JP4162254B1 - Bicycle handle - Google Patents

Abstract

Provided is a bicycle handle that can rotate a handlebar by 90 ° with a simple operation and prevent intrusion of rainwater and the like.
In a bicycle handle, first and second assembly pins are arranged so that an outer pipe can slide up and down and an upper stem can rotate by 90 ° along the circumferential direction of the outer pipe. _1, 60 ₂ the outer pipe 30 and inner pipe 40 to the outer and inner pipe portions of the upper stem 10 by are respectively attached. Further, the outer pipe 30 and the inner pipe are arranged outside and inside the lower stem 20 by the third and fourth assembly pins 60 ₃ and 60 ₄ so that the outer pipe 30 can slide up and down and the inner pipe 40 is fixed. 40 are respectively attached. A coil spring 50 for urging the outer pipe 30 downward is attached to the upper end of the pipe portion of the upper stem 10.
[Selection] Figure 1

Description

  The present invention relates to a bicycle handle, and more particularly to a bicycle handle suitable for smoothly inserting and removing a bicycle even when other bicycles are parked on both sides in a bicycle parking lot.

  Conventionally, when a bicycle is taken in and out in a crowded bicycle parking lot, the handlebar can be rotated 90 degrees to solve the problem that the handlebar is caught on the handlebar of the adjacent bicycle and cannot be smoothly put in and out. A handle has been proposed.

For example, in Patent Document 1 below, a handlebar, a first vertical pipe suspended from the center of the left and right of the handlebar, and a front fork foot that is externally fitted to the lower portion of the first vertical pipe and that holds the front wheel A second vertical pipe connected, the first vertical pipe and the second vertical pipe are rotatably fitted to each other, and the first vertical pipe is in an operating state position and 90 relative to the second vertical pipe. A bicycle handle provided with a stopper mechanism for releasably fixing at a rotational position is disclosed.
Japanese Patent Laid-Open No. 10-236370

However, in the bicycle handle disclosed in Patent Document 1, when the handlebar is rotated by 90 °, the driver pushes the lower part of the rear wall of the outer casing portion after removing the swinging locking member. And the rear wall of the outer casing portion presses the locking portion and the short shaft portion is pulled rearward so that the tip of the short shaft portion is detached from the first locking female portion of the first vertical pipe. Therefore, it is necessary to provide a longitudinal slit on the rear wall of the outer casing portion so that the swinging operation of the outer casing portion is not obstructed. For this reason, when rainwater or the like enters the inner casing from the vertically long slit, there is a problem that the elastic member provided between the inner casing portion and the outer casing portion and pressing the short shaft portion forward is corroded.
In addition, since the handlebar is fixed so as not to rotate by one short shaft portion, there is a problem that the handlebar rotates 90 ° in the event that the short shaft portion is damaged during operation.
Furthermore, since the short shaft portion is pressed forward by the elastic member, the handle bar can be rotated 90 ° in the event that the locking portion provided on the short shaft portion is broken and removed. There is a problem of disappearing.

  An object of the present invention is to provide a bicycle handle that can rotate a handlebar by 90 ° with a simple operation and can prevent intrusion of rainwater and the like.

