JP2009227162A - Saddle and bicycle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a saddle freely adaptable to the conditions of a rider, and provide a bicycle equipped therewith. <P>SOLUTION: The saddle 10 comprises a seat part 11A and auxiliary seat parts 11B. The seat part 11A has a narrow portion 110 wide at the rear end and gradually narrower frontward. The auxiliary seat parts 11B are arranged adjacent to both sides of the narrow portion 110 of the seat part 11A. It can be folded downward (to the reverse side of the seat part 11A) by a folding mechanism 13. The auxiliary seat parts 11B, when developed, are arranged flush with the seat part 11A to form a seat surface 12 with its front face wider together with the seat part 11A. On the other hand, when the auxiliary seat parts 11B are folded, the seat part 11A forms a seat surface 12B with its front face narrower. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a bicycle saddle and a bicycle including the same.

  Bicycles have a frame that is a skeleton, contact parts such as saddles, handles, and pedals, and a drive part that converts human power transmitted through these contact parts into propulsive power for sports and leisure applications. Various improvements have been made accordingly. For example, since the saddle supports most of the body weight, it is desired to have a shape and a material that are less likely to get tired even when traveling for a long time and are easy to step on the pedal.

  Here, FIGS. 18A and 18B show a schematic configuration of a general saddle 100. The saddle 100 includes a seat portion 101 supported by a support column 102, and the support column 102 is connected to a frame (not shown). The seating portion 101 has a narrow portion 101a that becomes narrower toward the front, and a saddle portion is placed from the center to the rear end, and the front narrow portion 101a is sandwiched between the crotch and the pedal is depressed. It becomes possible to travel in a balanced and stable posture.

However, in the saddle 100 as described above, the tip portion 101b of the narrow portion 101a has a sharp shape. For example, when riding a bicycle with clothes that tightly wrap around both thighs such as a tight skirt. There is a risk that the tip 101b is difficult to fabric and the clothes may be torn by friction. Therefore, for example, Patent Document 1 proposes a technique in which the above-described sharp tip portion is eliminated from the seating portion.
JP 2003-170873 A

  However, in terms of the stability of the posture at the time of sitting, the tip portion 101b as shown in FIGS. 18A and 18B is sharpened so that it can be firmly sandwiched between the left and right thighs. It is desirable to have a simple structure. That is, it is desired to realize a saddle that can be freely adapted to the situation of the rider, such as clothes to be worn.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a saddle that can be freely adapted to the situation of the rider and a bicycle including the saddle.

  The first saddle according to the present invention has a seat portion that has a shape that gradually narrows toward the front, and a seat portion that is arranged so as to be foldable downward adjacent to both sides of the narrow portion of the seat portion and is unfolded. In addition, the front portion includes an auxiliary seat portion that forms a wide seating surface.

  The second saddle according to the present invention has a seat portion having a wide portion at the front portion and a shape gradually narrowing toward the front, and is disposed and deployed so as to be foldable downward adjacent to the front side of the seat portion. And an auxiliary seating part that forms a seating surface together with the seating part.

  The third saddle according to the present invention is attached to the first seat portion having a narrow portion gradually narrowing toward the front and the rear portion of the first seat portion so as to be openable and closable. And a second seating part that covers the entire surface of the part and forms a wide seating surface at the front part.

  A bicycle according to the present invention includes the first to third saddles of the present invention.

  In the first saddle of the present invention, when the auxiliary seating portions arranged adjacent to both sides of the seating portion are deployed, a seating surface having a wide front portion is formed by the seating portion and the auxiliary seating portion. Accordingly, even when the rider travels wearing a garment that tightly wraps around both thighs such as a tight skirt, the cloth of the garment is not torn. On the other hand, when the auxiliary seating portion is folded downward, a seating surface is formed by the seating portion having a shape that gradually narrows toward the front. As a result, the rider can be seated so that the narrow portion in front of the seating surface is sandwiched between the crotch.

  In the second saddle of the present invention, when the auxiliary seating portion disposed adjacent to the front side of the seating portion is folded downward, the seating portion forms a seat surface having a wide front portion. Accordingly, even when the rider travels wearing a garment that tightly wraps around both thighs such as a tight skirt, the cloth of the garment is not torn. On the other hand, when the auxiliary seating portion is developed, a seating surface that gradually narrows toward the front is formed by the auxiliary seating portion and the seating portion. As a result, the rider can be seated so that the narrow portion in front of the seating surface is sandwiched between the crotch.

