TWI240046B - Offset adjustment device for axle of wheel - Google Patents

Abstract

The present invention provides an offset adjustment device for an axle of a wheel, which provides the axle with functions of offset adjustment and rapid positioning within the radius range of the wheel so that the axle can be positioned at the center or an offset position of the wheel. The invented offset adjustment device includes: a wheel body, two racks, a slide, a gear, a knob, and a bushing. The rotation or non-rotation of the knob enables the gear and two racks to produce dual-sided or one-sided engagement. In the event of one-sided engagement, just via enabling the gear to rotate under the rotation of the knob, it can be achieved to enable simultaneous movements of the slide and the bushing fixed on the lower end of the slide so that the axis of the axle will be positioned at the center of the wheel or be shifted to an offset position. In the event of two-sided engagement, the gear is restricted so that the slide and the bushing are fixed and immobilized such that the axis of the axle no longer moves.

Description

1240046 V. Description of the invention ("---------- [Technical field to which the invention belongs] The Tailu axis on the day of the f is about a wheel body's axis offset adjustment structure 'especially the wheel' rear range It has the functions of free movement and positioning adjustment. [Previous technology] Center ::: The body uses ★ according to different properties. The setting of the wheel center can be divided into Zhong Er iu or eccentric setting. Most of the wheel wheels for vehicles The hearts are all centered a ^ μ so that the car body can achieve smooth requirements when traveling. However, some car body 2 take special needs, such as toy cars, entertainment 1, = scooters or baby carriages to produce fun effects, training foot strength. Training vehicle and fitness fitness / 17 ^ 7 1 Ρ will use the eccentric design of the axle, such as domestic bulletins 49 7588, 470039, and 285963, etc., which is achieved by using the eccentric wheel to move up and down with low fluctuations. The use of up-and-down shaking or torque changes [Content of the invention] 1. The technical problem to be solved: The axis of the wheel of the wheel body is not given I ^ ^ @ ^ ^ θ L God center or eccentric setting, after positioning That is, it is fixed and no longer answers wt. ^ ^ „The axis will be adjusted only if the axle is deflected by external force. When it is lacking, the ancient times. ^ 0 、,, There are wheel bodies with adjustable axis offset, but most of them are complex structures and difficult to adjust. Private c.. ^ ^ ^ Yu times can only be implemented with the use of hand tools (such as wrenches, screwdrivers, or other special adjustment tools a, ^ ^ table n positive tools); It is very possible for young children to easily follow the road and stand on the road ^, being sad can make it easy for young children to operate and lead to unexpected thinking, such as

1240046 V. Description of the invention (2) Unexpected problems occurred when operating the eccentric adjustment device. Therefore, how to design an adjustment device with a simple structure, which can quickly perform shaft deflection without the use of hand tools, and has a safe operation is the main demand of the present invention. Second, the technical means to solve the problem: 1. The structure of the present invention includes: a wheel body, which has an elongated slot in the center of the wheel body; two racks, which are arranged on the left and right sides of the inner edge of the slot and are symmetrical One of which is a rack with full teeth and the other is a rack with half teeth; a slide seat can be moved up and down in a long slide groove of the wheel body, and the upper part of the slide seat has a gear groove, and A gear hole is provided in the gear groove, and a bushing hole is provided in the lower part of the slide seat; a gear is provided in the gear groove of the slide seat, and both sides of the gear are respectively meshed with the left and right racks, and the front and rear pivots of the gear are respectively It penetrates into the pivot hole of the front and rear slides, and a positioning spring is arranged in series on the periphery of the front pivot; a knob is fixed to the end of the pivot before the gear; a bushing is inserted into the bushings of the front and rear slides Holes are fixed and combined, and the hollow shaft sleeve of the bushing can be fixed and combined after the wheel axle of the vehicle body is penetrated. According to this, whether the pull of the knob or not causes a bilateral spraying or Unilateral u-tooth cooperation Rotating will cause the slide seat and the bushing fixed at the lower end of the slide seat to be displaced at the same time, so that the axis of the wheel axle is located at the center or eccentric position of the wheel body;

