Structure for seat rotation, and bicycle saddle comprising same

Abstract

A structure for seat rotation is disclosed. The structure for seat rotation comprises: a fixed frame having a predetermined length in the left-right direction; and a rotating frame capable of rotating relative to the fixed frame with respect to the center of rotation, wherein the rotating frame is positioned below a reference surface traversing the center of rotation.

Description

Structure for rotation of the seat and bicycle saddle including the same

[0001] The present invention relates to a structure for the rotation of a seat, and more particularly, to a structure for the rotation of a seat that rotates up and down according to the movement of the hips of a bicycle rider and can stably support the hips of the rider by being in close contact with them, and a bicycle saddle including the same.

[0002] The seat of a bicycle saddle is usually provided with a narrow front area to make it easy for the rider to pedal, and a relatively wide rear area to support the load of the buttocks.

[0003] When a rider steps on the pedal while sitting on the seat, it puts pressure on the prostate and scrotum in men and on the perineum in women, and causes pain due to friction between the seat and the buttocks or thighs.

[0004] For this reason, seat structures capable of rotating up and down in response to the rider's hip movements when pedaling have been developed. These seat structures typically rotate up and down, similar to a seesaw, a children's plaything.

[0005] However, the aforementioned seat structure weakens the reaction force supporting the rider's buttocks as the seat lowers as the rider pedals, preventing the rider's power from being properly transmitted to the pedals. This results in significant fatigue for the rider and a decrease in driving speed due to the inability to properly transmit power to the pedals.

[0006] Accordingly, there is a need for the development of a bicycle saddle that supports the hips by following the movement of the hips of the rider while riding a bicycle, while increasing the power transmission to the bicycle pedals and thus increasing the speed.

[0007] The present invention provides a structure for rotating a seat that can rotate according to the movement of the hips of a bicycle rider, and a bicycle saddle including the same.

[0008] In addition, the present invention provides a structure for rotating a seat that can reduce pain in the lower back and hips while the seat rotates smoothly, and a bicycle saddle including the same.

[0009] In addition, the present invention provides a bicycle saddle that can increase power transmission to the pedals when a rider turns the pedals.

[0010] A structure for rotating a sheet according to the present invention may include a fixed frame; and a rotating frame disposed left and right on the upper side of the fixed frame and capable of relative cloud rotation with respect to the fixed frame.

[0011] A structure for rotating a sheet according to the present invention may include a fixed frame; and a rotating frame that is arranged in the left-right direction on the upper portion of the fixed frame and is capable of relative sliding rotation with respect to the fixed frame.

[0012] Alternatively, a support may be provided so that the load is transmitted to a support contact portion located below a reference plane crossing the center of rotation of the rotating frame.

[0013] Alternatively, the above rotation frame may be placed below a reference plane crossing the rotation center of the above rotation frame.

[0014] A bicycle saddle according to the present invention comprises a rotating frame; and a fixed frame having a front region provided with a front support portion supporting a front region of the seat and a rear region supporting the rotating frame so that the rotating frame can rotate.

[0015] The above sheet can be rotated around an axis connecting the center of rotation of the above rotating frame and a support point of the above front support.

[0016] Alternatively, the front support portion may be provided with a predetermined length in the left-right direction, and the axis may include a first axis connecting the rotation center of the rotation frame and one support point of the front support portion; and a second axis connecting the rotation center of the rotation frame and the other support point of the front support portion, and the seat may be rotatable about the first axis and the second axis.

[0017] Alternatively, the front support member may be separated into multiple pieces in the left and right directions.

[0018] Alternatively, the sheet may exhibit continuous relative cloud rotation with respect to the front support member.

[0019] Alternatively, the sheet may appear to be disconnected from the relative cloud rotation with respect to the front support member.

[0020] According to the present invention, the support contact portion to which the load of the seat is transmitted is positioned lower than the reference plane formed by the center of rotation of the rotating frame, so that the rotating frame rotates gently and smoothly, thereby reducing impact from the road surface and reducing pain in the hips and lower back.

[0021] In addition, according to the present invention, since the seat rotates up and down following the movement of the passenger's buttocks while the passenger steps on the pedal, the seat can be stably pressed against the passenger's buttocks, thereby reducing friction between the seat and the buttocks.

[0022] In addition, according to the present invention, since the rider's buttocks can be stably placed on the seat while pedaling, the power transmission power of the rider's power to the bicycle pedals can be increased, thereby increasing the speed.

[0023] FIG. 1 is a rear view of a structure for rotating a sheet according to one embodiment of the present invention.

[0024] Figure 2 is a side view showing the structure of Figure 1.

[0025] Figure 3 is an exploded perspective view of a portion of the structure of Figure 1.

[0026] FIGS. 4 and 5 are drawings showing the movement of a structure for rotation of a sheet according to one embodiment of the present invention.

[0027] Figure 6 is a rear view of another example of a rotating frame.

[0028] FIG. 7 is a rear view of a structure according to another embodiment of the present invention.

[0029] FIG. 8 is a rear view of a structure according to another embodiment of the present invention.

[0030] FIG. 9 is a drawing showing the coupling relationship between a support and a receiving portion according to various embodiments of the present invention.

[0031] FIG. 10 is a front view showing a structure for rotation of a sheet according to another embodiment of the present invention.

[0032] Figure 11 is a drawing schematically showing the structure of Figure 10.

[0033] Fig. 12 is a drawing showing the movement of the structure of Fig. 11.

[0034] FIG. 13 is an exploded perspective view showing a bicycle saddle including a structure according to another embodiment of the present invention.

[0035] Figure 14 is a drawing of the bicycle saddle of Figure 13 viewed from the rear.

[0036] Fig. 15 is a side view of the bicycle saddle of Fig. 13.

[0037] Figures 16 to 18 are drawings for explaining the movement of the sheet according to the load applied to the upper portion of the sheet of Figure 13.

[0038] Fig. 19 is a drawing showing another embodiment of the seat and front support.

[0039] Fig. 20 is a drawing showing another embodiment of the seat and front support.

[0040] Fig. 21 is a drawing showing another embodiment of the seat and front support.

[0041] FIG. 22 is a rear view of a structure for rotation of a sheet according to another embodiment of the present invention.

[0042] A structure for rotating a sheet according to the present invention may include a fixed frame; and a rotating frame disposed left and right on the upper side of the fixed frame and capable of relative cloud rotation with respect to the fixed frame.

[0043] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. However, the technical concept of the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided to ensure that the disclosed content is thorough and complete and to sufficiently convey the spirit of the present invention to those skilled in the art.

[0044] In this specification, when a component is referred to as being on another component, it means that it can be formed directly on the other component, or a third component may be interposed between them. In addition, in the drawings, the thicknesses of films and regions are exaggerated for the purpose of effectively explaining the technical contents.

[0045] Also, although terms such as first, second, and third have been used to describe various components in various embodiments of this specification, these components should not be limited by these terms. These terms are only used to distinguish one component from another. Thus, what is referred to as a first component in one embodiment may be referred to as a second component in another embodiment. Each embodiment described and illustrated herein also includes its complementary embodiments. Also, the term "and / or" has been used herein to mean including at least one of the components listed before and after.

