JPH0930466A - Saddle cushioning device for floating support type bicycle by rocking arm - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture a bicycle having good comfortableness by floatingly supporting a saddle indirectly on the rear upper end section of the rocking arm with a long span without directly fixing it to a body frame pipe. SOLUTION: A saddle 15 is vertically rocked centering on the front end fixed fulcrum section 3 of a rocking arm 1 with a long span at the radius of the length of the rocking arm 1. Vertical shocks are cushioned and absorbed by the proper combined characteristics of a curved plate spring 10 and an oil damper 17, and a saddle cushion mechanism having a long stroke and good comfortableness can be formed. The longitudinal position of the saddle 15 can be adjusted via the adjustment of the length of the rocking arm 1, the fixing position of the front end fulcrum fixing metal 2 of the rocking arm 1, and the longitudinal fixing position of a saddle frame 16 and a saddle fixing metal 13. The right and left positions of the saddle 15 against the bicycle center axis can be supported without being practically deflected largely when the structure and fitting lateral rigidity of the rocking arm 1 and the structure and fitting lateral rigidity of the curved plate spring 10 are devised.

Description

Detailed Description of the Invention

[0001]

[Industrial application] Bicycle saddle

[0002]

2. Description of the Related Art The saddle of a bicycle directly attached to a vehicle frame pipe, which has been widely used in the past, has an extremely poor shock absorbing and absorbing function.

[0003]

Cycling cars, mountain bikes, and other general-purpose bicycles also have a hard saddle cushion, and it is necessary to improve a comfortable shock absorbing and absorbing function suitable for long-time running.

[0004]

According to the present invention, the conventional frame pipe structure of a bicycle is used as much as possible, and a. Long span saddle floating support swing arm. b. Shock absorbing springs such as curved leaf springs. c. Hydraulic damper for vibration damping. The above-mentioned drawbacks are solved by forming a saddle floating support structure in which the above are combined in a composite manner.

[0005]

[Operation] The saddle is not directly fixed to the vehicle body frame pipe but indirectly floatingly supported by the rear upper end of the swing arm of the long span, and the vertical shock from the road surface to the saddle is indirectly connected by the leaf spring and the hydraulic damper. To absorb and relax it.

[0006]

[Embodiment] Frame pipe 30 for connecting the front and rear of a vehicle
Long-span saddle floating support swing arm 1
The rocking fulcrum fixing metal fitting 2 for supporting the front end portion of the above is securely fixed in front of the frame pipe portion through a protective hard rubber sheet 4 or the like.

Two saddle floating support swing arms 1 of parallel symmetry or a structure in which these are integrally connected in an H-shape are arranged on both left and right sides of the swing rotation fulcrum portion 3 of the fixed metal fitting, Metallic cylindrical collars are welded to the front and rear ends of the rocking arm 1, and the rocking fulcrum portion 3 is formed on the front end cylindrical collar 5 with a through bolt and nut through a needle bearing 7 or the like.
Securely fix it so that it can swing.

Clamping flange portion 19 of a fastener 11 for fixing the saddle to a vertically sliding saddle fixing pipe 8 inserted in a frame pipe 40 of the same vehicle central portion as a conventional vehicle.
The lower end portion of the leaf spring 10 curved upward and diverging toward the opposite side is welded and fixed, the metallic cylindrical collars 12 are welded and fixed to both upper end side portions of the leaf spring, and the center portion of the upper end of the spring is a saddle. It is welded and fixed to the frame central fixing member 13.

Both metallic cylindrical collars 6 welded to both sides of the rear end of the saddle floating support swing arm and metallic cylindrical collars 1 welded to both sides of the upper end of the leaf spring.
The bolts and nuts that horizontally pass through the central hole of the saddle frame fixing bracket using the two central holes ensure that the rear end of the saddle floating support swing arm, the upper end of the leaf spring, and the saddle 15 are integrated and secured. Fix it.

