TWI589409B - Double-headed universal joint for a driving tool - Google Patents

Description

Double-head universal joint for driving tools

The present invention relates to joints, and more particularly to a double-headed universal joint for driving a tool.

The joint can be connected to the objects extending in different axial directions, and provides a connecting device, which can be extended into a narrow space for locking or disassembling work. In order to meet the narrow internal space of different structural shapes, the industry has developed Vientiane joints are yawed at different angles depending on the requirements of the various working directions. Such a universal joint can be freely rotated or oscillated in the body by using the enlarged portion of the male joint, and the neck portion of the male joint can be used to avoid the rod body, so that the male joint can have a large swing amplitude, such as TWI348415, TWM297817. This is the type of universal joint disclosed.

However, in such conventional universal joint technology, although the yaw angle of the male joint is increased through the neck portion, the body still abuts against the male joint to limit the range of motion of the male joint, in other words, the male joint The yaw angle is still not large enough to be applied to narrow spaces of various special angles; in addition, in the prior art, only the male connector can be oscillated, and the female connector at the corresponding end is fixed, limiting its disguise Applicable angles, there are shortcomings that need to be improved.

Therefore, it is necessary to provide a novel and progressive double-headed universal joint. To solve the above problems.

The main object of the present invention is to provide a double-headed universal joint for driving a tool. The joints at the two ends of the main body can be yawed with respect to the main body, so that more yaw angles can be used for the user, and also The width of the joint can be yawed; and the joints are designed to be yawed in two stages, so they are not restrained by the body, and can be freely yawed. Therefore, it can be applied to a larger yaw angle. In the space.

To achieve the above object, the present invention provides a double-headed universal joint for driving a tool, comprising a body and two swing assemblies. The two swinging components are respectively disposed at opposite ends of the body, and each of the swinging components has a connecting member pivoted to the body, and a joint pivoted to the connecting member, the joint is pivoted with respect to the connecting member It is perpendicular to the pivoting direction of the connecting member relative to the body, and the two connecting members are perpendicular to each other with respect to the pivoting direction of the body.

1,1A, 1B‧‧‧Double-head universal joint

2, 2A, 2B‧‧‧ ontology

21‧‧‧Positioning holes

22,22A‧‧‧positioning parts

23‧‧‧First elastic parts

24‧‧‧Abutment hole

25‧‧‧After the top piece

26‧‧‧Second elastic parts

3‧‧‧Swing assembly

31‧‧‧Connecting parts

32‧‧‧Connectors

321‧‧‧ male connector

322‧‧‧ female connector

33‧‧‧Abutment

4‧‧‧First shaft

5‧‧‧Second shaft parts

6,6A‧‧‧Restrictions

61‧‧‧ inner wall

62,62A‧‧‧ card slot

621‧‧‧ sloping wall

1 is a perspective view of a first preferred embodiment of the present invention.

Figure 2 is an exploded view of the first preferred embodiment of the present invention.

Figure 3 is another perspective view of the first preferred embodiment of the present invention.

Figure 4 is a perspective view of a second preferred embodiment of the present invention.

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

6 and 7 are diagrams showing the state of use of the second preferred embodiment of the present invention.

Figure 8 is a perspective view of a third preferred embodiment of the present invention.

The following is a description of the possible embodiments of the present invention, and is not intended to limit the scope of the invention as claimed.

Referring to FIG. 1 to FIG. 3, there is shown a first preferred embodiment of the present invention. The double-headed universal joint 1 for driving a tool of the present invention comprises a body 2 and two swing assemblies 3.

The main body 2 is an integrally formed member, and the two swinging assemblies 3 are respectively disposed at opposite ends of the main body 2. Each of the swinging assemblies 3 has a connecting member 31 pivoted on the main body 2, and a pivoting connection The joint 32 of the member 31 is perpendicular to the pivoting direction of the connecting member 31 with respect to the pivoting direction of the connecting member 31, and the pivoting directions of the two connecting members 31 relative to the body 2 are mutually vertical.

In more detail, each of the joints 32 is pivotally connected to a connecting member 31 by a first shaft member 4, and each of the connecting members 31 is pivotally connected to the body 2 by a second shaft member 5. The phase pivoting operation, wherein the axial directions of the first and second shaft members 4, 5 are substantially perpendicular to each other, so that the amplitude of the yaw of each of the joints 32 can be wider and comprehensive. Moreover, the axial directions of the two second shaft members 5 are further designed to be perpendicular to each other, so that when the driving tool is used, there are more kinds of yaw patterns to correspond to more different environments. In the first embodiment, the two joints 32 are a combination of a male joint 321 and a female joint 322, but not limited thereto, and the joints 32 are all of the same type (such as two male joints). 321 or two of the female connectors 321) are also indispensable.