1240046 V. Description of the invention (3)

When the wheels are fed bilaterally, the shaft center of the wheel no longer moves. The gear is controlled and the slider and the bushing are positioned. 2. Contrast the effect of the prior art: By implementing the present invention, the following advantages can be obtained ... 1. It can provide the wheel body with the function of adjusting the axis deviation. 2 · = You can use the hand tool to adjust the axis offset of the wheel shaft, and you need to use the pull and rotation of the knob to change the axis displacement. You can only position after loosening 3, so it is not what ordinary children can Understand and implement. The δ weekly adjustment method is simple and fast, and can be fixed immediately after the offset adjustment without loosening 4 to make the riding safe. The adjustable eccentric wheel body can make the car body more interesting. It can also be used for sports and exercise. It can also be used as a general bicycle body. Therefore, it can be used for bicycles, tricycles, toy cars, tractors, scooters, and d trainers. , Exercise bikes, etc., it has a very wide range of applications. [Implementation method] 乂: Detailed description according to the embodiment shown in the figure is as follows: Body decomposition = shown in the figure, which is the axial offset adjustment structure of the wheel body of the present invention-full tooth Z is revealed in this figure The offset adjustment structure 10 is composed of a wheel body 1 and 4 1 with an I bar 2 and a half-tooth rack 3 with a slide 4 (composed by the front slide shaft 7 and the Mo 4 seat 2), A combination of a gear 5, a knob 6, a picture, and a piece, the three-dimensional appearance of the combination is like the second

1240046 V. Description of the invention (4) In the foregoing, the center of the wheel body 1 is provided with a penetrating strip-shaped chute 1 1, and the inner and left sides of the chute 11 are provided with a tooth groove 1 2 and 1 3 respectively. , And the side walls of the two coggings are penetrating. Please refer to the third figure (the X-X cross-sectional view of the first figure) and the fourth figure (a partial enlarged view of the third figure). The full-tooth rack 2 is fixed on the side of the chute 1 1 In the tooth groove 12, the fixing method can be implanted and fixed by bolts 20 or fixed by gluing, welding and other methods as shown in the figure, and the tooth surface of the rack 2 is a complete full tooth 2 1. The aforementioned half-toothed rack 3 is fixed in the rack 1 3 on the other side of the inner edge of the chute 1 1 and is symmetrically arranged with the rack 2. The fixing method can be implanted and fixed with bolts 30 as shown in the figure. Or fixed by other methods such as gluing and welding, and the tooth surface of the rack 3 is half tooth 3 1, and the other half is a flat step 3 2, that is, the width of the half tooth 31 of the rack 3 is equal to the rack 2 One-half of the width of the full-tooth 21 — 〇 As mentioned above, the slide 4 is formed by the two front and rear slides 4 1 and 4 2 mating. The fixing method can be fixed by the bolt 40 shown in the fifth figure. The slide seat may be fixed in the slide groove 11 or combined by other fixing means. Previously, the periphery of the slide seat 41 had a protruding pressure plate 411, and the periphery of the rear slide seat 42 also had a protrusion pressure plate 421. The two pressure plates 411, 421 is clamped on the front and back sides of the chute 11 so that the slide seat 4 can generate an upward and downward movement in the chute 11. The upper inner walls of the front and rear slides 4 1 and 4 2 are each provided with a recessed gear groove 4 3. The two sides of the gear groove 4 3 are a through gap 4 3 1, and the gear grooves 4 3 of the front slide 4 1 are recessed. There are positioning grooves 4 3 2 and pivot holes 4 1 2, wherein the diameter of the positioning grooves 4 3 2 is larger than the diameter of the pivot holes 4 1 2, and the gear grooves 4 3 of the sliding seat 4 2 have only the small diameter pivot holes 4. twenty two ;

