TWI833615B - Wheel spoke clamping device - Google Patents

Abstract

A wheel spoke clamping device for clamping a flat spoke, comprises a grip rod, a piston rod and a control handle. Wherein one end of grip rod has a pivot protrusion part, and the other end of the grip rod is concavely provided with a movable groove. One end of the piston rod is inserted into the movable groove, and the other end of the piston rod is provided with a clamp block. Wherein a spring is installed in the movable groove, The two ends of the spring bounce against the movable groove and an end surface of the piston rod respectively, and the spring pushes the piston rod to move in the movable groove with elastic force. The control handle faces the grip rod has protrude with a control block. The control block penetrates through the surface of the grip rod and controls the movement of the piston rod.

Description

Spoke clamping device

The present invention is a spoke clamping device, specifically a technology applied in the field of bicycles. It is mainly used to prevent the spokes from being torsed and damaging the tension when assembling and adjusting the flat spokes on the rim, which is a highly practical device. invention.

Bicycles have become one of the most popular means of transportation today. The spokes used to connect the rim and the hub are discussed below. The spokes can be divided into two types according to the direction of their force, namely: pressure type and tension type. Different spokes can be used. Made of materials, such as wood, metal or synthetic fibers, and generally high-end wheelsets use so-called aero bladed spokes, which mainly use a flat shape to reduce air resistance and achieve lightweight, and flat spokes can It is subdivided into two types: oval and flat. However, regardless of the distinction between flat spokes, they all have a common problem, that is, when the flat spokes are assembled with the rim, most of them will install the flat spokes in a fully automatic or semi-automatic manner. on the rim.

However, the spokes are a very precise bicycle part, so during the assembly process or when fine-tuning, if electric hand tools are used for assembly and fine-tuning, it is easy to cause damage due to the large instantaneous driving force of the electric hand tools. When installing the flat spokes, the electric hand tool was driven too far, causing the flat spokes to be twisted and deformed. Therefore, during the fully automatic processing process, the machine's fixture may be used to clamp and fix the flatter position of the flat spokes to avoid sudden damage. subject to torsional deformation.

In the case of semi-automatic operation, the general operator will hold needle-nosed pliers and clamps at the flatter position of the flat spokes. However, today's flat spokes are mostly made of metal, and even some high-end bicycles are made of carbon fiber, so sharp spokes are used. The method of clamping flat spokes with needle-nose pliers and clamps can easily cause damage to the outer surface of the flat spokes. Because the force-bearing area of the needle-nose pliers and clamps on the spokes is small, it is very easy to cause damage and damage to the surface of the spokes. When it is damaged and affects the smoothness of the surface, it is very easy to affect the wind cutting effect, thereby affecting the riding speed. Therefore, relevant industry players should think carefully about the installation and adjustment operations of flat spokes, in addition to the machine, and how to operate them to prevent damage to the outer surface of the flat spokes.

The main purpose of the present invention is to provide flat spokes that can avoid being deformed by rotation during assembly and fine-tuning processing operations. It improves the conventional technology, which easily causes flat spokes to be clamped only with needle-nose pliers and clips. The surface of the spokes is injured or damaged, which affects the speed during riding.

However, in order to achieve the above purpose and effect, the present invention provides a spoke clamping device, which is mainly used to clamp a flat spoke. It includes: a handle with a pivot convex portion at one end, and the other end of the handle is facing A movable groove is formed in the direction of the pivot convex portion; a piston rod has one end inserted into the movable groove; a clamping block is provided at the other end of the piston rod; and a spring is installed in the movable groove. Both ends respectively spring against the bottom surface of the movable groove and the end surface of the piston rod. The spring uses elastic force to push the piston rod to move in the movable groove and makes the clamping block approach and away from the end surface of the handle; a control handle, one end of which is pivoted Set on the pivot convex portion, a control block is protruding from the side of the control handle facing the handle. The control block penetrates from the surface of the handle and controls the movement of the piston rod. The other end of the control handle Then the movement is away from and close to the handle; wherein, the pivot assembly of the control handle and the pivot convex part is used, coupled with the elastic force of the spring, so that the piston rod is provided with a clamping block One end of the clamping block is close to and away from the end face of the handle, and the flat spoke can be clamped when the clamping block is close to the end face of the handle.