It is worth mentioning that, during use, the connector 32 may be required to remain stationary, or the connector 32 does not need to have a large swing amplitude. In this case, the second embodiment may be as shown in FIG. 4 to FIG. One of the embodiments shows a double-headed universal joint 1A for driving a tool and a body 2A. Wherein the second embodiment is different from the first embodiment in that the double-headed universal joint 1A is another The limiting member 6 is disposed between the first position and the second position. When the limiting member 6 is in the first or second position, the limiting member 6 is included. At least one connecting member 31 of the swinging assembly 3 is at least limited, so that at least the connecting member 31 of the swinging assembly 3 cannot be yawed relative to the body 2A. In other words, the swinging component 3 can be quickly and conveniently switched into a fixed mode by the movement of the restricting member 6, and the user can save working time and improve working efficiency without disassembling and replacing the connecting device of another fixed angle.

In more detail, in the second preferred embodiment, the limiting member 6 is tubular and sleeved on the body 2A, and when the limiting member 6 is in the first or second position, the limiting member One of the inner walls 61 surrounds at least a portion of the joint 32, thereby limiting the deflection of the joint 32, and the user is free to select the joint 32 for use in a swing or fixed mode. In more detail, in the direction of movement of the restricting member 6 perpendicularly, each of the joints 32 has an abutting portion 33 of substantially the same size as the body 2A, so that when the restricting member 6 is located at the first or second position The inner wall 61 of the restricting member 6 abuts against the abutting portion 33 more closely in the lateral direction, whereby the lateral supporting force can be stably provided in the circumferential direction to fix the joint 32. It can be understood that the limiting member 6 can also only fix the connecting member 31 so that the joint 32 can still swing; and when the joint 32 swings to a desired angle, the limiting member can be operated/designed more. 6 is maintained in abutting state with the joint 32, whereby the effect of maintaining the swing angle of the joint 32 can be achieved.

The positioning of the limiting member 6 is further illustrated. The body 2A is provided with a positioning member 22, and the inner wall 61 of the limiting member 6 is provided with two slots that are selectively engageable with the positioning member 22. 62, the restriction member 6 is selectively positionable in the first or second position. Each of the card slots 62 is a groove that is circumferentially opened along the inner wall 61 of the limiting member 6. When the limiting member 6 is in the first position, the positioning member 22 is engaged with the card slot 62. The limiter 6 is limited When the limiting member 6 is located in the second position, the positioning member 22 is engaged with the other slot 62, and the limiting member 6 limits the female connector 322, and the user can use the same. The demand is fixed. Further, in the second preferred embodiment, the body 2A defines a positioning hole 21, and the positioning member 22 is partially received in the positioning hole 21, and two ends of a first elastic member 23 respectively respectively The hole wall of the positioning hole 21 and the positioning member 22, the first elastic member 23 forcibly moves the positioning member 22 in the direction of the inner wall 61 of the limiting member 6, so that the positioning member 22 and the card slot can be ensured. The 62 phase is abutted against the top, and the problem that the restraining member 6 is loosened and moved is avoided. In addition, it should be noted that the card slot 62 can be replaced with the accommodating hole as long as it can be engaged with the positioning member 22, for example, the card slot can be replaced with a accommodating hole; In other embodiments, a card slot may be added between the first and second positions to enable the restricting member 6 to perform various different stages of the swinging assembly 3.

In addition, due to the processing tolerance relationship, or in order to enable the restricting member 6 to move smoothly on the body 2A, the restricting member 6 has a slight gap with the body 2A in the vertical moving direction, and in order to avoid the gap This causes the restriction member 6 to be shaken and unstable. Preferably, the body 2A is further provided with an abutting hole 24 opposite to the positioning hole 21, and an abutting member 25 is partially received in the abutting hole 24, and two ends of a second elastic member 26 respectively respectively The hole wall of the abutment hole 24 and the abutting member 25 are selectively engageable with a card slot 62. The restriction member 6 and the body 2A are tightly and stably formed by the design of the abutting member 25 and the positioning member 22 moving toward the relatively distant direction while maintaining the abutment against the inner wall 61 of the restricting member 6. The connection relationship ensures that the restriction member 6 is not arbitrarily shaken. In the second embodiment, the positioning member 22 and the abutting member 25 are respectively in the same plane as the center of the body 2A. Alternatively, each of the card slots 62 has an inclined wall 621 inclined toward the center of the restricting member 6, when the restricting member 6 When the first or second position is to be disengaged, the positioning member 22 and the abutting member 25 can be respectively moved along the inclined wall 621 to smoothly disengage from the card slot 62.

It can be understood that the number and the aspect of the limiting member 6 are not limited to the above, and the double-headed universal joint 1B and the body of the driving tool can be used as one of the third preferred embodiment of FIG. 2B. The double-headed universal joint 1B further includes two limiting members 6A movably disposed on the body 2B, each of the limiting members 6A being movable between a third position and a fourth position, when the limiting member 6A is located In the third position, the limiting member 6A is not limited to the swinging assembly 3. When the limiting member 6A is in the fourth position, the limiting member 6A limits at least the connecting member 31 of the swinging assembly 3. In brief, the double-headed universal joint 1B in the third embodiment can simultaneously restrict the two swinging assemblies 3 compared to the second embodiment. It is to be understood that the body 2B is also provided with two positioning members 22A. The two positioning members 22A are respectively disposed at two ends of the body 2B, and the inner wall of each of the limiting members 6A is provided with two selectively The positioning member 22A is fitted with the card slot 62A, so that the limiting member 6A is selectively positionable in the third or fourth position.

