TWI614175B - Foldable frame of an electric-scooter - Google Patents

Abstract

The invention provides a frame folding structure of an electric scooter, which mainly comprises a front frame and a frame which is assembled by the first folding and receiving pivot shaft at the rear end of the front frame, and the rear frame is provided with two folding guides. a track; a rear end of the front frame is provided with a push-pull driving portion at a rear lateral spacing of the first folding support shaft; and a cross-shaped bracket is disposed on one of the rear frames, including the first and second inclined forks of the phase pivot group The lower end of the first inclined fork frame is provided with two sliding seats mounted on the two folding guide rails, the lower oblique fork frame is pivoted at the rear end of the rear frame; and the foldable auxiliary bracket is supported by the third folding shaft The pivoting group is disposed at an upper end of the first diagonal fork frame; the two linking arms are respectively pivotally connected between the push-pull driving portion and the sliding seat; a positioning member is disposed at a rear end of the front frame corresponding to the front end of the rear frame, and the switching control member is Switch its positioning and release status.

Description

Electric scooter frame folding structure

The invention relates to a partial structure of an electric scooter; in particular to an innovative revealer of a frame folding structure of an electric scooter.

There are many types of electric scooters that are currently available on the market, and the so-called electric scooter of the present invention refers to a three-wheel or four-wheel configuration of the wheel body, and the seat portion thereof. It is a model with a back seat; this type of electric scooter is popular among seniors and people with reduced mobility because of its smooth and easy-to-operate driving conditions.

However, the electric scooter of the type referred to in the present invention also has a problem that the vehicle body area is large and the space is relatively occupied. In the past, the related industry tried to develop an improved electric vehicle with the vehicle body folding function. Model mode, but its folding effect is still not perfect, due to the simple folding of the main body of the car body, does not consider the height drop between the seat cushion and the main frame of the seat, if If the state of the drop cannot be reduced synchronously, the main frame will be folded and the area will not be significantly reduced and will not be able to achieve the substantial meaning of the folding. As a result, the conventional electric scooter still fails to reach the current situation. The lack of practical folding function.

Therefore, in view of the problems existing in the frame folding structure of the above-mentioned conventional electric scooter, how to develop an innovative structure that can be more ideal and practical, and the relevant industry should further consider the goal and direction of breakthrough; In view of this, the inventor has been engaged in the manufacturing development and design experience of related products for many years. After detailed design and careful evaluation, the inventor has finally obtained the practical invention.

The main object of the present invention is to provide a frame folding structure for an electric scooter, and the technical problem to be solved is to aim at how to develop a new type of electric scooter frame folding structure which is more ideal and practical. Think about innovation breakthroughs.

The technical feature of the present invention is mainly that the frame folding structure of the electric scooter comprises: a front frame, including a front end and a rear end, a front end of the vehicle is provided with a front head; and a rear frame, The front end is pivotally assembled to the rear end of the front frame by the first folding support shaft, and the rear frame and the front frame can be selectively folded or flattened with the first folding support shaft as a fulcrum, and then The frame structure is provided with a two-folding guide rail with a spaced-apart configuration and a forward-backward extension type; a push-pull driving portion is disposed at the rear end of the front frame, and the push-pull driving portion is located opposite to the first folding support shaft a laterally spaced position; a cross-shaped bracket mounted on the rear frame structure, the cross-shaped bracket includes first and second diagonal yokes, the first slanting fork frame by the second second fulcrum shaft pivot group The lower end is provided with two sliding seats which are arranged to be front and rear slidingly arranged on the rear frame and provided with two folding guide rails. The lower inclined fork frame is arranged at the lower end of the rear frame at the rear of the rear frame and at the rear of the folding guiding track. a second seat connecting portion is provided with a first seat connecting portion; a foldable auxiliary bracket is fastened at a lower end thereof The third folding and receiving pivot shaft is disposed at an upper end of the first inclined fork frame, the second seat connecting portion is disposed at an upper end of the foldable auxiliary bracket, and the second seat connecting portion is spaced apart from the first seat connecting portion. The first seat connecting portion and the second seat connecting portion are respectively connected to the bottom portion of the seat cushion of the foldable seat provided by the electric scooter; the two linked arms are respectively connected to the front vehicle When the push-pull driving portion of the rear end of the frame is disposed between the second sliding seat provided at the lower end of the first diagonal fork frame, when the rear frame and the front frame are in a folded state mode, the rear frame rear end is pulled through the two-linking arm. The second sliding seat provided at the lower end of the first diagonal fork is moved forward; a positioning member is arranged at a rear end of the front frame and a front end of the rear frame to obtain positioning when the front and rear frames are in a flat state mode; The switching control member is disposed at a corresponding position of the positioning member for switching to control the positioning and releasing state of the positioning member.

