Universal joint structure of rearview mirror

Abstract

The utility model provides a universal connecting structure of a rearview mirror, which comprises the rearview mirror provided with a shell; the protruding part is arranged on the shell, the protruding part is provided with a round hole, and the round hole is connected with a concave curved surface on the inner side of the protruding part and a convex arc surface on the outer side of the protruding part; a spectacle frame; the bowl is connected to the spectacle frame, a concave cambered surface on the inner side of the bowl is matched with the convex cambered surface, and the bowl receives the raised part and can slide relative to the raised part; the surface of the outer side of the fixing piece is a convex curved surface, the convex curved surface is matched with the concave curved surface, and the fixing piece is arranged in the protruding part and slides relative to the protruding part, so that the rearview mirror rotates at multiple angles relative to the mirror bracket. And the fixing piece is matched with the bowl to clamp the bulge part, so that the shell is still on the mirror bracket.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rearview mirror field, especially to a kind of universal joint structure, so that rearview mirror can be combined with frame multi-angle rotation. BACKGROUND

[0002] There are many kinds of two-wheeled vehicles, such as bicycles, electric-assisted bicycles, electric bicycles and motorcycles. A user usually looks forward when riding the two-wheeled vehicle on the road. At the turning point, the user turns his head to observe the road conditions on both sides. As for the road conditions behind the two-wheeled vehicle, it often depends on one or more rearview mirrors to reflect the specific situation for the user to judge.

[0003] The two-wheeled vehicle has a frame, which is equipped with a handlebar for installing some accessories, such as brake levers, gear controllers, phone holders or lamps, etc. These accessories occupy the positions on both sides of the handlebar. If the rearview mirror is installed in the middle of the handlebar, the user will block the road conditions behind the two-wheeled vehicle, causing potential safety hazards.

[0004] To overcome this drawback, the present inventor has developed a "bicycle rearview mirror" and obtained a new patent right for TWM485844 in Taiwan. The patent includes a rearview mirror bracket, a mirror seat and a universal joint structure. One end of the rearview mirror bracket is equipped with the handlebar, and the other end is provided with a groove, which forms a first arc concave part. The outer surface of the mirror seat protrudes a ball part. The ball part together with the groove, plus a fastener and a clamping block, jointly constitute the joint structure. When the clamping block is placed in the groove, the fastener locks the clamping block, and a second arc concave part of the clamping block is close to the first arc concave part, which together clamps both sides of the ball part, so that the mirror seat is fixed to the rearview mirror bracket, supporting the rearview mirror to avoid the user and reflect the road conditions behind. UTILITY MODEL CONTENTS

[0005] In the spirit of continuous improvement, the main purpose of the utility model is to provide a new rearview mirror universal joint structure, which adopts a clamping mechanical structure and has the function of multi-angle reflection, providing more choices for the consumer market.

[0006] To achieve the above object, the utility model provides a rear -view mirror universal joint structure, include: a rear -view mirror, it has a casing, a hump portion is established in the casing, the hump portion has a round hole, the round hole links the concave surface of the hump portion inside and the convex arc surface of the hump portion outside, a mirror frame, a bowl is connected to the mirror frame, the concave arc surface of the bowl inside fits the convex arc surface, the bowl receives the hump portion and can slide each other, and a fixed part, the surface of its outside is a convex curve, the convex curve fits the concave curve, the fixed part is inserted into the hump portion and slides each other, make the rear -view mirror relative to the mirror frame multi -angle rotation. The fixed part cooperates the bowl and clamps the hump portion, makes the casing stationary in the mirror frame.

[0007] In a preferred embodiment, further comprising: a hole through the bowl and connected to the concave arc surface, a cylinder, the convex curve of the fixed part outside is raised, the cylinder passes through the round hole and extends outside the hump portion, the cylinder limits the amplitude of the fixed part relative to the hump portion swing, the cylinder is inserted into the hole, prevents the fixed part from rotating in the bowl, the cylinder does not interfere with the hump portion and the bowl rotates each other.

[0008] In a preferred embodiment, further comprising: a counterbore is sunk into one side of the fixed part, the counterbore forms a through hole to the cylinder, a fastener, from a head extends an external thread section, the head is inserted into the counterbore, the external thread section extends out of the bowl through the through hole and the hole, a nut, having an internal thread hole combined with the external thread section, the nut locks the fastener, so that the fixed part and the bowl clamp the hump portion.

[0009] The utility model adopts the mechanical structure of clamping type, has the function of multi -angle reflection, provides more choices for the consumer market.

[0010] In order to make the purpose, features and advantages of the utility model, easy to understand, now one or more preferred embodiments are listed, as follows in detail with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 To draw the exploded view of the preferred embodiment of the utility model universal joint structure.

[0012] Figure 2 To depict the specific structure diagram of the universal joint structure after assembly.