[0046] In the specification, singular expressions include plural expressions unless the context clearly dictates otherwise. In addition, terms such as "comprise" or "have" are intended to specify the presence of a feature, number, step, component, or combination thereof described in the specification, and should not be construed as excluding the presence or addition of one or more other features, numbers, steps, components, or combinations thereof. In addition, the term "connection" is used in the present specification to mean both indirectly connecting multiple components and directly connecting them.

[0047] Additionally, in the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, such detailed description will be omitted. In the description of the present invention, the left-right direction may be described as one side and the other side.

[0048] FIG. 1 is a rear view of a structure for rotating a seat according to one embodiment of the present invention, FIG. 2 is a side view showing a bicycle saddle including the structure of FIG. 1, and FIG. 3 is an exploded perspective view of a portion of the structure of FIG. 1.

[0049] Referring to FIGS. 1 to 3, a structure (10) for rotation of a seat (1) according to an embodiment of the present invention supports the seat (1) that supports the buttocks of a bicycle rider, and supports the seat (1) so that the rear portion of the seat (1) rotates up and down according to the movement of the buttocks of the rider. Before explanation, the seat (1) mentioned in the present invention may be provided as a plastic that can be twisted and bent to correspond to the up and down rotation of the rear portion.

[0050] A structure (10) according to one embodiment of the present invention includes a fixed frame (100), a rotating frame (200), and a rotating module (300).

[0051] According to the illustration in FIG. 2, the rotating frame (200) can be positioned on top of the fixed frame (100) and connected to the lower side of the rear area of ​​the seat (1). The fixed frame (100) can be fixedly connected to the rear end of a saddle rail (2) that is connected to the bicycle body, and the front end of the rail (2) can be connected to the front area of ​​the seat (1).

[0052] The fixed frame (100) may be formed as a square pipe-shaped frame having a rectangular cross-section. The fixed frame (100) may have a predetermined length in the front-back direction and the left-right direction of the sheet (1). According to an embodiment, the left-right length of the fixed frame (100) may be longer than the front-back direction. According to an embodiment, the left-right length of the fixed frame (100) may be shorter than the left-right length of the sheet (1). The fixed frame (100) may have an internal space formed with a bottom and side closed and an upper open.

[0053] According to the illustration in FIG. 1, the rotating frame (200) can be positioned so as to be relatively rotatable with respect to the fixed frame (100) on top of the fixed frame (100) with the rotation center (C) as an axis. Hereinafter, for convenience of explanation, the virtual rotation center point when the rotating frame (200) rotates relative to the fixed frame (100) is referred to as the rotation center (C), the plane crossing the X-axis through which the rotation center (C) passes is referred to as the reference plane (L), and the plane crossing the Y-axis through which the rotation center (C) passes is referred to as the vertical plane (V).

[0054] In an embodiment, the lower surface of the rotating frame (200) may have an arc shape, and the upper surface of the upper surface may be formed as a plane. According to an embodiment, the lower surface of the rotating frame (200) may have a curvature corresponding to the rotation path of the rotating frame (200).

[0055] According to an embodiment, the rotating frame (200) may be placed between the sheet (1) and the fixed frame (100). Preferably, the lower region of the rotating frame (200) may be positioned within the internal space of the fixed frame (100), and the upper region may be positioned at the lower portion of the sheet (1). The lower surface of the rotating frame (200) is positioned at the upper portion of the fixed frame (100).

[0056] The rotating frame (200) can rotate up and down relative to the fixed frame (100) within a predetermined rotation angle range. According to the illustration in Fig. 1, the rotating frame (200) is arranged left and right so that it rotates up and down relative to the fixed frame (100) on the left and right sides.

[0057] A pair of receiving portions (201, 202) may be formed on the inside of the rotating frame (200). The pair of receiving portions (201, 202) may be formed in the left and right regions, respectively, based on the vertical plane (V). The receiving portions (201, 202) may be a space in the shape of a hollow portion with an open upper surface, and may be formed with a predetermined diameter and depth from the top of the rotating frame (200). According to an embodiment, the bottom surfaces of the receiving portions (201, 202) may be formed as a plane. Alternatively, the bottom surfaces of the receiving portions (201, 202) may be formed as a curved surface or an uneven surface, etc. The bottom surfaces of the receiving portions (201, 202) may be support contact portions (21, 22).

[0058] In the receiving portions (201, 202), supports (1a, 1b) having a predetermined height in the form of a circular bar can be inserted, respectively. A plurality of supports (1a, 1b) can be provided. In an embodiment, the supports (1a, 1b) can be provided to be stacked in the vertical direction. According to an embodiment, since the lower surfaces of the supports (1a, 1b) come into contact with the bottom surfaces of the receiving portions (201, 202), the bottom surfaces of the receiving portions (201, 202) can be provided as support contact portions (21, 22).

[0059] A left support contact portion (21) and a right support contact portion (22) may be provided on the rotating frame (200). The support contact portions (21, 22) are positioned below the reference plane (L). The supports (1a, 1b) may be provided so that a load is transmitted to the support contact portions (21, 22) of the rotating frame (200). In an embodiment, the supports (1a, 1b) may be provided to contact the support contact portions (21, 22). In an embodiment, the supports (1a, 1b) may be provided to be integrated with the support contact portions (21, 22). The upper surfaces of the supports may be disposed below the reference plane (L). In an embodiment, the supports (1a, 1b) may be provided to cross the reference plane (L).

[0060] The rotation module (300) can be placed within the internal space and can include a rotation shaft (310, 320) and a rotation roller (311, 321). The rotation module (300) supports and guides the rotation frame (200) to rotate in a cloud manner relative to the fixed frame (100).

[0061] The pivot shaft (310, 320) may have a predetermined diameter and length, and the longitudinal direction may be arranged in the front-back direction of the internal space. According to an embodiment, one end of the pivot shaft (310, 320) may be fixedly coupled to the front of the fixed frame (100), and the other end may be fixedly coupled to the rear of the fixed frame (100).

[0062] A pair of rotation axes (310, 320) may be provided. The pair of rotation axes (310, 320) may be arranged in parallel with a predetermined interval apart. According to an embodiment, the pair of rotation axes (310, 320) may be arranged at positions symmetrical to the left and right with respect to the vertical plane (V), and may be positioned outside the pair of receiving portions (201, 202). In an embodiment, the pair of rotation axes (310, 320) may be positioned inside the pair of receiving portions (201, 202).

[0063] The rotary rollers (311, 321) are coupled to be rotatable relative to the rotary shaft (310, 320) and may have a predetermined length in the longitudinal direction of the rotary shaft. The outer circumferential surface of the rotary rollers (311, 321) may be in contact with the lower surface of the rotary frame (200). The rotary rollers (311, 321) may rotate together with the rotary shaft (310, 320) when the rotary frame (200) rotates, and guide the rotary frame (200) to exhibit rolling rotation.

[0064] Hereinafter, the movement of the structure (10) according to one embodiment of the present invention will be described in detail.

[0065] FIGS. 4 and 5 are drawings showing the movement of a structure for rotation of a sheet according to one embodiment of the present invention.

[0066] First, referring to Fig. 1, the reference line (L) indicating the 0 degree vertical rotation angle of the rotating frame (200) is horizontal, and when the passenger's buttocks apply the same load to the left and right areas of the seat (1), the seat (1) remains horizontal without tilting to either side. At this time, the same magnitude of force (F1 = F2) is applied to the left support contact portion (21) and the right support contact portion (22).