1240046 V. Description of the invention (5) In addition, the lower part of the front and rear two sliding seats 4 1 and 4 2 is also provided with a bushing hole 4 4 penetrating therethrough. This bushing hole 4 4 allows the bushing 7 to penetrate laterally. As mentioned above, the gear 5 is provided in the gear grooves 4 3 of the front and rear slides 4 1 and 4 2, and the teeth of the gear 5 are notched 4 3 1 on the two sides of the gear groove 4 3 and the full teeth 2 1 of the rack 2 respectively. And the half teeth 31 of the rack 3 feed each other, and the front and rear pivots 5 1 and 5 4 of the gear 5 penetrate into the pivot holes 412 and 422 of the front and rear slides 41 and 42 respectively; The front side surface ring is provided with a recessed spring groove 5 2, so a set of positioning springs 5 3 located on the periphery of the front pivot 51 can be introduced for positioning, and the other ends of the positioning springs 5 abut against the front slide 4 1 Inside the positioning groove 4 3 2. In addition, a bolt hole 5 1 1 is provided at the axial center of the front pivot 5 1, and an eccentric positioning rod 5 1 2 is provided on the side of the bolt hole 5 1 1, which is used for combining with the knob 6. As mentioned above, the inner surface of the knob 6 has a groove 61 for the front pivot 51 to pass through at its end, and a hole 6 2 is provided in the center of the groove 61 for the bolt 6 3 to pass through and screw into the pivot 51. Inside the bolt hole 5 1 1, the knob 6 and the pivot 51 are combined and fixed; in addition, the side of the perforation 6 2 is provided with an eccentric positioning hole 6 4 which can be penetrated by the aforementioned positioning rod 5 1 2 to prevent the knob 6 and the front The pivot 51 is loosened due to relative deflection. Secondly, the eccentric positioning method can also be replaced by other methods, such as screwing (not disclosed) through the knob 6 and then screwing into the eccentric hole (not disclosed) on the side wall of the front pivot 51, or radial screwing After passing the knob 6 and then screwing into the side wall of the front pivot 51, the fixed combination function can be achieved. Refer to the fifth figure (the Y-Y cross-sectional view of the second figure), which reveals that one end of the bushing 7 has a hollow sleeve 7 1 for the axle 8 1 to be inserted, and then

1240046 V. Description of the invention (6) The two are fixedly combined by an insert such as a pin 8 2 or a positioning pin; and the bushing 7 is inserted into the bushing hole 4 4 provided in the slide 4 and the bushing 7 There is a convex cap 72 on the outside, and the cap 72 has a perforation 73 for the bolt 74 to pass through and then fixed to the front sliding seat 42. In addition, the cooperation relationship between the rack 2, the rack 3, the slide 4, the gear 5, the knob 6 and the bushing 7 can be further shown in the sixth figure, wherein the implementation of the bushing 7 is to cooperate with the axle 8 1 It is set, therefore, when the shape of the axle 8 1 is changed, the implementation of the bushing 7 needs to be changed in accordance with the axle 8 1. For example, the bushing 7 a shown in the figure has a through shaft hole 7 5 for supply. The wheel shaft 81 is implemented through, which is slightly different from the other bushing 7 which does not have a through shaft hole. As shown in the seventh and eighth figures, the seventh figure shows the three-dimensional schematic diagram of the gear 5 with the rack 2 and the rack 3 (the viewing direction is opposite to the first and sixth figures). Figure 8 is a cross-sectional view of the shaft center deviation adjustment device in a positioning state. Both figures reveal that the gear 5 meshes with the left and right racks 2 and 3, so the gear 5 is restricted by the left and right racks and cannot be fixed. Therefore, the slide 4 combined with the gear 5 ( That is, the combination of the front and rear two sliding seats 4 1 and 4 2) and the bushing 7 fixed under the sliding seat 4 have achieved the positioning effect; in addition, the position of the bushing 7 disclosed in the eighth figure is exactly at the center of the wheel body 1 Point, so the wheel body 1 can roll normally when rotating. Please refer to the ninth and tenth diagrams, wherein the ninth diagram is a schematic cross-sectional view of the wheel body after the knob 6 is pulled, and the tenth diagram is a partial enlarged view of the ninth diagram. When the knob 6 is grasped by the user's palm and pulled forward, it will cause teeth

Page 10 1240046 V. Description of the invention (7) The wheel 5 is shifted toward the front slide 4 1 at this time, the gear 5 is still meshing with the full tooth 2 1 of the rack 2 but not with the half tooth 3 1 of the rack 3 It is meshed and corresponds to the flat step portion 32, so the gear 5 is in a single-sided meshing state, and its three-dimensional appearance is as shown in the eleventh figure (this can be compared with the seventh figure). Because the gear 5 is meshed on one side, it can produce free rotation. At this time, if the knob 6 is rotated up or down, the gear 5 can also be raised and lowered together. On the contrary, the slide 4 and the bush 7 can be adjusted. The lifting position is as shown in Figure 12. However, after the position adjustment of the bushing 7 is completed, the pull force of the knob 6 only needs to be released (that is, the palm is detached from the knob 6), and the gear 5 at this time is subjected to the re-pushing action of the positioning spring 5 3 (refer to the fourth figure). The rapid restoration causes the gear 5 to re-engage with the full tooth 21 of the rack 2 and the half tooth 3 1 of the rack 3, and the rear pivot 5 4 pivots into the pivot hole 4 2 of the rear slide 4 2 again. In this way, the gear 5 is positioned without rotating. The twelfth figure reveals that the position of the bushing 7 is below the wheel body 1 and is at a distance L from the center point, which shows that the wheel body 1 has been eccentric, so the wheel body 1 can eccentrically roll when rotating. From the above description, it can be known that when the knob 6 is pulled and simultaneously lifted and lowered, the gear 5 can also move together. Because the gear 5 only needs to mesh with the full teeth 2 1 p of the rack 2 (the other side is connected with the rack 3). Corresponding to the flat step section 3 2), the height position can be adjusted according to the user's wishes, and the position of the bushing 7 can be changed relatively, so that the axis of the wheel is at the center point or eccentric position, so that The wheel body 1 can be rolled normally or eccentrically; and since the knob 6 and the gear 5 can be adjusted freely up and down, the position of the bushing 7 can be adjusted steplessly. Furthermore, as long as the knob 6 is no longer pulled, the Gear 5

