TW201805200A - Folding device mounted in a folding vehicle having the same width at the expanding position or the folding position - Google Patents

Abstract

A folding device mounted in a folding vehicle comprises: a frame body comprising the first pivot-connection part, the second pivot-connection part, the first positioning part, and the second positioning part; and a link rod set comprising the first link rod, the second link rod, and the third link rod. The first link rod comprises the third pivot-connection part and the fourth pivot-connection part. The third pivot-connection part is pivotally connected to the second pivot-connection part, the second link rod comprises the fifth pivot-connection part and the 6th pivot-connection part, the fifth pivot-connection part is pivotally connected to the fourth pivot-connection part, the third link rod comprises the 7th pivot-connection part and the 8th pivot-connection part, the 7th pivot-connection part is pivotally connected to the first pivot-connection part, the 8th pivot-connection part is pivotally connected to the 6th pivot-connection part. The positioning member is mounted in the link rod set and selectively positioned on the first positioning part or the second positioning part. The seat cushion is mounted on the third link rod, the 7th pivot-connection part is located between the seat cushion and the 8th pivot-connection part. The crank sprocket set is mounted on the second link rod.

Description

Folding device capable of being installed in a folding cart

The invention discloses a folding device, particularly a folding device capable of being installed in a folding vehicle.

Reference is made to the Taiwan Patent No. I367842 folding bicycle, which includes a main body with two upper and lower tube sections; a front bracket which is provided on the front side of the main body and is used to pivotally connect a front wheel; a rear A bracket is provided on the rear side of the main vehicle body and is used to pivotally connect a rear wheel; a swivel pair is provided on the main vehicle body, and the swivel pair includes a first turning portion, a A second turning part and at least one fixing part, the first turning part having a sliding telescoping part, the first turning part and the second turning part are respectively arranged on the two pipe parts of the main vehicle body and do not rotate at the same time On the axis, and the fixing part is used for fixing one of the first turning part and the second turning part; a seat set is set on the main vehicle body; thereby, when the rotation axis of different When the first turning part and the second turning part rotate, the first turning part communicates with the sliding telescopic part and slides in the pipe part, thereby achieving the double folding of the main vehicle body, so that the front wheel and the rear wheel can be completely Correspondence and overlap.

The conventional folding bicycle can be folded by using the front bracket and the rear bracket to pivot relative to each other. The aforementioned folding method will increase the width of the bicycle and cause difficulties for users to carry.

In view of the fact that the above-mentioned problems of the prior art cannot be effectively solved and overcome, the applicant filed this patent application to solve the foregoing problems.

The problem to be solved by the present invention is that the conventional folding bicycle can be folded by pivoting the front bracket and the rear bracket relative to each other. The aforementioned folding method will increase the width of the bicycle and cause difficulties for users to carry.

The present invention can be installed in a folding device of a folding vehicle, and includes: a frame body including a first pivoting portion, a second pivoting portion, a first positioning portion and a second positioning portion; a link group It includes a first link, a second link, and a third link. The first link includes a third pivoting portion and a fourth pivoting portion. The third pivoting portion is pivotally connected to the A second pivotal portion, the second link includes a fifth pivotal portion and a sixth pivotal portion, the fifth pivotal portion is pivotally connected to the fourth pivotal portion, and the third link includes a seventh A pivoting portion and an eighth pivoting portion, the seventh pivoting portion being pivotally connected to the first pivoting portion, the eighth pivoting portion being pivotally connected to the sixth pivoting portion; a positioning member provided on the connecting portion The lever group is selectively positioned at the first positioning portion or the second positioning portion, a pad is disposed at the third link, and the seventh pivot portion is located at the seat cushion and the eighth pivot Between the two parts; a crank gear set, which is arranged on the second link; the folding device can be changed between an unfolded position and a folded position; when the folding device is located in the unfolded position, the fixed The positioning member is positioned at the first positioning portion, the second link, the seat cushion and the crank gear set are far from the frame body. When the folding device is located at the folded position, the positioning member is positioned at the second positioning portion, The second connecting rod, the seat cushion and the crank-toothed disc group are close to the frame body.

