Bicycle training device

Abstract

A bicycle training device comprises a base unit, a swing part, a buffer unit and a fixing unit. The base unit comprises a first base body, a second base body and a shaft piece. The swing piece comprises a body part fixedly connected with the shaft piece, a first wing part and a second wing part. The buffer unit comprises a first elastic piece and a second elastic piece. When the swing part is located at the left swing position, the first elastic part is extruded by the first wing part to generate bias force enabling the swing part to rotate in the right-handed rotation direction. When the swing part is located at the right swing position, the second elastic part is extruded by the second wing part to generate bias force enabling the swing part to rotate in the left rotation direction. The swinging piece can elastically swing left and right along with the treading action of the user, so that the user can train more easily and comfortably.

Description

Technical Field

[0001] The invention relates to a training device, in particular to a bicycle training device. Background Art

[0002] An existing bicycle training device, such as that disclosed in Taiwan Invention Patent Publication No. TW201306903A, comprises a base, a support frame fixedly connected to the base, and a transmission device disposed on the support frame and used for the bicycle.

[0003] When a user rides on the bicycle for pedaling training, the bicycle will slightly swing left and right with the user's pedaling action. Since the support frame is directly connected to the base, the support frame will limit the left and right swing of the bicycle, reducing the user's pedaling comfort. Moreover, after long-term use, the connection between the support frame and the base will frequently bear stress and easily deform or damage, so the bicycle trainer also has the disadvantage of a short service life. Summary of the invention

[0004] The object of the present invention is to provide a bicycle training device which can improve at least one of the above-mentioned disadvantages.

[0005] The bicycle training device of the present invention comprises a base unit, a swinging member, a buffer unit, and a holding unit. The base unit comprises a first seat body extending in a left-right direction, a second seat body connected to the first seat body in a front-to-back direction perpendicular to the left-right direction, and a shaft member extending along an axis and arranged on the second seat body. The axis extends in the front-to-back direction, and the shaft member can rotate relative to the second seat body in a left-hand direction or a right-hand direction opposite to the left-hand direction around the axis. The swinging member comprises a main body portion fixedly connected to the shaft member and located on one side of the first seat body in an up-down direction perpendicular to the left-right direction and the front-to-back direction, a first wing portion extending from one side of the main body portion in a direction away from the main body portion in the left-right direction, and a second wing portion extending from a side of the main body portion opposite to the first wing portion in a direction away from the main body portion in the left-right direction. The buffer unit comprises a first elastic member arranged on the first seat body and located between the first wing portion and the first seat body in the up-down direction, and a second elastic member arranged on the first seat body and located between the second wing portion and the first seat body in the up-down direction. The holding unit is connected to one end of the shaft away from the swinging member along the front-to-back direction and is used for installation on the bicycle. The holding unit can drive the shaft and the swinging member to change the swinging member between a left swing position and a right swing position relative to the first seat. When the swinging member is in the left swing position, the first wing is closer to the first seat than the second wing and squeezes the first elastic member. The first elastic member is compressed to generate a biasing force that causes the swinging member to rotate in the right-hand direction. When the swinging member is in the right swing position, the second wing is closer to the first seat than the first wing and squeezes the second elastic member. The second elastic member is compressed to generate a biasing force that causes the swinging member to rotate in the left-hand direction.

[0006] In the bicycle training device described in the present invention, the first elastic member is connected between the first wing and the first seat body, and the second elastic member is connected between the second wing and the first seat body. When the swing member is located in the left swing position, the second wing is away from the first seat body and stretches the second elastic member, and the second elastic member generates a biasing force to rotate the swing member in the right-hand direction. When the swing member is located in the right swing position, the first wing is away from the first seat body and stretches the first elastic member, and the first elastic member generates a biasing force to rotate the swing member in the left-hand direction.

[0007] In the bicycle training device of the present invention, the first seat body is located below the first elastic member and the second elastic member along the up-down direction.

[0008] In the bicycle training device of the present invention, the second seat body is located in front of the first seat body along the front-to-back direction.