1240046

V. Description of the invention (8) It is restored under the action of the positioning spring 5 3, and meshes with the bilateral racks 2 and 3 to achieve positioning without loosening. On the contrary, the bushing 7 is positioned and no longer moves. This achieves the function of fast positioning. In addition, the implementation of the knob β can also make it difficult for ordinary children to operate. Only with the assistance of an adult can the offset of the axis of the child's wheel body be changed, and the child can be prevented from accidentally occurring. In addition, the knob 6 does not protrude beyond the wheel ° =, so it will not catch or restrain foreign objects and cause accidents to the car body. Therefore, the wheel body with adjustable axial displacement is extremely safe. Χ ^ If the thirteenth type of car body is used, as long as the front part of the axle is used, the ground will be generated, such as the fourteenth car 8 and the rear wheel 1 in the stroller 8. The fun game effect is the heart wheel body 10, which makes the fun more interesting. Except for the center of various car bodies such as the car disclosed in the fifteenth figure, the axial center and the middle will decrease when shown. As shown in the figure, for example, the center position is shown in the undulation chart, when 0 Β, the body . If, then the front of the stroller is improved. On the above-mentioned fun bicycle 9, only the moment affects the movement of the heart through this kind of position of the stroller 8 heart position. When the present invention requires only the rear of the wheel axle, the rear two parts of the carriage 8 Both are more entertaining to use or the eccentric wheel body of the scooter will make the use gap L more and use the relationship and install those who can produce the taste before and after the axis of the eccentricity of the child. Outside the function, dragging 10 people can forge the sprocket body 1 in the front wheel car 8 line taste game wheel body 1 in the lowering and rolling wheels are front and back, can also ride the car, train wheel axle When applying force, the user will use the vehicle body 10 Α. Similarly, it can be operated when it is installed at the position of the child's heart, which achieves the high and low undulations of the present invention. It is suitable for training the car and keeping the heart away from the wheel.

Page 12 1240046 V. Description of the invention (9) When the axis and the center return to one point, the vehicle body can be used as a general bicycle, and the invention can provide the vehicle body with a multi-purpose use function. In addition, although the above mentioned and the greater the gap between the axis and the center, the force will be relatively increased, but when the pedal is lowered by a quarter of a turn from the highest point of the wheel body, it is easier to apply force than before, so The user only needs to grasp the travel of this quarter of a circle, and generate an impulse under the force plus inertia, so that the user will not be too strenuous when the pedal slides a quarter of a circle from the lowest point, but will be more difficult. Well, this delicate relationship allows users to recognize different usage states and situations. The foregoing is based on the detailed description of the drawings of the present invention, and only those skilled in the art can make various changes within the scope of the present invention. Therefore, any implementation that uses the structure related to the present invention can be implemented as long as it is within the scope of the present invention Various equivalent modification embodiments should be included in the scope of the present invention.

