JPH0930464A - Stand for bicycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stand for a bicycle capable of being used in common for multiple frames different in frame size by providing wear plates having recesses coinciding with the curved surface of the surface of a seat stay rotatably against a support plate or a fixed plate at a contact section with the seat stay. SOLUTION: A support plate 41 is provided from the front side, and a fixed plate 4 2 is provided from the back side to be suspended on a seat stay 1 and a chain stay 2 at the position apart forward from the rear wheel bearing section 9 of both stays 1, 2. The support plate 41 and fixed plate 42 are provided at the positions where recessed groove sections 46, 46 coincide with the chain stay 2 and wear plates 5, 5 coincide with the seat stay 1. The wear plates 5, 5 are made rotatable. When the attitudes of the recesses 51, 51 coincide with the attitude of the seat stay 1, the recesses 51, 51 are accurately brought into contact with the front side and back side of the surface of part of the seat stay 1. The support plate 41 and the fixed plate 42 are screwed by bolts 81 and nuts 82. Both stays 1, 2 are pinched by the support plate 41 and the fixed plate 42.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bicycle stand, and more particularly to a bicycle stand that is attached to a portion near the front of a rear wheel bearing portion of a seat stay and a chain stay.

[0002]

2. Description of the Related Art Usually, a bicycle stand (3) is attached to a bearing portion of a rear wheel. Then, in order to enhance the mounting strength of the stand (3), the stand (3) is engaged with a part of the seat stay (1) and the chain stay (2) in front of the bearing portion. However, in a so-called quick release type bicycle in which the rear wheel can be quickly attached and detached from the bearing portion, in order to facilitate the attachment and detachment of the rear wheel, the stand (3 ) Is attached.

This type of stand (3) is shown in FIGS.
As shown in, a support plate (41) that is attached from the front side across both stays and is continuous with the upper end of the stand foot (32),
The fixing plate (42) attached from the back side is screwed. Further, the contact portion of the support plate (41) and the seat stay (1) and the chain stay (2) on the fixed plate (42) is a concave groove portion having a semicircular cross section along the stay surface. Therefore, in the state where the support plate (41) and the fixed plate (42) are screwed together, the position of the support plate (41) does not shift.

On the other hand, when the frame size of the bicycle changes, the vertical pipe, seat stay (1), chain stay (2)
The size of the triangle formed by is changed. This changes the angle of inclination between the chain stay (2) and the seat stay (1). In this case, the thickness of the seat stay (1) does not change, but the inclination angles differ within a range of about 15 ° at the maximum.

[0005]

However, in this conventional technique, the inclination angle between the groove for the chain stay (2) and the groove for the seat stay (1) is constant. , If this tilt angle does not match the tilt angle between the chain stay (2) and the seat stay (1),
Even if one of the chain stay (2) or the seat stay (1) is fitted into one of the concave groove portions, the other stay and the concave groove portion are not fitted into each other. Therefore, the supporting force of the stand becomes insufficient.

Therefore, according to this conventional technique, a supporting plate (41) and a fixing plate adapted to each frame size of the bicycle are provided.
There was a problem that I had to make (42). The invention of claim 1 is made in view of such a point, and "a support plate (41) connected to a stand foot and a fixing plate (42) facing the support plate (42) are seat stays ( 1) and a bicycle stand that is attached to the front and back of the front portion of the rear wheel bearing part of the chain stay (2) and is screwed to each other '', common to multiple frames with different frame sizes. It is intended to provide a bicycle stand that can be used.

[0007]

[Means for Solving the Problems]

[Invention of Claim 1] The invention of Claim 1 is the "support plate (4
1) or a contact plate (5) having a concave portion (51) matching the curved surface of the seat stay (1) is provided at a contact portion of the fixed plate (42) with the seat stay (1). Provided this reliever
(5) is rotatably provided with respect to the support plate (41) or the fixed plate (42).

Seat stay (1) and chain stay (2)
On the other hand, when the support plate (41) and the fixed plate (42) are aligned at predetermined positions, the contact plate (5) is rotatable, so that the recess (5
1) corresponds to the surface of the seat stay (1). In this structure, since the contact plate (5) is rotatable, even if the inclination angle between the seat stay (1) and the chain stay (2) is different, the recess ( You can change the direction of 51). [Invention of Claim 2] According to the invention of Claim 2, in the invention of Claim 1 described above, "the contact plate (5) is a seat stay (1) in the supporting plate (41) and the fixing plate (42). It is provided at the contacting part with ".

