TWI418481B - Seat post - Google Patents

Description

Seatpost

This case relates to the connection between the saddle frame and the seat post, and in particular to a seatpost.

The general use of the seatpost is that one end is mounted on the bicycle frame and the other end is mounted on the seat cushion to assist the seat cushion on the bicycle. And usually the seatpost is made into a round tube and the seat cushion angle is adjusted by rotation.

In addition, there is also a design in which the seat post is made into a non-circular tube, such as a triangular tube. Through the corners of the triangle tube, the wind resistance during riding can be reduced. However, in this design, the seat post cannot be rotated and the angle of the seat cushion cannot be adjusted.

The case provides a seatpost that allows the seat cushion to rotate relative to the bicycle frame.

Therefore, one aspect of the seatpost has a main pole which is not shaped like a round rod and is used to connect the bicycle frame. The seatpost also has a connector for attaching the seat cushion. The seat post further has a first pivoting member and a second pivoting member, and the first pivoting member is pivotally connected to the main lever and the connecting member, and the second pivoting member is also pivotally connected to the main lever and the connecting member. The pivot axis of the first pivoting member and the pivoting axis of the second pivoting member are not parallel.

Another aspect of the seatpost has a main pole that is not shaped as a round rod and is used to connect the bicycle frame. The seatpost also has a connector for attaching the seat cushion. The seat post further has a pitch rotating member and a tilting rotating member, and the tilting rotating member connects the main rod and the connecting member, and the tilting rotating member also connects the main rod and the connecting member. The pitching rotor provides freedom of rotation of the connector relative to the main lever, and the biasing rotor provides freedom of rotation of the connector relative to the main lever.

A further aspect of the seatpost has a main pole that is not shaped as a round rod and is used to connect the bicycle frame. The seatpost also has a connector for attaching the seat cushion. The seat post further has a pitch rotation device and a tilt rotation device, and the pitch rotation device is configured to enable the connecting member to rotate relative to the main lever, and the tilting rotation device is configured to enable the connecting member to be pivoted relative to the main rod.

Thereby, the seat cushion can be rotated by the seatpost relative to the bicycle frame, and the seatpost can provide two different directions of rotation of the seat cushion.

1 and 2, FIG. 1 is an exploded view of a seatpost according to an embodiment of the present invention, and FIG. 2 is a combined view of the seatpost of FIG. 1.

In this embodiment, the seat post has a main rod 100, the main rod 100 is not in the shape of a round rod, and the main rod 100 is used to connect the bicycle frame a. The seat post also has a connecting member 200 for connecting the seat cushion b. The seat post further has a first pivoting member 300 and a second pivoting member 400. The first pivoting member 300 is pivotally connected to the main pole 100 and the connecting member 200. The second pivoting member 400 is also pivotally connected to the main pole 100 and connected. Piece 200. And the pivot axis of the first pivoting member 300 and the pivot axis of the second pivoting member 400 are not parallel.

In other words, this embodiment utilizes the first pivoting member 300 and the second pivoting member 400 such that the connecting member 200 can be pitched and tilted relative to the main lever 100.

In other words, the first pivoting member 300 and the second pivoting member 400 can be regarded as a pitching rotating member and a biasing rotating member, respectively, which respectively connect the connecting member 200 and the main rod 100, so that the connecting member 200 and the connecting member 200 are respectively The main pole 100 has a pitching degree of freedom and a degree of freedom of deflection.

The aforementioned pivotal connection means that the two objects are connected to each other and can be rotated with a pivot axis as a center of rotation. The aforementioned connection refers to at least one of two objects in a structure, function, actuation or relative relationship, forming a community. The aforementioned pivot axis refers to the axis of the two objects as the center of rotation. The aforementioned pitching degree of freedom refers to the degree of freedom between two objects, which enables the two objects to rotate relative to the pitch. The aforementioned degree of freedom of deflection refers to the degree of freedom between two objects, which enables the two objects to be relatively tilted and rotated. The aforementioned pitch rotation refers to a relative rotation between the two objects centering on a horizontal axis forward or backward. The aforementioned tilting rotation means that the two objects are rotated relative to each other with a vertical axis centered on the left or right.

When the seat cushion b is rotated relative to the bicycle frame a, two different directions of rotation can be generated by the seatpost to adjust the angle of the seat cushion b.

