JPH063786U - Bicycle saddle adjuster - Google Patents

Abstract

(57) [Abstract] [Purpose] It is an object of the present invention to provide an adjusting device for easily adjusting the inclination and the front-rear direction of a bicycle saddle. [Structure] Clamping means 9 inserted into the frame 8 of the bicycle
And a fixed cylinder 2 which is inserted between both sides of the U-shaped holding portion 50 and through which the adjustment shaft 1 extends horizontally in the vertical direction. And U
A clasp 6 that holds two saddle retaining rods 7 of a saddle body 11 on the outer sides of both sides of the character-shaped holding portion 50, and a first and a first adjustment shaft 1 inside the clasp 6 and the fixed cylinder 2. The adjustment shaft 1 is composed of first and second ring bolts 32 and 31 that connect the two eccentric blocks 14 and 13, respectively, and is rotatable from the outside.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bicycle saddle fixing device.

[0002]

[Prior art]

 In the conventional bicycle saddle fixing device, generally, two saddle holding rods fixed to the saddle body are tightened with bolts, respectively, to a stop plate provided on a column which is inserted and fixed to the bicycle frame.

[0003]

[Problems to be solved by the device]

 Since the bolts are tightened as described above, it is necessary to perform a complicated operation to adjust the tilt of the saddle according to the physique, and it is almost impossible to adjust the front and rear.

An object of the present invention is to solve the above problems and provide an adjusting device that facilitates tilting and adjusting the saddle forward and backward.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, in a bicycle saddle fixing device, a column 5 inserted into a frame 8 of a bicycle and fixed by a clamp means 9, and a U-shaped holding portion 50 is formed at a tip thereof. The fixed cylinder 2 which is inserted between both sides of the U-shaped holding portion 50 of the support column 5 and through which the adjustment shaft 1 extends transversely to the axial direction, and the saddle body 11 on the outside of both sides of the U-shaped holding portion 50. Of the two saddle-holding rods 7 and the two first and second stoppers 6 which connect the stoppers 6 on both sides and the adjusting shaft 1 inside the fixed cylinder 2, respectively. It consists of two ring bolts 32 and 31.

On both sides of the U-shaped holding portion 50 of the support column 5, a vertical groove 51, which is opened from the upper side to the position of the center line of the fixed cylinder 2 and into which the first and second ring bolts 32 and 31 are inserted, and a lower end. A lateral groove 52 opened from one side is provided.

The fixed cylinder 2 has elongated projections 23 that engage with the vertical grooves 51 on both ends and a large hole 21 on the lower side and a small hole on the upper side that are formed on a straight line that intersects vertically at the center of the center line. A hole 22 is provided.

The adjusting shaft 1 includes a first eccentric block 14 provided in the middle of a vertical portion of the fixed cylinder 2, two second eccentric blocks 13 provided on both sides of the first eccentric block 14, and an outer side of the fixed cylinder 2 at the upper end. The annular groove opened to mount the C-shaped snap ring 16 and the enlarged portion 15 which is loosely fitted in the large hole 21 at the lower end of the vertical portion, and the handle 12 at the tip bent at a right angle on the lower side. Is provided.

The stopper 6 has a hole 62 through which the first or second ring bolts 32 and 31 pass and a saddle fixed to the saddle body 11 laterally on the upper end side of the surface facing the U-shaped holding portion 50. A long groove 61 opened so as to sandwich the holding rod 7 is provided.

The first ring bolt 32 is provided with a single annular portion 321 provided at one end and a male screw portion threaded at the other end.

The second ring bolt 31 is provided at one end, and the upper and lower annular portions 311 and 312 are double-structured so that the annular portion 321 of the first ring bolt 32 is loosely fitted in the middle. The male threads are provided, and the mounting rings 4 are screwed into the male threads.

As another form, the first and second ring bolts 32a, 31a are provided with a screw hole 41 at the other end, and a square counterbore is provided at the outer opening end of the hole 62a of the stopper plate 6a. There is.

[0013]

【Example】

 1 is an exploded perspective view of a bicycle saddle adjusting device according to an embodiment of the present invention, FIG. 2 is a partial sectional view of the bicycle in an open state, and FIG. 3 is a partial sectional view of the same in a tightened state. is there.