The bicycle handle of the present invention includes a stem portion for fixing the handlebar (2), an upper stem (10) provided with a cylindrical pipe portion suspended from the bottom surface of the stem portion, and a lower end side. A cylindrical lower stem (20) having a portion that is fitted and fixed to the stem receiver (4) and having the same diameter as the pipe portion of the upper stem, a cylindrical outer pipe (30), and a cylinder A pipe-shaped inner pipe (40), an outer pipe biasing means (11, 31, 50) provided at the upper end of the pipe portion of the upper stem and for biasing the outer pipe downward, a first To fourth assembly pins (60 _{1 to} 60 ₄ ), the outer pipe being slidable up and down, and the upper stem being rotatable by 90 ° along the circumferential direction of the outer pipe. Outside the pipe portion of the upper stem by the first and second assembly pins The outer pipe and the inner pipe are respectively attached to the inner and outer sides, and the lower stem is fixed by the third and fourth assembly pins so that the outer pipe can be slid up and down and the inner pipe is fixed. The outer pipe and the inner pipe are respectively attached to the outer side and the inner side.
Here, first and second upper stem through holes (12 ₁ , 12 ₂ ) for penetrating the pin portion of the first assembly pin laterally through the pipe portion of the upper stem, and the second The third through fourth upper stem through holes (12 _3, 12 ₄ ) for penetrating the pin portion of the assembly pin in the lateral direction are formed, and the lower stem is provided with the third assembly pin. First and second lower stem through holes (22 ₁ , 22 ₂ ) for penetrating the pin portion laterally, and third and second for penetrating the pin portion of the fourth assembly pin laterally 4 lower stem through holes (22 ₃ , 22 ₄ ) are formed, the pin portion of the first assembly pin is passed through the outer pipe in the lateral direction, and the outer pipe can be slid up and down. A vertically long portion and the upper stem are made to extend along the circumferential direction of the outer pipe. And ° the first and second L-shaped hole made of the lateral section for causing the slidable (32 _1, 32 _2), the outer pipe with pass through the pin portion of the second assembly pin laterally Third and fourth L-shaped holes (32 ₄ , 32) each having a vertically long portion for allowing vertical sliding and a horizontally long portion for allowing the upper stem to slide 90 ° along the circumferential direction of the outer pipe. and _4), the first and second elongated holes for causing the slidable outer pipe up and down with the passing the pin portion of the third assembly pin in the transverse direction (33 _1, 33 _4), the Third and fourth vertically long holes (33 ₃ , 33 ₄ ) are formed for penetrating the pin portion of the fourth assembly pin in the lateral direction and allowing the outer pipe to slide up and down. The first assembly pipe is connected to the inner pipe. A first and second oblong holes for causing the pin portion the on stem causes penetrate laterally to allow 90 ° slides along the circumferential direction of the inner pipe (41 _1, 41 _2), said first Third and fourth elongated holes (41 ₃ , 41 ₄ ) for penetrating the pin portions of the two assembly pins laterally and allowing the upper stem to slide by 90 ° along the circumferential direction of the inner pipe The first and second inner pipe through holes (42 ₁ , 42 ₂ ) for penetrating the pin portion of the third assembly pin in the lateral direction, and the pin portion of the fourth assembly pin in the lateral direction Third and fourth inner pipe through holes (42 ₃ , 42 ₄ ) may be formed.
The lower stem inner surface of the pipe portion of the upper stem may be an inclined surface having an inclination angle of 45 °, and the upper outer surface of the lower stem may be an inclined surface having an inclination angle of 45 °.
A safety plate (80) having a rectangular plate-like flat plate portion and a protrusion provided at one end of the flat plate portion, and between the heads of the third and fourth assembly pins and the safety device bracket, respectively. The first and second coil springs (51 ₁ , 51 ₂ ) inserted therein are further provided, and the pin portions of the third and fourth assembly pins are penetrated laterally in the flat plate portion of the safety device bracket, respectively. First and second safety device metal fitting through holes (81 ₁ , 81 ₄ ) and a stopper (82) are formed, and a locking hole (with which the stopper is engaged with the outer pipe) 34) may be formed.
A fixing bolt (71), a disc-shaped bolt receiving flat washer (72) having a through-hole for vertically passing through the threaded portion of the fixing bolt in the center, and a threaded portion of the fixing bolt; A trapezoidal vertical fixed taper piece (73) in which screw holes to be screwed are formed from the upper surface to the bottom surface, and a lower end of the lower stem is in contact with a side surface of the fixed taper piece; A plurality of recesses (21 _{1 to} 21 ₄ ) for mounting the bolt receiving flat washers are formed below the third and fourth lower stem through-holes, and at the lower end of the lower stem, The enlargement notches (23 ₁ , 23 ₂ ) may be formed.

The bicycle handle of the present invention has the following effects.
(1) The first and second assembly pins allow the outer pipe to slide up and down, and the upper stem can be rotated 90 ° along the circumferential direction of the outer pipe. Attaching the pipe and the inner pipe respectively, and attaching the outer pipe and the inner pipe to the outside and the inside of the lower stem by the third and fourth assembly pins so that the outer pipe can slide up and down and the inner pipe is fixed Therefore, the handlebar can be rotated by 90 ° by rotating the upper stem by 90 ° along the circumferential direction of the outer pipe after lifting the outer pipe during parking.
(2) The pipe portion of the upper stem is formed only with the first to fourth upper stem through holes for penetrating the pin portions of the first and second assembly pins in the lateral direction, and the lower stem has Since only the first to fourth lower stem through-holes for penetrating the pin portions of the third and fourth assembly pins in the lateral direction are formed, rainwater or the like is provided in the first to fourth L-shapes of the outer pipe. Even if it invades from the shaped hole and the first to fourth vertically long holes, the upper stem and the lower stem prevent rainwater and the like from entering the gap between the upper stem and the lower stem and the inner pipe and the inner pipe. be able to.
(3) Since the outer pipe and the inner pipe are respectively attached to the outer side and the inner side of the pipe portion of the upper stem by the first and second assembly pins, either one of the first and second assembly pins is damaged. In addition, it is possible to prevent the handlebar from rotating 90 ° during operation.

Embodiments of a bicycle handle according to the present invention will be described below with reference to the drawings.
As shown in FIG. 1, a bicycle handle 1 according to an embodiment of the present invention includes a handlebar 2, an upper stem 10, an upper stem flat washer 11, a lower stem 20, an outer pipe 30, and an outer pipe flat. a washer 31, an inner pipe 40, a coil spring 50, ₂ and the first and second coil springs 51 _1, 51, the first to fourth and assembly pin 60 _6O4, the first to fourth a split pin 61 _{1-61 4} comprises a fixing bolt 71, the bolt receiving flat washer 72, and a fixed tapered piece 73, and a safety device bracket 80.

Here, the upper stem 10 includes a stem portion for fixing the handlebar 2 and a pipe portion suspended from the bottom surface of the stem portion.
In the following description, for the sake of simplicity, the longitudinal direction of the pipe portion of the upper stem 10 is defined as the longitudinal direction (vertical direction), and the direction perpendicular to the longitudinal direction of the pipe portion of the upper stem 10 is defined as the lateral direction (left and right). Direction). The handlebar 2 side is the upper side.

