CN212184268U

CN212184268U - Garden shears

Info

Publication number: CN212184268U
Application number: CN202020797107.4U
Authority: CN
Inventors: 曲伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2020-12-22
Anticipated expiration: 2030-05-13

Abstract

The utility model discloses a garden shears, this garden shears include first handle (5), second handle (7) and hinge (3), wherein first handle (5) with dispose between second handle (7) by gear and rack constitute, be arranged in shearing the operation save assist mechanism (4) that the hand was hard. Therefore, hand muscle ache and skeleton damage caused by long-time and high-frequency shearing force during garden operation are avoided or alleviated.

Description

Garden shears

Technical Field

The utility model relates to a garden instrument field, concretely relates to gardens are cut.

Background

Garden shears are a common tool for shearing work, and are operated by a single hand, and the shearing work is completed by applying a gripping force by hands. When the garden is used for doing work, the work time is long, the strength is high, and the hand muscle ache and the skeleton damage are easily caused by long-time high-frequency shearing force.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a gardens are cut to solve the above-mentioned defect that the correlation technique exists at least to a certain extent.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the garden shears comprises a first handle (5), a second handle (7) and a hinge shaft (3), and is characterized in that an auxiliary mechanism (4) which is composed of a gear and a rack and used for saving hand force in shearing operation is arranged between the first handle (5) and the second handle (7).

In some aspects, the assistance mechanism (4) comprises:

a first arc-shaped rack (41) fixed to the first handle (5) and extending from the first handle (5) to the second handle (7);

a second arc-shaped rack (43) fixed to the second handle (7) and extending from the second handle (7) to the first handle (5); and

a first gear (42) located between the first rack (41) and the second rack (43) and engaged with the first rack (41) and the second rack (43), respectively;

the first rack (41) and the second rack (43) are located on a circumference centered on the center of the hinge shaft (3).

Preferably, the assist mechanism (4) further includes a disengagement preventing mechanism for preventing the first gear (42) from disengaging from the first rack (41) and the second rack (43).

Preferably, the anti-slip mechanism is a connecting rod (44), one end of the connecting rod (44) is assembled on the hinge shaft (3), and the first gear (42) is axially supported on the other end of the connecting rod (44).

In other aspects, the auxiliary mechanism (4) comprises:

a second gear (45) axially supported between the first handle (5) and the second handle (7); and

and a third arc-shaped rack (46) fixed to one of the first handle (5) and the second handle (7) and extending toward the other handle, wherein the third rack (46) is positioned on a circumference centering on the center of the hinge shaft (3) and meshed with the second gear (45).

Preferably, the second gear (45) is axially supported between the first handle (5) and the second handle (7) by a support rod (71) fixed to the other handle.

Preferably, the auxiliary mechanism (4) is located at one end of the handle close to the hinge shaft (3).

Preferably, the first handle (5) or the second handle (7) is provided with a contact body (72) to increase the contact area of the handle with the palm during the cutting operation.

Preferably, the contact body (72) is a flexible sleeve body sleeved on the handle.

Preferably, a recess (51) for engagement with a finger is provided on an outer side of the handle where the contact body (72) is not provided, to prevent the finger from sliding during the cutting operation.

Compared with the prior art, the utility model discloses following beneficial effect has at least:

through dispose above-mentioned complementary unit between two handles, can save the hand and exert oneself in the shearing operation to can avoid or alleviate when the gardens are done the operation, hand muscle ache and skeleton that the shearing of long-time, high frequency is exerted oneself and is caused are impaired.