  In the third saddle of the present invention, when the second seating portion is closed, the entire surface of the first seating portion having a narrow portion gradually narrowing toward the front is covered with the second seating portion, and the front portion is covered. A wide seating surface appears. Accordingly, even when the rider travels wearing a garment that tightly wraps around both thighs such as a tight skirt, the cloth of the garment is not torn. On the other hand, when the second seating portion is opened rearward, a first seating portion having a shape gradually narrowing toward the front appears. As a result, the rider can be seated so that the narrow portion in front of the seating surface is sandwiched between the crotch.

  According to the first saddle of the present invention, the seat portion having a shape that gradually narrows toward the front and the narrow portion of the seat portion is disposed adjacent to both sides of the narrow portion so as to be foldable downward, and in a deployed state. Along with the seating part, the front part is provided with an auxiliary seating part that forms a wide seating surface, so that it is used in a deployed state when wearing, for example, a tight skirt, while preventing damage to the fabric, for example slacks and pants It is possible to maintain a stable posture by using it when folded. Therefore, it is possible to respond freely according to the situation such as the clothes of the rider.

  According to the second saddle of the present invention, the seat portion having a wide portion at the front portion, and a shape gradually narrowing toward the front, are disposed adjacent to the front side of the seat portion and can be folded downward, Since it is provided with an auxiliary seating portion that forms a seating surface together with the seating portion in the unfolded state, for example, it is used without folding when wearing a tight skirt or the like, while preventing damage to the fabric, for example, slacks or pants A stable posture can be maintained by folding and using when wearing. Therefore, it is possible to respond freely according to the situation such as the clothes of the rider.

  According to the third saddle of the present invention, the first seating portion having the narrow portion gradually narrowing toward the front and the rear portion of the first seating portion are attached to be openable and closable, and the first seating in the closed state is provided. Since the second seating portion that covers the entire surface of the seating portion and the front portion forms a wide seating surface is provided, for example, a tight skirt or the like is used without being folded to prevent the fabric from being damaged. On the other hand, a stable posture can be maintained by folding and using, for example, slacks and pants. Therefore, it is possible to respond freely according to the situation such as the clothes of the rider.

  According to the bicycle of the present invention, since the first to third saddles of the present invention are provided, it is possible to run in a more stable state depending on the situation of the clothes of the rider.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[First Embodiment]
FIGS. 1A and 1B are views of the saddle 10 according to the first embodiment as viewed obliquely from above. The saddle 10 is, for example, a bicycle saddle, and is provided with auxiliary seating portions 11B adjacent to both front sides of a seating portion 11A on which a rider's buttocks are mainly placed. The seating portion 11A is supported by the support column 14, and is used by being connected to a frame portion of a bicycle (not shown).

  The seating portion 11A is wide at the rear end portion, and has a narrow portion 110 that gradually narrows toward the front portion. The seating portion 11A is, for example, a base that is covered with an epithelium through a cushioning material, and an elastic member such as a spring and a saddle rail for fixing a column (none of which are shown) are provided on the back surface. It has been.

  The auxiliary seating portion 11B is disposed adjacent to both sides of the narrow portion 110 of the seating portion 11A, and can be folded downward (back side of the seating portion 11A) by the folding mechanism 13.

  As shown in FIG. 1A, the auxiliary seating portion 11B is disposed in the same plane as the seating portion 11A when deployed, thereby forming one seating surface 12A together with the seating portion 11A. The planar shape of the seating surface 12A is, for example, a rounded rectangular shape. On the other hand, when the auxiliary seating portion 11B is folded downward, a seating surface 12B is formed as shown in FIG. That is, the seating surface 12A is formed of a seating portion 11A and an auxiliary seating portion 11B, and its front portion is wide. The seating surface 12B is formed from the seating part 11A, and becomes narrow toward the front.

  Here, the folding mechanism 13 will be described with reference to FIGS. FIG. 2 (A) shows the surface configuration of the auxiliary seating portion 11B, and FIG. 2 (B) shows the planar configuration of the back surface of the auxiliary seating portion 11B. 3 (A) and 3 (B) are views of the saddle 10 as viewed obliquely from the upper front.