The folding device is disposed in the folding vehicle and can be changed between the unfolded position and the folded position. When the folded device is located in the unfolded position, the user can ride the folding vehicle and when the folded device is in the folded position The components of the folding device can be close to each other, thereby reducing the volume of the folding cart. The width of the folding device in the unfolded position or the folded position is the same, so that a user can ride or easily carry a folding vehicle with the folding device.

Other objects, advantages, and novelty of the present invention will be more apparent from the following detailed description and related drawings.

Regarding the technology, means and effects adopted by the present invention, a preferred embodiment is described in detail below with reference to the drawings. This is for illustration purposes only and is not limited by such devices in patent applications.

Refer to Figures 1 to 6. The folding device 1 of the present invention includes a frame body 10, a link group 20, a positioning member 30, a pad 40, and a crank gear plate group 50. The link group 20 is disposed on the frame body 10 so as to be opposite to the frame body 10. The frame body 10 is pivoted. The positioning member 30 is disposed on the link group 20 and selectively connects the frame body 10 to position the relative position of the link group 20 and the frame body 10. The seat cushion 40 and the crank teeth The disk group 50 is respectively connected to the link group 20 and is located on the opposite sides of the frame body 10. When the link group 20 pivots relative to the frame body 10, the seat cushion 40 and the crank gear disk group 50 receive the link The group 20 moves in close proximity to or away from the frame body 10.

The frame 10 includes a front section 11 and a rear section 12. The rear section 12 can be pivotally connected to the front section 11 so that the front section 11 and the rear section 12 can pivot relative to each other with a first rotation axis L1 as an axis. The front section 11 includes a head pipe section 111 disposed at an end of the front section 11 away from the rear section 12. The rear section 12 includes a first pivoting portion 121, a second pivoting portion 122, a first positioning portion 123, a second positioning portion 124, an engaging portion 125, and a stop portion 126. The first pivot The connecting portion 121 is located at one end of the rear section 12 away from the front section 11. The second pivoting portion 122, the first positioning portion 123 and the second positioning portion 124 are located at one end of the rear section 12 adjacent to the front section 11, and the second The pivoting portion 122 is located between the first positioning portion 123 and the second positioning portion 124. The engaging portion 125 is disposed on an end surface of the rear section 12 adjacent to the front section 11 and is detachably connected to the front section 11. The stop A portion 126 is protrudingly disposed at the rear section 12 and is adjacent to an end of the first pivotal connection portion 121 away from the second pivotal connection portion 122. The stopper portion 126 can abut against the link group 20. The first positioning portion 123 has a first receiving hole 1231, and the second positioning portion 124 has a second receiving hole 1241. The first receiving hole 1231 and the second receiving hole 1241 are recessed in the rear section 12 respectively. Same side.

The link set 20 includes a first link 21, a second link 22 and a third link 23. The first link 21 and the third link 23 are respectively pivotally connected to the rear section 12 of the frame 10. The opposite ends of the second link 22 are respectively pivotally connected to the first link 21 and the third link 23, and the positioning member 30 is disposed at one end of the first link 21 opposite to the second link 22 and Selectively positioned on the first positioning portion 123 or the second positioning portion 124, the seat cushion 40 is disposed on an end of the third link 23 opposite to the second link 22, and the crank gear set 50 is disposed on the第二 杆 22。 The second connecting rod 22.

