JPH0247105Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a bicycle saddle, and particularly relates to an improvement in the mounting structure between a boat line and a saddle base.

(Prior Art) As shown in FIGS. 4 and 5, the applicant previously
A block-shaped retaining piece 3 is formed on the lower surface of the nose of the saddle base 1, and a hook-shaped holding piece 4 is formed opposite to the retaining piece, and a boat line holding space 5 is formed between both pieces 4 and 5. proposed a bicycle saddle in which a bent tip 71 of a boat line was fitted (Jetko Publication No. 50-34458).

In the above-mentioned saddle, the holding piece 4 curves the base part 41 to one side at a position below the retaining piece, and the tip part 4
An insertion opening 6 that opens toward the rear of the saddle is formed between the inner surface of the holding piece 2 and the retaining piece 3, and a boat line holding space 5 is formed between the base of the holding piece 4 and the retaining piece 3.

To attach the boat line to the saddle base, the tip 71 of the boat line 7 is pressed against the insertion opening 6 using a press, and the tip 71 is fitted into the boat line holding space 5 while opening the opening.

When the tip 71 of the boat line 7 passes through the insertion opening 6, the holding piece 4 returns to its original shape, and the width of the insertion opening becomes smaller than the wire diameter of the boat line, thereby preventing the boat line from slipping out.

Both ends of the boat line 7 are supported by the saddle base 1 via a spring 72 or directly.

(Problem to be Solved) In the above case, the retaining piece 3 and the holding piece 4 are formed thick to prevent the boat line from escaping, and are made so as not to be easily elastically deformed.

In order to prevent the boat line from coming out, the narrower the insertion opening is, the better, but there is a contradictory problem in that the narrower the opening, the more difficult it becomes to insert the boat line. The opening width of 4 mm is the minimum opening size that can be compromised among the above contradictions, and the opening cannot be narrowed any further. Therefore, the test results show that when a tensile force (approximately 45 kg) was applied to pull the boat line 7 toward the insertion opening 6, the tip of the boat line pushed the opening apart and separated from the holding space 5.

During normal riding of a bicycle, the boat line 7 is held in the space 5.
Almost no pulling force acts on the insertion opening 6 from the
There is no risk of the boat line coming off, but if you ride while changing gears, for example if you jump onto the saddle from behind, a pulling force will act on the tip of the boat line toward the rear, causing the tip of the boat line to be held down. There was a risk that the piece would be deformed and detached from the holding space 5.

(Means for Solving the Problems) The present invention reveals a bicycle saddle in which the retaining piece can be deformed, and the boat line can be easily inserted into the boat line holding space 5, but cannot be removed.

In the bicycle saddle of the present invention, the proximal end 31 of the retaining piece protrudes downward from the back side of the saddle base 1, and the tip 32 of the proximal end is bent at a substantially right angle toward the holding piece 4.
The width of the insertion opening 6 formed between the tip 32 of the retaining piece and the tip 42 of the holding piece 4 is made smaller than the wire diameter of the boat wire 7, and slits 8, 8 are provided on both sides of the base end. This makes the retaining piece 3 deformable.

(Operation and Effect) The width of the insertion opening is smaller than the diameter of the boat wire, but
The retaining piece 3 and the holding piece 4 are deformed.

Therefore, the width of the insertion opening 6 formed by the retaining piece 3 and the holding piece 4 is formed to be much smaller than the wire diameter of the boat line 7, and the tip of the boat line is held facing the insertion opening. When pressed toward the space 5, the insertion opening 6 is easily pushed open and the tip of the boat line is fitted into the holding space 5.

When the tip of the boat line passes through the insertion opening 6, the retaining piece 3 elastically returns, and the insertion opening width returns to its original shape.

While the bicycle is running, a strong external force in the vertical direction acts on the saddle, but since the insertion opening for the boat line is open toward the rear of the saddle, the front end 71 of the boat line is inserted into the tip 42 of the holding piece 4. If it hits you, it will prevent you from leaving.

Also, even if you jump on the saddle and apply a tension force to pull the tip of the boat line toward the insertion opening as described above,
The insertion opening width is sufficiently small compared to the wire diameter of the boat wire.
In addition, even though the distal end surface of the retaining piece 3 hits the boat line 7 and pulls the boat line 7, no force is applied in the direction of expanding the insertion opening 6, so that the tip of the boat line does not move away from the holding space. It never comes off.

(Example) The bicycle saddle of the example has a hole in the front part of the saddle base 1 made of synthetic resin with a width slightly smaller than the width of the bent tip 71 of the boat line 7 and a length that is approximately the same as the wire diameter of the boat line 7. Hole 2 has been opened.

At the rear edge of the hole, a base end 31 of a retaining piece 3 is provided to protrude downward from the back surface of the saddle base, and a front edge 32 of the retaining piece 3 is bent at a substantially right angle and protrudes forward.

Opposed to the front of the retaining piece 3, a presser piece 4 protrudes downward to the back surface of the saddle base, and the presser piece 42
The distal end of the base 41 is bent toward the retaining piece 3 at a position further below the front edge 32 of the retaining piece 3, so that the cross-sectional shape is L-shaped.

