TWM606328U - Hinge structure - Google Patents

Abstract

A hinge structure including a base, a torque element and a rotation shaft is provided. The base has an axial hole, and an inner wall of the axial hole has a plurality of positioning concave portions. The torque element is disposed in the axial hole and includes a torque providing portion and a plurality of positioning convex portions. The torque providing portion surrounds a central axis of the axial hole to form a through hole, and the torque providing portion has a split adjacent to the through hole. The positioning convex portions are connected to the torque providing portion and corresponding to the positioning concave portions respectively. The central axis is perpendicular to a virtual plane, a virtual straight line on the virtual plane passes through an orthogonal projection of the split on the virtual plane and passes through the central axis, and orthogonal projections of the positioning convex portions on the virtual plane are symmetrical to the virtual straight line. The rotation shaft is disposed as passing through the through hole.

Description

Pivot structure

The present invention relates to a pivot structure, and especially to a pivot structure containing torsion elements.

With the advancement of wireless transmission and image capture technology, small-scale photography devices have gradually become popular in the consumer market. In order to enable the lens of the photographing device to rotate, the lens is generally pivotally connected to the base through a pivot structure. However, with the miniaturization of photographic devices, the volume of the pivot structure is correspondingly reduced, and it is difficult to provide sufficient internal space for the torsion element of the pivot structure to be screw-locked and assembled.

The new creation provides a pivot structure, which can save the configuration space of the torsion element and stably arrange the torsion element.

The pivot structure of the present invention includes a base, a torsion element and a rotating shaft. The seat body has a shaft hole, and an inner wall of the shaft hole has a plurality of positioning recesses. The torsion element is arranged in the shaft hole and includes a torsion providing part and a plurality of positioning convex parts. The torsion force providing portion surrounds a central axis of the shaft hole to form a through hole, and the torsion force providing portion has a fracture adjacent to the through hole. The positioning convex parts are connected to the torque providing part and correspond to the positioning concave parts respectively. The central axis is perpendicular to a virtual plane, and a virtual straight line on the virtual plane passes through the orthographic projection of the fracture on the virtual plane and passes through the central axis. The orthographic projections of these positioning protrusions on the virtual plane are symmetrical to the virtual straight line. The rotating shaft passes through the through hole.

In an embodiment of the present invention, the hardness of the aforementioned torsion element is greater than the hardness of the base.

In an embodiment of the present invention, there is a gap between the aforementioned torsion force providing portion and the inner wall of the shaft hole.

In an embodiment of the present invention, the number of the above-mentioned positioning protrusions is three, and the number of the positioning recesses is three.

In an embodiment of the present invention, the above-mentioned virtual straight line passes through the orthographic projection of one of the positioning protrusions on the virtual plane.

In an embodiment of the present invention, in a direction parallel to the central axis, the torsion force providing portion and the at least one positioning convex portion are respectively located at different positions.

In an embodiment of the present invention, the aforementioned torsion element includes an extension part that extends from the torsion force providing part in a direction parallel to the central axis, and these positioning protrusions are formed on the extension part.

In an embodiment of the present invention, the above-mentioned positioning protrusions extend into the corresponding positioning recesses along the radial direction of the shaft hole.

Based on the above, the present invention uses the mutual cooperation of the positioning convex part of the torsion element and the positioning concave part of the base to fix the torsion element, so there is no need to assemble the torsion element inside the pivot structure by screw locking, which can save torque Component configuration space. In addition, the multiple positioning protrusions of the torsion element are distributed in a symmetrical manner, so that the force of the torsion element is uniform and the structure is relatively stable.

Figure 1 is a perspective view of the pivot structure of an embodiment of the invention. Fig. 2 is an exploded view of the pivot structure of Fig. 1. FIG. 3 shows some components of the pivot structure of FIG. 1, which are viewed along the axial direction of the pivot structure. Please refer to FIGS. 1 to 3, the pivot structure 100 of this embodiment includes a base 110, a torsion element 120 and a rotating shaft 130. The base body 110 has a shaft hole 110a, the torsion element 120 is disposed in the shaft hole 110a of the base body 110, and the rotating shaft 130 passes through the torsion element 120 to provide the pivot structure 100 by friction between the rotating shaft 130 and the torsion element 120 Required torque. The rotating shaft 130 can be connected to a frame 50 as shown in FIG. 3, and the photographing device 60 is assembled to the frame 50 and can rotate with the rotating shaft 130 relative to the base 110. In other embodiments, the pivot structure 100 can be applied to other types of devices, and the present invention does not limit this.

Fig. 4 shows the pivot structure of Fig. 1 applied to a photographing device. 2 and 4, an inner wall 110a1 of the shaft hole 110a of the seat body 110 has a plurality of positioning recesses 112. The torsion element 120 includes a torque providing portion 122 and a plurality of positioning protrusions 124. The torsion providing portion 122 surrounds a central axis A of the shaft hole 110a of the seat body 110 to form a through hole 122a, and the torsion providing portion 122 has a cutout 122b adjacent to the through hole 122a. The positioning convex portions 124 are connected to the torsion force providing portion 122 and respectively extend into the positioning concave portions 112 of the seat body 110 along the radial direction of the shaft hole 110 a to correspond to the positioning concave portions 112 respectively. In addition, as shown in FIG. 4, the central axis A of the shaft hole 110a is perpendicular to a virtual plane P, a virtual straight line L on the virtual plane P passes through the orthographic projection of the fracture 122b on the virtual plane P and passes through the central axis A, and the torsion force The orthographic projection of the positioning protrusions 124 of the element 120 on the virtual plane P is symmetrical to the virtual straight line L.