  The auxiliary seating part 11B is adjacent to the seating part 11A along the axis AA as shown in FIG. 2 (A), and is connected to the seating part 11A by a hinge 130 on the back side as shown in FIG. 2 (B). ing. A guide groove 131 is provided in an arc shape on the back surface of the auxiliary seating portion 11B. A support stay 133 (to be described later) slides along the guide groove 131, so that the auxiliary seating portion 11B can rotate to the back side around the axis AA, that is, be folded downward. Lock mechanisms 132A and 132B are provided at both ends of the guide groove 131 for fixing the position of a support stay 133 described later.

  One end of the support stay 133 is rotatably attached to the side surface of the support column 14, and the other end is slid along the guide groove 131. The other end of the support stay 133 can be fixed at both end positions of the guide groove 131 by the lock mechanisms 132A and 132B. As a result, for example, as shown in FIG. 3A, the support stay 133 is fixed to the outer end of the guide groove 131 by the lock mechanism 132B, so that the auxiliary seating portion 11B is arranged on the same plane as the seating portion 11A. Thus, the seating surface 12A can be formed. On the other hand, as shown in FIG. 3B, by fixing the support stay 133 to the inner end of the guide groove 131 by the lock mechanism 132A, the auxiliary seating portion 11B is folded downward to form the seat surface 12B. Can do.

  Such a saddle 10 can be suitably used for the bicycle 1 as shown in FIG. 4, for example. The bicycle 1 is a city cycle that is used for practical purposes such as commuting, attending school, shopping, etc. and for sightseeing purposes such as cycling. The bicycle 1 includes a frame 2 that is a skeleton, a contact portion that includes a saddle 10, a handle 3, and a pedal 4, and a drive portion 5 that converts human power from the contact portion into propulsive force. The saddle 10 is connected to the frame 2 via a support column 14, and the saddle height can be adjusted, for example. In such a configuration, when the rider sits on the saddle 10 and grasps the handle 3 and steps on the pedal 4 with the left and right feet, the force is transmitted to the drive portion 5 and can be propelled by rotating the front and rear wheels. .

  As described above, in the present embodiment, in the saddle 10, the auxiliary seating portion 11B is disposed adjacent to both sides of the narrow portion 110 of the seating portion 11A so as to form the same surface as the seating portion 11A when deployed. Thus, the auxiliary seating portion 11B forms a seat surface 12A having a wide front portion together with the seating portion 11A.

  Here, in a general saddle 100 having a sharp tip portion 101b that narrows toward the front as shown in FIGS. 18A and 18B, the rider is placed on both thighs such as a tight skirt. When wearing a garment that wraps tightly, the tip portion 101b may be difficult to fabricate, and an excessive force may be applied locally to break the fabric.

  On the other hand, in the present embodiment, since the front portion of the seating surface 12A is wide, the rider is wearing clothes that wrap around the thighs as described above, for example. However, the fabric of the skirt does not bite into the front portion of the saddle 10, and the fabric can be prevented from being damaged.

  On the other hand, when the auxiliary seating portion 11B is folded downward by the folding mechanism 13, a seating surface 12B composed of the seating portion 11A is formed. Since this seat surface 12B has a narrow portion 110 that becomes narrower toward the shape of the seating portion 11A, that is, toward the front surface, it wears clothes that allow the rider to freely move both thighs such as pants. In this case, as in the case of the general saddle 100, a stable posture can be maintained by sitting with the narrow portion 110 sandwiched between both thighs. Therefore, the shape of the seating surface can be switched according to clothes and the like.

  Next, a modification of the first embodiment will be described. In the following, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

(Modification 1)
FIGS. 5A to 5C are views for explaining a saddle folding mechanism according to Modification 1 of the first embodiment. However, also in the present modification, as in the first embodiment, the auxiliary seating portion 11B is disposed adjacent to both sides of the seating portion 11A during deployment to form a seating surface 12A having a wide front surface together with the seating portion 11A. The seating part 11A forms the seating surface 12B when folded.

