TWI842440B - Shifter handle - Google Patents

Abstract

The gearshift grip of the present invention comprises a housing, a handle sleeve disposed on the housing, and a wire reel. The housing has a main body and a guide portion extending from the main body, the main body has a housing chamber and a wire passage opening connected to the housing chamber, and the guide portion has a wire passage hole connected to the housing chamber. The wire reel is sleeved on the handle sleeve with a disc hole and has a guide ring wall, the guide ring wall has an inner ring surface, a circular arc segment, and a curved arc segment adjacent to the circular arc segment, the circular arc segment has a first end, the curved arc segment has a second end, the first and second ends form a wire passage opening, and a wire guide groove is formed between the inner ring surface and the disc hole. Thereby, a wire is passed through the wire passage opening and guided by the wire guide groove to pass through the wire passage opening and pass out from the wire passage hole, and the other end of the wire is fixed at the wire passage opening.

Description

Shifter handle

The present invention relates to a bicycle shifter handle, and in particular to a shifter handle that is very easy to thread wires.

The gear shifter handles currently on the market can be divided into two types: rotating type or lever type. Users can control the gear shifting of the bicycle by turning the handle or turning the lever to roll or loosen the wires inserted in the gear shifter handle. Since the internal structure of the conventional gear shifter handle is relatively complicated, the process of inserting the wires is relatively complicated, making the process of inserting or replacing the wires very inconvenient. Therefore, there is still room for improvement in the conventional gear shifter handle.

In view of this, the main purpose of the present invention is to provide a gear shifter handle with a simple structure and convenient for wire threading.

In order to achieve the above-mentioned main purpose, the transmission grip of the present invention includes a housing, a handle sleeve, a wire drum and a rotating housing; the housing has a body and a guide portion extending from the body laterally, the body has a front side, a back side, a body shaft hole penetrating the front side and the back side, a housing chamber recessed from the back side to the front side, and a wire material passing port extending from the front side to the back side and communicating with the housing chamber, the guide portion has a wire material passing hole communicating with the housing chamber; the handle sleeve has a sleeve shaft hole, a front end portion of the handle sleeve is connected to the body, so that the sleeve shaft hole is communicated with the body shaft hole; the wire drum has a drum hole, and the wire drum is rotatably sleeved on the housing chamber through the drum hole. The handle sleeve, the wire drum includes a front of the wire drum and a guide ring wall, the front of the wire drum faces a bottom of the housing chamber, the guide ring wall protrudes from the front of the wire drum to the bottom of the housing chamber, the guide ring wall has an inner ring surface, an outer ring surface, an arc segment, and a curved arc segment adjacent to the arc segment, the arc segment has a first end, the curved arc segment has a second end opposite to the first end and closer to a center of the disk hole than the first end, the first end and the second end together form a wire passing port corresponding to the wire passing hole, and a wire guide groove connected to the wire passing port is formed between the guide ring wall and the handle sleeve; the rotating shell can drive the wire drum to be sleeved on the handle sleeve.

With the above technical features, when assembled with a wire, a free end of the wire is inserted into the wire passage of the housing, so that the wire can be guided by the wire guide groove to pass through the wire passage and pass out from the wire passage hole, and a fixed end of the wire opposite to the free end is blocked at the wire passage. In other words, the internal structure of the shifter grip of the present invention is conducive to the insertion of the wire, and the shifter grip of the present invention can smoothly roll or release the wire when switching gears, so the shifter grip of the present invention can be quickly installed with the wire and is also very easy to operate.

Preferably, the front end of the handle sleeve is exposed from the coil hole of the coil to form a wire abutment portion. When the free end of the wire is tightened by external force, the wire abuts against the wire abutment portion. The wire guide groove is defined between the wire abutment portion of the handle sleeve and the inner annular surface of the guide ring wall.

Preferably, the first end of the wire drum has a baffle, and the second end of the wire drum has a cover connected to the baffle, and the baffle and the cover together form the wire passage. In this way, the free end of the wire is guided by the baffle and is easier to pass through the wire passage.

Preferably, when the free end of the wire passes through the wire passage opening, the free end of the wire abuts against the outer ring surface of the wire drum.