Page 13 1240046 Brief description of the drawings [Simplified description of the drawings] The first figure: An exploded perspective view of the wheel body shaft offset adjustment structure of the present invention. The second figure ... is the perspective view of the first figure of the axial offset adjustment device. The third figure is a sectional view taken along the line X-X of the first figure. The fourth picture is a partial enlarged view of the third picture. Fifth figure: Y ~ Y sectional view of the second figure. Figure 6: Schematic illustration of three-dimensional assembly of some components of the present invention. Figure 7: A perspective view of the cooperation of the gears of the present invention with full racks and half racks (the viewing direction is opposite to that of the first and sixth figures). Figure 8: A cross-sectional view of the shaft center deviation adjustment device in a positioning state. Ninth figure: A schematic cross-sectional view of a wheel body after the knob of the present invention is pulled. The tenth picture: a partial enlarged view of the ninth picture. Fig. 11 is a perspective view showing a state in which a gear and a half rack of the present invention are disengaged. Fig. 12: Schematic diagram of wheel body axial displacement of the present invention. Figure 13: Schematic diagram of the eccentric wheel as the front wheel of the stroller. Figure 14: Schematic diagram of the action of the eccentric wheel as the rear wheel of the stroller. Figure 15: Schematic diagram of eccentric wheels as the front and rear wheels of a bicycle. [Explanation of component symbols] 10 · · • Adjustment device 1 0 A · • Eccentric front wheel 1 0 B · • Eccentric rear wheel 1 ...... Wheel body

Page 14 1240046 Brief description of the drawing 1 2, 1 3 2 4 2 1 4 2 2 4 3 · 4 3 1 4 3 2 5 2

• Sliding grooves • Slotted full-rack racks • Bolts • Full-tooth half-rack racks • Half-tooth flat-stepped sections • Slide front slides • Press plates • Gear • Pivot • Bolt hole positioning rod

Page 12 1240046

Page 16

Claims (1)

— .________ 一 ............ 1240046 6. One of the scope of patent application • A type of shaft center deviation adjustment device for a wheel body, which includes: · a wheel body, which has a penetrating strip-shaped slide in the center of the wheel body · · racks, which are provided on the left and right sides of the inner edge of the aforementioned chute Two; and symmetrically arranged, a rack with full teeth, and a rack with half teeth; a slide seat, which can be moved up and down in a long slide groove of the wheel body, and the upper part of the slide seat has a gear groove, The gear groove is provided with a pivot hole, and the lower part of the slide seat is provided with a bushing hole; a gear is provided in the gear groove of the slide seat, and the two sides of the gear are respectively meshed with the left and right racks, and the front and rear of the gear The pivot shaft penetrates into the pivot holes of the front and rear slides respectively, and a positioning spring is arranged in series on the periphery of the front pivot; a knob is fixed to the end of the front shaft of the gear; a bush is inserted into the front and rear slides The shaft bushing hole is fixed and combined ', and the hollow shaft bushing of the bushing can be fixed and combined after the wheel axle of the vehicle body is penetrated; according to this, through the pull of the knob, the gear and the two racks are generated. Double-sided ringing or single-sided meshing action; when the single-sided meshing is performed, only the knob is turned. When the wheel rotates, the slide seat and the bushing fixed at the lower end of the slide seat will be displaced at the same time, so that the axis of the wheel shaft is located at the center of the wheel body or an eccentric position; when the two sides are engaged, the gear is restrained and the slide seat and the The bushing is positioned so that the axis is no longer moving. 2 · The axial offset adjustment device of the wheel body according to item 1 in the scope of the patent application, wherein the slide seat is composed of two front and rear slide seats, and the periphery of the two slide seats has a protruding pressure plate to lose pressure on the wheel body. Front and rear wall surfaces of the chute. 3 · Adjustment of the axial deviation of the wheel body as described in item 1 of the scope of patent application Page 17 1240046 6. Scope of patent application Device, in which the two sides of the gear groove of the slide seat are provided with gaps, so that both sides of the gear can mesh with the left and right racks. 4 · The axial offset adjustment device of the wheel body according to item 1 of the scope of patent application, wherein the front wall ring of the gear is provided with a recessed spring groove, and the gear groove of the front slide seat is provided with a positioning groove. The slot can be introduced at both ends of the positioning spring located on the periphery of the front pivot. 5 · As described in Item 1 of the scope of the patent application, the axial offset adjustment device of the wheel body 'wherein the half-toothed rack refers to one side of the rack is a half-tooth, the other side is a flat step, and the width of the half-tooth Equal to one-half of the full tooth width. 6 · The axial offset adjustment device of the wheel body as described in item 1 of the scope of patent application, wherein the perforation in the center of the knob is matched with the bolt hole in the front pivot axis of the gear and then screwed in to fix it; The eccentric positioning hole on the side can be inserted and fixed by the eccentric positioning rod on the side of the bolt hole of the front pivot. Page 18