TWI616283B - Sleeve with elastic coupling - Google Patents

Abstract

The sleeve has a sleeve body and an elastic positioning body; the sleeve body has a driving portion and a turning portion coaxially connected with the driving portion, and the outer peripheral surface of the driving portion The elastic positioning body has a C-shaped flaky shape, and has a top end, a bottom end located at an opposite end position of the top end, and a radial deformation portion connected between the top end and the bottom end, the radial deformation portion The elastic deformation of the radial direction can be performed by the external force, and the top end of the elastic positioning body and the bottom end are engaged in the annular groove of the sleeve body, and the radial deformation portion protrudes out of the ring groove; It can achieve the effect of temporarily combining and positioning with the existing socket wrench, and thus can reduce the opening depth required for the ring groove, in order to maintain the overall strength, thereby improving the service life and the like.

Description

Sleeve with elastic coupling

The present invention relates to a sleeve, and more particularly to a sleeve having an elastically coupled positioning.

Press, as shown in the first figure, the sleeve 1 is mainly used as a toggle connection interface between the socket wrench and the object to be turned (such as a hexagonal screw, etc.), and the outer cross section of the sleeve is hexagonal. However, in order to temporarily position the sleeve 1 and the socket wrench 9, the early sleeve 1 will have a plurality of notches 2 at the end corners of its outer peripheral surface, and the sleeves of the socket wrench 9 A C-shaped buckle 8 is disposed on the inner peripheral wall of the hole, so that when the sleeve 1 is combined with the socket wrench 9, as shown in the second and third figures, the C-shaped buckle 8 on the socket wrench 9 can be used. The notch 2 on the sleeve 1 is temporarily engaged and coupled to prevent the sleeve 1 from being detached from the socket wrench 9. However, this design, in addition to the need to open the slot 2 in the sleeve 1, can only be used with the special socket wrench 9 (the socket wrench 9 with the C-shaped buckle 8), not only additional expenditure The cost of purchasing a special socket wrench 9 is more likely to be limited in use.

In addition, there is also a sleeve 3 which, as shown in the fourth and fifth figures, is provided with a radially annular card slot 4 on its outer peripheral surface for a C-shaped buckle 5 to be latched. The sleeve 3 can be matched with the existing socket wrench 6 without the need to purchase a special socket wrench. However, since the sleeve 6 has to be engaged with the C-shaped buckle 5, the groove depth of the card slot 4 is deep, resulting in the thickness D originally provided by the sleeve 6, and the thickness d at the position of the card slot 4 is thinned. The result is reduced strength and easy damage and shortened service life.

In view of the above, in order to improve the prior art, the conventional sleeve has a temporary combination and positioning function with a special socket wrench, and there is a problem that the use is limited and the cost of purchasing a special socket wrench must be additionally paid, and The provision of a C-shaped buckle on the sleeve results in a decrease in the overall strength and a problem of easy damage and shortened service life. Accordingly, the present invention provides a sleeve with elastic coupling positioning, which mainly comprises a sleeve body and An elastic positioning body; the sleeve body has a driving portion and a turning portion coaxially connected with the driving portion, the outer peripheral surface of the driving portion has a ring groove, and the elastic positioning body has a C-shaped flaky shape and has a top end a bottom end located at an opposite end position of the top end and a radial deformation portion connected between the top end and the bottom end, the radial deformation portion being elastically deformed by an external force, the top end of the elastic positioning body The bottom end is snapped into the annular groove of the sleeve body, and the radial deformation portion protrudes out of the annular groove; thereby not only achieving a temporary knot with the existing socket wrench Orientation of efficacy, thus reducing more open annular groove of the desired depth, dimensions of the overall intensity, and other effects further enhance the service life.

