TWM648678U - Ball-shaped joint puller - Google Patents

Abstract

This invention includes: a puller, which has a force-applying end and a force-receiving end, and a center line of the puller passes through the force-applying end and the force-receiving end; a body, which extends to the force-applying end of the puller. A force-applying end; an insertion section that extends to the force-receiving end of the extractor and is connected to the body; and a screw hole that sinks into the interior of the body from the force-applying end along the centerline direction. The threaded hole is connected to a threaded section of a ball joint, allowing the extractor to engage the ball joint. The insertion section is forced to push the ball joint away from a vehicle body along the centerline direction.

Description

Ball joint puller

The invention belongs to the field of maintenance, and in particular refers to a puller for smoothly removing a ball joint from a vehicle.

In Figure 5, a conventional ball joint (Ball Joint) 80, also known as a monk's head, has a threaded section 82 that passes through a body 84 of the vehicle and then locks a nut 83. The ball joint 80 secures the end of a tie rod 81 and becomes a part of the steering of the vehicle. After traveling for a period of time, the vehicle may be contaminated with a lot of dust or dirt, which may cause the ball joint 80 and the vehicle body 84 to be difficult to separate easily.

During maintenance, the nut 83 is usually removed to expose part of the threaded section 82 . Due to personal habits or insufficient maintenance equipment, a hammer 85 may be used to tap the threaded section 82 to allow the ball joint 80 to leave the vehicle body 84 .

However, the striking area of the hammer 85 is slightly larger than the end surface of the threaded section 82. If there is little experience or carelessness, the hammer 85 may miss or hit the car body 84 by mistake, which will waste physical strength and delay maintenance time. Many disassembly tools are available on the market to help remove the ball joint 80 from the vehicle body 84 .

In Taiwan Patent No. 422169, the disassembly tool includes: a tool head and a handle. The tool head has two parallel fork arms, the roots of the two fork arms are connected to each other, and a connecting section extends in the opposite direction, so that the tool head assumes a Y functional shape. The thickness of the fork arm gradually becomes thinner from the root to the tip. The handle is used in conjunction with the connecting section. The handle and the tool head are integrated and have been found in Taiwan Patent No. M444253.

During use, a maintenance personnel holds the handle and the hammer with both hands respectively. The tip of the fork arm faces a gap where the ball joint is adjacent to the vehicle body. The hammer strikes the end of the handle, so that the fork arm continues to penetrate deeply and expand the gap to reach the ball joint and the car body. The purpose of car body separation.

However, the handle vibrates due to the impact of the hammer, causing damage to the nervous system of the arm. At the same time, the hammer may knock apart the modular structure of the handle.

In Taiwan Patent No. M365237, the disassembly tool includes: a lever mechanism and a manual hydraulic component. The lever mechanism is disassembled into a base, an actuating rod and a pivot. A pivot portion protrudes from the side of the actuating rod and can be inserted between the two lugs of the base. The pivot passes through the two juxtaposed lugs and the pivot portion, so that the actuating rod and the base rotate around the pivot. Like a seesaw, one drive end of the actuator goes down and a pressure end goes up. On the contrary, the driving end rises and the pressure end falls. The manual hydraulic component adds a lifting rod, a pivot column and a joint to a body. A piece of C-shaped buckle blocks one end of the pivot post passing through the base, and installs the body between the base and the driving end. The joint guides external oil to flow into the body, causing the lift rod to push up the driving end, and together with the insertion end of the pressure end close to the base to be closed as a normal state.

During maintenance, it is not necessary to insert the gap, and only the insertion end like a tuning fork is pressed against the car body. Use oil pumping to lower the height of the lifting rod so that the pressure end opens and contacts the threaded section. The joint introduces oil into the body again, causing the lifting rod to support the driving end like a jack, so the pressure end is closed close to the insertion end, pushing the threaded section together with the ball joint to leave the vehicle body.

However, the main body is filled with oil, causing the pressure end to close the insertion end and cannot resist the vehicle body, thereby interfering with the execution of the separation operation. The body pumps oil, lowers the height of the lift rod, and opens the pressure end, which takes a lot of time.

In view of this, the author of this case proposes a puller. The main purpose is to use a linear medium. The external force is output to the ball joint through the puller to generate vibration, so that the ball joint can be pulled away from the car body, allowing the ball joint to be pulled away from the car body. Repair tools have new options.

