TWM589668U - Full pneumatic inverted shock-absorbing front fork - Google Patents

Abstract

The invention relates to a full-pneumatic inverted fork shock-absorbing front fork, which is provided with a pair of connection holes on a shoulder cover; an outer pipe system is respectively connected to the connection holes of the shoulder cover body; a pair of inner tubes are respectively sleeved In the receiving seat of the two outer tubes, a piston with a through hole is respectively provided between each inner tube and the inner of the outer tube, and at least one leakage oil seal is provided between the outer parts to provide the inner tube The outer tube and the outer tube can be moved relatively to form a pair of variable compression gas chambers; and a pair of claw seats are respectively sleeved on the bottom ends of the two inner tubes; the variable compression gas chamber is filled with high-pressure gas, and Using its compression ratio to replace the spring, the inverted fork shock absorber front fork has the effect of shock absorption and damping.

Description

Full-pneumatic inverted fork shock-absorbing front fork

The present invention relates to the technical field of a front suspension fork for vehicle suspension, especially the technical category of a full-pneumatic inverted fork suspension front fork.

The existing inverted-fork front fork is provided with a hollow front fork tube on the opposite sides of the front wheel that can be longitudinally retracted and provided at opposite ends of the front wheel axis, and a connection is provided at the top of the front fork tube. Waiting for the top of the front fork tube to make the front fork tubes form a parallel limit shoulder cover, the shoulder cover is connected to a riser which can be linked by a control handle and can be passed through the main frame around its own axis.

The front fork tubes are hollow and can be used to install shock absorber springs, hydraulic dampers and other devices in the internal space, and the inner tube and the outer tube that can slide linearly in the longitudinal direction can be used to buffer the bumpy road The purpose of vibration is to increase the riding comfort. However, the structure of this kind of inverted fork is more complicated, and it has many components, which need to be improved. For example: National New Patent No. M280340 Seismic structure improvement."

In view of the above-mentioned problems of the conventional fork suspension front fork, the new type of person has worked hard to develop a new type of full-pressure inverted fork suspension front fork, so the main purpose of this new type is to provide a simplified structure A full-pressure inverted fork shock-absorbing front fork; the secondary purpose of the present invention is to provide a full-pressure inverted fork shock-absorbing front fork with good air tightness and durability.

In order to achieve the above purpose, the new model uses the following technical means:

With regard to the novel full-pneumatic inverted fork shock-absorbing front fork, it includes: a shoulder cover, which is provided with a connection hole on both sides of a body; and an outer tube, which is respectively connected to the connection of the shoulder cover body Hole, and the top of the two outer tubes are each provided with a plug device, and the plug device is provided with a filling port, and a receiving seat is connected to each of the bottom ends of the two outer tubes; a pair of inner tubes are respectively sleeved It is connected to the bearing seat of the two outer tubes, and a bottom plug is provided at the bottom end of the two inner tubes, and a piston with a through hole is provided between each inner tube and the inner of the outer tube. At least one leak-proof oil seal is provided, and the leak-proof oil seal is provided below the receiving seat, to provide that the inner tube and the outer tube can be relatively moved to form a pair of variable compression gas chambers, and the The variable compression gas chamber is filled with high-pressure gas; and a pair of claw seats are respectively sleeved on the bottom ends of the two inner tubes; the variable compression gas chamber is filled with high-pressure gas and has a special compression rate To replace the traditional spring, the inverted fork shock absorber front fork has shock absorber damping effect.

In the full-pneumatic inverted fork suspension front fork, the pressure of the high-pressure gas is between 20 PSI and 70 PSI, and the compression stroke of the inner tube and the outer tube is between 50 mm and 100 mm.

The full-pneumatic inverted fork shock-absorbing front fork, wherein the receiving seat is provided with an upper hole slot and a lower hole slot, wherein the upper hole slot provides fixing of the outer pipe connection and the lower hole slot provides the stop Leak seal.

In the full-pneumatic inverted fork shock-absorbing front fork, an inner metal ring is provided inside the leak-proof oil seal, and a plurality of outer metal rings are provided outside the leak-proof oil seal.

