TWI527725B - Adjustable width of the bike seat cushion - Google Patents

Description

Adjustable width bicycle seat cushion

The present invention relates to bicycle seat cushions, and more particularly to a bicycle seat cushion that can adjust the width of the seating portion to accommodate different riding conditions.

In general, bicycle seat cushions currently on the market can be distinguished into two types according to the speed of riding, and one type is a racing bicycle for fast riding. The seat cushion has a narrow width of the seat portion, and the other is a leisure bicycle for slow riding. The bicycle seat cushion has a wide width of the seat portion. Although the two bicycles are not identical in structure, the rider sometimes uses the same bicycle for both of the above situations. Since the width of the conventional bicycle seat cushion is fixed, it cannot meet the needs of the rider and the vehicle. Moreover, the conventional bicycle seat cushion of which the width is fixed cannot meet the needs of all riders, for example, a rider with a large buttock, and a bicycle seat cushion having a wider seat may be more suitable.

In order to solve the aforementioned problems, U.S. Patent No. 4,877,286 provides a bicycle seat cushion having a pair of pivoting ride platforms and a mechanism for adjusting the separation angle of each of the platforms to adjust The width of the seating area of the seat cushion, although the seat cushion solves the problem of the single width of the conventional seat cushion, the design is very troublesome in adjusting the width and can only be adjusted in a number of widths.

Based on the foregoing, a bicycle seat cushion that is adjustable in width and that can ameliorate the disadvantages of the prior art is still needed, and the present invention is provided to provide such a need. The invention will be apparent to those skilled in the art from this disclosure.

The main object of the present invention is to provide a bicycle seat cushion in which the width of the seating portion is adjustable.

Another object of the present invention is to provide a bicycle seat cushion that allows the user to adjust the width of the seat cushion seating position very easily and labor-savingly.

It is still another object of the present invention to provide a bicycle seat cushion that can adjust the width of the seating portion of the seat cushion infinitely between the maximum and minimum widths.

To achieve the foregoing objectives, the adjustable width bicycle seat cushion of the present invention includes at least one substrate, a left and right bearing plate, and a width adjusting mechanism. The substrate has an elongated portion, a wide portion, and a central axis X that divides the substrate into two portions that are bilaterally symmetrical. The left bearing piece has a left piece and a left pivoting ring. The shape of the right bearing piece is the same as that of the left bearing piece, but also has a right piece and a right pivoting ring. The seat is pivotally connected to the right pivoting ring by a Y-axis as a rotating shaft, and is disposed on a top surface of the wide portion of the substrate. The width adjusting mechanism comprises a shuttle block, a pair of guiding columns and an adjusting member. The shuttle block is disposed between each of the bearing pieces and the wide portion of the substrate, and is reciprocally displaceable along the axis X of the substrate within a predetermined distance. In addition, the shuttle block further has a pair of centers about the central axis X. Symmetrically arranged oblique guiding holes. Each of the guiding columns is respectively fixed to each of the bearing pieces and can extend into each of the guiding holes of the shuttle block. The adjusting member is rotatably fixed on the substrate and connected to the shuttle block. When the adjusting member rotates, the shuttle block can be driven to perform linear reciprocating displacement.

Another feature of the adjustable width bicycle seat cushion of the present invention is that an alcove having a longitudinal direction parallel to the central axis X is provided on the top surface of the wide portion of the base plate for receiving the shuttle block. The hollow chamber is provided with a strip-shaped hole having a long axis parallel to the central axis X, and the shuttle block is cooperatively provided with a rib column which can be embedded in the strip-shaped hole and has a small length for the shuttle block to receive the rib. The manner in which the strip holes are restrained is reciprocally displaced along the central axis X.

A further feature of the bicycle seat cushion of the adjustable width of the present invention is the width adjustment The adjustment member of the mechanism has a knob and a threaded shaft. The adjusting member is rotatably fixed to the bottom surface of the wide portion of the substrate, and the shaft is screwed to the rib of the shuttle block, whereby when the knob of the adjusting member is rotated, the shuttle block will be along The central axis X is reciprocally displaced to adjust the width between the respective bearing pieces.

Another feature of the bicycle seat cushion of the adjustable width is that each of the bottom surfaces of the bearing sheets is provided with a guiding strip extending in a curved direction in the width direction, and the wide portion of the substrate is provided with a pair of The curved guiding grooves of the guiding strips are used for accommodating the guiding strips, so that the bearing sheets can smoothly adjust the width between the two.

