KR20080000002A - Recumbent bike - Google Patents

Abstract

The present invention relates to a recumbent bicycle, and a three-wheel or four-wheel recumbent bicycle having two front wheels is a folding bicycle which steers forward by steering the front wheel by moving the left and right centers of the body and describes a method applied to a three-wheeled bicycle.

Dropout is installed at the rear lower part of the rear frame to rotatably fasten the rear wheel with the known free gear, and the wedge ball is installed at the lower front part to be combined with the white paper ball installed at the rear lower part of the center frame. It can be folded and unfolded by a holder, and a steering rod is installed at the front lower end of the center frame to be rotatably fastened to the steering rod bracket of the front wheel axle, and the front frame insert is installed at the front upper part to fix and insert the front frame. The steering bracket is configured to fasten the steering rod at the lower side and the equilibrium holding device at the center, and the pedal crank bracket is configured at the front of the front frame so that the known pedal crank can be rotated rotatably and the handle bracket is installed at the upper center. King pin brackets are formed on the left and right sides of the front wheel axle, respectively, Insert and fasten the attached kingpin rotatably and connect the steering bracket of the front frame and the pair of knuckle arms fastened to the left and right respectively with a pair of steering rods, and the user sitting on the saddle fixed to the rear frame and the center frame is the center of the body. To the left and right, the steering rods on both sides move the pair of knuckle arms that are rotatably fastened to the left and right by a kingpin to steer. A pair of balancing devices fastened to the steering bracket help to maintain the center of the user's body. The recumbent bicycle moves forward by rotating the rear wheels connected by chains by turning the pedal crank as a normal bicycle.

Description

Recumbent bicycle {RECUMBENT BIKE}

1 is a side view of a recumbent bicycle according to a first embodiment of the present invention,

2 is a front view of the recumbent bicycle according to the first embodiment of the present invention,

3 is a perspective view of a rear frame of the recumbent bicycle according to the first embodiment of the present invention,

4 is a perspective view of a center frame of the recumbent bicycle according to the first embodiment of the present invention;

5 is a perspective view of a front frame of the recumbent bicycle according to the first embodiment of the present invention;

6 is a perspective view of the front wheel axle of the recumbent bicycle according to the first embodiment of the present invention,

7 is a perspective view of a knuckle arm of a recumbent bicycle according to the first embodiment of the present invention,

8 is a perspective view of a steering rod of the recumbent bicycle according to the first embodiment of the present invention;

9 is an operation of the folding method of the recumbent bicycle according to the first embodiment of the present invention,

10 is a side view of the lever system of the recumbent bicycle according to the second embodiment of the present invention,

11 is a side view of a handle crank method of a recumbent bicycle according to a third exemplary embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

110; Rear frame 111; Saddle Bracket

112; Dropout 113; Chainstay

114,123; White paper ball 120; Center frame

121; Folding holder 122; Folding holder spring

124; Tension gear shaft; 125; Front frame insertion hole

126; Front frame fixing bracket 127; Steering rod

128; Steering bracket 129; Equalizer Holder Fasteners

130,230,330; Front frame 131; Handle Bracket

132; Handle 133; Pedal Crank Bracket

140; Front wheel axle 141; King Pin Bracket

142; Balance holder bracket 143; Balancer

144; Balance holder 145; Steering Rod Bracket

150; Steering rod 151; Ball joint

160; Knuckle arm 161; Ball joint fastener

162; Kingpin 163; Axle shaft fastener

164; Axle shaft fixing bolt ball 170; pedal

171; Crank gear 172; chain

173; Tension gear®; Crankshaft

175; Children gear 176; Free Gear

180; Front wheels 181,281,381; Rear wheel

182; Wheel shaft 190; saddle

210; Handle 211; Handle Support Bar

212; Handle support bar fastener 213; Handle Support Bracket

220; Drive rod 221; Ball joint

310; Handle 311; Handle Crank Gears

312; Chain 313; Handle Crank Bracket

The present invention relates to a recumbent bicycle, and more particularly, the user moves the center of the body to the left and right to make a pair of front wheels to change the direction of the front, turn the rear wheels to move forward, simply folded, both hands and feet It is easy to convert to a three-wheeled bicycle used, and the conventional three-wheeled bicycle has a disadvantage in that the folding method is complicated and the front wheel is idling when climbing the hill because of the front-wheel drive method.

