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WO2021241768A1 - Ensemble tige de selle à suspension - Google Patents

Ensemble tige de selle à suspension Download PDF

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Publication number
WO2021241768A1
WO2021241768A1 PCT/KR2020/006783 KR2020006783W WO2021241768A1 WO 2021241768 A1 WO2021241768 A1 WO 2021241768A1 KR 2020006783 W KR2020006783 W KR 2020006783W WO 2021241768 A1 WO2021241768 A1 WO 2021241768A1
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WO
WIPO (PCT)
Prior art keywords
post
clamp
seat
seat tube
bushing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2020/006783
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English (en)
Korean (ko)
Inventor
이재용
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to PCT/KR2020/006783 priority Critical patent/WO2021241768A1/fr
Publication of WO2021241768A1 publication Critical patent/WO2021241768A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J1/00—Saddles or other seats for cycles; Arrangement thereof; Component parts
    • B62J1/02—Saddles resiliently mounted on the frame; Equipment therefor, e.g. springs
    • B62J1/06—Saddles capable of parallel motion up and down
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J1/00—Saddles or other seats for cycles; Arrangement thereof; Component parts
    • B62J1/08—Frames for saddles; Connections between saddle frames and seat pillars; Seat pillars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening

Definitions

  • the present invention relates to a suspension seat post assembly, and more particularly, to a suspension seat post assembly configured to absorb an impact transmitted to a saddle while riding a bicycle.
  • Suspension is applied to various positions on bicycles to absorb shocks that occur while riding a bicycle, and the front wheels, rear wheels, and seat posts are representative.
  • the suspension of the seat post prevents fatigue and injury of the hip and lower back caused by road impact, and is often used when it is difficult to apply the suspension to the front and rear wheels.
  • the general structure of the suspension seat post is a head that fixes the saddle, an inner tube that is connected to the head and inserted into the outer tube, an anti-separation cap that prevents the inner tube from being separated, and the oil inside or foreign substances entering the inside. It includes a dust seal to keep it from going.
  • a bushing that allows the inner tube to move up and down smoothly without shaking, a spring support with a spring positioned at the top and bottom, a spring that absorbs shock, a spring force adjustment stopper that adjusts the spring force, It includes an outer tube to be inserted and fixed.
  • the general suspension seat post described above has a structure in which the inner tube is inserted into the outer tube, and the outer diameter of the inner tube must be smaller than the outer tube. Otherwise, the overall weight of the seat post increases due to the problem of having to make it thicker, the structure becomes complicated, and the appearance is not good due to the thinner inner tube.
  • a bicycle frame is a frame that is combined with a steering device such as a handle and a driving device such as wheels to form a bicycle.
  • a bicycle frame usually consists of two triangles, the main triangle formed by the handle, footrest, and the saddle, and the triangle formed by the rear wheel axle, hence the name diamond frame.
  • a bicycle frame consists of a head tube to which the front wheel is assembled, a top tube forming the frame of the frame, a seat tube into which the down tube and seat post are inserted, a seat stay connected to the rear wheel, and a chain stay. Since the seat post is inserted into the seat tube, it is common to make the outer diameter of the seat post tube and the inner diameter of the seat tube almost identical in shape and size in order to be fixed and not shake.
  • a small-diameter tube is inserted into a large-diameter pipe, and a spring element is added to the inside of the large-diameter pipe to absorb the shock transmitted from the small-diameter pipe connected to the head. Since the diameter of the small pipe has to be smaller than the tube diameter of the seat post without suspension, the strength of the seat post is weakened, the risk of failure is increased due to the complicated structure, and the weight is increased. There is a problem that it is not.
  • a bicycle saddle is coupled, the post is movably inserted into the seat tube; and a clamp unit for connecting the seat tube and the post from the outside of the seat tube and the post, wherein the clamp unit comprises a spring part for absorbing the shock transmitted from the seat tube to the saddle.
  • the clamp unit may include a first clamp detachably coupled to the post; a second clamp detachably coupled to the seat tube; and a seating part blocking flow by the second clamp, wherein the spring part may be configured to connect the first clamp and the seating part.
  • the spring part may be formed to spirally wind the outer surface of the post.
  • the seating portion may be seated on an edge of the opening of the seat tube, and a stepped portion blocking movement of the seating portion in a direction in which the spring portion extends may be formed in the second clamp.
  • a bushing may be interposed between the inner surface of the seat tube and the outer surface of the post.
  • the bushing may include an extension, and the extension may be seated on an edge of the opening of the seat tube, and the seat may be interposed between the extension and the stepped portion.
  • the seating part and the extension part may be integrally formed.
  • the bushing may include: a first bushing forming the extension part; and a second bushing spaced apart from the first bushing and coupled to the post.
  • the clamp unit may include a first clamp detachably coupled to the post; and a second clamp detachably coupled to the seat tube, wherein the spring part may be configured to connect the first clamp and the second clamp.
  • the clamp unit connecting the seat tube and the post from the outside of the seat tube and the post absorbs the shock transmitted from the seat tube to the saddle, so that the weight is reduced and sufficient strength is formed while forming a simple structure. It is possible to provide a suspension seat post assembly comprising:
  • FIG. 1 is a cross-sectional view of a suspension seat post assembly according to a first embodiment of the present invention.
  • FIG. 2 is a state diagram of the suspension seat post assembly of FIG. 1 in use.
