KR100591523B1 - Bicycle folding air injector - Google Patents

Abstract

Bicycle folding air injector of the present invention is to install a double subframe in the transverse direction on the upper side of the rear frame to form an opening on the outer periphery of the end of the subframe and to protrude the clamping piece formed through holes on both sides thereof A clamping lever is installed in the through hole formed in the clamping piece and the clamping lever is operated to tighten or release the clamping piece by the rotation of the lever by the cam method. And a support means fixed to protrude at a position corresponding to the clip, and through the upper portion of the cylinder housing having a cylinder chamber formed therein perpendicularly downward to the inner circumference of the support means clip integrally with the front frame by a tightening lever. To control the rotation of the fixed cylinder housing and to protrude vertically downwards at the bottom of the cylinder housing The screw shaft through the coupling hole of the fixing plate, and fasten the nut to the screw shaft to rotatably couple the cylinder housing, which is integrally joined with the double front frame installed on the rear frame, and install the piston of the cylinder housing to be slidable up and down. Air pumped at the top of the piston rod fixed to the top of the piston by the pump handle to discharge the air discharged to the outlet formed in communication with the cylinder housing cylinder chamber and the outside, and a closed cap formed with a fastening hole in the open upper end of the cylinder housing Air injection device bonded together.

Description

Bicycle double up combination air pouring system {Bicycle double up combination air pouring system}

1 is a perspective view showing a bicycle equipped with a folding air injector of the present invention.

Figure 2 is a sectional view of the main portion showing a foldable combined air injection device of the present invention.

Figure 3 is a planar operation state view showing the folding device of the present invention in a plan sectional view seen from the line A-A of FIG.

Figure 4 is a plan view showing a tightening lever of the gripping device of the present invention.

5 is a perspective view showing a state of folding the bicycle of the present invention.

Explanation of symbols on the main parts of the drawings

1: bicycle 10: front frame

11: front wheel 12: steering wheel

13: fork 20: rear frame

21: rear wheel 22: power transmission means

22a: Pedal 22b: Crankshaft

23: saddle 100: support means

110: subframe 120: clip

121: sandwich part 121a: through hole

122: opening 130: tightening lever

131: lever 132: pressure piece

140: fixing plate 141: coupling hole

200: air injection device 210: cylinder housing

211: cylinder chamber 212: discharge port

213: Sealing cap 213a: Fastening hole

214: screw shaft 215: nut

220: piston 221: piston rod

221a: male thread 222: pump handle

The present invention relates to a bicycle folding air injecting device, and more particularly, to install the air injecting device inside the bicycle frame and at the same time to use the folding device to increase the folding strength of the bicycle to ensure safety and maintain the bicycle It relates to a bicycle folding air infusion device for easy management.

In general, a bicycle is a two-wheeled vehicle that rotates its wheels by human force.

In this way, the foot step is transmitted to the rear wheel via the pedal crank mechanism and the chain.

In the development of such a bicycle, a folding bicycle which improves the storage and portability of the bicycle has been recently developed. As a conventional technology related to the folding bicycle, the folding bicycle and the public announcement of Korean Utility Model Publication No. 89-2014 Folding apparatus of bicycles of heading 89-4669, body fastening devices of prefabricated bicycles of No. 93-8316, folding bicycles of No. 93-8317, folding bicycles of No. 93-8317, folding bicycles of No. 90-8145 and No. 90-10276 Folding device of a bicycle frame, etc. are mentioned.

In the above-mentioned conventional folding bicycles, most of them have a disadvantage that the structure is coarse and complicated, as well as a factor that increases the weight of the vehicle body.

In addition, the operation of folding the bicycle is not simple and hassle-free.

There is a problem, which has not been widespread because of this.

In addition, the hinge-folded bicycle is hinged by connecting the front frame supporting the steering wheel and the front wheel and the rear frame supporting the transmission means and the saddle through the hinge, the folding strength, durability, weight, etc. Overall, there was a problem of degrading the function of the bicycle.

 In addition, the conventional method of injecting the bicycle wheel into the air was purchased separately from a bicycle repair shop or a dedicated bicycle air injector, but this was a cumbersome problem of having to go directly to the bicycle repair shop every time air injection was needed, Since it must be purchased separately and attached to the bicycle, there are problems such as maintenance cost of the bicycle and loss of the air injector.