For the rotational dynamics of the connecting member 200 with respect to the main rod 100, please refer to FIGS. 3 to 6. FIG. 3 is a side view of the first pivoting member 300 of FIG. 2 before the pitching rotation, and FIG. 4 is a third figure. A side view of the first pivoting member 300 after the pitching rotation, FIG. 5 is a plan view of the second pivoting member 400 of FIG. 2 before the yaw rotation, and FIG. 6 is a second pivoting member 400 of FIG. Top view after tilting rotation.

Please refer to Figure 1. The first pivoting member 300 can have a convex curved surface 310. The convex curved surface 310 of the first pivoting member 300 abuts the main rod 100, and the pivot axis of the first pivoting member 300 is horizontal. The second pivoting member 400 is a cylinder, and one end is disposed on the first pivoting member 300, and the other end is inserted into the connecting member 200. The pivoting shaft of the second pivoting member 400 is perpendicular. Thereby, the first pivoting member 300 and the second pivoting member 400 can connect the main rod 100 and the connecting member 200.

The aforementioned abutment means that the two objects abut each other and are connected.

Please refer to Figure 1. The main rod 100 has a concave curved surface 130 that abuts against the convex arc surface 310 of the first pivoting member 300. On the other hand, the connector 200 has a recess 230 to which the recess 230 is coupled.

Thereby, the first pivoting member 300 and the second pivoting member 400 can connect the main rod 100 and the connecting member 200, so that the connecting member 200 can be pitched and tilted relative to the main rod 100.

Referring to Figures 1, 5, and 6, the seat post further has a stop portion 800 and a limit portion 900. The stopping portion 800 is disposed on the first pivoting member 300, the limiting portion 900 is disposed on the connecting member 200, and the blocking portion 800 is opposite to the limiting portion 900. The stopping portion 800 and the limiting portion 900 are used to abut each other, thereby limiting the angle at which the connecting member 200 is tilted relative to the main lever 100.

Refer to Figure 1. The main rod 100 has an insertion end 110, and the bicycle frame a has an insertion hole a1. The insertion end 110 of the main lever 100 is inserted into the insertion hole a1 of the bicycle frame a to connect the main lever 100 to the bicycle frame a.

In addition, the connecting member 200 has a first connecting member 210 and a second connecting member 220, and the first connecting member 210 and the second connecting member 220 are oppositely clamped to the seat cushion b to connect the connecting member 200 with the seat cushion b.

The first connecting member 210 has two through holes 211, and the main rod 100 has two positioning holes 120. The two connecting rods 700 are inserted into the two positioning holes 120 of the main rod 100 through the two through holes 211 of the first connecting member 210, respectively. The main rod 100 is coupled to the connector 200.

Moreover, the cross-sectional area of the through hole 211 is larger than the cross-sectional area of the connecting rod 700, so that when the connecting member 200 rotates relative to the main rod 100, a space for the relative displacement of the connecting rod 700 and the through hole 211 can be provided.

The first connecting member 210 further has two receiving slots 212, and the two through holes 211 are respectively penetrated through the bottom of the two receiving slots 212, and the two receiving slots 212 respectively receive a limiting member 213. Each of the limiting members 213 has a through hole 214. The two connecting rods 700 are respectively inserted into the through holes 214 of the two limiting members 213, and the limiting member 213 is used to restrict the connecting rod 700 so that one end of the connecting rod 700 is restricted from passing through the through hole. 214. When one end of the connecting rod 700 is inserted into the positioning hole 120 of the main rod 100, the other end of the connecting rod 700 is restricted by the restricting member 213, and the restricting member 213 is further accommodated in the receiving groove 212, thereby connecting the main rod 100 and the connecting member 200.

The volume of the limiting member 213 is smaller than the volume of the receiving slot 212. When the connecting rod 700 and the through hole 211 are relatively displaced, the connecting rod 700 can drive the limiting member 213 to be displaced in the receiving slot 212. Fig. 7 is a plan view of the restricting member 213 of Fig. 2 before displacement, and Fig. 8 is a plan view of the restricting member 213 of Fig. 7 after displacement.

In addition, please refer to FIGS. 9 and 10, and FIG. 9 is an exploded view of the seatpost according to another embodiment of the present invention, and FIG. 10 is a combined view of the seatpost of FIG.