The first connecting rod 21 includes a first extension 211, a second extension 212, a third pivoting portion 213, a fourth pivoting portion 214, and a perforation 215. The third pivoting portion 213 is disposed at Between the first extension section 211 and the second extension section 212, a first angle is formed between the first extension section 211 and the second extension section 212, and the fourth pivotal portion 214 is disposed on the first extension The segment 211 is opposite to one end of the second extension segment 212. The perforation 215 penetrates the second extension segment 212 and is opposite to one end of the first extension segment 211. The third pivotal portion 213 is pivotally connected to the second pivotal portion 122. Therefore, the first link 21 can be pivoted relative to the rear section 12 of the frame body 10 with a second rotation axis L2 as an axis.

The second link 22 includes a fifth pivoting portion 221 and a sixth pivoting portion 222. The fifth pivoting portion 221 and the sixth pivoting portion 222 are respectively disposed at opposite ends of the second link 22. And the crank gear set 50 is disposed between the fifth pivoting portion 221 and the sixth pivoting portion 222 of the second link 22, and the fifth pivoting portion 221 is pivotally connected to the fourth pivoting portion 214, Therefore, the first link 21 and the second link 22 can pivot relative to each other with a third rotation axis L3 as an axis.

The third link 23 includes a first lever segment 231, a second lever segment 232, a seventh pivot joint portion 233, and an eighth pivot joint portion 234. The seventh pivot joint portion 233 is disposed on the first lever. A second included angle is formed between the first rod segment 231 and the second rod segment 232 between the segment 231 and the second rod segment 232, and the eighth pivotal portion 234 is disposed opposite to the first rod segment 231. At one end of the second lever segment 232, the seat cushion 40 is disposed at an end of the second lever segment 232 opposite to the first lever segment 231, and the seventh pivot joint portion 233 is pivotally connected to the first pivot joint portion 121, so that The third link 23 can be pivoted relative to the rear section 12 of the frame 10 with a fourth rotation axis L4 as an axis. The eighth pivoting portion 234 is pivotally connected to the sixth pivoting portion 222, so that the second connection The lever 22 and the third link 23 can pivot relative to each other with a fifth rotation axis L5 as an axis.

The positioning member 30 includes a positioning convex portion 31, a penetrating and extending portion 32, and a handle portion 33. The penetrating and extending portion 32 is disposed between the positioning convex portion 31 and the handle portion 33. A through hole 215 is formed, and the positioning convex portion 31 selectively extends into the first receiving hole 1231 or the second receiving hole 1241.

The folding device 1 can be changed between an unfolded position (FIG. 3) and a folded position (FIG. 5). When the folding device 1 is located in the unfolded position, the positioning member 30 is positioned on the first positioning portion 123, the positioning convex portion 31 projects into the first receiving hole 1231, and the third link 23 abuts against the stop portion 126, the first rod segment 231 is separated from the rear segment 12 of the frame body 10 by an angle, the engaging portion 125 is engaged with the front segment 11, the second link 22, the seat cushion 40, and the crank disc assembly 50 is far from the rear section 12 of the frame body 10. When the folding device 1 is changed from the unfolded position to the folded position, the user holds the handle portion 33 and releases the positioning convex portion 31 from the first receiving hole 1231, and faces the positioning member 30 toward the second receiving portion. The direction of the hole 1241 moves, the first link 21 and the third link 23 pivot with respect to the rear section 12, and the third link 23 gradually moves away from the stopper 126, and then the front section 11 is released from the buckle The engaging portion 125 causes the front section 11 to pivot away from the engaging section 125 relative to the rear section 12, and the second link 22, the seat cushion 40 and the crank-toothed disc assembly 50 gradually approach the rear section 12. When the folding device 1 is in the folded position, the positioning member 30 is positioned on the second positioning portion 124, and the positioning convex portion 31 extends into the second receiving hole 1241, and the third link 23 is far from the stop Part 126, the first rod segment 231 is parallel to the rear segment 12 of the frame body 10, the front segment 11 is separated from the engaging part 125 and spaced at an angle between the rear segments 12, and the seat cushion 40 is located in the rear segment 12 adjacent to the front segment At one end of 11, the second connecting rod 22, the seat cushion 40 and the crank-toothed disc assembly 50 are close to the rear section 12 of the frame body 10.