"Knowledge"

1‧‧‧ sleeve

2‧‧‧ Missing slot

9‧‧‧Socket wrench

8‧‧‧C-shaped buckle

3‧‧‧Sleeve

4‧‧‧ card slot

5‧‧‧C-shaped buckle

6‧‧‧Socket wrench

D‧‧‧thickness

D‧‧‧thickness

"This creation"

100‧‧‧Sleeve with elastic coupling

10‧‧‧Sleeve body

11‧‧‧ Drive Department

111‧‧‧ drive hole

112‧‧‧ Ring groove

113‧‧‧First arrival

114‧‧‧Secondary

12‧‧‧Turning

121‧‧‧Turn hole

20‧‧‧elastic positioning body

21‧‧‧Top

22‧‧‧ bottom

23‧‧‧ Radial deformation

231‧‧‧Outside

232‧‧‧ inside

233‧‧‧ outside side

234‧‧‧ inside

24‧‧‧Top straight section

25‧‧‧Bottom straight section

D‧‧‧thickness

D‧‧‧thickness

90‧‧‧Socket wrench

91‧‧‧ Set of holes in the inner wall

The first figure is a perspective view of a sleeve.

The second figure is a perspective view of the combination of the sleeve and the special socket wrench shown in the first figure.

The third figure is a sectional view of the combination of the sleeve and the special socket wrench shown in the first figure.

The fourth figure is a perspective view of another sleeve and socket wrench.

The fifth figure is a sectional view of the combination of the sleeve and the socket wrench shown in the fourth figure.

The sixth drawing is an exploded perspective view of a preferred embodiment of the present invention.

Figure 7 is a perspective assembled view of the embodiment shown in Figure 6.

The eighth figure is a three-dimensional combination of the embodiment shown in the sixth figure and a socket wrench.

Figure 9 is a cross-sectional view showing the combination of the embodiment shown in Figure 6 and a socket wrench.

Figure 11 is a cross-sectional view showing another embodiment of the present invention in combination with a socket wrench.

The eleventh figure is a sectional view of a combination of another embodiment of the present invention and a socket wrench.

In order to enable the reviewing committee to have a better understanding and recognition of the features and characteristics of the present invention, the following preferred embodiments are illustrated as follows: Referring to the sixth to ninth drawings, a preferred embodiment of the present invention is preferred. The embodiment of the present invention provides a sleeve 100 having an elastically coupled positioning, which mainly includes a sleeve body 10 and an elastic positioning body 20, wherein: please refer to the sixth to ninth drawings, the sleeve body 10 has a a driving portion 11 and a turning portion 12 coaxially connected to the driving portion 11 . The driving portion 11 has a hexagonal cross section, and the free end of the driving portion 11 has a driving hole 111 extending inwardly. In the embodiment, the driving hole 111 is a four-corner hole, and the outer peripheral surface of the driving portion 11 has a ring groove 112. The free end of the turning portion 12 has an inwardly extending pivoting hole 121, and the turning hole 121 The driving hole 111 is connected to the driving hole 111, and the aperture of the driving hole 121 is larger than the aperture of the driving hole 111. In the embodiment, the turning hole 121 is a hexagonal hole.

Referring to the sixth to ninth drawings, the elastic positioning body 20 is made of metal and has a C-shaped flaky shape, which can define a top end 21, a bottom end 22 at an opposite end position of the top end, and a connection to a radial deformation portion 23 between the top end 21 and the bottom end 22, the radial deformation portion 23 is elastically deformed by an external force; the top end 21 of the elastic positioning body 20 is engaged with the bottom end 22 In the annular groove 112 of the sleeve body 10, the radial deformation portion 23 protrudes out of the annular groove 112. In detail, the sleeve body 10 includes a first abutting edge 113 and a second abutting edge 114. The first abutting edge 113 and the second abutting edge 114 are adjacent to the ring groove. 112 and opposite to each other, the top end 21 and the bottom end 22 of the elastic positioning body 20 can respectively abut the first flange 113 and the second flange 114.

Therefore, the above is a description of each component of the sleeve 100 with elastic coupling positioning and an assembly method thereof according to a preferred embodiment of the present invention, and then the use characteristics thereof are as follows: when the creation is elastically combined When the driving portion 11 of the positioning sleeve 100 is sleeved with a socket wrench 90 (as shown in the eighth and ninth views), the radial deformation portion 23 originally protruding outside the ring groove 112 is subjected to the The inner wall 91 of the socket wrench 90 is pressed against the inner wall 91 to be radially deformed, that is, the outer side surface 231 of the radial deformation portion 23 is inwardly displaced toward the inner side surface 232, so that the radial deformation is performed at this time. The portion 23 accumulates an elastic preload force which is pushed toward the outer side surface 231 (i.e., toward the inner wall 91 of the sleeve hole), so that the radial deformation portion 23 and the inner wall 91 of the sleeve hole of the socket wrench 90 are temporarily generated. The positioning effect is combined in order to prevent the self-disengagement between the sleeve 100 and the socket wrench 90 which are elastically combined and positioned.