[0067] Referring to Figure 4, when the passenger's buttocks apply a relatively large force to the right area of ​​the seat (1) (F1 <F2), 하중은 우측 지지대 접촉부(22)를 통해 회전 프레임(200)에 전달되어, 회전 프레임(200)이 회전 중심(C)을 축으로 우측이 영역이 하향 회전한다. 이와 함께 회동 롤러(311, 321)는 회동 축(310, 320)을 축으로 반시계 방향으로 회전하고 회전 프레임(200)의 하부면은 회동 롤러(311,321)들에 의해 안내되어 구름 회전되며, 좌측 영역이 상승한다. 회전 프레임(200)의 상부면은 회전에 따라 우측으로 소정 각도로 기울어진다.

[0068] Referring to Figure 5, when the passenger's buttocks apply a relatively large force to the left area of ​​the seat (1) (F1 <F2), 하중은 좌측 지지대 접촉부(21)를 통해 회전 프레임(200)에 전달되어 회전 프레임(200)이 회전 중심(C)을 축으로 좌측 영역이 하향 회전한다. 이와 함께 회동 롤러(311, 312)는 회동 축(310, 320)을 중심으로 시계 방향으로 회전한다. 회전 프레임(200)의 하부면은 회동 롤러(311,321)의 외주면에 접촉되어 구름 회전되며, 우측 영역이 상승한다. 회전 프레임(200)의 상부면은 회전에 따라 좌측으로 소정 각도로 기울어진다.

[0069] Through the above-described process, the seat (1) rotates downwardly to the left or right according to the movement of the passenger's hips. Specifically, when the rotation frame (200) is in a horizontal state with a vertical rotation angle of 0 degrees, when the passenger steps on the left pedal, a relatively large load is applied to the left area of ​​the seat (1), so that the left area of ​​the rotation frame (200) descends and the right area rises, causing the seat (1) to tilt to the left.

[0070] When the upper surface of the rotating frame (200) is positioned below the reference plane (L), the upper surface of the downward rotating frame (200) moves inward to approach the vertical plane (V).

[0071] Accordingly, when the upper surface of the seat (1) is positioned below the reference plane (L), the upper surface of the seat (1) that is lowered moves toward the vertical plane (V), thereby making pedaling easier and improving power transmission efficiency, and reducing friction and pain by reducing interference with the buttocks and thighs.

[0072] FIG. 6 is a rear view of another embodiment of a rotating structure of a sheet according to the present invention.

[0073] Referring to Fig. 6, a triangular plate-shaped rotating frame (230) may be arranged on the upper portion of the rotating rollers (311, 321) of the fixed frame (100) so as to be rotatable relative to the fixed frame (100). The lower surface may be formed as an inclined plane. The rotating frame (230) may be rotatable relative to the fixed frame (100). In this case, the rotation center (C) of the rotating frame (230) may be moved to correspond to the rotation angle. In this case, the reference plane (L) is a horizontal plane that intersects the rotation center (C) when the vertical rotation angle of the rotating frame (230) is 0 degrees. The rotating frame (230) may be arranged below the reference plane (L).

[0074] As an example, the lower surface of the rotating frame (230) may be formed in an elliptical arc shape. In this case, the rotation center (C) may move in position in accordance with the vertical rotation angle of the rotating frame, and the reference plane (L) is a horizontal plane that crosses the rotation center (C) when the vertical rotation angle of the rotating frame (230) is 0 degrees.

[0075] As an example, a support (1a, 1b) according to the present invention may be provided on the rotating frame (230) so that a load is applied to the lower portion of the reference plane (L).

[0076] FIG. 7 is a rear view of a structure according to another embodiment of the present invention.

[0077] Referring to FIG. 7, the structure (20) includes a fixed frame (110), a rotating frame (200), a support (1a, 1b), and a rotating module (330).

[0078] The fixed frame (110) is a square pipe-shaped frame having a rectangular cross-section, and the fixed frame (110) may have a predetermined length in the front-back direction and the left-right direction. According to an embodiment, the left-right length of the fixed frame (110) may be longer than the front-back length. According to an embodiment, the left-right length of the fixed frame (110) may be shorter than the left-right length of the sheet (1). The fixed frame (110) may have an internal space formed with an open top. The internal space may be formed so that the width in the left-right direction is wider than the width in the front-back direction. The internal space may be formed to have a predetermined depth downward from the upper surface of the fixed frame (110). According to an embodiment, the internal space may be formed to correspond to the lower surface of the rotating frame (200) and may have a larger size than the lower surface thereof. A pair of catches (111) may be formed on the inner upper end of the fixed frame (110) forming the internal space. A pair of catches (111) are formed on the left and right sides respectively, and can protrude inwardly from both sides by a predetermined length.

[0079] A rotating frame (200) is placed in the internal space. According to an embodiment, the rotating frame (200) is positioned at a predetermined distance from the inner surface forming the internal space. The rotating frame (200) can rotate up and down within a predetermined rotation angle range above the fixed frame (100).

[0080] The rotation module (330) can be placed within the internal space and comes into contact with the lower surface of the rotation frame (330). The rotation module (330) supports and guides the rotation frame (200) to rotate in a rolling manner relative to the fixed frame (110). The rotation module (330) includes a rolling member. According to an embodiment, the rolling member is provided as a plurality of balls having a predetermined diameter. The balls are arranged in the rotational direction of the rotation frame (200). A plurality of balls can be placed within a pair of catches (111). The balls limit the range of movement in the rotational direction of the rotation frame (200) within the internal space by the catches (111) and are prevented from coming off. The balls move in the same direction as the rotational direction of the rotation frame (200). Unlike the illustration, the balls can be arranged in close contact with each other without being spaced apart from each other.

[0081] In another example, the cloud member may be provided with a plurality of rollers having a predetermined diameter and length. The rollers may be arranged in the direction of rotation of the rotating frame (200).

[0082] Figure 8 is a rear view of a structure (30) according to another embodiment of the present invention.

[0083] Referring to FIG. 8, the structure (30) includes a fixed frame (120) and a rotating frame (200). Hereinafter, for convenience of explanation, a detailed description of the detailed configuration provided in the same manner as in the above-described embodiments among the configurations of the fixed frame (120) and the rotating frame (200) is omitted.

[0084] The fixed frame (120) may be formed with an internal space with an open upper portion. The internal space may be formed so that the width in the left-right direction is wider than the width in the front-back direction. The internal space may be formed to a predetermined depth downward from the upper surface of the fixed frame (120). According to an embodiment, the internal space is formed to correspond to the lower end of the rotating frame (200) and may have a larger size.

[0085] The rotating frame (200) is coupled to the fixed frame (120) so as to be able to slide up and down relative to each other. According to an embodiment, the lower surface of the rotating frame (200) comes into contact with the upper surface forming the internal space, and sliding rotation occurs. The lower surface of the rotating frame (200) and the upper surface of the fixed frame (100) may be concentric circles.

[0086] In the case where the supporters (1a, 1b) and the supporters are not provided in the cities of FIGS. 1 and 6 to 8 as examples, the lower surface of the sheet (1) is in contact with the upper surface of the rotating frame (200) located below the reference plane (L), so the sheet (1) is a support that is in contact with the support contact portion.

[0087] FIG. 9 is a drawing showing the coupling relationship between a support and a receiving portion according to various embodiments of the present invention.

