KR200199363Y1 - Folding collapsible kick scooter - Google Patents

Abstract

The foldable kick scooter is connected between the base frame supported at the rear wheel, the handlebar and front fork assembly supported at the front wheel, the one end and pivoting position connected to the handlebar and the front fork assembly with respect to the base frame by the pivoting position. Connection bar having the other side which can be connected and pivoted between two upright protrusions on the base frame for the purpose of rotating the handlebar and the front fork assembly at In a foldable kick scooter manufactured with a locking lever, a holding down block, a quick release lock consisting of a shaft inserted through an arced slot on each protrusion and a cap nut, the shaft being an arced slot on a protrusion The lock lever is moved between the two extended ends of the The 90 ° rotational movement of the provided shaft forces the two protrusions in one extended end of the arc-shaped slot.

Description

Folding collapsible kick scooter}

The present invention relates to a kick scooter, and more particularly to a folding kick scooter.

1 to 4 show a conventional folding kick scooter. According to this design, a conventional foldable kick scooter includes a foldable coupling structure connected between a handle bar supported on the front wheel and a front fork assembly 92 and a base frame supported on the rear wheel. The coupling structure includes a bracket 95 securely fixed to the handle bar and the front fork assembly 92 and a coupling frame 93 firmly mounted to the front side of the base frame and coupled to the bracket 95. . Coupling frame 93 includes two smooth arc-shaped sliding slots 931 each formed in two opposing side walls and two engaging holes 932 at two distal ends of each sliding slot 931. . The bracket 95 has two lower pivot holes 952 which are coupled to pivot to the coupling frame 93 by the pivot shaft 96 and two opposing sides of the coupling frame 93 by the shaft 97. It has two upper coupling holes 951 which are engaged between the arc-shaped sliding slots 931 in the side wall. The shaft 97 is inserted through the arc-shaped sliding slots 931 on the two opposing side walls of the coupling frame 93, between two engaging holes 932 at the two distal ends of each arc-sliding slot 931. With bracket (95). The spring member 90 is connected between the pivot shaft 96 and the shaft 97 to pull the shaft 97 down. In addition, a control handle 98 having a hook 981 engaging the shaft 97 is mounted on the bracket 95. The control handle 98 is pivoted between the first position and the second position, the first position of which the shaft 97 is raised so that one end of the arc-shaped sliding slot 931 on each side wall of the coupling frame 93 is caught. The engagement can be released from the hole 932 to fold the foldable kick scooter, the second position being that the shaft 97 is disengaged from the hook 981 and pulled down by the spring member 90, Engagement holes 932 at one end of the arc-shaped sliding slot 931 on each side wall of the coupling frame 93 are engaged.

Such a coupling structure is complicated and manufacturing costs are high. In addition, the shaft 97 tends to be forced outward of the engaging hole 932 at one end of the arc-shaped sliding slot 931 on each side wall of the coupling frame 93 by an external force, so that the folding kick scooter is suddenly folded. It causes losing.

The present invention provides a folding kick scooter that eliminates the problems as described above.

1 is a side view of a foldable kick scooter according to the prior art,

2 is an enlarged exploded view of FIG. 1 showing the coupling structure between the bracket and the base frame.

3 is a plan view of a coupling structure of a conventional folding kick scooter assembled.

4 is a cross-sectional view of the assembly shown in FIG. 3.

5 is an exploded view of the coupling structure between the connecting bar and the base frame for the folding scooter according to the present invention.

6 is an assembly view of FIG.

7 is a side view of a portion of the present invention showing the handle bar and the front fork assembly and connection bar locked in the deployed position;

8 is a side view of a portion of the present invention showing the handle bar and front fork assembly and connection bar locked in the folded position;

9 is a perspective view of the folding kick scooter according to the present invention.

10 is an enlarged exploded view of a fold handlebar for the handlebar and front fork assembly according to the present invention.

11 is a cross-sectional view of the folding handle bar folded in accordance with the present invention.

12 is a view showing a folding kick scooter folded according to the present invention.

13 is a side view of a portion of the present invention showing the locking lever turned outward;

FIG. 14 is a view similar to FIG. 13 but showing the locking lever with the locking lever rotated by 90 °; FIG.

FIG. 15 is similar to FIG. 14 but shows an axis displaced with the locking lever from one extended end to the other extended end of the arc-shaped slot on one protruding piece.

FIG. 16 shows a locking lever similar to FIG. 15 but rotated 90 ° in the reverse direction.

