secateurs after Claim 1 , characterized in that at the incision (31) a movement cavity (34) is formed widened at the location of the fourth axle part (33), the coupling element (60) being arranged freely pivotable in the movement cavity (34).

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