The full-pneumatic inverted fork shock-absorbing front fork, wherein the piston is provided with several oil seals.

The full-pneumatic inverted fork shock-absorbing front fork, wherein a positioning space is formed in the outer tube, the inner tube piston, and the receiving seat, and the positioning space provides a buffer spring installation, and the buffer spring is set between 0.5kgf/ mm～1kgf/mm.

In the full-pneumatic inverted fork suspension front fork, the inner diameter ratio of the inner tube and the outer tube is set to 0.74:1.

The new technology can achieve the following effects through the above technical means: 1. This new type uses the compression rate of high-pressure gas to replace the traditional spring and oil pressure to achieve the effect of shock absorption and damping. Only the shoulder cover, outer tube, inner tube, bearing seat, leak-proof oil seal, and plug device are used. , Bottom plug, foot seat and other components, the components are relatively simple, easy to be assembled and manufactured, and the manufacturing cost can be greatly reduced. 2. The new type is provided with the leakage oil seal below the receiving seat, and the inner metal ring is provided inside the leakage oil seal and several outer metal rings are provided outside, which can improve the airtightness of the new type Effect; In addition, the piston of the inner tube is provided with several oil seals, according to which the structural strength of the new type is strengthened.

First of all, please refer to FIG. 1 to FIG. 3, the new model is a full-pneumatic inverted fork suspension front fork A, which mainly provides a steering mechanism device as a front fork of the front wheel of a motorcycle, which includes: a shoulder Cover 1, one outer tube 2, one receiving seat 3, a pair of inner tubes 4, two leakage oil seals 5, two variable compressed air chambers 6, and a pair of claw seats 7.

As shown in FIG. 1, the shoulder cover 1 is provided with a connecting hole 111 on both sides of a vertical tube 12 provided on a body 11.

As shown in FIG. 1, the two outer tubes 2 are respectively connected to the connecting holes 111 of the body of the shoulder cover 1, and the top ends of the two outer tubes 2 are each provided with a plug device 21, and the plug device 21 is provided with a filling port 211, and a receiving seat 3 is connected to the bottom ends of the two outer tubes 2 respectively.

As shown in FIG. 2, the receiving seat 3 is provided with an upper hole slot 31 and a lower hole slot 32 in the receiving seat 3, wherein the upper hole slot 31 provides the outer tube 2 to be fixedly connected, and the lower hole The groove 32 is provided with the leakage oil seal 5.

As shown in FIGS. 1 and 2, the two inner tubes 4 are respectively sleeved on the receiving seats 3 of the two outer tubes 2, and the bottom ends of the two inner tubes 4 are each provided with a bottom plug 41, and the The inner diameter ratio of the inner tube 4 and the outer tube 2 is set to 0.74:1; another piston 42 with a through hole 421 and several oil seals 422 is provided between each inner tube 4 and the inner of the outer tube 2 There is at least one leak-proof oil seal 5 in between, and the leak-proof oil seal 5 is installed below the receiving seat 3 to provide that the inner tube 4 and the outer tube 2 can be relatively moved to form the pair Variable compressed gas chamber 6, and the variable compressed gas chamber is filled with high-pressure gas; in particular, another positioning space 423 is formed in the outer tube 2, the inner tube 4 piston 41, the receiving seat 3, and the positioning space 423 is provided with a buffer spring 424, and the buffer spring 424 is set between 0.5kgf/mm ~ 1kgf/mm.

As shown in FIGS. 2 and 3, the two oil leakage seals 5 are respectively provided with an inner metal ring 51 inside, and a plurality of outer metal rings 52 on the outside, and the two oil leakage seals The oil seals 5 are respectively installed and fixed in the lower hole grooves 32 of the receiving seat 3, which is favorable for the inner tube 4 to be inserted into the shuttle.