[0013] Figure 3 To show the internal structure diagram of the universal joint structure.

[0014] Figure 4 To show the action diagram of the universal joint structure.

[0015] Explanation of reference numerals in the attached drawings: Rearview mirror 10; Housing 11; Lens 12; Back side 13; Raised part 14; Round hole 15; Concave surface 16; Convex surface 17; Frame 20; Bowl 21; Concave surface 22; Hole 23; Connecting part 24; Connecting part 25; Fastener 30; Head 31; External thread section 32; Fixing part 33; Countersunk hole 34; Through hole 35; Convex surface 36; Cylinder 37; Nut 40; Internal thread hole 41; Anti-slip part 42; Arrows 43 and 44. Detailed Implementation

[0016] Next, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals denote the same or similar structures or units. It is to be understood that the described embodiments are merely examples of some aspects of the present invention, and not all embodiments. Other embodiments can be deduced based on the described examples, or modifications and variations may be made as needed, all of which fall within the scope of protection of the present invention.

[0017] In the following description, directional terms such as "up," "down," "left," "right," "front," "back," "inner," "outer," and "side" are used only for reference to the directions in the accompanying drawings. The use of directional terms is for the purpose of better and clearer description and understanding of this utility model, and does not imply that the described device or element must have a specific orientation, structure, or operation, and therefore should not be construed as a limitation on the technical content of this utility model.

[0018] Unless specifically and explicitly stated otherwise, in the following description, "installed," "connected," "attached," or "on" should be interpreted broadly, including, for example, fixed connection, detachable connection, integral connection, mechanical connection, direct connection, indirect connection, or connection between two components. Those skilled in the art will understand the specific meaning of these terms in the various embodiments and even in the context of this invention based on ordinary knowledge or experience.

[0019] Unless otherwise stated, in the following description, "multiple" means two or more.

[0020] like Figure 2 As shown in the preferred embodiment of the present invention, a rearview mirror 10 is combined with a mirror frame 20. Below the mirror frame 20 is a nut 40. An anti-slip portion 42 is composed of a plurality of continuously undulating ribs (unlabeled) and a plurality of grooves (unlabeled), forming the outer surface of the nut 40, allowing the nut 40 to be unscrewed by fingers without slipping.

[0021] like Figure 1 As shown, after unscrewing, the internal threaded hole 41 of the nut 40 disengages from a fastener 30 of the rearview mirror 10, and the mirror frame 20 is removed from the back 13 of the rearview mirror 10.

[0022] Next, a bowl 21 is attached to one end of the frame 20. The inner surface of the bowl 21 is a concave arc surface 22, such as a hemisphere. A hole 23 is bored through the bowl 21, and the hole 23 is connected to the center of the concave arc surface 22. A coupling member 24 is attached to the other end of the frame 20, and the side of the coupling member 24 extends a coupling portion 25. In this embodiment, the coupling portion 25 is a threaded stud that locks the end of a handle (not shown). In some embodiments, the coupling portion 25 is a tapered convex portion that fits a tapered hole plug attached to the end of the handle. For more information on the tapered convex portion and the tapered hole plug, please refer to Taiwan Utility Model Patent No. TWM485844, which is not described here.

[0023] Second, the rearview mirror 10 has a housing 11. A mirror 12 is fixed to the front surface of the housing 11 by inlaying or adhering (see Figure 2 The back surface 13 of the housing 11 protrudes a raised portion 14, and the raised portion 14 forms a circular hole 15.

[0024] As shown in Figure 3 , the outer surface of the raised portion 14 is a convex arc surface 17, and the convex arc surface 17 connects a concave curved surface 16 of the raised portion 14 via the circular hole 15. In this embodiment, the concave curved surface 16 is the inner surface of the raised portion 14, and both the concave curved surface 16 and the convex arc surface 17 are preferably hemispheres.

[0025] A fixing member 33 is inserted into the concave curved surface 16 of the raised portion 14. The outer surface of the fixing member 33 is a convex curved surface 36, such as a hemisphere. The convex curved surface 36 has the same radius as the concave curved surface 16, allowing the fixing member 33 and the raised portion 14 to slide relative to each other. A cylinder 37 protrudes from the outer surface of the fixing member 33, and the cylinder 37 is a square (see Figure 1 When the concave curved surface 16 receives the fixing member 33, the cylinder 37 extends out of the raised portion 14 via the circular hole 15. One diagonal distance of the cylinder 37 is less than the diameter of the circular hole 15, limiting the amplitude of the fixing member 33 relative to the raised portion 14.

[0026] In addition, a counterbore 34 is recessed into one side of the fixing member 33, and the counterbore 34 forms a through hole 35 with the cylinder 37. The inner surface of the counterbore 34 has multiple edges, such as six edges. The diameter of the through hole 35 is less than the diagonal distance of the counterbore 34.