Preferably, a guide piece is provided in the wire passage hole of the guide portion, and the guide piece and the inner wall of the wire passage hole together define a guide ring track.

Preferably, the free end of the wire passes through the wire passage opening of the casing and is accommodated in the wire guide groove. The free end of the wire is guided by the wire guide groove to pass through the wire passage opening and is guided by the guide ring track of the casing to pass out from the end of the wire passage hole of the casing.

Preferably, the main body axial hole of the housing has a large diameter portion and a small diameter portion connected to the large diameter portion, the large diameter portion has a first recess and a second recess adjacent to the first recess, a convex portion is formed between the first and second recesses, and the convex portion has an inner convex edge; the small diameter portion has a third recess adjacent to the first recess, and the third recess has a convex edge; the front end portion of the handle sleeve has a first abutment portion and an adjacent A second abutment portion and a third abutment portion are provided on the first abutment portion, the first abutment portion has an outer convex edge, and the second abutment portion has an embedded clamping portion; when the front end portion of the handle sleeve is inserted into the main body axial hole of the housing, the outer convex edge of the first abutment portion abuts against the first recess, the second abutment portion abuts against the inner convex edge, and the embedded clamping portion is embedded in the second recess, and the third abutment portion abuts against the convex edge of the third recess. In this way, the handle sleeve can be stably inserted into the main body axial hole of the housing.

Preferably, the second recess has a positioning notch, the second abutting portion has a positioning rib connected to the embedded portion, and the positioning rib is embedded in the positioning notch. In this way, the handle sleeve can be more securely inserted into the main body shaft hole of the housing.

The detailed structure, features, assembly or use of the shifter grip provided by the present invention will be described in the detailed description of the implementation method in the following. However, those with ordinary knowledge in this field should understand that such detailed descriptions and specific embodiments listed for implementing the present invention are only used to illustrate the present invention and are not used to limit the scope of the patent application of the present invention.

