CN115720773A - Rotary holding device for electric hedge shears - Google Patents

Abstract

The rotary holding device comprises a shell, a rear handle, a push button, a connecting rod and a positioning block. The casing has an annular flange and a plurality of constant head tanks of locating the annular flange, and the annular flange of casing is located to the back handle, pushes away the pivot and establishes the back handle and local expose outside, and the locating piece is located in the back handle and adjacent to establish the annular flange, and the eccentric pivot of one end of connecting rod is established and is pushed away the button, and the locating piece is established to the other end pivot of connecting rod. Therefore, when the push button is unlocked, the positioning block is driven by the connecting rod to be separated from the positioning groove which is originally clamped, so that the rear handle can rotate randomly to adjust the angle, when the push button is locked, the positioning block is clamped in one positioning groove under the action of the elastic piece, so that the rear handle is positioned, and a user can operate at an angle which is more in line with the ergonomics.

Description

Swivel grip for electric hedge shears

technical field

The present invention relates to electric hedge shears, in particular to a rotary holding device for electric hedge shears.

Background technique

In order to allow the user to operate stably, the traditional electric hedge trimmer has a front handle and a rear handle structurally. The front handle remains fixed to serve as a supporting fulcrum, and the rear handle can be rotated to different angles. Rear positioning, so that the user can adjust the holding angle. However, the traditional rear handle lacks ergonomic design, which makes users feel tired easily after long-term operation, so it is impossible to complete a large number of pruning operations.

Contents of the invention

The main purpose of the present invention is to provide a rotary holding device for electric hedge shears, which is ergonomically designed in operation to reduce fatigue and increase comfort.

In order to achieve the above main purpose, the rotary holding device of the present invention includes a housing, a rear handle and a positioning unit. The rear end of the casing has an annular flange, and the annular flange has a plurality of positioning grooves arranged at intervals; the rear handle is rotatably arranged on the annular flange of the casing; the positioning unit has a push Button, a positioning block, a connecting rod and an elastic member, the push button is pivotally arranged on the rear handle and can pivot relative to the rear handle, the positioning block is arranged in the rear handle and adjacent to the housing An annular flange, the connecting rod is arranged in the rear handle, one end of the connecting rod is eccentrically pivoted on the push button, and the other end of the connecting rod is pivoted on the positioning block, so that the connecting rod can be supported by the push button The driving of the positioning block is linked; the elastic member is arranged in the rear handle and pushes the positioning block toward the annular flange of the housing.

As can be seen from the above, when the angle of the rear handle is to be adjusted, the push button is first pushed to the unlocking position, so that the positioning block is driven by the connecting rod to break away from the originally locked positioning groove. The rear handle can be rotated to adjust the angle until it is adjusted to an appropriate angle, and then the push force applied to the push button is released, so that the positioning block is locked in a corresponding positioning groove under the action of the elastic member. The positioning of the handle is completed immediately. In other words, the rotating holding device of the present invention allows the user to operate at a more ergonomic angle, thereby reducing fatigue and increasing comfort.

Preferably, the positioning grooves are arranged at equal intervals relative to the center of the annular flange, so that the rear handle can be positioned at 0 degrees, 90 degrees or negative 90 degrees.

Preferably, the push button has a pushed portion, and the pushed portion is exposed on the top surface of the rear handle, so as to be convenient for the user to toggle with the thumb.

Preferably, the outer peripheral surface of the annular flange of the housing has two first guiding recesses and a first guiding protrusion adjacent to the first guiding recesses, and the front end of the rear handle has Two second guide protrusions and a second guide recess adjacent to the second guide protrusions, the second guide protrusions of the rear handle are embedded in the annular flange The first guiding concave portion and the second guiding concave portion of the rear handle are embedded in the first guiding convex portion of the annular flange. Therefore, the rear handle can stably rotate relative to the housing.

Preferably, the rear handle has a blocking wall, the push button has an abutting portion, the top end of the elastic member abuts against the blocking wall as a support, the bottom end of the elastic member abuts against the abutting portion of the push button, It is used to provide elastic force to push the positioning block towards the direction of the annular flange.

Preferably, the rear handle is provided with a motor button, and the motor button is located behind the positioning unit. Therefore, when the user presses the motor button with the index finger, the push button can be turned with the thumb at the same time, which is convenient for the user to operate with one hand.

The detailed structure, features, assembly or usage of the rotary holding device provided by the present invention will be described in the detailed description of the following embodiments. However, those skilled in the field of the present invention should be able to understand that these detailed descriptions and the specific examples enumerated for implementing the present invention are only for illustrating the present invention, and are not intended to limit the patent application scope of the present invention.

Description of drawings

Fig. 1 is a perspective view of the appearance of an electric hedge shear applying the rotary holding device of the present invention.

FIG. 2 is an exploded perspective view of the rotary holding device of the present invention.

FIG. 3 is a partial sectional view of the rotary holding device of the present invention, mainly showing that the push button is in the locked position.

Fig. 4 is similar to Fig. 3, mainly showing that the push button is in the unlocked position.

