TWM589673U - Folding mechanism for skating scooter - Google Patents

Abstract

This creation relates to a folding mechanism of a scooter, which includes a joint seat, an inclined tube and a handle. The joint seat is fixed on the top surface of the pedal and has two left and right opposite joint pieces, one of the joint pieces has a positioning slope, the bottom end of the inclined pipe is penetrated and pivotally connected between the two joint pieces, and the handle is located on the inclined pipe It has a side and a transmission end. The transmission end of the handle is connected to the inclined tube, so that the handle can drive the inclined tube to move relative to the pedal between the expanded position and the folded position. In addition, the transmission end of the handle has a positioning protrusion, which is used as the handle When the positioning convex part is pressed against the positioning slope of the joint piece, the inclined tube is positioned in the expanded position, so that the gap between the parts due to dimensional tolerances can be effectively eliminated to avoid abnormal noise and sway during riding Situation.

Description

Folding mechanism of scooter

This creation is related to a scooter, especially a folding mechanism of a scooter.

A general scooter will be equipped with a set of folding mechanisms in terms of structure. On the one hand, the rider can expand and position the rider riser through the aforementioned folding mechanism for riding. Fold in the direction of the pedal to reduce the volume to achieve the purpose of convenient storage.

However, the relevant components of the aforementioned folding mechanism are prone to gaps due to dimensional tolerances. This gap may cause abnormal sound or unstable shaking during riding, which not only causes a sense of insecurity to the rider, It is easier to affect the service life of the scooter.

The main purpose of this creation is to provide a folding mechanism for a scooter, which can effectively eliminate the gap caused by the dimensional tolerances to avoid the occurrence of abnormal sound or shaking during riding.

In order to achieve the above main purpose, the folding mechanism of this creation includes a joint seat, an inclined tube and a handle. The joint seat is fixed on the top surface of a pedal and has a first joint piece and a second joint piece. The first and second joint pieces are opposite to each other and spaced apart. The first joint piece has a The receiving part, the receiving part of the first joint piece has a positioning inclined surface; the bottom end of the inclined tube penetrates between the first and second joint pieces and is pivotally connected with the first and second joint pieces, Enabling the inclined tube to move relative to the pedal between an expanded position and a collapsed position; the handle is located on one side of the inclined tube and has a transmission end, the transmission end of the handle is connected to the inclined tube to drive the The inclined tube moves between the expanded position and the folded position. In addition, the transmission end of the handle has a positioning convex portion, when the positioning convex portion of the transmission end of the handle abuts against the receiving portion of the first joint piece When positioning the inclined plane, the inclined tube is positioned at the expanded position.

As can be seen from the above, the folding mechanism of this creation can effectively eliminate the gaps between the parts due to dimensional tolerances to avoid abnormal noise and sway during riding, thereby improving riding comfort.

Preferably, the handle has an operating end, and the inclined tube has two pin holes facing left and right, and a pin member and a return spring acting on the pin member are provided in the two pin holes, and the pin member has a protrusion Out of one of the blocking ends outside the pin hole, when the positioning convex portion of the transmission end of the handle abuts against the positioning slope of the receiving portion of the first joint piece, the operating end of the handle and the pin block The stop ends interfere with each other to prevent the handle from loosening due to impact or other improper external forces.

Preferably, the pin member has a large-diameter portion and a small-diameter portion, one ends of the large- and small-diameter portions are connected to each other, so that a shoulder surface is formed at the junction of the large- and small-diameter portions, and the other of the large-diameter portion One end protrudes out of one of the pin holes to form the stop end, and the other end of the small diameter portion protrudes out of the other pin hole and is provided with a buckle against the inclined tube to make the pin The pieces will not come off. The return spring is sleeved on the small-diameter portion of the pin member and abuts against the shoulder surface and the peripheral edge of the pin hole to provide an elastic force to keep the stop end of the pin member outside.

Preferably, the receiving portion of the first joint piece has a screw hole penetrating the positioning slope, a screw tube is provided in the screw hole, a compression spring is provided in the screw tube, and one end of the compression spring is pressed against In a ball, the ball abuts the positioning convex portion of the transmission end of the handle, so that the contact pressure between the positioning convex portion and the positioning slope is maintained to reduce surface fatigue and wear, and furthermore, the joint The seat and the handle can be made of hard materials such as steel to extend the service life.

The detailed structure, characteristics, assembly or use of the folding mechanism of the scooter provided by this creation will be described in the detailed description of the subsequent embodiments. However, those with ordinary knowledge in this creative field should be able to understand that these detailed descriptions and the specific examples listed for implementing this creative are only used to illustrate this creative, not to limit the scope of patent applications for this creative.