In addition, since the radial deformation portion 23 of the elastic positioning body 20 has the capability of radial deformation in the present invention, the depth of the annular groove 112 provided on the sleeve body 10 only needs to be extremely shallow, as shown in FIG. The thickness d of the sleeve body 10 at the position of the ring groove 112 is almost the same as the thickness D of the other positions of the sleeve body 10, and the overall strength can be ensured to achieve the effect of improving the service life.

Furthermore, in the above embodiment, the outer side surface 231 of the radial deformation portion 23 is an outer convex arc surface, and the inner side surface 232 of the radial deformation portion 23 is a concave arc surface. However, in fact, as shown in the tenth figure, the outer side surface 233 of the radial deformation portion 23 may also be a convex convex surface, and the inner side surface 234 of the radial deformation portion 23 is a concave concave surface. Or, as shown in FIG. 11 , the elastic positioning body 20 has a top end 21 , a bottom end 22 and a radial deformation portion 23 , and has a top end connected between the top end 21 and the radial deformation portion 23 . Straight section 24 and one connected to the The bottom end straight section 25 between the bottom end 22 and the radial deformation portion 23; all of which achieve the same effect.

Next, in the present invention, when the radial deformation portion 23 of the elastic positioning body 20 is deformed in the radial direction, the distance between the top end 21 and the bottom end 22 also changes.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. All of the related art in the art will be equally changed according to the present invention. The scope of coverage.

Claims (10)

A sleeve with elastic coupling positioning, which mainly comprises: a sleeve body having a driving portion and a turning portion coaxially connected with the driving portion, the outer peripheral mask of the driving portion has a ring groove, the sleeve The body includes a first abutting edge and a second abutting edge, the first abutting edge and the second abutting edge abutting the ring groove and facing each other; an elastic positioning body having a C-shaped flaky shape and having a top end and a a bottom end of the opposite end position and a radial deformation portion connected between the top end and the bottom end, the radial deformation portion being elastically deformed by an external force, the elastic positioning body being located in the ring groove The top end of the elastic positioning body and the bottom end are respectively adapted to the first abutting edge and the second abutting edge, and the radial deformation portion protrudes outside the annular groove. The sleeve with elastic coupling positioning according to the first aspect of the patent application, wherein the driving portion has a hexagonal cross section. The sleeve with elastically coupled positioning according to claim 1, wherein the free end of the driving portion has an inwardly extending driving hole, and the free end of the turning portion has a pivoting hole extending inwardly . The sleeve with elastic coupling positioning according to the third aspect of the patent application, wherein the driving hole is a four-corner hole. The sleeve with elastic coupling positioning according to the third aspect of the patent application, wherein the turning hole is a hexagonal hole. The elastically-positioned sleeve according to the third aspect of the invention, wherein the trigger hole is in communication with the driving hole, and the diameter of the turning hole is larger than the diameter of the driving hole. The sleeve with elastic coupling positioning according to the first aspect of the invention, wherein the outer side surface of the radial deformation portion is an outer convex arc surface, and the inner side surface of the radial deformation portion is a concave arc surface. The sleeve with elastic coupling positioning according to the first aspect of the invention, wherein the outer side surface of the radial deformation portion is an outer convex cone surface, and the inner side surface of the radial deformation portion is a concave concave surface. The elastically-positioned sleeve according to the first aspect of the invention, wherein the elastic positioning body further has a top straight portion connected between the top end and the radial deformation portion and a connection to the bottom end The bottom end of the radial deformation portion is a straight section. The elastically-positioned sleeve according to the first aspect of the invention, wherein the radial deformation of the elastic positioning body changes the distance between the top end and the bottom end when the radial deformation portion is radially deformed.