TWI721563B - Wiper arm puller - Google Patents

Abstract

A wiper arm puller is provided, including a base assembly and a pushing piece. The base assembly has a base and two arms. The two arms is movably disposed on the base. The pushing piece is movably screwed on the base.

Description

Wiper arm remover

The invention relates to hand tools, and particularly relates to a wiper arm detacher.

The wiper arm is one of the necessary devices for all vehicles. It is mainly used to scrape off the debris attached to the front windshield to maintain the cleanliness of the front windshield to ensure that the driver has a better view. When the following rainy weather, the wiper is attached to the front windshield. Of rain. It is understandable that after a period of use, the wiper arm will gradually age and be damaged. At this time, it needs to be replaced with a new product. Usually, the replacement procedure is to remove the nut, and shake the wiper arm up and down to loosen relative to the shaft of the bearing. .

However, the wiper arm is often exposed to wind, sun, and rain, and its use environment is more severe. Therefore, the wiper arm is often deformed or rusted and stuck on the shaft body. At this time, it cannot pass through. Simply shaking will separate the wiper arm from the shaft body, and improper force will cause damage to the bearing, breakage of the wiper arm, or unexpected impact of the wiper arm on the front windshield.

Therefore, it is necessary to provide a novel and progressive wiper arm detacher to solve the above-mentioned problems.

The main purpose of the present invention is to provide a wiper arm detacher, which can be It stably supports the wiper arm, and provides accurate force to support the shaft body, and then smoothly separates the wiper arm from the shaft body.

In order to achieve the above objective, the present invention provides a wiper arm detacher, which includes a base assembly and a pusher. The seat assembly includes a base body and two arm members. The base body is provided with a screw hole along a pushing direction. The two body parts of the two arm members can be relatively open and closed on the base body along the pushing direction. In the view of the pushing direction, the two bodies of the two arm members are located on the same side of the screw hole, and the two claws of the two arm members respectively extend along an extension direction. Viewed along the extension direction, the two arm members The two claws are located on two opposite sides of the screw hole, the two claws are respectively connected to the two bodies transversely, and in the transverse direction of the extension, the sides of the two claws facing each other jointly define a working space , The working space is for accommodating a part of the wiper arm; the pushing member is movably screwed to the screw hole, and the pushing member extends through the working space.

1: Seat assembly

11: Matrix

111: Work Department

112: Connection

12: screw hole

13: Chute

131: opening

2: arm parts

21: Body

211: Abutment Surface

212: Rongbu

213: Tolerance

214: Sliding Department

22: Claw

221: arc concave section

222: Work Space

3: screw

31: The first thread

32: The second threaded part

33: Without thread

34: positioning recess

35: Drive head

4: Push the piece

5: Limit parts

6: Positioning components

61: latch

71: first length

72: second length

73: third length

8: Push direction

81: Extension direction

9: Wiper arm

91: Shaft

Fig. 1 is a perspective view of an embodiment of the present invention.

Figure 2 is a right side view of Figure 1;

Fig. 3 is a schematic diagram of the two arms close together according to an embodiment of the present invention.

Figure 4 is a partial cross-sectional view of an embodiment of the present invention.

Figure 5 is an exploded view of an embodiment of the present invention.

Fig. 6 is a base body of an embodiment of the present invention.

Fig. 7 is a schematic diagram of the use of an embodiment of the present invention.

The following examples are only used to illustrate the possible implementation aspects of the present invention, but they are not intended to limit the scope of protection of the present invention, and are described first.

Please refer to FIGS. 1 to 7, which show a preferred embodiment of the present invention. The wiper arm detacher of the present invention includes: a base assembly 1 and a pusher 4.

More specifically, the base assembly 1 includes a base 11 and two arm members 2. The base 11 is provided with a screw hole 12 along a pushing direction 8 and the two body parts 21 of the two arm members 2 can be perpendicular to the The pushing direction 8 is arranged on the base 11 in a relatively open and closed manner. Along the pushing direction 8 viewed, the two bodies 21 of the two arms 2 are located on the same side of the screw hole 12, and the two of the two arms 2 are located on the same side of the screw hole 12. The claws 22 respectively extend along an extension direction 81. Along the extension direction 81, the two claws 22 of the two arm members 2 are located on opposite sides of the screw hole 12, and the two claws 22 are respectively connected transversely to the two The body 21, and in the horizontal extension direction 81, the sides of the two claws 22 facing each other jointly define a working space 222 for accommodating a portion of a wiper arm 9 and the two claws 22 is provided for stably supporting the wiper arm 9 in the pushing direction 8. The pushing member 4 is movably screwed to the screw hole 12, and the pushing member 4 extends through the working space 222 to push through a shaft 91 of the wiper arm 9 and the two claws The portion 22 can smoothly pull the wiper arm 9 out of the shaft 91 smoothly.

More specifically, perpendicular to the pushing direction 8, at least parts of the two claws 22 facing each other are far away from each other to jointly define the working space 222, and the pushing member 4 extends through the Work space 222. Wherein, one side of the two claw portions 22 facing each other includes an arc concave section 221, and the arc concave section 221 can clamp a part of the shaft 91.