10‧‧‧ Bicycle Seat

12‧‧‧Substrate

14,16‧‧‧left and right sittings

18‧‧‧Width adjustment mechanism

20‧‧‧Elastic mat

22‧‧‧Straits

24‧‧‧ Wide Department

26‧‧‧ left piece

28‧‧‧Left pivot ring

30‧‧‧right piece

32‧‧‧Right pivot ring

282,322‧‧‧Complementary area

33‧‧‧上盖

35‧‧‧Bolts

332‧‧‧Medium hole

284‧‧‧Axis hole

324‧‧‧Axis hole

122‧‧‧ screw holes

34‧‧ ‧ shuttle block

36‧‧‧Adjustment

38,40‧‧‧ pairs of guide columns

46‧‧‧ bottom cover

242‧‧ ‧ alcove

244‧‧‧ strip holes

342‧‧‧ ribs

344,346‧‧‧ Guide hole

362‧‧‧ knob

364‧‧‧Threaded shaft

348‧‧‧ screw holes

48‧‧‧Seat

482‧‧‧Long slot

366‧‧‧ Guide ring

484‧‧ ‧ alcove

46‧‧‧ bottom cover

50‧‧‧ bolt

142,162‧‧‧Guide bars

245,247‧‧‧ guiding slot

246,248‧‧‧Limited holes

42,44‧‧‧Limited Column

202‧‧‧ Front pad

204‧‧‧Left pad

206‧‧‧right pad

The following is a further embodiment of the bicycle seat cushion of the adjustable width of the present invention, and the first embodiment is a perspective view of an embodiment of the bicycle seat cushion of the adjustable width of the present invention; An exploded perspective view of the embodiment shown in the figure from top to bottom; the third figure is an exploded perspective view of the embodiment shown in the first figure from bottom to top; and the fourth figure is an example of the embodiment shown in the first figure. Figure 4-4 is a cross-sectional view; and the fifth figure is a combination of a part of the structure shown in the first embodiment and a cross-sectional perspective view; the sixth figure is a partial decomposition of the embodiment shown in the first figure from the bottom up. 7 is a cross-sectional view of the embodiment shown in the first embodiment along the direction of the first FIG. 7-7, wherein each of the bearing pieces is in a close state; and the eighth figure is the first embodiment shown in the first figure. A cross-sectional view in the direction of Figures 7-7, wherein each of the bearing sheets is in a maximum open state.

Referring to the drawings, a preferred embodiment of the bicycle seat cushion of the adjustable width of the present invention is shown in FIG. The bicycle seat cushion 10 has a base plate 12, a left and right bearing plates 14, 16, a width adjusting mechanism 18, and an elastic pad 20.

The substrate 12 has an elongated portion 22, a wide portion 24, and a central axis X that divides the substrate 12 into two portions that are bilaterally symmetrical.

The left bearing piece 14 has a left piece 26 and a left pivot ring 28; the right bearing piece 16 has the same shape but is symmetrical to the left bearing piece 14, and also has a right piece 30 and a right pivot ring 32. Each of the bearing pieces 14, 16 is pivotally connected by their left and right pivoting rings 28, 32 and disposed on the top surface of the wide portion 24 of the substrate 12. In one embodiment of the present invention, the left pivot ring 28 and the right pivot ring 32 are each provided with a complementary region 282, 322 for forming a plane on top of the two when the two are pivoted together. In addition, the thickness of the left pivot ring 28 and the right pivot ring 32 are smaller than that of the left body 26 and the right body 30, respectively, for accommodating an upper cover 33. When assembled, a bolt 35 is inserted through the hole 332 of the upper cover 33, and the shaft hole 284 of the left pivot ring 28 and the shaft hole 324 of the right pivot ring 32 and the screw hole 122 of the base plate 12 are used to form the bearing piece 14, The bolt 35 can be pivotally opened and closed to the top surface of the wide portion 24 of the substrate 12. In other words, the lateral width of the seating portion of the seat cushion 12 is thereby designed to be adjustable inwardly or outwardly relative to the central axis X.

The angle adjustment mechanism 18 has a shuttle block 34, an adjustment member 36, a pair of guide posts 38, 40, and a bottom cover 46.