The main effects and advantages of the present invention are that during the folding operation of the front frame and the rear frame of the electric scooter, the cross-shaped bracket and the foldable auxiliary bracket are driven by the linkage arm to generate a frame type change, thereby driving the electric driving step. The height of the foldable seat of the car is reduced, and the practical improvement of the folding effect is greatly improved.

Another main object of the present invention is that the positioning member includes two elastic positioning pins and two positioning holes, and the switching control member is in a pull-up belt type, and the two ends are respectively connected to the two elastic positioning pins. A technical feature is that when the user pulls up from the middle of the switching control member of the pull-up belt type, the two elastic positioning bolts are synchronously pulled to be inwardly retracted to form a release state of each of the corresponding positioning holes. Thereby, the switching control member of the pull-belt type can be pulled up, and the front and rear frames can be released and folded, thereby achieving a practical and convenient improvement of the folding operation.

Please refer to Figures 1, 2, 3 and 4, which are preferred embodiments of the frame folding structure of the electric scooter of the present invention, but the embodiments are for illustrative purposes only and are not applicable to patent applications. The limitation of this structure;

The frame folding structure of the electric scooter A includes the following structure: a front frame 10 including a front end 11 and a rear end 12, wherein the front end 11 is provided with a front end 13; The rear frame 20 has a front end pivotally assembled to the rear end 12 of the front frame 10 by more than one first folding support shaft 21, and the rear frame 20 and the front frame can be selectively The folding support shaft 21 is in the form of a fulcrum in a folded state or a flat state. The rear frame 20 is provided with a two-folding guide rail 22 which is spaced apart and has a forward-backward extending configuration; a push-pull driving portion 14 . The rear end of the front frame 10 is disposed at an interval relative to the rear side of the first folding support shaft 21; a cross bracket 30 is mounted on the rear vehicle In the structure of the frame 20, the cross-shaped bracket 30 includes a first tilting fork 31 and a second skewing bracket 32 which are pivotally connected by two second folding shafts 302, wherein the first diagonal fork 31 The lower end is provided with two sliding seats 33 which are arranged to be slidably mounted on the rear frame 20 of the rear frame 20, and the lower end of the second inclined yoke 32 is pivoted to the rear vehicle. The rear end of the frame 20 is located at a rear of the folding guide rail 22, and the upper end of the second skewer frame 32 is provided with a first seat connecting portion 34; a foldable sub-bracket 40, the lower end of which is The third folding shaft 403 is pivotally disposed at an upper end of the first skewer 31 provided by the cross bracket 30, and the upper end of the foldable sub-frame 40 is provided with a second seat connecting portion 41, the second seat The chair connecting portion 41 and the first seat connecting portion 34 are disposed in a spaced relationship, and the first seat connecting portion 34 and the second seat connecting portion 41 are configured to be respectively pivotally connected to the electric scooter A is disposed at a bottom portion of the seat cushion 51 of the foldable seat 50; the two linked arms 60 are respectively pivotally connected to the push-pull driving portion 14 of the rear end 12 of the front frame 10 and the first skew fork When the rear frame 20 and the front frame 10 are in a folded state mode, the rear end 12 of the front frame 10 pulls the first through the two linkage arms 60. A second sliding seat 33 is disposed at a lower end of the inclined fork frame 31; a positioning member 70 is disposed at a rear end 12 of the front frame 10 and a front end of the rear frame 20 for making the front frame 10 and the rear vehicle frame 20 is positioned in the flat state mode; a switching control member 80 is disposed at a corresponding position of the positioning member for switching to control the positioning and releasing state of the positioning member 70.

As shown in FIG. 5, in this example, the positioning member 70 includes two elastic positioning pins 71 and two positioning holes 72 (note: only one of them is disclosed in the figure), and the two positioning holes 72 are respectively disposed in the rear vehicle. The front end of the frame 20 is spaced apart from each other. The two elastic positioning pins 71 are disposed at two intervals of the rear end 12 of the front frame 10, and the two elastic positioning pins 71 are respectively in a horizontal axial relationship with the two positioning holes 72. And the elastic positioning pin 71 is in a state of being normally inserted into the positioning hole 72; the switching control member 80 is set as a pull band type as shown in FIGS. 4 and 6, and the two ends are respectively connected. The two elastic positioning pins 71 are configured to synchronously pull the two elastic positioning pins 71 to be relatively retracted to form their respective disengagements when the user pulls up from the middle of the switching control member 80 of the pull-belt type. Corresponding to the release state of the positioning hole 72; by the embodiment of the present embodiment, when the user pulls up from the middle of the switching control member 80 of the pull-up belt type (as shown by the arrow L1 in FIG. 7), The synchronously pulling two elastic positioning pins 71 are relatively retracted to form a release state of each of the corresponding positioning holes 72. This switching can be controlled through control of the pulling member 80 of the band patterns for Lahti up operation, while releasing the positioned state and collapsible front frame 10 and rear frame 20, so that collapsible efficient operations easier.

