TWI838714B - Internal transmission clutch drive mechanism - Google Patents

Abstract

This case is a driving mechanism for implementing the internal transmission clutch by axial displacement of the driving shift lever of the internal transmission of a bicycle, which mainly includes: a wheel shaft, a control claw slider, a lever, an electric variable slider, a lever sleeve, an electric variable bushing and a control ring. The driving mechanism for implementing the internal transmission clutch by axial displacement of the lever is that the magnetic field attraction and repulsion force of the magnet of the control ring drives the electric variable slider to rotate or move laterally to drive the lever axial displacement, so as to achieve the clutch switching of the clutch structure of the transmission controlled by the control claw slider on the lever.

Description

Internal transmission clutch drive mechanism

A clutch driving mechanism for implementing a clutch structure of a transmission in a bicycle by means of a shift lever.

It is generally known that bicycle transmissions are divided into traditional exposed transmissions and innovative internal transmissions hidden in the wheel hub. The speed control methods of related transmissions include manual control and electric control.

In the technology of electric control transmission speed change, there are known previous technical creations such as I 733206, I 722345, M609030, M590562, I 647142, I 615317, I 610845, I 604989, I 575847, I383919, I 243138 and I 238800. It is known from these known technical documents that the relevant technology development industry has continuously invested a lot of effort and investment in the electronic control of the transmission, aiming to develop an ideal technical product that can meet the actual industrial applicability and economic benefits.

However, although the known creative technologies all have the function of electronically controlled speed change, due to the entanglement and limitations of different creative thinking and technical ideas, the relevant technical research and development has complex structure, many components, high cost, and insufficient volume and weight. The corresponding industrial applicability and economic benefits are not ideal.

Therefore, how to further develop technological innovations with simple structure, fewer components, low cost, compact size and weight, and excellent industrial applicability and economic benefits is the technical research and development goal that the relevant industry hopes to break through.

The purpose of the invention of the "driving mechanism of the internal transmission clutch" is:

(1) Provide an internal transmission clutch drive mechanism with a simple structure, few components, low cost, light size and good practicality.

(2) Provide a safe, practical, industrially applicable and economically efficient internal transmission clutch drive mechanism.

The driving mechanism of the transmission clutch in this case mainly includes: axle, control claw slider, lever, electric variable slider, lever sleeve, electric variable bushing and control ring, and its characteristics are:

The axial displacement of the lever is driven by the magnetic field attraction and repulsion of the control ring to drive the electric variable slider to rotate and drive the axial displacement of the lever, so that the control claw slider on the lever controls the clutch switching of the transmission clutch structure;

The axle is provided with an inner concave guide groove for the lever to be placed in, a protruding control claw slider is provided at the front end of the lever, and a tooth bar is provided at the rear end of the lever; the rear end of the lever is inserted into the guide groove provided in the lever sleeve, and a through-connected assembly opening is provided between the guide groove and the outside of the lever sleeve, and an electrically variable slider engaged with the tooth bar of the rear end of the lever is provided in the assembly opening;

The electric variable slider is provided with a tooth surface that can engage with the rear teeth of the lever, and an N-pole or S-pole permanent magnet is provided on the electric variable slider;

An electric variable sleeve is provided on the outside of the lever sleeve, and the lever sleeve is sleeved in a control ring that can be positioned and rotated. A permanent magnet or an electromagnetic magnet is provided on the inner surface of the control ring, and a gear that rotates under external force is provided on the outside of the control ring;

The axial displacement of the lever is driven by the magnetic field attraction and repulsion of the control ring to push the electric variable slider to move horizontally to drive the axial displacement of the lever, so that the control claw slider on the lever controls the clutch switching of the transmission clutch structure;

The axle is provided with an inner concave guide groove for the lever to be placed in, a protruding control claw slider is provided at the front end of the lever, and an electrically variable slider with an N-pole or S-pole permanent magnet is provided at the rear end of the lever; the rear end of the lever is inserted into the guide groove provided in the lever sleeve, and the electrically variable slider at the rear end of the lever is located in the assembly opening that is connected through the guide groove and the outside of the lever sleeve;

An electric variable sleeve is provided on the outside of the lever sleeve, and the lever sleeve is sleeved in a control ring that can be positioned and rotated. A permanent magnet or an electromagnetic magnet is provided on the inner surface of the control ring, and a gear that rotates under external force is provided on the outside of the control ring.

