Background
The skateboard is a bearing tool for a user to stand and achieve speed and mobility by single foot propulsion or high and low fall, and the skateboard can achieve the effect of changing the sliding track by utilizing the inclination and swing of the body of the user in use; thus, in addition to exercise, users are often used as a short-distance walk aid. At the same time, the use of technical fancy movements as show shows or competitions is also developed.
In order to increase the steering capability of the skateboard, a link-type steering wheel mechanism has been proposed, for example, U.S. Pat. No. US8186694, which is a conventional link-type steering wheel mechanism, although the requirement of assisting the steering of the skateboard can be met, the overall structure is too complex and bulky, and the assembly and subsequent maintenance are not facilitated.
Please refer to taiwan bulletin No. M303755, which is a scull type steering wheel structure, although it can overcome the defects of the conventional link mechanism such as complexity and bulkiness, there still exist several defects:
the oar-rocking type steering wheel structure can generate deflection margin, and the oscillation is achieved by compressing the buffer block, but the space for compressing the buffer block is limited, so that the oscillation amplitude of the wheel body is too small.
The structure of the stick with the scull type steering wheel structure can be seen from the specification, the top and bottom ends are tied, so that the axial moving space can not be provided, and the deflection angle of the stick is limited.
Drawings
Fig. 1 is a schematic view of an embodiment of the present invention.
Fig. 2 is a schematic view of another perspective of the embodiment shown in fig. 1.
FIG. 3 is a cross-sectional view of the embodiment A-A shown in FIG. 1.
Fig. 4 is an exploded view of the embodiment of fig. 1.
FIG. 5 is a partially exploded view of the embodiment of FIG. 4.
Fig. 6 is a schematic cross-sectional view of the embodiment of fig. 5.
FIG. 7 is a schematic diagram of the operation of a part of the components according to the embodiment of the present invention.
FIG. 8 is a cross-sectional view of the embodiment of FIG. 5 taken along line B-B.
10, a lock frame, 12, a locking plate part, 14, an extending part, 20, a connecting rod group, 21, a first connecting rod, 22, a second connecting rod, 23, a third connecting rod, 24, a fourth connecting rod, 30 a scull group, 31, a scull perforating hole, 32, a connecting rod perforating hole, 33, an upper limiting groove, 34, a lower limiting groove, 35, an elastic body, 36, a washer, 37, a game rod, 372, a thread section, 374, a rod head, 38, a game rod nut, 39, a game rod shaft sleeve, 40, a center rod group, 41, a lock frame pivot hole, 42, a connecting rod locking hole, 43, a center rod, 44, a center rod sleeve, 50, a wheel group, 52, a wheel shaft, 522, a wheel shaft thread, 54, a wheel, 56 and a wheel shaft nut.
Detailed Description
The embodiment of the present invention, which integrates the scull and the multi-link skateboard steering wheel mechanism, will be further described with reference to the attached drawings. In order to facilitate understanding of the embodiments of the present invention, the same reference numerals are used to designate the same parts hereinafter.
Referring to fig. 1 to 6, a skateboard steering wheel mechanism integrating a scull and multiple connecting rods for locking a pedal 94 to provide sliding and steering includes a lock frame 10, a connecting rod set 20, a scull set 30, a center rod set 40, and a plurality of wheel sets 50.
The lock frame 10, as shown in fig. 1 to 6, has a lock piece portion 12 and an extending portion 14 integrally formed; wherein the extension portion 14 extends downward from the lock blade portion 12 toward the lower end surface. In practice, the lock portion 12 is parallel to the pedal 94.
The linkage assembly 20, as shown in fig. 1 to 4, includes a first link 21, a second link 22, a third link 23, and a fourth link 24. The first and second links 21, 22 are parallel to each other, and the first link 21 is located at the front of the second link (as viewed from the left side to the right side of fig. 1), and two ends of the first link are respectively pivoted with the third and fourth links 23, 24, so as to form a linkage four-link structure.
The scull assembly 30, as shown in fig. 2, 3, 5 and 6, includes a scull through hole 31, a connecting rod through hole 32, an upper limit groove 33, a lower limit groove 34, a plurality of elastic bodies 35, a plurality of washers 36, a game rod 37, a game rod nut 38 and a game rod shaft sleeve 39.
The scull penetration hole 31 is formed through the extension portion 14 of the lock frame 10.
The link penetration hole 32 is formed through the second link 22.
The upper and lower limiting grooves 33, 34 (as shown in fig. 3) and the concentric link through hole 32 are formed in the top and bottom end surfaces of the second link 22 in a recessed manner.
The elastic body 35 and the washer 36 are superposed corresponding to the upper limiting groove and the lower limiting groove 33 and 34; the elastic bodies 35 are in contact with the bottoms of the upper and lower limiting grooves 33 and 34, respectively.