According to the above-mentioned main definition of the present invention, the advantage is that the operator can hold the handle and press it with his fingers attached to the control handle, and then clamp the flat plate with the distance between the clamp block and the end surface of the handle. This way, the flat spokes can be prevented from torsional deformation due to rotation during assembly processing and micro-adjustment operations, so that the flat spokes can maintain the assembly direction and maintain the tension setting, and use the clamping block and the grip rod The smooth arrangement of the end faces can prevent damage to the surface of the flat spokes, and maintain the overall shape of the flat spokes to avoid damage and damage. It can be seen that the present invention is a very practical and progressive creation, and is worthy of promotion by the industry. and made public to the public.

100: Flat spokes

1: Grip

11:Front end

12:Rear end part

13: Pivot convex part

14:Activity slot

15:Outer long hole

16:Limit slot

2:piston rod

21:Clamp block

22:Inner long hole

23:Shaft

3: spring

4: Control handle

41:Control block

411: Push Department

412: Stopper

4121: Upper surface

4122:Side surface

42:pivot film

43:Slot

44:Pivot

45:Inner surface

46:Outer surface

461: Grip slot

5: Washer

The first figure is a three-dimensional schematic diagram of the present invention.

The second figure is a schematic three-dimensional view of the present invention from another perspective.

The third figure is an exploded perspective view of the present invention.

The fourth figure is a schematic cross-sectional view along line IV-IV in the first figure.

The fifth picture is a schematic diagram of the pressing action of the control handle in the fourth picture.

Figure 6 is a schematic three-dimensional view of the clamped flat spoke according to the present invention.

The seventh picture is a schematic cross-sectional view of line segment VII-VII in the sixth picture.

The eighth figure is a schematic three-dimensional view of another embodiment of the control handle of the present invention.

Figure 9 is a schematic three-dimensional view of the clamping block of the present invention made of soft material.

Figure 10 is a schematic three-dimensional view of a plurality of washers provided between the clamping block and the bottom end surface of the handle according to the present invention.

In order to clearly illustrate that this invention can achieve the above purposes and effects, the characteristics and effects of the embodiments of this invention are described in detail with illustrations. Referring to Figures 1 to 7, a spoke clamping device of the present invention is mainly used to clamp a flat spoke 100. It includes: a handle 1, which is cylindrical and has a front end. 11 and a rear end portion 12. The front end portion 11 is convexly provided with a pivot convex portion 13. The rear end portion 12 of the handle 1 is recessed toward the pivot convex portion 13 to form a movable groove 14; a piston rod 2, The piston rod 2 is arranged according to the groove shape of the movable groove 14 (the invention is drawn as a cylindrical shape). One end of the piston rod 2 is inserted into the notch of the movable groove 14, and a clamping block 21 is protruding from the other end of the piston rod 2. , the clamping block 21 is in the shape of a flat cylinder, and a spring 3 is installed in the movable groove 14. The two ends of the spring 3 respectively spring against the bottom surface of the movable groove 14 and the end surface of the piston rod 2. The spring 3 is The elastic force pushes the piston rod 2 to move in the movable groove 14, and makes the clamping block 21 approach and move away from the end surface of the handle 1; a control handle 4 has one end pivoted on the pivot convex portion 13, and the other end of the control handle 4 One end extends toward the direction of the clamping block 21, and a control block 41 is protruding from the side of the control handle 4 facing the handle 1. The control block 41 penetrates through the surface of the handle 1 and controls the piston rod 2. Move, the other end of the control handle 4 moves away from and close to the handle 1; wherein, the pivot assembly of the control handle 4 and the pivot protrusion 13 is used, coupled with the elastic force of the spring 3, so that the piston rod 2 is provided with One end of the clamping block 21 is close to and away from the end surface of the handle 1. When the clamping block 21 is close to the end surface of the handle 1, the flat spoke 100 can be clamped.