A saddle frame 16 and a saddle are made by using bolts (19) bolts for fastening flanges (19) of a leaf spring lower end fastening fixture 11 for indirectly fixing the saddle to the vertical sliding pipe 8 of the vehicle center through the leaf springs. A hydraulic damper 17 having an appropriate function is inserted and fixed between the central fittings 13 for fixing 15 in an appropriate layout in which the upper and lower ends can be swung smoothly.

With the above structure and the method of mounting each part, the saddle vertically swings about the swing arm front end fixed fulcrum portion 3 of the long span with the swing arm length as the radius, and the vertical impact causes the leaf spring 10 and the hydraulic pressure. It is possible to form a saddle cushion mechanism which is cushioned and absorbed by an appropriate combination characteristic of the damper 17, and which has a long stroke and is comfortable and comfortable to ride.

The front and rear positions of the saddle can be adjusted by adjusting the swing arm length and the fixed position of the swing arm front end fulcrum fixing fitting, and adjusting the front and rear fixing positions of the saddle frame and the saddle fixing fitting.

The lateral position of the saddle with respect to the vehicle center axis is
With a structure of a swing arm that is integrally connected in a left-right parallel symmetry or an H-shaped unit and its mounting lateral rigidity, and a curved leaf spring structure that supports the saddle in the vertical direction and lateral rigidity of its mounting. It can be supported practically without bending significantly.

The empty saddle height is a mutual relation of the swing arm length, the fixed position of the swing arm front end fulcrum fixing metal fitting, the fixed height position of the lower end portion of the curved leaf spring, and the shapes and dimensions of the curved leaf spring and the hydraulic damper. Depends on.

In this embodiment, a curved leaf spring is used for shock absorption, but instead of this, a compression coil spring and other springs may be appropriately arranged to provide the same function as described above.

The shape of the swing arm front end fulcrum fixing fitting (2) may be changed according to the shape, thickness, etc. of the corresponding frame pipe portion of the vehicle to be mounted.

[0017]

EFFECTS OF THE INVENTION It is possible to manufacture a high-quality and comfortable bicycle having a cushion function greatly improved as compared with the conventional frame pipe direct-attachment type saddle.

It is possible to significantly improve the saddle cushion function only by modifying the saddle portion without changing the basic frame pipe structure of the conventional vehicle.

By improving the shock absorbing function to the saddle, the shocks to the wheels are dispersed and alleviated accordingly, so that the durability of the fork and the rim can be improved.

Since the rear end portion of the curved leaf spring slightly swings in accordance with the vertical movement of the saddle, it is suitable for a smart high mount reflector mounting location which is excellent in visibility from behind at night.

[Brief description of drawings]

FIG. 1 is a side view showing the arrangement and connection of main components of a saddle floating support according to the present invention.

FIG. 2 is an overall layout diagram showing an example of a bicycle with a saddle device according to the present invention.

FIG. 3 is a sectional view of the upper surface of the saddle assembly of the present invention.

FIG. 4 is a three-dimensional view of a swing arm, a leaf spring, and a saddle fixing metal fitting connection.

FIG. 5 is a three-dimensional view of a curved leaf spring portion attachment portion connection. [Parts of bolts and nuts are omitted except for "Fig. 3". ]

[Explanation of symbols]

1 Saddle floating support swing arm 2 Swing fulcrum fixing bracket 3 Swing rotation fulcrum 4 Rubber sheet for frame pipe protection 5 Swing arm front end weld fixed cylindrical collar 6 Swing arm rear end weld fixed cylindrical collar 7 Needle bearing 8 Vertical sliding saddle fixing pipe 9 Vertical sliding pipe tightening fixing metal fitting 10 Curved leaf spring 11 Leaf spring lower end tightening fixing fitting 12 Leaf spring upper end both sides weld fixed cylindrical collar 13 Saddle frame center fixing fitting 14 Saddle frame both side part fixing metal fittings 15 saddle 16 saddle frame 17 hydraulic damper 18 hydraulic damper upper connection fixing metal fittings (13 integrally connected to the lower part) 19 leaf spring lower end tightening flange portion 20 adjustment collar 30 upper and lower connecting structure frame pipe 40 Vehicle central structure frame pipe

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[Procedure amendment]

[Submission date] September 25, 1995

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

Patent application title: Saddle shock absorber for a floating support type bicycle using a swing arm

[Claims]

Detailed Description of the Invention

[0001]

[Industrial application] Bicycle saddle shock absorber
You.