-Explanation of symbols for the main parts of the drawing-

1: base frame 2: handlebar and front fork assembly

3: front wheel 4: rear wheel

5: connecting bar 11: protrusion

63: axis 92: handlebar and front fork assembly

93: coupling frame 95: bracket

211: outer sleeve 212: tubular hand grip

231: embossed 931: arc-shaped sliding slot

610: locking lever 932: locking hole

6311: flat wall 1112, 1113: protrusion

2111: engaging hole 2121: oval slot

According to the first aspect of the present invention, the foldable kick scooter has a base frame supported at the rear wheel, a handlebar and a front fork assembly supported at the front wheel, one end is connected to the handlebar and the front fork assembly, and the other end is in an extended position and a folded position. A connecting bar and a protrusion installed inside the connecting bar and the connecting bar having the other end connected to be pivoted between two arc-shaped upright protrusions on the base frame by the pivot shaft to rotate the handlebar and the front fork assembly in relation to the base frame therebetween. And a quick release lock that controls locking the bar and front fork assembly and connecting bar. The quick release lock consists of a locking lever, a holding-down block, a shaft and a cap nut inserted through an arced slot on each projection. The shaft is moved with the locking levers at two one extended ends of the arc slots on one projection, and is a flat rear which is forcibly engaged with two projections in one extended end of the arc slot with a 90 ° rotation of the shaft with the lock levers. Has an end. The flat rear end of the shaft disengages from the protrusion in one extended end of the arc-shaped slot when the shaft is rotated with the locking lever through 90 ° in the reverse direction. According to another aspect of the present invention, the handlebar and the front fork assembly include a vertical handlebar and a folding handlebar coupled to the top of the vertical handlebar. The foldable handlebar includes an outer sleeve secured to the handlebar restraint, two tubular hand handles each pivoting to two distal ends of the outer sleeve and locking means for locking the tubular hand handle in the extended position.

Referring to FIGS. 5-16, the foldable kick scooter as shown shows the base frame 1, the handlebar and front fork assembly 2, the front wheel 3, the rear wheel 4 and the connecting bar 5. It is set as a configuration. The handlebar and the front fork assembly 2 are supported at the front wheels 3 and include a foldable handlebar 21 for steering control. The connecting bar 5 is connected to the handlebar and the front fork assembly 2, and is fixed to the front part, and the pivot bar 51 enables the handlebar and the front fork assembly 2 to be operated (unfolded) and inactive ( It has a rear part connected between the associated connecting bar 5 between the folded) position and the projections of the two arced tops of the front part of the pivoting base frame 1. The rear wheel 4 is mounted to the rear of the base frame 1. The quick release lock 6 is installed in the projection 11 at the rear of the base frame 1 and the connecting bar 5, and the handlebar and front fork assembly (in the open (unfolded) position or in the non-actuated (folded) position). 2) and locking the connecting bar (5) is controlled. The quick release lock 6 is composed of a lock lever 61, a holding-down block 62, a shaft 63, a cap nut 64, and a pivot shaft 65. The shaft 63 is inserted through the through hole 621 on the holding-down block 62, and at one end 631 and the connecting bar 5 connected to the locking lever 61 by the pivot shaft 65. It has a through hole (not shown) and the other end thread part 632 inserted through the arc-shaped slot 111 on each protrusion part 11, and is screwed with the cap nut 64. As shown in FIG.

The rear end 631 of the shaft 63 is an elliptical flat cross section and has two opposing side walls 6311. The through hole 621 of the holding-down block 62 is an elliptical through hole that is forcibly fitted to the cross section of the rear end 631 of the shaft 63. The connecting bar 5 is a tubular member. The torsion spring 7 having a first end 71 fixed to the flat rear end 631 of the shaft 63 and a second end fixed to the peripheral wall 50 of the connecting bar 5 is a tubular connecting bar. It is attached to the shaft 63 in the inside of (5). The arc-shaped slots 111 on each projection 11 are intended for engagement with two facing ends 1111 and two opposing planar walls 6311 of the rear ends 631 of the shaft 63 at each expansion end 1111. It has two protrusions 1112 and 1113.

Referring again to the figures shown in FIGS. 13-16 and 7 or 8, the handlebar and front fork assembly 2 are actuated (unfolded) or inoperative (folded) with respect to the base frame 1. When rotated with the connecting bar 5 in the) position, the two opposing planar walls 6311 of the rear end 631 of the shaft 63 have one extended end of the arced slot 111 on one projection 11. It is forcibly engaged with two projections 1112 and 1113 in 1111, and then, at a predetermined position, the locking lever 610 is turned inward to lock the shaft 63. As shown in FIG. Conversely, when unlocking the shaft 63 for the purpose of being able to move the foldable kick scooter from an extended (or folded) position to a folded (or expanded) position, the locking lever 61 is (as shown in FIGS. 13 and 15). Of the rear end 631 of the shaft 63 from the two protrusions 1112 and 1113 at the extended end 1111 which is matched in the arced slot 111 on the protrusion 11. Rotate 90 ° to disengage the two corresponding sidewalls 6311 (as shown in FIGS. 14 and 16), and rotate the shaft 63 one of the arced slots 111 on each protrusion 11. It is possible to move from the extended end 1111 to the other extended end 1111 of the arc-shaped slot 111 on each projection 11. After moving from one extended end 111 of the arced slot 111 on each projection 11 to the other extended end 1111 of the arced slot 111 on each projection 11, the shaft 63 is moved. The two corresponding planar walls 6311 of the rear end 631 of the shaft 63 have two projections 1112 and 1113 on the mated expansion end 1111 of the arced slot 111 on one projection 11. The lock lever 61 is rotated by 90 ° to force the bit into the lock lever, and then the lock lever 61 is turned inward to lock the folding kick scooter in the folded (or unfolded) position.

