TW201917304A - One-way clutch including a rotary brake body, a plurality of rollers, two linkage ring sheets and at least one homing means, and allowing the amount of rollers to be raised for increasing torque - Google Patents

Abstract

This invention relates to a one-way rotary brake with low friction resistance including a rotary brake body, a plurality of rollers, two linkage ring sheets and at least one homing means. The rotary brake body has an inner annular surface and two side surfaces, wherein the inner annular surface is annularly provided with a plurality of accommodating grooves spaced with intervals and matched with the rollers, each of the accommodating grooves is provided with a clamping end and a detaching end, a clamping depth of the clamping end is smaller than a detaching depth of the detaching end. In addition, the two side surfaces of the rotary brake body are respectively provided with a ring groove. The plurality of rollers are accommodated in the respective accommodating grooves of the rotary brake body, and can be displaced between the clamping ends and the detaching ends. The rollers are columnar and have a diameter greater than the clamping depth of the clamping end of each of the accommodating grooves of the rotary brake body and smaller than the detaching depth of the detaching end of the rotary brake body. Moreover, the rollers are respectively provided with a limiting stud at two opposite ends. The two linkage ring sheets are respectively disposed at the ring grooves in the two side surfaces of the rotary brake body. The two linkage ring sheets may generate an angular rotation. A plurality of linkage holes are provided in the linkage ring sheets. The linkage holes have a diameter greater than that of the limiting studs and smaller than that of the rollers. The limiting studs are disposed in the linkage holes in a penetrating manner, so that when the linkage ring sheets generate the angular rotation, all the rollers are driven synchronously.

Description

One-way rotary brake with low frictional resistance

The present invention relates to a rotary brake, and more particularly to a structural improvement of a one-way rotary brake applied to a power machine to provide a one-way transmission torque, which improves frictional resistance during rotational braking.

At present, one-way rotary brakes mainly include ratchet type 60, elastic friction type 70 and magnetic friction type 80:

As shown in the first figure, a ratchet type 60 is provided with a plurality of springs 62 on a mandrel 61, and in the normal state, the same number of complex ratchet teeth 63 are pushed toward a ratchet 64 to rotate the mandrel 61 in one direction. The ratchet 63 can be driven by the ratchet 64. When the other direction is rotated, the ratchet 63 compresses the spring 62 to bounce around the ratchets 64 and idles; when the ratchet 60 is idling, the ratchet teeth 63 are pushed by the spring 62 to the ratchet 64 to generate a lot of The resistance to beating.

As shown in the second figure, the elastic friction type 70 is formed by using a plurality of springs 72 on a bearing ring 71 to normally push the same number of the plurality of friction members 73 toward a mandrel 74, so that the friction member 73 is displaced by the compression spring when rotating in one direction. 72 is idling in conjunction with the rotation of the mandrel 74. When the other direction is rotated, the friction member 73 is pushed forward by the spring 72, and the bearing member 71 and the spindle 74 are simultaneously driven by the friction member 73. The elastic friction type 70 is idling. Between the friction member 73 and the mandrel 74, the friction members 73 are urged by the springs 72 to generate a plurality of elastic resistances between the mandrel 74 and the bearing ring 71.

The resistance of the above-mentioned springs 62, 72 and the rolling resistance design increase the resistance of the one-way rotary brake to idling. For example, when mounted on a bicycle, the resistance of the idling greatly reduces the sliding distance when the bicycle is not stepping on, so It can reduce the resistance of the jump or the resistance of rolling. When riding a bicycle, the same distance will be more labor-saving.

As shown in the third, fourth and fifth figures, the magnetic friction type 80 is used to set a plurality of latching grooves 82 on a bearing ring 81, and a magnet 83 is arranged at the bottom of each of the latching slots 82. A friction member 84 is disposed in each of the card slots 82 for magnetically positioning the magnet 83. The plurality of magnets 83 are normally attracted to the friction members 84 to a mandrel 85; when a bearing ring 81 rotates, the friction The member 84 slides on the magnet 83 and rotates in conjunction with the rotation of the mandrel 85. When the bearing ring 81 rotates in the other direction, the friction member 84 is magnetically attracted back by the magnet 83, and the bearing is simultaneously clamped by the friction member 84. The ring 81 and the mandrel 85 are driven; when the idling is performed, the friction member 84 generates a resistance to the mandrel 85, and the resistance is that each of the magnets 83 attracts the magnetic resistance of each of the friction members 84.