The present invention is to solve the above-mentioned problems, the object of the present invention is to provide a recumbent bicycle that can be easily folded and unfolded, a pair of front wheels to change the direction by moving the center of the body, driving the rear wheels to move forward .

The present invention for realizing such an object, by installing a dropout in the rear lower end of the rear frame to rotatably fasten the rear wheel with a known pre-gear and to install a wedge hole in the lower front to the rear lower portion of the center frame It can be folded and unfolded by the folding holder on the upper side by combining with the installed white paper ball.The steering rod is installed at the front lower part of the center frame to be rotatably fastened to the steering rod bracket of the front wheel axle and the front frame insertion hole is installed at the front upper part. Insert and fix the front frame, configure the steering bracket on the front lower side, fasten the steering rod at the bottom and the equilibrium holding device at the center, and configure the pedal crank bracket at the front of the front frame to fasten the known pedal crank to rotate. The handle bracket is installed at the top of the center and the handle is fastened to the left and right sides of the front axle. King pin brackets are formed by rotatably inserting the king pins with knuckle arms attached to each other.The steering brackets of the front frame and the pair of knuckle arms fastened to the left and right are connected to the rear frame and the center frame, respectively. When the user sitting on the fixed saddle moves the center of the body from side to side, the steering rods on both sides move a pair of knuckle arms that are rotatably fastened from side to side by a kingpin to steer, and a pair of equilibrium formed on the left and right sides of the front axle A pair of balancing devices, which are fastened to the retaining bracket and the steering frame of the front frame of the front frame, help to maintain the center of the user's body and rotate the chained rear wheels by turning the pedal crank like a normal bicycle. It is characterized by doing.

   The pedal and the handle is connected to the rod, characterized in that it further comprises a handle portion that can be converted into a lever-type recumbent bike of the lever type.

It is characterized in that it further comprises a handle crank portion that can be converted into a handle crank-type limb recumbent bicycle by connecting the pedal crank and the handle crank with a chain.

Hereinafter, with reference to the accompanying drawings, the most preferred embodiment of the present invention will be described in more detail to be easily carried out by those skilled in the art.

1 is a side view of a recumbent bicycle according to a first embodiment of the present invention, FIG. 2 is a front view of a recumbent bicycle according to a first embodiment of the present invention, and FIG. 3 is a recumbent according to a first embodiment of the present invention. 4 is a perspective view of a rear frame of the bicycle, FIG. 4 is a perspective view of a center frame of the recumbent bicycle according to the first embodiment of the present invention, and FIG. 5 is a perspective view of a front frame of the recumbent bicycle according to the first embodiment of the present invention. 6 is a perspective view of the front wheel axle of the recumbent bicycle according to the first embodiment of the present invention, Figure 7 is a perspective view of the knuckle arm of the recumbent bicycle according to the first embodiment of the present invention, Figure 8 is a first view of the present invention 9 is a perspective view of a steering rod of a recumbent bicycle according to an embodiment, and FIG. 9 is a view illustrating an operation of a folding method of a recumbent bicycle according to a first embodiment of the present invention, and FIG. 10 is a recombination method according to a second embodiment of the present invention. A side view of a lever system in the tree bicycle, Fig 11 is a side view of the handle of the crank system recumbent bicycle according to a third embodiment of the present invention.

In the first embodiment according to the present invention, as shown in Figs. 1 and 2, the rear frame 110, the central frame 120, the front frame 130, the front wheel axle 140, and the balance maintenance Device 143, steering rod 150, knuckle arm 160, pedal 170, wheels 180, 181, and saddle 190.