In this embodiment, the number of the stoppers 126 is two, and the two stoppers 126 are respectively protrudingly disposed on the opposite sides of the rear section 12, and the number of the third link 23 is two. Three connecting rods 23 are located on opposite sides of the rear section 12 respectively, and the second and seventh pivoting portions 233 are respectively pivotally connected to the opposite sides of the first pivoting portion 121, and the second and eighth pivoting portions 234 are respectively pivoted to the sixth On the opposite sides of the pivoting portion 222, the two third links 23 pivot against the rear section 12 to be able to abut the two stopping portions 126. The link group 20 includes a fourth link 24, and the fourth link The lever 24 is pivotally connected to the second pivoting portion 122 and the fifth pivoting portion 221 and is located on one side of the rear section 12 opposite to the first link 21. The first rotation axis L1 and the second rotation axis L2. The third rotation axis L3, the fourth rotation axis L4 and the fifth rotation axis L5 are parallel to each other.

In this embodiment, a front fork A is rotatably disposed at the head pipe portion 111 of the front section 11, and a front wheel B and a handle C are respectively provided on opposite ends of the front fork A, and the handle C is provided for users to hold. The seat cushion 40 is provided for a user to ride. A rear fork D is provided at one end of the rear section 12 opposite to the front section 11. The rear fork D is provided with a rear wheel E, and two pedals F are provided in the crank gear set 50. The user stomped.

In summary, the folding device of the present invention which can be installed in a folding vehicle has the following advantages:

1. When the folding device 1 is located in the unfolded position, the positioning member 30 is positioned on the first positioning portion 123, and the positioning convex portion 31 projects into the first receiving hole 1231, and the third link 23 abuts against the stop Blocking part 126, the first lever segment 231 is separated from the rear segment 12 of the frame 10 by an angle, the engaging part 125 is engaged with the front segment 11, the second link 22, the seat cushion 40 and the crank teeth The disc group 50 is far away from the rear section 12 of the frame body 10. When the folding device 1 is changed from the unfolded position to the folded position, the user holds the handle portion 33 and releases the positioning convex portion 31 from the first receiving hole 1231, and faces the positioning member 30 toward the second receiving portion. The direction of the hole 1241 moves, the first link 21 and the third link 23 pivot with respect to the rear section 12, and the third link 23 gradually moves away from the stopper 126, and then the front section 11 is released from the buckle The engaging portion 125 causes the front section 11 to pivot away from the engaging section 125 relative to the rear section 12, and the second link 22, the seat cushion 40 and the crank-toothed disc assembly 50 gradually approach the rear section 12. When the folding device 1 is in the folded position, the positioning member 30 is positioned on the second positioning portion 124, and the positioning convex portion 31 extends into the second receiving hole 1241, and the third link 23 is far from the stop Part 126, the first rod segment 231 is parallel to the rear segment 12 of the frame body 10, the front segment 11 is separated from the engaging part 125 and spaced at an angle between the rear segments 12, and the seat cushion 40 is located in the rear segment 12 adjacent to the front segment At one end of 11, the second connecting rod 22, the seat cushion 40 and the crank-toothed disc assembly 50 are close to the rear section 12 of the frame body 10.

2. With the folding device 1 set in the folding vehicle and being able to change between the unfolded position and the folded position, when the folding device 1 is in the unfolded position, the user can ride the folding vehicle, and when the folding device 1 Located in the folded position, the second link 22, the seat cushion 40 and the crank gear set 50 are close to the frame body 10, and the front wheel B is close to the rear wheel E, thereby reducing the volume of the folding vehicle. This enables the user to ride or easily carry a folding vehicle with the folding device 1.

However, the above are only the preferred embodiments of the present invention. When the scope of implementation of the present invention cannot be limited by this, the changes in numerical values or the replacement of equivalent elements, or the equivalent changes made in accordance with the scope of the patent application of the present invention and Modifications should still fall within the scope of the invention patent.

