TWI839192B - Clutch device for adjusting the damping in positive and negative directions of fitness car - Google Patents

Abstract

A clutch device for adjusting the damping in positive and negative directions of fitness car, which includes a handle, a connecting member having one end connected to the handle, a drive wheel assembly having a first wheel and a second wheel rotated coaxially, the connecting member is connected to the first wheel, a rotatable relay wheel, a rotatable rotating shaft, a first transmission member rotatably mounted on the rotating shaft and provided with a first clamp portion, a second transmission member rotatably mounted on the rotating axis and provided with a second clamp portion, a clutch coaxially mounted on the rotating shaft, located between the first and second transmission members, moves relative to the rotating shaft and provided with a first transmission portion for engaging with the first clamp portion and a second transmission portion for engaging with the second clamp portion, an annular belt successively surrounds the second wheel, the first transmission member, the relay wheel and the second transmission member, and a pivot unit drives the clutch to move.

Description

Clutch device for adjusting damping in forward and reverse directions of exercise bike

The present invention relates to a damping forward and reverse direction adjusting device, and in particular to a clutch device for adjusting the damping forward and reverse directions of a fitness bike.

The damping adjustment structure of a general fitness bike is mostly achieved by a rotating wheel driving a traction rope to pull the resistor on the resistance wheel, so that the resistor can be close to or away from the resistance wheel to form different resistances to the resistance wheel, so that the resistance output by the resistance wheel can be adjusted. However, the rotation direction of the resistance wheel is a single type rather than a two-way variable damping type. In addition, the fitness bike uses a pull rope with a one-way bearing, so that the resistance of the resistance wheel can be felt when the rope is pulled, and the resistance wheel will not be driven when the rope is released, and will not provide resistance. Therefore, it cannot be adjusted to an active or inactive type, and is not practical.

The present invention provides a clutch device for adjusting the damping of a fitness bike in the forward and reverse directions, and its main purpose is to control the forward or reverse rotation of the rotating shaft of the fitness bike.

To achieve the above-mentioned purpose, the clutch device for adjusting the damping in the forward and reverse directions of the fitness bike of the present invention comprises:

One hand handle;

a connecting member, one end of which is connected to the handle, and the connecting member is configured to be driven by the handle;

A driven wheel set, comprising a first wheel and a second wheel which can rotate coaxially, wherein the other end of the connecting member connected to the handle is connected to the first wheel;

a relay wheel, which is rotatable;

A rotating shaft, rotatable;

a first transmission member, which is rotatable relative to the rotation shaft and sleeved on the rotation shaft, and has a first engaging portion;

a second transmission member, which is rotatable relative to the rotation shaft and sleeved on the rotation shaft, and has a second engaging portion;

A clutch member is coaxially rotatable with the rotating shaft and sleeved on the rotating shaft. The clutch member is located between the first transmission member and the second transmission member. The clutch member can be displaced relative to the rotating shaft along the direction in which the rotating shaft extends. The clutch member has a first transmission part and a second transmission part. The first transmission part and the second transmission part are located at opposite ends of the clutch member. The first transmission part faces the first engagement part. The second transmission part faces the second engaging part, the first transmission part is engaged with the first engaging part, and the second transmission part is engaged with the second engaging part. When the first transmission part is engaged with the first engaging part, the second transmission part is spaced apart from the second engaging part by a distance. Conversely, when the second transmission part is engaged with the second engaging part, the first transmission part is spaced apart from the first engaging part by a distance.

a belt in a loop, the belt sequentially looping around the second wheel, the first transmission member, the intermediate wheel and the second transmission member; and

A pivot unit drives the clutch to move to control the first transmission part to engage with the first engaging part or the second transmission part to engage with the second engaging part.

As can be seen from the foregoing, the present invention mainly relies on the belt being circulated around the second wheel, the first transmission member, the intermediate wheel, and the second transmission member, so that when the belt rotates, it will synchronously drive the first transmission member and the second transmission member to rotate in the opposite direction. In addition, by pulling the handle, the first driving member is driven to deflect, and the pushing member on the fork portion is driven to push the clutch member to move, so as to control the first transmission member and the first clutch member. The first engaging part is engaged with the first transmission part or the second transmission part is engaged with the second engaging part. When the first transmission part is engaged with the first engaging part, the first transmission part drives the clutch part to rotate forward and drives the rotating shaft to rotate forward. On the contrary, when the second transmission part is engaged with the second engaging part, the second transmission part drives the clutch part to rotate reversely and drives the rotating shaft to rotate reversely, thereby achieving the purpose of controlling the rotating shaft of the fitness vehicle to rotate forward or reversely.