Preferably, the thickness of the claw portion 22 is tapered toward the direction away from the body 21 so that the claw portion 22 can be inserted into the gap to support the wiper arm 9.

Preferably, the two body parts 21 are slidably arranged on the base 11, and the design of the sliding arrangement is convenient for the user to move and adjust quickly and can have more fine positions for selection. Specifically, the base 11 further includes There is a sliding groove 13, two ends of the sliding groove 13 penetrate the base 11 to respectively form two openings 131, and the two sliding parts 214 of the two body parts 21 are respectively movably embedded in the sliding groove 13 through the two openings 131; , The extending direction of the sliding groove 13 is perpendicular to the pushing direction 8. More specifically, the opening 131 has a "T" shape, and the T-shaped structure can give the sliding portion 214 better support and restraint without affecting the smoothness of sliding.

In this embodiment, the base 11 includes a working portion 111 and a connecting portion 112, the connecting portion 112 is connected to the working portion 111 transversely, the working portion 111 is provided with the screw hole 12, and the connecting portion 112 is provided with the In the sliding groove 13, the two body parts 21 are provided on the connecting part 112; wherein, viewed from the vertical direction 8, the seat body assembly 1 is in the shape of "ㄈ", so as to be quickly clipped to the wiper arm 9.

In detail, the base assembly 1 further includes at least one screw 3, the at least one screw 3 is rotatably threaded through at least one of the body 21 to control its displacement, and the at least one screw 3 can be accurately threaded through its threads. The position of the arm 2 is driven by the ground control, so that it can reliably clamp the shaft 91 laterally.

More specifically, the number of the at least one screw 3 is one, and the screw 3 includes a first threaded portion 31 and a second threaded portion 32, and the thread direction of the first threaded portion 31 is opposite to the second threaded portion 32 In the thread direction, one body 21 is screwed to the first threaded part 31, and the other body 21 is screwed to the second threaded part 32. The user only needs to turn the screw 3 to control the two bodies. The part 21 operates synchronously, which is quite fast, convenient and reliable.

Preferably, the screw 3 further includes a driving head 35 for external driving to make the entire screw 3 rotate. The user can drive the screw 3 in different ways according to changes in the surrounding environment, such as manual rotation, Rotate with hand tools and so on.

Preferably, the two limiting members 5 are respectively protrudingly provided at the furthest relative distance between the first threaded portion 31 and the second threaded portion 32, and the two limiting members 5 are used for limiting and stopping the two body portions. 21 to avoid excessive rotation causing the two body 21 to escape from the screw 3.

In this embodiment, the screw 3 further includes an unthreaded portion 33 that connects the first threaded portion 31 and the second threaded portion 32, and the unthreaded portion 33 is relatively rotatably positioned on the base body 11 is a positioning component 6, in this way, can effectively improve the stability of the screw 3 during rotation control; wherein, the first threaded portion 31 and the second threaded portion 32 are symmetrically connected to the unthreaded portion 33 Two sides.

In addition, the outer diameter of the first threaded portion 31 is the same as the outer diameter of the second threaded portion 32 and greater than the outer diameter of the unthreaded portion 33, and the unthreaded portion 33, the first threaded portion 31, and the second threaded portion A positioning recess 34 is defined between the threaded portions 32. The positioning assembly 6 includes at least one pin 61. The at least one pin 61 is inserted into the base 11 and protrudes into the positioning recess 34, so that the screw 3 is sufficient. It is rotatably positioned on the base 11.

Preferably, the two abutting surfaces 211 of the two body portions 21 face each other perpendicular to the pushing direction 8, and each of the abutting surfaces 211 is recessed with at least one accommodating portion 212. The number is equal to the number of the at least one plug 61; wherein, when the two body portions 21 are close to each other so that the two abutting surfaces 211 are attached to each other, and at least one receiving portion 212 of the two abutting surfaces 211 communicates with each other to form At least one receiving slot 213 so that the at least one plug 61 can be received in the at least one receiving slot 213. In this embodiment, the number of the at least one plug 61 is two, so each of the abutting surfaces 211 is provided with two accommodating portions 212, and the number of the at least one accommodating groove 213 is two.

It is worth mentioning that, perpendicular to the pushing direction 8, the maximum length of the base 11 is defined as a first length 71, and the farthest distance between the first threaded portion 31 and the second threaded portion 32 is defined as a first Two lengths 72, the length of the driving head 35 is defined as a third length 73.

In practice, the ratio of the first length 71 to the second length 72 is preferably between 0.4 and 0.6, so that the two arms 2 can have a proper maximum opening distance and can be applied to the market The common specifications of the wiper arm 9; and, the ratio of the third length 73 to the second length 72 is preferably between 0.1 to 0.2, so that the drive head 35 can have a more appropriate length for driving, And it won’t be too long The environment creates interference problems.