[0009] The bicycle training device described in the present invention has an inner annular surface that defines a through hole around the axis, and the base unit also includes a bushing arranged in the through hole and for the shaft member to pass through, and the shaft member has an axial body portion that is in sliding contact with the bushing and connected to the holding unit, and an axial end portion that is connected between a side of the holding unit opposite to the axial body portion and the main body portion of the swinging member.

[0010] The bicycle training device described in the present invention comprises a sleeve tightly fitted on the inner annular surface of the second seat body, and a ring abutting against a side of the sleeve adjacent to the first seat body along the front-to-back direction and abutting against the inner annular surface of the second seat body in sliding contact, and the shaft portion of the shaft member slidably contacts the sleeve and the ring.

[0011] In the bicycle training device described in the present invention, the main body of the swinging member has an inner surface that defines an opening around the axis, and a groove formed on the inner surface and extending along the front-to-back direction. The shaft end is tightly fitted in the opening, and the shaft member also has a protrusion that extends along the front-to-back direction and protrudes radially from the shaft end and is embedded in the groove.

[0012] The bicycle training device described in the present invention is characterized in that the first seat body has a first screw hole facing the first elastic member along the up-down direction, and a second screw hole facing the second elastic member along the up-down direction, the first elastic member has a first elastic body, a first connecting portion connected to the first elastic body and abutting against the first wing, and a first screw rod portion connected to the side of the first elastic body opposite to the first wing and locked in the first screw hole, the second elastic member has a second elastic body, a second connecting portion connected to the second elastic body and abutting against the second wing, and a second screw rod portion connected to the side of the second elastic body opposite to the second wing and locked in the second screw hole, the first wing has a first through hole penetrating along the up-down direction and facing the first connecting portion, the second wing has a second through hole penetrating along the up-down direction and facing the second connecting portion, and the buffer unit also includes two fixing screws that respectively pass through the first through hole and the second through hole and are respectively locked in the first connecting portion and the second connecting portion.

[0013] The bicycle training device described in the present invention, the base unit also includes two support rods pivotally connected to the second seat body and located on two opposite sides of the holding unit along the left-right direction, each of the support rods has a pivot end pivotally connected to the second seat body, and a free end opposite to the pivot end, the support rod can be transformed between a folded position and an expanded position relative to the holding unit, when the support rod is located at the folded position, the free end is close to the holding unit, when the support rod is located at the expanded position, the free end is away from the holding unit.

[0014] In the bicycle training device of the present invention, when the swinging member is in a balanced position relative to the first seat body, the first wing and the second wing are equidistant from the first seat body, the first wing does not exert force on the first elastic member, and the second wing does not exert force on the second elastic member.

[0015] The beneficial effect of the present invention is that, by virtue of the swinging member rotatably arranged on the base unit and the buffer unit arranged between the base unit and the swinging member, when the user is training, the swinging member will elastically swing left and right along with the pedaling action of the user, which not only allows the user to train more easily and comfortably, but also increases the service life of the bicycle training device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional composite diagram of an embodiment of the bicycle training device of the present invention installed on the bicycle, and two support rods of the embodiment are located in an unfolded position relative to a holding unit;

[0017] Figure 2 is a partial three-dimensional exploded view of the embodiment;

[0018] Figure 3 is a perspective exploded view of the embodiment;

[0019] Figure 4 is along Figure 2 An incomplete cross-sectional view taken along line IV-IV in FIG. 1 , wherein a swinging member is located in a balanced position relative to a first seat body;

[0020] Figure 5 is along Figure 4 An incomplete cross-sectional view taken along line VV;

[0021] Figure 6 is a three-dimensional composite diagram illustrating that the support rod of the embodiment is located in a retracted position;

[0022] Figure 7 is similar Figure 4 but the swing member is in a left swing position; and

[0023] Figure 8 is similar Figure 4 , but the swing member is in a right swing position. DETAILED DESCRIPTION

[0024] The present invention is described in detail below with reference to the accompanying drawings and embodiments. Before the present invention is described in detail, it should be noted that the front-to-back direction X, left-right direction Y and up-down direction Z referred to in the following description are based on the user's operation. Figure 2 The orientation of the present invention is taken as the standard, and the front-to-back direction X, the left-to-right direction Y and the up-down direction Z are perpendicular to each other.