The applicant first states here that throughout the specification, including the embodiments described below and the claims in the scope of patent application, the directional terms are based on the directions in the drawings. Secondly, in the embodiments and drawings to be described below, the same element numbers represent the same or similar elements or their structural features.

Please refer to FIG. 1 and FIG. 2. The folding mechanism 10 of the present invention includes a joint seat 20, an inclined tube 30, and a handle 50.

The joint seat 20 is made of a hard material such as steel. The joint seat 20 is fixed on the top surface of the pedal 12 and located at the front end of the pedal 12. The joint seat 20 has a first joint piece 21 and a second joint piece 22. The first and second joint pieces 21 and 22 are opposite to each other and spaced apart. The first and second joint pieces 21 and 22 respectively have an upper card Groove 23, a lower clamping groove 24 and a guiding arc groove 25 connecting the upper and lower clamping grooves 23 and 24, in addition, the top edges of the first and second joint pieces 21 and 22 respectively have a receiving portion 26, each The receiving portion 26 has a positioning slope 27.

The bottom end of the inclined tube 30 penetrates between the first and second joint pieces 21 and 22 and has two left and right opposite bottom holes 31 through a lower shaft member 40 through the first and second joint pieces 21 , 22 and the two bottom holes 31 of the inclined tube 30, and then a lower shaft head 41 is used to lock the screw, so that the inclined tube 30 and the first and second joint pieces 21, 22 achieve a pivotal relationship. Thereby, the inclined tube 30 can move up and down relative to the pedal 12 between the expanded position P1 shown in FIG. 1 and the folded position P2 shown in FIG. 4. In order to prevent the inclined tube 30 from colliding with or rubbing against the joint seat 20 during the up and down movement relative to the pedal 12, a bush 42 is sleeved at both ends of the lower shaft member 40 to separate the two.

In addition, the inclined tube 30 has two left and right first elongated holes 32 located above the bottom hole 31, and a central axis member 43 is inserted through the guide arc grooves 25 of the first and second joint pieces 21 and 22 And the two first elongated holes 32 of the inclined tube 30, and then fixed with a middle shaft head 44 by screwing to avoid falling off, thereby, when the inclined tube 30 is located at the expanded position P1 shown in FIG. 1, the middle shaft The two ends of the piece 43 are clamped on the clamping grooves 23 on the first and second joint pieces 21, 22 to generate positioning (as shown in FIG. 3), when the inclined tube 30 is at the folded position P2 as shown in FIG. , The two ends of the middle shaft member 43 are clamped in the clamping grooves 24 under the first and second joint pieces 21 and 22 to generate positioning (as shown in FIG. 5 ), and when the inclined tube 30 pivots up and down relative to the pedal 12, the middle shaft The two ends of the member 43 move along the guide arc grooves 25 of the first and second joint pieces 21 and 22 to increase the stability and smoothness of the movement.

The handle 50 is made of a hard material such as steel. The handle 50 is located on the right side of the inclined tube 30 and has an operating end 51 and a transmission end 52. The transmission end 52 of the handle 50 is connected to the inclined tube 30 through a transmission assembly 60 to drive the inclined tube 30 in the deployed position P1 and collapse Act between position P2.

Furthermore, the transmission assembly 60 has an upper shaft member 61, an upper linkage seat 63, a lower linkage seat 68, a linkage shaft 71, a torsion spring 73, and a tension spring 74, wherein:

The upper shaft member 61 passes through a first perforation 64 of the upper linkage seat 63, two upper shaft holes 33 of the inclined tube 30, a liner 67, and a transmission hole 53 of the transmission end 52 of the handle 50, and then uses an upper shaft The head 62 is locked by screwing. Because the outer peripheral surface of the upper shaft 61, the hole wall of the first perforation 64 and the hole wall of the transmission hole 53 have a tangent plane design, when the operating end 51 of the handle 50 is received backward When the pulling force acts, the transmission end 52 of the handle 50 will drive the upper linkage seat 63 to rotate relative to the inclined tube 30 through the upper shaft member 61.

The bottom end of the upper linkage seat 63 has a second elongated hole 65, and the top end of the lower linkage seat 68 has two left and right opposite through holes 69. The linkage shaft 71 passes through the second elongated hole 65 of the upper linkage seat 63 and Two second perforations 69 of the lower linkage 68, and then fixed with a buckle 72 to avoid falling off, in addition, the bottom end of the lower linkage 68 has two third perforations 70 penetrated by the central shaft member 43, so When the upper linkage seat 63 rotates along with the upper shaft 61, it will pass through the second elongated hole 65 and then the end wall 66 pushes up the linkage shaft 71, and then the linkage shaft 71 drives the lower linkage seat 68 to rise together, and finally from the bottom The interlocking seat 68 drives the central shaft member 43 to rise together, so that the central shaft member 43 is separated from the upper locking groove 23 or the lower locking groove 24.