It is generally known that when assembling spokes, one end of the spoke is first installed on the wheel hub, and the other end of the spoke is combined with the copper head located in the rim. Finally, an electric hand tool is used from the side of the rim facing the tire. Drill holes and lock the spokes with screws and copper heads, but this method will be like the use of electric hand tools as mentioned in the previous technology. The instantaneous driving force will cause the spokes to be twisted and affect the tension setting, so In order to avoid the above problems, the present invention uses the clamping block 21 and the end surface of the handle 1 to clamp the flat spoke 100, allowing the operator to use electric hand tools or general manual tools during assembly or fine-tuning. The operation of the hand tool may be limited by the clamping between the clamping block 21 and the end face of the handle 1. system, thereby preventing the flat spokes 100 from being rotated and torsionally deformed, thereby maintaining the tension setting of the flat spokes 100, and eliminating the additional cost of replacing the flat spokes 100 due to torsional deformation.

According to the above description, other technical features of the present invention will be further described below. First, please refer to the third to seventh figures. In order to allow the control handle 4 to reliably drive the piston rod 2 to move in the movable groove 14, the handle 4 is The rod 1 is further provided with an outer long hole 15, which is connected to the movable groove 14, and the piston rod 2 is provided with an inner long hole 22 corresponding to the outer long hole 15, and the inner long hole 22 is movable corresponding to the outer long hole 15. And connected, and the control block 41 of the control handle 4 is penetrated through the outer long hole 15 and then penetrated into the inner long hole 22, and the longest distance of the outer long hole 15 is greater than the longest distance of the inner long hole 22. The control block 41 further includes a push portion 411, so when the user performs manipulation, he or she presses the control handle 4 and uses the pivot convex portion 13 as the pivot center point. When swinging, the end of the control handle 4 near the rear end 12 is away from the handle 1, the spring 3 pushes against the piston rod 2 with elastic force, and the clamp block 21 is away from the end surface of the handle 1; and the control handle 4 approaches When one end of the clamping block 21 is close to the rear end 12 of the handle 1, the pushing portion 411 of the control block 41 is pressed against one end of the inner long hole 22 and pushed, and the piston rod 2 gradually compresses the spring 3 to accumulate force. In addition, the clamp block 21 is close to the end surface of the handle 1, so that the approach and distance between the clamp block 21 and the end surface of the handle 1 can be reliably controlled, so that the user can quickly clamp or release the flat spoke 100. maintain operation.

Continuing with the above description, when controlling the control handle 4 of the present invention, in addition to being able to reliably control the displacement of the piston rod 2, it is also necessary to prevent the control handles 4 from colliding with each other due to being too close to the surface of the handle 1 when approaching the rear end 12. Therefore, as shown in Figures 4 and 7, a stop portion 412 is further recessed on the control block 41 on the side opposite to the push portion 411, and the stop portion 412 includes an upper stop surface 4121 and one side. Blocking surface 4122, the upper blocking surface 4121 and the side blocking surface 4122 are arranged perpendicular to each other. When the end of the control handle 4 close to the clamping block 21 approaches the handle 1, the upper blocking surface 4121 approaches the surface of the piston rod 2 at the same time. And when the upper stop surface 4121 abuts the outer surface of the piston rod 2, the clamping block 21 clamps the flat spoke 100 with the end surface of the handle 1, In this way, after one end of the control handle 4 approaches the rear end 12, the flat spoke 100 can be firmly clamped between the clamping block 21 and the end surface of the handle 1, and the control handle 4 will not collide with the handle 1, thereby protecting it. The integrity of the control handle 4 and the surface of the grip 1.

