JPH0930474A - Ultraviolet ray preventing device for bicycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a rider to be sufficiently protected from ultraviolet ray even if the posture of the rider seated on a saddle is not fixed according to his configuration, while the rider seated on the saddle can utilize effectively a support bracket for supporting a cover body as a back rest. SOLUTION: A saddle 16 is supported on the upper part of a car body frame 2. A support bracket 36 extending vertically near the rear of the saddle 16 is provided. A cover body 42 is provided above the saddle 16 to be mounted to the upper end 39 of the support bracket 36. The lower end of the support bracket 36 is pivotably supported by a pivot shaft on the car body frame 2 in the lower side than the seat surface of the saddle 16. The support bracket 36 is pivoted about the pivot shaft forward and backward. A holder 47 is provided which allows the car body frame 2 to hold the support bracket 36 under any pivotal posture.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bicycle ultraviolet protection device for protecting an occupant seated on a bicycle saddle mainly from ultraviolet radiation.

[0002]

2. Description of the Related Art Conventionally, there is a bicycle ultraviolet protection device described in Japanese Utility Model Laid-Open No. 6-63490.

[0003] According to this, a saddle is supported at the upper end of the vehicle body frame, a support bracket extending in the vertical direction is provided near the rear of the saddle, and a cover body is provided above the saddle. It is attached to the upper end of the support bracket.

The cover body protects the occupant sitting on the saddle from ultraviolet rays by covering the occupant from above.

[0005]

However, in the above-mentioned conventional construction, the support bracket is simply fixed to the vehicle body frame, and thus has the following disadvantages.

First, the postures of the occupants sitting on the saddle differ from one occupant to another depending on their body shape and the like. However, since the cover covering the occupant is fixed to the vehicle body frame, the respective postures of such a cover are different. May not be sufficiently protected from ultraviolet light.

Secondly, an occupant seated on the saddle may utilize the lower part of the support bracket located near the rear of the saddle as a backrest, but since the support bracket is fixed to the vehicle body frame, The support bracket may not be available as a backrest according to passenger preference.

Third, in view of the above first and second problems,
The lower end of the support bracket is pivotally supported by the vehicle body frame so that the support bracket can be rotated back and forth together with the cover body, and the support bracket is held by the vehicle body frame in an arbitrary rotation posture. It is conceivable to provide a tool, and to operate the holding tool to bring the support bracket into a desired rotation posture.

However, since each component of the bicycle is compactly arranged and the surplus space is extremely small, simply providing the above-mentioned holder may make it difficult to operate the holder.

Fourth, the cover body is detached from the vehicle body frame as necessary. However, as described above, since the extra space of the bicycle is narrow, the work of attaching and detaching the support bracket to and from the vehicle body frame may be complicated. .

Fifth, bicycles are equipped with electrical components such as a headlight, a warning buzzer, a direction indicator, and a rear light (red). These batteries are powered by a battery. The power supply must be replaced every time it is consumed, which makes maintenance and inspection of the power supply complicated.

[0012]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has the following objects.

First, it is possible to sufficiently protect each occupant from ultraviolet rays even if the occupant's posture sitting on the saddle is not constant due to the body shape or the like.

Secondly, an occupant seated on the saddle can effectively use the support bracket for supporting the cover body as a backrest.

Thirdly, the operation for achieving the first and second objects can be easily performed.

Fourthly, it is possible to easily attach and detach the support bracket and the cover body to and from the vehicle body frame.

Fifth, the maintenance and inspection work of the power source mounted on the bicycle should be facilitated.

[0018]

SUMMARY OF THE INVENTION An apparatus for preventing ultraviolet light of a bicycle according to the present invention for achieving the above object is as follows.

According to the first aspect of the present invention, the saddle 16 is supported on the upper portion of the vehicle body frame 2, the supporting bracket 36 extending vertically is provided near the rear of the saddle 16, and the cover body 42 is provided above the saddle 16. , This cover body 42
Is attached to the upper end portion 39 of the support bracket 36, the lower end portion of the support bracket 36 is below the seating surface 31 of the saddle 16 and the vehicle body frame 2
Is pivotally supported by a pivot shaft 45, and the support bracket 36 is rotatable back and forth about the pivot shaft 45.
A holder 47 is provided to hold the support bracket 36 on the vehicle body frame 2 in an arbitrary rotating posture.