9-12, the handlebar and front fork assembly 2 includes a vertical handlebar stem 20 and a horizontal foldable handlebar 21 connected at the top of the vertical handlebar stem 20. The foldable handlebar 21 includes two tubular hand handles 212 pivoted at two distal ends of the outer sleeve 211 and the outer sleeve 211 which are connected and fixed at the top of the handlebar stand 20. The outer sleeve 211 includes two engaging holes 2111 disposed at the top near the two distal ends from the outer sleeve and two bottom notches 2112 respectively formed at the two distal ends of the bottom surface. Each tubular hand handle 212 has an elliptical slot 2121 disposed near the curved end edge 2122, the radiating surface through the hole 2120, and the curved end edge 2122. The two rivets 22 are respectively inserted through the oval slots 2121 of the tubular hand handle 212 and secured to the two distal ends of the outer sleeve 211. In addition, the two retaining spring members 23 are respectively mounted in the tubular hand handle 212, and on one tubular hand figure 212 for the purpose of being bitten by one catching hole 2111 on the outer sleeve 211. Each has a relief 231 which protrudes from the radiation surface through the through hole 2120.

The design of the bottom notch 2112 of the outer sleeve 211 and the curved end edge 2122 on each tubular hand grip 212 allows the tubular hand handle 212 to be unfolded with respect to each rivet 22 (Fig. It is possible to smoothly rotate between the folded position (as shown in Fig. 9) and the folded position (as shown in Figs. 11 and 12). When the foldable handlebar 21 is folded, the embossed portion 231 of each retaining spring element 23 is forced inwards, and the engagement is released from the engaging hole 2111 on the outer sleeve 211, The tubular hand handle 212 is then axially pulled outward from the outer sleeve 211, respectively, and then rotated downward. When returning the handlebar 21, which can be folded and folded from the folded position to the unfolded position, the process as described above is reversed.

Claims (2)

Front wheel; Rear wheel; A handlebar and a front fork assembly supported by the front wheels; A base frame having an arcuate upright protrusion having two arc slots in the front and a rear supported by the rear wheel; One end connected to the handlebar and the front fork assembly and fixed on the base frame such that the handlebar and the front fork assembly can be rotated with respect to the base frame by a pivot between the open position and the folded position. A connecting bar having the other end that can be pivotally connected between the two arcuate upright protrusions; And It is installed at the rear end of the base frame and the connecting bar, and controls the locking of the handlebar and front fork assembly and the connecting bar and comprises a locking lever and holding down block, a shaft and a cap nut, the shaft is the holding down It is inserted into the block through the through-hole, the locking lever is connected to the pivoting means by the pivot axis means, the corresponding end is screwed, inserted through the through-hole on the connecting bar and the arc slot on each projection on the base frame And a quick release lock threaded with said cap nut; The rear end of the shaft has an elliptical cross section with a flat end, has two corresponding planar walls, and the through hole of the holding down block is elliptical so that it can be forcibly fitted to the cross section of the rear end of the shaft, The connecting bar is a tubular member having a torsion spring having a first end fixed to a flat end of the shaft and a second end fixed to a peripheral wall of the connecting bar inside the shaft circumference; The arced slot on each protrusion of the base frame has two extended ends, and the enlarged end of the arc slot on one protrusion of the base frame is extended to one end of the arc slot on one protrusion of the base frame. Foldable kick scooter, characterized in that each of the two vertically formed projections are engaged with the two opposite flat sidewalls of the rear end of the shaft in a 90 ° rotational motion of the shaft with the locking lever after the rear end of the shaft has moved. . 2. The handlebar and front fork assembly of claim 1, wherein the handlebar and front fork assembly includes a vertical handlebar arm and a foldable handlebar connected to the top of the vertical handlebar arm; The foldable handlebar has an outer sleeve connected to and fixed to the handlebar stand, two tubular hand handles each pivoting at two distal ends of the outer sleeve, and two mounted inside the tubular hand handle to lock the tubular hand handle. And retaining springs of The outer sleeve includes two catching holes disposed in the upper surface and two bottom notches respectively formed in two distal ends of the bottom surface, The tubular handle has a curved end edge inserted through the hole into the radial top surface of the outer sleeve and an elliptical slot disposed near the curved end edge and fastened to the outer sleeve by rivets, And the retaining spring elements each have an embossed portion extending from the radiated top on one tubular hand grip for the purpose of engaging into one catching hole on the outer sleeve.