TW201726327A - Hand tool comprising a tool body, a head, two rolling parts and a commutation unit - Google Patents

Abstract

This present invention discloses a hand tool, which comprises a tool body that is penetrated a perforated groove on the top and concaved a side groove at the side of the perforated groove, a head that is pivoted in the perforated groove and the outer ring side of head is a smooth stopper portion and the center of the head is set a working part, two rolling parts that are set at the two sides of the side groove and the rolling parts are set on two sides of the axis of the head, and a commutation unit that is pivoted on the side grooves and can change a direction to ensure that one rolling ball presses against the stopper portion of head, so that the rolling balls can generate an effect for limiting the head in a single direction. A smooth contacting and easy processing is used between the stopper portion of head and the rolling part. The contact angle problem is not needed to be considered during assembly and connection. And the assembly and connection process is easy. And the head can be operated in two different directions by using the directional change of commutation unit.

Description

Hand tool

The present invention relates to a hand tool, and more particularly to a hand tool that can change the direction of rotation through a reversing unit.

According to the conventional ratchet hand tool, the outer ring of the rotating head is provided with a ratchet wheel, and at the same time, an elastic ratchet is provided on the side of the head, and when the head is turned to the elastic compression side, the The ratchet does not limit the ratchet of the head, so that the head is idling, and when it is rotated in the other direction, the ratchet will relatively limit the head, so that the head is fixed and can be transmitted through the head. The part drives the screw or the nut to rotate, and the number of teeth passing through the ratchet teeth can adjust the angle of the idling. The denser the number of teeth, the less the angle of idling, the more the space can be operated in a narrow space.

Only the higher the number of teeth of the ratchet, the higher the precision of the relative manufacturing. At the same time, when the ratchet is installed, the accuracy of the installation and the matching of the ratchet can be higher, which will increase the processing cost. The assembly is not easy, and the operation process easily breaks the engagement between the ratchet and the ratchet, resulting in a situation in which the card cannot be restrained.

The present invention provides a hand tool comprising: a tool body having a through slot therein, the side of the slot being recessed with a side slot, a head portion, the head portion being pivoted In the through slot, the outer ring side of the head is a smooth stop, and the center of the head is The utility model is provided with a working part, two rolling parts, which are arranged on two sides of the side groove, the rolling elements are located on both sides of the axis of the head, a reversing unit, and the reversing unit is pivoted On the side groove, the reversing unit generates a change in direction to press one of the balls against the stop portion of the head, so that the balls can produce a single direction limiting head.

According to the hand tool provided by the invention, the rolling member can be in contact with the stop portion of the head, and the one-way anti-reverse action is generated when rotating, and the contact surface between the rolling member and the head is smooth, so any position can be When the card is reached, the contact angle is not considered, the processing cost is low and the assembly is easy, and the limit can be generated as long as the contact is made, the angle of the idling is not large, and the operation is suitable for operation in a small space. The adjustment to the unit to select the rolling element that is in contact with the head produces a two-way anti-reverse effect.

10‧‧‧Tool body

11‧‧‧through slot

12‧‧‧ side slot

20‧‧‧ head

21‧‧‧stop

22‧‧‧Working Department

221‧‧‧ cogging

30‧‧‧Rolling parts

31‧‧‧ Roller

40‧‧‧Commutation unit

41‧‧‧

42‧‧‧ Slider

43‧‧‧Cylinder

431‧‧‧ slotting

50‧‧‧Flexible components

51‧‧‧Flexible arm

511‧‧‧ recessed section

52‧‧‧Reversing arm

53‧‧‧ Spring

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a partial cross-sectional view showing a preferred embodiment of the present invention.

Figure 2 is a schematic view of the operation of the preferred embodiment of the present invention.

Figure 3 is a partial cross-sectional view showing a second embodiment of the present invention.

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

1 and 2 are a partial cross-sectional view and a schematic view of a preferred embodiment of the present invention. The hand tool includes a tool body 10 having a through slot 11 therethrough. The side of the slot 11 is recessed with a side slot 12; a head 20 is pivotally disposed in the slot 11 so that the head 20 can The outer ring side of the head portion 20 is a smooth stop portion 21, and a working portion 22 is disposed at the center of the head portion 20, in this embodiment. The middle portion is a tooth groove 221, which may also be a rod body; the two rolling members 30 are formed by a roller 31, which may also be a ball or a needle roller. The rolling elements 30 are disposed on the two sides of the side groove 12, so that the rolling elements 30 are located on both sides of the axis of the head 20; a reversing unit 40, the reversing unit 40 is pivotally disposed on the side slot 12 The reversing unit 40 is provided with a shifting lever 41 in the side slot 12, and the shifting lever 41 generates a change in direction with the rotation of the reversing unit; an elastic member 50, the elastic member 50 is attached to the rolling Between the member 30 and the reversing unit 40, the elastic member 50 is formed by a reed. Each of the elastic members 50 is provided with a resilient arm 51. The elastic arm 51 is concavely provided with a concave portion 511. The rolling members 30 are located in the recessed portion 511. The elastic arms 51 are elastically pressed against the rolling member 30. The elastic arms 51 are provided with a reversing arm 52. The lever 41 is in contact with the reversing arm 52, and the reversing arm 52 can be swung by the lever 41 to adjust the position of the elastic arm 51.