According to the invention of claim 2, in addition to the invention of claim 1, the vehicle body frame 2 rotatably supports a front fork 3 for supporting the front wheels 5, and a head pipe 20 from this head pipe 20. A down pipe 21 extending rearward and downward, a back stay 22 extending upward from a rear end portion of the down pipe 21, and a back stay 2
A seat stay 23 extending rearward and downward from the upper end of
The same as above, a chain stay 24 extending rearward from the lower end of the back stay 22, and a rear bracket for supporting the rear wheel 9 which is formed at the joint between the seat stay 23 and the rear ends of the chain stay 24. 25, and the saddle 16 is detachably supported on the upper end of the back stay 22, the lower end of the support bracket 36 is detachably pivoted on the front end of the seat stay 23, and the holder 47 is attached. The front end of the holder 47 is detachably attached to the saddle 16, and the rear end of the holder 47 is attached to the middle of the support bracket 36 in the longitudinal direction.
The support bracket 36 is held by the vehicle body frame 2 in an arbitrary rotational posture by the operation of.

The invention of claim 3 is the invention of claim 1 or 2.
In addition to the above invention, the cover body 42 is detachably attached to the upper end portion of the support bracket 36.

According to the invention of claim 4, in addition to the invention of any one of claims 1 to 3, a solar cell 66 is attached to the cover body 42.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment)

1 to 5 show a first embodiment.

In FIG. 1, reference numeral 1 denotes a bicycle which can run on a road surface G, arrow Fr indicates the front of the bicycle 1, and the left and right described below means the vehicle width direction toward the front. .

The bicycle 1 has a body frame 2, and a front fork 3 is rotatably supported on the front end of the body frame 2. A front wheel 5 is rotatably supported by an axle 4 at a lower end of the front fork 3, and a bar-shaped handle 6 is attached to an upper end of the front fork 3.

A rear wheel 9 is rotatably supported by an axle 8 at the rear end of the vehicle body frame 2.

A front chain wheel 10 is rotatably supported at a lower end of a middle portion of the vehicle body frame 2 in the front-rear direction so as to be rotatable about an axis extending in the left-right direction. On the other hand, a rear chain wheel 11 is rotatably supported around the axis of the axle 8 of the rear wheel 9, and a chain 12 is wound around the wheels 10, 11. Further, the left and right pedals 13, 1 which rotate together with the front chain wheel 10 are described.
3 are provided.

A saddle 16 for seating an occupant 15 is detachably attached to the upper end portion of the body frame 2 in the front-rear direction.

When the occupant 15 seated on the saddle 16 depresses the pedals 13, 13 to rotate the pedals 13, 13, the rear wheel 9 is passed through the front chain wheel 10, the chain 12, and the rear chain wheel 11 which are rotated accordingly. The power from the occupant 15 is transmitted to and is rotated,
The bicycle 1 can run forward on the road surface G.

As shown in FIG. 1, the body frame 2 is a frame made of a plurality of pipe members having a circular cross section. The body frame 2 includes a head pipe 20 supporting the front fork 3 and a rear lower portion of the head pipe 20. Pair of upper and lower down pipes 21 and 21 extending toward the rear end, a back stay 22 extending upward from the rear end portions of the both down pipes 21 and 21, and a rear rear lower portion extending from the upper end portion of the back stay 22. A pair of left and right seat stays 23, 23 and a pair of left and right chain stays 24, 24 extending rearward from the lower end of the back stay 22.
The rear wheel 9 is formed at the joint of the rear ends of the seat stay 23 and the chain stay 24 with each other to connect the rear wheel 9 to the axle 8.
And a rear bracket 25 that is supported through the rear bracket 25.
The body frame 2 is formed by joining the above-described members 20 to 25 to each other by welding.

A portion where the rear end of the down pipe 21, the lower end of the back stay 22 and the front end of the chain stay 24 are connected to each other forms a bottom bracket 26, which is attached to the bottom bracket 26. And each pedal 13 is supported via the axle 4.

In FIGS. 1 and 3, the back stay 2 is shown.
Reference numeral 2 denotes a circular pipe member, and an inner hole 29 at the upper end thereof is opened rearward and upward. On the other hand, the saddle 16 has a saddle body 30 on which the occupant 15 is seated, and the upper surface side of the saddle body 30 is a seating surface 31. A saddle bracket 32 protrudes downward from the lower surface side of the saddle body 30. The saddle bracket 32 is formed of a pipe material having a circular cross section.

