TWM563971U - Rear hub assembly - Google Patents

Abstract

A rear flower hub combination includes a flower hub, a pull spokes and a static spoke, which are mainly provided by a flower hub providing a straight pull spoke and a bent spoke, and the straight pull spoke is fixed to the flower The horizontal position of the hub is closer to the middle position of the hub than the horizontal position of the fixed spoke fixing hub, so that the vertical component of the straight pull spoke is greater than the horizontal component when the hub is rotated, thus increasing the tension of the straight pull spoke, Moreover, the horizontal component of the bent spoke is greater than the horizontal component of the straight pull spoke, and thus the bent spoke provides the lateral rigidity of the hub, thereby achieving the present invention to improve the torsion and lateral rigidity.

Description

Rear flower hub combination

Regarding the rear flower hub for bicycles, in particular, the straight pull spokes and the bent spokes are used at the same time, so that the flower hub operates with improved torsion and lateral rigidity as compared with conventional products.

Whether the bicycle travels smoothly or not, the wheel set is a key factor that occupies a considerable amount. The reason why the wheel can rotate smoothly depends entirely on the cooperation between the hub and the frame, in particular, the rotation of the wheel set is driven by the spokes connected between the wheel and the hub. Therefore, the manpower continuously tramples the pedal on the large plate, and the large disk synchronously drives the chain, so that the chain pulls the flywheel on the side of the flower hub, so that the flower hub continuously rotates, and the spoke pulls the rim, so the flower hub and the spoke are The fit is about the torsional rigidity of the wheel set. Excellent torsional rigidity can overcome the force variation of the bicycle's wheel set on curved and rugged roads.

At present, the types of flower hub woven spokes are generally radiant or cross-type. The so-called spokes adopting the radiant arrangement means that the spokes are arranged in a radial arrangement around the flower hub, and the spokes are arranged at equal angular intervals. The spoke cross type means that adjacent spokes are arranged in a crosswise manner and connected to the rim and the flower hub, and the cross-arranged spokes can also arrange different cross patterns according to the position of the rear wheel drive side. A new type is known today. The bicycle hub of the state, such as Taiwan's new patent No. M517688, can provide a bicycle hub with a combination of straight spokes and elbow spokes. However, in this patent, in addition to radiating a plurality of strip-shaped straight engaging holes in the hub, it is further provided in the second embodiment and the third embodiment that a plurality of elongated straight lateral holes are arranged along the hub, The design seriously damages the structural strength of the hub; in addition, when assembling the straight spokes and the hub, it is necessary to find the position of the straight engaging hole from the ring groove of the narrow concave space on the outer side of the hub, so that the straight spokes can be made. The shaft portion is provided with a straight engaging hole, and therefore, this type is quite troublesome and inconvenient to assemble. In other words, such a flower hub structure is quite disadvantageous for the installation of mass production.

The main purpose of the present invention is to provide a rear flower hub combination which has the effects of improving the torsion and the lateral rigidity, and avoids the drawback that the conventional technique provides a strip-shaped engaging hole and a long straight lateral hole which has the structural strength of the broken flower hub. It is a new type of rear flower hub combination.

In order to achieve the foregoing objects and effects, a rear flower hub assembly is provided, comprising: a flower hub having an intermediate section and a flower disc disposed at each end of the intermediate section, the dial having one of the intermediate sections a surface having an outer surface facing the outer side of the flower hub, wherein the inner surface is opposite to the outer surface; and the inner surface is convexly provided with a plurality of inner bumps and equidistantly radiated, and the plurality of inner bumps Forming a space between each other, wherein the plurality of inner bumps each have a continuous pull hole, and the two end ends of the straight pull hole face the space; the face plate has a plurality of bent holes of the ring and penetrates the inner surface An outer surface, and the plurality of bent holes have a hole end connected to the inner surface And facing the space; a plurality of pull spokes, each of which is a straight pull hole of the plurality of inner bumps, and the plurality of straight pull spokes are respectively fixed at the head end to the plurality of inner bumps Straightening the hole, and the shaft of the plurality of straight pull spokes extends outwardly through the space; and a plurality of static spokes are respectively threaded through the space to the outer surface And a hole end of the plurality of bent spokes is located on the inner surface of the plurality of bent spokes, and the shaft of the plurality of bent spokes is located on the outer surface of the faceplate and extends outwardly.

The detailed feature of the rear flower hub combination, wherein the positive rotation direction of the flower hub with the middle section as the axis is the forward direction, and when the inner bump rotates toward the forward direction, the head end of the straight pull spoke is first turned The shaft is oriented in the forward direction, and the curved spoke is turned from the shaft to the head end toward the forward direction.