In order to further understand the structural features of the present invention, the means of the techniques and the intended effects, the manner of use of the present invention will be described. It is believed that the invention can be more deeply and specifically understood as follows;

Referring to FIG. 2, when the shifting lever 41 of the reversing unit 40 is used to move the reversing arm 52, the reversing arm 52 drives the elastic arm 51 to rotate, so that one of the rolling members 30 can be coupled with the head. The stopper portion 21 of the portion 20 is in contact with each other, and the other rolling member 30 is in a state of not contacting the stopper portion 21. When the head portion 20 is rotated in the clockwise direction, the rolling member 30 and the stopper portion 21 are combined with the stopper portion 21. Forming a card The state of the limit position makes the head 20 unable to rotate, and the workpiece can be rotated. Conversely, when the head 20 rotates in the counterclockwise direction, the rolling member 30 is pressed into the side groove 12, so that the head 20 can be generated. When idling, when the commutation is to be performed, the reversing unit can be toggled so that the lever 41 can drive the reversing arm 52, thereby adjusting the position of the elastic arms 51 to allow the other rolling member 30 and the head 20 to The contact can produce the effect of the reversing clamping. The rolling member 30 of the present invention and the head 20 are smoothly contacted by the smooth stopping portion 21 and the rolling member 30, and between the rolling member 30 and the head portion 20 The contact area is large, the torsion is increased, and even if the wear is still able to maintain the pressure between the head 20 and the rolling member 30 through the elastic force of the elastic member 50, the utility model can continue to be used, and the service life is long, and the rolling member 30 and the head portion 20 are The processing and assembly are easy, and the angle of the idling is small, as long as the reverse direction can be locked, and it is suitable for operation in a small space. The change of the position of the reversing unit 40 can generate the locking limit of two different directions, and the operation is simple and easy. It is worth mentioning that the recessed portion 511 can The rolling member 30 for generating a limiting effect, avoid the influence of external force from the resilient arm 51 persons.

Please refer to FIG. 3, which is a schematic view of the operation of another embodiment of the present invention. The main structure is the same as that of the previous embodiment. The elastic member 50 is composed of two springs 53. One end of the 53 is elastically pressed against the rolling elements 30, and the other end of the springs 53 is connected to the reversing unit 40. The reversing unit 40 is a slider 42 which is slidably disposed on the slider 42 The side groove 12 can be moved to the left and right. The position of the spring 53 can be relatively changed through the change of the position of the slider 42, and the rolling member 30 contacting the head 20 can be changed. The slider 42 is closer to the rolling member 30. The spring 53 will eject the rolling member 30 into contact with the head 20, and the rolling member 30 relatively far from the slider 42 will be carried away by the spring 53 and will fall into the side groove 12 and cannot be with the head. 20 contacts.

Please refer to FIG. 4, which is an action diagram of another embodiment of the present invention. The main structure is the same as that of the preferred embodiment, so it will not be described again. The reversing unit 40 is provided with a cylinder 43. The cylinder 43 is provided with two slots 431 having different opening directions. The slit 431 has a width that tapers toward the opening. When the head 20 rotates counterclockwise, the stopping portion 21 drives the rolling member 30 to roll to a narrow position because the gap becomes smaller. The rolling member 30 has a locking effect on the stopping portion 21, and when the head portion 20 is rotated clockwise, the rolling member 30 will fall into a wider position of the slit 431, so that the rolling member 30 cannot be locked. The head 20, the head 20 and the idling.

The above embodiments of the present invention are provided for the purpose of illustration only, and are not intended to limit the scope of the present invention, that is, the various modifications that can be made within the scope of the listed patents are included in the application of the present application. In the scope of patents.

10‧‧‧Tool body

11‧‧‧through slot

12‧‧‧ side slot

20‧‧‧ head

21‧‧‧stop

22‧‧‧Working Department

221‧‧‧ cogging

30‧‧‧Rolling parts

31‧‧‧ Roller

40‧‧‧Commutation unit

41‧‧‧

50‧‧‧Flexible components

51‧‧‧Flexible arm

511‧‧‧ recessed section

52‧‧‧Reversing arm

Claims (10)

A hand tool includes at least one tool body; a tool body is integrally provided with a through groove, and a side groove is recessed on a side of the groove; and a head portion is pivotally disposed on the groove The outer ring side of the head is a smooth stop, and the center of the head is provided with a working portion; two rolling members are disposed on both sides of the side groove, and the rolling The components are located on both sides of the axis of the head; a reversing unit, the reversing unit is pivotally disposed on the side slot, and the reversing unit generates a change in direction to make one of the balls and the head stop The stops are pressed against each other so that the balls can produce a single direction limiting head. The hand tool of claim 1, further comprising an elastic member disposed between the rolling member and the reversing unit, the elastic member being provided with two elastic arms, the elastic The arm members are respectively elastically pressed against the rolling members, and the elastic member is provided with a reversing arm in the middle of the elastic arms. The reversing unit is provided with a lever, and the lever is in contact with the reversing arm. The lever can swing the reversing arm to adjust the position of the resilient arm. The hand tool of claim 2, wherein the elastic member is a reed. The hand tool of claim 2, wherein the elastic arm is concavely provided with a concave portion, and the rolling member is limited to be located in the concave portion. The hand tool according to claim 1, further comprising two elastic members disposed between the rolling members and the reversing unit, wherein one end of the elastic members is elastically pressed Corresponding rolling element, the reversing unit is provided with a slider, and the slider is assembled at both ends thereof The elastic member, the slider of the reversing unit slides to adjust the position of the elastic member. The hand tool of claim 5, wherein the elastic element is a spring. The hand tool according to claim 1, wherein the reversing unit is provided with a cylinder, and the circumference of the cylinder is provided with two slots having different opening directions, and the width of the slots is toward the opening. The end is tapered, and the rolling elements are disposed in the slot, and the rolling elements are rotated to switch between the different rolling members and the head. The hand tool of claim 1, wherein the rolling member is a ball or a roller. The hand tool of claim 1, wherein the working part is a tooth groove. The hand tool of claim 1, wherein the working part is a rod body.