1: Shifter handle

10: Shell

11: Body

12: Front

13: Back

14: Body shaft hole

141: Main Path

142: First concave portion

143: Second concave portion

143a: Positioning gap

144: convex part

144a: Inner rim

145: Small path

146: The third concave part

146a: flange

147: screw hole

15: Shell chamber

151: Tooth groove

16: Wire entry port

17: Guidance Department

171: Wire outlet hole

18: Guide piece

19: Adjustment screw

20: Handle the tube

21: Casing shaft hole

22: Front end

221: First card landing

221a: Outer convex edge

222: Second card stop

222a: Card embedding part

222b: Positioning ribs

223: Third card end

224: Wire support part

23: First annular flange

24:Blocking edge

25: Second annular flange

26: Third annular flange

30: Connector

31: Ring hole

32: Screw hole

40: Wire drum

41:Disc hole

42: Front of the reel

43: Guidance Ring Wall

44: Inner ring surface

45: Outer ring surface

46: Arc segment

461: First end

462:Block

47: curved arc segment

471: Second end

472: Covering part

48: Wire guide groove

49: Wire passage

50: Back of the reel

51: Card block

52: First insertion part

54: Ribs

55: Shrapnel storage slot

60: Shell turning

61: Rotating housing shaft hole

62: Ring-shaped receiving portion

63: Push block

64: Second insertion part

65: Rotating shaft

66: Longitudinal ribs

70: Grip cover

71: Grip sleeve shaft hole

72: Longitudinal notch

80:Fixing screw

81: Spring

83: Shrapnel

90: Wire

91: Body

92: Free end

93:Fixed end

R:Guide ring track

The following is a further description of the shifter handle provided by the present invention with reference to the embodiments and drawings, wherein: FIG1 is a three-dimensional assembly diagram of the shifter handle of the present invention; FIG2 is an axial cross-sectional view of the shifter handle of the present invention; FIG3 is a three-dimensional exploded view of the shifter handle of the present invention; FIG4 is a front view of the housing provided by the shifter handle of the present invention; FIG5 is a front view of the housing provided by the shifter handle of the present invention; FIG. 6 is a three-dimensional view of the handlebar sleeve provided by the shifter grip of the present invention; FIG. 7 is a cross-sectional view along the 7-7 section line of FIG. 2, showing the state of the handlebar sleeve being fixed to the main body shaft hole of the sleeve shell; FIG. 8 is a three-dimensional combination view of the wire drum, spring sheet and spring provided by the shifter grip of the present invention; FIG. 9 is a cross-sectional view along the 9-9 section line of FIG. 2, showing the state of the wire drum being set on the handlebar sleeve with the disk hole; FIG. 10 is A three-dimensional assembly diagram of the reel, spring and spring provided by the shifter handle of the present invention from another viewing angle; FIG. 11 is a cross-sectional view taken along line 11-11 of FIG. 2, showing the state in which the housing and the back of the reel are interlocked with each other; FIG. 12 is a three-dimensional assembly diagram of the shifter handle of the present invention with wires inserted therethrough; FIG. 13 is an axial cross-sectional view of the shifter handle of the present invention with wires inserted therethrough; FIG. 14 is a cross-sectional view taken along line 14-14 of FIG. 13; FIG15 is a cross-sectional view along the 15-15 line of FIG13, showing that the wire is inserted through the wire insertion hole and is against the inner ring surface; FIG16 is similar to FIG14, showing the wire being tightened; FIG17 is similar to FIG14, showing the wire being relaxed; and FIG18 is a cross-sectional view of the guide portion of the shifter grip of the present invention, used to illustrate the guide ring track.

First of all, it should be noted that the technical features provided by the present invention are not limited to the specific structure, use and application described in the implementation method. The terms used in the description are all exemplary descriptive terms that can be understood by ordinary knowledgeable people in the relevant technical fields. The directional descriptive terms such as "front, top, bottom, back, left, right, top, bottom, inside, and outside" mentioned in this manual are only exemplary descriptive terms based on the normal use direction, and are not intended to limit the scope of the claims.

Please refer to Figures 1 to 3. The gearshift handle 1 of the present invention includes a housing 10, a hand sleeve 20, a coupling ring 30, a reel 40, a rotating housing 60 and a grip cover 70.

Please refer to FIG. 4 and FIG. 5 , the casing 10 has a body 11 and a guide portion 17 extending forward from the body 11. The body 11 has a front surface 12, a back surface 13, a body axial hole 14 penetrating the front and back surfaces 12 and 13, a casing chamber 15 recessed from the back surface 13 toward the front surface 12, and a wire passage 16 extending from the front surface 12 toward the back surface 13 and communicating with the casing chamber 15. The body axial hole 14 has a large diameter portion 141 and a small diameter portion 145 communicating with the large diameter portion 141, wherein the inner wall surface of the large diameter portion 141 is provided with three first recesses 142 and two second recesses 143 disposed between the first recesses 142, and each second recess 143 has a positioning notch 143a. The first and second recesses 142 and 143 are arranged in a ring shape relative to the body shaft hole 14, and a convex portion 144 is formed between each of the first and second recesses 142 and 143. The bottom surface of each convex portion 144 is provided with an inner convex edge 144a protruding toward the center of the body shaft hole 14. The small diameter portion 145 has a third recess 146. The bottom surface of the third recess 146 has a convex edge 146a protruding toward the center of the body shaft hole 14, and the inner wall surface of the small diameter portion 145 also has a screw hole 147 that passes through from top to bottom. The wall surface of the housing chamber 15 is provided with a plurality of tooth grooves 151 (seven in this embodiment, but not limited to seven). The guide portion 17 has a wire through hole 171 connected to the housing chamber 15. A guide member 18 is disposed in the wire through hole 171, and the guide member 18 and the inner wall of the wire through hole 171 jointly define a guide ring track R (as shown in Figures 3 and 18). In some cases, the guide portion 17 and the guide member 18 can also be made in an integrally formed manner, and an adjustment screw 19 is locked at one end of the guide portion 17 (as shown in Figure 1).