Both the pipe portion and the lower stem 20 of the upper stem 10 have a cylindrical shape, and the outer diameter and inner diameter of the pipe portion of the upper stem 10 and the outer diameter and inner diameter of the lower stem 20 are the same. Further, as shown in FIGS. 2A and 2B, the inner surface at the lower end of the pipe portion of the upper stem 10 is an inclined surface having an inclination angle of 45 °, and the upper end outer surface of the lower stem 20 is 3 (a) and 3 (b), the inclined surface has an inclination angle of 45 °.
As a result, as shown in FIG. 1, the inclined surface of the lower stem 20 and the inclined surface of the pipe portion of the upper stem 10 are in close contact with each other so as to spread toward the ground at an inclination angle of 45 °. Since the lower stem 20 can be connected, it is possible to prevent rainwater or the like from entering the pipe portion of the upper stem 10 and the lower stem 20 to corrode the pipe portion of the upper stem 10 and the lower stem 20. it can.

The outer pipe 30 has a cylindrical shape. Further, when the bicycle handle 1 is assembled, there is a slight gap between the inner peripheral surface of the outer pipe 30 and the pipe portion of the upper stem 10 and the outer peripheral surface of the lower stem 20 so that the vertical movement of the outer pipe 30 goes smoothly. The inner diameter of the outer pipe 30 is slightly larger than the outer diameter of the pipe portion of the upper stem 10 and the lower stem 20 so that a gap is formed.
The inner pipe 40 has a cylindrical shape. Further, when the bicycle handle 1 is assembled, the outer diameter of the inner pipe 40 is such that a slight gap is formed between the outer peripheral surface of the inner pipe 40 and the pipe portion of the upper stem 10 and the inner peripheral surface of the lower stem 20. Is slightly smaller than the inner diameter of the pipe portion of the upper stem 10 and the lower stem 20.

,
As shown in FIG. 1, the length of the pin portion of the first assembly pin 60 ₁ is such that a washer (first and second assembly pins 60 is provided between the head of the first assembly pin 60 ₁ and the outer pipe 30. ₁ and 60 ₂ are inserted into each other, and the pin portion of the first assembly pin 60 ₁ is inserted into the outer pipe 30, the pipe portion of the upper stem 10 and A plate in which two through-holes for passing through the first and second assembly pins 60 ₁ and 60 ₂ are formed between the inner pipe 40 and the outer pipe 30 after passing through the inner pipe 40 in the lateral direction. the first assembly pin 60 ₁ a first of the two washers when fixed by split pins 61 ₁ has a length such as to be in close contact with the outer peripheral surface of the outer pipe 30 through the Jo ones).
The second assembly pin 60 ₂ is the same as the first assembly pin 60 ₁ .
The length of the pin portion of the third assembly pin 60 _3, by inserting _a first coil spring 51 between the third assembly pin 60 ₃ of the head and safety equipment fittings 80 as shown in FIG. 1 the third assembly pin 60 ₃ pin safety device bracket 80, the outer pipe 30, a washer between the outer pipe 30 in the mixture was allowed to penetrate the lower stem 20 and the inner pipe 40 in the horizontal direction (the third and fourth When the third assembly pin 60 ₃ is fixed by the _third split pin 61 ₃ via a plate-like member having two through holes for allowing the assembly pins 60 ₃ and 60 ₄ to pass therethrough, respectively. Further, the safety device fitting 80 is urged toward the outer pipe 30 by the first coil spring 51 ₁ so that the safety device fitting 80 and the washer are in close contact with the outer peripheral surface of the outer pipe 30.
The fourth assembly pin 60 ₄ is the same as the third assembly pin 60 ₃ .
The pin portions of the _{first to} fourth assembly pins 60 _{1 to} 60 ₄ have a cylindrical shape, and the diameters of the pin portions of the _{first to fourth} assembly pins 60 _{1 to} 60 ₄ are the same.

The pipe portion of the upper stem 10, FIG. 2 (a), (b) as shown in the first and second upper stem through for passing the first pin portion of the assembly pin 60 ₁ in the transverse direction Holes 12 ₁ and 12 ₂ and third and fourth upper stem through holes 12 ₃ and 12 ₄ for penetrating the pin portion of the second assembly pin 60 _{2 in} the lateral direction are formed.
The first and third upper stem through-holes 12 ₁ and 12 ₃ are formed in a vertical line separated by a distance L, and the second and fourth upper stem through-holes 12 ₂ and 12 ₄ are also spaced by a distance L. Are separated from each other by a single vertical line.
Further, when the first to fourth upper stem through holes 12 _{1 to} 12 ₄ are penetrated, the pin portions of the first and second assembly pins 60 ₁ and 60 ₂ are in close contact with the pipe portion of the upper stem 10. In addition, the shape of the opening surface of the _first to _fourth upper stem through-holes 12 _{1 to} 12 ₄ is circular (see FIG. 2B), and the first to fourth upper stem through-holes The diameters 12 _{1 to} 12 ₄ are the same as or slightly smaller than the diameters of the pin portions of the first and second assembly pins 60 ₁ and 60 ₂ . Therefore, the first assembly pin 60 ₁ is press-fitted to pass through the first and second upper stem through holes 12 ₁ and 12 ₂ , and the second assembly pin 60 ₂ is also press-fitted to the third and fourth upper pins. The stem through holes 12 ₃ and 12 ₄ are penetrated.