In summary, the structure of the wiper arm detacher of the present invention is simple and easy to assemble and produce, and the movement of the arm member to regulate and control the displacement is reliable and accurate, which can effectively assist the user in the detachment of the wiper arm.

1: Seat assembly

11: Matrix

2: arm parts

21: Body

22: Claw

221: arc concave section

222: Work Space

3: screw

4: Push the piece

Claims (10)

A wiper arm detacher, comprising: a base assembly, including a base body and two arm parts, the base body is provided with a screw hole along a pushing direction, and the two body parts of the two arm parts can be relatively stretched perpendicular to the pushing direction Closely arranged on the base body, viewed along the pushing direction, the two body parts of the two arm members are located on the same side of the screw hole, and the two claw parts of the two arm members respectively extend in an extension direction along the extension In view of the direction, the two claws of the two arms are located on opposite sides of the screw hole, and the two claws are respectively connected to the two bodies transversely, and in the transverse direction of the extension, the two claws face each other One side jointly defines a working space for accommodating a part of a wiper arm; a pushing member is movably screwed to the screw hole, and the pushing member extends through the working space. The wiper arm detacher according to claim 1, wherein the two bodies are slidably disposed on the base body, and the seat body assembly further includes at least one screw, and the at least one screw is rotatably threaded and screwed to at least one of the body Department to control its displacement. The wiper arm detacher according to claim 2, wherein the number of the at least one screw is one, the screw includes a first threaded portion and a second threaded portion, the first threaded portion has a thread direction opposite to the second threaded portion For the thread direction of the threaded part, one body is screwed to the first threaded part, and the other body is screwed to the second threaded part, and the screw is used to control the two bodies to operate synchronously. The wiper arm detacher according to claim 3, wherein two limiting members are respectively protrudingly provided at the farthest relative distance between the first threaded portion and the second threaded portion, and the two limiting members are used to limit and stop the Two body parts. The wiper arm detacher according to claim 3, wherein the screw further includes an unthreaded portion, the unthreaded portion connects the first threaded portion and the second threaded portion, and the unthreaded portion is relatively rotatably positioned on the One of the base body positioning components. The wiper arm detacher according to claim 5, wherein the first threaded portion and the second threaded portion are symmetrically connected to two sides of the unthreaded portion; the outer diameter of the first threaded portion and the second threaded portion The outer diameter of the part is the same and larger than the outer diameter of the unthreaded part, and a positioning recess is defined between the unthreaded part, the first threaded part, and the second threaded part. The positioning component includes at least one pin, the At least one plug is set on the base and protrudes into the positioning recess. The wiper arm detacher according to claim 6, wherein the two abutting surfaces of the two body parts face each other perpendicular to the pushing direction, and each of the abutting surfaces is recessed with at least one accommodating portion, and the at least one The number of accommodating parts is equal to the number of the at least one plug; wherein, when the two body parts are close to each other so that the two abutting surfaces are attached to each other, and at least one accommodating part of the two abutting surfaces communicates with each other to form at least one A container, the at least one pin is accommodated in the at least one container. The wiper arm detacher according to claim 2, wherein the base body further includes a sliding groove, two ends of the sliding groove penetrate the base body to form two openings respectively, and the two sliding parts of the two body parts are respectively formed by the two openings The sliding groove is movably embedded; wherein, the extending direction of the sliding groove is perpendicular to the pushing direction. The wiper arm detacher according to any one of claims 1 to 8, wherein in the direction perpendicular to the pushing direction, at least part of one side of the two claws facing each other is far away from each other to jointly define the working space , The extension of the pushing member passes through the working space. The wiper arm detacher according to claim 7, wherein two limiting members are respectively protrudingly provided at the farthest relative distance between the first threaded portion and the second threaded portion, and the two limiting members are used to limit and stop the The base body further includes a sliding groove, the two ends of the sliding groove penetrate the base body to respectively form two openings, and the two sliding parts of the two bodies are respectively movably embedded in the sliding groove by the two openings; wherein , The extension direction of the chute is perpendicular to the pushing direction; in the direction perpendicular to the pushing direction, at least parts of the two claws facing each other are far away from each other to jointly define a working space, the pushing direction The extension of the piece is through the work Space; the thickness of the claw portion is tapered toward the direction away from the body; the screw further includes a driving head for external driving to make the entire screw rotate; the opening is in a "T" shape; the The base body includes a working part and a connecting part, the connecting part is horizontally connected to the working part, the working part is provided with the screw hole, the connecting part is provided with the sliding groove, and the two body parts are provided at the connecting part; Viewed from the pushing direction, the seat assembly is in the shape of "ㄈ"; one side of the two claws facing each other includes an arc concave section; in the direction perpendicular to the pushing direction, the maximum length of the base is one The first length, the farthest distance between the first threaded portion and the second threaded portion is a second length, the length of the drive head is a third length, and the ratio of the first length to the second length is 0.4 The ratio of the third length to the second length is between 0.1 and 0.2; the number of the at least one pin is two, each of the abutting surfaces is provided with two receptacles, and the at least one receptacle The number is two.

Images