Please refer to Figure 6. The handle sleeve 20 has a sleeve shaft hole 21 and a front end portion 22. The front end portion 22 has three first abutting portions 221, two second abutting portions 222 and one third abutting portion 223. The first abutting portions 221, the second abutting portions 222 and the third abutting portions 223 are arranged in a ring shape relative to the sleeve shaft hole 21. Each first abutting portion 221 is provided with an outer flange 221a protruding in the opposite direction of the center of the sleeve shaft hole 21, and each second abutting portion 222 has an embedded portion 222a and a positioning rib 222b connected to the embedded portion 222a. The front end of the handle tube 20 has two first annular flanges 23, and the outer periphery of the rear end of the handle tube 20 is provided with two spaced baffles 24. The handle tube 20 also has a second annular flange 25 adjacent to the first annular flanges 23, and three third annular flanges 26 located at the rear end. In addition, please continue to refer to FIG. 7. The front end 22 of the handle tube 20 is fixedly disposed in the main body shaft hole 14 of the housing 10. On the one hand, each of the first annular flanges 25 is provided at a fixed position. The outer flange 221a of the first abutting portion 221 abuts against the bottom surface of each first recess 142, and the third abutting portion 223 abuts against the flange 146a of the third recess 146. On the other hand, each second abutting portion 222 abuts against each inner flange 144a, and each embedded portion 222a is embedded in each second recess 143, and the positioning rib 222b is embedded in the positioning notch 143a, so as to complete the positioning of the handle tube 20.

Please refer to Figures 2 and 3. The connecting ring 30 is an integrally formed ring. The connecting ring 30 has a ring hole 31 that passes through the front and rear and a screw hole 32 that passes through the top and bottom. As shown in Figure 2, the connecting ring 30 is arranged in the body shaft hole 14 of the casing 10, and then a fixing screw 80 is used to pass through the screw hole 147 of the casing 10 and the screw hole 32 of the connecting ring 30, and then the handle tube 20 and the connecting ring 30 are stably locked in the body shaft hole 14 of the casing 10, so that the sleeve shaft hole 21 and the body shaft hole 14 are connected to each other.

Referring to FIGS. 8 to 11 , the wire drum 40 has a disk hole 41, a disk front face 42, a guide ring wall 43 protruding from the disk front face 42, and a disk back face 50 opposite to the disk front face 42. The guide ring wall 43 has an inner ring surface 44, an outer ring surface 45, an arc segment 46, and a curved segment 47 adjacent to the arc segment 46. The arc segment 46 is a true arc relative to the center of the disk hole 41, and the arc segment 46 has a first end 461, and the first end 461 has a stopper 462; the curved segment 47 has a second end 471, and the second end 471 is closer to the center of the disk hole 41 than the first end 461, and the second end 471 has a stopper 462 connected to the stopper 462. The cover portion 472, the blocking portion 462 and the covering portion 472 together form a wire passage 49; as shown in FIG10, the back side 50 of the wire drum has three clamping blocks 51 arranged in a ring shape relative to the disk hole 41, one of the clamping blocks 51 has a first insertion portion 52 for providing one end of a spring 81 for insertion (as shown in FIG11), and the back side 50 of the wire drum has a rib 54, and a spring receiving groove 55 is formed between the rib 54 and another clamping block 51 for placing a spring 83. In addition, as shown in FIG9 , the wire drum 40 is sleeved on the front end 22 of the handle sleeve 20 with the disk hole 41, and the front end 22 of the handle sleeve 20 is exposed from the disk hole 41 of the wire drum 40 to form a wire abutment portion 224 as shown in FIG2 , and a wire guide groove 48 is formed between the wire abutment portion 224 and the inner ring surface 44 of the guide ring wall 43. As shown in FIG2 , the first annular flanges 23 of the handle sleeve 20 abut against the inner wall surface of the disk hole 41 to prevent the wire drum 40 from sliding forward and backward. At this time, the spring sheet 83 fixed to the back side 50 of the wire drum will be stuck in one of the tooth grooves 151 of the housing 10 (as shown in FIG11 ).