As described above, this embodiment uses the mutual cooperation of the positioning convex portion 124 of the torsion element 120 and the positioning concave portion 112 of the base 110 to fix the torsion element 120, so there is no need to screw the torsion element inside the pivot structure 100. The assembly of 120 can save the configuration space of the torsion element 120. In addition, the multiple positioning protrusions 124 of the torsion element 120 are distributed in a symmetrical manner as described above, so that the force of the torsion element 120 is uniform, so that the strain generated by the torsion element 120 due to the torque is evenly distributed by the positioning protrusions 124 Absorb, and make it more stable in structure.

The hardness of the torsion element 120 of this embodiment is, for example, greater than the hardness of the base 110. Thereby, the torsion element 120 can be easily assembled to the base 110 without wearing the positioning protrusion 124. In addition, there is a gap G between the torsion providing portion 122 and the inner wall 110a1 of the shaft hole 110a of the seat body 110 to prevent the torsion providing portion 122 from contacting the inner wall 110a1 to generate unexpected additional torque.

In this embodiment, the number of the positioning protrusions 124 of the torsion element 120 is three, and the virtual straight line L passes through the orthographic projection of one of the positioning protrusions 124 on the virtual plane P. The number of these positioning recesses 112 of the seat body 110 is correspondingly three. In other embodiments, the positioning convex portions 124 and the positioning concave portions 112 may be other appropriate numbers, which are not limited in the present invention. The following illustrates this with a diagram.

Fig. 5 shows some components of the pivot structure of another embodiment of the present invention. The number of the positioning protrusions 124 and the positioning recesses 112 shown in FIG. 5 are both four, and their orthographic projection on the virtual plane P is symmetrical to the virtual straight line L. Fig. 6 shows some components of the pivot structure of another embodiment of the present invention. The number of the positioning convex portions 124 and the positioning concave portions 112 shown in FIG. 6 are both five, and their orthographic projection on the virtual plane P is symmetrical to the virtual straight line L.

Please refer to FIG. 2, the torsion element 120 of this embodiment further includes an extension portion 126 extending from the torque providing portion 122 in a direction parallel to the central axis A, and the positioning protrusions 124 are formed on the extension portion 126. In other words, these positioning protrusions 124 are not directly formed on the torque providing portion 122. Thereby, in the direction parallel to the central axis A, the torque providing portion 122 and the positioning convex portion 124 are respectively located at different positions, which can prevent the arrangement of the positioning convex portions 124 from adversely affecting the torque providing effect of the torque providing portion 122.

In summary, the present invention utilizes the mutual cooperation of the positioning convex part of the torsion element and the positioning concave part of the base to fix the torsion element, so there is no need to assemble the torsion element inside the pivot structure by means of screw locking, but can be Save the configuration space of the torsion element. In addition, the multiple positioning protrusions of the torsion element are distributed in a symmetrical manner, so that the force of the torsion element is uniform and the structure is relatively stable.

50: frame 60: Photography installation 100: pivot structure 110: Seat 110a: shaft hole 110a1: inner wall 112: positioning recess 120: Torque element 122: Torque Supply Department 122a: Through hole 122b: Fracture 124: positioning convex 126: Extension 130: shaft A: Central axis G: gap P: virtual plane L: Virtual straight line

Figure 1 is a perspective view of the pivot structure of an embodiment of the invention. Fig. 2 is an exploded view of the pivot structure of Fig. 1. Fig. 3 shows some components of the pivot structure of Fig. 1. Fig. 4 shows the pivot structure of Fig. 1 applied to a photographing device. Fig. 5 shows some components of the pivot structure of another embodiment of the present invention. Fig. 6 shows some components of the pivot structure of another embodiment of the present invention.

110: Seat

110a: shaft hole

110a1: inner wall

112: positioning recess

122: Torque Supply Department

122a: Through hole

122b: Fracture

124: positioning convex

126: Extension

A: Central axis

G: gap

P: virtual plane

L: Virtual straight line

Claims (8)

A pivot structure including: A base with a shaft hole, wherein an inner wall of the shaft hole has a plurality of positioning recesses; A torsion element is disposed in the shaft hole and includes a torsion providing portion and a plurality of positioning protrusions, wherein the torsion providing portion surrounds a central axis of the shaft hole to form a through hole, and the torsion providing portion is adjacent to the through hole The positioning convex portions are connected to the torque providing portion and respectively correspond to the positioning concave portions, wherein the central axis is perpendicular to a virtual plane, and a virtual straight line on the virtual plane passes through the fracture on the virtual plane And passing through the central axis, the orthographic projections of the positioning protrusions on the virtual plane are symmetrical to the virtual straight line; and A rotating shaft passes through the through hole. The pivot structure according to claim 1, wherein the hardness of the torsion element is greater than the hardness of the seat body. The pivot structure according to claim 1, wherein there is a gap between the torsion force providing portion and the inner wall of the shaft hole. The pivot structure according to claim 1, wherein the number of the positioning convex portions is three, and the number of the positioning concave portions is three. The pivot structure according to claim 1, wherein the virtual straight line passes through an orthographic projection of one of the positioning protrusions on the virtual plane. The pivot structure according to claim 1, wherein in a direction parallel to the central axis, the torsion force providing portion and the at least one positioning convex portion are respectively located at different positions. The pivot structure according to claim 1, wherein the torsion element includes an extension part extending from the torsion force providing part in a direction parallel to the central axis, and the positioning protrusions are formed on the extension part. The pivot structure according to claim 1, wherein each positioning convex portion extends into the corresponding positioning concave portion along a radial direction of the shaft hole.

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