The shuttle block 34 is disposed between the bearing plates 14, 16 and the wide portion 24 of the substrate 12 and is reciprocally displaceable along the axis X of the substrate 12 at a predetermined distance. More specifically, the top surface of the wide portion 24 of the substrate 12 is provided. An alcove 242 having a longitudinal direction parallel to the central axis X, a bar-shaped hole 244 whose axis is located on the central axis X, and a rib 342 on the bottom side of the shuttle block 34. When combined, the rib 342 is movably embedded in the strip-shaped hole Within 244. The shuttle block 34 is additionally provided with two symmetrically arranged guiding holes 344, 346, one end of each guiding hole 344, 346 is close to the central axis X and the other end is away from the central axis X, thus The body of the hole extends obliquely. The guiding columns 38, 40 are symmetrically fixed to the respective bearing pieces 14, 16 respectively, and the column body is inserted into the guiding holes 344, 346, thereby, when the shuttle block 34 is linearly displaced, The seats 14, 16 will abut or separate each other as a pivoting action, as shown in the seventh figure when the two are closed, as shown in the eighth figure when they are separated.

The adjusting member 36 has a knob 362 and a threaded shaft 364. When combined, the adjusting member 36 is rotatably fixed to the bottom surface of the wide portion 24 of the substrate 12, and the shaft 364 is screwed to the rib 342 of the shuttle block 34. Within the threaded bore 348, thereby, when the adjustment member 36 is rotated by the knob 362, the shuttle block 34 will reciprocally displace within the strip aperture 244 along the central axis X. In other words, the user can adjust the width of the seat portion of the seat cushion 10 by simply rotating the adjusting member 36. Moreover, this is a continuous width mode, and the user can adjust the width according to his preference.

In the preferred embodiment of the present invention, as shown in the third embodiment, a protrusion 48 is disposed on the bottom surface of the wide portion 24 of the substrate 12. The bottom surface of the protrusion 48 is provided with a long slot 482 for receiving the adjustment member 36. The shaft 364. In addition, a guide ring 366 is disposed at the front end of the shaft 364 of the adjusting member 36, and a corresponding recess 484 is disposed on the long slot 482 of the protruding seat 48 for receiving the guide ring 366, so that the adjusting member 36 can be rotated. It is smoother. The bottom cover 46 is fixed to the bottom surface of the wide portion 24 of the substrate 12 by means of a bolt 50 so as to cover the shaft 364 and the boss 48 of the cover adjusting member 36.

Moreover, in another embodiment of the present invention, the bottom surfaces of the bearing pieces 14, 16 are each provided with a guiding strip 142, 162 extending in a curved shape in the width direction, and the wide portion 24 of the substrate 12 is provided with a pair and each The guide strips 142, 162 have complementary curved guiding grooves 245, 247 for receiving the guiding strips 142, 162 when combined. Thereby, the bearing pieces 14, 16 can be smoothly pivoted. In addition, in the preferred embodiment of the present invention, a limiting hole 246, 248 having a predetermined width may be respectively disposed at an inner end of the guiding groove 245, 247, and the bearing pieces 14, 16 are provided with corresponding limits. The stop holes 42, 44 of the bit holes 246, 248, thereby limiting the width of the bearing sheets 14, 16 open. Furthermore, in order to prevent the gap between the bearing sheets 14, 16 and the top surface of the wide portion 24 of the substrate 12 when opened, In the preferred embodiment of the invention, the opposing portions of the top surface of the wide portion 24 and the bottom surfaces of the bearing sheets 14, 16 are planar.

The elastic pad 20 is made of an elastic material such as a plastic foam or a gel, and has a pad portion 202 corresponding to the elongated portion 22 of the substrate 12, corresponding to one of the bearing pads 14, 16 and a left pad portion 204 and one. Right pad portion 206. The front pad portion 202 is disposed on the top surface of the elongated portion 22 of the substrate 12, the left pad portion 204 is disposed on the top surface of the bearing plate 14, and the right pad portion 206 is disposed on the top surface of the bearing plate 16, and the elastic pad 20 functions to The rider is more comfortable on the ride.

10‧‧‧ Bicycle Seat

12‧‧‧Substrate

14,16‧‧‧left and right sittings

18‧‧‧Width adjustment mechanism

20‧‧‧Elastic mat

22‧‧‧Straits

24‧‧‧ Wide Department

26‧‧‧ left piece

28‧‧‧Left pivot ring

30‧‧‧right piece

32‧‧‧Right pivot ring

282,322‧‧‧Complementary area

33‧‧‧上盖

35‧‧‧Bolts

332‧‧‧Medium hole

284‧‧‧Axis hole

324‧‧‧Axis hole

122‧‧‧ screw holes

34‧‧ ‧ shuttle block

36‧‧‧Adjustment

38,40‧‧‧ pairs of guide columns

46‧‧‧ bottom cover

242‧‧ ‧ alcove

244‧‧‧ strip holes

342‧‧‧ ribs

344,346‧‧‧ Guide hole

362‧‧‧ knob

364‧‧‧Threaded shaft

348‧‧‧ screw holes

366‧‧‧ Guide ring

484‧‧ ‧ alcove

50‧‧‧ bolt

245,247‧‧‧ guiding slot

246,248‧‧‧Limited holes

42,44‧‧‧Limited Column

202‧‧‧ Front pad

204‧‧‧Left pad

206‧‧‧right pad

Claims (15)