The present invention provides a clutch device for adjusting damping in forward and reverse directions of a fitness bike, which is installed on a frame A. Please refer to FIGS. 1-6 , and the clutch device for adjusting damping in forward and reverse directions of the fitness bike comprises:

One hand holds H;

a connecting member K, one end of which is connected to the handle H, and the connecting member K is driven by the handle H. In this embodiment, the connecting member K is a belt;

A driven wheel set 10 is pivotally mounted on the frame A. The driven wheel set 10 can rotate relative to the frame A. The driven wheel set 10 has a first wheel 11 and a second wheel 12. The first wheel 11 and the second wheel 12 are coaxially mounted on the frame A. The first wheel 11 and the second wheel 12 can rotate coaxially relative to the frame A. The first wheel 11 and the second wheel 12 are arranged along a longitudinal direction X. The connecting member K is connected to the other end of the handlebar H and is connected to the first wheel 11. In this embodiment, the first wheel 11 and the second wheel sleeve 12 are arranged on a first shaft 14. The first shaft 14 is rotatably mounted on the frame A and can rotate relative to the frame A. The first shaft 14 extends along the longitudinal direction X, and the first wheel 11 and the second wheel 12 are driven to rotate by the first shaft 14.

In a preferred embodiment, please refer to FIG. 2 , the first wheel 11 has a first assembly shaft 111, and the connecting member K is connected to one end of the first wheel 11 and has a sleeve K1, and the sleeve K1 is sleeved on the first assembly shaft 111, so that the connecting member K can drive the driving wheel set 10 to rotate, and the driving wheel set 10 rotates around the longitudinal direction X;

Preferably, the driving wheel set 10 further has a third wheel 13, the third wheel 13 is coaxially mounted on the frame A with the first wheel 11 and the second wheel 12, the first wheel 11, the second wheel 12 and the third wheel 13 can coaxially rotate, the first wheel 11 and the second wheel 12 are arranged along the longitudinal direction X, the third wheel 13 is equipped with a coil spring, and the coil spring is One end of the spiral spring is coupled to the third wheel 13, and the other end of the spiral spring is coupled to a housing 131. The third wheel 13 can rotate relative to the housing 131. By the elastic force of the spiral spring, when the user stops pulling the handle H, the driving wheel set 10 can be reversed and reset. The third wheel 13 is sleeved on the first shaft 14, and the third wheel 13 is driven to rotate by the first shaft 14.