The detailed feature of the rear flower hub combination, wherein the flower disk is provided with a plurality of auxiliary holes extending through the inner surface and the outer surface, and the plurality of auxiliary holes are used for the plurality of bending spokes, the plurality of auxiliary hole spacing rings Listed on the faceplate and located between the plurality of straight pull holes and the plurality of inner bumps.

The detailed feature of the rear flower hub combination, wherein the plurality of inner bumps are located at a position close to a circumference of the inner surface, and an annular space is formed between the plurality of inner bumps and the intermediate portion, and the annular space is connected to the space through.

The detailed feature of the rear flower hub combination, wherein the straight pull spoke is made of steel or carbon fiber, and the bent spoke is made of steel.

1‧‧‧Flower hub

11‧‧‧ Middle section

12‧‧‧Flower plate

121‧‧‧ inner surface

122‧‧‧ outer surface

123‧‧‧ Inner bumps

124‧‧‧Interval space

125‧‧‧ Straight pull hole

126‧‧‧Bend hole

127‧‧‧Circular space

128‧‧‧Auxiliary hole

13‧‧‧ratchet

2‧‧‧ Straight pull spokes

3‧‧‧Bent spokes

The first picture is a three-dimensional diagram of the creation combination.

The second figure is a three-dimensional schematic diagram of another perspective of the present creation.

The third figure is a schematic diagram of the installation of the straight pull spokes.

The fourth picture is a schematic diagram of the installation of bent spokes in this creation.

The fifth figure is a schematic plan view of the rear flower hub combination.

The sixth figure is a schematic cross-sectional view of the VI line segment of the first figure VI.

The seventh drawing is a schematic cross-sectional view of another embodiment of the present creation.

Referring to Figures 1 through 4 of the drawings, a rear flower hub assembly is disclosed, comprising: a flower hub 1, a plurality of pull spokes 2 and a plurality of static spokes.

The flower hub has a middle section 11 and two ends of the intermediate section 11 each provided with a face plate 12, and one of the face plates 12 is externally assembled to assemble a ratchet wheel 13 having one of the intermediate sections 11 The inner surface 121 has an outer surface 122 facing the outer side of the hub 1 and the inner surface 121 is opposite the outer surface 122. The intermediate section 11 has a hollow structure and is provided with a shaft core group (not shown), and the radial dimension of the aforementioned flower disk 12 is larger than the diameter of the intermediate section 11, and the aforementioned flower disk 12 and the middle section 11 are In the case of the integrated structure, a fixed type that is combined with each other may be adopted, and the disk 12 is a solid structure, and the disk 12 may be adopted as a hollow structure.

Further, the inner surface 121 is convexly provided with a plurality of inner bumps 123 and equidistantly radiated, and a plurality of inner bumps 123 are formed with a space 124 therebetween, and the plurality of inner bumps 123 each have a continuous hole 125. The two end ends of the straight hole 125 are facing the Space 124. The face plate 12 has a plurality of bent holes 126 of the ring and penetrates the inner surface 121 and the outer surface 122, and the plurality of bent holes 126 have a hole end communicating with the inner surface 121 and facing the space 124.

The plurality of straight pull spokes 2 are respectively inserted through the straight pull holes 125 of the plurality of inner bumps 123, and the plurality of straight pull spokes 2 are respectively fixed to the straight pull holes 125 of the plurality of inner bumps 123. And the shaft of the plurality of straight pull spokes 2 extends outward through the space 124 and assembles the rim (the rim is not disclosed in the drawings). The straight pull spoke 2 is made of steel or carbon fiber.

The plurality of bending spokes 3 are respectively disposed through the spacing space 124 toward the outer surface 122, and the head ends of the plurality of bending spokes 3 are snapped to the inner surface 121. The shaft of the plurality of bent spokes 3 is located on the outer surface 122 of the faceplate 12 and extends outwardly to form a rim (the rim is not disclosed in the drawings). The bent spokes 3 are made of steel.

The present invention adopts an inner protrusion 123 protruding from the inner surface 121 of the disk 12, and provides a straight pull spoke 2 through the straight pull hole 125 of the inner protrusion 123, so that the conventional technology can be overcome (Taiwan New Patent No. M517688) No.) The hub has a strip of straight-shaped joint holes arranged in a plurality of radiation arrangements to have structural strength defects. Moreover, the inner protrusion 123 protruding from the inner surface 121 of the flower disk 12 has the utility of providing the straight pull spoke 2 to be easily worn and fixed, and is not obscured or blocked by the line of sight of other parts of the flower hub 1 or installed, thereby overcoming The conventional technology (Taiwan New Patent No. M517688) is inconvenient to find a straight spoke in the ring groove of the narrow concave space on the outer side of the hub.