As shown in the second and fifth figures, in this example, a column 23 is respectively protruded from the front end of the rear frame 20, and a vertical abutment frame is arranged correspondingly at the rear end of the front frame 10. And the upright abutment frame 15 is locked with an adjusting bolt 16 for abutting against the corresponding column 23, thereby selectively adjusting the forward and reverse directions of the adjusting bolt 16 to adjust the front frame. The flatness of the flat state mode state of the rear frame 20 and the rear frame 20.

As shown in FIG. 3, in this example, when the front frame 10 and the rear frame 20 are in the flat state mode, the rear end 12 of the front frame 10 and the front end of the rear frame 20 are upper and lower. Overlay relationship.

With the above-mentioned structural composition and technical features, the frame folding structure of the electric scooter disclosed in the present invention is first shown in FIG. The front frame 10 and the rear frame 20 are in a flat state mode. At this time, as shown in FIG. 5, the elastic positioning pin 71 provided at the rear end 12 of the front frame 10 is inserted into the front end of the rear frame 20. The position hole 72 is set to obtain the positioning; then, when the user wants to fold the frame, as shown in FIG. 7, the user can pull up the middle of the switching control member 80 of the pull control band type. (As indicated by the arrow L1), the two elastic positioning pins 71 can be synchronously pulled to be inwardly retracted to form a release state of each of the corresponding positioning holes 72 (shown in FIG. 5); thus, The positioning state between the front frame 10 and the rear frame 20 is released, so when the user continues to pull the switching control member 80 upward, as shown in FIG. 8, between the front frame 10 and the rear frame 20 The folding state can be gradually reached, in the process, because the push-pull driving portion 14 provided at the rear end of the front frame 10 is opposite to the first folding The fulcrum 21 produces a change in the upward rotation, so that the slider 33 provided at the lower end of the first yoke 31 of the cross yoke 30 is pulled forward by the linkage arm 60, thereby driving the frame of the cross frame 30 to be laterally generated. The expansion and the height drop change, and in order to comply with the change, the restriction of the distance between the first seat connecting portion 34 and the second seat connecting portion 41 is not affected, and the foldable sub-bracket 40 can be folded. The linkage solves this problem so that the seat cushion 51 of the foldable seat 50 is lowered as the height of the cross-shaped bracket 30 is lowered; then, as shown in Fig. 9, the current frame 10 and the rear frame 20 are completely completed. When folding, the user folds the seat back 52 of the foldable seat 50 forward and folds against the seat cushion 51, thereby completing the frame folding action of the electric scooter.

Advantages of the Invention: The frame folding structure of the electric scooter is mainly provided by the front frame, the rear frame, the push-pull driving portion, the cross-shaped bracket, the foldable auxiliary bracket, the linkage arm, The innovative unique structural form and technical features of the positioning member and the switching control member, etc., enable the present invention to fold the front frame and the rear frame of the electric scooter in comparison with the conventional structure proposed in [Prior Art] In the process, the cross-shaped bracket and the foldable sub-bracket are driven by the linkage arm to generate a frame type change, thereby driving the height of the foldable seat of the electric scooter to reduce the practical effect of greatly improving the folding effect.

A‧‧‧ electric scooter
10‧‧‧ front frame
11‧‧‧ head end
12‧‧‧ Backend
13‧‧‧ head rod
14‧‧‧Pushing and driving department
15‧‧‧Standing against the shelf
16‧‧‧Adjusting bolts
20‧‧‧ rear frame
21‧‧‧First folding shaft
22‧‧‧Retracting guide track
23‧‧‧ Column
30‧‧‧cross bracket
302‧‧‧Second folding shaft
31‧‧‧First slanting fork
32‧‧‧Second skewer
33‧‧‧Slide
34‧‧‧First seat connection
40‧‧‧Foldable sub-bracket
403‧‧‧Third folding shaft
41‧‧‧Second seat connection
50‧‧‧Folding seat
51‧‧‧ Chair cushion
52‧‧‧Back of the chair
60‧‧‧ linkage arm
70‧‧‧ Positioning members
71‧‧‧Flexible positioning bolt
72‧‧‧Positioning holes
80‧‧‧Switching control components

Figure 1 is a perspective view of a preferred embodiment of the invention (note: only partial decomposition). Fig. 2 is a perspective enlarged view of a partial structure of the present invention. Figure 3 is a side elevational view of a preferred embodiment of the invention. Figure 4 is a plan view of a partial structure of the present invention. Fig. 5 is a schematic view showing a preferred embodiment of the positioning member of the present invention. Fig. 6 is a side view showing the unactuated state of the switching control member of the present invention. Fig. 7 is a side elevational view showing the switching control member of the present invention being pulled up. Figure 8 is a schematic view of the frame of the present invention in a folded state. Figure 9 is a schematic view of the frame of the present invention in a folded state.