Please refer to Figure 3. The rotating shell 60 has a rotating shell shaft hole 61, an annular accommodating portion 62 and a rotating shaft portion 65 connected to the annular accommodating portion 62, wherein a bottom surface of the annular accommodating portion 62 has three push blocks 63, and one of the push blocks 63 has a second insertion portion 64 for providing the other end of the spring 81 for insertion (as shown in Figure 11); the outer peripheral surface of the rotating shaft portion 65 has a plurality of longitudinal ribs 66 (the number is not limited), and the longitudinal ribs 66 are arranged in an annular shape with equal intervals relative to the axial direction of the rotating shell 60. In addition, as shown in FIG. 2 , the housing 60 is sleeved onto the handle glove 20 from the rear end of the handle glove 20 through the housing shaft hole 61. At this time, the handle glove 20 abuts against the inner wall surface of the housing shaft hole 61 with the second annular flange 25 on the one hand, and abuts against the rear end of the shaft portion 65 of the housing 60 with the baffle 24 on the other hand, thereby preventing the housing 60 from being separated from the handle glove 20. As shown in Figure 11, the annular receiving portion 62 of the rotating shell 60 is connected to the back side 50 of the wire drum 40, and the two ends of the spring 81 push the push block 63 of the rotating shell 60 and the clamping block 51 of the wire drum 40 respectively, so that the two are clamped against each other, so that the rotating shell 60 can drive the wire drum 40 to rotate relative to the handle sleeve 20.

Please refer to Figures 2 and 3. The grip cover 70 has a grip cover shaft hole 71. The inner wall surface of the grip cover shaft hole 71 has a plurality of longitudinal notches 72 (the number is unlimited). The grip cover 70 is sleeved on the rotating shell 60 through the grip cover shaft hole 71, and each longitudinal notch 72 is mutually engaged and fixed with the longitudinal ribs 66 of the rotating shell 60, so that the grip cover 70 can drive the rotating shell 60 to move synchronously when subjected to external force.

The above are the structural features of the gearshift handle 1 of the present invention. The following will further introduce the usage of the gearshift handle 1 of the present invention and the effects produced.

Please refer to Figures 12 to 15. In actual application, the shifter handle 1 of the present invention will be used in conjunction with a wire 90 (such as a shifting cable). The wire 90 has a body 91, a free end 92 connected to the body 91, and a fixed end 93 connected to the body 91 and opposite to the free end 92. First, the free end 92 of the wire 90 is inserted into the wire passage 16 of the casing 10, so that the body 91 of the wire 90 abuts against the inner annular surface 44 of the wire drum 40 and is accommodated in the wire guide groove 48. At this time, the free end 92 of the wire 90 is guided by the stopper 462, so it is easier to pass through the wire passage 49 and abut against the outer annular surface 45 of the guide ring wall 43. Then, the free end 92 of the wire 90 is guided by the guide ring track R of the casing 10 (as shown in Figure 18), and then passes through the end of the wire passage hole 171 of the casing 10, and the fixed end 93 of the wire 90 is stopped at the wire passage 16. In this way, the wire 90 can be inserted into the shifter grip 1 of the present invention, and the installation process is very easy.

When the shifter handle 1 of the present invention is shifted to a high-speed gear, an external force is applied to rotate the grip cover 70 counterclockwise. At this time, the grip cover 70 together with the rotating shell 60 drives the cable drum 40 to rotate counterclockwise relative to the handle sleeve 20, so that the free end 92 of the wire 90 is tightened by a rear shifter (not shown in the figure). At this time, the body 91 of the wire 90 is attached to the wire abutment portion 224 of the handle sleeve 20 (as shown in Figure 16), so as to achieve the effect of shifting to a high-speed gear. When the speed changer handle 1 of the present invention is shifted to a low gear, an external force is applied to rotate the grip cover 70 clockwise. At this time, the grip cover 70 together with the rotating shell 60 drives the reel 40 to rotate clockwise relative to the handle sleeve 20, so that the free end 92 of the wire 90 is rolled, so that the body 91 of the wire 90 will abut against the outer annular surface 45 of the guide ring wall 43 of the reel 40 (as shown in FIG. 17 ), so as to achieve the effect of shifting to a low gear. It should be mentioned that when the grip cover 70 is rotated by applying force, the spring sheet 83 fixed to the reel 40 will be sequentially clamped in each tooth groove 151 of the shell 10, thereby achieving the speed change of each gear of the speed changer handle 1 of the present invention. By tightening the adjustment screw 19 locked in the guide portion 17 of the housing 10, the tightness of the free end portion 92 of the wire 90 can be adjusted.