1‧‧‧ folding device
10‧‧‧frame
11‧‧‧ front
111‧‧‧Head Tube Department
12‧‧‧ after
121‧‧‧ the first pivot joint
122‧‧‧Second pivot joint
123‧‧‧First positioning section
1231‧‧‧First container
124‧‧‧Second positioning section
1241‧‧‧Second mesopore
125‧‧‧ Buckle
126‧‧‧stop
20‧‧‧ connecting rod set
21‧‧‧ the first connecting rod
211‧‧‧first extension
212‧‧‧second extension
213‧‧‧Third pivot
214‧‧‧Fourth pivot joint
215‧‧‧perforation
22‧‧‧ second link
221‧‧‧Fifth pivot joint
222‧‧‧Sixth pivot
23‧‧‧ third link
231‧‧‧First par
232‧‧‧Second par
233‧‧‧Seventh pivot joint
234‧‧‧ Eighth Pivot
24‧‧‧ Fourth Link
30‧‧‧ Positioning piece
31‧‧‧ positioning protrusion
32‧‧‧ through extension
33‧‧‧Handle
40‧‧‧ seat cushion
50‧‧‧ crank crankset
A‧‧‧ Fork
B‧‧‧ front wheel
C‧‧‧handle
D‧‧‧ rear fork
E‧‧‧ rear wheel
F‧‧‧ pedal
L1‧‧‧first rotation axis
L2‧‧‧Second rotation axis
L3‧‧‧third rotation axis
L4‧‧‧ Fourth rotation axis
L5‧‧‧ fifth rotation axis

FIG. 1 is a perspective view of a folding device provided in a folding cart according to the present invention, showing that the folding device is in an unfolded position. FIG. 2 is a partial exploded view taken from FIG. 1. Fig. 3: A side view taken from Fig. 1. FIG. 4 is a continuation of FIG. 3 and shows the folding device changing from the unfolded position to the folded position. FIG. 5 is a continuation of FIG. 4 and shows that the folding device is in a folded position. FIG. 6 is a perspective view of a folding device provided in a folding cart according to the present invention, showing that the folding device is in a folded position.

1‧‧‧ folding device

10‧‧‧frame

11‧‧‧ front

111‧‧‧Head Tube Department

12‧‧‧ after

123‧‧‧First positioning section

124‧‧‧Second positioning section

1241‧‧‧Second mesopore

126‧‧‧stop

20‧‧‧ connecting rod set

21‧‧‧ the first connecting rod

211‧‧‧first extension

212‧‧‧second extension

22‧‧‧ second link

221‧‧‧Fifth pivot joint

222‧‧‧Sixth pivot

23‧‧‧ third link

231‧‧‧First par

232‧‧‧Second par

30‧‧‧ Positioning piece

40‧‧‧ seat cushion

50‧‧‧ crank crankset

Claims (8)