[0088] First, referring to (a), an elastic body (3) is inserted into the space between the receiving portion (201) and the support. The elastic body (3) is provided between the inner surface of the receiving portion (201) and the outer surface of the support (1a, 1b), and is provided along the circumference of the support (1a). The elastic body (3) is made of an elastic material and can be compressed by a force applied by the support (1a). A load applied to the support (1a) can be transmitted to the rotating frame (200) through the elastic body (3). The elastic body (3) is provided in a compressed state so that even when a load is applied to the upper portion, the lower end of the support (1a) contacts the bottom surface of the receiving portion (201) and does not contact the support contact portion (21) of the bottom surface. By being compressed, the adhesive strength of the elastic body (3) to the contact surface is increased. In this case, the load applied to the support (1a) is transmitted to the inner surface of the elastic body (3) in contact with the outer surface of the support (1a), and then to the rotation frame (200) by contacting the outer surface of the elastic body (3) and the support contact portion (21), which is the inner surface of the receiving portion (201). According to an embodiment, the elastic body (3) may be provided as a rubber packing. The elastic body (3) is a support. The support contact portion may be the bottom surface and the inner surface of the supporter.

[0089] Referring to (b), the elastic body (3) can be inserted between the lower end of the support (1a) and the bottom surface of the receiving portion (201). The force applied by the support (1a) can be transmitted to the rotating frame (200) through the bottom surface of the receiving portion (201). In this case, the load applied to the support (1a) can contact the upper surface of the elastic body (3) that is in contact with the lower end of the support (1a), and then contact the lower surface of the elastic body (3) and the support contact portion (21) that is the bottom surface of the receiving portion (201). According to an embodiment, the elastic body (3) is provided from a rubber material, and can be formed so that the support (1a) has elasticity in the vertical direction. The elastic body (3) is the support (1a). The support (1a) can be provided in multiple pieces by being stacked vertically. In this case, if the upper surface of the elastic body (3), which is the support (1a), is located below the reference plane (L), the support (1a) is located below the reference plane (L).

[0090] Referring to (c), a fluid (4) may be provided inside the receiving portion (201). A portion of the support (1a) is inserted into the inside of the receiving portion (201). In this case, the fluid (4) is pressurized by the load applied to the support (1a), and the load may be transmitted to the support contact portion (21), which is the bottom surface of the receiving portion (201). This is the principle of a fluid pump, in which the receiving portion (201) acts as a cylinder, and the support (1a) acts as a piston. According to another example, in addition to the fluid (4), a substance such as a liquid, a compressed gas, a semi-solid, a powder, or an adhesive may be provided inside the receiving portion (201).

[0091] Referring to (d), an elastic body (5) is integrally connected to the support contact portion (21). According to an embodiment, the elastic body (5) may be provided as a coil spring or a plate spring. The elastic body (5) of the embodiment is provided as a coil spring. The support (1a) can move up and down by the elastic body (5). The elastic body (5) may be a support. The connection point between the elastic body (5) and the rotating frame (200) is provided as the support contact portion (21).

[0092] As in the embodiment, the supports (1a, 1b) can transfer the load to the rotating frame (200) by directly contacting the side surfaces of the receiving portions (201, 202) or without directly contacting the receiving portions (201, 202) and the bottom surface. The supports can be provided so that the load is transferred to the support contact portion located below the reference plane (L).

[0093] FIG. 10 is a front view showing a structure (40) for rotation of a sheet (1) according to another embodiment of the present invention.

[0094] Referring to FIG. 10, a structure (40) according to another embodiment of the present invention includes a fixed frame (140), a rotating frame (240), and a rotating module (340).

[0095] The fixed frame (140) is a frame having a predetermined thickness and length, and can be positioned at the lower rear area of ​​the seat (1). The fixed frame (140) can be fixedly connected to a saddle rail (2) that is connected to the bicycle body.

[0096] The rotating frame (240) is provided with a predetermined length and can be arranged parallel to the fixed frame (140). According to an embodiment, the rotating frame (240) can be positioned above the fixed frame (140). In addition, the rotating frame (240) can have a longer length than the fixed frame (140).

[0097] A receiving portion (241, 242) may be formed in the rotating frame (240). The receiving portions (241, 242) may be formed as a pair. According to an embodiment, one receiving portion (241) may be located in the left region of the rotating frame (240), and the other receiving portion (242) may be located in the right region of the rotating frame (240). The receiving portions (241, 242) may be formed at both ends of the rotating frame (240). The receiving portions (241, 242) have receiving spaces formed on the inside with open upper surfaces. According to an embodiment, the receiving portions (241, 242) may be provided in a cylindrical shape with a predetermined diameter and open upper surfaces.

[0098] In the receiving portions (241, 242), supports (1a, 1b) having a predetermined height in the form of a round bar can be inserted, respectively. The supports (1a, 1b) can be provided across the reference plane (L). According to an embodiment, since the lower surfaces of the supports (1a, 1b) contact the bottom surfaces of the receiving portions (241, 242), the bottom surfaces of the receiving portions (241, 242) can be provided as support contact portions (243, 244).

[0099] According to one embodiment, the support contact portion (243, 244) may be formed in various shapes such as a flat surface or a rough surface, and may have a structure in which the load applied to the support (1a, 1b) is transferred to the rotating frame (240). Various embodiments may be provided according to the illustration in FIG. 9.

[0100] The rotation module (340) rotates the rotation frame (240) relative to the fixed frame (140) about the rotation axis. The rotation module (340) includes a left frame (350), a right frame (360), a first lower connecting shaft (351), a second lower connecting shaft (361), a first upper connecting shaft (352), and a second upper connecting shaft (362).

[0101] The left frame (350) is provided with a predetermined length and connects the left area of ​​the fixed frame (140) and the left area of ​​the rotating frame (240). The lower end of the left frame (350) is connected to the fixed frame (140), and the upper end is connected to the rotating frame (240). The left frame (350) is arranged to be inclined at a predetermined angle with respect to the fixed frame (140). According to an embodiment, the angle (*?*) between the left frame (350) and the fixed frame (140) may preferably be about 45°. Therefore, the connecting area of ​​the left frame (350) and the fixed frame (140) is located relatively to the left of the connecting area of ​​the left frame (350) and the rotating frame (240). Fastening holes are formed at the upper and lower ends of the left frame (350), respectively.

[0102] The right frame (360) has the same shape as the left frame (350). The right frame (360) connects the right area of ​​the fixed frame (140) and the right area of ​​the rotating frame (240). The lower end of the right frame (360) is connected to the right area of ​​the fixed frame (140), and the upper end is connected to the right area of ​​the rotating frame (240). The right frame (360) is arranged to be inclined at a predetermined angle with respect to the fixed frame (140). The angle between the right frame (360) and the fixed frame (140) may be the same as the angle between the left frame (350) and the fixed frame (140). Therefore, the connection area between the right frame (360) and the fixed frame (140) is located relatively to the right of the connection area between the right frame (360) and the rotating frame (240). Fastening holes are formed at the upper and lower ends of the right frame (360), respectively.

[0103] The first lower connecting shaft (351) connects the left area of ​​the fixed frame (140) and the lower end of the left frame (350). According to an embodiment, the first lower connecting shaft (351) protrudes forward from the left area of ​​the fixed frame (140) by a predetermined length and is inserted into a fastening hole formed at the lower end of the left frame (350). The left frame (350) can rotate around the first lower connecting shaft (351).