As shown in FIGS. 3A and 3B, the lower stem 20 has first and second lower stem through holes 22 ₁ for penetrating the pin portion of the third assembly pin 60 _{3 in} the lateral direction. 22 ₂ and third and fourth lower stem through holes 22 ₃ , 22 ₄ for penetrating the pin portion of the fourth assembly pin 60 _{4 in} the lateral direction.
Further, the first and third lower stem through holes 22 ₁ and 22 ₃ are formed in a vertical line separated by a distance L, and the second and fourth lower stem through holes 22 ₂ and 22 ₄ are also spaced by a distance L. Are separated from each other by a single vertical line.
Further, the first and fourth lower stem through holes 22 _{1 to} 22 ₄ are penetrated so that the pin portions of the third and fourth assembly pins 60 ₃ and 60 ₄ are in close contact with the lower stem 20. The shapes of the opening surfaces of the _{first to} fourth lower stem through holes 22 _{1 to} 22 ₄ are circular (see FIG. 3B), and the first to fourth lower stem through holes 22 ₁ to 22 ₁ to The diameter of 22 ₄ is the same as or slightly smaller than the diameter of the pin portions of the third and fourth assembly pins 60 ₃ and 60 ₄ . Accordingly, the third assembly pin 60 ₃ is press-fitted so as to pass through the first and second lower stem through holes 22 ₁ , 22 ₂ , and the fourth assembly pin 60 ₄ is also press-fitted to cause the third and fourth lower holes to be inserted. The stem through holes 22 ₃ and 22 ₄ are penetrated.

As shown in FIGS. 4A and 4B, the outer pipe 30 includes first to fourth L-shaped holes 32 _{1 to} 32 ₄ and first to fourth vertically long holes 33 _{1 to} 33 ₄ . A locking hole 34 is formed.

The first L-shaped hole 32 ₁ has a vertically long portion that allows the pin portion of the first assembly pin 60 ₁ to penetrate in the lateral direction and allows the outer pipe 30 to slide up and down, and the upper stem 10 to the outer pipe. It is composed of a horizontally long portion for allowing 90 ° sliding along 30 circumferential directions. Further, the first L is arranged so that it does not move along the circumferential direction of the outer pipe 30 when the pin portion of the first assembly pin 60 ₁ is positioned above the vertically long portion of the _first L-shaped hole 32 _1. The height (vertical length) of the vertically long portion of the character-shaped hole 32 ₁ is longer (preferably twice) than the diameter of the pin portion of the first assembly pin 60 ₁ , and the first L-shape type holes 32 ₁ of the elongated section of width (lateral length) is substantially the same as the diameter of the first pin portion of the assembly pin 60 _1. Further, the width of the laterally long portion of the first L-shaped hole 32 ₁ (the length along the circumferential direction of the outer pipe 30) is set to approximately ¼ of the outer circumference of the outer pipe 30, and the first L-shaped hole The height of the horizontally long portion of the shaped hole 32 ₁ is substantially the same as the diameter of the pin portion of the first assembly pin 60 ₁ .
The second L-shaped hole 32 ₂ has the same shape as the _first L-shaped hole 32 ₁ , but the vertically long portion and the horizontally long portion of the _second L-shaped hole 32 ₂ are the first L-shaped holes. The vertically long portion and the horizontally long portion of the character-shaped hole 32 ₁ are formed so as to face each other.
The third and fourth L-shaped holes 32 ₃ and 32 ₄ have the same shape as the first and second L-shaped holes 32 ₁ and 32 ₂ and are formed to face each other.
The first and third L-shaped holes 32 ₁ and 32 ₃ are separated from each other by a distance L and are formed in a vertical line, and the second and fourth L-shaped holes 32 ₂ and 32 ₄ are only spaced by a distance L. They are separated and formed in a vertical row.

The first vertically long hole 33 ₁ has a first to fourth L-shaped height so as to penetrate the pin portion of the third assembly pin 60 _{3 in} the horizontal direction and allow the outer pipe 30 to slide up and down. The vertical holes 32 _{1 to} 32 _{4 have} the same height as the vertically long portions, and the widths are the same as the widths of the first to fourth L-shaped holes 32 _{1 to} 32 ₄ .
The second longitudinal hole 33 ₂ has a first same shape as the vertically long holes 33 ₁ are formed so as to face each other with _one first longitudinal bore 33.
The third and fourth vertically long holes 33 ₃ and 33 ₄ have the same shape as the first and second vertically long holes 33 ₁ and 33 ₂ and are formed to face each other.
The first and third longitudinal hole 33 _1, 33 ₃ with are formed in tandem are separated by a distance L, the second and fourth longitudinal bore 33 _2, 33 ₄ are separated by a distance L Vertical It is formed in a row. The first and third vertical holes 33 ₁ , 33 ₃ are formed in a vertical line with the vertical portions of the first and third L-shaped holes 32 ₁ , 32 ₃ , and the second and fourth The vertically long holes 33 ₂ and 33 ₄ are formed in a vertical line with the vertically long portions of the second and fourth L-shaped holes 32 ₂ and 32 ₄ .

The inner pipe 40, FIG. 5 (a), the as (b), the first to fourth horizontal hole 41 _{1-41 4} and the first to fourth inner pipe through holes 42 ₁ to 42 ₄ Is formed.