1: Axle

11: Concave guide groove

2: Claw control slider

3:Pull

31: Tooth

4: Electric variable slider

41: Teeth

5: Rod sleeve

51:Guide channel

52: Assembly port

6: Electric transformer sleeve

7: Control ring

71: Permanent magnet or electromagnetic magnet

72: Gear

Figure 1: Assembly diagram of the first embodiment of this invention.

Figure 2: Sectional view of the first embodiment of this case after assembly.

Figure 3: Schematic diagram of the first implementation example (swing type) of this case (moving the stick backward).

Figure 4: Schematic diagram of the action of the first embodiment (swing type) of this case creation (swinging forward).

Figure 5: Schematic diagram of the action of the second embodiment of the invention (direct-push single-pole control ring and double-pole electric variable slider) (push lever backward).

Figure 6: Schematic diagram of the second embodiment of the present invention (direct-push single-pole control ring and double-pole electric variable slider) (push lever forward).

Figure 7: Schematic diagram of the third embodiment of the present invention (direct-push bipolar control ring and unipolar electric variable slider) (push lever backward).

Figure 8: Schematic diagram of the third embodiment of the present invention (direct-push bipolar control ring and unipolar electric variable slider) (push lever forward).

Figure 9: Schematic diagram of the fourth embodiment of the present invention (direct-push bipolar control ring and bipolar electric variable slider) (push lever backward).

Figure 10: Schematic diagram of the fourth embodiment of the present invention (direct-push bipolar control ring and bipolar electric variable slider) (push lever forward).

Please refer to Figures 1 to 4, which show the first embodiment of the invention "Internal transmission clutch drive mechanism", Figures 5 to 6, which show the second embodiment, Figures 7 to 8, which show the third embodiment, and Figures 9 to 10, which show the fourth embodiment. As shown in the figures, although there are four embodiments, they all belong to the same technical scope and effect, and their main creative combination elements all include ：The axle 1, the control claw slider 2, the lever 3, the electric variable slider 4, the lever sleeve 5, the electric variable bushing 6 and the control ring 7 are composed; the axial displacement of the lever 3 is driven by the magnetic field attraction and repulsion of the control ring 7 to push the electric variable slider 4 to rotate (swing type) or move horizontally (direct push type) to drive the axial displacement of the lever 3, so as to achieve the clutch switching of the clutch structure of the transmission controlled by the control claw slider 2 on the lever 3.

Please refer to the first embodiment (swing type) shown in Figures 1 to 4. The axle 1 is provided with an inner concave guide groove 11 for the lever 3 to be placed, the front end of the lever 3 is provided with a protruding control claw slider 2, and the rear end of the lever 3 is provided with a gear 31; the rear end of the lever 3 is extended into the guide groove 51 provided in the lever sleeve 5, and the guide groove 51 and the outside of the lever sleeve 5 are connected to each other through the assembly opening 52, and the assembly opening 52 is provided with an electric variable slider 4 that engages with the gear 31 of the rear end of the lever 3. As shown in the figure, the electric variable slider 4 is provided with a tooth surface 41 that can engage with the rear tooth bar 31 of the lever 3, and the electric variable slider 4 is provided with N-pole and S-pole permanent magnets; the lever sleeve 5 is provided with an electric variable bushing 6 on the outside, and after the electric variable bushing 6 is provided on the outside of the lever sleeve, it is sleeved in a control ring 7 that can be positioned and rotated, so that the electric variable bushing 6 is placed between the lever sleeve 5 and the control ring 7. The inner ring surface of the control ring 7 is provided with N-pole and S-pole permanent magnets or electromagnets 71, and the outer part of the control ring 7 is provided with a gear 72 that rotates by an external force. When the gear 72 rotates by a predetermined angle by an external force, the control ring 7 rotates synchronously by a predetermined angle, so that the N-pole or S-pole permanent magnets or electromagnets 71 provided on its inner ring surface switch different magnetic poles corresponding to the N-pole or S-pole of the electric variable slider 4.