As shown in FIG. 3, the rear frame 110 is rotatably fastened to the rear wheel 181 provided with the known pregear 176 by installing the dropout 112 at the rear lower end, and the front of the chainstay 113. The white paper ball 114 is installed at the bottom to be combined with the white paper ball 123 installed at the rear lower end of the center frame 120 so that it can be folded and unfolded by the folding holder 121 of the central frame 120, The saddle brackets 111 are configured to secure the backrest portion of the saddle 190.

The center frame 120 is coupled to the white paper ball 123 installed at the rear lower end of the white paper ball 114 inside the white paper ball 114 of the rear frame 110 as shown in Figure 4 is supported by the upper folding holder spring 122 The folding holder 121 can be folded and unfolded, and a steering rod 126 is installed at the front lower end so as to be rotatably fastened to the steering rod bracket 145 of the front wheel axle 140 and the balance holder holder fastening portion 128 Insert the balance retainer holder 144 into the nut and fix it with a nut, etc., and install the front frame inserting hole 124 in the front upper part to insert the front frame 130 to have a known eccentric cam in the front frame fixing bracket 125. Fixed to a proper length with a quick release lever, and fixed to the steering bracket 128 having a plurality of ball joint fastening holes (161) in the front lower side downwards by welding or the like and a pair of ball joint fastening holes (161) on both sides Steering rods 150 on each side Each one of the paired ball joint 151 is fastened and shares the through hole of the balance holder holder 144 to fasten the pair of balance holders 143 together with bolts, respectively. The bracket 111 may be configured to fix the saddle 190.

As shown in FIG. 5, the front frame 130 constitutes a known pedal crank bracket 133 at the front end so that the known pedal crank is rotatably fastened, and a known handle bracket 131 is installed at the upper center of the handle ( 132) to an appropriate angle.

As shown in FIG. 6, the front wheel axle 140 vertically configures the king pin brackets 141 on the left and right sides and horizontally configures the steering rod brackets 145, respectively, and the balance retainer brackets 142 on both sides below. Each consists of welding, etc.

It is preferable that a pair of balance holding | maintenance apparatus 143 uses a well-known pressure bar.

A pair of steering rods 150 fasten a pair of ball joints 151 at both ends as shown in FIG. 8.

As shown in FIG. 7, the pair of knuckle arms 160 form a king pin 162 vertically on the front end side, and a plurality of ball joint fastening holes 161 are laid on the knuckle arm 160, and the left and right sides The axle shaft fastening hole 163 is laid in the direction and the axle shaft fixing bolt ball 164 is laid in the center.

The pair of known pedals 170 includes a crank gear 171 and is fastened to the pedal crank bracket 133 of the front frame 130 to be rotatable by the crankshaft 174, the known tension gear (173) Is connected to one of the pair of idle gears 175 via a chain 172 for adjusting tension, and another chain sharing the pre-gear 176 of the rear wheel 181 with another idle gear 175 ( 172) to drive the rear wheel.

The wheel consists of a rear wheel 181 and a pair of front wheels 180 including one or more known pregear 176 and is rotatably fastened to the wheel shaft 182.

Saddle 190 is divided into the backrest portion and is configured for folding, as shown in Figure 9 to unfold the folding holder 121, which is supported by the folding holder spring 122, fold the rear frame 110 back and fold the front frame fixing bracket ( 126) by releasing the quick release lever having a known eccentric cam fastened to the front frame 130 can be removed or inserted further into the rear to reduce the volume and in the same way the steering wheel 132 can be folded all-wheel steering, It features rear wheel drive.

As shown in FIG. 10, the second embodiment according to the present invention further includes a driving rod 220 in which a handle 210 and a pair of ball joints 221 are fastened at both ends thereof. By fastening the handle 210 to the handle support bar fastening hole 212 of the handle support bar 211 to the handle support bar bracket 213 and moving the handle 210 back and forth with both hands, the rear wheel 281 with both feet) It is characterized in that it is used as a three-wheeled bicycle to move forward, and the same as the method of driving the four-wheel drive automatic steering bicycle of the applicant (10-2005-0023426), the detailed structure and operation method will be omitted.