In this embodiment, the first pivoting member 300 can have a convex arc surface 310, the convex arc surface 310 of the first pivoting member 300 abuts the main rod 100, and the pivot axis of the first pivoting member 300 is horizontal. The second pivoting member 400 is a cylinder, and one end is disposed on the connecting member 200, and the other end is inserted into the first pivoting member 300. The pivoting axis of the second pivoting member 400 is vertical. Thereby, the first pivoting member 300 and the second pivoting member 400 can connect the main rod 100 and the connecting member 200.

Please refer to Figure 9. The main rod 100 has a concave curved surface 130 that abuts against the convex arc surface 310 of the first pivoting member 300. On the other hand, the first pivoting member 300 has a recess 320 that is coupled to the second pivoting member 400.

Thereby, the first pivoting member 300 and the second pivoting member 400 can connect the main rod 100 and the connecting member 200, so that the connecting member 200 can be pitched and tilted relative to the main rod 100.

Referring to FIG. 9 , the connector 200 has a first connecting member 210 and a second connecting member 220 . And the second connecting member 220 receives the seat cushion b from below, and the first connecting member 210 is separated from the second connecting member 220 by the upper restricting seat cushion b, so that the connecting member 200 is connected with the seat cushion b.

Referring to Figures 9, 11, and 12, Figure 11 is a plan view of the second connector 220 of Figure 10 before rotation, and Figure 12 is a plan view of the second connector 220 of Figure 11 after rotation. One end of the second pivoting member 400 is connected to the second connecting member 220. When the second connecting member 220 rotates relative to the main rod 100, the seat cushion b can be rotated simultaneously.

Referring to FIG. 9 , the first connecting member 210 has two through holes 211 , the main rod 100 has two positioning holes 120 , and the two connecting rods 700 respectively pass through the two through holes 211 of the first connecting member 210 to insert the main rod 100 . The two positioning holes 120 connect the main rod 100 with the connecting member 200.

The first connecting member 210 further has two receiving slots 212, and the two through holes 211 are respectively penetrated through the bottom of the two receiving slots 212, and the two receiving slots 212 respectively receive a limiting member 213. Each of the limiting members 213 has a through hole 214. The two connecting rods 700 are respectively inserted into the through holes 214 of the two limiting members 213, and the limiting member 213 is used to restrict the connecting rod 700 so that one end of the connecting rod 700 is restricted from passing through the through hole. 214. When one end of the connecting rod 700 is inserted into the positioning hole 120 of the main rod 100, the other end of the connecting rod 700 is restricted by the restricting member 213, and the restricting member 213 is further accommodated in the receiving groove 212, thereby connecting the main rod 100 and the connecting member 200.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present case. Anyone skilled in the art can make various changes and refinements without departing from the spirit and scope of the case. Therefore, the scope of protection of this case is considered. The scope defined in the patent application is subject to change.

100. . . Main pole

110. . . Insertion end

120. . . Positioning hole

130. . . Concave curved surface

200. . . Connector

210. . . First connector

211. . . perforation

212. . . Crate

213. . . Restriction

214. . . Through hole

220. . . Second connector

230. . . Groove

300. . . First pivoting member

310. . . Convex camber

320. . . Groove

400. . . Second pivoting member

700. . . Connecting rod

800. . . Stop

900. . . Limiting department

a. . . Bicycle frame

A1. . . Insertion hole

b. . . cushion

Fig. 1 is an exploded view of a seatpost according to an embodiment of the present invention.

Fig. 2 is a combination view of the seatpost of Fig. 1.

Fig. 3 is a side view of the first pivoting member of Fig. 2 before the pitching rotation.

Figure 4 is a side elevational view of the first pivoting member of Figure 3 after pitching rotation.

Fig. 5 is a plan view of the second pivoting member of Fig. 2 before the yaw rotation.

Figure 6 is a plan view of the second pivoting member of Figure 5 after being tilted and rotated.

Fig. 7 is a plan view of the restricting member of Fig. 2 before displacement.

Figure 8 is a plan view of the restriction member of Figure 7 after displacement.

Figure 9 is an exploded view of the seatpost of another embodiment of the present invention.

Figure 10 is a combination of the seatposts of Figure 9.

Figure 11 is a plan view of the second connector of Figure 10 before rotation.

Figure 12 is a plan view of the second connector of Figure 11 after rotation.