The first laterally long hole 41 ₁ has a height so as to penetrate the pin portion of the first assembly pin 60 _{1 in} the lateral direction and allow the upper stem 10 to slide 90 ° along the circumferential direction of the inner pipe 40. There are substantially the same as the diameter of the first pin portion of the assembly pin 60 _1, and is substantially 1/4 of the outer circumference of the inner pipe 40 is wide.
Second oblong hole 41 ₂ has a first oblong hole 41 ₁ and the same shape are formed so as to face the first oblong hole 41 _1.
The third and fourth horizontally long holes 41 ₃ and 41 ₄ have the same shape as the first and second horizontally long holes 41 ₁ and 41 ₂ and are formed to face each other.
The first and third horizontally long holes 41 ₁ , 41 ₃ are formed in a vertical line separated by a distance L, and the second and fourth horizontal holes 41 ₂ , 41 ₄ are also formed in a vertical line by a distance L. Has been.

The first and second inner pipe through holes 42 ₁ and 42 ₂ are for penetrating the pin portion of the third assembly pin 60 _{3 in} the lateral direction, and the third and fourth inner pipe through holes 42. _3, 42 ₄ is for passing the pin portion of the fourth assembly pin 60 ₄ laterally. Therefore, the shape of the opening of the first to fourth inner pipe through holes 42 ₁ to 42 ₄ is the circular shape (see FIG. 5 (b)), and the first to fourth inner pipe through hole 42 _{1-42 4} diameter is slightly larger than the diameter of the pin portion of the third and fourth assembly pin 60 _3, 60 _4.
The first and third inner pipe through holes 42 _1, 42 ₃ with are formed in tandem are separated by a distance L, the second and fourth inner pipe through holes 42 _2, 42 ₄ only interval L They are separated and formed in a vertical row. The first and third inner pipe through holes 42 ₁ , 42 ₃ are formed in a vertical line with the left end portions of the first and third laterally elongated holes 41 ₁ , 41 ₃ , and the second and fourth The inner pipe through holes 42 ₂ and 42 ₄ are formed in a line with the left end portions of the second and fourth horizontally long holes 41 ₂ and 41 ₄ .

As a result, the pin portion of the first assembly pin 60 ₁ is positioned above the vertically long portion of the _first L-shaped hole 32 ₁ of the outer pipe 30, the first upper stem through hole 12 ₁ of the upper stem 10, and the inner pipe 40. The left end of the first horizontally long hole 41 ₁ , the right end of the second horizontally long hole 41 ₂ of the inner pipe 40, the second upper stem through hole 12 ₂ of the upper stem 10, and the second L-shape of the outer pipe 30. a first assembly pin 60 ₁ and fixed in the first split pin 61 ₁ mixture was allowed to penetrate the upper elongated section of the type holes 32 _2, the second pin portion of the assembly pin 60 ₂ of the outer pipe 30 3, the upper part of the L-shaped hole 32 ₃ , the third upper stem through-hole 12 ₃ of the upper stem 10, the left end of the third laterally long hole 41 ₃ of the inner pipe 40, and the fourth of the inner pipe 40. The right end of the laterally long hole 41 ₄ , the fourth upper stem through hole 12 ₄ of the upper stem 10, and the fourth L-shaped hole 32 ₄ of the outer pipe 30 After penetrating the upper side of the vertically long portion, the second assembly pin 60 ₂ is fixed by the _second split pin 61 ₂ , and the pin portion of the third assembly pin 60 ₃ is fixed to the first vertically long hole 33 of the outer pipe 30. ₁ , the first lower stem through hole 22 ₁ of the lower stem 20, the first inner pipe through hole 42 _{1 of} the inner pipe 40, the second inner pipe through hole 42 ₂ of the inner pipe 40, After passing the second lower stem through hole 22 ₂ and the upper side of the second vertically elongated hole 33 ₂ of the outer pipe 30, the third assembly pin 60 ₃ is fixed by the _third split pin 61 ₃ , and the fourth The assembly pin 60 _{4 includes} a pin portion on the upper side of the third longitudinal hole 33 ₃ of the outer pipe 30, a third lower stem through hole 22 ₃ of the lower stem 20, and a third inner pipe through hole 42 ₃ of the inner pipe 40. , The fourth inner pipe through hole 42 ₄ of the inner pipe 40, the fourth lower stem through hole 22 ₄ of the lower stem 20, and Be fixed to the fourth assembly pin 60 ₄ fourth split pins 61 ₄ of the fourth upper longitudinal hole 33 ₄ of beauty outside pipe 30 in the mixture was allowed to penetrate, and slidable outer pipe 10 is vertically The first and second assembly pins 60 ₁ , 60 ₂ allow the outer pipe 30 and the outer pipe 30 and the outer stem 30 to be rotated outside and inside the pipe portion of the upper stem 10 so that the upper stem 10 can be rotated by 90 ° along the circumferential direction of the outer pipe 30. Each of the inner pipes 40 is attached, and the third and fourth assembly pins 60 ₃ and 60 ₄ are arranged outside and inside the lower stem 20 so that the outer pipe 30 can be slid up and down and the inner pipe 40 is fixed. The outer pipe 30 and the inner pipe 40 can be attached, respectively (see FIGS. 1 and 7).

As shown in FIG. 1, the upper stem flat washer 11 is inserted into the pipe portion of the upper stem 10 between the stem portion of the upper stem 10 and the coil spring 50.
An outer pipe flat washer 31 is welded to the outer peripheral surface at the upper end of the outer pipe 30.