[0104] The first upper connecting shaft (352) connects the left area of ​​the rotating frame (240) and the upper end of the left frame (350). According to an embodiment, the first upper connecting shaft (352) protrudes forward from the left area of ​​the rotating frame (240) by a predetermined length and is inserted into a fastening hole formed at the upper end of the left frame (350). The left frame (350) can rotate around the second upper connecting shaft (352).

[0105] The second lower connecting shaft (361) connects the right area of ​​the fixed frame (140) and the lower end of the right frame (360). According to an embodiment, the second lower connecting shaft (361) protrudes forward from the right area of ​​the fixed frame (140) by a predetermined length and is inserted into a fastening hole formed at the lower end of the right frame (360). The right frame (360) can rotate around the second lower connecting shaft (361).

[0106] The second upper connecting shaft (362) connects the right area of ​​the rotating frame (240) and the upper end of the right frame (360). According to an embodiment, the second upper connecting shaft (362) protrudes forward from the right area of ​​the rotating frame (240) by a predetermined length and is inserted into a fastening hole formed at the upper end of the right frame (360). The right frame (360) can rotate around the second upper connecting shaft (362).

[0107] The center point of the connecting line crossing between the center of the first upper connecting shaft (352) and the center of the second upper connecting shaft (362) is provided as a center of rotation (C) through which the rotating frame (240) can rotate relative to the fixed frame (140). The supports (1a, 1b) are provided over a plane crossing the X-axis having the center of rotation (C) of the rotating frame (240) according to the illustration in Fig. 1, i.e., a reference plane (L). The supports (1a, 1b) can be provided so that a load is transmitted to the support contact portions (243, 244) located below the reference plane (L).

[0108] Fig. 11 is a drawing schematically showing the structure of Fig. 10, and Fig. 12 is a drawing showing the movement of the structure of Fig. 11.

[0109] First, referring to Fig. 11, when the passenger's buttocks apply the same load to the left and right areas of the seat (1), the seat (1) maintains balance without tilting to either side. At this time, a force of the same magnitude (F1 = F2) is applied to the support contact portions (243, 244), which are the bottom surfaces of the receiving portions (241, 242), from the supports (1a, 1b).

[0110] Referring to (a) of Fig. 12, when the passenger's buttocks apply a relatively large force to the left area of ​​the seat (1) (F1>F2), the left side of the rotating frame (240) moves downward, and the left frame (350) rotates clockwise around the first lower connecting shaft (351) and the first upper connecting shaft (352) descends. Then, the right frame (360) rotates clockwise around the second lower connecting shaft (361) and the second upper connecting shaft (362) rises. At this time, the rotating frame (240) moves simultaneously to the right.

[0111] Referring to (b) of Fig. 12, when the passenger's buttocks apply a relatively large force to the right area of ​​the seat (1) (F1 <F2), 회전 프레임(240)의 우측이 하향되면서, 우측 프레임(360)이 제2하부 연결축(361)을 중심으로 반시계 방향으로 회전하면서 제2상부 연결축(362)이 하강한다. 그리고 좌측 프레임(350)이 제1 하부 연결축(351)을 중심으로 반시계 방향으로 회전하면서 제1상부 연결축(352)이 상승한다. 이때 회전 프레임(240)은 좌측으로 동시에 이동한다.

[0112] Through the above-described process, the seat (1) rotates downwardly to the left or right in accordance with the movement of the passenger's hips. Specifically, when the passenger steps on the left pedal, a relatively large load is applied to the left area of ​​the seat (1), causing the left area of ​​the rotating frame (240) to descend and the right area to rise, simultaneously moving to the right.

[0113] And when the right pedal is pressed, a relatively large load is applied to the right area, so that the right area of ​​the rotating frame (200) descends and the left area rises, simultaneously moving to the left. The rotation center (C) of the rotating frame (240) regularly moves in position corresponding to the rotation angle.

[0114] In addition, the load applied to the seat (1) is first transmitted to the contact points (P1, P2) of the lower portions of the supports (1a, 1b) having a predetermined height and the receiving portions (241, 242), i.e., the support contact portions (243, 244) which are the bottoms of the receiving portions (241, 242). Since the points (P1, P2) where the load is transmitted are located lower than the reference plane (L) connecting the center of the first upper connecting shaft (340) and the center of the second upper connecting shaft (360), the rotating frame (240) can rotate more smoothly. This can stably maintain the close contact between the seat (1) and the passenger's buttocks, and reduce the impact of the road surface, thereby reducing the pain transmitted to the passenger's buttocks and waist.

[0115] As an example, the supports (1a, 1b) may be formed so that the upper surfaces of the supports (1a, 1b) in the illustration of FIG. 10 are positioned below the reference plane (L), and the lower surface of the sheet (1) may be formed to protrude downwards so as to contact the upper surfaces of the supports (1a, 1b), respectively. That is, the supports (1a, 1b) may be provided below the reference plane (L). As an example, if the upper surfaces of the supports (1a, 1b) in the illustration of FIG. 10 are integrated with the lower surface of the sheet (1), the sheet (10) may be a support formed as one unit.

[0116] As illustrated in FIGS. 1, 6 to 8 and 10, the rotating structure according to the present invention may be provided with a support so that a load is transmitted to a support contact portion located below a reference plane (L) passing through the center of rotation of the rotating frame. In addition, the support may be located below the reference plane (L). The supports (1a, 1b) may be provided so that the reference plane (L) crosses. One or more supports may be provided at the support contact portion.

[0117] Additionally, when the support (1a, 1b) is removed and the lower surface or bottom of the sheet (1) comes into contact with the support contact portion of the rotating frame (200), the sheet (1) can be a support.

[0118] FIG. 13 is an exploded perspective view showing a bicycle saddle including a structure according to another embodiment of the present invention, FIG. 14 is a rear view of the bicycle saddle of FIG. 13, and FIG. 15 is a side view of the bicycle saddle of FIG. 13.

[0119] The bicycle saddle (1000) of the present invention includes a seat (11) and a structure (50).

[0120] The sheet (11) may have a predetermined shape and size. The sheet (11) may have a plurality of connecting pins (12, 13) formed on the outer surface. According to an embodiment, the connecting pins (12, 13) may be formed one at each of the front and rear surfaces of the sheet (11). The connecting pins (12, 13) may protrude from the surfaces by a predetermined length. A central axis (14) may be formed on a lower surface adjacent to the rear surface of the sheet (11). The central axis (14) may protrude downward from the lower surface by a predetermined length. A conical groove (15, 16) may be formed in a front region of the sheet (11). A pair of conical grooves (15, 16) may be formed, and may be arranged on the left and right regions of the sheet (11), respectively. The conical grooves (15, 16) may have a predetermined depth and diameter in an inward direction from the bottom surface of the sheet (11). According to an embodiment, the diameter of the conical grooves (15, 16) may gradually decrease from the bottom surface to the inside.

[0121] The structure (50) includes a fixed frame (150), a rotating frame (250), and a rotation module (370).

[0122] The fixed frame (150) supports the sheet (11) at the bottom of the sheet (11). The fixed frame (150) may have a predetermined length in the longitudinal direction of the sheet (11). According to an embodiment, the length of the fixed frame (150) may correspond to the length of the sheet (11) or may be provided to be shorter than that. The fixed frame (150) includes a front region, a rear region, and a connection region.