A folding device capable of being disposed on a folding vehicle, comprising: a frame body including a first pivoting portion, a second pivoting portion, a first positioning portion and a second positioning portion; a link group, It includes a first link, a second link, and a third link. The first link includes a third pivotal portion and a fourth pivotal portion. The third pivotal portion is pivotally connected to the first pivotal portion. Two pivotal joints, the second link includes a fifth pivotal joint and a sixth pivotal joint, the fifth pivotal joint pivots to the fourth pivotal joint, and the third link includes a seventh pivotal joint A connecting portion and an eighth pivoting portion, the seventh pivoting portion being pivotally connected to the first pivoting portion, the eighth pivoting portion being pivotally connected to the sixth pivoting portion; a positioning member provided on the connecting rod And is selectively positioned on the first positioning portion or the second positioning portion, a pad is disposed on the third link, and the seventh pivot portion is located on the seat cushion and the eighth pivot portion Between; a crank gear set, which is arranged on the second link; the folding device can be changed between an unfolded position and a folded position, when the folding device is located in the unfolded position, the The positioning member is positioned at the first positioning portion, the second link, the seat cushion, and the crank gear set are far from the frame body. When the folding device is located at the folded position, the positioning member is positioned at the second positioning portion , The second link, the seat cushion and the crank-toothed disc group are close to the frame body. The folding device capable of being disposed in a folding vehicle according to claim 1, wherein the second pivotal portion is located between the first positioning portion and the second positioning portion, and the first link includes a first extension section and A second extension, the third pivotal portion is disposed between the first extension and the second extension, a first angle is formed between the first extension and the second extension, and the fourth The pivoting portion is disposed at one end of the first extension section opposite to the second extension section, and the positioning member is disposed at one end of the second extension section opposite to the first extension section and is movable relative to the second extension section. The folding device capable of being installed in a folding vehicle according to claim 2, wherein the first positioning portion has a first receiving hole, the second positioning portion has a second receiving hole, and the first link has a perforation. The perforation runs through one end of the second extension portion opposite to the first extension portion. The positioning member includes a positioning convex portion, a penetrating portion and a handle portion, and the penetrating portion is disposed on the positioning convex portion and the handle portion. In between, the penetrating portion penetrates the perforation, and the positioning convex portion selectively extends into the first receiving hole or the second receiving hole. When the folding device is located in the unfolded position, the positioning protruding portion extends into the The first receiving hole, when the folding device is located in the folded position, the positioning convex portion projects into the second receiving hole. The folding device capable of being installed in a folding vehicle according to any one of claims 1 to 3, wherein the frame body includes a front section and a rear section, and the rear section is pivotably connected to the front section and includes a buckling part, the The fastening portion is disposed on an end surface of the rear section adjacent to the front section and is detachably connected to the front section. The first pivot connection portion is located at an end of the rear section away from the front section. The second pivot connection portion, the first positioning portion and the The second positioning portion is located at one end of the rear section adjacent to the front section. When the folding device is in the unfolded position, the fastening section is connected to the front section. When the folding device is in the folded position, the front section is separated from the fastening section and connected with the folding section. The rear segments are separated by an angle, and the seat cushion is located at one end of the rear segment adjacent to the front segment. The folding device capable of being installed in a folding vehicle according to claim 4, wherein the third link includes a first lever segment and a second lever segment, and the seventh pivotal portion is disposed between the first lever segment and the A second included angle is formed between the first pole segment and the second pole segment between the second pole segments, and the eighth pivotal portion is disposed at an end of the first pole segment opposite to the second pole segment. The seat cushion is disposed at one end of the second pole section opposite to the first pole section. When the folding device is located in the unfolded position, the first pole section and the rear section of the frame are separated by an angle. In the folded position, the first pole section is parallel to the rear section of the frame body. The folding device capable of being installed in a folding vehicle according to claim 4, wherein the frame body includes a stopper portion protrudingly disposed at the rear section and adjacent to the first pivotal portion away from the second pivotal portion. At one end of the connecting portion, the third link can pivot relative to the rear section to abut the stop portion. When the folding device is in the unfolded position, the third link abuts the stop portion. When the folding device Located in the folded position, the third link is far from the stop portion. The folding device capable of being installed in a folding vehicle according to claim 6, wherein the number of the stoppers is two, the two stoppers are respectively protrudingly disposed on opposite sides of the rear section, and the number of the third links There are two, the two third links are respectively located on opposite sides of the rear section, the second seventh pivot joints are respectively pivotally connected to the opposite sides of the first pivot joint, and the second eighth pivot joints are respectively pivotally connected to the two The sixth pivotal joint is on opposite sides, and the two third links can pivot against the rear section and can abut the two stoppers. The folding device capable of being installed in a folding vehicle according to claim 4, wherein the crank gear set is disposed between a fifth pivoting portion and a sixth pivoting portion of the second link.