Figure 5 is an end view of the rotary gripping device of the present invention.

Fig. 6 is similar to Fig. 5, mainly showing that the rear handle is rotated 90 degrees clockwise.

Fig. 7 is similar to Fig. 5, mainly showing that the rear handle is rotated 90 degrees counterclockwise.

10: Electric hedge shears

12: Scissors

14: front handle

16:Motor button

18: battery

20: Rotary holding device

30: shell

32: Ring flange

34: positioning slot

36: The first guiding recess

38: The first guiding convex part

40: rear handle

41: side cover

42: screw

43: bottom

44: socket part

45: Front connection part

452: top opening

454: bottom opening

456: wall

46: rear connection part

47: Grip

48: The second guiding convex part

49: Second guiding recess

50: positioning unit

51: push button

52: pivot joint

53: Pushed Department

54: Positioning block

55: lug

56:Receipt department

57: Connecting rod

58: Elastic parts

59: The first shaft

60: Second shaft

P1: locked position

P2: Unlock position

Detailed ways

The applicant hereby explains that throughout the specification, including the embodiments described below and the claims of the scope of application, all directional nouns are based on the directions in the drawings. Secondly, in the embodiments and drawings to be described below, the same element numbers represent the same or similar elements or their structural features.

Please refer to FIG. 1 , the rotary holding device 20 of the present invention is mainly applied to the electric hedge shear 10 , since the electric hedge shear 10 is the prior art and the focus of the present invention, its local structure and operating principle are not described here. Please refer to FIG. 1 and FIG. 2 again, the rotary holding device 20 of the present invention includes a housing 30 , a rear handle 40 , and a positioning unit 50 .

The inside of the casing 30 is used to install a motor (not shown in the figure), and the aforementioned motor is further connected to a cutting edge 12 located at the front end of the casing 30, so that the cutting edge 12 can be driven by the motor to move. In addition, a front handle 14 straddles the top of the housing 30 , and two ends of the front handle 14 are fixedly connected to two opposite sides of the housing 30 . As shown in Figure 2, the rear end of the housing 30 has an annular flange 32, and the outer peripheral surface of the annular flange 32 has three positioning grooves 34, and the three positioning grooves 34 are arranged at equal intervals relative to the center of the annular flange 32 , that is, two adjacent positioning grooves 34 are separated by 90 degrees. As shown in FIG. 3 , the outer peripheral surface of the annular flange 32 further has two first guiding recesses 36 and a first guiding protrusion 38 adjacently arranged between the first guiding recesses 36 . A guiding concave portion 36 and the first guiding convex portion 38 both extend in a ring shape.

The rear handle 40 is formed by connecting two side covers 41 with a plurality of screws 42 . As shown in FIG. 3 , the rear handle 40 has a bottom 43 , a socket 44 , a front connecting portion 45 , a rear connecting portion 46 and a grip 47 , wherein the socket 44 is integrally connected to the bottom 43 The front end of the sleeve part 44 has two second guide protrusions 48 and a second guide recess 49 adjacent to the second guide protrusions 48 on the inner peripheral surface of the sleeve part 44. The guiding convex part 48 and the second guiding concave part 49 both extend in an annular shape. As shown in FIGS. The bottom two ends respectively have a top opening 452 and a bottom opening 454, the bottom end of the rear connecting portion 46 is integrally connected to the rear end of the bottom 43, and the front and rear ends of the grip portion 47 are integrally connected to the top of the front connecting portion 45 And the top end of the rear connecting portion 46. As shown in FIG. 3 again, the rear handle 40 is sleeved on the annular flange 32 of the casing 30 with the sleeve portion 44, and is embedded in the casing with the second guiding convex portions 48 and the second guiding concave portions 49. The first guide recesses 36 and the first guide protrusions 38 of the handle 30 allow the rear handle 40 to rotate relative to the casing 30 .

In addition, as shown in FIGS. 2 and 3 , the grip portion 47 of the rear handle 40 is provided with a motor button 16 that is electrically connected to the motor (for example, through wires), and the motor can be started by pressing the motor button 16. The way of connection is the prior art, and will not be repeated here. The bottom 43 of the rear handle 40 is provided with two batteries 18 arranged side by side, and the aforementioned motors are powered by the two batteries 18 .