Thus, as shown in FIG. 1, by attaching the coil spring 50 between the upper stem flat washer 11 and the outer pipe flat washer 31, the outer pipe 30 is biased by the coil spring 50 during operation, and the first The assembly pin 60 ₁ is located above the vertically elongated portions of the first and second L-shaped holes 32 ₁ and 32 ₂ of the outer pipe 30, and the second assembly pin 60 ₂ is the third and third of the outer pipe 30. 4 of the L-shaped hole 32 _3, 32 located on the upper side of ₄ elongated section of the third assembly pin 60 ₃ is located on the upper side of the longitudinal hole 33 _1, 33 ₂ first and second outer pipe 30 At the same time, the fourth assembly pin 60 ₄ can be positioned above the third and fourth longitudinal holes 33 ₃ and 33 ₄ of the outer pipe 30.

As shown in FIGS. 6A and 6B, the safety device fitting 80 is made of a plate-like member having a J-shaped cross section. That is, the safety device fitting 80 includes a rectangular plate-shaped flat plate portion and a protruding portion bent in an arc shape from one end of the flat plate portion to the surface side of the safety device fitting 80.
In the flat plate portion of the safety device fitting 80, the pin portions of the third and fourth assembly pins 60 ₃ and 60 ₄ are respectively penetrated in the lateral direction (that is, from the front surface to the back surface of the safety device fitting 80). First and second safety device fitting through-holes 81 ₁ and 81 ₄ are formed. Therefore, (see FIG. 6 (b)) the shape of the opening surface of the first and second safety device fitting through-hole 81 _1, 81 ₄ are circular, the first and second safety device fitting through-hole The diameters 81 ₁ and 81 ₂ are substantially the same as the diameters of the pin portions of the third and fourth assembly pins 60 ₃ and 60 ₄ . The first and second safety device fitting through-holes 81 ₁ , 81 ₂ are formed in a vertical line separated by a distance L.
Further, a stopper 82 is formed in a vertical line with the first and second safety device fitting through holes 81 ₁ and 81 ₂ on the lower side of the rear surface of the flat plate portion of the safety device fitting 80 (near the boundary with the protruding portion). ing. The stopper 82 has a triangular prism shape with the inclined surface facing upward and the bottom surface facing downward (see FIG. 6A).
As shown in FIGS. 4A and 4B, the stopper 82 of the safety device fitting 80 is engaged on the lower end side of the outer pipe 30 with respect to the third vertically long hole 33 _{3 of the} outer pipe 30. The holes 34 are formed in a vertical line with the _third vertically long holes 333.

As a result, the first and third first and second assembly pins 60 ₃ and 60 ₄ can be inserted into the first and third vertically elongated holes 33 ₁ and 33 ₃ of the outer pipe 30 before passing through the first and _third assembly pins 60 ₃ and 60 ₄ . And the second safety device fitting through-holes 81 ₁ and 81 ₄ , respectively, to bring the back surface of the flat plate portion of the safety device fitting 80 into close contact with the outer peripheral surface of the outer pipe 30 as shown in FIG. The stopper 82 of the safety device fitting 80 can be attached in a state of being engaged with the locking hole 34 of the outer pipe 30.
Further, as shown in FIG. 7, the stopper 82 of the safety device bracket 80 can be protruded from the locking hole 34 of the outer pipe 30 by pulling the protruding portion of the safety device bracket 80 to the side opposite to the outer pipe 30. If the outer pipe flat washer 31 is lifted to the upper stem flat washer 11 side, the outer pipe 30 can be moved upward (upper stem flat washer 11 side).

The outer diameter of the lower stem 20 is substantially the same as the inner diameter of the stem receiver 4 attached to the upper surface of the fork 3 (see FIG. 1).
Further, as shown in FIG. 3, a bolt receiving flat washer 72 is provided at the lower end side of the lower stem 20 with respect to the third and fourth lower stem through holes 22 ₃ and 22 _{4 of the} lower stem 20 as shown in FIG. The first to fourth recesses 21 _{1 to} 21 _{4 that} are recessed inward to form the same are formed at the same height from the lower end of the lower stem 20 and at intervals of 90 °.
Furthermore, first and second enlargement cutouts 23 ₁ and 23 ₂ are formed at the lower end of the lower stem 20 so as to face each other.

Thus, before the bicycle handle 1 is assembled, the lower end portion of the lower stem 20 is inserted into the stem receiver 4 to adjust the height, and then the fixing bolt 71 is turned to move the fixed taper piece 73 upward. As a result, the fixed taper piece 73 enters the lower stem 20, and the diameter of the lower end portion of the lower stem 20 is enlarged by the first and second enlargement cutouts 23 ₁ , 23 ₂ . It can be fixed to the stem receiver 4.

In addition, although two expansion notches (first and second expansion notches 23 ₁ and 23 ₂ ) are formed at the lower end portion of the lower stem 20, the number of expansion notches is at least one. That's fine.

Next, a method for rotating the handlebar 2 by 90 ° during parking will be described with reference to FIG.
First, the driver pulls the protruding portion of the safety device fitting 80 with the left hand to the side opposite to the outer pipe 30 to cause the stopper 82 of the safety device fitting 80 to jump out of the locking hole 34 of the outer pipe 30.