[0123] The front region is arranged in the front region of the seat (11) and supports the front region of the seat (11). A front support member (160) is provided in the front region with a predetermined width in the left-right direction. The front support member (160) can be arranged perpendicular to the seat (11) and can have a predetermined height. According to an embodiment, the front support member (160) has a cone shape with a predetermined diameter, and the diameter can gradually decrease from the bottom to the top. Preferably, the upper region of the front support member (160) can have a size corresponding to or smaller than the cone-shaped grooves (15, 16). The front support member (160) includes a left front support member (161) and a right front support member (162).

[0124] The left front support (161) and the right front support (162) can be arranged at a predetermined distance apart from each other. The left front support (161) and the right front support (162) can be connected to each other at their lower ends. The left front support (161) is inserted into the left conical groove (15), and the right front support (162) is inserted into the right conical groove (16). According to an embodiment, the left conical groove (15) is coupled to the left front support (161) so as to be able to rotate up and down in all directions, and the right conical groove (16) is coupled to the right front support (162) so as to be able to rotate up and down in all directions. A connecting link (175) having a predetermined length is inserted between the connecting pin (12) in front of the seat (11) and the connecting pin (164) in front of the fixed frame (150) to prevent the upper part of the front area of ​​the seat (10) from being dislodged, and the connecting pin insertion groove of the connecting link (175) can have a predetermined amount of play so that the seat (11) does not interfere with the up-and-down rotation.

[0125] The rear region is arranged in the rear region of the seat (11) and supports the rear region of the seat (11) and the rotation frame (250). The rear region supports the rotation frame (250) so as to be rotatable. The rear region may include a connecting plate (170).

[0126] The connecting plate (170) has a structure in which thin plates are connected, and may have a front, a rear, and a bottom surface. The rear surface may be triangular in shape, may be arranged perpendicular to the rear of the sheet (11), and may have a predetermined height. Three holes may be formed on the inner side of the rear surface. According to an embodiment, one hole (171) may be formed at the upper portion, and the remaining holes may be formed in the lower region of the rear surface. A connecting pin (13) formed at the rear of the sheet (11) may be inserted into the upper hole (171), but may have a clearance so that the vertical rotation of the sheet (11) is not interfered with.

[0127] The front surface is positioned in front of the rear surface and may have a lower height than the rear surface. The bottom surface is the bottom surface of the connecting plate (170) and connects the front surface and the rear surface. The connecting plate (170) may have an inner space formed with an open top and side.

[0128] The connecting region (180) connects the front region and the rear region. The connecting regions (180) are respectively arranged in the left region and the right region along the longitudinal direction of the sheet (11). One end of the connecting regions (181, 182) is connected to the front support member (160), and the other ends are respectively inserted into the lower holes of the connecting plate (170). According to an embodiment, one end of the connecting regions (181, 182) may be formed to extend from the front support member (160).

[0129] The rotating frame (250) can be placed in the inner space. According to an embodiment, the rotating frame (250) is positioned a predetermined distance apart from the floor surface forming the inner space. The rotating frame (250) can have a predetermined thickness, and the lower surface can be formed in an arc shape, and the upper surface can be formed in a plane, but can be symmetrical on both sides with respect to a vertical plane (V) passing through the rotation center (C). According to an embodiment, the lower surface of the rotating frame (250) has a curvature corresponding to the rotation path of the rotating frame (250). The lower surface can be formed with a curvature of a circle. The rotating frame (250) rotates up and down within a predetermined rotation angle range about the axis of the rotation center (C). A receiving portion (271) can be formed at the upper end of the rotating frame (250). The receiving portion (271) can be formed inward from the upper surface of the rotating frame (250) to a predetermined depth. A central axis (14) can be inserted into the receiving portion (271). According to an embodiment, the lower end of the central axis (14) can be positioned at a predetermined distance from the bottom surface of the receiving portion (271).

[0130] The rotation module (370) is placed within the inner space. The rotation module (370) includes a rotation shaft (371, 372) and a rotation roller (373, 374).

[0131] The rotation axis (371, 372) can be fixedly connected to the lower holes at the other end of the connection areas (181, 182).

[0132] The rotary rollers (373, 374) are coupled to be relatively rotatable with respect to the rotary shaft (371, 372) and may have a predetermined length in the longitudinal direction of the rotary shaft (371, 372). The outer surface of the rotary rollers (373, 374) is in contact with the lower end of the rotary frame (250). When the rotary frame (250) rotates, the rotary rollers (373, 374) rotate together with the rotary shaft (371, 372) as an axis to guide the rolling rotation of the rotary frame (250). According to an embodiment, the rotary rollers (373, 374) may be in contact with the rotary frame (250) and rotate to exhibit rolling rotation.

[0133] According to the embodiment of the city of FIG. 14, the sheet (11) is positioned below the reference plane (L) and the lower surface is in contact with the upper surface of the rotating frame (250), which is the support contact portion, so that the sheet (11) can be a support of the rotating structure according to the present invention. In an embodiment, a support can be provided between the lower surface of the sheet (11) and the upper surface of the rotating frame (250). In an embodiment, the upper portion of the rotating frame (250) can be positioned above the reference line (L). In an embodiment, the sheet (11) can be positioned above the reference plane (L).

[0134] Below, the movement of the seat (11) according to the load through the bicycle saddle described above is described in detail.

[0135] Figures 16 to 18 are drawings for explaining the movement of the sheet (11) according to the load applied to the upper portion of the sheet (11) of Figure 13.

[0136] First, referring to Fig. 16, when the same magnitude of force (F1 = F2) is applied to the left and right areas of the seat (11), the seat (11) does not tilt to either side and maintains equilibrium. The front area of ​​the seat (11) is supported by the front support member (160: 161, 162), and the rear area is supported on the upper part of the rotation frame (250), so that the seat (11) maintains a horizontal state with a vertical rotation angle of 0°. Hereinafter, for convenience of explanation, an imaginary straight line connecting the rotation center (C) of the rotation frame (250) and the support point of the left conical groove (15) is referred to as a first axis line (L), and an imaginary straight line connecting the rotation center (C) and the support point of the right conical groove (16) is referred to as a second axis line (R). In the horizontal state of the seat (11), the first axis line (L) and the second axis line (R) are formed simultaneously.

[0137] Referring to Fig. 17, when a relatively large force is applied to the left region of the seat (11) (F1>F2), the rotary frame (250) tilts to the left about the center of rotation (C) and rotates downward. In this process, the front region of the seat (11) is supported by the left front support member (161), and the rear region rotates downward while being supported on the upper part of the rotary frame (250). Accordingly, the left region of the seat (11) rotates downward with respect to the first axis line (L). In addition, the right region of the seat (11) rises with the right conical groove (16) separated from the right front support member (162), thereby causing the second axis line (R) to disappear.

[0138] Referring to Fig. 18, when a relatively large force is applied to the right area of ​​the sheet (11) (F1 <F2), 회전 프레임(250)은 회전 중심(C)을 축으로 우측으로 기울어지며 하향 회전한다. 이 과정에서, 시트(11)의 전방 영역이 우측 전방 지지부(162)에 지지되고 후방 영역이 회전 프레임(250) 상부에 지지된 상태로 하향 회전한다. 이에 따라, 시트(11)의 우측 영역이 제2 축선(R)을 기준으로 하향 회전한다. 그리고 시트(11)의 좌측 영역은 좌측 원추 홈(15)이 좌측 전방 지지부(161)로부터 이격되며 상승하게 되고, 이로 인해 제1 축선(L)이 소실된다.