As shown in Figures 2 and 3, the positioning unit 50 is located in front of the motor button 16 and has a push button 51, a positioning block 54, a connecting rod 57 and an elastic member 58 (here, a compression spring is used as an example), Wherein, the push button 51 has a pivoting portion 52 and a pushed portion 53, the push button 51 is pivotally arranged on the top of the front connecting portion 45 of the rear handle 40 with the pivoting portion 52, and the pushed portion 53 passes through the top opening 452 (As shown in Figure 4) exposed on the top surface of the rear handle 40, so that the push button 51 can pivot relative to the rear handle 40 when the pushed part 53 is pushed by an external force; the positioning block 54 is located in the rear handle 40 and passes through the bottom opening 454 is adjacent to the annular flange 32 of the housing 30, the top surface of the positioning block 54 has a pair of lugs 55, and the rear side of the positioning block 54 has a contact portion 56; the connecting rod 57 is located in the rear handle 40, and the connecting rod The top end of the connecting rod 57 is eccentrically arranged on the pivot joint 52 of the push button 51 by using a first shaft member 59, and the bottom end of the connecting rod 57 is pivotally arranged on the two lugs of the positioning block 54 by using a second shaft member 60 55, so that when the connecting rod 57 is driven by the push button 51, the positioning block 54 can be linked; the elastic member 58 is located in the rear handle 40, and the top of the elastic member 58 abuts against a blocking wall 456 of the rear handle 40 as a support, and the elastic member 58 The bottom end of the bottom end abuts against the abutting portion 56 of the positioning block 54 , so that the elastic member 58 provides elastic force to push the positioning block 54 toward the direction of the annular flange 32 .

If you want to adjust the angle of the rear handle 40, first push the push button 51 to the unlocking position P2 as shown in Figure 4, and the push button 51 will drive the positioning block 54 through the connecting rod 57 to break away from the original positioning slot 34. That is to say, turn the rear handle 40 to adjust the angle until it is adjusted to a proper angle, then release the thrust applied to the push button 51, so that the positioning block 54 is clamped in the corresponding positioning groove 34 under the action of the elastic member 58. On the one hand, the positioning block 54 drives the push button 51 back to the locking position P1 shown in FIG. 3 through the connecting rod 57 , and the positioning of the rear handle 40 is completed at this time.

During actual operation, the user (taking the right-handed person as an example) holds the front handle with the left hand, then holds the grip portion 47 of the rear handle 40 with the right hand, and then presses the motor button 16 with the index finger to make the motor drive the cutting blade 12 Do pruning. When you want to adjust the angle of the rear handle 40, use your thumb to push the push button 51 to the unlocked position P2 as shown in Figure 4, and you can adjust the angle of the rear handle 40 according to actual needs, for example, the rear handle 40 shown in Figure 5 The handle 40 is located at the 0 degree position. In FIG. 6 it is shown that the rear handle 40 is rotated 90 degrees clockwise. In FIG. The positioning of the rear handle 40 can be completed by pushing the push button 51 . In other words, the user keeps the entire electric hedge trimmer 10 in a balanced state with one hand, and then uses the other hand to control the start and stop of the motor and adjust the angle of the rear handle 40, which not only helps the user to quickly change the use state , and allow users to operate at a more ergonomic angle, thereby achieving the effects of improving work efficiency, reducing fatigue and increasing comfort.

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention, and are not intended to limit the present invention. Within the spirit and principles of the present invention, any modifications, equivalent replacements, improvements, etc., shall be included in the protection scope of the present invention.

Claims (6)

1. A rotary holding device for electric hedge shears, comprising: A housing, the rear end of the housing has an annular flange, and the annular flange has a plurality of positioning grooves; a rear handle, rotatably disposed on the annular flange of the housing; and A positioning unit has a push button, a positioning block, a connecting rod and an elastic member. The push button is pivotally arranged on the rear handle and can pivot relative to the rear handle between a locked position and an unlocked position. The positioning block is arranged in the rear handle and adjacent to the annular flange of the housing, the connecting rod is arranged in the rear handle, one end of the connecting rod is eccentrically pivoted on the push button, and the other end of the connecting rod pivotally arranged on the positioning block, so that the connecting rod can be driven by the push button to link the positioning block, when the push button is at the locking position, the positioning block is locked in a positioning groove of the housing, The rear handle cannot rotate relative to the housing. When the push button is in the unlocked position, the positioning block is separated from the positioning grooves, so that the rear handle can rotate relative to the housing. The elastic member is arranged in the rear handle and Push the positioning block toward the direction of the annular flange of the casing. 2. The rotary holding device for electric hedge shears according to claim 1, wherein the positioning grooves are arranged at equal intervals relative to the center of the annular flange. 3 . The rotary holding device for electric hedge shears according to claim 1 , wherein the push button has a pushed portion, and the pushed portion is exposed on the top surface of the rear handle. 4 . 4. The rotary holding device for electric hedge shears according to claim 1, wherein, the outer peripheral surface of the annular flange of the housing has two first guide recesses and one adjacent to the first guides. The first guide protrusion between the guide recesses, the inner peripheral surface of the front end of the rear handle has two second guide protrusions and a second guide recess adjacent to these second guide protrusions , the second guiding protrusions of the rear handle are embedded in the first guiding recesses of the annular flange, and the second guiding recesses of the rear handle are embedded in the first guiding recesses of the annular flange Convex. 5. The rotary holding device for electric hedge shears according to claim 1, wherein the rear handle has a blocking wall, the push button has a resisting portion, and one end of the elastic member abuts against the blocking wall , the other end of the elastic member abuts against the abutting portion of the push button. 6 . The rotary holding device for electric hedge shears according to claim 1 , further comprising a motor switch disposed on the rear handle and behind the positioning unit. 7 .

Images