The torsion spring 73 is penetrated by the linkage shaft 71 and its two foot ends are pressed against the lower linkage seat 68. When the lower linkage seat 68 is lifted together with the linkage shaft 71, the two ends of the torsion spring 73 will be squeezed In order to accumulate the elastic restoring force, once the force applied to the handle 50 is released, the elastic restoring force provided by the torsion spring 73 will reset the lower linkage base 68.

The extension spring 74 is hooked on the middle and lower shaft members 43 and 40 with its two ends. Since the lower shaft member 40 is fixed and the middle shaft member 43 is lifted together with the lower linkage seat 68, the extension spring 74 will be pulled simultaneously Stretching to accumulate the elastic restoring force, once the force applied to the handle 50 is released, the elastic restoring force provided by the tension spring 74 will cause the central shaft member 43 to return.

As can be seen from the above, when the inclined tube 30 is to be folded, the operating end 51 of the handle 50 is used to pull the handle 50 backward. The handle 50 will first drive the upper shaft member 61 through the transmission end 52, and then the upper shaft member 61 The interlocking seat 63 rotates together (in the direction of FIG. 3 as the counterclockwise direction), and then the rear end wall 66 of the second elongated hole 65 is used to push the interlocking shaft 71 upward during the rotation of the upper interlocking seat 63, and then the interlocking The shaft 71 drives the lower interlocking seat 68 to rise together, and finally the bottom interlocking seat 68 drives the central shaft member 43 to rise together to disengage the central shaft member 43 from the upper clamping groove 23, at which time the inclined tube 30 can be folded in the direction of the pedal 12 . During the folding process, the central shaft member 43 moves along the direction of the guide arc slot 25 toward the lower slot 24 until the position of the lower slot 24 is reached, releasing the pulling force applied to the operating end 51 of the handle 50 at this time The central shaft member 43 will be clamped in the lower clamping groove 24 under the double force of the torsion spring 73 and the tension spring 74, as shown in FIGS. 4 and 5, so that the folding of the inclined tube 30 is completed.

On the contrary, when the inclined tube 30 is to be unfolded, the operating end 51 of the handle 50 is used to pull the handle 50 backward. The handle 50 will first drive the upper shaft 61 through the transmission end 52, and then the upper linkage 61 will drive the upper linkage seat 63 to rotate together (It looks counterclockwise in the direction of FIG. 5), then, during the rotation of the upper interlocking seat 63, the rear end wall 66 of the second elongated hole 65 is used to push the interlocking shaft 71 upward, and then the interlocking shaft 71 drives the lower interlocking shaft The seat 68 rises together, and finally the lower linkage seat 68 drives the central shaft member 43 to rise together, so that the central shaft member 43 is separated from the lower clamping groove 24, and the inclined tube 30 can be expanded away from the pedal 12 at this time. During the deployment process, the central shaft member 43 moves in the direction of the guide arc slot 25 toward the upper slot 23 until it reaches the position of the upper slot 23, releasing the pulling force applied to the operating end 51 of the handle 50 at this time The central shaft member 43 will be locked in the upper clamping groove 23 under the double acting force of the torsion spring 73 and the extension spring 74, and then further push forward the operating end 51 of the handle 50 to make the positioning of the handle 50 convex The portion 54 abuts the positioning inclined surface 27 of the first joint piece 21, as shown in FIG. 6, thereby completing the deployment and positioning of the inclined tube 30.

Please refer to FIG. 2, FIG. 7 and FIG. 8 again, the present invention further provides a pin 80 and a return spring 85. The pin 80 can be axially displaced through two left and right pin holes 34 of the inclined tube 30 There is a large diameter portion 81 and a small diameter portion 82 inside, one end of the large and small diameter portions 81, 82 are connected to each other, so that the junction of the two forms a shoulder surface 83, the other end of the large diameter portion 81 protrudes out The right pin hole 34 forms a stop end 84, and the other end of the small-diameter portion 82 protrudes from the left pin hole 34 and is provided with a retaining ring 86 for preventing the pin member 80 from falling off. The return spring 85 is sleeved on the small diameter portion 82 of the pin 80 and bears against the shoulder surface 83 and the peripheral edge of the left pin hole 34 to provide an elastic force to keep the blocking end 84 of the pin 80 outside the right pin hole 34 . Thereby, when the positioning convex portion 54 of the handle 50 abuts on the positioning slope 27 of the first joint piece 21, the operating end 51 of the handle 50 and the blocking end 84 of the pin 80 interfere with each other, as shown in FIG. 7, To prevent the handle 50 from being hit by impact or other improper external forces, the positioning protrusion 54 and the positioning slope 27 may be loosened. To fold the inclined tube 30 by operating the handle 50, it is necessary to press the stop end 84 of the pin 80 first, so that the pin 80 is submerged into the pin hole 34, as shown in FIG. 8, and then the operating end of the handle 50 51 is not interfered by the stop end 84 of the pin 80 in order to perform subsequent operations on the handle 50.