It can be seen from the foregoing embodiments that the mandrel 61 of the ratchet type 60 interlocks each ratchet 63 of the ratchet 64 to require the same number of springs 62; the mandrel 74 of the elastic friction type 70 interlocks with each of the friction members 73 of the bearing ring 71. The same number of springs 72 are required; the spindle 85 of the magnetic friction type 80 interlocks with each of the friction members 84 of the bearing ring 81 requiring the same number of magnets 83; each of the springs 62, 72 and each of the magnets 83 are idling At the same time, a resistance is generated to the mandrels 61, 74, 85, which reduces the sliding distance when the bicycle is not stepped on. Therefore, it is known that the smaller the number of the springs 62, 72 or the magnet 83 is, the smaller the resistance is, and the spring 62, 72 or the magnet 83 is matched with the same number of ratchet teeth 63 or friction members 73, 84. The number of ratchet teeth 63 or friction members 73, 84 is related to the torsion force, and the more the torque can be generated, the more the frictional resistance is reduced. Some of the torsion must be sacrificed, so the present invention improves the frictional resistance of the idling and increases the torque of the linkage. Insufficient torque in the ratchet design will cause the structure to collapse, and insufficient torque in the design of the friction member will cause slippage.

The inventor of the present invention has a large one-way rotary brake, and has a large frictional resistance with idling, and if the torque is insufficient, the structure collapses or the torque is insufficient, and the shortcomings of the slippage cannot be normally linked, which is the idea of the creation and the multi-party. After the investigation and trial sample test, and multiple corrections and improvements, the present invention was finally introduced.

The invention provides a one-way rotary brake with low friction resistance, comprising: a rotary brake body, a plurality of rollers, two interlocking ring pieces and at least one homing means; the rotary brake body has an inner annular surface and two side surfaces, the inner The toroidal spacer ring is matched with the plurality of rollers, and the pocket has a clamping end and a disengaging end, and the locking end has a clamping depth smaller than the disengaging depth of the disengagement end; and the rotary brake body has two Each of the side surfaces is provided with a ring groove; the plurality of rolling elements are received in the respective slots of the rotating brake body, and are displaceable between the locking end and the disengaging end, the rolling member has a diameter of a column, and the diameter is larger than the The locking depth of the locking end of the rotary brake body slot is smaller than the disengagement depth of the disengaged end of the rotary brake body slot, and the opposite ends of the rolling member are respectively provided with a limiting protrusion; the two interlocking ring pieces are respectively disposed on the Rotating the ring groove on both sides of the brake body, the two interlocking ring pieces can generate an angle of rotation, and the interlocking ring piece is provided with a plurality of interlocking holes, the linking hole is larger than the limit position And smaller than the column diameter of the rolling member, and the limiting boss disposed through the interlock hole, so that the rotation of the angle piece generation interlock ring, the rolling elements are all synchronized drive.

The number of the homing means is less than the number of the plurality of rollers for pushing the two interlocking ring normals from the disengaged end to the carding end, and the majority of the rolling elements are synchronously controlled by a small number of the homing means

The main purpose of the low-friction resistance one-way rotary brake of the present invention is to use a homing means to drive the two interlocking ring pieces, and then to synchronize the plurality of rolling elements with two interlocking ring pieces to achieve synchronous action, so as to increase the number of the rolling elements without using Other equal numbers of springs or magnets can greatly reduce the frictional resistance of the idling, but increase the number of rolling parts to increase the torque.

Referring to the sixth, seventh, eighth, ninth, tenth and eleventh drawings, the unidirectional rotary brake of the present invention is improved in structure, comprising: a rotary brake body 10 and a plurality of rollers 20 (This embodiment uses fourteen rollers 20), two interlocking ring pieces 30, at least one homing means 40, and two outer covers 50.

The rotary brake body 10 is composed of at least one annular body 10A. In the embodiment, the rotary brake body 10 is formed by stacking two-piece annular bodies 10A. The rotary brake body 10 has an inner annular surface 11 and two sides. 12, 13, the inner ring surface 11 of the spacer ring is matched with the plurality of slots 111 of the rollers 20 (the fourteen-receiving slots 111 are used in this embodiment), and the pockets 111 extend through the two sides 12 of the rotary brake body 10, The pocket 111 has a carding end 1111 and a disengagement end 1112. The carding end 1111 has a clamping depth h1 smaller than the disengaging depth h2 of the disengaged end. The two sides 12 and 13 of the rotating brake body 10 respectively A ring groove 14 is provided, and the ring groove 14 is provided with at least one homing groove 15 (the fourth homing groove 15 is used in this embodiment), and the number of the homing grooves 15 is less than the number of the plurality of rollers 20.