In summary, the present invention is used for a double-headed universal joint of a driving tool, and a two-stage yaw is designed for a joint on a single end, so that the joint can have a wide yaw angle and a yaw state.

Moreover, the joints at the two ends of the main body can be further designed to be yawed, so that the level of application can be further greatly improved, and a more diverse and finer angle yaw state can be selected for use. In addition, the design is limited to fix the joint according to the requirements, the structure is simple, easy to use and easy to carry.

In summary, the overall structural design, practicability and efficiency of the present invention are indeed fully in line with the needs of industrial development, and the disclosed structural invention is also unprecedentedly innovative. The new structure, so its "newness" should be undoubted, and the invention can be more effective than the conventional structure, so it is also "progressive", which fully complies with the application requirements of the invention patents of the Chinese Patent Law. The stipulation is that a patent application is filed in accordance with the law, and the bureau should be reviewed at an early date and affirmed.

1‧‧‧Double-head universal joint

2‧‧‧ Ontology

31‧‧‧Connecting parts

321‧‧‧ male connector

322‧‧‧ female connector

Claims (10)

A double-headed universal joint for driving a tool, comprising: a body, an integrally formed member; and two swinging components respectively disposed at opposite ends of the body, each of the swinging components having a pivoting body a connecting member and a joint pivoted to the connecting member, the pivoting direction of the joint relative to the connecting member is perpendicular to a pivoting direction of the connecting member relative to the body, and the pivoting direction of the connecting member relative to the body They are perpendicular to each other. The double-headed universal joint for driving a tool according to claim 1, wherein each of the joints is pivotally connected to a connecting member by a first shaft member, and each of the connecting members is a second shaft member and the body. The two first shaft members are axially substantially perpendicular to each other, and the two second shaft members are axially perpendicular to each other. The two joints are a combination of a male joint and a female joint. The double-headed universal joint for driving a tool according to claim 1, further comprising a restricting member disposed on the body, the restricting member being movable between a first position and a second position, when the limit is When the piece is in the first or second position, the limiting member limits at least a connecting member of the swinging component, at least the connecting member of the swinging component cannot be yawed relative to the body. The double-headed universal joint for driving a tool according to claim 3, wherein the restricting member is tubular and sleeved on the body, and when the restricting member is located at the first or second position, the restriction One of the inner walls surrounds at least a portion of the joint, thereby limiting the deflection of the joint. A double-headed universal joint for driving a tool according to claim 4, wherein each of the joints has an abutting portion of substantially the same size as the body in a direction of movement of the restricting member, when the restricting member is located In the first or second position, the inner wall of the restricting member abuts against the abutting portion laterally. A double-headed universal joint for driving a tool according to claim 4, wherein the body is provided with a certain The inner wall of the limiting member is provided with two slots that are selectively engageable with the positioning member, so that the limiting member is selectively positionable in the first or second position. A double-headed universal joint for driving a tool according to claim 6, wherein each of the card slots has an inclined wall that is inclined toward a center direction of the restricting member. A double-headed universal joint for driving a tool according to claim 7, wherein in the direction of movement of the restricting member, each of the joints has an abutting portion of substantially the same size as the body, when the restricting member is located In the first or second position, the inner wall of the limiting member abuts laterally of the abutting portion; wherein the joint is a male joint and the other joint is a female joint, when the limiting member When the first position is located, the limiting member is limited to the male connector. When the limiting member is located in the second position, the limiting member is limited to the female connector; the body defines a positioning hole, and the positioning component is partially received Provided in the positioning hole, the two ends of a first elastic member respectively respectively abut against the hole wall of the positioning hole and the positioning member; the body further defines an abutting hole opposite to the positioning hole, and a portion of the abutting portion is received The abutting hole is disposed, and the two ends of a second elastic member respectively abut against the hole wall of the abutting hole and the abutting member, and the abutting member is selectively engageable with a card slot; The positioning member and the abutting member are respectively in the same plane as the center of the body. The double-headed universal joint for driving a tool according to claim 1, further comprising two restricting members movably disposed on the body, wherein the restricting members are movable in a third position and a fourth position When the limiting member is in the third position, the limiting member is not limited to the swinging component, and when the limiting member is in the fourth position, the limiting member limits the connecting member of the swinging component at least. The double-headed universal joint for driving a tool according to claim 9, wherein the body is provided with two positioning members, and the two positioning members are respectively disposed at two ends of the body, and the inner wall of each of the limiting members is provided with two A card slot can be selectively inserted into a positioning member to selectively position the limiting member in the third or fourth position.