In the state where the stand is attached, the seat stay (1) is provided with the pad plates (5) (5) from both sides thereof.
Due to this, it is in a state of being closely held. [Invention of Claim 3] In the invention of Claim 3 according to the invention of Claim 1 or 2, the "support plate (41) is attached to the front side of the seat stay (1) and the chain stay (2). And a fixing plate (42) is attached to the opposite side of the support plate (4).
1) and the fixing plate (42) are screwed together with a plurality of bolts. ”

The support plate (41) connected to the stand foot is attached to the front side of the seat stay (1) and the chain stay (2), and the fixed plate (42) is attached to the opposite side thereof. When this bicycle stand is viewed from the side of the bicycle, the stand foot and the support plate (41) are visually continuous in series. [Invention of Claim 4] The invention of Claim 4 is the same as the invention of any one of Claims 1 to 3, except that "the chain stay (2) in the supporting plate (41) and the fixing plate (42) is The contact portion is a groove along the surface of the chain stay (2). "

When the stand is attached, the chain stay (2) is attached to the support plate (41) from both sides of the chain stay (2).
And, it is in a state of being tightly held by the concave groove portion of the fixing plate (42).

[0012]

According to the invention of claim 1, the chain stay is
Since the direction of the backing plate (5) can be changed to match the inclination angle between the seat (2) and the seat stay (1), the inclination angle is common to frames of various sizes. I can wear one. Further, in this stand-mounted state, the recessed portion (51) of the backing plate (5) fits into the seat stay (1), so that the mounted state is stable.

In the invention of claim 2, the seat stay (1)
However, since it is in a state of being tightly held by the abutting plates (5) and (5) from both sides thereof, the attached state is further stabilized. According to the third aspect of the invention, the stand foot seen from the side of the bicycle and the support plate (41) are continuous in appearance, and the appearance is improved. According to the invention of claim 4, the chain stay (2) has the support plate (41) and the fixing plate (4) from both sides thereof.
Since the groove is closely held by the concave groove portion of 2), the above-mentioned mounted state is further improved.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, as shown in FIG. 3 and FIG. 4, the support plate (4
1) is attached from the front side of the seat stay (1) and the chain stay (2), and the fixing plate (42) is attached from the back side, so that the support plate (41) and the fixing plate (42 ) And are screwed with a plurality of bolts.

* Constitution of each part * The support plate (41) has a main body portion (40) having the same shape as the front shape (the shape facing the wheel) of the fixed plate (42), and the main body portion (40). 40) consists of an arm (31) that extends below, and this arm
A stand leg (32) is rotatably attached to the (31). On the main body portion (40) and the fixing plate (42) of the support plate (41), a concave groove portion (46) having a semicircular cross section for holding the chain stay (2) is formed in a substantially horizontal direction. The seat stay (1) is provided on the inner surface of the tip of the extension piece extending upward and rearward from the groove (46).
A backing plate (5) is provided which contacts the surface of the.

The abutting plate (5) comprises a disc portion (52), a shaft portion (53) protruding from one of the end faces, and a recess (51) formed on the opposite end face. The backing plate (5) is a support plate.
The shaft portion is provided in the through hole (47) formed in the extension piece of the main body portion (40) of (41) and the extension plate of the fixing plate (42).
(53) is penetrated and fixed by crimping. Therefore, the backing plate (5) is rotatable around the shaft portion (53).

The concave portion (51) of the backing plate (5) is formed along the diameter line of the end face of the backing plate (5), and the surface thereof is a seat stay.
The shape is set to match the surface of (1). Above support plate (4
1) and the fixing plate (42) are above and below the groove (46) and the contact plate.
It is screwed by a bolt (81) and a nut (82) near the lower part of (5). The screw-fastening portion above the concave groove portion (46) and the screw-fastening portion near the lower portion of the contact plate (5) are seat stay (1) when the stand is attached.
Located between and the chain stay (2).

Concave groove portion (46) in the fixing plate (42) and a backing plate
Reinforcing pieces (421) (421) projecting to the front side are formed on both side edges between the mounting part of (5) and the U-shaped channel part (43) whose cross-sectional shape is flat. ). Therefore,
The seat stay (1) is formed by the support plate (41) and the fixing plate (42).
When the chain stay (2) and the chain stay (2) are screwed in a sandwiched state, the channel portion (43) does not bend to the front side, and the sandwiching force does not decrease. Although not shown, the support plate (41)
Also, a similar reinforcing piece may be provided.

The concave groove portion with respect to the channel portion (43)
The mounting parts of (46) and the backing plate (5) are biased to the rear side. Therefore, in the screw state, the channel portion (43)
Is biased toward the front side (right side of the vehicle body) with respect to the seat stay (1) and the chain stay (2). Therefore, the bolt
The tip of (81) and nut (82) are on the rear side (wheel side) from the tangent line of the cross section of seat stay (1) and chain stay (2).
Does not stick out.

A locking piece (48) is formed at the front end of the grooved portion (46) of the support plate (41) so as to be bent rearward along the surface of the chain stay (2). The engagement between the locking piece (48) and the chain stay (2) causes relative rotation with respect to the chain stay (2) acting on the support plate (41), that is, the arm portion (3
Relative rotation is prevented when a couple of forces that 1) moves rearward is applied.