As shown in the first embodiment (swing type) in FIG3 , when the control ring 7 rotates a predetermined angle so that the S-pole permanent magnet or electromagnetic iron 71 provided on its inner ring surface corresponds to the electric variable slider 4, the electric variable slider 4 is rotated counterclockwise by using the magnetic field attraction and repulsion force, and its tooth surface 41 engages with the tooth bar 31 of the lever 3 to cause the lever 3 to move axially and backward.

As shown in the first embodiment (swing type) in FIG4 , when the control ring 7 rotates a predetermined angle again, so that the N-pole permanent magnet or electromagnetic iron 71 provided on its inner ring surface corresponds to the electric variable slider 4, the electric variable slider 4 is rotated clockwise by using the magnetic field attraction and repulsion force, and its tooth surface 41 engages with the tooth bar 31 of the lever 3 to make the lever 3 move forward in the axial direction.

Please refer to the second embodiment (direct-push single-pole control ring and bipolar electric variable slider) shown in Figures 5 and 6. The axial displacement of the lever 3 is driven by the magnetic field attraction and repulsion of the control ring 7 to push the electric variable slider 4 to move horizontally to drive the axial displacement of the lever 3, so as to achieve the clutch switching of the clutch structure of the transmission controlled by the claw slider on the lever 3.

As shown in FIG5 , the second embodiment (a direct-push type single-pole control ring and a bipolar electric variable slider) is provided with a concave guide groove 11 for inserting the lever 3 on the axle 1, and a protruding control claw slider 2 is provided at the front end of the lever 3. The rear end of the lever 3 is inserted into the guide groove 51 provided in the lever sleeve 5. The guide groove 51 and the outer part of the lever sleeve 5 are connected to each other through the assembly opening 52. The second embodiment (direct-push type) is different from the first embodiment only in that the electric variable slider 4 fixed to the rear end of the lever 3 is provided in the assembly opening 52. When the control ring 7 rotates a predetermined angle so that the S-pole permanent magnet or electromagnetic 71 provided on its inner ring surface corresponds to the electric variable slider 4, the magnetic field attraction and repulsion force is used to cause the electric variable slider 4 to move backward and cause the lever 3 to move backward in the axial direction.

As shown in the second embodiment (direct-push unipolar control ring and bipolar electric variable slider) in FIG6, when the control ring 7 is rotated by a predetermined angle so that the N-pole permanent magnet or electromagnetic iron 71 provided on its inner ring surface corresponds to the electric variable slider 4, the magnetic field attraction and repulsion force is used to make the electric variable slider 4 move forward and cause the lever 3 to move forward axially.

As shown in the third embodiment (direct-push bipolar control ring and unipolar electric variable slider) in FIG7 and FIG8, when the control ring 7 rotates a predetermined angle so that the N-pole or S-pole permanent magnet or electromagnet 71 provided on its inner ring surface corresponds to the electric variable slider 4, the magnetic field attraction and repulsion force is used to make the electric variable slider 4 move forward or backward, thereby making the lever 3 move forward or backward in the axial direction.

As shown in FIG9 and FIG10 , in the fourth embodiment (a direct-push bipolar control ring and a bipolar electric variable slider), when the control ring 7 rotates a predetermined angle so that the N-pole or S-pole permanent magnet or electromagnet 71 provided on its inner ring surface corresponds to the electric variable slider 4, the magnetic field attraction and repulsion force is used to cause the electric variable slider 4 to move forward or backward, thereby causing the lever 3 to move forward or backward in the axial direction.

Therefore, the axial displacement of the lever 3 in the first to fourth embodiments of the present invention is driven by the magnetic field attraction and repulsion of the control ring 7 to drive the electric variable slider 4 to rotate (swing type) or move horizontally (direct push type) to drive the axial displacement of the lever 3 forward or backward, so as to achieve the clutch switching of the clutch structure of the transmission controlled by the claw slider 2 on the lever 3.