[0139] The bicycle saddle (1000) described above can have a first axis (L) and a second axis (R) repeatedly formed on the left and right sides when the seat (11) rotates up and down, and when the seat (11) momentarily maintains a horizontal state while moving, the front region of the seat (11) is simultaneously supported by the front support member (160), so that the first axis (L) and the second axis (R) can be formed simultaneously. The first axis and the second axis can be formed to be mutually disconnected. The first axis and the second axis can intersect diagonally in a vertical plane (V) when viewed from the top of the seat (11). The forward intersection angles with the vertical plane (V) can each be within 45 degrees. If the intersection angles are large, the rotation pattern of the seat (11) can reduce the efficiency of pedaling. The intersection point is located rearward of the front support member (160).

[0140] In the case of the bicycle saddle of Fig. 13, if the axis that serves as the rotation reference of the seat (11) is formed diagonally, pedaling becomes easier than when the axis is formed in the vertical direction of the center of the seat (11), and the load on the seat (11) is evenly distributed, which can reduce pain in the buttocks.

[0141] As an example, in the configuration of FIG. 13, the rear region of the seat (11) may be arranged as a rotating structure in which a conical support portion and a conical groove are combined. By inserting the conical rear support portion, which is a rear fixed frame (150), into the conical groove formed on the rear lower surface of the seat (11), the seat (11) can be rotated relative to the rear support portion.

[0142] In this case, the rotating frame in which the conical groove is formed may be a structure integrated with the sheet (11).

[0143] A structure (10) that can be included in a bicycle saddle of the city of Fig. 13 may include various structures capable of rotating the seat, such as the structures of Figs. 1, 6 to 8 and Fig. 10, and each rotating frame may be provided with a support according to the present invention so that a load is transmitted to a support contact portion located on the upper surface of the rotating frame or the lower portion of the reference plane (L).

[0144] Fig. 19 is a drawing showing another embodiment of the sheet (11) and the front support (160).

[0145] Referring to FIG. 19, the sheet (11) may have a central conical groove (17) formed between a left conical groove (15) and a right conical groove (16), and a central front support (163) may be provided in the central conical groove (17). The central front support (163) may be provided between the left front support (161) and the right front support (162). According to an embodiment, the central front support (163) may be provided as a male screw and may be fastened to a connecting area of ​​the left front support (161) and the right front support (162) through a screw connection. The central front support (163) may be moved up and down. The left conical groove (15), the right conical groove (16) and the central conical groove (17) of the seat (11) are formed to be rotatable up and down with respect to the left front support (161), the right front support (162) and the central front support (163), respectively. When the central front support (163) is rotated downward, the seat (11) is supported by the left front support (161) and the right front support (162) and can be rotated up and down relative to them, and when the central front support (163) is rotated upward, the seat (11) is supported by the central front support (163) and can be rotated relative to them. In addition, by adjusting the downward position of the central front support (163), the conical grooves (15, 16, 17) of the seat (11) can be rotated up and down while being sequentially supported by the front supports (160: 161, 162, 163). The front support member (160) can be formed by separating the contact surface with the sheet (11) into multiple pieces in the left and right directions. Depending on the contact state, the sheet (11) and the front support member (161, 162, 163) can exhibit rolling rotation when rotating up and down.

[0146] Fig. 20 is a drawing showing another embodiment of the sheet (11) and the front support (190).

[0147] Referring to Fig. 20, a rack gear (18) may be formed on the lower surface of the seat (11), and a pinion gear (191) may be formed on the upper surface of the front support portion (190). The rack gear (18) and the pinion gear (191) may mesh with each other. In this case, the front of the seat (11) may rotate up and down while the rack gear (18) is engaged with the pinion gear (191) during the up and down rotation, but the mutual contact surfaces may be rotated without being disconnected. In an embodiment, the pinion gear (191) and the rack gear (18) are meshed, and a flat-shaped rolling surface is formed on the outer side of the rack gear (180), and an arc-shaped rolling surface is formed on the outer side of the pinion gear (191), so that they may contact each other so as to be able to rotate. In this case, the rolling rotation may be continuously performed without being disconnected while moving left and right.

[0148] Fig. 21 is a drawing showing another embodiment of the sheet (11) and the front support (195).

[0149] Referring to Fig. 21, a protrusion (19) may be formed on the lower surface of the front of the sheet (11). The protrusion (19) may be formed downward from the lower surface of the sheet (11) by a predetermined length. The end of the protrusion (19) may be formed with a lower jaw (19) that protrudes outward along the circumference. The front support portion (195) may have a concave groove (198) formed inwardly on the upper surface, and support jaws (196, 197) may be formed on both sides with the concave groove (198) in between. The front support portions (196, 197) may have a predetermined height upward from the upper surface and may have a convex semicircular shape. The front support part (1950) can be formed into multiple parts in the left and right directions. A protrusion (19) is inserted into the concave groove (198), and the upper ends of the support jaws (196, 197) are in contact with the front bottom surface of the sheet (11). When the sheet (11) rotates up and down, rolling rotation can occur in the left and right areas of the front of the sheet (11) along the upper ends of the support jaws (196, 197). The rolling rotation can occur in multiple disconnected parts. When the front of the sheet (11) rotates rollingly, the front lower part of the sheet (11) can perform rolling contact with the front support part (196) by the clearance between the lower jaw (19) and the concave groove (198) so that the movement in the left and right direction is not restricted.

[0150] The axis lines (L, R) of the support points of the seat (11) and the front support (190, 195) and the rotation center (C) of the rotation frame (250) may appear continuously or disconnected depending on the cloud rotation during the up-and-down rotation.

[0151] For example, the left-right width of the point where the front support member (160, 190, 195) and the seat (11) can come into contact may be limited to within 8 centimeters. If the left-right width is large, the structure of the front support member may protrude to the left and right sides of the seat (11), causing pain due to friction with the inner thigh when pedaling.

[0152] FIG. 22 is a rear view of a structure for rotation of a sheet according to another embodiment of the present invention.

[0153] Referring to Fig. 22, a rotating frame (700) placed on top of a fixed frame (800) may be provided as a plate of a predetermined thickness, and a first receiving space (710) and a second receiving space (720) may be formed. The first receiving space (710) and the second receiving space (720) may be positioned at a predetermined distance apart from each other on the rotation path of the rotating frame (700) and may have a curvature corresponding to the rotation path of the rotating frame (700).

[0154] The rotating frame (700) may be provided with supporters on the left and right sides, respectively. The supporters (730, 740) may be formed as a pair. The pair of supporters (730, 740) may be formed at a predetermined distance apart from each other. According to an embodiment, one supporter (730) may be positioned in the left area of ​​the rotating frame (700), and the other supporter (740) may be positioned in the right area of ​​the rotating frame (700). The pair of supporters (730, 740) may be formed at both ends of the rotating frame (700).

[0155] According to an embodiment, the supporter (730, 740) is a space provided with a predetermined depth in the shape of a pipe of a predetermined diameter with an open upper portion and a bottom surface at the lower portion, and a support having a predetermined height is inserted into the space of the supporter (730, 740) of the rotating frame (700), so that a plurality of supports (21, 22) can be provided below the reference plane (L) formed by the rotation center (C1) of the rotating frame (700).

[0156] The supporter (730, 740) may have its bottom surface positioned between the first receiving space (710) and the second receiving space (720).