[0025] See also Figure 1 The bicycle training device of the present invention is suitable for installation on a bicycle 6 after the rear wheel is removed (not shown). The bicycle 6 after the rear wheel is removed comprises a rear frame 61 and a flywheel 62 disposed on the rear frame 61 and used to be installed on the bicycle training device.

[0026] See also Figure 2 and Figure 3 The bicycle training device comprises a base unit 1, a holding unit 2, a swinging member 3, a buffer unit 4, and a shell cover 5.

[0027] The base unit 1 includes a first base body 11 , a second base body 12 , a bushing 13 , a shaft 14 , and two support rods 15 .

[0028] The first seat body 11 extends along the left-right direction Y and has a first screw hole 111 and two second screw holes 112 that are open upward along the up-down direction Z. The first screw hole 111 and the second screw holes 112 are arranged at intervals along the left-right direction Y. The second seat body 12 is connected to the front side of the first seat body 11 along the front-back direction X. The second seat body 12 has an inner annular surface 122 that defines a through hole 121 around an axis L. The axis L extends along the front-back direction X.

[0029] See also Figures 3 to 5 The bushing 13 is arranged in the through hole 121 and has a sleeve 131 which is tightly fitted on the inner annular surface 122 of the second seat body 12, and a ring 132 which abuts against the side of the sleeve 131 adjacent to the first seat body 11 along the front-to-back direction X and abuts against the inner annular surface 122 of the second seat body 12 in sliding contact.

[0030] The shaft member 14 extends along the axis L and passes through the sleeve 131 and the ring 132 and has a shaft body 141 that is in sliding contact with the sleeve 131 and the ring 132, an shaft end 142 that is connected to the rear side of the shaft body 141 along the front-to-back direction X and is located above the first seat body 11, and a protrusion 143 that extends along the front-to-back direction X and is radially protruded from the shaft end 142.

[0031] The support rod 15 is pivotally connected to the second base body 12 and extends from the second base body 12 in a direction opposite to the first base body 11. The support rod 15 is located on two opposite sides of the axis L. Each of the support rods 15 has a pivotal end 151 pivotally connected to the second base body 12 and a free end 152 opposite to the pivotal end 151.

[0032] See also Figures 1 to 3 The holding unit 2 includes a mounting seat 21 extending along the front-to-back direction X and connected to a side of the shaft end 142 opposite to the shaft body 141, a resistance device 22 disposed on the mounting seat 21, and a holding device 23 disposed on the resistance device 22. The mounting seat 21 is located between the support rods 15 along the left-right direction Y. The holding device 23 has a ratchet seat 231 that is rotatably coupled to the resistance device 22 and is used for mounting the flywheel 62 of the bicycle 6. The resistance device 22 is used to generate resistance to the rotation of the ratchet seat 231. Since the combination structure of the holding unit 2 and the bicycle 6 is not the technical focus of this case, it will not be described in further detail.

[0033] See also Figures 3 to 5 , the swing member 3 is connected to the shaft end 142 of the shaft member 14 and is located above the first seat body 11 along the up-down direction Z. Specifically, the swing member 3 includes a main body 31 fixedly connected to the shaft end 142 of the shaft member 14, a first wing 32 extending from one side of the main body 31 toward a direction away from the main body 31 along the left-right direction Y, and a second wing 33 extending from a side of the main body 31 opposite to the first wing 32 toward a direction away from the main body 31 along the left-right direction Y.

[0034] The main body 31 is generally C-shaped and has an inner surface 312 partially surrounding the axis L to define an opening 311, a groove 313 formed on the inner surface 312 and extending along the front-rear direction X, a notch 314 extending along the front-rear direction X and communicating with the opening 311, and two adjustment screws 315 passing through the main body 31 at two opposite sides of the notch 314 in the up-down direction Z. The shaft end 142 of the shaft member 14 is disposed in the opening 311, and the protrusion 143 is inserted into the groove 313, so that the shaft end 142 cannot rotate relative to the main body 31. By tightening the adjustment screw 315 to reduce the notch 314 and the opening 311, the shaft end 142 of the shaft member 14 is tightly fitted in the opening 311, so that the shaft member 14 can swing more stably and integrally with the swing member 3.