A relay wheel 20 is mounted on the frame A and can rotate relative to the frame A. The relay wheel 20 rotates around the longitudinal direction X. In this embodiment, the relay wheel 20 is sleeved on a second shaft 21. The second shaft 21 is rotatably mounted on the frame A and can rotate relative to the frame A. The second shaft 21 extends along the longitudinal direction X. The relay wheel 20 is driven to rotate by the second shaft 21. A rotating shaft 30 is pivotally mounted on the frame A and can rotate relative to the frame A. The rotating shaft 30 extends along an axial direction Y, which is perpendicular to the longitudinal direction X. In this embodiment, the rotating shaft 30 is a hexagonal column. The rotating shaft 30 is connected to a resistance unit R by power. The rotating shaft 30 is used to drive the resistance unit R to rotate. The resistance unit R can provide different resistances when rotating forward and reverse. A first transmission member 40 is rotatable relative to the rotating shaft 30 and is sleeved on the rotating shaft 30. The outer peripheral surface of the first transmission member 40 has a first The sleeve surface 41 is an annular surface. The first transmission member 40 has a first engaging portion 42. The first engaging portion 42 is located at one end of the first transmission member 40 along the axial direction Y. In this embodiment, please refer to FIG. 4. A plurality of bearings B are installed between the first transmission member 40 and the rotating shaft 30. The bearings B are sleeved on the rotating shaft 30. The first transmission member 40 is sleeved outside the bearings B. The first sleeve surface 41 has a plurality of grooves. 411, the first engaging portion 42 has a plurality of first ratchets 421, the first ratchets 421 are annularly distributed on the end surface of the first transmission member 40; a second transmission member 50 is rotatably sleeved on the rotation shaft 30 relative to the rotation shaft 30, the outer peripheral surface of the second transmission member 50 has a second sleeve surface 51, the second sleeve surface 51 is annular, the second transmission member 50 has a second engaging portion 52, the second engaging portion 52 is located on the second transmission member 50 Along one end of the axis Y, the second transmission member 50 and the first transmission member 40 are located at different positions on the axis Y. In this embodiment, please refer to FIG. 4. A plurality of bearings B are installed between the second transmission member 50 and the rotating shaft 30. The bearings B are sleeved on the rotating shaft 30. The second transmission member 50 is sleeved on the bearings B. In addition, the second sleeve surface 51 has a plurality of grooves 511, and the second engaging portion 52 has a plurality of second ratchets 521. Two ratchets 521 are distributed in an annular shape on the end surface of the second transmission member 50; a clutch member 60 is coaxially rotatable with the rotating shaft 30 and sleeved on the rotating shaft 30. The clutch member 60 is located between the first transmission member 40 and the second transmission member 50. The clutch member 60 can be displaced along the axial direction Y. The clutch member 60 has a through hole 60A penetrating along the axial direction Y. The shape of the through hole 60A is the same as that of the rotating shaft 30, so that the clutch member 60 and the rotating shaft can be displaced. 30 can be coaxially rotated, the clutch 60 has a first transmission part 61 and a second transmission part 62, the first transmission part 61 and the second transmission part 62 are located at two opposite ends of the clutch 60, the first transmission part 61 faces the first engaging part 42, the second transmission part 62 faces the second engaging part 52, the first transmission part 61 is provided to engage with the first engaging part 42, the second transmission part 62 is provided to engage with the second engaging part 52, when the first transmission part 61 When the second transmission part 62 is engaged with the first engagement part 42, there is a distance between the second transmission part 62 and the second engagement part 52. At this time, when the first transmission part 40 rotates, the clutch 60 and the rotating shaft 30 are driven to rotate. On the contrary, when the second transmission part 62 is engaged with the second engagement part 52, there is a distance between the first transmission part 61 and the first engagement part 42. At this time, when the second transmission part 50 rotates, the clutch 60 and the rotating shaft 30 are driven to rotate.

In this embodiment, the through hole 60A is a hexagonal hole.

In this embodiment, the first transmission part 61 has a plurality of first transmission teeth 611, and the second transmission part 62 has a plurality of second transmission teeth 621. The first transmission teeth 611 face the first ratchet teeth 421, and the second transmission teeth 621 face the second ratchet teeth 521. The first transmission teeth 611 are provided to be clamped and combined with the first ratchet teeth 421, and the second transmission teeth 621 are provided to be clamped and combined with the second ratchet teeth 521. A belt Q is annular, and the belt Q is sequentially wound around the second wheel 12, the first transmission member 40, and the second transmission member 40. The first sleeve surface 41 of the intermediate wheel 20, the second sleeve surface 51 of the second transmission member 50; a pivot unit 70 drives the clutch member 60 to move along the axial direction Y to control the first transmission part 61 to engage with the first engaging part 42 or the second transmission part 62 to engage with the second engaging part 52; in this embodiment, please refer to Figures 3-5, the pivot unit 70 has a first driving member 71, a second driving member 72, a pivot member 73 and a handle 74, the first driving member 71 has an opposite engaging end 711 and a pivot The first driving member 71 has an end 712, the engaging end 711 drives the clutch 60 to move, the pivot end 712 is pivotally connected to the second driving member 72, the engaging end 711 and the pivot end 712 are pivotally connected to the frame A, the extension direction of the first driving member 71 is substantially perpendicular to the extension direction of the second driving member 72, the second driving member 72 extends along the axial direction Y, the other end of the second driving member 72 pivotally connected to the first driving member 71 is pivotally connected to the pivot member 73, the other end of the pivot member 73 pivotally connected to the second driving member 72 is coupled to the handle 74, the The handle 74 has a pivot end 741 and a pull end 742 opposite to each other. The pivot end 741 is pivotally connected to the frame A, and the pull end 742 is for the user to pull. The pivot member 73 is combined between the pivot end 741 and the pull end 742. When the user pulls the pull end 742, the handle 74 pivots around the pivot end 741, driving the pivot member 73 to pull the second driving member 72 to move along the axis Y, thereby driving the pivot end 712 to deflect, so as to drive the engaging end 711 to push the clutch 60 to move.