To achieve the above purpose, this invention includes: a puller, which has a force-applying end and a force-receiving end, and a center line of the extractor passes through the force-applying end and the force-receiving end; a body, which extends to the force-applying end of the extractor; an insertion section extending to the force-receiving end of the extractor and connected to the body; and, a screw hole that sinks into the force-applying end along the centerline direction. inside the body. The threaded hole is connected to a threaded section of a ball joint, allowing the extractor to engage the ball joint. The insertion section is forced to push the ball joint away from a vehicle body along the centerline direction.

Preferably, the screw hole passes through a tapered surface and is adjacent to the force-applying end of the puller.

Preferably, the extractor also has an enlarged diameter portion, which connects the body and the insertion section together.

Preferably, the outer surface of the enlarged diameter portion forms an embossed pattern.

Preferably, the enlarged diameter portion is provided with a through hole, and an axis passes through the center of the through hole and is perpendicular to the center line for a rod to pass through the through hole of the enlarged diameter portion.

Preferably, there is a diameter difference between the enlarged diameter portion and the insertion section to form an annular surface.

In order to make the purpose, features and advantages of this invention easy to understand, one or more preferred embodiments are described in detail below with reference to the attached drawings.

Next, embodiments of the present case will be described with reference to the drawings. In the drawings, the same reference numerals are used to represent the same or similar structures or units. It is foreseeable that the described embodiments are only some examples of this case, not all the embodiments. Based on the above example, other embodiments can be deduced, or the structure can be modified or changed as necessary, which all fall within the scope of protection of this case.

In the following description, directional terms such as "upper", "lower", "left", "right", "front", "rear", "inside", "outside" and "side" only refer to the direction of the drawings. . The use of directional terms is for a better and clearer description and understanding of this case. It does not express or imply that the devices or components described must have specific orientations, structures, and operations, and therefore cannot be understood as limiting the technical content of this case.

Unless there are specific and clear specifications and limitations, in the following description, "installed", "connected", "connected" or "located on" should be understood in a broad sense, such as fixed connection, detachable connection, integral connection, mechanical connection , directly connected, indirectly connected or internally connected between two components. For those skilled in the field of this case, they can understand the specific meaning of the above terms in each embodiment and even this case based on common knowledge or experience.

Unless otherwise stated, in the following description, "plurality" means two or more.

In Figure 1, a preferred embodiment of a puller 10 is shown. In this embodiment, a top end of the puller 10 is defined as a force-applying end 11 , and a bottom end is regarded as a force-receiving end 12 . From the force-applying end 11 to the force-receiving end 12 , the puller 10 is divided into a body 13 , an enlarged diameter portion 16 and an insertion section 19 . Among them, one end of the expanded diameter portion 16 extends from the force-applying end 11 to the body 13 , and the other end extends from the force-receiving end 12 to the insertion section 19 , so the expanded diameter portion 16 connects the body 13 and the force-receiving end 12 . Insert segments 19 together. In addition, a through hole 17 penetrates the inside of the expanded diameter portion 16 , and both ends of the through hole 17 are connected to an embossed pattern 18 formed on the outer surface of the expanded diameter portion 16 .

As shown in Figure 2, draw a center line 22 along the length direction of the puller 10. The center line 22 passes through the force applying end 11 and the force receiving end 12 and is perpendicular to an axis at the center of the through hole 17. twenty one. Along the direction of the center line 22 , a screw hole 14 is sunk into the interior of the body 13 from the force-applying end 11 . A larger diameter end of a tapered surface 15 is connected to the force applying end 11 , and a smaller diameter end is connected to the screw hole 14 , so the screw hole 14 is adjacent to the force applying end 11 through the tapered surface 15 .

After the nut 83 is removed, the opening of the screw hole 14 faces the threaded section 82 , and the tapered surface 15 plays a guiding role in the threaded section 82 to complete the preliminary work of the maintenance process.

As shown in Figure 3, a maintenance personnel (not shown) selects the pinching mode, pinches the embossed pattern 18 (see Figure 1) with his fingers, and twists the enlarged diameter portion 16 to rotate. The threaded hole 14 engages the threaded section 82 so that the body 13 is combined with the ball joint 80 and maintains a distance from the vehicle body 84 .

