JP3149545U - bicycle - Google Patents

Abstract

To provide a bicycle provided with adjusting means capable of adjusting the height of a handlebar quickly and easily even while traveling. The positioning member includes a positioning member, a binding lever, a screw rod, and a telescopic shaft. The positioning member and the binding lever are provided at the upper end of the main tube, and the binding lever reduces the inner diameter. When the positioning member is enlarged and moved, the screw tube 42 is positioned inside the main shaft tube, and the telescopic shaft having the rotary head 411 at the upper end is provided with a screw rod, and the screw rod and the telescopic shaft rotate with each other. The screw rod is inserted into the screw tube, the screw rod and the telescopic shaft are inserted into the main shaft tube, the positioning shaft 401 is provided on the telescopic shaft, and the positioning member is located inside the positioning groove. When the telescopic shaft is positioned and connected to the stem, the binding lever is moved to loosen the positioning member, and the rotating head is rotated to move the screw rod up and down to interlock the telescopic shaft to increase the height. Can be adjusted Consisting of concrete. [Selection] Figure 1

Description

  The present invention relates to a bicycle, and more particularly, to a bicycle including adjusting means that can be quickly expanded and contracted to adjust the height of a handlebar.

  The conventional bicycle cannot adjust the height of the handlebar.

  In other words, the height of the steering wheel can only be selected depending on the type of bicycle, such as city cycle, road racer, etc., and can be adjusted as necessary, or the height of the handlebar depends on the size of the bicycle tire. It is determined.

  In the case of the bicycle described above, the height of the handle bar is constant.

  Therefore, the height of the rider is not constant, but not only the type of bicycle and the size of the tire, but also the rider's height, hand length, or sitting, whether to ride in a leaning posture with the upper body tilted forward The handlebar height cannot be adjusted accordingly.

  When riding a bicycle, the muscles that mainly focus on concentrate on the lower body, but in particular, the upper body such as the shoulders and neck must be stressed to stabilize the body.

  For this reason, when riding a bicycle for a long time, the shoulders, shoulder blades and neck become stiff. In addition, in the case of a bicycle that rides while sitting, there is a possibility that the pressure on the intervertebral disc will increase and the symptoms of back pain may become stronger.

  In particular, a bicycle with a relatively low handlebar assumes a forward leaning posture when riding, and the refractive index of the waist increases, so that the back pain is more severe. If the handlebar is too low, the rider's posture will tilt further forward, so the rider must take a posture with his neck raised upwards in order to keep his line of sight straight.

  Therefore, the muscle on the back side of the rider's neck tends to get tired and the neck is broken. The appropriate height of the handlebar is the height at which the rider can remove the shoulder force and bend the elbow joint approximately at a right angle.

  A foldable bicycle can be provided by assembling a handlebar by applying a rotary folding method or an expansion / contraction method.

  However, adjusting the height of the handlebar requires a great number of steps and is extremely inconvenient.

  Regardless of the size, many bicycles are considered to be safe for traveling, and are adjusted after the handlebar is adjusted to an appropriate height before traveling on the road and then traveled.

  However, there is a limit to the time that you can ride a horse even if you adjust it to the optimal state, and even if it matches the human body engineering, if you keep the posture and the height of the handlebar long, the waist, shoulders, neck, hands, etc. Symptoms such as numbness or pain occur to anyone.

  In particular, when climbing a hill against a change in road surface, the height of the handlebar cannot be lowered immediately, and when climbing a hill, it cannot be raised immediately.

  Therefore, the height of the handlebar cannot be adjusted according to the actual demand on the road surface. This is a common problem with conventional bicycles.

  An object of the present invention is to provide a bicycle provided with an adjusting means that can easily adjust the height of a handlebar quickly without stopping traveling or requiring a tool.