A bicycle seat cushion comprises: a base plate having a narrow portion, a wide portion, and a central axis X for dividing the base plate into two parts symmetrical; a left bearing piece having a left piece and a a left pivoting ring; a right bearing piece having the same shape but symmetrical shape as the left bearing piece, and having a right piece and a right pivoting ring; the left and right bearing pieces are supported by the left pivoting ring The right pivoting ring is pivotally connected with a Y-axis as a rotating shaft, and is disposed on a top surface of the wide portion of the substrate; and a width adjusting mechanism includes: a shuttle block disposed at each of the seats Between the sheet and the wide portion of the substrate, and reciprocally displaceable along a central axis X of the substrate, the shuttle block having a pair of oblique guiding holes arranged symmetrically about the central axis X; a pair of guiding a column fixed to each of the bearing pieces and extending into each of the guiding holes of the shuttle block; and an adjusting member rotatably fixed to the substrate and connected to the bobbin block When the adjusting member rotates, the shuttle block can be driven to perform linear reciprocating displacement. The bicycle seat cushion according to claim 1, wherein the top surface of the wide portion of the substrate is provided with an alcove having a longitudinal direction parallel to the central axis X for receiving the shuttle block. The bicycle seat cushion according to claim 2, wherein the hollow chamber has a strip-shaped hole having a long axis parallel to the central axis X, and the shuttle block has a rib column having a length smaller than the strip-shaped hole for inserting into the strip-shaped hole. And the shuttle block is reciprocally displaced along the central axis X in a manner constrained by the strip-shaped holes. The bicycle seat cushion according to claim 3, wherein the adjusting member has a knob and a threaded shaft, the adjusting member is rotatably fixed to a bottom surface of the wide portion of the substrate, and the shaft is screwed to the shuttle block On the rib, when the knob of the adjusting member is rotated, the shuttle block will reciprocate along the central axis X shift. The bicycle seat cushion according to claim 4, wherein a bottom surface of the wide portion of the substrate is provided with a protrusion, and a bottom surface of the protrusion is provided with a long groove for receiving the shaft of the adjusting member. The bicycle seat cushion according to claim 5, wherein the shaft of the adjusting member is provided with a guide ring, and the corresponding long groove of the protrusion is provided with a corresponding arcuate recess for receiving the guide ring. The bicycle seat cushion according to claim 6, further comprising a bottom cover fixed to the bottom surface of the substrate by covering the adjusting member shaft and the protruding portion. The bicycle seat cushion according to claim 1, wherein one end of each of the guiding holes of the shuttle block is close to the central axis X, and the other end is away from the central axis X for extending the hole body obliquely. The bicycle seat cushion according to claim 1, wherein each of the pivot rings of the left and right bearing pieces is respectively provided with a complementary area for forming a plane on the top of the two when the two are pivoted together. The bicycle seat cushion according to claim 9, wherein the thickness of each of the left and right bearing sleeves is smaller than the thickness of each of the left and right bearing sheets, respectively, for arranging an upper cover. The bicycle seat cushion of claim 10, further comprising a fixing bolt, the bolt is extending through the upper cover, the axis of each of the pivoting rings and a screw hole of the substrate, so that the bearing pieces can be The bolt pivots open and close. The bicycle seat cushion according to claim 1, wherein the bottom surface of each of the bearing pieces is provided with a guiding strip extending in a curved direction in a width direction, and the wide portion of the substrate is provided with a pair and each guiding A complementary curved guide groove for receiving each of the guide strips. The bicycle seat cushion of claim 12, wherein each of the guiding slots is respectively provided with a limiting hole having a predetermined width, and each of the bearing pieces is respectively provided with a limiting post corresponding to each limiting hole. Embed in each of the limit holes. The bicycle seat cushion according to claim 1, wherein a top surface of the wide portion of the substrate and a contact portion of each of the bottom surfaces of the bearing plate are planar. The bicycle seat cushion of claim 1, further comprising a resilient pad having a front pad portion, a left pad portion and a right pad portion, the front pad portion being disposed at a top of the substrate elongated portion The left pad portion is disposed on a top surface of the left bearing piece, and the right pad portion is disposed on a top surface of the right bearing piece.