The above-mentioned creation of this case can surely and effectively produce the following practical benefits:

(1) It can provide an internal transmission clutch drive mechanism with a simple structure, few components, low cost, light size, and good practicality.

(2) It can provide a safe, practical, industrially applicable and economically efficient internal transmission clutch drive mechanism.

1: Axle

11: Concave guide groove

2: Claw control slider

3:Pull

4: Electric variable slider

5: Rod sleeve

6: Electric transformer sleeve

7: Control ring

71: Permanent magnet or electromagnetic magnet

72: Gear

Claims (10)

A driving mechanism of an internal transmission speed clutch comprises: a wheel shaft provided with an inner concave guide groove for a lever to be placed in, a control claw slider protrudingly arranged at the front end of the lever, a lever that can be positioned in the inner concave guide groove of the wheel shaft for axial displacement, an electric variable slider arranged in the lever sleeve, a lever sleeve provided with a guide groove for the rear end of the lever to extend through, and a control claw slider arranged in the lever sleeve. It is composed of an electric variable bushing outside the rod sleeve and a control ring placed outside the electric variable bushing and capable of positioning and rotating. Its characteristics are: the axial displacement of the lever is driven by the magnetic field attraction and repulsion of the control ring to drive the electric variable slider to rotate and drive the axial displacement of the lever forward or backward, so as to achieve the clutch switching of the clutch structure of the transmission controlled by the control claw slider on the lever. According to the driving mechanism of the transmission clutch described in Item 1 of the patent application, the rear section of the lever is provided with a tooth bar; the tooth bar is extended to the assembly opening between the guide groove provided in the lever sleeve and the outside of the lever sleeve, and an electric variable slider engaged with the tooth bar of the rear section of the lever is provided in the assembly opening. According to the driving mechanism of the transmission clutch described in Item 1 of the patent application scope, the electric variable slider is provided with a tooth surface that can engage the rear teeth of the shift lever, and an N-pole or S-pole permanent magnet is provided on the electric variable slider. According to the driving mechanism of the transmission clutch described in Item 1 of the patent application, after the lever sleeve is provided with an electric variable bushing on the outside, it is sleeved in a control ring that can be positioned and rotated, so that the electric variable bushing is sleeved between the lever sleeve and the control ring. According to the driving mechanism of the internal transmission clutch described in Item 1 of the patent application scope, an N-pole or S-pole permanent magnet or electromagnet is provided on the inner ring surface of the control ring, and a gear that rotates under external force is provided on the outside of the control ring. A driving mechanism of an internal transmission speed clutch comprises: a wheel shaft provided with an inner concave guide groove for a lever to be placed in, a control claw slider protrudingly arranged at the front end of the lever, a lever, an electric variable slider fixed on the rear end of the lever, a lever sleeve provided with a guide groove for the rear end of the lever to extend through, and a It is composed of an electric variable bushing and a control ring which is arranged outside the electric variable bushing and can be positioned and rotated. Its characteristics are: the axial displacement of the lever is driven by the magnetic field attraction and repulsion of the control ring to push the electric variable slider to move horizontally to drive the axial displacement of the lever forward or backward, so as to achieve the clutch switching of the clutch structure of the transmission controlled by the control claw slider on the lever. According to the driving mechanism of the transmission clutch described in Item 6 of the patent application, the rear section of the lever is an assembly opening extending between the guide groove provided on the lever sleeve and the outside of the lever sleeve, and an electric variable slider fixed on the rear section of the lever is provided in the assembly opening. According to the driving mechanism of the transmission clutch described in Item 6 of the patent application scope, the electric variable slider is provided with an N-pole or S-pole permanent magnet. According to the driving mechanism of the transmission clutch described in Item 6 of the patent application, after the lever sleeve is provided with an electric variable sleeve on the outside, it is sleeved in a control ring that can be positioned and rotated, so that the electric variable sleeve is sleeved between the lever sleeve and the control ring. According to the driving mechanism of the internal transmission clutch described in Item 6 of the patent application scope, an N-pole or S-pole permanent magnet or electromagnet is provided on the inner ring surface of the control ring, and a gear that rotates under external force is provided on the outside of the control ring.

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