The saddle bracket 32 is removably fitted into the upper end of the back stay 22, and in this fitted state, the saddle bracket 32 is vertically slidable in the back stay 22.

Bolt type saddle lock means 34 for detachably fastening the saddle bracket 32 to the back stay 22 is provided at an arbitrary desired position of the saddle bracket 32 with respect to the upper end portion of the back stay 22. The height of the seating surface 31 of the saddle body 30 can be arbitrarily adjusted (arrow A in FIG. 3).

1 to 5, the bicycle 1 is provided with an ultraviolet protection device 35 for the occupant 15. The ultraviolet protection device 35 has a support bracket 36 that extends in the vertical direction in the vicinity of the rear of the saddle body 30 of the saddle 16. The support bracket 36 includes a pair of left and right bracket pipes 37, 37, and a plurality of cross members 38 in a vertical direction for connecting the bracket pipes 37, 37 to each other. The lowermost cross member 38 of the cross members 38 penetrates through the lower ends of the left and right bracket pipes 37, 37, and is connected to the bolt bodies 40, and the bolt bodies 40 are connected to the bracket pipes 37. The lock nut 41 is detachably fastened.

By changing the fastening position of the lock nuts 41 to the bolt body 40 by screwing the lock nuts 41, the dimension between the lower end portions of the left and right bracket pipes 37, 37 can be changed and adjusted. Has been done. Also,
A bolt insertion hole 44 is formed in the upper one of the cross members 38, and a detachable attachment of an advertising board or the like to the support bracket 36 can be arbitrarily performed by the bolt inserted into the bolt insertion hole 44. ing.

The lower end of the support bracket 36 is supported by the vehicle body frame 2. On the other hand, the upper end 39 of the same support bracket 36 is formed by bending the upper end of each bracket pipe 37 forward, and the cover body 42 is detachably attached to the upper end 39. The cover body 42 is provided above the saddle 16 and covers the occupant 15 seated on the saddle 16 from above.

The front ends of the seat stays 23 are provided with first brackets 43, 43 for mounting the loading platform, respectively. The lower ends of the support brackets 36 are pivotally supported by the first brackets 43, 43 by pivot shafts 45 whose axial centers extend to the left and right, that is, the support bracket 36 is interposed through the first bracket 43. The saddle body 30 is pivotally supported by seat stays 23 of the vehicle body frame 2 below the seating surface 31. The support bracket 36 is rotatable back and forth about the pivot shaft 45 (arrow B in FIGS. 1 and 3).

In the above case, since the support bracket 36 is pivotally supported by the first brackets 43, 43 for mounting the carrier, the support bracket 36 is pivotally supported by a simple structure. Since the first brackets 43, 43 are already provided, the first brackets 43, 4 are provided.
By operating each lock nut 41 of the cross member 38 so as to match the dimension between the three bracket pipes 37, both bracket pipes 37,
Change and adjust the dimension between the lower ends of 37. As a result, the support brackets 3 are positioned with respect to the first brackets 43, 43.
6 is pivoted without rattling.

A holder 47 is provided for holding the support bracket 36 on the vehicle body frame 2 in an arbitrary rotating posture. The holder 47 is provided with the saddle bracket 3.
The second bracket 48 includes a second bracket 48 that is fitted to and detachably attached to the second bracket 2, and a fastener 49 that detachably fastens the second bracket 48 to the saddle bracket 32.

The holder 47 is provided with a bolt body 50 extending in the front-rear direction, and the bolt body 50 is pivotally supported by the second bracket 48 by a pivot shaft 51 so as to be vertically rotatable. The rear end of the bolt body 50 passes through a hole formed in the cross member 38, and lock nuts 53 are screwed to the rear end of the bolt body 50 before and after the cross member 38. By operating these lock nuts 53, 53, the separation distance between the pivot 51 and the cross member 38 can be adjusted. That is, the support bracket 36 is attached to the cover
When the cross member 38 is sandwiched between the lock nuts 53, the support bracket 36 can be held on the vehicle body frame 2 in an arbitrary rotation posture. The holder 47
May be provided upside down.

The left and right bracket pipes 37 of the support bracket 36 are divided into upper and lower parts, each of which is composed of an upper pipe 54 and a lower pipe 55. The lower pipe 55 is made of iron to ensure sufficient strength and rigidity. On the other hand, the upper pipe 54 is made of aluminum and is lightweight, and can be bent slightly elastically. The lower end of the upper pipe 54 is slidably fitted to the upper end of the lower pipe 55 in the longitudinal direction.