Therefore, the main object of the present invention is to hinge the front frame supporting the front wheel and the rear frame supporting the rear wheel on the basis of the cylinder housing to control the mutually folded operation through the tightening lever to the front frame and the rear frame It is to provide a folding bicycle with excellent stability by increasing the folding strength and the maintenance strength when the folding is released.

In addition, another object of the present invention is to install an injection device capable of pumping a separate air to inject air into the wheel of the bicycle integrally installed inside the bicycle frame can easily inject air to the bicycle wheel through the injection hose The present invention provides a bicycle air injector that is easy to maintain and maintain a bicycle.

In addition, the last object of the present invention is to provide a folding bike that maximizes the safety by strengthening the strength to the bicycle frame by installing the sub-frame of the front frame and the rear frame in double.

In order to achieve the above object, the folding bicycle combined air injection device of the present invention is a front frame that is installed to rotate the front wheel and supports the handle to control the direction of the front wheel, hinged rotatably rotatably connected to the front frame In the bicycle consisting of a rear frame is provided with a transmission means for transmitting the stepping force to the pedal and the crankshaft and chain side to provide electric power to the rear wheels, which are installed and rotated,

To install the sub-frame in double in the transverse direction on the upper side of the rear frame to form an opening in the outer periphery of the end of the sub-frame and to protrude the pincer pieces formed through holes on both sides thereof to elastically retract or open And a tightening lever which is operated to tighten or release the clamping piece by the rotation of the lever in the through-hole formed in the clamping piece, and on the crank shaft of the pedal installed at the lower end of the subframe. Tightening lever through the support means for fixing the fixing plate formed to form a coupling hole so as to protrude in a position corresponding to the clip, and through the upper portion of the cylinder housing in which the cylinder chamber is formed in the vertical direction perpendicular to the inner circumference of the clip of the support means To control the rotation of the cylinder housing integrally fixed to the front frame. The screw shaft formed to protrude vertically downward at the bottom of the gong penetrates through the coupling hole of the fixing plate to fasten the nut to the screw shaft exposed to the outside. Then, the inner periphery of the cylinder housing is installed so that the piston can slide up and down, but the piston pumps the air through the pump handle that is integrally coupled to the upper end of the piston rod fixed to the upper end of the piston so that the pressurized air is lowered to the cylinder housing. To be discharged through the discharge port formed in communication with the cylinder chamber and the outside of the air pump, and through the male screw of the outer circumference of the piston rod penetrated through the fastening hole, Air column selectively interlocked depending on use Characterized in that configured as a mouth device.

Referring to the accompanying drawings folding bicycle air injector of the present invention will be described in detail the configuration and operation as follows.

1 is a perspective view showing a bicycle equipped with a combined folding air injector of the present invention, Figure 2 is a cross-sectional view of the main portion showing a folding air injecting device of the present invention, Figure 3 is a plan view showing a folding device of the present invention. 4 is a plan view showing a tightening lever of the bidding device of the present invention, Figure 5 is a perspective view showing a state of folding the bicycle of the present invention.

As shown in Figures 1 to 5, the bicycle folding air injecting device of the present invention is the front frame 10 is installed so that the front wheel 11 is rotatable and supports the front frame (10) for supporting the handle 12 for controlling the direction of the front wheel (11) ) And a stepped foot to provide electric power to the rear wheel 21 which is rotatably hinged to the front frame 10 and is installed to be rotatable to the pedal 22a and the crankshaft 22b and the chain side. In the bicycle consisting of the rear frame 20 is installed, the transmission means 22,