As shown in FIG. 1, the two variable compression gas chambers 6 are composed of the two outer tubes 2, the two top plug devices 21, the two inner tubes 4, the two bottom plugs 41, and the two oil stop seals 5. The sealed chamber can be filled with high-pressure gas inside the two variable compressed gas chambers 6 through the filling port 211 of the plug device 21, wherein the pressure of the high-pressure gas is between 20 PSI and 70 PSI, and provides the The compression stroke of the inner and outer tubes is between 50mm and 100mm.

As shown in FIG. 1, the two claw seats 7 are respectively sleeved on the bottom ends of the two inner tubes 4 and cover the lower part of the inner tube 4 and the two bottom plugs 41 thereof.

The above-mentioned full-pressure inverted fork suspension front fork A is constituted by the above components, as shown in FIG. 4, and the variable compression gas chamber 6 is filled with high-pressure gas, such as nitrogen, and the high-pressure gas The tube 2 and the inner tube 4 are opened, so that the piston 42 of the inner tube 4 presses and compresses against the buffer spring 423 located in the positioning space 423, and uses the high-pressure gas with a special compression rate to replace the traditional spring, so that the inverted Fork suspension front fork A has the effect of suspension damping.

In other words, when the new type of fork suspension front fork A is installed on the front fork of the motorcycle's front wheel, when the motorcycle travels on an uphill section, the instantaneous reaction force on the road surface will be applied to the front wheel of the motorcycle. When the front wheel exerts a force on the inner tube 4 of the present invention, the inner tube 4 and its piston 42 will contract toward the outer tube 4 to compress the high-pressure gas in the variable compression gas chamber 6 together. The air is far away from the buffer spring 424 located in the positioning space 423, and the high-pressure gas accumulates a recovery elastic force at the same time. When the instantaneous reaction force disappears, the recovery elastic force of the high-pressure air is applied to the inner tube 4, allowing the inner The tube 4 stretches and the piston 42 presses against the buffer spring 424 to return the front wheel of the motorcycle to the initial position, and so on, so as to provide a comfortable ride on the motorcycle.

In addition, from the full-pressure inverted fork suspension front fork A, the suspension method of the new full-pressure inverted fork suspension front fork can be summarized. As shown in FIG. 5, it includes: In the step a of fork construction, a shoulder cover 1, an outer tube 2, a pair of receiving seats 3, a pair of inner tubes 4 with pistons 42 and a pair of claw seats 7 are assembled into an inverted fork shock-absorbing front fork, and A positioning space 423 is formed in the outer tube 2, the piston 41 of the inner tube 4 and the receiving seat 3, and the positioning space 423 is provided with a buffer spring 424; a variable compression gas chamber building step b, which is a pair of The top plug device 21 of the filling port 211 is installed at the top end of the two outer tubes 2, a pair of bottom plugs 41 are installed at the bottom ends of the two inner tubes 4, and there are two leakage oil seals 5 under the two receiving seats 3 Between the two inner tubes and the outer part 2 of the inner tube, a variable compressed gas chamber 6 is formed; and a step c of filling with high-pressure gas is filled with high-pressure gas from the filling port 211 of the plug device 21.

Through the above steps, the new full-pressure inverted fork suspension front fork A is manufactured, and the variable compression gas chamber 6 is filled with high-pressure gas, and the high-pressure gas has a specific compression ratio to replace the traditional spring, Let the inverted fork suspension front fork A have the effect of suspension damping.

To sum up, this new model is about a "full-pneumatic inverted fork shock-absorbing front fork", and the structure of each of its embodiments has not been seen in various books or public use, since it complies with the patent application requirements, and I urge the Jun Bureau to learn from it, Grant the patent as soon as possible, to pray for it;

To be clear, the above are the specific embodiments of the case and the technical principles used. If the changes made according to the concept of the case, the resulting functional effects have not exceeded the spirit covered by the description and drawings, All should be within the scope of this case, and Chen Ming.