  The seating portion 11 </ b> A has a latch portion 234 that is biased and held in a predetermined angular direction by a coil spring 232. The auxiliary seating part 11B has a support member 230 provided integrally with the auxiliary seating part 11B, for example, and the support member 230 is provided with a rotating shaft 231 extending along the boundary with the seating part 11A. Yes. The auxiliary seating portion 11B rotates around the rotation shaft 231 and can be folded downward. The latching part 234 of the seating part 11A and the support member 230 of the auxiliary seating part 11B are provided with engaging claws 233a and 233b that engage with each other during deployment. It should be noted that a fixing means 235b such as a magnet or Velcro (registered trademark) that can be fixed to the support column 14 is provided at the outer end of the auxiliary seating portion 11B so that the auxiliary seating portion 11B does not hang downward when folded. Is provided.

  In such a configuration, as shown in FIG. 5B, when the auxiliary seating portion 11B is rotated upward and deployed, and the seating portion 11A and the auxiliary seating portion 11B are arranged on the same plane, the seating portion 11A. The engaging claw 233a provided in the latch portion 234 engages with the engaging claw 233b provided in the support member 230 of the auxiliary seating portion 11B. Thereby, when the force F1 by seating is applied toward the lower side of the auxiliary seating portion 11B, the force acts upward on the engaging claw 233b on the side of the auxiliary seating portion 11B, and the shape of the seating surface 12A is maintained. .

  On the other hand, as shown in FIG. 5C, when the latch part 234 is pushed inward with the force F2, the engagement between the engaging claws 233a and 233b is released, and the auxiliary seating part 11B rotates downward. Then, it is folded (FIG. 5A). As described above, even when the folding mechanism having the above-described configuration is used, the same effects as those of the first embodiment can be obtained.

(Modification 2)
6A and 6B are views for explaining a saddle folding mechanism according to Modification 2 of the first embodiment. In this modification, a rod-like support stay 135 is rotatably attached to one end of the auxiliary seating portion 11B on the back surface and the other end to the support column 14. The support stay 135 is configured to be stretchable and has a lock mechanism (not shown) for preventing expansion and contraction in the most extended state and the most contracted state.

  As shown in FIG. 6A, in the state where the support stay 135 is extended most, the auxiliary seating portion 11B is developed and arranged in the same plane as the seating portion 11A to form the seating surface 12A. On the other hand, as shown in FIG. 6B, the auxiliary seating portion 11B is folded downward in a state where the support stay 135 is most contracted to form the seat surface 12B. As described above, even when the extendable support stay 135 is used as the folding mechanism, the same effects as those of the first embodiment can be obtained.

(Modification 3)
FIGS. 7A and 7B are views for explaining a saddle sliding mechanism according to Modification 3 of the first embodiment. In this modification, the seating portion 11A and the auxiliary seating portion 11B can slide in the front-rear direction.

  On the back side of the seating portion 11A, an outer cylinder 17 extending in the front-rear direction is provided integrally with the seating portion 11A. The support column 15 for supporting the seating portion 11A has a bent shape so that the end portion on the seating portion 11A side extends in the front-rear direction. Thus, the outer cylinder 17 slides in the front-rear direction, with the bent end of the support column 15 as the inner cylinder 15a.

  As shown in FIG. 7A, the outer cylinder 17 is fixed to a predetermined position D1 behind the lock mechanism 171b when the auxiliary seating portion 11B is deployed. On the other hand, as shown in FIG. 7B, when the auxiliary seating portion 11B is folded, the lock mechanism 171a is fixed at a position D2 ahead of the position D1 by a distance d.

  Here, in the case shown in FIG. 7 (A), the rider wears a garment that tightly wraps around both thighs, such as a tight skirt, for example, so that the rider's buttocks are mainly located in the front region. Located in S1. On the other hand, in the case shown in FIG. 7 (B), the rider wears slacks, pants, etc., and sits with the narrow part 110 of the seating part 11A sandwiched between both thighs. It is mainly arranged in the rear area S2. For this reason, the position where the rider's buttocks are arranged differs depending on the situation of the rider's clothes, that is, the shape of the seating surfaces 12A and 12B. Therefore, as in this modification example, by enabling sliding in the front-rear direction according to the shape of the seating surfaces 12A and 12B, the rider can easily sit on the seating surface, and can maintain a more stable posture. It becomes easier to step on the pedal.