[0035] The first wing portion 32 has a first through hole 321 penetrating along the up-down direction Z and corresponding to the first screw hole 111 . The second wing portion 33 has two second through holes 331 penetrating along the up-down direction Z and corresponding to the second screw holes 112 .

[0036] The buffer unit 4 is located above the first seat body 11 along the up-down direction Z. The buffer unit 4 includes a first elastic member 41 disposed on the first seat body 11 and located between the first through hole 321 of the first wing portion 32 and the first screw hole 111 of the first seat body 11 along the up-down direction Z, two second elastic members 42 disposed on the first seat body 11 and located between the second through hole 331 of the second wing portion 33 and the second screw hole 112 of the first seat body 11 along the up-down direction Z, and three fixing screws 43.

[0037] The first elastic member 41 is connected between the first wing 32 and the first seat 11, and the second elastic member 42 is connected between the second wing 33 and the first seat 11. Specifically, the first elastic member 41 has a first elastic body 411, a first connecting portion 412 connected to the first elastic body 411 and abutting against the first wing 32, and a first screw portion 413 connected to the first elastic body 411 opposite to the first wing 32 and locked in the first screw hole 111. Each of the second elastic members 42 has a second elastic body 421, a second connecting portion 422 connected to the second elastic body 421 and abutting against the second wing 33, and a second screw portion 423 connected to the second elastic body 421 opposite to the second wing 33 and locked in the respective second screw hole 112. The first connecting portion 412 and the second connecting portion 422 are respectively formed with respective inner screw holes. The fixing screw 43 passes through the first through hole 321 and the second through hole 331 respectively and is locked in the first connecting portion 412 and the second connecting portion 422 respectively.

[0038] In this embodiment, the first elastic member 41 and the second elastic member 42 are shock-absorbing rubber, the first connecting portion 412, the second connecting portion 422, the first screw portion 413 and the second screw portion 423 are made of metal, and the first elastic body 411 and the second elastic body 421 are made of rubber.

[0039] It should be noted that, although the number of the first elastic members 41 in the present embodiment is less than the number of the second elastic members 42, in other variations of the present embodiment, the number of the first elastic members 41 and the second elastic members 42 is not limited, and the number of the first elastic members 41 and the second elastic members 42 may also be symmetrically arranged, the number of the first elastic members 41 may also be plural, and the number of the first screw holes 111 and the first through holes 321 may correspond to the change in the number of the first elastic members 41, the number of the second elastic members 42 may also be one or more than three, and the number of the second screw holes 112 and the second through holes 331 may also correspond to the change in the number of the second elastic members 42.

[0040] The housing cover 5 covers the swing member 3 and the buffer unit 4 and is fixed to the second base 12 through screws.

[0041] See also Figure 1 and Figure 6, the support rod 15 can be changed between a folded position and an extended position relative to the holding unit 2. When the support rod 15 is in the folded position, the free end 152 is close to the holding unit 2, and the base unit 1 is generally I-shaped, so as to reduce the width of the bicycle training device for easy storage. When the support rod 15 is in the extended position, the free end 152 is away from the holding unit 2, and the base unit 1 is generally V-shaped, and the first seat body 11, the second seat body 12 and the free end 152 can be supported on the ground for the user to use for training.

[0042] See also Figure 4 , Figure 7 and Figure 8 The swing member 3 can be transformed between a balanced position, a left swing position, and a right swing position relative to the first seat body 11.

[0043] See also Figure 4 When the swing member 3 is at the equilibrium position, the first wing 32 and the second wing 33 extend approximately horizontally and are equidistant from the first seat 11. The first wing 32 does not exert force on the first elastic member 41, and the second wing 33 does not exert force on the second elastic member 42.

[0044] When the user rides the bicycle 6 for training and causes the bicycle 6 to swing left and right, the bicycle 6, the holding device 23, the resistance device 22 and the mounting seat 21 will swing together, and the mounting seat 21 will drive the shaft 14 and the swinging member 3 to rotate around the axis L relative to the second seat body 12 in a left-hand direction D1 or a right-hand direction D2 opposite to the left-hand direction D1, thereby causing the swinging member 3 to switch between the left-hand position and the right-hand position.