The lever 37 is passed through the scull penetration hole 31, the link penetration hole 32, the elastic bodies 35, and the washers 36 in this order and then screwed with the lever nut 38. The joystick 37 has a threaded section 372 at one end that matches the joystick nut 38 and a head 374 at the other end that is contoured to a larger diameter than the threaded section 372. In practice, the club head 374 is in a non-cylindrical (tubular) shape, and matches with the contour of the non-circular hole in the inner diameter of the scull through hole 31 to avoid spinning, so that the effect of screwing and locking the game club nut 38 can be achieved by a single tool, and the corresponding washer 36 is pressed to force the spring 35 in the upper and lower limit grooves 33, 34 to be compressed. In addition; the joystick 37 and the linkage 20 may be selectively tilted relative to each other at an angle (e.g., 10 to 50 degrees) to increase the overall length of the joystick 37 to facilitate tilting of the pedals 94 to increase the motion of the linkage 20.
The game rod shaft sleeve 39 is sleeved between the game rod 37 and the scull perforation 31. In practice, the joystick hub 39 may optionally be omitted. The inner diameter of the oar penetration hole 31 is not the contour of a circular hole, and can be provided by a game rod shaft sleeve 39.
Referring to fig. 1, 3 and 4, the center rod assembly 40 is pivoted to the lock frame 10 and locked to the link assembly 20, and includes a lock frame pivot hole 41, a link lock hole 42, a center rod 43 and a center rod sleeve 44.
The lock frame pivot hole 41 is formed at a default position of the extension portion 14 of the lock frame 10.
The link locking hole 42 is formed at a default position of the first link 21 to be recessed to match the lock frame pivot hole 41.
The center rod 43 is pivotally connected to the lock frame pivot hole 41 and threadedly connected to the link lock hole 42. In practice, the center rod 43 extends in the same direction as the pedal 94 and is parallel to the locking plate portion 12 of the lock bracket 10.
The center rod sleeve 44 is arranged between the lock frame pivot hole 41 and the center rod 43. In practice, the center post sleeve 44 may optionally be omitted.
The wheel assembly 50, as shown in fig. 1, 2 and 5, includes an axle 52, a wheel 54, and an axle nut 56. The axle 52 has one end vertically connected to the third or fourth link 23, 24 and the other end having an axle thread 522. The wheel 54 is fitted around the outer periphery of the wheel shaft 52. The axle nut 56 is threaded onto the axle threads 522 to restrain the wheel 54. In practice, the wheels 54 are pointed or wide.
The pedal 94, as shown in fig. 1, has at least one plate through hole 942; the plate through hole 942 is formed through the step plate 94 at the top and bottom thereof and is disposed at the fore and aft ends of the extending direction of the step plate 94 to provide the extending portion 14 of the lock frame 10 to pass through. In practice, the plate through hole 942 may be optionally omitted, and the lock bracket 10 may be directly locked to the downward end surface of the pedal 94.
Therefore, the above description is a description of the components and assembly of the scull and the multi-link skateboard steering wheel mechanism according to a preferred embodiment of the present invention, and the operation characteristics of the embodiment of the present invention are described as follows.
First, referring to fig. 1 to 8, a user can step on the pedal 94 and drive the vehicle to move and accelerate, when a direction change is required, the user only needs to press the pedal 94 in a direction to be turned, the pedal 94 is forced to twist the lock rack 10 to drive the game rod 37 to deflect, the rod head 374 of the game rod 37 presses the elastic body 35 accommodated in the upper limiting groove 33, and the lower section of the game rod 37 deflects towards one side due to the contour margin of the connecting rod through hole 32 and compresses the elastic body 35 and pushes the second connecting rod 22 to displace, due to the linkage relationship of the connecting rod group 20, the third and fourth connecting rods 23 and 24 of the connecting rod group 20 are forced to displace, so that the traction wheel group 50 is forced to steer, thereby achieving the purpose of steering.
In the deflection of the lever 37, the tip end of the lever 37 is not axially constrained (in the direction in which the lever 37 extends) except for compressing the elastic bodies 35, and therefore, the tip end of the lever 37 is further inserted into the scull penetration hole 31 in the process.
When the user no longer applies pressure to the side edge of the pedal 94, the elastic bodies 35 are elastically restored to link the game rod 37 and the lock frame 10 to move in the opposite direction, and synchronously pull the linkage 20 and the wheel set 50 to return to the straight-going state.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention, and is not intended to limit the scope of the embodiments of the present invention, which is defined by the claims, and equivalents and modifications known to those skilled in the art, are within the scope of the present invention.