[0002]

2. Description of the Related Art The saddle of a bicycle directly attached to a vehicle frame pipe, which has been widely used in the past, has an extremely poor shock absorbing and absorbing function.

[0003]

Cycling cars, mountain bikes, and other general-purpose bicycles also have a hard saddle cushion, and it is necessary to improve a comfortable shock absorbing and absorbing function suitable for long-time running.

[0004]

According to the present invention, the conventional frame pipe structure of a bicycle is used as much as possible, and a. Long span saddle floating support swing arm. b. Shock absorbing spring such as curved leaf spring. c. Oil damper for vibration damping. The above-mentioned drawbacks are solved by forming a saddle floating support structure in which the above are combined in a composite manner.

[0005]

[Operation] The saddle is not directly fixed to the body frame pipe, but is indirectly floatingly supported by the rear upper end of the swing arm of the long span, and the vertical shock from the road surface to the saddle is indirectly reflected by the leaf spring and the oil damper. To absorb and relax it.

[0006]

[Embodiment] Frame pipe 30 for connecting the front and rear of a vehicle
Long-span saddle floating support swing arm 1
The rocking fulcrum fixing metal fitting 2 for supporting the front end portion of the above is provided in front of the frame pipe portion through a protective hard rubber sheet 4 or the like.
The swing rotation fulcrum portion 3 of the metal fitting is fixed so as to be horizontal .

Two saddle floating support swing arms 1 of parallel symmetry or a structure in which these are integrally connected in an H-shape are arranged on both left and right sides of the swing rotation fulcrum portion 3 of the fixed metal fitting, Metallic cylindrical collars are welded to the front and rear ends of the rocking arm 1, and the rocking fulcrum portion 3 is formed on the front end cylindrical collar 5 with a through bolt and nut through a needle bearing 7 or the like.
Securely fix it so that it can swing.

Clamping flange portion 19 of a fastener 11 for fixing the saddle to a vertically sliding saddle fixing pipe 8 inserted in a frame pipe 40 of the same vehicle central portion as a conventional vehicle.
And the lower end portion of the leaf spring 10 to be curved upward diverging fixedly welded to the opposite side, a cylindrical collar 12 of each metal in the upper end both side portions of the plate spring is fixedly welded, the plate spring upper central portion It is welded and fixed to the saddle frame central fixing member 13.

The center holes of both metallic cylindrical collars 6 welded to both sides of the rear end of the saddle floating support swing arm and metallic cylindrical collars 12 welded to both sides of the upper end of the leaf spring are used. Then, the rear end of the saddle floating support swing arm, the upper end of the leaf spring and the saddle 15 are integrally and surely fixed at an appropriate angle by a bolt and a nut that horizontally penetrates the central hole of the saddle frame fixing bracket. .

The saddle frame 16 and the saddle 15 are attached to each other by utilizing the fastening bolts of the flange portion 19 of the leaf spring lower end fastening and fixing metal fitting 11 which indirectly fixes the saddle to the vehicle center vertical sliding pipe 8 through the leaf spring. Central metal fitting 13 to fix
Smoothly inserted pivotably secured thereto appropriate layout upper and lower end portions of the oil damper 17 having an appropriate damping function between.

With the above structure and the method of mounting each part, the saddle vertically swings about the swing arm front end fixed fulcrum portion 3 of the long span with the swing arm length as the radius, and the vertical impact causes the leaf spring 10 and the oil. It is possible to form a saddle cushion mechanism which is cushioned and absorbed by an appropriate combination characteristic of the damper 17, and which has a long stroke and is comfortable and comfortable to ride.

The front and rear positions of the saddle can be adjusted by adjusting the swing arm length, the fixed position of the swing arm front end fulcrum fixing member 2 , the front and rear fixing positions of the saddle frame 16 and the saddle fixing member 13 , and the like.