Subsequently, the driver lifts the outer pipe flat washer 31 with the right hand and moves the outer pipe 30 to the upper stem flat washer 11 side. Thus, a first assembly pin 60 ₁ is moved to the lower side of the first and second L-shaped holes 32 _1, 32 ₂ of the elongated portion of the outer pipe 30, the second assembly pin 60 _second outer pipe third and fourth L-shaped hole 32 ₃ of 30, 32 ₄ moves to the lower side of the longitudinal section, a third assembly pin 60 ₃ is the first and second elongated holes 33 of the outer pipe 30 _1, while moving to the 33 ₂ of the lower, fourth assembly pin 60 ₄ is moved to the third and fourth vertical hole 33 _3, 33 lower ₄ of the outer pipe 30.

Subsequently, the operator removes the left hand from the safety device fitting 80, and then rotates the handle bar 2 by 90 degrees with the left hand in the arrow direction shown in FIG. As a result, the upper stem 10 rotates with the rotation of the handle bar 2, and the upper stem 10 slides 90 ° along the circumferential direction of the outer pipe 30 together with the first and second assembly pins 60 ₁ and 60 ₂ . As a result, the handle bar 2 can be rotated by 90 °.

Next, a method of returning the handlebar 2 to the original position after taking out the bicycle from the bicycle parking lot will be described.
First, the driver rotates the handlebar 2 by 90 ° in the direction opposite to the arrow shown in FIG. 7 with the left hand or the right hand. As a result, the upper stem 10 rotates with the rotation of the handle bar 2, and the upper stem 10 slides 90 ° along the circumferential direction of the outer pipe 30 together with the first and second assembly pins 60 ₁ and 60 ₂ .

Since the outer pipe 30 is urged downward by the coil spring 50, the first assembly pin 60 ₁ is located above the vertically elongated portions of the first and second L-shaped holes 32 ₁ and 32 ₂ of the outer pipe 30. moving the second assembly pin 60 ₂ is moved to the upper side of the third and fourth L-shaped holes 32 _3, 32 ₄ of the elongated portion of the outer pipe 30, the third assembly pin 60 ₃ is the outer pipe 30 first and thereby move second above the vertically long holes 33 _1, 33 _2, fourth assembly pins 60 ₄ moved to the upper side of the third and fourth vertical hole 33 _3, 33 ₄ of the outer pipe 30 To do. As a result, the handle bar 2 can be returned to the original position.

Further, since the flat plate portion of the safety device bracket 80 is urged by the first and second coil springs 51 ₁ and 51 ₂ and the safety device bracket 80 moves to the outer pipe 30 side, the stopper 82 of the safety device bracket 80 is moved. It engages with the locking hole 34 of the outer pipe 30. As a result, the outer pipe 30 cannot move upward unless the protruding portion of the safety device fitting 80 is pulled to the opposite side of the outer pipe 30.

In the above description, the bicycle handle 1 includes the safety device bracket 80. However, the outer pipe 30 is biased downward by the coil spring 50 during operation, and the outer pipe flat washer 31 is not intentionally lifted by the driver. As long as the outer pipe 30 does not move upward, the safety device bracket 80 is not necessary.
Further, the ratio of the length of the pipe portion of the upper stem 10 and the length of the lower stem 20 is not particularly limited, but the length of the pipe portion of the upper stem 10 is preferably ½ of the length of the lower stem 20.
Furthermore, while forming a locking hole 34 in the outer pipe 30, the stopper 82 in the lower part of the third longitudinal hole 33 ₃ of the outer pipe 30 may be engaged. In this case, it is not necessary to form the locking hole 34 in the outer pipe 30.

It is a figure which shows the structure of the handle | steering_wheel 1 for bicycles by one Example of this invention. It is a figure which shows the structure of the upper stem 10 shown in FIG. 1, (a) is the figure seen from the same direction as FIG. 1, (b) is the figure seen from the left of (a). It is a figure which shows the structure of the lower stem 20 shown in FIG. 1, (a) is the figure seen from the same direction as FIG. 1, (b) is the figure seen from the left of (a). It is a figure which shows the structure of the outer pipe 30 shown in FIG. 1, (a) is the figure seen from the same direction as FIG. 1, (b) is the figure seen from the left of (a). It is a figure which shows the structure of the inner pipe 40 shown in FIG. 1, (a) is the figure seen from the same direction as FIG. 1, (b) is the figure seen from the left of (a). It is a figure which shows the structure of the safety device metal fitting 80 shown in FIG. 1, (a) is the figure seen from the same direction as FIG. 1, (b) is the figure seen from the left of (a). It is a figure for demonstrating the method to rotate the handlebar 2 shown in FIG. 1 90 degrees at the time of parking.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bicycle handle 2 Handle bar 3 Fork 4 Stem receiver 10 Upper stem 11 Upper stem flat washer 12 _{1 to} 12 ₄ First to _fourth upper stem through hole 20 Lower stem 21 _{1 to} 21 ₄ First to fourth recesses 22 _{1 to} 22 ₄ 1st to 4th lower stem through-holes 23 ₁ and 23 ₂ 1st and 2nd expansion notches 30 Outer pipe 31 Outer pipe flat washers 32 _{1 to} 32 ₄ First to 4th L shaped hole 33 _to 333 ₄ of the first to fourth vertical hole 34 locking hole 40 in the pipe 41 _{1-41 4} first to fourth horizontal hole 42 _{1-42 4} inner pipe through the first to fourth hole 50 coil spring 51 _1, 51 ₂ receive the first and second coil springs 60 _6O4 first to fourth assembly pin 61 _{1-61 4} first to fourth split pin 71 fixing bolt 72 bolts Rights Washer 73 Fixed taper piece 80 Safety device bracket 81 ₁ , 81 ₂ First and second safety device fitting through-hole 82 Stopper L interval