(Modification 4)
FIG. 8 shows a planar shape of the saddle according to the fourth modification of the first embodiment. In the present modification, the configuration is the same as that of the saddle 10 of the first embodiment except for the planar shapes of the seating portion 16A and the auxiliary seating portion 16B. However, as in the first embodiment, when the auxiliary seating portion 16B is unfolded, the auxiliary seating portion 16B is disposed adjacent to both sides of the narrow portion 160 of the seating portion 16A and has a wide front surface together with the seating portion 16A. 12A is formed. Further, when the auxiliary seating portion 16B is folded downward, the seating portion 16A forms the seat surface 12B.

  The seating portion 16A has a T-shaped planar shape as a whole, that is, a planar shape with a wide rear portion and a narrow front portion. The planar shape of the auxiliary seating portion 16B is a rectangular shape with rounded corners. In this manner, the seating portion 16A may have a planar shape that narrows stepwise toward the front. The auxiliary seating portion 16B may be folded with the axis aa extending in the front-rear direction as the central axis, or may be folded with the axis bb extending in the left-right direction as the central axis.

(Modification 5)
FIG. 9 shows a planar shape of the saddle according to the fifth modification of the first embodiment. In the present modification, the configuration is the same as that of the saddle 10 of the first embodiment except for the planar shapes of the seating portion 17A and the auxiliary seating portion 17B. However, as in the first embodiment, the auxiliary seating portion 17B is disposed adjacent to both sides of the narrow portion 170 of the seating portion 17A to form a seating surface 18A having a wide front surface together with the seating portion 17A. ing. Further, when the auxiliary seating portion 17B is folded downward, the seating portion 17A forms a seating surface 18B.

  The planar shape of the seating portion 17A has a substantially triangular shape with a rounded apex portion, and has a narrow portion 170 at the front portion. The auxiliary seating portion 17B is disposed adjacent to the two front sides of the seating portion 17A and has an arcuate planar shape. The planar shape of the seating surface 18A formed by the seating portion 17A and the auxiliary seating portion 17B is circular. Thus, the planar shape of the seating surface 18A is not limited to the rounded rectangular shape as described above, but may be a circular shape. Or you may make it become an ellipse (not shown).

[Second Embodiment]
FIGS. 10A and 10B show a schematic configuration of the saddle 20 according to the second embodiment. FIG. 11A illustrates a planar configuration viewed from the front surface of the saddle 20, and FIG. 11B illustrates a planar configuration viewed from the back surface of the saddle 20. FIG. The saddle 20 is, for example, a bicycle saddle, and is provided with an auxiliary seating portion 21B adjacent to a front portion of a seating portion 21A on which a rider's buttocks are mainly placed. The seating portion 21A is supported by the column 14, and is connected to a bicycle frame (not shown).

  The seating portion 21A has a wide portion 210A on the front surface, and the auxiliary seating portion 21B has a narrow portion 210B that becomes narrower toward the front surface. The auxiliary seating portion 21B can be folded downward (on the back side of the seating portion 21A) by the folding mechanism 22.

  As shown in FIG. 10A, the auxiliary seating portion 21B forms a single seating surface 24A together with the seating portion 21A when deployed in the same plane as the seating portion 11A. The planar shape of the seating surface 24A is a shape that is wide at the rear and narrower toward the front. On the other hand, when the auxiliary seating portion 21B is folded downward, the seating portion 21A forms a seating surface 24B as shown in FIG. That is, the seating surface 24A is formed by the seating portion 21A and the auxiliary seating portion 21B, and has a narrow portion 210B at the front portion thereof. The seating surface 24B is formed from the seating portion 21A, and has a wide portion 210A at the front portion thereof.

  As shown in FIG. 11A, the auxiliary seating portion 21B is adjacent to the seating portion 21A along the axis BB, and as shown in FIG. It is connected. A guide groove 221 is provided on the back surface of the auxiliary seating portion 21B so as to extend in a direction orthogonal to the axis BB. A support stay 223 (to be described later) slides along the guide groove 221 so that the auxiliary seating portion 21B can rotate around the axis BB toward the back side, that is, be folded downward. Lock mechanisms 222A and 222B for fixing the position of a support stay 223, which will be described later, are provided at both ends of the guide groove 221.

