TWM504766U - Steering handle stem for bike - Google Patents

Description

Bicycle steering scaffolding

This creation is related to bicycles, especially a bicycle steering frame.

The general bicycle is mainly controlled by the driver's handle. The driver's handle is usually fixed at the front end of the front frame. The rear end of the front frame is fixed at the top of the front fork riser. It is assembled with the front wheel, whereby the rider can control the steering of the front wheel through the cooperation between the driver's handle, the scaffolding and the front fork riser.

In order to respond to different needs of use (for example, when the handlebar is to be stored), the scaffolding and the front fork riser need to be designed to be relatively rotatable. In the prior art, for example, in the structure disclosed in the British Patent No. 247,528, when the quick release handle is in the locked state, the first and second members are separated by the positioning member and the positioning hole. The position is connected to prevent the first member from rotating relative to the second member. When the quick release handle is in the released state, the positioning member and the positioning hole are separated from each other, so that the first member can be rotated relative to the second member. In addition, in the case of the Republic of China No. M404815, when the user pulls the pull tab to force the slot of the pivot to the positioning groove of the riser, the support can pivot relative to the riser.

However, it can be clearly seen from the foregoing two patents that there are quite a lot of structural components, and in addition to increasing the complexity of the structure, it is bound to have a certain degree of influence on the assembly process and manufacturing cost.

The main purpose of the present invention is to provide a bicycle steering scaffold which is simple in structure and easy to assemble, and can reduce manufacturing costs.

In order to achieve the above object, the steering steering frame of the present invention comprises a base, a standpipe, and a handle. One end of the standpipe has a set of joints, two opposite first positioning recesses, and two opposite second positioning recesses, the sleeve portion is rotatably sleeved on the base, the two first positioning recesses and the The second positioning recesses are respectively disposed on the top edge of the socket portion and are staggered around the axial direction of the socket portion; the handle has a pulling portion and two opposite extending arms, and the two extending arms are The top edge of the extending portion extends laterally, and the ends of the two extending arms are pivotally disposed on the base and respectively have a positioning convex portion, and the positioning convex portion is selectively engaged with the first positioning of the vertical tube a recess or a second positioning recess of the standpipe. Thereby, when the positioning convex portion of the handle is engaged with the first positioning concave portion of the vertical tube, the vertical tube is positioned at a use position, and when the positioning convex portion of the handle is engaged with the second positioning of the vertical tube In the recessed portion, the standpipe is positioned in a storage position, and when the positioning protrusion of the handle is not engaged with the first and second positioning recesses of the standpipe, the standpipe can be in the use position and the storage position Rotate between.

In the embodiment of the present invention, the base has a shaft portion, and the shaft portion is sleeved by the socket portion of the standpipe. The steering frame further includes a safety component having an upper cover and an elastic member. The upper cover is movably disposed at a top end of the shaft portion of the base and is pivotally connected by the extending arm of the handle, the upper cover has a first stopping portion, and the handle further has a second stopping portion, the first cover The second stopping portion is disposed between the top edge of the pulling portion of the handle and between the extending arms of the handle, and the elastic member is disposed between the upper cover and the shaft portion of the base, so that the upper cover of the base The first stopping portion interferes with the second stopping portion of the handle by the elastic force of the elastic member to ensure that the handle is not accidentally pulled to increase the safety in use.

Referring first to Figures 1 and 2, the present steering scaffolding 10 includes a base 20, a standpipe 30, and a handle 40.

The base 20 is mainly sleeved and fixed to a front fork riser 12 and has a bearing portion 21 and a shaft portion 22. The bottom end of the shaft portion 22 is connected to the bearing portion 21, and the outer diameter of the shaft portion 22 It is smaller than the outer diameter of the bearing portion 21, and further, the top end of the shaft portion 22 has two opposite fixing holes 25.

One end of the standpipe 30 is clamped to a handlebar 14 and the other end of the standpipe 30 has a set of joints 31. The sleeve portion 31 of the standpipe 30 is sleeved on the shaft portion 22 of the base 20 by an adjusting washer 50. In order to avoid structural wear between the two, the adjusting washer 50 is screwed to the bottom edge of the socket portion 31 of the standpipe 30, and is abutted against the shaft portion 22 of the base 20 at the same time. The abutment portion 21 of the base 20 enables the standpipe 30 to pass through the adjustment washer 50 relative to the base 20 at a use position P1 (as shown in FIG. 1) and a storage position P2 (as shown in FIG. 8). Rotate between. In addition, as shown in FIG. 2, the standpipe 30 has two opposite first positioning recesses 32 and two opposite second positioning recesses 33. The two first positioning recesses 32 and the second second positioning recesses 33 are respectively disposed on the sleeve. The top edge of the joint portion 31 is staggered around the axial direction of the socket portion 31.