Drawings

Fig. 1 is a schematic structural view of a first embodiment of a pair of garden shears;

FIG. 2 is a schematic structural view of a second embodiment of the garden shears;

reference numerals: 1. a first cutter body; 2. a second blade body; 3. a hinge shaft; 4. an auxiliary mechanism; 41. a first rack; 42. a first gear; 43. a second rack; 44. a connecting rod; 45. a second gear; 46. a third rack; 5. a first handle; 51. a recess; 6. a spring; 7. a second handle; 71. a support bar; 72. a contact body; 8. a limiting rod; 9. a locking ring.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

The first embodiment:

referring to fig. 1, in the first embodiment, the garden shears includes a first cutter body 1, a second cutter body 2, a first handle 5, a second handle 7 and a hinge shaft 3, and an auxiliary mechanism 4 composed of a gear and a rack and used for saving hand force in the shearing operation is further arranged between the first handle 5 and the second handle 7.

A spring 6 is arranged between the first handle 5 and the second handle 7 for automatically restoring the garden shears to a state in which the mouth is open. A limiting rod 8 is arranged between the first handle 5 and the second handle 7 and used for preventing the two cutter bodies from continuously moving relative to each other after the mouth part is closed. A locking ring 9 is arranged at the tail end (the lower end in figure 1) of the first handle 5, and when the garden shears are not used, the locking ring 9 is used for sheathing the second handle 7, so that the garden shears are kept in a state that the mouth parts are closed, and the blades are prevented from being touched by mistake.

Wherein, the assist mechanism 4 includes: a first rack 41 fixed to the first handle 5 and extending from the first handle 5 to the second handle 7 in an arc shape; a second rack 43 fixed to the second handle 7 and extending from the second handle 7 to the first handle 5; and a first gear 42 located between the first rack 41 and the second rack 43 and engaged with the first rack 41 and the second rack 43, respectively; the first and second racks 41 and 43 are located on a circumference centered on the center of the hinge shaft 3.

The assist mechanism 4 further includes a link 44, one end of the link 44 is pivotally supported on the hinge shaft 3 and is rotatable about the hinge shaft 3, the first gear 42 is pivotally supported on the other end of the link 44 and is rotatable about a central axis of the first gear 42, and the link 44 serves as a disengagement preventing mechanism for preventing the first gear 42 from being disengaged by being held between the first rack 41 and the second rack 43.

In this embodiment, the auxiliary mechanism 4 is disposed at one end (upper end in fig. 1) of the handle close to the hinge shaft 3, so that the auxiliary mechanism 4 can be made smaller, and the auxiliary mechanism 4 does not contact with the hand when the garden shears are used, thereby preventing the auxiliary mechanism 4 from accidentally pinching the hand.

A contact body 72 is further provided on the second handle 7 for increasing the contact area of the handle with the palm of the hand during gripping or cutting operation. In this embodiment, the contact body 72 is specifically a flexible sleeve body sleeved on the handle, such as a silica gel sleeve or a soft rubber sleeve, except that the larger diameter of the sleeve body is utilized to increase the contact area between the second handle 7 and the palm, the sleeve body is made of a flexible material, so that the palm and the handle can be prevented from sliding and rubbing to generate bubbles in the palm due to sweating, and the touch feeling is comfortable during use.

Further, a recess 51 for engagement with a finger is provided on an outer side portion of the first handle 5, i.e., an outer side portion of the handle where the contact body 72 is not provided, to prevent the finger from sliding during the cutting operation. In the present embodiment, the number of the concave portions 51 is one, and the width of the concave portions 51 is equivalent to or slightly larger than the total width of the four fingers when they are closed. Furthermore, four recesses can be provided, each having a width corresponding to or slightly larger than the width of one finger. Therefore, the water bubbles generated by the sliding friction of the fingers and the handle on the fingers can be prevented to a certain extent.

Compare not dispose above-mentioned auxiliary mechanism 4 tradition gardens and cut, the hand can effectively be saved to this embodiment gardens scissors and exert oneself, therefore can avoid or alleviate when the gardens do the operation, the hand muscle ache and the skeleton that lead to are exerted oneself hard for a long time, high frequency are impaired.

It should be understood that the anti-falling mechanism for preventing the first gear 42 from falling down may also adopt other structures, such as a blocking portion provided at an edge of the rack or a blocking portion provided at a periphery of the first gear 42.