The plurality of rolling elements 20 are received in the respective slots 111 of the rotary brake body 10, and are displaceable between the locking end 1111 and the disengaging end 1112. The rolling member 20 is cylindrical and has a diameter d1. The locking depth h1 of the latching end 1111 of the rotary brake body 10 is smaller than the disengaging depth h2 of the disengaging end 1112 of the rotary actuator body 10, and the rolling member 20 is provided at one opposite end. Limit post 21 .

The two interlocking ring pieces 30 are respectively disposed at the annular grooves 14 of the two side faces 12 and 13 of the rotary brake body 10, and the two interlocking ring pieces 30 can generate an angular rotation, and at least one corresponding to the homing groove 15 is provided. The locating piece 31 is provided with a plurality of interlocking holes 32 (the fourteen connecting holes 32 are used in the embodiment), and the connecting hole 32 is larger than the limiting stud 21 and smaller than the diameter of the rolling member 20 D1, and the limiting stud 21 is disposed through the linking hole 32. When the interlocking ring piece 30 is angularly rotated, all the rolling elements 20 are synchronously driven.

The number of the homing means 40 is less than the number of the plurality of rollers 20, and the homing means 40 is an elastic spring or a magnetic magnet to return to the magnetic position by magnetic attraction, and the homing means 40 is a spring. The homing means 40 for the spring is disposed in the homing slot 15 and is biased against the rotary brake body 10 and the homing stop 31 for pushing the two interlocking ring segments 30 normally from the detachment end 1112 to the card end. 1111, the majority of the rolling members 20 are synchronously controlled by a small number of the homing means 40.

The two outer covers 50 are fixed to the two side faces 12 and 13 of the rotary brake body 10 for limiting the two interlocking ring pieces 30 so that the two interlocking ring pieces 30 can rotate at an angle without falling off.

When it is used for interlocking, as shown in FIG. 12, a mandrel 100 is disposed in the center of the rotating brake body 10 to contact the rollers 20, and the mandrel 100 is rotated forward, and the two interlocking ring pieces 30 are subjected to the return. The positional means 40 is also pushed forward, and the rollers 20 are simultaneously pushed by the homing means 40, so that the rollers 20 are moved from the disengaged end 1112 to the carding end 1111, and the rollers 20 are locked. The spindle 100 is coupled to the rotary brake body 10 to achieve interlocking.

In use, when it is used for idling, as shown in FIG. 13 , a mandrel 100 is disposed in the center of the rotating brake body 10 to contact the rollers 20 , and the mandrel 100 reversely pushes the rollers 20 , respectively. The roller 20 reversely pushes the two interlocking ring pieces 30 to reverse. The rollers 20 are moved from the locking end 1111 to the disengaging end 1112, and are idling at the disengaging end 1112, so that the rotating brake body 10 is not driven. Achieve idling.

In another embodiment, as shown in the fourteenth and fifteenth drawings, the homing means 40 is a magnet 40A and a magnetically attracted member 40B. The magnet 40A is disposed on the interlocking ring piece 30. The suction member 40B is provided in the rotary brake body 10 and corresponds to the magnet 40A. The magnet 40A magnetically attracts the magnetic member 40B to reach the homing means 40.

In another embodiment, as shown in FIG. 14 and FIG. 15 , the homing means 40 is a magnet 40A and a magnetically attracted member 40B. The magnet 40A is disposed on the interlocking ring piece 30. The suction member 40B is provided in the rotary brake body 10 and corresponds to the magnet 40A. The magnet 40A magnetically attracts the magnetic member 40B to reach the homing means 40.

From the structure of the above specific embodiment, the following benefits can be obtained:

1. The one-way rotary brake with low friction resistance of the present invention drives the two interlocking ring pieces 30 by means of a homing means 40, and then synchronizes the plurality of rolling elements 20 by two interlocking ring pieces 30 to increase the number of the rolling elements 20. However, it is not necessary to use other equal numbers of springs or magnets, which can greatly reduce the frictional resistance of the idling, but increase the number of the rolling elements 20 to increase the torque; in the past, fourteen or fourteen magnets were required to use the fourteen rollers. Therefore, the same fourteen-way resistance must be generated. The present invention utilizes four springs to control two interlocking ring pieces to synchronously interlock fourteen rollers. The number of springs less than the number of rollers can reduce the frictional resistance of the idling but increase the interlocking torque. .

2. The unidirectional rotary brake of the present invention has a low frictional resistance, and the interlocking ring piece 30 also has a limit of the rollers 20 in the pocket 111 of the rotary brake body 10, so as to prevent falling off when the mandrel 100 is not placed.