The handle 40 has a locating portion 41 and two opposite extending arms 42. The extending arms 42 extend laterally from the top edge of the urging portion 41. Moreover, the end of each extending arm 42 has a positioning convex portion 43 and a through portion. The pivot hole 44 of the convex portion 43 is positioned. The handle 40 is pivotally mounted on the top end of the shaft portion 22 of the base 20 by two pivots 28. The pivot shaft 28 passes through the pivot hole 44 of the extension arm 42 of the handle 40 and is screwed to the shaft portion 22 of the base 20. The fixing hole 25 allows the handle 40 to pivot up and down relative to the standpipe 30 between a locked position P3 (as shown in Figures 1 and 8) and a release position P4 (as shown in Figures 6 and 7). In addition, the handle 40 further has a second stopping portion 45. As shown in FIG. 2, the second stopping portion 45 is disposed at a top edge of the pulling portion 41 and interposed between the two extending arms 42.

In order to prevent the handle 40 from being accidentally pulled, as shown in Figures 2 to 5, the steering gear carrier 10 of the present invention further provides a safety component 60 having an upper cover 61 and an elastic member 62, and the upper cover 61 is covered The top end of the shaft portion 22 has two opposite long holes 63, and each long slot 63 is bored by the pivot 28 so that the upper cover 61 can move along the radial direction of the shaft portion 22 relative to the shaft portion 22. Further, the upper cover 61 The outer surface has a first stopping portion 64. As shown in FIG. 4, one end of the elastic member 62 is received in a spring groove 26 of the shaft portion 22 of the base and abuts against the end wall of the spring groove 26. The other end of the elastic member 62 abuts against the inner surface of the upper cover 61 for applying the force of the external cover to the outer cover 61.

When the handlebar 14 is to be used, the standpipe 30 is first rotated to the use position P1, and then the toggle portion 41 of the handle 40 is depressed. During the pressing of the handle 40, the second stop portion 45 of the handle 40 is squeezed. The first blocking portion 64 of the upper cover 61 moves the upper cover 61 away from the handle 40. When the first blocking portion 64 of the upper cover 61 and the second blocking portion 45 of the handle 40 are offset from each other, the handle 40 is The positioning position of the handle 40 can be locked in the first positioning recess 32 of the vertical tube 30 for positioning the standpipe 30 in the use position. In addition, the cover 61 of the base 20 is returned to the original position by the restoring force of the elastic member 62. At this time, the first stop portion 64 of the upper cover 61 and the second stop portion 45 of the handle 40 interfere with each other. To ensure that the handle 40 will not be accidentally pulled.

On the other hand, when the handlebar 14 is to be stored, the upper cover 61 is pushed first, so that the first stop portion 64 of the upper cover 61 and the second stop portion 45 of the handle 40 are offset from each other (as shown in FIG. 5). Then, the handle 40 is pulled up to the release position P4 as shown in FIG. 6. After the handle 40 is in the release position P4, the positioning protrusion 43 of the handle 40 is separated from the first positioning recess 32 of the standpipe 30, which At this time, the thrust of the upper cover 61 is released first, and the upper cover 61 is returned to the original position by the restoring force of the elastic member 62. Then, the standpipe 30 is rotated to the storage position P2 as shown in FIG. 7, and the standpipe 30 is placed in the storage. After the position P2, the handle 40 is pressed down. During the pressing of the handle 40, the second stopping portion 45 of the handle 40 presses the first stopping portion 64 of the upper cover 61 again, so that the upper cover 61 moves away from the handle 40. Once the first stop portion 64 of the base cover 61 and the second stop portion 45 of the handle 40 are offset from each other, the handle 40 can be smoothly pivoted to the lock position P3 as shown in Fig. 8, at this time, the handle The positioning protrusion 43 of the 40 is engaged in the second positioning recess 33 of the vertical tube 30 for positioning the standpipe 30 at the storage position P2. Moreover, the first stop portion 64 of the upper cover 61 and the second stop portion 45 of the handle 40 may again interfere with each other to ensure that the handle 40 is not accidentally pulled to increase the safety in use.

In summary, the steering scaffolding 10 of the present invention completes the vertical pipe 30 at the use position P1 by the cooperation between the first and second positioning recesses 32, 33 of the standpipe 30 and the positioning convex portion 43 of the handle 40. Compared with the conventional technology, the positioning of the storage position P2 has a simpler structural design, and the operation is also easier, and the manufacturing cost can be effectively reduced, thereby achieving the purpose of the creation.