A boat line holding space 5 is formed between the tip 42 of the holding piece 4 and the saddle base 1, and a gap smaller than the wire diameter of the boat line 7 is formed between the tip 42 of the holding piece 4 and the retaining piece 3. A boat line insertion opening 6 is formed.

In the embodiment, the wire diameter of the boat line 7 is 6.5 mm, and the opening width of the insertion opening 6 is approximately 2 mm.

Slits 8, 8 communicating with the holding space 5 are provided on both sides of the base end and front edge of the retaining piece 3.

Further, as shown in FIG. 2, a cushion material 9 is attached to the saddle base 1, and a saddle cover 9 is attached from above.
The circumferential edge of the cover wraps around the outer circumferential edge of the saddle base 1 and is fixed on the inside.

When assembling the saddle, when securing the boat line 7 to the saddle base 1, the tip of the boat line is placed against the lower surface of the retaining piece 3, and the tip is pushed into the insertion opening 6 using a press.

The width of the insertion opening 6 is one third of the wire diameter of the boat wire.
Although the retainer piece 3 is relatively small, the retainer piece 3 is formed thinner than the example shown in FIG. do.

Therefore, even if the width of the insertion opening 6 formed by the retaining piece 3 and the holding piece 4 is reduced to about one third of the wire diameter of the boat line 7 as in the embodiment, the tip of the boat line By pressing the insertion opening 6 toward the holding space 5, the insertion opening 6 is easily expanded, and the tip of the boat line is fitted into the holding space 5.

When the tip of the boat line passes through the insertion opening, the retaining piece elastically returns, the insertion opening width returns to its original shape, and the boat line 7
is prevented from leaving the holding space 5.

Both rear ends of the boat line 7 are attached to the saddle base 1 via springs 72 in the same manner as in the conventional example shown in FIG.

The saddle is fixed to a saddle post 74 via a turret fitting 73 attached to the center of the boat line 7.

While the bicycle is running, a strong vertical external force acts on the saddle, but since the insertion opening of the boat line faces backward, the front end 71 of the boat line is supported by the tip 42 of the holding piece 4 and removed. is prevented.

Furthermore, even if a tensile force is applied to the tip of the boat line toward the insertion opening by jumping on the saddle, the width of the insertion opening is sufficiently small compared to the wire diameter of the boat line, and The boat line only presses the end face of the front edge 32 of the retaining piece 3 toward the rear, and no force is applied in the direction of widening the opening 6, so the tip of the boat line does not come off from the holding space.

The fitting strength of the boat lines was tested.

For the five bicycle saddles according to the present invention, first, a boat line was fitted into each one, and then a tensile force was applied to the boat line diagonally downward at an angle of 45 degrees from the horizontal plane of the saddle.
The critical tensile force at the time of escape of the boat line was recorded.

The critical tensile force for each of the five saddles is 105,
105, 121, 130Kg (average 116Kg) However, the wire diameter of the boat line is 6.5mm, the insertion opening width is 2mm,
The slit has a width of 1.3 mm and a length of 6 mm, and the retaining piece 3 has a width of 6.5 mm, a thickness of 4 mm, and a length of 6 mm.

When the same test is performed on Applicant's conventional saddle using the same boat line, the critical tensile force is 40-50Kg.
It was hot. However, the opening width is 4.5mm.

As is clear from the above experiments, the critical tensile force of the boat line in the saddle of the present invention is approximately three times higher than that of the conventional saddle, and the safety is greatly improved.

The present invention is not limited to the configuration of the above-described embodiments, and various modifications can be made within the scope of the claims for utility model registration.

[Brief explanation of the drawing]

Figure 1 is a bottom view of the saddle, Figure 2 is Figure 1-
3 is a sectional view taken from below of the nose of the saddle base; FIG. 4 is a sectional view of the attachment point between the tip of the boat line and the saddle base in a conventional example;
FIG. 5 is a longitudinal sectional view showing how the saddle of FIG. 4 is inserted. 1... Saddle base, 3... Retaining piece, 4...
Holding piece, 5... Holding space, 6... Insertion opening, 7...
...Fune Line, 8... Slits.

Claims (1)

[Claims for Utility Model Registration] A retaining piece 3 is provided on the lower surface of the nose of the base 1, and a retaining piece 4 is provided in front of the retaining piece, and the retaining piece 4 holds the tip of the base 41 further below the retaining piece 3. At the position, it is bent to one side to prevent it from coming out, and the tip of the presser piece 42
An insertion opening 6 that opens rearward between the retaining piece 3 and the retaining piece 3 is formed, and the holding piece base 41
In a bicycle saddle in which the front edge 71 of the boat line 7 is locked in the boat line holding space 5 formed between the retaining piece 3 and the retaining piece 3, the retaining piece 3 moves from the back of the base to the base 3.
1 protrudes, the tip of the base is bent at a substantially right angle toward the retaining piece, and the insertion opening 6 of the boat line is formed between the front edge 32 of the retaining piece 3 and the presser piece 4,
Slits 8, 8 communicating with the boat line holding space 5 are provided on both sides of the base side of the retaining piece 3, and the retaining piece 3
A bicycle saddle that can be elastically deformed when facing backwards. The wire diameter of the boat line is approximately 6.5 mm, and the insertion opening width is approximately 2 mm.
A bicycle saddle according to claim 1 of the utility model registration claim.