  One end of the support stay 223 rotates on the side surface of the column 14 and is movable in the vertical direction. The other end of the support stay 223 slides along the guide groove 221. The other end of the support stay 223 is fixed at both end positions of the guide groove 221 by lock mechanisms 222A and 222B. Accordingly, for example, as shown in FIG. 12A, the support seat 223 is fixed to the outer end portion of the guide groove 221 by the lock mechanism 222B, whereby the auxiliary seat portion 21B is developed to form the seat surface 24A. be able to. On the other hand, as shown in FIG. 12B, one end of the support stay 223 is moved downward along the support column 14 while the other end is slid to the inner end of the guide groove 221 and fixed by the lock mechanism 222A. By doing so, the auxiliary seating part 21B can be folded and the seating surface 24B can be formed. Note that one end of the support stay 223 on the column 14 side is fixed in a vertical position when the auxiliary seating portion 21B is expanded and folded by a lock mechanism (not shown).

  As described above, in the present embodiment, when the auxiliary seating portion 21B is folded in the saddle 20, the seating portion 21A (seat surface 24B) has the wide portion 210A on the front surface. Even when wearing clothes that tightly wrap around both thighs, the front part of the saddle can be prevented from being damaged by the fabric, and damage to the fabric can be prevented. On the other hand, the auxiliary seating portion 21B has a narrowed portion 210B that gradually narrows toward the front surface, and this auxiliary seating portion 21B forms a seating surface 24A together with the seating portion 21A, so that the rider can, for example, wear both slacks and pants. When wearing a garment capable of freely moving the thigh, the user can sit down so that the narrow portion 210B is sandwiched between both thighs. Therefore, the shape of the seating surface can be switched according to the situation of the rider's clothes and the like.

  Next, a modification of the second embodiment will be described. In addition, the same code | symbol is attached | subjected about the component similar to the said 2nd Embodiment, and description is abbreviate | omitted suitably.

(Modification 6)
FIGS. 13A and 13B are views for explaining a saddle folding mechanism according to Modification 6 of the second embodiment. In this modification, the support stay 224 is rotatably attached to one end of the support seat 224 on the back surface of the auxiliary seating portion 21 </ b> B and the other end to the column 14. The support stay 224 is configured to be stretchable and has a lock mechanism (not shown) for preventing expansion and contraction in the most extended state and the most contracted state.

  As shown in FIG. 13A, in the state where the support stay 224 is extended to the maximum, the auxiliary seating portion 21B is developed and arranged in the same plane as the seating portion 21A, thereby forming the seating surface 24A. On the other hand, as shown in FIG. 13B, the auxiliary seating portion 21B is folded downward in a state where the support stay 224 is most contracted to form a seating surface 24B. As described above, even when the extendable support stay 224 is used as the folding mechanism, the same effect as that of the second embodiment can be obtained.

  In addition, also in the saddle 20 of the second embodiment, the auxiliary seating portion 21B may be folded by the folding mechanism as described in the first modification of the first embodiment (FIG. 5). .

[Third Embodiment]
FIGS. 14A and 14B are views of the saddle 30 according to the third embodiment as viewed obliquely from above. 15A and 15B are views of the saddle 30 as viewed from the side. The saddle 30 is, for example, a bicycle saddle. The saddle 30 is a first seat 31A on which a rider's buttocks are mainly placed. The saddle 30 is attached so as to be openable and closable so as to cover the entire surface of the first seat 31A. And 2 seating portions 31B.

  The first seat portion 31A has a narrow portion 310 that is wide at the rear and narrows toward the front surface. Like the seat portion 11A of the first embodiment, the first seat portion 31A has a base as a base. It is covered with epithelium via a cushion material, and a spring and saddle rail are provided on the back surface.

  The second seat portion 31B is made of a material having rigidity with respect to a predetermined load, and the planar shape is, for example, a rounded rectangular shape. The second seat portion 31B can store the first seat portion 31A inside, and is held rotatably about the shaft 321 of the holding member 32, for example. The holding member 32 is attached to the support column 14 and is provided so as to protrude upward at the rear end of the first seat portion 31A. This overhanging portion is a backrest 322.