Please refer to the fifth figure, the creation flower hub 1 provides straight pull spokes 2 and When the bending spokes 3 are mounted together, the horizontal position of the fixed flower hub 1 of the straight pull spokes 2 is closer to the middle position of the intermediate portion 11 of the flower hub 1 than the horizontal position of the fixed spokes 3 of the bending spokes 3, thus the flower hub 1 When rotating, the component force in the y direction of the straight pull spoke 2 is greater than the component force in the x direction, thus increasing the tension of the straight pull spoke 2, and the x-direction component of the bent spoke 3 is greater than the x direction of the straight pull spoke 2 The force component, such a curved spoke 3, provides the lateral rigidity of the flower hub 1, thereby achieving the effect of improving the torsional and lateral rigidity as claimed in the present invention.

In addition, the present invention can change the axial direction of the intermediate section 11, the thickness of the faceplate 12, the size of the inner protrusion 123 from the face of the faceplate 12, etc., and change the middle section of the straight pull hole 125 and the bend hole 126. 11 center position, in order to adjust the force of the flower hub (twist and lateral rigidity).

In particular, when a disc brake wheel set uses a straight-pull type spoke, its static spoke will bend due to braking (because the braking force is much larger than the driving force). However, the general frame brake does not have this problem, because the frame brake is used for braking on both sides of the wheel frame, so the frame brake can not withstand the force of the static spoke, but the disc brake wheel set will. Therefore, in the case of the rear hub of the case, the pull spoke adopts the straight pull spoke 2, and the static spoke uses the bent spoke 3 to avoid the spoke bend generated when the disc brake wheel brake is applied. Folding phenomenon.

Please refer to the sixth figure. The figure defines the forward rotation direction of the hub 1 with the middle section 11 as the axis (as indicated by the arrow in the figure) as the forward direction, and the inner protrusion 123 rotates toward the forward direction. At the same time, the head end of the straight pull spoke 2 is first turned to the forward direction, and the bent spoke 3 is turned from the shaft to the head end toward the forward direction.

It is to be noted that the plurality of inner bumps 123 are located near the peripheral edge of the inner surface 121, and an annular space 127 is formed between the plurality of inner bumps 123 and the intermediate portion 11, and the annular space 127 and the space are 124 is connected.

The present invention has another embodiment, and as shown in the seventh figure, the disk 12 is provided with a plurality of auxiliary holes 128 extending through the inner surface 121 and the outer surface 122, and the plurality of auxiliary holes 128 are used for plural The bending spokes 3 are disposed, and the plurality of auxiliary holes 128 are spaced apart from the disk 12 and disposed between the plurality of straight holes 125 and the plurality of inner protrusions 123. In this way, the straight pull spokes 2 and the bent spokes 3 are arranged equidistantly on the face plate 12.

Claims (5)

A rear flower hub assembly comprising: a flower hub having an intermediate section and each end of the intermediate section being provided with a face plate having an inner surface facing the intermediate section and having an outer side facing the flower hub An outer surface, wherein the inner surface is opposite to the outer surface; and the inner surface is convexly provided with a plurality of inner bumps and equidistantly radiated, and a space is formed between the plurality of inner bumps. Further, the plurality of inner bumps each have a continuous pull hole, and both end ends of the straight pull hole face the space; the face plate has a plurality of bent holes of the ring row and penetrates the inner surface and the outer surface, and the plurality of bends a hole end of the hole is connected to the inner surface and faces the space; a plurality of straight pull spokes are respectively inserted through the straight pull holes of the plurality of inner bumps, and the plurality of straight pull spokes are respectively fixed at the head end a straight pull hole of the plurality of inner bumps, wherein the shaft of the plurality of straight pull spokes extends outwardly through the space; and a plurality of bent spokes respectively pass the plurality of bends through the space to the outer surface a folded hole, and the head end of the plurality of bent spokes is tied Positioned in the inner surface and the plurality of spokes bent shaft located on the outer surface of the faceplate and extending outward. After the hub assembly is described in claim 1, wherein the forward direction of the hub with the intermediate section as the axis is defined as the forward direction, and the inner bump is rotated toward the forward direction, the head of the straight pull spoke is first The end turns into a direction in which the shaft is oriented, and the bent spoke is turned from the shaft to the head end toward the forward direction. The flower hub combination according to claim 2, wherein the flower disk is provided with a plurality of auxiliary holes extending through the inner surface and the outer surface, and the plurality of auxiliary holes are used for the plurality of bending holes And a plurality of auxiliary hole spacing rings are disposed on the disk and located between the plurality of straight holes and the plurality of inner bumps. The flower hub combination according to any one of claim 1 to claim 3, wherein the plurality of inner bumps are located at a position close to a circumference of the inner surface, and an annular space is formed between the plurality of inner bumps and the intermediate portion And the annular space is in communication with the spacing space. The flower hub combination is as described in claim 4, wherein the straight pull spoke is made of steel or carbon fiber, and the bent spoke is made of steel.