Continuing the above, in addition to anti-collision through the cooperation between the control block 41 and the piston rod 2, as shown in the fourth and fifth figures, the present invention further provides a shaft 23 at one end of the long hole 22 in the piston rod 2. And the shaft 23 is away from the clamping block 21, and the shaft 23 penetrates into the inner long hole 22 from the side of the piston rod 2, and the pushing portion 411 of the control block 41 is along the outer surface of the shaft 23 Slide, and a limit groove 16 is further recessed in the wall of the movable groove 14 of the handle 1 and corresponding to the outer long hole 15. As mentioned above, when the control handle 4 is pressed toward the handle 1, the control block 41 is After the push portion 411 moves smoothly along the outer arc surface of the shaft 23, the bottom end of the control block 41 will gradually approach and abut against the bottom surface of the limit groove 16, and the bottom end of the control block 41 abuts against the limit groove 16. After being positioned at the bottom of the slot 16, the end of the control handle 4 close to the clamping block 21 will maintain a distance from the outer surface of the handle 1. This can prevent the user from pressing the control handle 4 too hard and causing the handle 1 to contact the clamping block. 21 damages the flat spokes 100, and can avoid the collision between the control handle 4 and the grip 1.

In addition, in the assembly of the control handle 4 and the pivot protrusion 13 of the present invention, two pivot pieces 42 are further protruded from one end of the pivot protrusion 13 of the control handle 4, and the two pivot pieces 42 are spaced apart. A slot 43 is provided and formed, and the pivot protrusion 13 is inserted into the slot 43. A pivot shaft 44 is provided through the two pivot pieces 42 and the pivot protrusion 13. Through the two pivot pieces 42, in addition to In addition to forming a pivotable combination, the pivot convex portion 13 can also block the side surfaces of the pivot convex portion 13 through the arrangement of the two pivot pieces 42, thereby forming protection to prevent foreign objects from directly colliding with the pivot convex portion 13. Please see Shown in the third picture. In addition, in order to prevent the end surfaces of the clamp block 21 and the rear end 12 of the handle 1 from damaging the appearance when clamping the flat spoke 100, the clamp block 21 is designed to be made of scratch-resistant metal material. , the clamping block 21 can also be made of soft material (as shown in Figure 9), or covered on the outer surface of the metal clamping block 21 (not shown); in addition, in addition to being made of soft material or covered with In addition, two washers 5 can be further installed on the end of the piston rod 2 connected to the clamp block 21. One of the washers 5 is attached to the clamp block 21, and the other washer 5 is attached to the rear end of the handle 1. 12 end face, so that when the control handle 4 is not pressed, when the clamp block 21 of the piston rod 2 is away from the end face of the rear end 12 of the handle 1, the two washers 5 are driven away from each other. When the flat spoke 100 enters the clamp block 21 and After holding the rods 1 between each other, press the control handle 4 to indirectly control the two washers 5 to approach each other to clamp the flat spoke 100. The arrangement of the two washers 5 can also prevent the outer surface of the flat spoke 100 from being damaged. Please see Chapter 1. Shown in the ten pictures.

Finally, when using the control handle 4 of the present invention, it is basically configured that the end of the control handle 4 close to the clamping block 21 further includes an inner surface 45 facing the handle 1, and an inner surface 45 opposite to the inner surface 45. The outer surface 46 and the inner surface 45 are smooth surfaces, and the outer surface 46 is a convex arc surface. By utilizing the convex arc surface of the outer surface 46, it can match the user's hand when holding it. The curved shape is convenient for applying force and pressing, as shown in the first figure; in addition, another embodiment of the present invention is to provide a plurality of gripping grooves 461 on the outer surface 46, and each gripping groove 461 can be When the user's hand holds it, the fingers of the hand can correspond to and accommodate each grip groove 461, making the user's holding operation smoother, as shown in the eighth figure.