  The backrest 322 of the holding member 32 is provided with lock mechanisms 322A and 322B for fixing the position of the second seat portion 31B in the open state and the closed state. The lock mechanism 322A is provided above the backrest 322, and fixes the position of the second seat portion 31B in the open state (FIG. 15B). The lock mechanism 322B is provided below the backrest 322, and fixes the closed position of the second seat portion 31B (FIG. 15A).

  As described above, in the present embodiment, in the saddle 30, when the second seating portion 31B is closed and attached so as to cover the front surface of the first seating portion 31A, the second seating portion 31B takes the seating surface 38A. Form. At this time, since the front surface of the second seating portion 31B is wide, the front surface of the saddle can be used even when the rider wears clothing that tightly wraps around both thighs such as a tight skirt. The fabric of the skirt is not caught on the fabric, and the fabric can be prevented from being damaged. On the other hand, when the second seating portion 31B is in the open state, the first seating portion 31A forms the seating surface 38B, and the rider wears clothes capable of freely moving both thighs such as trousers. Can sit with the narrow part 310 sandwiched between both thighs. Therefore, the shape of the seating surface can be switched according to the situation of the rider's clothes and the like.

  In the present embodiment, the configuration in which the holding member 32 is attached to the support column 14 has been described as an example. However, the holding member 32 may be attached to a saddle rail or the like on the back side of the first seat portion 31A. . Moreover, the planar shape of the second seat portion 31B is not limited to a rounded rectangular shape, and may be a circular shape or an elliptical shape.

  Next, a modification of the third embodiment will be described. In the following, the same components as those in the third embodiment are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

(Modification 7)
16A and 16B are views for explaining a saddle sliding mechanism according to Modification 7 of the third embodiment. In this modification, the first seat portion 31A and the second seat portion 31B can slide in the front-rear direction.

  An outer cylinder 343 extending in the front-rear direction is provided integrally with the first seat portion 31A on the back side of the first seat portion 31A. The support column 35 for supporting the first seating portion 31A has a bent shape so that its end portion extends in the front-rear direction. As a result, the outer cylinder 343 slides in the front-rear direction with the bent end portion of the support column 35 as the inner cylinder 35a.

  As shown in FIG. 16A, the outer cylinder 343 is fixed at a predetermined rear position D1 when the second seat portion 31B forms the seat surface 38A. On the other hand, as shown in FIG. 16B, when the first seat portion 31A forms the seat surface 38B, the first seat portion 31A is fixed at a position D2 ahead of the position D1 by a distance d.

  Here, in the case shown in FIG. 16 (A), the rider sits wearing a garment that tightly wraps around both thighs, such as a tight skirt, for example. Located in S1. On the other hand, in the case shown in FIG. 16 (B), the rider wears trousers or the like and sits with the narrow part 110 of the seating part 11A sandwiched between both thighs. Arranged in the rear region S2. For this reason, the position where the rider's buttocks are arranged varies depending on the situation of the rider's clothes and the like, that is, the shape of the seating surfaces 38A and 38B. Therefore, as in this modified example, by enabling sliding in the front-rear direction according to the shape of the seating surfaces 38A and 38B, the rider can easily sit on the seating surface and maintain a more stable posture. It becomes easier to step on the pedal.

(Modification 8)
FIGS. 17A and 17B are views of a saddle according to Modification 8 of the third embodiment as viewed from the side. In the present modification, the second seat portion 37B is configured with a predetermined thickness by a material having cushioning properties, for example, a low repulsion material. Thus, since the 2nd seat part 37B has cushioning properties, the burden on a buttocks and a waist | hip | lumbar part is eased and comfortable driving | running | working is attained. Further, when the first seating portion 37A (seat surface 38B) is used, the second seating portion 37B having cushioning functions as a backrest.

  While the present invention has been described with reference to the embodiment, the present invention is not limited to the above embodiment, and various modifications can be made. For example, in the above-described embodiment, a city cycle is described as an example of a bicycle provided with the saddle of the present invention, but the present invention is not limited to this and can be applied to a folding bicycle or a power-assisted bicycle. is there.