A‧‧‧ electric scooter

10‧‧‧ front frame

11‧‧‧ head end

12‧‧‧ Backend

13‧‧‧ head rod

20‧‧‧ rear frame

21‧‧‧First folding shaft

22‧‧‧Retracting guide track

30‧‧‧cross bracket

302‧‧‧Second folding shaft

31‧‧‧First slanting fork

32‧‧‧Second skewer

33‧‧‧Slide

34‧‧‧First seat connection

40‧‧‧Foldable sub-bracket

403‧‧‧Third folding shaft

41‧‧‧Second seat connection

50‧‧‧Folding seat

51‧‧‧ Chair cushion

60‧‧‧ linkage arm

80‧‧‧Switching control components

Claims (4)

A frame folding structure for an electric scooter includes: a front frame including a front end and a rear end, wherein the front end of the vehicle is provided with a front end; and the rear frame has a front end The first folding shaft pivoting group is disposed at the rear end of the front frame, and the rear frame and the front frame are selectively detachable with the first folding shaft as a fulcrum or flat state. In a mode, the rear frame structure is provided with a two-folding guide rail with a spaced-apart configuration and a forward-backward extension type; a push-pull driving portion is disposed at the rear end of the front frame, and the push-pull driving portion is relatively located The rear side of the first folding support shaft is disposed at a spaced position; a cross-shaped bracket is mounted on the rear frame structure, and the cross-shaped bracket includes one of two second folding shaft pivot groups a first slanting yoke and a second slanting yoke, wherein the lower yoke of the first yoke is provided with two sliding seats, and the two sliding guide rails are arranged to be slidably mounted on the rear frame. a lower end of the second skewer is pivotally disposed at a rear end of the rear frame and located at a rear of the folding guide rail, the first The upper end of the two slanting forks is provided with a first seat connecting portion; a foldable auxiliary bracket has a lower end pivoted to the upper end of the first diagonal yoke provided by the cross-shaped bracket by a third folding and receiving shaft The upper end of the foldable sub-mount is provided with a second seat connecting portion, and the second seat connecting portion is spaced apart from the first seat connecting portion, and the first seat connecting portion and the first seat connecting portion The two-seat connection portion is configured to be respectively connected to the bottom of the seat cushion of the foldable seat provided by the electric scooter; the second linkage arm is respectively connected to the rear end of the front frame Between the push-pull driving portion and the second sliding seat provided at the lower end of the first diagonal yoke, when the rear frame and the front frame are in a folded state mode, the front frame rear end passes through the two linked arms Pulling the two sliding seats provided at the lower end of the first diagonal fork to move forward; a positioning member is disposed at a rear end of the front frame and a front end of the rear frame for flattening the front frame and the rear frame Positioning is obtained in the state mode; and a switching control member is disposed at a corresponding position of the positioning member for switching control The positioning and release state of the positioning member. The frame folding structure of the electric scooter according to claim 1, wherein the positioning member comprises two elastic positioning pins and two positioning holes, and the two positioning holes are respectively disposed at two positions at the front end of the rear frame. The two elastic positioning pins are respectively disposed at two positions at the rear end of the front frame, and the two elastic positioning pins are respectively in a horizontal axial relative relationship with the two positioning holes, and the elastic positioning bolt is normally elastic. Inserting the positioning hole into the positioning hole; the switching control member is configured as a pull-up belt type, and the two ends are respectively connected to the two elastic positioning pins, thereby constituting the middle of the switching control member of the user by the pulling band type When the device is pulled up, the two elastic positioning pins are synchronously pulled to be inwardly retracted to form a release state of each of the corresponding positioning holes. The frame folding structure of the electric scooter according to claim 2, wherein a column is respectively protruded from the front end of the rear frame, and the rear end of the front frame is separated by two Abutting against the shelf plate, and the vertical abutting frame plate lock is provided with an adjusting bolt against the corresponding column, thereby selectively adjusting the forward and backward through the adjusting bolt to adjust the front frame Flattened with the flat state mode of the rear frame. The frame folding structure of the electric scooter according to claim 3, wherein the front frame and the rear frame are in the flat state mode, and the front frame rear end and the rear frame are ordered The front ends are superposed on top of each other.