10‧‧‧Rotary brake body

10A‧‧‧ ring body

11‧‧‧ Inner torus

111‧‧‧ 容容

1111‧‧‧Card end

1112‧‧‧Without

12, 13‧‧‧ side

14‧‧‧ Ring groove

15‧‧‧ home slot

20‧‧ ‧roller

21‧‧‧Limited posts

30‧‧‧ linkage ring

31‧‧‧Homepage

32‧‧‧Linking holes

40‧‧‧ homing means

50‧‧‧ Cover

40A‧‧‧ Magnet

40B‧‧‧Magnetic parts

40C‧‧‧First magnet

40D‧‧‧second magnet

100‧‧‧ mandrel

H1‧‧‧Card depth

H2‧‧‧ Depth of depth

D1‧‧‧diameter

The first figure is a conventional ratchet structure diagram. The second figure is a conventional elastic friction structure diagram. The third figure is a conventional magnetic friction structure diagram. The fourth figure is a conventional magnetic friction friction linkage diagram. The fifth figure is a conventional magnetic friction idling diagram. Figure 6 is a perspective assembled view of the present invention. Figure 7 is a perspective exploded view of the present invention. Figure 8 is a semi-stereo combination of the present invention. Figure 9 is a front cross-sectional view of the present invention. Figure 11 is a partial cross-sectional enlarged view of a front view combination of the present invention. Figure 12 is a schematic diagram of the interlocking action of the present invention. Figure 13 is a schematic view of the idling action of the present invention. Figure 14 is a schematic view showing the interlocking action of another embodiment of the present invention. Fig. 15 is a schematic view showing the idling operation of another embodiment of the present invention. Figure 16 is a plan view showing a further embodiment of the present invention.

Claims (6)

A unidirectional rotary brake with low friction resistance, comprising: a rotary brake body, a plurality of rollers, two interlocking ring pieces and at least one homing means; the rotary brake body has an inner annular surface and two side surfaces, the inner annular surface spacing The plurality of loops cooperate with the pockets of the rollers, and the pocket has a clamping end and a disengagement end, the locking depth of the locking end is smaller than the disengagement depth of the disengagement end; and the two sides of the rotary brake body are respectively set The plurality of rolling elements are received in the respective slots of the rotating brake body, and are displaceable between the locking end and the disengaging end, the rolling member has a diameter of a column, and the diameter is larger than the rotating brake body The locking depth of the card slot of the slot is smaller than the depth of the disengagement end of the slot of the rotating brake body, and a limiting post is respectively disposed at opposite ends of the rolling member; the two interlocking ring pieces are respectively disposed on the rotating brake body At the ring groove of the two sides, the two interlocking ring pieces can generate an angle of rotation, and the interlocking ring piece is provided with a plurality of interlocking holes, the connecting hole is larger than the limiting stud and small a diameter of the rolling member, and a limiting protrusion is disposed in the linking hole, so that when the interlocking ring piece is angularly rotated, all the rolling elements are synchronously driven; the number of the homing means is less than the number of the plurality of rollers For pushing the two interlocking ring normals from the disengaged end to the carding end, the majority of the rolling elements are synchronously controlled by a few of the homing means. A one-way rotary brake of low frictional resistance as described in claim 1, wherein the rotary brake system is constructed of at least one annular body. The one-way rotary brake of the low-friction resistance of the first aspect of the invention, wherein the two sides of the rotary brake body cooperate with the ring groove to provide at least one homing groove, the number of the homing grooves is less than the plurality of rollers The number of the columns, the two interlocking ring pieces are provided with at least one returning piece corresponding to the homing groove; the homing means is an elastic spring, and the homing means is disposed in the homing groove and rebounds to the homing position sheet. The unidirectional rotary brake of the low frictional resistance of claim 1, wherein the homing means is a magnet and a magnetically attracted member, the magnet is disposed on the interlocking ring piece, and the magnetically attracted member is disposed on The rotary brake body and the magnet are magnetized by the magnet to reach the homing means. The unidirectional rotary brake of the low frictional resistance of claim 1, wherein the homing means is a magnet and a magnetically attracted member, the magnet is disposed on the interlocking ring piece, and the magnetically attracted member is disposed on The rotary brake body and the magnet are magnetized by the magnet to reach the homing means. The one-way rotary brake of the low friction resistance of claim 1, further comprising two outer covers fixed on both sides of the rotary brake body for limiting the two interlocking ring pieces, so that the The two interlocking ring pieces can produce an angle of rotation but do not fall off.