Locking means 56 which is a bolt for detachably fixing the upper pipe 54 at a predetermined position of the lower pipe 55.
Is provided. The vertical position of the cover body 42 with respect to the lower pipe 55 can be adjusted by sliding the upper pipe 54 vertically with respect to the lower pipe 55 and operating the locking means 56 (FIGS. 2, 4). Middle arrow C).

The cover body 42 includes a cover body main body 58,
A cover frame 59 made of aluminum pipe and lightweight is attached to the lower surface of the cover body 58 with screws, and an eave 61 is attached to the front end of the cover frame 59. The cover body 58 and the eaves 61 are made of an acrylic plate,
Made of resin such as PP board or vinyl chloride board, transparent,
It is translucent or opaque, both of which block ultraviolet rays and also work as rain shields.

Each rear end of the cover frame 59 extends rearward, and each rear end of the cover frame 59 is removably fitted in the front end of the upper end 39 of the support bracket 36 in the front-rear direction. It can be inserted.

Locking means 60, which is a bolt for detachably fixing the cover frame 59 at a predetermined position on the upper end portion 39 of the support bracket 36, is provided. Cover frame 5 for upper end 39 of support bracket 36
The position of the cover body 42 in the front-rear direction with respect to the upper end 39 of the support bracket 36 can be adjusted by sliding in the front-rear direction 9 and operating the locking means 60 (arrow D in FIG. 4).

By loosening the locking means 60 and moving the cover body 42 forward of the upper end 39 of the support bracket 36, the fitting of the cover frame 59 to the upper end 39 of the support bracket 36 is released, The cover body 42 can be removed from the support bracket 36.

According to the procedure reverse to the above, the cover body 42 can be attached to the upper end 39 of the support bracket 36.

According to the above construction, the holder 4 which allows the support bracket 36 to rotate back and forth and holds the support bracket 36 on the vehicle body frame 2 in an arbitrary rotation posture.
7 is provided.

Therefore, when the posture of the occupant 15 seated on the saddle body 30 of the saddle 16 is not constant, the support bracket 36 is rotated backward together with the posture so that the posture is rearward (FIG. 1, FIG. 3 solid line shown), or
It may be rotated forward to a front rotation posture (shown by a dashed line in FIGS. 1 and 3).

The pivot shaft 45, which is the center of rotation of the support bracket 36, is located below the seating surface 31 of the saddle body 30 of the saddle 16. For this reason, when the support bracket 36 is used as a backrest of the occupant 15 seated on the saddle body 30 of the saddle 16, the support bracket 36 is rotated back and forth to obtain a desired rotation posture that suits the occupant 15's preference. Can be.

Since the position of the cover body 42 in the front-rear direction is changed by the rotation of the support bracket 36, if the cover body 42 is adjusted to the desired position in the front-rear direction by operating the locking means 60. Good.

Further, the height of the back of the occupant 15 is not constant, but this can be dealt with by operating the locking means 56 to adjust the vertical position of the cover body 42.

Further, the lower end portion of the support bracket 36 is detachably pivoted on the front end portion of the seat stay 23, and the holder 4
7 is detachably attached to the saddle 16, the rear end of the holder 47 is attached to a middle part of the support bracket 36 in the longitudinal direction, and the support bracket 36 is optionally operated by operating the holder 47. Is held by the vehicle body frame 2 in the turning posture of.

In this way, the holder 47 is located above the vehicle body frame 2, and the holder 47 can be operated without being disturbed by the vehicle body frame 2.

Further, as described above, the support bracket 36 for supporting the cover body 42 is supported by the front end portion of the seat stay 23 located at the upper end portion of the vehicle body frame 2, and
The holder 47 is also supported by the saddle 16 above the body frame 2.

Therefore, the attachment / detachment work of the support bracket 36 to / from the vehicle body frame 2 can be performed without being disturbed by the vehicle body frame 2.

Moreover, the cover body 42 is detachable from the upper end of the support bracket 36.

Therefore, even when the support bracket 36 is still attached to the vehicle body frame 2, it is considered that the resistance of the traveling wind by the support bracket 36 is small, and the cover body 42 is unnecessary, the support bracket 36 is not necessary. It is sufficient to remove the cover body 42 from the support bracket 36 in a one-touch type while the is attached to the vehicle body frame 2. Therefore, the work of removing the cover body 42 when the cover body 42 is unnecessary can be extremely easily performed.