The stand leg (32) is rotatably supported by the lower part of the arm part (31), and the lower part of the rotation fulcrum of the stand leg (32) and the rotation of the arm part (31). A tension spring (35) is interposed between the fulcrum and the upper part of the fulcrum. The stand foot (32) is configured to rotate along the back surface of the arm portion (31), and a stopper (37) protruding toward the back surface is provided at the front edge portion of the arm portion (31). Has been. The state where the stopper (37) and the lower vicinity of the fulcrum of the stand foot (32) are in contact with each other is the state in which the stand foot (32) is upright, and the tension spring (35) is It is set to pass through the front area.

Therefore, when the stand foot (32) is in the upright position, the stand foot (32) is urged by the urging force of the tension spring (35).
Is maintained in a substantially upright state and is forcibly rotated rearward, the stand foot (32) falls to a substantially horizontal position with the tension spring (35) positioned behind the fulcrum. Maintained. Also, the arm portion (31) is configured to be obliquely bent to the front side with respect to the main body portion (40), and from the rear portion near the lower portion of the recessed groove portion (46) to the upper end portion of the arm portion (31). Reinforcing ribs extending to the front side are formed to project. This allows the stand foot (3
The bending portion of the arm portion (31) is prevented from being deformed in the state where the arm member (2) is upright.

* About the actual installation * When mounting the stand (3) with the above structure to the bicycle frame, move it forward from the rear wheel bearing (9) of the seat stay (1) and the chain stay (2). At the position, the support plate (41) from the front side so as to be hung on both of these stays.
However, the fixing plate (42) is attached from the back side. The position where the support plate (41) and the fixed plate (42) are attached is the groove portion (46).
(46) is a position where the chain stay (2) and the contact plates (5), (5) are aligned with the seat stay (1). Since the backing plates (5) (5) are rotatable, the postures of the recesses (51) (51) are
When the posture of (1) is matched, these recesses (51) and (51) accurately contact the front side and the back side of a part of the surface of the seat stay (1).

After that, the support plate (41) and the fixed plate (42) are the bolts (81) (81) penetrating from one support plate (41) side and the rear side of the other fixed plate (42). It is screwed on by nuts (82) (82). As a result, the two stays are clamped by the support plate (41) and the fixed plate (42). That is, the stand (3) is fixed to the frame. Chainstay (2)
In the case of a frame in which the inclination angle between the seat stay (1) and the seat stay (1) is different, as shown in FIG. 5, the recessed grooves (46) (46) are attached to the chain stay (2) and the contact plates (5) (5) ) So that the recesses (51) (51) of () are aligned with the seat stay (1).
Move the attachment position of 2) (state of the two-dot chain line in the figure). At this time, when the contact plates (5) (5) are rotationally adjusted, the recesses
(51) (51) and the surface of the seat stay (1) are aligned. In this case, since the contact plate (5) is rotatable, even if the inclination angle between the seat stay (1) and the chain stay (2) is different, the recess (51 ) Direction can be changed.

In the above embodiment, the backing plate (5) is provided on both the support plate (41) and the fixed plate (42), but it may be provided on only one of them. The contact plate (5) is caulked to the support plate (41) and the fixed plate (42), but the shaft portion (53) penetrating the through hole (47) is secured by a retaining ring such as an E ring. It may be engaged.

[Brief description of drawings]

FIG. 1 is a front view of a stand fixture according to a conventional example.

[Figure 2] Side view of the main part of this

FIG. 3 is a front view of a stand attaching tool according to the embodiment of the present invention.

FIG. 4 is a side view of the main part of this.

FIG. 5 is an explanatory diagram of how this is attached.

[Explanation of symbols]

 (41) ・ ・ ・ Support plate (42) ・ ・ ・ Fixing plate (1) ・ ・ ・ Seat stay (2) ・ ・ ・ Chain stay (5) ・ ・ ・ Abutment plate (51) ・ ・ ・ Concave

Claims (4)

[Claims] 1. A support plate (41) connected to a stand leg,
In a bicycle stand in which the fixing plate (42) facing this is attached to the front and back of the front vicinity of the rear wheel bearing portion of the seat stay (1) and the chain stay (2) and screwed to each other. The supporting plate (41) or the fixing plate (42) is provided with a concave plate (51) which is in contact with the seat stay (1) on the curved surface of the seat stay (1). A bicycle stand in which (5) is provided, and the contact plate (5) is rotatably provided with respect to the support plate (41) or the fixed plate (42). 2. The backing plate (5) includes a support plate (41) and a fixing plate (4).
The bicycle stand according to claim 1, wherein the bicycle stand is provided at a portion facing the seat stay (1) in (2). 3. The supporting plate (41) is attached to the front side of the seat stay (1) and the chain stay (2), and the fixing plate (42) is attached to the opposite side of the supporting plate (41). ) And fixing plate (4
2) and are screwed together with a plurality of bolts.
Or the bicycle stand according to 2. 4. The support plate (41) and the fixed plate (42), the contact portion with the chain stay (2) is a concave groove portion along the surface of the chain stay (2). The bicycle stand according to any one of 1.