Therefore, as a result of intensive research in light of the drawbacks found in the conventional technology,
The main body includes a main shaft tube and a stem provided above the front fork of the bicycle, and the handle height adjusting means provided on the main shaft tube includes a positioning member, a binding lever, a screw rod, and a telescopic shaft. And comprising
The positioning member and the binding lever are provided at the upper end edge of the spindle tube, and the binding lever is a binding ring that can quickly reduce or enlarge the inner diameter of the ring, and push and move the positioning member; A threaded tube is positioned inside the spindle tube;
The screw rod is inserted inside the screw tube, and a rotary head is provided at the upper end.
The telescopic shaft is internally provided with a screw rod, and the screw rod and the telescopic shaft are rotatably connected to each other, and the screw rod and the telescopic shaft are inserted into the main shaft tube. A positioning groove is provided, the positioning member is inserted into the positioning groove, and the telescopic shaft is positioned and connected to the handle connecting pipe;
With the binding lever, the positioning member can be tightly engaged or loosened in the positioning groove of the telescopic shaft. When the positioning member is loosened, the rotary head is rotated and the screw rod is moved up and down to move the telescopic shaft. Since the height can be adjusted in conjunction, the adjustment of the telescopic shaft is convenient and the problem is solved by the bicycle structure consisting of a structure that can be done quickly. Completed.

Hereinafter, this device will be specifically described.
The bicycle according to claim 1 includes a main shaft tube and a stem provided above a front fork of the bicycle, and a handle height adjusting means provided on the main shaft tube includes a positioning member, a binding member Comprising a lever, a screw thread, and a telescopic shaft,
The positioning member and the binding lever are provided at the upper end edge of the spindle tube, and the binding lever is a binding ring that can quickly reduce or enlarge the inner diameter of the ring, and push and move the positioning member; A threaded tube is positioned inside the spindle tube;
The screw rod is inserted inside the screw tube, and a rotary head is provided at the upper end.
The telescopic shaft is internally provided with a screw rod, and the screw rod and the telescopic shaft are rotatably connected to each other, and the screw rod and the telescopic shaft are inserted into the main shaft tube, A positioning groove is provided, the positioning member is inserted into the positioning groove, and the telescopic shaft is positioned and connected to the handle connecting pipe;
With the binding lever, the positioning member can be tightly engaged or loosened in the positioning groove of the telescopic shaft. When the positioning member is loosened, the rotary head is rotated and the screw rod is moved up and down to move the telescopic shaft. Since the height can be adjusted in conjunction, it is convenient to adjust the telescopic axis and can be quickly performed.

  In the bicycle according to claim 2, the telescopic shaft positioning groove according to claim 1 is provided in the axial direction on the outer surface of the telescopic shaft, and the positioning member has an engaging block at one end, It is inserted into the positioning groove, and the outer surface of the other end is provided with a thread groove and is provided with a nut.

  In the bicycle according to claim 3, the binding ring of the binding lever according to claim 1 is provided with an opening, and an eccentric lever is rotatably provided in the opening. When the eccentric lever is repelled and moved, the binding ring The inner diameter of the tube is reduced or expanded.

  According to a fourth aspect of the present invention, a screw hole is provided in the diametrical direction of the binding ring according to the first aspect, and the screw hole serves to make a positioning member.

  In the bicycle according to claim 5, the screw tube according to claim 1 is provided with a convex ring at the bottom, an inner ring is provided inside the main shaft tube, and the convex ring is fixed on the inner ring. Provided.

  The bicycle according to the present invention has an effect that it is practical because it can safely and easily adjust the height of the handlebar and does not need to stop traveling.

The present invention is a bicycle having adjusting means that can adjust the height of the handlebar quickly and easily even while traveling, and includes a main shaft tube and a stem provided above the front fork of the bicycle. The handle height adjusting means provided on the spindle tube includes a positioning member, a bundling lever, a screw rod, and a telescopic shaft.
The positioning member and the binding lever are provided at the upper end edge of the spindle tube, and the binding lever is a binding ring that can quickly reduce or enlarge the inner diameter of the ring, and push and move the positioning member; A threaded tube is positioned inside the spindle tube;
The screw rod is inserted inside the screw tube, and a rotary head is provided at the upper end.
The telescopic shaft is internally provided with a screw rod, and the screw rod and the telescopic shaft are rotatably connected to each other, and the screw rod and the telescopic shaft are inserted into the main shaft tube, A positioning groove is provided, the positioning member is inserted into the positioning groove, and the telescopic shaft is positioned and connected to the handle connecting pipe;
With the binding lever, the positioning member can be tightly engaged or loosened in the positioning groove of the telescopic shaft. When the positioning member is loosened, the rotary head is rotated and the screw rod is moved up and down to move the telescopic shaft. Since the height can be adjusted in conjunction, the adjustment of the telescopic shaft is convenient, and a specific example is given to illustrate the structure and features of a bicycle consisting of a structure that can be done quickly and illustrated. This will be described below with reference.