The lower end of the support bracket 36 may be supported by the axle 8 for the rear wheel 9, as indicated by the chain double-dashed line in FIG. Further, the bracket pipe 37 and the cover frame 59 may be formed of a resin pipe.

The following drawings show the second to fourth embodiments. Since each of these embodiments is common in many points in the configuration and operation of the first embodiment, the common components are denoted by the same reference numerals in the drawings, and description thereof will be omitted. The differences will be mainly described.

(Second Embodiment)

FIG. 6 shows a second embodiment.

According to this, the elastic edging member 64 made of rubber or the like is attached to the peripheral edge of the cover body 58 of the cover body 42.

According to this structure, when an impact is applied to the cover body 58, the cover body 58 is prevented from being damaged.

(Third Embodiment)

FIG. 7 shows a third embodiment.

According to this, the right and left side edges of the cover body 58 of the cover body 42 are bent upward to form the rain gutter 65. This gutter 65 covers 42
The rainwater which is about to fall from the upper surface of the cover 42 is guided to the rear of the cover body 42.

According to this structure, rainwater falling from the upper surface of the cover body 42 is prevented from going to the occupant 15, and the protection of the occupant 15 is further improved.

Further, the rain gutter 65 improves the strength and rigidity of the cover body 42, and the weight of the cover body 42 is correspondingly reduced, so that the riding comfort of the bicycle 1 is improved.

A solar cell 66 is attached to the upper surface of the cover body 42. The solar cell 66 supplies power to a headlight, a battery, and the like mounted on the bicycle 1.

Since the solar cell 66 functions as long as there is sunlight, a conventional battery is unnecessary as a power source.

(Fourth Embodiment)

FIG. 8 shows a fourth embodiment.

According to this, the cover body 42 has the cover body main body 58 and the locked portion 67 attached to the lower surface thereof.
It is composed of

The engaged portion 67 can be engaged with and disengageably engaged with the engaging portion 68 attached to the upper end 39 of the support bracket 36 from the front of the engaging portion 68 in the front-rear direction. .

The engaged portion 67 is formed of an elastic leaf spring, and when the engaged portion 67 engages with the engaging portion 68, the engaged portion 67 elastically engages with the engaging portion 68. The pressure contact is made so that the engaged state is maintained. That is, the locked portion 67 also serves as the locking means 60.

69 is a stopper.

[0081]

The effects of the present invention are as follows.

According to the first aspect of the present invention, the saddle is supported on the upper portion of the vehicle body frame, the supporting bracket extending vertically is provided near the rear of the saddle, and the cover body is provided above the saddle. In the ultraviolet protection device for a bicycle, which is attached to the upper end portion of the support bracket, the lower end portion of the support bracket is pivotally supported on the vehicle body frame by a pivot shaft below the seating surface of the saddle. There is provided a holder that allows the support bracket to be pivoted back and forth around the center and holds the support bracket on the vehicle body frame in an arbitrary rotational posture.

Therefore, when the posture of the occupant seated on the saddle body of the saddle is not constant, the support bracket is rotated backward or forward together with the cover body in accordance with the posture so that the desired rotation posture is obtained. do it.

Therefore, according to this ultraviolet ray protection device, each occupant can be sufficiently protected from ultraviolet rays.

Further, the pivot shaft serving as the center of rotation of the support bracket is located below the seating surface of the saddle body of the saddle. Therefore, when the support bracket is used as a backrest of an occupant seated on the saddle body of the saddle, the support bracket may be rotated back and forth to obtain a desired rotation posture that suits the occupant's preference.

Therefore, the support bracket supporting the cover can be effectively used for the backrest.

According to the second aspect of the present invention, the body frame supports the front fork for supporting the front wheels in a steerable manner, a head pipe, and a down pipe extending rearward and downward from the head pipe. A back stay that extends upward from the rear end of the down pipe, a seat stay that extends rearward and downward from the upper end of the back stay, and a chain stay that extends rearward from the lower end of the back stay. A bicycle having a rear bracket for supporting a rear wheel, which is formed at a connecting portion between rear end portions of a seat stay and a chain stay, and a saddle is detachably supported on an upper end portion of the back stay. The lower end of the support bracket is detachably supported by the front end of the stay, and the front end of the holder is detachably attached to the saddle. The rear end portion of the holder attached to the intermediate portion in the longitudinal direction of the support bracket, it is constituted such that it is held on the vehicle body frame above the support bracket at any rotational orientation in operation to the retainer.