The subframe 110 is installed in the transverse direction in the upper part of the rear frame 20, but the opening 122 is formed on the outer periphery of the end of the subframe 110, and the through holes 121a are formed on both sides thereof. The rotation of the lever 131 in the cam hole in the through hole 121a formed in the clamping piece 121 by installing the clip 120 to protrude or sandwich the elastic clamping piece 121 to be elastically opened or unrolled. A coupling hole 141 is installed on the crank shaft 22b of the pedal 22a installed at the lower end of the subframe 110 by installing a tightening lever 130 that is operated to tighten or release the clamping piece 121. The support means 100 is fixed to protrude in a position corresponding to the clip 120 and the fixing plate 140 is formed, and the cylinder chamber therein in a vertical downward direction to the inner circumference of the clip 120 of the support means (100) 211 is coupled to the upper portion of the cylinder housing 210 formed to penetrate the lever 130 The screw shaft 214 is formed so as to control the rotation of the cylinder housing 210 fixedly integrated with the front frame 10 and to protrude in a vertical downward direction at the lower end of the cylinder housing 210. The cylinder housing 210 which is integrally joined with the front frame 10 installed in the rear frame 20 by fastening the nut 215 to the screw shaft 214 exposed through the coupling hole 141 to the outside. After rotatably coupled, the pump handle 222 which is integrally coupled to the upper end of the piston rod 221 fixed to the upper end of the piston 220 is installed on the inner circumference of the cylinder housing 210 so as to slide up and down. Piston 220 to pump the air through the () through the discharge port 212 is formed to communicate with the outside and the cylinder chamber 211 and the outside under the cylinder housing 210 and the cylinder housing 210 At the top of the opening Selectively interlocking with the sealing stopper 213 formed with the hole 213a through the male screw 221a of the outer circumference of the piston rod 221 penetrated through the fastening hole 213a according to the use of air pumping. It consists of an air injection device 200.

One side of the front frame 10 is double bonded to the handle 12 and the fork 13 supporting the front wheel 11 of the bicycle 1 and the other side is integrally bonded to the outer periphery of the cylinder housing 210 Let's do it.

In addition, the rear frame 20 supports the rear wheel 21 and the saddle 23, and the sub-frame 110 is double bonded to the upper portion of the rear frame 20, but the clip (installed at the end of the sub-frame 110 ( 120 is hinged to the cylinder housing 210 and the fixing plate 140 is integrally bonded to the front of the crank shaft 22b supporting the pedal 22a at the lower portion of the rear frame to seat the lower end of the cylinder housing 210. At the same time, the nut 215 is fastened through the screw shaft 214 of the cylinder housing 210 penetrated through the coupling hole 141 of the fixing plate 140.

In addition, the tightening lever 130 penetrates through the clamping piece 121 formed as a pair in the clip 120, but the pressing piece 132 of the tightening lever 130 closely contacts the clamping piece 121. And a pair of pressing pieces 132 selectively pinch or release the pinching pieces 121 by rotation of the lever 131 coupled to the pressing piece 132 on one side by a cam method.

Furthermore, the compressed air discharged through the air injecting device of the bicycle 1 is connected to the discharge port 212 and a known air injection hose (not shown) with the wheel of the bicycle 1 to pump the piston 220 by pumping the bicycle. Air can be injected into the tube (not shown) inside the wheel of (1).

Looking at the operation of the present invention as follows.

First, when folding the bicycle 1, the lever 131 of the tightening lever 130 is rotated so that the pressing piece 132 releases the pressing force of the clamping piece 121 of the clip 120 by the cam method. Allow the cylinder housing 210 to rotate freely at the inner circumference of 120 and then fold the front frame 10 to the rear frame 20 to fold so that the front frame 10 and the rear frame 20 overlap. The lever 131 of the tightening lever 130 is rotated in reverse to maintain the folding state so that the bicycle is folded so that the bicycle 1 can be easily stored and carried.

Subsequently, when returning the folded bicycle 1 to its original state, the lever 131 of the tightening lever 130 is reversed again, and the pressing piece 132 of the tightening lever 130 is held by the clamping piece of the clip 120 ( After releasing the compressive force applied to 121, the front frame 10, which is folded to the rear frame 20, is rotated so that the bicycle 1 can be converted to a driving state, and then the clamping piece 130 By pressing 121 to fix the inner circumference of the clip 120 to pressurize the outer circumference of the cylinder housing 210, the bicycle 1 can be shifted to a state in which the bicycle 1 can be driven and can easily maintain the converted state. .

In addition, when injecting air to the wheel during the operation of the bicycle (1) is fastened with the male screw (221a) of the piston rod 221 fastened to the fastening hole (213a) of the closure cap 213 installed on the upper end of the cylinder housing 210. When the piston plug 213 is rotated to release the piston 220 so that it can be transported up and down so as to release the pump, the pump 220 repeatedly pumps the piston 220 up and down through the cylinder housing ( The air filled in the cylinder chamber 211 inside 210 is discharged through the outlet 212 at a predetermined pressure or more.