On the other hand, as shown in FIGS. 2 and 6, the abutment portion 26 of the first joint piece 21 has a screw hole 28 penetrating through the positioning slope 27. A screw tube 90 is provided in the screw hole 28. There is a compression spring 91, the top of the compression spring 91 abuts against a ball 92, so that the ball 92 abuts against the positioning protrusion 54 of the handle 50 under the elastic force of the compression spring 91, so that the positioning protrusion can be made through the ball 92 The proper contact pressure is maintained between the portion 54 and the positioning slope 27, and the pressing force of the ball 92 applied to the positioning convex portion 54 can be finely adjusted by adjusting the position of the solenoid 90 to reduce surface fatigue and wear and extend the service life .

In summary, the collapsing mechanism 10 of the present invention can effectively eliminate the gap caused by the dimensional tolerance between the various parts by using the positioning convex portion 54 and the positioning inclined surface 27, so as to avoid abnormal noise and shaking during riding The situation, and then achieve the effect of improving riding comfort. In addition, a protective cover 93 can be added to the outer peripheral surfaces of the first and second joint pieces 21 and 22 respectively. The two protective covers 93 can prevent the relevant parts between the two from being exposed to provide a protective effect.

10‧‧‧Folding organization 12‧‧‧ pedal 20‧‧‧joint seat 21‧‧‧The first joint film 22‧‧‧Second Joint Tablet 23‧‧‧Up card slot 24‧‧‧lower card slot 25‧‧‧Guide arc slot 26‧‧‧ Receiving Department 27‧‧‧Positioning slope 28‧‧‧Screw hole 30‧‧‧ Inclined tube 31‧‧‧Bottom hole 32‧‧‧The first long hole 33‧‧‧Upper shaft hole 34‧‧‧pin hole P1‧‧‧Expanded position P2‧‧‧Fold position 40‧‧‧lower shaft 41‧‧‧ Lower shaft head 42‧‧‧ Bush 43‧‧‧Central axis parts 44‧‧‧ Center shaft head 50‧‧‧handle 51‧‧‧operator 52‧‧‧ Transmission end 53‧‧‧ Transmission hole 54‧‧‧Positioning 60‧‧‧ Transmission components 61‧‧‧Upper shaft 62‧‧‧Upper shaft head 63‧‧‧Upper linkage 64‧‧‧First punch 65‧‧‧Second long hole 66‧‧‧ Rear wall 67‧‧‧Liner 68‧‧‧Lower linkage seat 69‧‧‧Second Perforation 70‧‧‧third perforation 71‧‧‧ linkage shaft 72‧‧‧buckle 73‧‧‧Torsion spring 74‧‧‧ Tension spring 80‧‧‧pin 81‧‧‧ Major Diameter Department 82‧‧‧ Small diameter part 83‧‧‧ Shoulder 84‧‧‧stop end 85‧‧‧Return spring 86‧‧‧buckle 90‧‧‧Screw 91‧‧‧Compression spring 92‧‧‧ball 93‧‧‧Protection cover

Figure 1 is a perspective view of the folding mechanism created, mainly showing that the inclined tube is in the expanded position. Figure 2 is a three-dimensional exploded view of the creative folding mechanism. Figure 3 is a cross-sectional view of the folding mechanism created, mainly showing that the inclined tube is in the expanded position. Figure 4 is similar to Figure 1, mainly showing that the inclined tube is located at the folded position. Fig. 5 is the same as Fig. 3, mainly showing that the inclined tube is located at the folded position. 6 is a partial cross-sectional view of the folding mechanism created, mainly showing that the positioning convex portion of the handle is pressed against the positioning inclined surface of the first joint piece, and the ball is pressed against the positioning convex portion of the handle. Figure 7 is a partial cross-sectional view of the folding mechanism created, mainly showing the interference between the pin and the handle. Figure 8 is similar to Figure 7 and mainly shows that the pin and the handle do not interfere with each other.