Therefore, the holder is located above the body frame, and the holder can be operated without being obstructed by the body frame.

Therefore, it is possible to easily bring the support bracket together with the cover body into a desired rotational posture.

Further, as described above, the support bracket for supporting the cover body is supported by the front end portion of the seat stay located at the upper end portion of the vehicle body frame, and the holder is also supported by the saddle above the vehicle body frame. ing.

Therefore, the work for attaching and detaching the support bracket to and from the body frame can be performed without being disturbed by the body frame.

Therefore, it is possible to easily attach and detach the support bracket to and from the vehicle body frame.

According to the third aspect of the invention, the cover body is detachable from the upper end of the support bracket.

Therefore, the cover body can be removed from the support bracket in a one-touch manner while the support bracket is still attached to the vehicle body frame.

Therefore, the work of removing the cover body when the cover body is unnecessary is extremely easy.

According to the invention of claim 4, the solar cell is attached to the cover body.

Since the above solar cell functions as long as there is sunlight, a conventional battery is unnecessary as a power source.

Therefore, the amount of maintenance and inspection work required for the power source mounted on the bicycle can be reduced.
Inspection work can be done easily.

[Brief description of drawings]

FIG. 1 is an overall side view of a bicycle according to a first embodiment.

FIG. 2 is a front view of the ultraviolet protection device according to the first embodiment.

FIG. 3 is a partially enlarged view of FIG. 1 in the first embodiment.

FIG. 4 is a partially enlarged view of FIG. 1 in the first embodiment.

FIG. 5 is a bottom view of the cover according to the first embodiment.

FIG. 6 is a diagram corresponding to a part of FIG. 2 in a second embodiment.

FIG. 7 is a diagram corresponding to a part of FIG. 2 in the third embodiment.

FIG. 8 is an exploded perspective view of an ultraviolet protection device according to a fourth embodiment.

[Explanation of symbols]

 Reference Signs List 1 bicycle 2 body frame 3 front fork 5 front wheel 8 axle 9 rear wheel 15 occupant 16 saddle 20 head pipe 21 down pipe 22 back stay 23 seat stay 24 chain stay 25 rear bracket 30 saddle body 31 seating surface 32 saddle bracket 35 UV protection device 36 Support bracket 39 Upper end part 42 Cover body 45 Pivot shaft 47 Holder 58 Cover body main body 59 Cover frame 60 Lock means 64 Edge member 65 Rain gutter 66 Solar cell

Claims (4)

[Claims] 1. A saddle is supported on an upper part of a vehicle body frame, a support bracket extending vertically is provided near the rear of the saddle, a cover body is provided above the saddle, and the cover body is provided at an upper end portion of the support bracket. In the bicycle ultraviolet protection device attached to the bicycle, the lower end of the support bracket is pivotally supported on the body frame by a pivot shaft below the seating surface of the saddle, and the support bracket is centered on the pivot shaft. An ultraviolet protection device for a bicycle, which is provided with a holder that is rotatable back and forth and that holds the support bracket on the vehicle body frame in an arbitrary rotating posture. 2. A body pipe, a head pipe rotatably supporting a front fork for front wheel support, and a down pipe extending rearward and downward from the head pipe.
A back stay extending upward from the rear end of the down pipe, a seat stay extending rearward and downward from the upper end of the back stay, and a chain stay extending rearward from the lower end of the back stay. A bicycle having a rear bracket for supporting a rear wheel, which is formed at a joint between the rear ends of the seat stay and the chain stay, and in which a saddle is detachably supported on the upper end of the back stay. The lower end of the support bracket is detachably pivoted on the front end of the seat stay, the front end of the holder is removably attached to the saddle, and the rear end of the retainer is the middle portion in the longitudinal direction of the support bracket. The bicycle according to claim 1, wherein the bicycle is mounted on a vehicle body frame, and the support bracket is held on the vehicle body frame in an arbitrary rotational posture by operating the holder. UV protection device. 3. The bicycle ultraviolet protection device according to claim 1, wherein the cover body is detachable from the upper end of the support bracket. 4. The bicycle ultraviolet protection device according to claim 1, wherein a solar cell is attached to the cover body.