[0045] See also Figure 7 When the swing member 3 is in the left swing position, the first wing portion 32 is closer to the first seat body 11 than the second wing portion 33 and presses the first elastic member 41, and the second wing portion 33 is away from the first seat body 11 and stretches the second elastic member 42. At this time, the first elastic body 411 of the first elastic member 41 is compressed and the second elastic body 421 of the second elastic member 42 is stretched, so the first elastic member 41 and the second elastic member 42 generate a biasing force that causes the swing member 3 to rotate along the right-hand direction D2.

[0046] See also Figure 8, when the swing member 3 is in the right swing position, the second wing 33 is closer to the first seat 11 than the first wing 32 and squeezes the second elastic member 42, and the first wing 32 is away from the first seat 11 and stretches the first elastic member 41. At this time, the second elastic body 421 of the second elastic member 42 is compressed and the first elastic body 411 of the first elastic member 41 is stretched, so the first elastic member 41 and the second elastic member 42 generate a biasing force that causes the swing member 3 to rotate along the left-hand direction D1. In other words, if the holding unit 2 is directly pulled by hand to move the swing member 3 to the left swing position or the right swing position, and then the hand is released, the first elastic member 41 and the second elastic member 42 will drive the swing member 3 to swing left and right until the swing member 3 automatically returns to the equilibrium position.

[0047] Therefore, when the bicycle 6 swings left and right, the first elastic member 41 and the second elastic member 42 can provide a reverse buffering force to the bicycle 6 along the tilting direction of the bicycle 6. When the user performs a long-term training process, the burden of pedaling can be reduced, fatigue can be reduced, and the comfort during pedaling can be improved. In addition, since the holding device 23 can swing with the bicycle 6, the stress on the joint between the bicycle 6 and the holding device 23 can be reduced, and the probability of damage to the bicycle 6 and the holding device 23 can be reduced. In addition, the shaft member 14 is pivotally connected to the base unit 1 through the sleeve 131 and the ring 132, which can also improve the smoothness of the rotation of the shaft member 14, and can also reduce the stress on the joint between the mounting seat 21 and the base unit 1, further improving the service life of the bicycle training device.

[0048] It should be noted that in other variations of this embodiment, as long as a buffering force can be provided when the swinging member 3 swings, the effect of reducing the swinging degree of the swinging member 3 is achieved, and the elastic structure of the first elastic member 41 and the second elastic member 42 is not limited. For example, the first elastic member 41 and the second elastic member 42 can also be replaced by other elastic structures such as springs or reeds.

[0049] In summary, the bicycle training device of the present invention, by means of the swinging member 3 rotatably disposed on the base unit 1 and the buffer unit 4 disposed between the base unit 1 and the swinging member 3, when the user is training, the swinging member 3 will elastically swing left and right along with the pedaling action of the user, which not only allows the user to train more easily and comfortably, but also increases the service life of the bicycle training device, so that the purpose of the present invention can be achieved.

[0050] The above are merely embodiments of the present invention and should not be used to limit the scope of the present invention. All simple equivalent changes and modifications made according to the claims and description of the present invention are still within the scope of the present invention.

Claims

1. A bicycle training device; characterized in that: Include: A base unit, comprising a first base extending in a left-right direction, a second base connected to the first base in a front-to-back direction perpendicular to the left-right direction, and a shaft member extending along an axis and disposed on the second base, wherein the axis extends in the front-to-back direction, and the shaft member can rotate around the axis relative to the second base in a left-hand direction or a right-hand direction opposite to the left-hand direction; The swing member includes a main body portion fixedly connected to the shaft member and located on one side of the first seat body along the up-down direction perpendicular to the left-right direction and the front-back direction, a first wing portion extending from one side of the main body portion in the left-right direction toward a direction away from the main body portion, and a second wing portion extending from a side of the main body portion opposite to the first wing portion in the left-right direction toward a direction away from the main body portion; A buffer unit, comprising a first elastic member disposed on the first base and located between the first wing and the first base along the up-down direction, and a second elastic member disposed on the first base and located between the second wing and the first base along the up-down direction; and A holding unit is connected to one end of the shaft away from the swinging member along the front-to-back direction and is used for installation on the bicycle. The holding unit can drive the shaft and the swinging member to change the swinging member between a left swing position and a right swing position relative to the first seat body. When the swinging member is in the left swing position, the first wing is closer to the first seat body than the second wing and squeezes the first elastic member. The first elastic member is compressed to generate a biasing force that causes the swinging member to rotate in the right-hand direction. When the swinging member is in the right swing position, the second wing is closer to the first seat body than the first wing and squeezes the second elastic member. The second elastic member is compressed to generate a biasing force that causes the swinging member to rotate in the left-hand direction.