  1 to 4 show handlebar height adjusting means in a bicycle according to the present invention.

  According to the drawings, the present invention includes a main shaft tube 10, a positioning member 20, a binding lever 30, a telescopic shaft 40, a screw rod 41, and a screw tube 42.

  The main shaft tube 10 is located at the upper end of the front fork of the bicycle and is rotatably provided at the upper end edge of the bicycle frame.

  The main shaft tube 10 is provided with a thread groove 101 at the upper end. A plurality of hinges 11 (see FIG. 2) having inner screw grooves on the inside are screwed into the screw grooves 101.

  The binding lever 30 is a binding ring that can be quickly fitted, and is formed by combining a binding ring 31 and an eccentric lever 32.

  The binding ring 31 includes an opening 312, and an eccentric lever 32 is rotatably provided in the opening 312.

  When the eccentric lever 32 is repelled, the inner diameter of the binding ring 31 can be reduced or increased.

  The binding ring 31 is provided with a screw hole 311 at a position in the diametrical direction, and the screw hole 311 is provided for drilling the positioning member 20.

  The positioning member 20 is provided with an engagement block 21 at one end and a screw groove 22 on the surface of the other end.

  The screw groove 22 is provided with a nut 23.

  The positioning member 20 is engaged on the telescopic shaft 40 while the inner diameter of the binding lever 30 is reduced.

  The telescopic shaft 40 is provided by being inserted into the main shaft tube 10. A positioning tank 401 is provided on the surface of the telescopic shaft 40 in the axial direction.

  The positioning tank 401 of the telescopic shaft 40 is a dovetail groove, and the engaging block 21 of the positioning member 20 is inserted into the positioning groove 401 and engaged therewith.

  The engagement block 21 is formed in a ladder-shaped block.

  The telescopic shaft 40 is connected to a bicycle stem 50 (see FIG. 2), and the stem 50 connects a handlebar 51.

  The screw rod 41 is inserted into the telescopic shaft 40 and the screw tube 42 and is rotatably provided on the telescopic shaft 40. The screw rod 41 is provided with a rotary head 411 at the upper end.

  The threaded tube 42 is positioned inside the main shaft tube 10 and inserted into the telescopic shaft 40, and a convex ring 421 is provided at the bottom. Since the outer diameter of the convex ring 421 is smaller than the inner diameter of the main shaft tube 10, the convex ring 421 at the bottom end of the screw tube 42 is fixed to the inner ring 102 inside the main shaft tube 10.

  In the bicycle of this invention, the height adjustment means of the handlebar is formed by the combination described above.

  As disclosed in the drawings, when adjusting the height of the handle, the eccentric lever 32 is opened to enlarge the inner diameter of the binding ring 31.

  When the binding ring 31 is loosened, the positioning member 20 does not contact the positioning groove 401 of the telescopic shaft 40 as the binding ring 31 moves outward.

  The engagement block 21 of the positioning member 20 serves to freely move the positioning groove 401 of the telescopic shaft 40 up and down.

  The rotary head 411 is rotated to rotate the screw rod 41, and the screw rod 41 and the screw groove of the screw tube 42 are moved relative to each other to raise or lower the screw rod 41.

  Since the screw rod 41 is pivotably connected to the telescopic shaft 40, the screw rod 41 simultaneously moves up and down in conjunction with the telescopic shaft 40, and moves the telescopic shaft 40 (or handle bar 51) up and down. To adjust to the required height.

  When positioning, if the eccentric lever 32 is moved to the original position, the inner diameter of the binding ring 31 is reduced.

  When the inner diameter is reduced and the binding ring 31 is tightly fitted, the positioning member 20 moves inward along with the binding ring 31, and comes into close contact with the positioning groove 401 of the telescopic shaft 40. 21 engages with the positioning groove 401 of the telescopic shaft 40 so that the telescopic shaft 40 cannot move up and down, and the telescopic shaft 40 is positioned. When the telescopic shaft 40 is positioned, it does not move downward.

  The threaded tube 42 corresponds to various tire sizes, and is provided with a convex ring 421 at the bottom, keeping the threaded tube 42 at the center position and enhancing the stability when the telescopic shaft 40 is expanded and contracted.