[0027] The fastener 30 is a bolt having a head 31 with a side surface extending outwardly to an externally threaded section 32. The head 31 has a plurality of sides, for example, six sides. The externally threaded section 32 has a diameter less than the diagonal distance of the head 31.

[0028] When the fastener 30 is engaged with the retainer 33, the countersink 34 receives the head 31 and the externally threaded section 32 extends through the through hole 35 to partially extend outwardly of the barrel 37. Because the countersink 34 fits the head 31, the externally threaded section 32 is prevented from rotating relative to the barrel 37.

[0029] When the bowl 21 receives the protuberance 14, the radii of the convex arc 17 and the concave arc 22 are identical, allowing the protuberance 14 and the bowl 21 to slide relative to each other. The barrel 37 is inserted into the hole 23, which confines the outer surface of the barrel 37 with a square wall to prevent the retainer 33 from rotating relative to the bowl 21, and the barrel 37 does not interfere with the protuberance 14 and the bowl 21 from rotating relative to each other. At this time, the externally threaded section 32 extends through the through hole 35. The internally threaded hole 41 of the nut 40 locks the externally threaded section 32 extending outwardly of the bowl 21, and the nut 40 pulls the head 31 to press the retainer 33, which, in cooperation with the bowl 21, clamps the protuberance 14 to hold the housing 11 stationary relative to the frame 20.

[0030] As described above, the protuberance 14, in combination with the bowl 21 and the retainer 33, forms a universal joint structure. In the present embodiment, the fastener 30 and the nut 40 are used to achieve the universal joint structure. When the nut 40 is loosened, the fastener 30 no longer presses the retainer 33, and the protuberance 14 loses the clamping action of the retainer 33 and the bowl 21, so that the housing 11 swings downwardly in the direction of an arrow 43 to adjust the reflecting angle of the mirror 12 of the rearview mirror 10 to observe the change of the road condition behind.

[0031] As shown in FIG. 4, the housing 11 swings upwardly in the direction of an arrow 44 to adjust the reflecting angle of the mirror 12 of the rearview mirror 10 to observe the change of the road condition behind. After the adjustment is confirmed, the nut 40 is tightened to maintain the rearview mirror 10 at a predetermined angle relative to the frame 20. Figure 4

[0032] In use, the joint 25 is engaged with a handle (not shown) of a bicycle, and the rearview mirror 10 is mounted on the bicycle.

[0033] ​Those skilled in the art can understand and make changes to the above embodiments without departing from the broad concept of the present application. Therefore, the present application is not limited to the specific embodiments disclosed in the specification, and any modifications made in accordance with the spirit and technical scope of the present application should be covered and protected by the scope of the present application.

Claims

1. A universal joint structure for a rearview mirror, characterized in that, include: A rearview mirror (10) having a housing (11); A raised portion (14) is provided in the housing (11), the raised portion (14) has a circular hole (15), the circular hole (15) connects a concave curved surface (16) on the inner side of the raised portion (14) and a convex arc surface (17) on the outer side of the raised portion (14); A frame (20); A bowl (21) connected to the frame (20), a concave arc surface (22) on the inner side of the bowl (21) fitting the convex arc surface (17), the bowl (21) receiving the raised portion (14) and being able to slide against it; and A fastener (33) has a convex curved surface (36) on its outer side, which fits the concave curved surface (16). The fastener (33) is inserted into the raised portion (14) and slides against it. The fastener (33) cooperates with the bowl (21) to clamp the raised portion (14), so that the housing (11) remains stationary on the frame (20).

2. The universal joint structure for rearview mirrors as described in claim 1, characterized in that, Also includes: A hole (23) passes through the bowl (21) and connects to the concave arc surface (22); A cylinder (37) protrudes from the outer convex surface (36) of the fixing member (33). The cylinder (37) passes through the circular hole (15) and extends out of the protrusion (14). The cylinder (37) restricts the swing of the fixing member (33) relative to the protrusion (14) by a certain amplitude. The cylinder (37) is inserted into the hole (23) to prevent the fixing member (33) from rotating in the bowl (21). The cylinder (37) does not interfere with the rotation of the protrusion (14) and the bowl (21) relative to each other.

3. The universal joint structure for rearview mirrors as described in claim 2, characterized in that, Also includes: A countersunk hole (34) is recessed into one side of the fastener (33), and the countersunk hole (34) forms a through hole (35) to the cylinder (37); A fastener (30) extends an externally threaded section (32) from a head (31) into the countersunk hole (34), and the externally threaded section (32) extends out of the bowl (21) through the through hole (35) and the hole (23); A nut (40) having an internal threaded hole (41) engages with the external threaded section (32), the nut (40) locks the fastener (30) so that the retainer (33) and the cup (21) clamp the protrusion (14).

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