Second embodiment:

referring to fig. 2, in the second embodiment, the garden shears includes a first cutter body 1, a second cutter body 2, a first handle 5, a second handle 7 and a hinge shaft 3, and an auxiliary mechanism 4 composed of a gear and a rack and used for saving hand force in the shearing operation is further arranged between the first handle 5 and the second handle 7.

A spring 6 is arranged between the first handle 5 and the second handle 7 for automatically restoring the garden shears to a state in which the mouth is open. A limiting rod 8 is arranged between the first handle 5 and the second handle 7 and used for preventing the two cutter bodies from continuously moving relative to each other after the mouth part is closed. The end (lower end in figure 2) of the first handle 5 is also provided with a locking ring 9, when the garden shears are not used, the locking ring 9 is used for sheathing the second handle 7, the garden shears are kept in a state that the mouth part is closed, and the accidental touch of the blades is avoided.

Wherein the assist mechanism 4 includes: a second gear 45 axially supported between the first handle 5 and the second handle 7; and a third circular arc-shaped rack 46 fixed to the first handle 5 and extending toward the second handle 7, wherein the third rack 46 is located on a circumference centered on the center of the hinge shaft 3 and is engaged with the second gear 45. In the present embodiment in particular, the second gear 45 is pivotally supported between the first handle 5 and the second handle 7 by a support bar 71 fixed to the second handle 7.

Similarly, the second handle 7 is provided with a contact member 72 for increasing the contact area between the handle and the palm. A recess 51 for engagement with a finger is also provided at the outer side of the first handle 5 to prevent the finger from sliding during the cutting operation.

Compare and not dispose 4 traditional gardens of above-mentioned complementary unit and cut, the gardens of second embodiment are cut and can be effectively saved the hand and exert oneself, therefore can avoid or alleviate when the gardens are done the operation, and the hand muscle that leads to is sore and the skeleton is impaired hard with the shearing of long-time, high frequency.

The present invention has been described in detail with reference to the specific embodiments, and the detailed description is only for assisting the skilled person in understanding the content of the present invention, and can not be understood as the limitation of the protection scope of the present invention. Various decorations, equivalent changes and the like which are performed on the scheme by the technical personnel in the field under the conception of the invention are all included in the protection scope of the invention.

Claims

1. The garden shears comprises a first handle (5), a second handle (7) and a hinge shaft (3), and is characterized in that an auxiliary mechanism (4) which is composed of a gear and a rack and used for saving hand force in shearing operation is arranged between the first handle (5) and the second handle (7).

2. Garden shears according to claim 1, characterized in that the auxiliary mechanism (4) comprises:

3. A pair of garden shears according to claim 2, wherein the auxiliary mechanism (4) further comprises a disengagement preventing mechanism for preventing the first gear (42) from disengaging from the first rack (41) and the second rack (43).

4. A pair of garden shears according to claim 3, wherein the anti-slip mechanism is a connecting rod (44), one end of the connecting rod (44) is fitted to the hinge shaft (3), and the first gear (42) is axially supported by the other end of the connecting rod (44).

5. Garden shears according to claim 1, characterized in that the auxiliary mechanism (4) comprises:

6. A pair of garden shears according to claim 5, wherein the second gear (45) is pivotally supported between the first handle (5) and the second handle (7) by a support rod (71) fixed to the other handle.

7. A pair of garden shears according to any one of claims 1 to 6, wherein the assist mechanism (4) is located at the end of the handle adjacent the hinge shaft (3).

8. A pair of garden shears according to any one of claims 1 to 6, wherein the first handle (5) or the second handle (7) is provided with a contact body (72) to increase the contact area of the handle with the palm during the shearing operation.

9. The pair of garden shears according to claim 8, wherein the contact body (72) is a flexible sleeve that fits over the handle.

10. Garden shears according to claim 8, characterized in that a recess (51) for engagement with fingers is arranged at the outer side of the handle where the contact body (72) is not arranged, to prevent fingers from sliding during the shearing operation.