  The telescopic shaft 40 of the present invention supports the downward pressure of the handle bar 51 by using not only the engagement block 21 of the positioning member 20 but also the screw rod 41 screwed to the screw tube 42 when positioning. .

  The engagement block 21 of the positioning member 20 can control whether the telescopic shaft 40 is expanded or contracted.

  Therefore, even if the eccentric lever 32 is accidentally opened, the telescopic shaft 40 and the handle bar 51 are not lowered or loosened, so that the bicycle can be run safely.

  In this device, it is very convenient and practical to adjust the height of the handle bar 51, and can quickly correspond to the height, hand length, and riding posture of the rider.

  Since the rider can adjust the posture while riding, the body can be maintained in a comfortable state.

  This device can quickly adjust and position the handle bar 51. In addition, since it can be operated even while running, it is very convenient for cycling athletes and does not waste competition time.

  Furthermore, since this device reduces and expands the binding ring by the eccentric lever 32, the operation time can be shortened. Therefore, it is possible to improve safety at high speed.

  The above is a preferred embodiment of the present invention, and does not limit the scope of implementation of the present invention. Therefore, any modifications or changes that can be made by those skilled in the art, which are made in the spirit of the present invention and have an equivalent effect on the present invention, belong to the scope of the utility model registration claim of the present invention. Shall.

It is the exploded view which showed the adjustment means of the handlebar height in the bicycle of this invention. It is sectional drawing which showed the height adjustment means disclosed in FIG. It is sectional drawing which showed the state which the positioning member of the binding lever of the height adjustment means in the bicycle of this invention engaged with the expansion-contraction shaft. It is sectional drawing which showed the state which made the height of the handlebar low in the bicycle of this invention.

DESCRIPTION OF SYMBOLS 10 Main shaft pipe 101 Screw groove 102 Inner ring 11 Hinge 20 Positioning member 21 Engagement block 22 Screw groove 23 Nut 30 Binding lever 31 Binding ring 311 Screw hole 312 Opening 32 Eccentric lever 40 Telescopic shaft 401 Positioning groove 41 Screw rod 411 Rotating head 42 Screw tube 421 Convex ring 50 Stem 51 Handle bar

Claims (5)

A main shaft tube and a stem provided above the front fork of the bicycle, and a handle height adjustment structure provided on the main shaft tube includes a positioning member, a binding lever, a screw rod, and a telescopic shaft. And comprising
The positioning member and the binding lever are provided at the upper end edge of the spindle tube, and the binding lever is a binding ring that can quickly reduce or enlarge the inner diameter of the ring, and push and move the positioning member; A threaded tube is positioned inside the spindle tube;
The screw rod is inserted inside the screw tube, and a rotary head is provided at the upper end.
The telescopic shaft is internally provided with a screw rod, and the screw rod and the telescopic shaft are rotatably connected to each other, and the screw rod and the telescopic shaft are inserted into the main shaft tube, A positioning groove is provided, the positioning member is inserted into the positioning groove, and the telescopic shaft is positioned and connected to the handle connecting pipe;
With the binding lever, the positioning member can be tightly engaged or loosened in the positioning groove of the telescopic shaft. When the positioning member is loosened, the rotary head is rotated and the screw rod is moved up and down to move the telescopic shaft. A bicycle characterized by having a structure that can adjust the height in conjunction and can quickly adjust the telescopic shaft.   A positioning groove for the telescopic shaft is provided in an axial direction on the outer surface of the telescopic shaft. The positioning member has one end as an engagement block, the engagement block is inserted into the positioning groove, and the outer surface at the other end. The bicycle according to claim 1, wherein the bicycle is provided with a thread groove and includes a nut.   The binding ring of the binding lever is provided with an opening, and an eccentric lever is rotatably provided in the opening. When the eccentric lever is moved, the inner diameter of the binding ring is reduced or enlarged. The bicycle according to 1.   The bicycle according to claim 1, wherein a screw hole is provided in a diametrical direction of the binding ring, and the screw hole is provided for drilling a positioning member.   2. The screw tube according to claim 1, wherein the screw tube is provided with a convex ring at a bottom portion, an inner ring is provided inside the main shaft tube, and the convex ring is fixedly provided on the inner ring. bicycle.

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