10‧‧‧steering scaffolding
12‧‧‧Front fork riser
14‧‧‧ Drivers
20‧‧‧ Pedestal
21‧‧‧Affiliation
22‧‧‧Axis
25‧‧‧Fixed holes
26‧‧‧Spring slot
28‧‧‧ pivot
30‧‧‧ standpipe
31‧‧‧ Sockets
32‧‧‧First positioning recess
33‧‧‧Second positioning recess
P1‧‧‧Location
P2‧‧‧ Storage location
40‧‧‧handle
41‧‧‧Turning Department
42‧‧‧Extension arm
43‧‧‧ positioning convex
44‧‧‧ pivot hole
P3‧‧‧Lock position
P4‧‧‧ release position
45‧‧‧Second stop
50‧‧‧Adjust washer
60‧‧‧Safety components
61‧‧‧Upper cover
62‧‧‧Flexible parts
63‧‧‧Long slot
64‧‧‧First stop

The first figure is a perspective view of the creation, mainly showing the state in which the standpipe is in the use position and the handle is in the locked position. Figure 2 is an exploded perspective view of the creation. Figure 3 is a cross-sectional view taken along line 3-3 of Figure 1. Figure 4 is a cross-sectional view taken along line 4-4 of Figure 1. Fig. 5 is similar to Fig. 4, and mainly shows a state in which the first stopper of the upper cover and the second stopper of the handle are mutually displaced. Figure 6 is similar to Figure 1, which mainly shows the state in which the standpipe is in the use position and the handle is in the release position. Figure 7 is similar to Figure 6, which mainly shows the state in which the standpipe is in the use position and the handle is in the release position. Figure 8 is similar to Figure 7, which mainly shows the state in which the standpipe is in the locked position and the handle is in the locked position.

10‧‧‧steering scaffolding

20‧‧‧ Pedestal

21‧‧‧Affiliation

22‧‧‧Axis

28‧‧‧ pivot

30‧‧‧ standpipe

31‧‧‧ Sockets

32‧‧‧First positioning recess

33‧‧‧Second positioning recess

40‧‧‧handle

41‧‧‧Turning Department

42‧‧‧Extension arm

43‧‧‧ positioning convex

44‧‧‧ pivot hole

45‧‧‧Second stop

50‧‧‧Adjust washer

61‧‧‧Upper cover

63‧‧‧Long slot

64‧‧‧First stop

Claims (7)

A bicycle steering scaffold for connecting a driver's handle with a front fork riser, the steering scaffold comprising: a base for fixing to the front fork riser; a standpipe, the vertical One end of the tube is fixed to the handlebar, and the other end of the standpipe has a set of joints, two opposite first positioning recesses, and two opposite second positioning recesses, the sleeve portion is rotatably sleeved on the sleeve The two first positioning recesses and the two second positioning recesses are respectively disposed at a top edge of the socket portion and are staggered around the axial direction of the socket portion; and a handle has a toggle The extending arm of the second extending arm extends laterally from the top edge of the pulling portion, and the ends of the two extending arms are pivotally disposed on the base and respectively have a positioning convex portion, and the positioning convex portion can be The grounding is selectively engaged with the first positioning recess of the standpipe or the second positioning recess of the standpipe. The bicycle steering frame according to claim 1, wherein the base has a shaft portion, the shaft portion is sleeved by the sleeve portion of the vertical tube, and the top end of the shaft portion has two opposite fixing holes, the handle The end of the extension arm has a pivot hole extending through the positioning protrusion, and the extension arm of the handle pivots the shaft portion of the base by two pivots, each of the pivot shafts passing through the pivot hole of the extension arm of the handle and It is fixed in the fixing hole of the shaft portion of the base. The bicycle steering frame according to claim 2, further comprising a safety component having an upper cover and an elastic member, the upper cover being movably disposed at a top end of the shaft portion of the base and having a first The handle further has a second stopping portion disposed at a top edge of the pulling portion of the handle and interposed between the extending arms of the handle, and the elastic member is disposed on the upper cover Between the shaft portion of the base, the first stopping portion of the upper cover of the base interferes with the second stopping portion of the handle by the elastic force of the elastic member. The bicycle steering frame of claim 3, wherein the upper cover of the safety component has two opposite long slots, the long slot being bored by the pivot. The bicycle steering frame of claim 3, wherein the top end of the shaft portion of the base has a spring groove, one end of the elastic member abuts against the end wall of the spring groove, and the other end of the elastic member abuts The inner surface of the cover over the base. The bicycle steering frame according to claim 2, further comprising an adjusting washer, the base further having a bearing portion connected to the bottom end of the shaft portion and having an outer diameter larger than the shaft portion The adjusting washer is disposed at a bottom edge of the socket of the standpipe and rotatably sleeved on the shaft portion of the base and abuts against the bearing portion of the base. A bicycle steering scaffold according to claim 6, wherein the adjusting washer is screwed to the bottom edge of the socket of the standpipe.