This adjusting device is inserted into the frame 8 of the bicycle, is fixed by the clamp means 9, and the column 5 having the U-shaped holding portion 50 formed at the tip, and the U-shaped holding portion 50 of the column 5. A fixed cylinder 2 which is inserted between both sides and through which an adjusting shaft 1 extends laterally in a direction perpendicular to the axial direction, and two saddles which are fixed to the saddle body 11 outside both sides of the U-shaped holding portion 50. Two stoppers 6 that hold the holding rods 7 respectively, and two first and second ring bolts that connect the stoppers 6 on both sides and the adjustment shaft 1 inside the fixed cylinder 2 respectively. It consists of 32 and 31.

On both sides of the U-shaped holding portion 50 of the support column 5, a vertical groove 51, which is opened from the upper side to the position of the center line of the fixed cylinder 2 and into which the first and second ring bolts 32 and 31 are inserted, and a lower end of the vertical groove 51. A lateral groove 52 opened from one side (rear side) is provided. In addition, on the outer surface of both sides, projections for radially preventing slip are provided around the inner part of the vertical groove 51.

The fixed cylinder 2 has elongated projections 23 engaged with the vertical grooves 51 on both ends, a large hole 21 on the lower side and a small hole 21 on the upper side formed on a straight line perpendicularly intersecting at the center of the center line. A hole 22 is provided. The large hole 21 has a size such that the first and second eccentric blocks 14 and 13 described later can penetrate therethrough, and the small hole 22 has a size such that the upper shaft portion of the second eccentric block 13 is loosely fitted.

The adjusting shaft 1 is provided with a first eccentric block 14 and two second eccentric blocks 13 provided in contact with both sides of the first eccentric block 14 in the middle of the vertical portion in the fixed cylinder 2. The second eccentric block 13 is eccentric in the same direction, and the eccentric directions of the first eccentric block 14 and the second eccentric block 13 are opposite directions.

Further, the upper end of the shaft portion is provided with an annular groove outside the fixed cylinder 2 to which a C-shaped snap ring 16 is attached, and the vertical position is regulated. Further, an enlarged portion 15 which is loosely fitted in the large hole 21 of the fixed cylinder 2 is provided on the lower side of the second eccentric block 13, and a handle 12 is provided on the lower end bent at a right angle.

The stopper 6 is provided so as to sandwich the saddle holding rod 7 in the lateral direction on the upper end side of the surface facing the U-shaped holding portion 50 and the hole 62 through which the first or second ring bolt 32, 31 passes. A long groove 61 is provided, and a radial anti-slip projection 63 is provided around the hole 62 on the surface facing the U-shaped holding portion 50.

The first ring bolt 32 has a single annular portion 321 provided at one end in the fixed cylinder 2 and a male screw threaded at the other end, and the second ring bolt 31 is provided at one end in the fixed cylinder 2. A male screw is threaded on the upper and lower annular portions 311 and 312 and the other end, which are doubly configured so that the annular portion 321 of the first ring bolt 32 is loosely fitted in the middle.

The hole diameters of these annular portions 321, 311 and 312 are the same as the large hole 21 of the fixed cylinder 2 and are of a size such that the first and second eccentric blocks 14 and 13 can penetrate therethrough.

The male threads of the first and second ring bolts 32 and 31 penetrate the hole 62 of the stopper plate 6 and are externally screwed into the screw holes 41 of the mounting ring 4 to form the outer surface of the U-shaped holding portion 50. The degree of tightening is adjustable. A non-slip ring 42 is fitted around the outer periphery of the mounting ring 4 so that it can be easily operated by hand.

The above-mentioned adjusting device may be used as the clamp means 9 for fixing the column 5 to the frame 8. In this case, the arms 91 on both sides of the clamp means 9 may be configured to correspond to the stopper plate 6 described above.

FIG. 4 shows another embodiment, in which the first and second ring bolts 32 and 31 in the fixed cylinder 2 described above are of different forms. In this form, the other end side of the first and second ring bolts 32a, 31a is a screw hole 41, and the opening end of the stopper plate 6a outside the hole 62a is a square counterbore for the square bolt 4a. The connection between the second ring bolts 32a, 31a and the clasp 6a is the same as the above case except that the square bolt 4a is used, and therefore the description thereof is omitted.