Claims (5)

A stem portion for fixing the handlebar (2), and an upper stem (10) provided with a cylindrical pipe portion suspended from the bottom surface of the stem portion;
A cylindrical lower stem (20) having a lower end side portion fitted in and fixed to the stem receiver (4) and having the same diameter as the diameter of the pipe portion of the upper stem;
A cylindrical outer pipe (30);
A cylindrical inner pipe (40);
An outer pipe biasing means (11, 31, 50) provided at the upper end of the pipe portion of the upper stem and for biasing the outer pipe downward;
First to fourth assembly pins (60 _{1 to} 60 ₄ ),
The first and second assembly pins allow the outer pipe to slide up and down and the upper stem to rotate 90 ° along the circumferential direction of the outer pipe. The outer pipe and the inner pipe are respectively attached inside,
The outer pipe and the inner pipe are respectively attached to the outer side and the inner side of the lower stem by the third and fourth assembly pins so that the outer pipe can slide up and down and the inner pipe is fixed. Yes,
A bicycle handle characterized by that. First and second upper stem through holes (12 ₁ , 12 ₂ ) for penetrating the pin portion of the first assembly pin in the lateral direction in the pipe portion of the upper stem, and the second assembly pin And third to fourth upper stem through holes (12 _3, 12 ₄ ) for penetrating the pin portions in the lateral direction,
First and second lower stem through holes (22 ₁ , 22 ₂ ) for penetrating the pin portion of the third assembly pin laterally in the lower stem, and the pin portion of the fourth assembly pin And third lower and fourth lower stem through-holes (22 ₃ , 22 ₄ ) for penetrating them laterally,
A vertical portion for allowing the outer pipe to penetrate the pin portion of the first assembly pin in the lateral direction and allowing the outer pipe to slide up and down and the upper stem are disposed along the circumferential direction of the outer pipe. ° The first and second L-shaped holes (32 ₁ , 32 ₂ ) made of a horizontally long portion for allowing sliding, and the pin portion of the second assembly pin are horizontally penetrated and the outer pipe is passed through Third and fourth L-shaped holes (32 ₄ , 32) each having a vertically long portion for allowing vertical sliding and a horizontally long portion for allowing the upper stem to slide 90 ° along the circumferential direction of the outer pipe. and _4), the first and second elongated holes for causing the slidable outer pipe up and down with the passing the pin portion of the third assembly pin laterally (33 _1, 33 _4), the The fourth assembly pin Third and fourth vertically long holes (33 ₃ , 33 ₄ ) for penetrating the pin portion in the lateral direction and allowing the outer pipe to slide up and down are formed,
First and second laterally elongated holes for allowing the inner pipe to penetrate the pin portion of the first assembly pin in the lateral direction and allowing the upper stem to slide 90 ° along the circumferential direction of the inner pipe. (41 ₁ , 41 ₂ ), and a third and a second for penetrating the pin portion of the second assembly pin laterally and allowing the upper stem to slide 90 ° along the circumferential direction of the inner pipe 4 laterally long holes (41 ₃ , 41 ₄ ), first and second inner pipe through holes (42 ₁ , 42 ₂ ) for penetrating the pin portion of the third assembly pin in the lateral direction, Third and fourth inner pipe through holes (42 ₃ , 42 ₄ ) for penetrating the pin portion of the fourth assembly pin laterally are formed,
The bicycle handle according to claim 1, wherein: The lower inner surface of the pipe portion of the upper stem is an inclined surface with an inclination angle of 45 °,
The upper end outer surface of the lower stem is an inclined surface with an inclination angle of 45 °,
The bicycle handle according to claim 1, wherein the bicycle handle is characterized in that: A safety plate (80) including a rectangular plate-shaped flat plate portion and a protruding portion provided at one end of the flat plate portion;
And first and second coil springs (51 ₁ , 51 ₂ ) inserted between the heads of the third and fourth assembly pins and the safety device bracket, respectively.
First and second safety device fitting through holes (81 ₁ , 81 ₄ ) for penetrating the pin portions of the third and fourth assembly pins in the lateral direction in the flat plate portion of the safety device fitting; A stopper (82) is formed,
A locking hole (34) for engaging the stopper is formed in the outer pipe.
The bicycle handle according to any one of claims 1 to 3, wherein the handle is for a bicycle. A fixing bolt (71);
A disc-shaped bolt receiving flat washer (72) in which a through-hole for vertically penetrating the threaded portion of the fixing bolt is formed at the center;
A trapezoidal vertical fixed taper piece (73) in which a screw hole to be screwed with a screw portion of the fixing bolt is formed from the upper surface to the bottom surface;
The lower end of the lower stem is in contact with the side surface of the fixed taper piece,
A plurality of recesses (21 _{1 to} 21 ₄ ) for placing the bolt receiving flat washers are formed below the third and fourth lower stem through holes of the lower stem,
Expansion notches (23 ₁ , 23 ₂ ) are formed at the lower end of the lower stem,
The bicycle handle according to any one of claims 1 to 4, wherein the handle is for a bicycle.