In summary, when the shifter handle 1 of the present invention is used with the wire 90, the free end 92 of the wire 90 is allowed to pass through the wire passage 16 of the housing 10 and enter the housing chamber 15, so that the wire 90 can be guided by the wire guide groove 48 to pass through the wire passage 49 and pass out from the wire passage hole 171, while the fixed end 93 of the wire 90 is blocked at the wire passage 16. In other words, the internal structure of the shifter handle 1 of the present invention is conducive to the insertion of the wire 90, and the wire 90 can be rolled and released smoothly when switching gears. Therefore, the shifter handle 1 of the present invention can be quickly installed with the wire 90 and is also very easy to operate.

1: Shifter handle

10: Shell

11: Body

12: Front

16: Wire entry port

17: Guidance Department

19: Adjustment screw

30: Connector

70: Grip cover

Claims (8)

A transmission handle comprises: A housing having a body and a guide portion extending laterally from the body, the body having a front side, a back side, a body shaft hole penetrating the front side and the back side, a housing chamber recessed from the back side to the front side, and a wire passage opening extending from the front side to the back side and connected to the housing chamber, the guide portion having a wire passage hole connected to the housing chamber; A handle sleeve having a sleeve shaft hole, a front end portion of the handle sleeve being connected to the body so that the sleeve shaft hole is connected to the body shaft hole; A wire drum having a drum hole, the wire drum being rotatably mounted on the handle sleeve through the drum hole, the wire drum comprising: A front side of the wire drum facing a bottom of the housing chamber; and A guide ring wall protruding from the front of the wire drum toward the bottom of the housing chamber, the guide ring wall having an inner ring surface, an outer ring surface, an arc segment, and a curved arc segment adjacent to the arc segment, the arc segment having a first end, the curved arc segment having a second end opposite to the first end and closer to a center of the disk hole than the first end, the first end and the second end together forming a wire passage opening corresponding to the wire passage hole, and a wire guide groove connected to the wire passage opening is formed between the guide ring wall and the handle sleeve; and a rotating shell, which is sleeved on the handle sleeve so as to drive the wire drum; Thus, a free end of a wire passes through the wire passage opening of the casing, and can be guided by the wire guide groove to pass through the wire passage opening and out of the wire exit hole, while a fixed end of the wire opposite to the free end is stopped at the wire passage opening. A gear shift grip as described in claim 1, wherein the front end of the handle sleeve is exposed from the reel hole of the wire reel to form a wire abutment portion, and when the free end of the wire is tightened by external force, the wire abuts against the wire abutment portion; the wire guide groove is defined between the wire abutment portion of the handle sleeve and the inner annular surface of the guide ring wall. A shifter grip as described in claim 1, wherein the first end of the cable drum has a baffle, and the second end of the cable drum has a covering portion connected to the baffle, and the baffle and the covering portion together form the cable passage opening. A gear shift grip as described in claim 1, wherein when the free end of the wire passes through the wire passage opening, the free end of the wire abuts against the outer ring surface of the wire drum. A gear shift grip as described in claim 1, wherein a guide member is provided in the wire outlet hole of the guide portion, and the guide member and the inner wall of the wire outlet hole together define a guide ring track. A shifter grip as described in claim 5, wherein the free end of the wire is inserted into the wire passage port of the casing and accommodated in the wire guide groove, the free end of the wire is guided by the wire guide groove to pass through the wire passage port, and is guided by the guide ring rail of the casing to pass out from the end of the wire exit hole of the casing. As described in claim 1, the main body shaft hole of the housing has a large diameter portion and a small diameter portion connected to the large diameter portion, the large diameter portion has a first recess and a second recess adjacent to the first recess, a convex portion is formed between the first and second recesses, and the convex portion has an inner flange; the small diameter portion has a third recess adjacent to the first recess, and the third recess has a flange; the front end of the handle tube has a first clamping portion , and a second abutment portion and a third abutment portion adjacent to the first abutment portion, the first abutment portion having an outer convex edge, and the second abutment portion having an embedded clamping portion; when the front end portion of the handle sleeve is inserted into the main body axial hole of the shell, the outer convex edge of the first abutment portion abuts against the first recessed portion, the second abutment portion abuts against the inner convex edge, and the embedded clamping portion is embedded in the second recessed portion, and the third abutment portion abuts against the convex edge of the third recessed portion. In the transmission handle as described in claim 7, the second recess has a positioning notch, the second engaging portion has a positioning rib connected to the engaging portion, and the positioning rib is engaged in the positioning notch.

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