According to the third embodiment of the present invention, as shown in FIG. 11, the handle 310 and the handle crank gear 311 are rotatably coupled and further include a chain 312, and the handle crank of the front frame 330. The handle 310 is rotatably fastened to the bracket 313 so as to be connected to the handle crank gear 311 to rotate the handle 310 with both hands to rotate the rear wheel 381 together with both feet for use as a three-wheeled bicycle. It is characterized by the same as the driving method of the own application (10-2005-0084463) folding hand-driven bicycle, detailed structure and operation method will be omitted.

In the first, second, and third embodiments, the wheel part further includes a known brake and parking brake device for mounting the brakes and connecting the brakes by a cable. Shall be.

In the first, second, and third embodiments, the pedal crank gear and the wheel further include a known transmission device, and the structure, the attachment method, and the operation description thereof will be omitted.

As described above, the recumbent bicycle according to the present invention can be easily folded and unfolded, and is easily deformed by a limb bicycle, and the rear wheel driving method reduces idle idling of the wheel when climbing a hill.

What has been described above is merely an embodiment for carrying out the recumbent bicycle according to the present invention, and the present invention is not limited to the above-described embodiment, and without departing from the gist of the present invention as claimed in the following claims. Anyone with ordinary knowledge in the field of the present invention will have the technical spirit of the present invention to the extent that various modifications can be made.

Claims (6)

A rear frame fastening the rear wheel to the rear end and including a white paper ball at the front lower side; The rear frame is connected to the white paper and includes a folding holder on the upper side, and the front frame on the front side includes a steering rod at the front and bottom, and inserts the balancing device holder to the balance holder holder fastening part and fixes it with a nut and the like. A center frame having a front frame insert at the top to fix the front frame by inserting the front frame and fixing a steering bracket having a plurality of through holes at the front and the bottom thereof, and having a plurality of saddle brackets at the top; A front frame constituting a known pedal crank bracket at the front end so as to rotatably fasten the known pedal crank and installing a known handle bracket at the upper center thereof so that the handle can be fastened at an appropriate angle; A front wheel axle comprising a king pin bracket vertically on the left and right sides, a steering rod bracket horizontally on the center, and a balancing device bracket on both sides; A pair of balancing devices; A pair of steering rods each having a pair of ball joints coupled to both ends; A pair of knuckle arms with a king pin vertically formed on the front side, a number of ball joint fastening holes are laid on the knuckle arm, axle shaft fastening holes on the lower side, and axle shaft fixing bolt balls on the center. ; A pair of pedals for returning a rear wheel to which a known pregear is attached to another chain, including a pair of idle gears connected to a known crank gear and a chain; A rear wheel with a known pregear; A pair of front wheels; Recumbent bicycle, characterized in that the back portion includes a saddle separated. The recumbent bicycle according to claim 1, further comprising a handle and a rod, wherein the recumbent bicycle is used as a hand-cart bicycle which moves the handle back and forth with both hands and rotates the rear wheel with both feet to move forward. The method according to claim 1, wherein the handle and the handle crank gear is rotatably coupled, and further comprising a chain connected to the pedal crank gear to rotate the handle with both hands to rotate the rear wheel with both hands for use as a hand and foot bicycle, characterized in that Recumbent bike. The recumbent bicycle according to claim 1, 2, or 3, further comprising a known brake and a parking brake device which are braked by connecting a cable to the wheel part and connecting the cable. The recumbent bicycle according to claim 1, 2, 3, 4, further comprising a known transmission device in the pedal crank gear and the wheel. The recumbent bicycle according to claim 1, 2, 3, 4, 5, wherein the rear frame and the center frame are fixed.

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