26‧‧‧ Receiving Department

27‧‧‧Positioning slope

28‧‧‧Screw hole

30‧‧‧ Inclined tube

50‧‧‧handle

51‧‧‧operator

54‧‧‧Positioning

84‧‧‧stop end

90‧‧‧Screw

91‧‧‧Compression spring

92‧‧‧ball

Claims (9)

A folding mechanism for a scooter. The scooter includes a pedal. The folding mechanism includes: An articulated seat is fixed on the top surface of the pedal and has a first articulated piece and a second articulated piece. The first and second articulated pieces are left-right opposed and spaced apart. The top edge of the first articulated piece has A receiving portion, the receiving portion has a positioning slope; An inclined tube, the bottom end of the inclined tube penetrates between the first and second joint pieces and is pivotally connected with the first and second joint pieces, so that the inclined pipe can be in an expanded position and a position relative to the pedal Acting between folding positions; and A handle is located on one side of the inclined tube and has a transmission end. The transmission end of the handle is connected to the inclined tube for driving the inclined tube between the expanded position and the folded position. The transmission end of the handle has A positioning convex portion, when the positioning convex portion of the transmission end of the handle abuts against the positioning inclined surface of the receiving portion of the first joint piece, the inclined tube is positioned at the deployed position. The folding mechanism of the scooter according to claim 1 further includes a pin member and a return spring, the pin member can be axially displaced into a pin hole of the inclined tube and has a protrusion out of the The stop end outside the pin hole, the return spring is arranged in the pin hole and acts on the pin member to provide an elastic force to keep the stop end of the pin member outside the pin hole; the handle further has an operating end When the positioning protrusion of the transmission end of the handle abuts against the positioning slope of the receiving portion of the first joint piece, the operation end of the handle interferes with the blocking end of the pin. The folding mechanism of the scooter according to claim 2, wherein the inclined tube has two pin holes, the pin member has a large diameter portion and a small diameter portion, and one ends of the large and small diameter portions are connected to each other so that A shoulder surface is formed at the junction of the large and small diameter portions, the other end of the large diameter portion protrudes out of one of the pin holes to form the stop end, and the other end of the small diameter portion protrudes from the other Outside the pin hole, there is a retaining ring against the inclined tube. The return spring is sleeved on the small-diameter portion of the pin and presses against the shoulder surface and one of the pin holes. The folding mechanism of the scooter according to any one of claims 1 to 3, wherein the resisting portion of the first joint piece has a screw hole penetrating the positioning slope, and a screw tube is provided in the screw hole, the A compression spring is provided in the solenoid, one end of the compression spring is pressed against a ball, and the ball is pressed against a positioning convex portion of the transmission end of the handle. The folding mechanism of the scooter according to claim 4, wherein the joint seat and the handle are made of hard material. The folding mechanism of the scooter according to claim 1, wherein the first and second joint pieces respectively have an upper clamping slot, a lower clamping slot and a guide arc slot connecting the upper and lower clamping slots, the oblique The bottom end of the tube is provided with a middle shaft member, the two ends of the middle shaft member are displaceably penetrated in the two guide arc slots, and when the inclined tube is in the expanded position, the two ends of the middle shaft member are stuck to the In the two upper clamping slots, when the inclined tube is in the folded position, the two ends of the central shaft member are clamped in the two lower clamping slots. The folding mechanism of the scooter according to claim 6, wherein the inclined tube has an upper shaft hole and a first elongated hole located below the upper shaft hole, the transmission end of the handle has a transmission hole, and the The transmission end of the handle is connected to the inclined tube by a transmission component. The transmission component has an upper linkage seat, a lower linkage seat, an upper shaft member and a linkage shaft. The upper linkage seat has a first perforation and a second length A hole, the lower linkage base has a second perforation and a third perforation, the upper shaft is rotatably penetrated through the shaft hole of the inclined tube, and is fixed to the first perforation of the upper linkage and the handle The transmission hole of the transmission end of the transmission shaft, the linkage shaft penetrates the second elongated hole of the upper linkage seat and the second perforation of the lower linkage seat, and the central shaft member penetrates the first elongated hole of the inclined tube and the lower linkage seat Of the third perforation. The folding mechanism of the scooter according to claim 7, wherein the bottom end of the inclined tube is pivotally connected to the first and second joint pieces by a lower shaft member, and the central shaft member and the lower shaft member are provided There is a tension spring. The folding mechanism of the scooter according to claim 7, wherein the transmission component further has a torsion spring, the torsion spring is sleeved on the linkage shaft and presses the lower linkage seat with its two ends.

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