  Moreover, in the said 1st and 2nd embodiment, the auxiliary | assistant seat part provided adjacent to the seat part is expanded so that it may be arrange | positioned in the same plane as a seat part, or it folds below. The configuration for switching the shape of the seating surface is described as an example, but the shape of the seating surface may be switched by another method. For example, a mechanism may be added that allows the auxiliary seating portion to be housed on the back side of the seating portion by sliding the auxiliary seating portion downward and then moving in the inner direction of the seating portion.

It is a perspective view showing the schematic structure of the saddle which concerns on the 1st Embodiment of this invention. It is a top view showing the schematic structure of the saddle shown in FIG. It is a figure for demonstrating the folding mechanism of the saddle shown in FIG. It is a figure showing the schematic structure of the bicycle which concerns on one application example of the saddle shown in FIG. It is a figure for demonstrating the other folding mechanism of the saddle shown in FIG. It is a figure for demonstrating the other folding mechanism of the saddle shown in FIG. It is a figure for demonstrating the sliding mechanism of the saddle shown in FIG. It is a figure for demonstrating the other planar shape of the saddle shown in FIG. It is a figure for demonstrating the other planar shape of the saddle shown in FIG. It is a perspective view showing schematic structure of the saddle which concerns on the 2nd Embodiment of this invention. It is a top view showing schematic structure of the saddle shown in FIG. It is a figure for demonstrating the folding mechanism of the saddle shown in FIG. It is a figure for demonstrating the other folding mechanism of the saddle shown in FIG. It is a perspective view showing schematic structure of the saddle which concerns on the 3rd Embodiment of this invention. It is a side view showing the schematic structure of the saddle shown in FIG. It is a figure for demonstrating the sliding mechanism of the saddle shown in FIG. FIG. 15 is a side view illustrating another configuration of the saddle illustrated in FIG. 14. It is a figure showing schematic structure of the saddle which concerns on the comparative example of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Bicycle, 2 ... Frame, 3 ... Handle, 4 ... Pedal, 5 ... Drive part, 10, 20, 30 ... Saddle, 11A, 16A, 17A, 21A ... Seating part, 31A, 37A ... 1st seating part, 11B , 16B, 17B, 21B ... auxiliary seating part, 31B, 37B ... second seating part, 32 ... holding member, 12A, 12B, 18A, 18B, 24A, 24B, 38A, 38B ... seating surface, folding mechanism ... 13, 22 , 14, 15, 35 ... struts.

Claims (11)

A seating portion having a narrow portion gradually narrowing toward the front;
And an auxiliary seating part which is arranged adjacent to both sides of the narrow part of the seating part so as to be foldable downward, and in the deployed state, the front part together with the seating part forms a wide seating surface. And saddle. The saddle according to claim 1, wherein a planar shape of a seating surface formed by the seating portion and the auxiliary seating portion is a rounded rectangle, an ellipse, or a circle. The saddle according to claim 1, wherein the seating portion is adapted to move along the front-rear direction. A locking claw provided on the auxiliary seating portion;
2. A latch portion provided on the seating portion, which engages with the locking claw when the auxiliary seating portion is deployed, and holds the auxiliary seating portion in a deployed state. The saddle described in One end portion is attached to a support column that supports the seating portion, and the other end portion is attached to a back surface of the auxiliary seating portion, and includes a support stay that holds the auxiliary seating portion in an unfolded state. The saddle according to claim 1. The saddle according to claim 5, wherein the support stay is configured to be extendable and attached to the support column so as to be rotatable about the one end. The support stay is pivotally attached to the column with the one end as a base point,
The saddle according to claim 5, wherein a guide groove for guiding the sliding of the other end portion of the support stay is formed on a back surface of the auxiliary seating portion. A seat with a wide portion at the front,
An auxiliary seating portion that has a shape that gradually narrows toward the front, is disposed adjacent to the front side of the seating portion so as to be foldable downward, and forms a seating surface together with the seating portion when deployed. Saddle characterized by that. A first seating portion having a narrow portion that gradually narrows toward the front;
A second seating part that is openably and closably attached to the rear part of the first seating part and that covers the entire surface of the first seating part in the closed state, and the front part forms a wide seating surface. Saddle characterized by. The saddle according to claim 9, wherein the first and second seats are configured to move in the front-rear direction. A bicycle comprising the saddle according to any one of claims 1 to 10.

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