In this embodiment, please refer to Figures 3-5. The engaging end 711 of the first driving member 71 has two forked portions 71A, and the two forked portions 71A are located at two opposite sides of the clutch member 60. The clutch member 60 has a slot 63 between the first transmission portion 61 and the second transmission portion 62. The slot 63 is generally annular, so that the clutch member 60 is generally dumb-bell-shaped. A push member 71B is respectively installed on the two forked portions 71A. The two push members 71B are located in the slot 63. The two push members 71B are against the clutch member 60. Thereby, when the first driving member 71 is deflected, the push members 71B can push the clutch member 60 to move along the axial direction Y.

In this embodiment, the two push members 71B are rollers, and the rollers are pivotally mounted on the two fork portions 71A.

The above is an embodiment of the present invention and a description of each major component and configuration. The following is a description of its operation mode and effect.

When the user pulls the handle 74, the connecting member K is displaced, so that the connecting member K drives the first wheel 11 and the second wheel 12 to rotate. At this time, the belt Q around the second wheel 12 is driven to rotate by the second wheel 12. Please refer to Figures 3-5. Since the belt Q is cyclically arranged around the second wheel 12, the first transmission member 40, the relay wheel 20, and the second transmission member 50, when the belt Q rotates, it will synchronously drive the first transmission member 40 and the second transmission member 50 to rotate. At this time, the rotation directions of the first transmission member 40 and the second transmission member 50 are opposite. For example, when the first transmission member 40 is rotating forward, the second transmission member 50 is rotating reversely.

The user pulls or pushes the handle 74 of the pivot unit 70, and the handle 74 pivots around the pivot end 741, driving the pivot member 73 to pull the second driving member 72 to move along the axial Y direction, thereby driving the pivot end 712 to deflect, so as to drive the pushing member 71B on the fork portion 71A to push the clutch member 60 to move along the axial Y direction, so as to control the first transmission part 61 to engage with the first engaging part 42 or the second transmission part 62 to engage with the second engaging part 52.

Therefore, when the first transmission part 61 is engaged with the first engaging part 42, the first transmission member 40 drives the clutch member 60 to rotate forwardly, and drives the rotating shaft 30 to rotate forwardly. Conversely, when the second transmission part 62 is engaged with the second engaging part 52, the second transmission member 50 drives the clutch member 60 to rotate reversely, and drives the rotating shaft 30 to rotate reversely, thereby achieving the purpose of controlling the rotating shaft 30 of the exercise bike to rotate forward or reversely.