100. . . Main pole

110. . . Insertion end

120. . . Positioning hole

130. . . Concave curved surface

200. . . Connector

210. . . First connector

211. . . perforation

212. . . Crate

213. . . Restriction

214. . . Through hole

220. . . Second connector

230. . . Groove

300. . . First pivoting member

310. . . Convex camber

400. . . Second pivoting member

700. . . Connecting rod

800. . . Stop

900. . . Limiting department

a. . . Bicycle frame

A1. . . Insertion hole

Claims (20)

a seat post comprising: a main rod in the form of a non-round rod for connecting a bicycle frame; a connecting member for connecting a seat cushion; a first pivoting member pivotally connecting the connecting member and the main rod; And a second pivoting member pivotally connecting the connecting member and the main rod, wherein a pivot axis of the first pivoting member is not parallel to a pivot axis of the second pivoting member. The seatpost according to claim 1, wherein the first pivoting member has a convex curved surface, the convex curved surface abuts the main pole, the second pivoting member is a cylinder, and one end is disposed at the first On the pivoting member, the other end is inserted into the connecting member. The seatpost according to claim 1, wherein the first pivoting member has a convex curved surface, the convex curved surface abuts the main pole, the second pivoting member is a cylindrical body, and one end is disposed at the connecting member The other end is inserted into the first pivoting member. The seat post according to claim 1 further includes a stopping portion and a limiting portion, the blocking portion is opposite to the limiting portion for limiting an angle at which the connecting member is pivoted relative to the main lever. The seat post according to claim 1, wherein the connecting member comprises: a through hole disposed on the connecting member; and a connecting rod passing through the through hole to connect the main rod and the connecting member. The seat post according to claim 5, wherein the cross-sectional area of the through hole is larger than the cross-sectional area of the connecting rod for providing relative displacement of the connecting rod and the through hole. The seatpost of claim 5, wherein the connecting member comprises a receiving slot and a limiting member, the through hole penetrating the bottom of the receiving slot, the limiting member is received in the receiving slot, and the connecting rod passes through one end and passes through The limiter. The seatpost of claim 7, wherein the volume of the restraining member received in the pocket is smaller than the volume of the pocket for providing displacement of the restricting member in the recess. A seat post comprising: a main rod in the form of a non-round rod for connecting a bicycle frame; a connecting member for connecting a seat cushion; and a pitch rotating member connecting the connecting member and the main rod for providing The connecting member has a pitching degree of freedom; and a biasing rotating member connecting the connecting member and the main rod for providing a degree of freedom of the connecting member. The seat post according to claim 9, wherein the pitch rotating member has a convex arc surface that abuts the main rod, the tilting rotating member is a cylinder, and one end is disposed on the pitch rotating member. The other end is inserted into the connector. The seat post according to claim 9, wherein the pitch rotating member has a convex arc surface that abuts the main rod, the tilting rotating member is a cylinder, and one end is disposed on the connecting member, and the other One end of the pitch rotating member is inserted. The seatpost of claim 9, further comprising a stopping portion and a limiting portion, the blocking portion being opposite to the limiting portion for limiting an angle at which the connecting member is pivoted relative to the main lever. The seatpost according to claim 9, wherein the connecting member comprises: a through hole disposed on the connecting member; and a connecting rod passing through the through hole to connect the main rod and the connecting member. The seatpost according to claim 13, wherein the cross-sectional area of the through hole is larger than a cross-sectional area of the connecting rod for providing relative displacement of the connecting rod and the through hole. The seat post according to claim 13, wherein the connecting member comprises a receiving slot and a limiting member, the through hole is inserted through the bottom of the receiving slot, the limiting member is received in the receiving slot, and the connecting rod passes through one end and passes through The limiter. The seatpost of claim 15, wherein the volume of the restraining member received in the pocket is smaller than the volume of the pocket to provide displacement of the restricting member in the recess. A seat post comprising: a main rod in the form of a non-round rod for connecting a bicycle frame; a connecting member for connecting a seat cushion; and a pitch rotation device for enabling the connecting member to be opposite to the main rod a pitching rotation; and a biasing rotation device for enabling the connector to be tilted relative to the main lever. The seatpost of claim 17, further comprising a stopping portion and a limiting portion, the blocking portion being opposite to the limiting portion for limiting an angle at which the connecting member is pivoted relative to the main lever. The seat post according to claim 17, wherein the connecting member comprises: a through hole disposed on the connecting member; and a connecting rod passing through the through hole to connect the main rod and the connecting member. The seatpost of claim 19, wherein the connecting member comprises a receiving slot and a limiting member, the through hole penetrating the bottom of the receiving slot, the limiting member is received in the receiving slot, and the connecting rod passes through one end and passes through The limiter.