At this time, the outlet 212 is connected to the inlet (not shown) of the air injection hose (not shown), which is a known technique, the compressed air generated in the air injection device 200 by interconnecting the inlet (not shown) of the wheel to the inside of the wheel Make sure that it is fed to the tube side.

When the air injection is complete, remove the air injection hose and then rotate the pump handle 222 to reverse the male screw (221a) of the piston rod 221 is fastened to the fastening hole (213a) of the sealing plug 213 air injection device ( Complete the air injection operation to the bicycle (1) wheels through 200).

As such, the air injector 200 is separately installed in the frame of the bicycle 1, and the air injector 200 serves as a hinge to fold the bicycle, thereby easily folding the bicycle wheel together with the folding strength of the bicycle 1. It is effective to inject air into the air.

As described above, the folding folding air injector of the present invention is connected to the front frame supporting the front wheel and the rear frame supporting the rear wheel hinged on the basis of the cylinder housing can control the mutual folding through the tightening lever It is effective in improving the reliability of the product by providing excellent stability by increasing the folding strength between the front frame and the rear frame and the retention strength when the folding is released.

In addition, by integrating an injector that can separate air pumping to inject air to the wheels of the bicycle integrally installed inside the bicycle frame, it is easy to inject air into the bicycle wheel through the injection hose to maintain the bicycle There is an easy effect.

In addition, by installing the sub-frame of the front frame and the rear frame in double, there is an effect that can maximize the safety by strengthening the strength of the bicycle frame.

Claims (1)

The front wheel 11 is rotatably installed and connected to the front frame 10 for supporting the handle 12 for controlling the directionality of the front wheel 11, and rotatably hinged to the front frame 10 in a foldable manner. In the bicycle consisting of a rear frame (20) provided with a pedal (22a), a crankshaft (22b), and a transmission means (22) for transmitting the power to the rear wheel (21) provided to the power possible to the pedal (22a) and the chain side, The subframe 110 is installed in the transverse direction in the upper part of the rear frame 20, but the opening 122 is formed on the outer periphery of the end of the subframe 110, and the through holes 121a are formed on both sides thereof. The rotation of the lever 131 in the cam hole is provided in the through hole 121a formed in the clamping piece 121 by installing a clip 120 to protrude the clamping piece 121 so as to be retracted or flared elastically. A coupling hole 141 is installed on the crank shaft 22b of the pedal 22a installed at the lower end of the subframe 110 by installing a tightening lever 130 that is operated to tighten or release the clamping piece 121. Support means 100 for fixing the fixing plate 140 is formed to protrude in a position corresponding to the clip 120, The front frame 10 is fastened by the fastening lever 130 by coupling the upper portion of the cylinder housing 210 having the cylinder chamber 211 formed therein in a vertical downward direction to the inner circumference of the clip 120 of the support means 100. ) And the coupling hole 141 of the fixing plate 140 has a screw shaft 214 formed so as to control the rotation of the cylinder housing 210 fixed integrally and protrude vertically downward on the lower end of the cylinder housing 210. After fastening the nut 215 to the screw shaft 214 exposed to the outside through the through and to rotatably couple the cylinder housing 210 which is integrally bonded with the front frame 10 installed on the rear frame 20 On the inner circumference of the cylinder housing 210, the piston 220 is installed to be slidable up and down, but the piston (through the pump handle 222 integrally coupled to the upper end of the piston rod 221 fixed to the upper end of the piston 220 ( Pressurized air to allow 220 to pump air In the lower part of the cylinder housing 210 to be discharged through the discharge port 212 formed in communication with the cylinder chamber 211 and the outside, and a closed cap formed with a fastening hole (213a) in the open upper end of the cylinder housing 210 ( 213 is joined to the through-hole male screw (221a) of the outer periphery of the piston rod 221 penetrated through the fastening hole (213a) characterized in that it consists of an air injection device 200 for selectively interlocking with each other depending on the use of air pumping Bicycle folding air pump.

Images