The lateral position of the saddle with respect to the vehicle center axis is
Structure and mounting lateral rigidity of the swing arm integrally connected to two or H-type shape in the left and right parallel symmetrically, and devised the lateral rigidity of the curved plate spring structure which supports the saddle in the vertical direction and its mounting support for without in flex practical large
You can

[0014] bare saddle height, fixed position of the swing arm length and the swing arm front fulcrum fixing bracket 2, a lower end portion fixed height position of the curved plate spring 10, the curved plate spring 10 and
It is determined by the mutual relationship of the shape and size of the oil damper 17 .

In this embodiment, a curved leaf spring is used for shock absorption, but instead of this, a compression coil spring and other springs may be appropriately arranged to provide the same function as described above.

The shape of the swing arm front end fulcrum fixing bracket 2 is
It may be changed according to the shape, thickness, etc. of the corresponding frame pipe portion of the vehicle to be mounted.

[0017]

As compared with the conventional frame pipe direct mounting type saddle, it is possible to manufacture a high-grade and comfortable bicycle having a significantly improved cushioning function.

It is possible to significantly improve the saddle cushion function only by modifying the saddle portion without changing the basic frame pipe structure of the conventional vehicle.

By improving the shock absorbing function to the saddle, the shocks to the wheels are dispersed and alleviated accordingly, so that the durability of the fork and the rim can be improved.

Since the rear end of the curved leaf spring slightly swings and bends in accordance with the vertical movement of the saddle, it is suitable for mounting a smart high mount reflector which is highly visible from the rear at night.

[Brief description of drawings]

FIG. 1 is a side view showing the arrangement and connection of main components of a saddle floating support according to the present invention.

FIG. 2 shows the overall structure of a bicycle with a saddle device according to the present invention.
Side view .

[Figure 3] the present invention saddle flat surface assembly diagram.

FIG. 4 is a three-dimensional view of a swing arm, a leaf spring, and a saddle fixing metal fitting connection.

[5] curved plate spring portion attachment portions coupled perspective view. [ Note that some bolts and nuts are omitted except for "Fig. 3". ]

[Explanation of symbols] 1 Saddle floating support swing arm 2 Swing fulcrum fixing bracket 3 Swing rotation fulcrum part 4 Rubber sheet for frame pipe protection 5 Swing arm front end welding fixed cylindrical collar 6 Swing arm rear end welding Fixed Cylindrical Collar 7 Needle Bearing 8 Vertical Sliding Saddle Fixed Pipe 9 Vertical Sliding Pipe Tightening Fixture 10 Curved Leaf Spring 11 Leaf Spring Lower End Tightening Fixture 12 Leaf Spring Upper Side Both Sides Weld Fixed Cylindrical Collar 13 Saddle Frame center fixing bracket 14 Saddle frame both side fixing brackets 15 Saddle 16 Saddle frame 17 Oil damper 18 Oil damper Upper connecting fixing bracket (13 integrally connected to the lower part) 19 Leaf spring lower end tightening flange part 20 Adjustment collar 30 Upper part Front and rear connecting structure frame pipe 40 Vehicle center structure frame pipe

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

[Fig. 2]

[Figure 3]

FIG. 4

[Figure 5]

Claims (1)

[Claims] 1. A saddle without directly fixing the saddle to a body frame: a. The front and rear connecting structure frame pipe (30) is fixed to the front end rocking rotation fulcrum (3) of the long span on both left and right sides in parallel symmetry, or they are integrated into an H shape. The rear upper end of the saddle floating support arm (1) of a structure to be connected to. b. Inside the frame pipe (40) of the vehicle center part, a leaf spring (10) curved upward and outward is fixed to a conventional saddle fixing pipe (8) that slides up and down with a leaf spring lower end tightening fixing metal fitting (11). Upper end of. c. The lower end of the curved plate spring is fixed at the lower end with a fixing bracket (1
The upper end part of the hydraulic damper (17) swingably fixed to the tightening flange part (19) bolt of 1). A saddle mechanism for a bicycle, which is characterized in that the saddle is floatingly supported and fixed to the upper part of the vehicle indirectly and compositely at the free end by basically three members or two members a and b.