Next, how to use the above-mentioned adjusting device will be described. First, as shown in FIG. 2, the handle 12 is rotated in the clockwise direction until the horizontal portion of the adjusting shaft 1 is loosely inserted into the lateral groove 52. In this state, the first and second ring bolts 32 and 31 are moved outward by the first and second eccentric blocks 14 and 13, and the stopper 6 is in a loosened state.

In this state, after adjusting the inclination and front-back position of the saddle body 11, as shown in FIG. 3, the handle 12 is rotated until the adjustment shaft 1 is loosely inserted into the right lateral groove 52. In this state, the first and second ring bolts 32 and 31 are moved inward by the first and second eccentric blocks 14 and 13, and the clasp 6 is tightened.

It is needless to say that the mounting ring 4 is adjusted in advance so as to be completely tightened in the state shown in FIG.

The first and second ring bolts 32a, 31a of another form shown in FIG. 4 have exactly the same usage and will not be described.

[0029]

[Effect of device]

 As described above, by rotating the adjustment shaft 1 clockwise or counterclockwise with the handle 12, the stoppers 6 on both sides of the U-shaped holding portion 50 can be simultaneously loosened or tightened. After adjusting the tilt and the front-rear position of the saddle body 11, tightening is completed with one action.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a bicycle saddle adjusting device according to an embodiment of the present invention.

FIG. 2 is also a partially sectional view showing an open state.

FIG. 3 is a partial sectional view of the same in a tightened state.

FIG. 4 is a partial sectional view of another embodiment of the present invention in a tightened state.

[Explanation of symbols]

 1 Adjustment Axis 11 Saddle Body 13 Second Eccentric Block 14 First Eccentric Block 2 Fixed Cylinder 31 Second Ring Bolt 31a Second Ring Bolt 32 First Ring Bolt 32a First Ring Bolt 5 Strut 50 U-Shaped Holding Part 51 Vertical Groove 52 horizontal groove 6 stopper 6a stopper 61 long groove 7 saddle support rod

Claims (2)

[Scope of utility model registration request] 1. In a bicycle saddle fixing device, a pillar that is inserted into a bicycle frame and fixed by a clamp means, and has a U-shaped holding portion at its tip, and a U-shaped holding portion of the pillar. A fixed cylinder, which is inserted between both sides and has an adjusting shaft extending in a direction perpendicular to the axial direction, and two saddle-holding rods of the saddle body are respectively sandwiched between the two sides of the U-shaped holding portion. And a pair of first and second ring bolts that respectively connect the stoppers on both sides and the adjusting shaft inside the fixed cylinder, and both sides of the U-shaped holding portion of the column. Is provided with a vertical groove that is opened from the upper side to the position of the center line of the fixed cylinder and into which the first and second ring bolts are inserted, and a horizontal groove that is opened from one of the lower ends. The extending protrusions engaging the vertical groove on the upper sides of both ends and the middle The adjusting shaft comprises a lower large hole and an upper small hole formed on a straight line perpendicularly intersecting at an intermediate portion of the core wire, wherein the adjusting shaft is provided in the middle of the vertical portion in the fixed cylinder. One eccentric block, two second eccentric blocks provided on both sides of the eccentric block, an annular groove opened for mounting a C-shaped snap ring on the upper end outside the fixed cylinder, and the lower end of the vertical portion. The clasp includes an enlarged portion loosely fitted in the large hole and a handle provided at a tip bent downward at a right angle, and the clasp includes a hole through which the first or second ring bolt passes and the U A single annular portion provided at one end of the first ring bolt, and a long groove opened so as to sandwich the saddle holding rod laterally on the upper end side of the surface facing the character-shaped holding portion. And a male threaded portion that is threaded on the other end. The annular portion of the first ring bolt has a double structure such that the annular portion is loosely fitted in the middle, and male threads are provided at the other ends, and a mounting ring is screwed to these male threads. A bicycle saddle adjustment device characterized by: 2. The first and second ring bolts each have a screw hole at the other end thereof, and a square counterbore is provided at an outer opening end of the stopper hole, and the square bolts are connected to each other by square bolts. The bicycle saddle adjustment device according to claim 1, wherein the adjustment device is a bicycle saddle adjustment device.