2. The bicycle training device according to claim 1, characterized in that: The first elastic member is connected between the first wing and the first seat body, and the second elastic member is connected between the second wing and the first seat body. When the swinging member is located in the left swing position, the second wing is away from the first seat body and stretches the second elastic member, and the second elastic member generates a bias force to rotate the swinging member along the right-hand direction. When the swinging member is located in the right swing position, the first wing is away from the first seat body and stretches the first elastic member, and the first elastic member generates a bias force to rotate the swinging member along the left-hand direction.

3. The bicycle training device according to claim 1, characterized in that: The first seat body is located below the first elastic member and the second elastic member along the up-down direction.

4. The bicycle training device according to claim 1, characterized in that: The second seat body is located at the front side of the first seat body along the front-to-back direction.

5. The bicycle training device according to claim 4, characterized in that: The second seat body has an inner annular surface that defines a through hole around the axis, and the base unit also includes a bushing arranged in the through hole and for the shaft member to pass through, and the shaft member has an axial body portion that is in sliding contact with the bushing and connected to the fixing unit, and an axial end portion that is connected between the side of the fixing unit opposite to the axial body portion and the main body portion of the swinging member.

6. The bicycle training device according to claim 5, characterized in that: The bushing has a sleeve tightly fitted on the inner annular surface of the second seat body, and a ring abutting against a side of the sleeve adjacent to the first seat body along the front-to-back direction and abutting against the inner annular surface of the second seat body in sliding contact, and the shaft body of the shaft member slides in contact with the sleeve and the ring.

7. The bicycle training device according to claim 5, characterized in that: The main body of the swinging member has an inner surface that partially defines an opening around the axis, and a groove formed on the inner surface and extending along the front-to-back direction. The shaft end is tightly fitted in the opening. The shaft member also has a protrusion that extends along the front-to-back direction and radially protrudes from the shaft end and is embedded in the groove.

8. The bicycle training device according to claim 1, characterized in that: The first seat body has a first screw hole facing the first elastic member along the up-down direction, and a second screw hole facing the second elastic member along the up-down direction, the first elastic member has a first elastic body, a first connecting portion connected to the first elastic body and abutting against the first wing, and a first screw portion connected to the side of the first elastic body opposite to the first wing and locked in the first screw hole, the second elastic member has a second elastic body, a second connecting portion connected to the second elastic body and abutting against the second wing, and a second screw portion connected to the side of the second elastic body opposite to the second wing and locked in the second screw hole, the first wing has a first through hole that penetrates along the up-down direction and faces the first connecting portion, the second wing has a second through hole that penetrates along the up-down direction and faces the second connecting portion, and the buffer unit also includes two fixing screws that respectively pass through the first through hole and the second through hole and are respectively locked in the first connecting portion and the second connecting portion.

9. The bicycle training device according to claim 1, characterized in that: The base unit also includes two support rods pivotally connected to the second base body and located on opposite sides of the holding unit along the left-right direction, each of the support rods having a pivot end pivotally connected to the second base body and a free end opposite to the pivot end, the support rod can be transformed between a folded position and an expanded position relative to the holding unit, when the support rod is located at the folded position, the free end is close to the holding unit, and when the support rod is located at the expanded position, the free end is away from the holding unit.

10. The bicycle training device according to claim 1, characterized in that: When the swinging member is at a balanced position relative to the first seat, the first wing and the second wing are equidistant from the first seat, the first wing does not exert force on the first elastic member, and the second wing does not exert force on the second elastic member.

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