[0157] The fixed frame (800) is located in front of the rotating frame (700) and may be provided as a plate having a larger width than the rotating frame (700).

[0158] The rotation module (900) may include rotation guides (910, 920). The rotation guides (910, 920) may be provided in pairs, and may be positioned one in each of the first receiving space (710) and the second receiving space (720). The rotation guides (910, 920) may be provided in a predetermined length, and one end may be fixedly connected to a fixed frame (800).

[0159] According to an embodiment, the rotation guide (910, 920) includes a rotation shaft (911, 921) and a rotation roller (912, 922).

[0160] The pivot shaft (911, 912) can be provided in a predetermined length, and one end can be fixedly connected to the fixed frame (800). The pivot roller (912, 922) has a cylindrical shape, and the pivot shaft (911, 921) is inserted inside each. The pivot roller (912, 922) can rotate relative to the pivot shaft (911, 912).

[0161] The upper surfaces of the inner surfaces (711, 721) of the first receiving space (710) and the second receiving space (720) are in contact with the outer surfaces of the rotating rollers (912, 922), respectively. By the rotation of the rotating rollers (912, 922), the rotating frame (700) can rotate smoothly around the center of rotation (C1).

[0162] As an example, a pair of rotary rollers (912, 922) are connected to a fixed frame (800) at a predetermined distance apart so as to be able to rotate relative to each other, and the outer surface of the pair of rotary rollers (912, 922) can be in cloud contact with the upper surface of the inner surface (711, 721), which is the lower surface of the rotary frame (700).

[0163] In an embodiment, an empty space may be provided between the reference plane (L) formed by the upper surface of the support (1a, 1b) and the center of rotation (C1) of the rotation frame (700). When the seat (1) is installed in the empty space and the center of rotation (C1) of the rotation frame (700) is positioned on the upper surface of the seat (1), the surface of the seat (1) moves downward and inward at the same time, so that interference between the inner side of the thigh and the seat (1) is reduced, thereby facilitating pedaling, and friction between the seat surface and the buttocks may be reduced, thereby reducing pain.

[0164] The lower surface of the rotating frame (700) may be positioned above the upper surface of the fixed frame (800). The rotating frame (700) positioned above the fixed frame (800) and rotating relatively may be provided with a plurality of supports (1a, 1b) so that a load is applied to the lower portion of the reference plane (L) of the rotating frame (700). The reference plane (L) is a horizontal plane that crosses the center of rotation when the vertical rotation angle of the rotating frame (700) is 0 degrees.

[0165] The supports (1a, 1b) may be provided with one support on each of the left and right sides, or the supports (1a, 1b) may be provided as a single unit.

[0166] When a load is applied to each of the supports (1a, 1b) of the rotating frame (700), the rotating frame (700) can rotate relative to the fixed frame (800) about (C1) in a state where the upper inner surface (711, 721), which is the lower surface, is in cloud contact with the outer surface of the rotating roller (912, 922) that is connected to the fixed frame (800) so as to be able to rotate relative to the fixed frame (800).

[0167] FIG. 22 A structure for rotating a sheet according to a city includes a rotating frame (700) that is arranged left and right on top of a fixed frame (800) and is capable of relative rotation within a predetermined range, and supports (1a, 1b) may be provided so that a load is applied to the lower portion of a reference plane (L) that crosses the center of rotation of the rotating frame (700). The supports (1a, 1b) may be provided below the reference plane (L). One support (1a, 1b) may be provided for each of the left and right regions of the rotating frame (700), and the supports (1a, 1b) may be formed integrally and provided across the left and right regions.

[0168] The support (1a, 1b) can be provided according to the embodiment of FIG. 1 and the embodiment of FIG. 9. The vertical rotation range of the rotation frame (700) can be limited within a predetermined rotation angle.

[0169] As an example, the rotation roller (912, 922) has a rotation range limited within the inner surface (711, 721) of the rotation frame (700).

[0170] The reference plane (L) crossing the center of rotation (C) of the rotation frame of the structure for rotation of the seat according to the present invention represents a horizontal plane when the up-down rotation angle of the rotation frame is 0 degrees, so when the bicycle saddle including the structure for rotation of the seat according to the present invention is connected to the saddle bar and mounted on a bicycle and the bicycle is placed vertically, and the seat is in a horizontal state, the rotation frame can be in a horizontal state when the up-down rotation angle of the rotation frame is 0 degrees.

[0171] That is, since the rotating frame and the seat rotate up and down together, the horizontal state of the seat can become the horizontal state of the rotating frame. In the drawings of embodiments of the structure for rotating the seat of the present invention, the upper surface of the rotating frame is depicted as being parallel to the reference plane (L), which is merely a shape representing the structure of the embodiments, and since the shape of the upper surface has no correlation with the function or operation of the present invention, the horizontal shape of the upper surface cannot represent the horizontal state of the rotating frame.

[0172] While the present invention has been described in detail using preferred embodiments, the scope of the present invention is not limited to the specific embodiments described above, and should be interpreted in accordance with the appended claims. Furthermore, those skilled in the art will appreciate that numerous modifications and variations are possible without departing from the scope of the present invention.

[0173] The bicycle saddle according to the present invention can be applied to a single-wheel, two-wheel, three-wheel, four-wheel, and exercise bicycle, and can be used in various bicycle products as it can reduce pain and improve power transmission when pedaling.

[0174] 10: Structure

[0175] 100: Fixed frame

[0176] 200: Rotating Frame

[0177] 201, 202: Reception area

[0178] 1a, 1b: Support

[0179] 21, 22: Support contact area

[0180] 300: Rotation module

[0181] 310, 320: Rotation axis

[0182] 311, 321: Rotating roller

[0183] 1000: Bicycle saddle

Claims

1. A structure for rotation of a sheet, comprising a fixed frame; and a rotating frame arranged left and right on the upper side of the fixed frame and capable of relative cloud rotation with respect to the fixed frame.

2. A structure for rotation of a sheet, including a fixed frame; and a rotating frame arranged left and right on the upper side of the fixed frame and capable of relative sliding rotation with respect to the fixed frame.

3. In paragraphs 1 and 2, A structure for rotation of a sheet in which a support is provided so that a load is transmitted to a support contact portion located below a reference plane crossing the center of rotation of the above-mentioned rotating frame.

4. In paragraphs 1 and 2, The above rotation frame is a structure for rotation of a sheet placed below a reference plane crossing the rotation center of the above rotation frame.

5. Rotating frame; and A fixed frame having a front region provided with a front support member supporting the front region of the seat and a rear region supporting the rotation frame so that the rotation frame can rotate, The above seat is a bicycle saddle that can rotate around an axis connecting the center of rotation of the above rotating frame and the support point of the above front support.

6. In paragraph 5, The above front support part It is provided in a certain length in the left and right directions, The above axis line A first axis connecting the center of rotation of the above rotating frame and one support point of the front support; and Including a second axis connecting the center of rotation of the above rotating frame and the other support point of the front support, The above seat is a bicycle saddle that can rotate around the first axis and the second axis.

7. In paragraph 8, A bicycle saddle in which the front support part is divided into multiple parts in the left and right directions.

8. In paragraph 8, The above seat is a bicycle saddle in which relative cloud rotation is continuously displayed with respect to the front support member.

9. In paragraph 8, A bicycle saddle in which the above cloud rotation appears disconnected.

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