A: Frame

B: Bearing

H:Handle

K: Connectors

K1: Ring

R: Resistance unit

Q: Belt

10: Driving wheel set

11: First round

111: The first set of axes

12: Second round

13: Third round

131: Shell

14: First axis

20: Relay wheel

21: Second axis

30: Rotation axis

40: First transmission member

41: First socket

411: Card groove

42: First engagement portion

421: First thorn

50: Second transmission member

51: Second set of interfaces

511: Card groove

52: Second engagement portion

521: Second thorn tooth

60: Clutch

60A:Through hole

61: First transmission unit

611: First drive gear

62: Second transmission unit

621: Second drive gear

63: Card slot

70: pivot unit

71: First driver

71A: Fork

71B: Push piece

711: snap-on end

712:Pendulum end

72: Second driving member

73:Hanging pieces

74:Handle

741: Central terminal

742: trigger end

X: Vertical

Y: Axis

FIG1   is a three-dimensional view of the clutch device for adjusting the damping in the forward and reverse directions of the fitness bike of the present invention. FIG2   is a cross-sectional view of the clutch device for adjusting the damping in the forward and reverse directions of the fitness bike of the present invention. FIG3A   is a partial schematic view of the clutch device for adjusting the damping in the forward and reverse directions of the fitness bike of the present invention. FIG3B   is a partial schematic view of the clutch device for adjusting the damping in the forward and reverse directions of the fitness bike of the present invention. FIG4   is a partial cross-sectional view of the clutch device for adjusting the damping in the forward and reverse directions of the fitness bike of the present invention. FIG5   is a partial schematic view of the clutch device for adjusting the damping in the forward and reverse directions of the fitness bike of the present invention. FIG6   is a partial schematic view of the clutch device for adjusting the damping in the forward and reverse directions of the fitness bike of the present invention.

A: Frame

H:Handle

K: Connectors

R: Resistance unit

Q: Belt

10: Driving wheel set

11: First round

12: Second round

13: Third round

131: Shell

14: First axis

20: Relay wheel

21: Second axis

30: Rotation axis

40: First transmission member

50: Second transmission member

60: Clutch

70: pivot unit

71: First driver

71A: Fork

71B: Push piece

712:Pendulum end

72: Second driving member

73:Hanging pieces

74:Handle

741: Central terminal

742: trigger end

X: Vertical

Y: Axis

Claims (16)