1: Grip

11:Front end

12:Rear end part

15:Outer long hole

2:piston rod

21:Clamp block

4: Control handle

41:Control block

42:pivot film

44:Pivot

45:Inner surface

46:Outer surface

Claims (10)

A spoke clamping device is mainly used to clamp a flat spoke, which includes: A handle has a pivot convex portion at one end, and the other end of the handle is recessed toward the pivot convex portion to form a movable groove; A piston rod has one end inserted through the slot of the movable groove, and a clamping block is provided at the other end of the piston rod. In addition, a spring is installed in the movable groove. The two ends of the spring spring against the bottom surface of the movable groove and the movable groove respectively. The end face of the piston rod, the spring uses elastic force to push the piston rod to move in the movable groove, and makes the clamping block approach and move away from the end face of the rod grip; A control handle, one end of which is pivoted on the pivot convex portion, and a control block is protruding from the side of the control handle facing the handle. The control block penetrates through the surface of the handle and controls the movement of the piston rod. , the other end of the control handle moves away from and closer to the grip; Among them, the pivot assembly of the control handle and the pivot convex part is used, coupled with the elastic force of the spring, to make the end of the piston rod equipped with the clamping block approach and stay away from the end surface of the gripping rod. When the clamping block approaches the end surface of the gripping rod, the This flat spoke can be clamped. The spoke clamping device of claim 1, wherein the grip rod is further provided with an outer long hole, the outer long hole is connected to the movable groove, and the piston rod is provided with an inner long hole corresponding to the outer long hole, and the inner long hole is The system is movable corresponding to the outer long hole and connected, and the control block of the control handle penetrates through the outer long hole and then penetrates into the inner long hole. The spoke clamping device of claim 2, wherein the control block further includes a push portion, the control handle swings with the pivot convex portion as the pivot center point, and the end of the control handle close to the clamping block is away from the grip. When the lever is pressed, the spring pushes against the piston rod with elastic force, and the clamping block is away from the end surface of the lever; and when the end of the control handle close to the clamping block is close to the lever, the pushing part of the control block is against the inner long hole One end is pushed, and the piston rod gradually compresses the spring to accumulate force, and the clamping block is close to the end surface of the holding rod. The spoke clamping device of claim 3, wherein an axle rod is further provided at one end of the long hole in the piston rod, and the axle rod is away from the clamping block, and the axle rod penetrates into the piston rod from the side of the piston rod. There is an inner long hole, and the push portion of the control block slides along the outer surface of the shaft. The spoke clamping device as claimed in claim 1, wherein one end of the pivot convex portion of the control handle pivot group is further provided with two pivot pieces, the two pivot pieces are arranged at a distance and form a slot, and the pivot convex portion is It is inserted into the slot, and a pivot shaft is provided through the two pivot pieces and the pivot protrusion. The spoke clamping device according to any one of claims 1 to 5, wherein an end of the control handle close to the clamping block further includes an inner surface facing the handle, and an outer surface opposite to the inner surface. , and the outer surface is concavely provided with a plurality of gripping grooves, and each gripping groove is used to accommodate each finger when the hand is held. The spoke clamping device as claimed in any one of claims 1 to 5, wherein the end of the control handle close to the clamping block further includes an inner surface facing the handle, and an outer surface opposite to the inner surface, The inner surface is a smooth surface, and the outer surface is a convex arc surface. The spoke clamping device of claim 3, wherein the control block is further recessed to form a stopper on the side opposite to the pusher, and the stopper includes an upper stopper surface and a side stopper surface, The upper stop surface and the side stop surface are arranged perpendicular to each other. When the end of the control handle close to the clamping block is close to the grip rod, the upper stop surface approaches the surface of the piston rod at the same time, and the upper stop surface abuts the piston. When the outer surface of the rod is fixed, the clamping block clamps the flat spoke with the end surface of the rod. The spoke clamping device of claim 1, wherein one end of the piston rod connected to the clamping block is further covered with two washers, one of which is attached to the clamping block, and the other washer is attached to the bottom of the handle. end face. The spoke clamping device of claim 2, wherein the movable groove wall of the handle is further recessed with a limiting groove corresponding to the outer long hole. When the control handle is pressed toward the handle, the bottom of the control block The end system gradually approaches and abuts the bottom surface of the limit groove, and after the bottom end of the control block abuts the bottom of the limit groove, the end of the control handle close to the clamping block will maintain a distance from the outer surface of the handle.

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