In the pinch mode, if it cannot be ensured that the fingers will not slip from the embossed lines 18. Referring to Figure 4 , the maintenance personnel has to use the extension mode to pass a rod 32 through the through hole 17 to drive the enlarged diameter portion 16 and even the entire extractor 10 to rotate around the center line 22 .

During maintenance, an automatic tool 30 can engage a sleeve 31 which covers the insertion section 19 and resists an annulus 20 . After the automatic tool 30 is started, the sleeve 31 separates the ball joint 80 and the vehicle body 84 through the puller 10 .

The ring surface 20 here generally refers to the larger diameter of the enlarged diameter portion 16 and the smaller diameter of the insertion section 19. There is a gap between them to form a ring-like plane.

Simply put, the puller 10 becomes a linear medium that can output the impact force of the automatic tool 30 as an external force to the ball joint 80 to generate vibration. The ball joint 80 moves up and down in the direction of the centerline 22 without exceeding the distance from the body 13 to the car body 84, so that the ball joint 80 is separated from the car body 84, allowing the maintenance personnel to hold the Pull rod 81 and pull up the ball joint 80.

In this embodiment, the automatic tool 30 may be a pneumatic hammer or an electric hammer. Those who are interested can refer to Taiwan Patent Nos. M534076 and I453098 and U.S. Patent Nos. 6,962,211, 7,523,791 and 7,886,838.

Those skilled in the art can understand and make changes to the above embodiments without departing from the broad concept of the present invention. Therefore, this case is not limited to the specific embodiments disclosed in the specification. All modifications made based on the spirit and technical scope of this case should be covered and protected by the textual content defined in the scope of the patent application.

[prior art] 80: Ball joint 81:Tie rod 82:Threaded section 83: Nut 84:Car body 85:hammer [this creation] 10: Puller 11: Force end 12:Stressed end 13:Ontology 14:Screw hole 15: cone surface 16: Expanded diameter part 17:Through hole 18:Embossed texture 19:Insert segment 20:Torus 21:Axis 22: Center line 30:Automatic tools 31:Sleeve 32: Rod body

Figure 1 depicts the specific structure of a preferred embodiment of the puller of this invention. Figure 2 illustrates the corresponding relationship between the puller and the ball joint from a cross-sectional perspective. Figure 3 shows the use of the puller as a medium to output external force to the ball joint. Figure 4 shows the rod driving the extractor. Figure 5 depicts prior art using a hammer to strike a spherical joint.

10: Puller

11: Force end

12:Stressed end

13:Ontology

14:Screw hole

15: cone surface

16: Expanded diameter part

17:Through hole

19:Insert segment

20:Torus

21:Axis

22: Center line

30:Automatic tools

31:Sleeve

80: Ball joint

81:Tie rod

82:Threaded section

84:Car body

Claims (7)

A ball joint puller, including: A puller (10) has a force applying end (11) and a force receiving end (12). A centerline (22) of the puller (10) passes through the force applying end (11) and the force receiving end (12). end(12); A body (13) extending to the force-applying end (11) of the puller (10); An insertion section (19) extends to the force-bearing end (12) of the extractor (10) and is connected to the body (13); and A screw hole (14) is sunk into the interior of the body (13) from the force-applying end (11) along the direction of the centerline (22); The screw hole (14) is connected to a threaded section (82) of a ball joint (80), so that the puller (10) is combined with the ball joint (80); the insertion section (19) is forced to push the ball joint The joint (80) exits a vehicle body (84) along the centerline (22). The ball joint extractor according to claim 1, wherein the screw hole (14) passes through a tapered surface (15) and is adjacent to the force-applying end (11) of the extractor (10). The ball joint puller as claimed in claim 1, wherein the puller (10) also has an enlarged diameter portion (16) that connects the body (13) and the insertion section (19). The ball joint puller according to claim 3, wherein an embossed pattern (18) is formed on the surface of the enlarged diameter portion (16). The ball joint puller according to claim 3, wherein the enlarged diameter portion (16) is provided with a through hole (17), and an axis (21) passes through the center of the through hole (17) and is perpendicular to the center. Line(22). The ball joint puller according to claim 5, wherein a rod (32) passes through the through hole (17) of the enlarged diameter portion (16). The ball joint puller as claimed in claim 3, wherein there is a diameter difference between the enlarged diameter portion (16) and the insertion section (19) to form an annular surface (20).

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