A clutch device for adjusting the damping of a fitness bike in forward and reverse directions comprises: a handlebar; a connecting member, one end of which is connected to the handlebar, and the connecting member is driven by the handlebar; a driving wheel set, having a first wheel and a second wheel that can rotate coaxially, the connecting member is connected to the handlebar the other end of which is connected to the first wheel; a relay wheel that can rotate; a rotating shaft that can rotate; a first transmission member that can rotate relative to the rotating shaft and is sleeved on the rotating shaft, and the first transmission member has a first engaging portion; a second transmission member that can rotate relative to the rotating shaft and is sleeved on the rotating shaft, and the second transmission member has a second engaging portion; A clutch member is coaxially rotatable with the rotating shaft and sleeved on the rotating shaft. The clutch member is located between the first transmission member and the second transmission member. The clutch member can be displaced relative to the rotating shaft along the direction in which the rotating shaft extends. The clutch member has a first transmission part and a second transmission part. The first transmission part and the second transmission part are located at opposite ends of the clutch member. The first transmission part faces the first engagement part. The first transmission part is provided to be engaged with the first engaging part, and the second transmission part is provided to be engaged with the second engaging part. When the first transmission part is engaged with the first engaging part, the second transmission part is spaced apart from the second engaging part. On the contrary, when the second transmission part is engaged with the second engaging part, the first transmission part is spaced apart from the first engaging part. A belt is in a ring shape, and the belt is sequentially looped around the second wheel, the first transmission part, the intermediate wheel and the second transmission part; and a pivot unit drives the clutch to move, so as to control the first transmission part to be engaged with the first engaging part or the second transmission part to be engaged with the second engaging part. A clutch device for adjusting damping in forward and reverse directions of a fitness bike as described in claim 1, wherein a plurality of bearings are installed between the first transmission member and the rotating shaft, the bearings are sleeved on the rotating shaft, the first transmission member is sleeved outside the bearings, and a plurality of bearings are installed between the second transmission member and the rotating shaft, the bearings are sleeved on the rotating shaft, and the second transmission member is sleeved outside the bearings. A clutch device for adjusting damping in forward and reverse directions of an exercise bike as described in claim 1, wherein the outer peripheral surface of the first transmission member has a first sleeve surface, the outer peripheral surface of the second transmission member has a second sleeve surface, and the belt is wrapped around the first sleeve surface and the second sleeve surface. A clutch device for adjusting damping in forward and reverse directions of a fitness bike as described in claim 3, wherein the first sleeve surface and the second sleeve surface have a plurality of grooves. A clutch device for adjusting damping in forward and reverse directions of an exercise bike as described in claim 1, wherein the first engaging portion has a plurality of first ratchets, the first ratchets are distributed in a ring shape on the end surface of the first transmission member, the second engaging portion has a plurality of second ratchets, the second ratchets are distributed in a ring shape on the end surface of the second transmission member, the first transmission portion has a plurality of first transmission teeth, the second transmission portion has a plurality of second transmission teeth, the first transmission teeth face the first ratchets, the second transmission teeth face the second ratchets, the first transmission teeth are provided to be clamped and combined with the first ratchets, and the second transmission teeth are provided to be clamped and combined with the second ratchets. A clutch device for adjusting damping in forward and reverse directions of an exercise bike as described in claim 1, wherein the first wheel has a first set of shafts, and the connecting member is connected to one end of the first wheel and has a ring, and the ring is sleeved on the first set of shafts. A clutch device for adjusting damping in forward and reverse directions of an exercise bike as described in claim 1, wherein the driven wheel assembly further has a third wheel, the first wheel, the second wheel and the third wheel can rotate coaxially, the third wheel assembly is provided with a spiral spring, one end of the spiral spring is coupled to the third wheel, the other end of the spiral spring is coupled to a housing, and the third wheel can rotate relative to the housing. A clutch device for adjusting damping in forward and reverse directions of an exercise bike as described in claim 1, wherein the first wheel and the second wheel are mounted on a first shaft, the first shaft is rotatably mounted on a frame, the first wheel and the second wheel are driven to rotate by the first shaft, the intermediate wheel is mounted on a second shaft, the second axle hub is rotatably mounted on the frame relative to the frame, and the intermediate wheel is driven to rotate by the second shaft. A clutch device for adjusting the damping in forward and reverse directions of an exercise bike as described in claim 1, wherein the rotating shaft is provided for dynamic connection with a resistance unit, the rotating shaft is provided for driving the resistance unit to rotate forward or reversely, and the resistance unit can provide different resistances when rotating forward and reversely. A clutch device for adjusting damping in forward and reverse directions of a fitness bike as described in claim 1, wherein the clutch member has a through hole, and the shape of the through hole is the same as the shape of the rotating shaft. The clutch device for adjusting the damping in the forward and reverse directions of the fitness bike as described in claim 1, wherein the pivot unit has a first driving member, a second driving member, a pivot and a handle, the first driving member has an opposite engaging end and a pivot end, the engaging end drives the clutch, the pivot end is pivotally connected to the second driving member, the second driving member is pivotally connected to the first driving member, and the second driving member is pivotally connected to the first driving member. One end is pivoted to the pivot member, and the other end of the pivot member pivoted to the second driving member is combined with the handle. The handle has an opposite pivot end and a pull end, and the pull end is provided for the user to pull. The pivot member is combined between the pivot end and the pull end. The handle pivots with the pivot end as the center, driving the pivot member to pull the second driving member to move, and driving the pivot end to swing. A clutch device for adjusting damping in forward and reverse directions of a fitness bike as described in claim 11, wherein the engaging end of the first driving member has two forked portions, the two forked portions are located at two opposite sides of the clutch member, the clutch member has a slot between the first transmission member and the second transmission member, and a push member is respectively installed on the two forked portions, the two push members are located in the slot, and the two push members are against the clutch member. A clutch device for adjusting damping in forward and reverse directions of a fitness bike as described in claim 12, wherein the two push members are rollers, and the rollers are pivotally arranged on the two fork portions. The clutch device for adjusting the damping in the forward and reverse directions of the fitness bike as described in claim 1 is provided to be installed on a frame, wherein the driven wheel set is provided to be pivoted on the frame, the driven wheel set can rotate relative to the frame, and the relay wheel is provided to be pivoted on the frame and can rotate relative to the frame. The clutch device for adjusting the damping in the forward and reverse directions of the fitness bike as described in claim 11 is provided for installation on a frame, wherein the engaging end and the pivot end are provided for pivoting to the frame, and the pivot end is provided for pivoting to the frame. A clutch device for adjusting damping in forward and reverse directions of a fitness bike as described in claim 1, wherein the first wheel and the second wheel are arranged along a longitudinal direction, the intermediate wheel rotates around the longitudinal direction, the rotation axis extends along an axial direction, the first engaging portion is at one end of the first transmission member along the axial direction, the second engaging portion is at one end of the second transmission member along the axial direction, the second transmission member and the first transmission member are located at different positions in the axial direction, and the clutch member can be displaced along the axial direction.

Images