A‧‧‧Fork suspension fork 1‧‧‧Shoulder cover 11‧‧‧Body 111‧‧‧Connecting hole 12‧‧‧ riser 2‧‧‧Outer tube 21‧‧‧Plug device 211‧‧‧fill hole 3‧‧‧ undertake seat 31‧‧‧Upper slot 32‧‧‧Lower slot 4‧‧‧Inner tube 41‧‧‧ 42‧‧‧ Piston 421‧‧‧Through hole 422‧‧‧oil seal 423‧‧‧ Positioning space 424‧‧‧Buffer spring 5‧‧‧Seal oil seal 6‧‧‧Variable compressed air chamber 7‧‧‧Claw seat B‧‧‧Inverted shock absorber front shock absorber method a‧‧‧Step b‧‧‧Step c‧‧‧Step

Figure 1: This is a sectional view of the new full-pneumatic inverted fork suspension front fork. Figure 2: This is a partial cross-sectional view of the new outer tube, inner tube, bearing seat and leakage seal. Figure 3: This is an enlarged schematic diagram of this new type of oil seal. Figure 4: This is a schematic diagram of the operation of the new full-pneumatic inverted fork suspension front fork. Figure 5: It is a flow chart of the new full-pneumatic inverted fork suspension front suspension method.

A‧‧‧Fork suspension fork

1‧‧‧Shoulder cover

11‧‧‧Body

111‧‧‧Connecting hole

12‧‧‧ riser

2‧‧‧Outer tube

21‧‧‧Plug device

211‧‧‧fill hole

3‧‧‧ undertake seat

4‧‧‧Inner tube

41‧‧‧

42‧‧‧ Piston

421‧‧‧Through hole

422‧‧‧oil seal

423‧‧‧ Positioning space

424‧‧‧Buffer spring

5‧‧‧Seal oil seal

51‧‧‧Inner metal ring

52‧‧‧Outer metal ring

6‧‧‧Variable compressed air chamber

7‧‧‧Claw seat

Claims (7)

A full-pneumatic inverted fork shock-absorbing front fork includes: a shoulder cover, which is provided with a connection hole on both sides of a body; an outer tube, which is respectively connected to the connection hole of the shoulder cover body, and The top ends of the two outer tubes are each provided with a plug device, and the plug devices are provided with a filling port, and a receiving seat is connected to the bottom ends of the two outer tubes; a pair of inner tubes are respectively sleeved on the The receiving seat of the two outer tubes, and the bottom ends of the two inner tubes are each provided with a bottom plug, and a piston with a through hole is provided between each inner tube and the inner of the outer tube, and at least A leak-proof oil seal, and the leak-proof oil seal is provided at the lower part of the receiving seat to provide relative movement of the inner tube and the outer tube to form a pair of variable compressed gas chambers, and the variable compressed gas The chamber is filled with high-pressure gas; and a pair of claw seats are respectively sleeved on the bottom ends of the two inner tubes; the variable compression gas chamber is filled with high-pressure gas, and its special compression ratio is used to replace the traditional The springs provide the front fork with shock absorbing damping effect. The full-pneumatic inverted fork suspension front fork according to claim 1, wherein the pressure of the high-pressure gas is between 20 PSI and 70 PSI, and the compression stroke of the inner and outer tubes is between 50 mm and 100 mm. The full-pneumatic inverted fork shock-absorbing front fork according to claim 1, wherein the receiving seat is provided with an upper hole slot and a lower hole slot, wherein the upper hole slot provides fixing of the outer pipe connection device, and the lower hole slot provides Install the leak-proof oil seal. The full-pneumatic inverted fork shock-absorbing front fork according to claim 1, wherein an inner metal ring is provided inside the leak-proof oil seal, and a plurality of outer metal rings are provided outside the leak-proof oil seal. The full-pneumatic inverted fork suspension front fork according to claim 1 or 4, wherein the piston is provided with several oil seals. The full-pneumatic inverted fork shock-absorbing front fork according to claim 5, wherein a positioning space is formed in the outer tube, the inner tube piston, and the receiving seat, and the positioning space provides a buffer spring installation, and the buffer spring is interposed Within 0.5kgf/mm～1kgf/mm. The full-pneumatic inverted fork suspension front fork according to claim 1 or 4, wherein the inner diameter ratio of the inner tube and the outer tube is set to 0.74:1.

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