  • FIG 3 is a cross-sectional view of a suspension seat post assembly according to Embodiment 2 of the present invention.
  • FIG. 4 is a state diagram of the suspension seat post assembly of FIG. 3 in use.
  • FIG. 5 is a view showing a clamp unit of the suspension seat post assembly of FIG. 3 .
  • FIG. 6 is a cross-sectional view of a suspension seat post assembly according to a second embodiment of the present invention.
  • FIG. 7 is a view showing a state of use of the suspension seat post assembly of FIG. 6 .
  • FIG. 8 is a view showing a clamp unit of the suspension seat post assembly of FIG. 6 .
  • the suspension seat post assembly of the present invention is made to form sufficient strength while reducing weight and forming a simple structure.
  • FIG. 1 is a cross-sectional view of a suspension seat post assembly 10 according to Embodiment 1 of the present invention.
  • FIG. 2 is a state diagram of the suspension seat post assembly 10 of FIG. 1 in use.
  • the bicycle frame 2 is a frame forming the bicycle 1 by being combined with a steering device such as a handle and a driving device such as wheels.
  • the bicycle frame 2 usually consists of two triangles, a main triangle (hereinafter 'first triangle') formed by the handle, footrest, and saddle 3 and a triangle (hereinafter 'second triangle') formed with the rear wheel axle. Hence, it is called the diamond frame.
  • the bicycle frame 2 includes a head tube to which the front wheel is assembled, a top tube 2B and a down tube forming the skeleton of the frame 2, a seat tube 2A into which the post 120 is inserted, and a seat stay connected to the rear wheel. (2C), consisting of chainstays.
  • the first triangle and the second triangle are divided based on the seat tube 2A.
  • the suspension seat post assembly 10 according to the first embodiment of the present invention is made to absorb the shock transmitted to the saddle 3 while the bicycle 1 is running, and the seat post (100) and is configured to include a clamp unit (200).
  • the seat post 100 is configured to include a saddle coupling part 110 and a post 120 .
  • a saddle coupling part 110 and a post 120 .
  • the saddle coupling unit 110 is configured to be coupled to the saddle 3 .
  • the saddle coupling part 110 is coupled to the upper end of the post 120 . Since the saddle coupling unit 110 is a known technology as disclosed in Korean Patent Publication Nos. 2012-0130925 and 2013-0011717, a detailed description thereof will be omitted.
  • the post 120 is configured to connect the saddle 3 and the seat tube 2A.
  • the saddle 3 is coupled to the upper end of the post 120 .
  • the lower portion of the post 120 is movably inserted into the seat tube 2A.
  • the lower portion of the post 120 is inserted into the seat tube 2A through the opening of the seat tube 2A.
  • the inner diameter of the seat tube (2A) is manufactured to be larger than the outer diameter of the post (120).
  • the clamp unit 200 is configured to connect the seat tube 2A and the post 120 from the outside of the seat tube 2A and the post 120 .
  • the clamp unit 200 is configured to include a first clamp 210 , a second clamp 220 , a seating part 230 , and a spring part 240 .
  • the first clamp 210 is detachably coupled to the post 120 .
  • the first clamp 210 is configured to include a first body and a first fastening member (B).
  • the first body forms a circular ring shape with one open side.
  • the first body surrounds the outer surface of the post 120 in the circumferential direction.
  • the first fastening member (B) is coupled to the open portion of the first body.
  • the first fastening member (B) closes or widens the open portion of the first body.
  • the first fastening member B may be provided with a bolt. The user can use a tool to rotate the bolt.
  • the open portion of the first body When the bolt is rotated, the open portion of the first body is retracted or widened. When the open portion of the first body is closed, the inner surface of the first body is in close contact with the outer surface of the post 120 , and the first clamp 210 and the post 120 form a bonding force.
  • the second clamp 220 is detachably coupled to the seat tube 2A.
  • the second clamp 220 is configured to include a second body and a second fastening member (B).
  • the second body forms a circular ring shape with one side open.
  • the second body surrounds the outer surface of the seat tube 2A in the circumferential direction.
  • the second fastening member (B) is coupled to the open portion of the second body.
  • the second fastening member (B) closes or widens the open portion of the second body.
  • the second fastening member B may be provided with a bolt. The user can use a tool to rotate the bolt.
  • the open portion of the second body When the bolt is rotated, the open portion of the second body is retracted or widened. When the open portion of the second body is closed, the inner surface of the second body is in close contact with the outer surface of the seat tube 2A, and the second clamp 220 and the seat tube 2A form a bonding force.
  • the seating part 230 is configured to be seated on the edge of the opening of the seat tube 2A.
  • the seating part 230 forms a circular ring shape.
  • a stepped portion 221 is formed on the second clamp 220 .
  • the stepped portion 221 protrudes in the direction of the post 120 from the inner surface of the second body.
  • the stepped portion 221 blocks the movement of the seating portion 230 in the direction (upward) in which the spring portion 240 extends. Accordingly, the seating portion 230 is blocked from flowing by the second clamp 220 .
  • the seating portion 230 is fixed between the opening of the seat tube 2A and the stepped portion 221 even when the spring expands and contracts.
  • the spring unit 240 is configured to absorb the shock transmitted from the seat tube (2A) to the saddle (3).
  • the spring part 240 connects the first clamp 210 and the seating part 230 .
  • the first clamp 210 , the spring unit 240 , and the seating unit 230 are integrally manufactured.
  • the spring unit 240 may be manufactured in the form of a compression spring. That is, the spring part 240 may form a shape in which the outer surface of the post 120 is spirally wound between the first clamp 210 and the seating part 230 .
  • the spring unit 240 may be made of an air spring or an elastomer.
  • the spring unit 240 in a state where no load is applied to the saddle 3 , the spring unit 240 is in a state in which it is maximally extended. As shown in FIG. 2 , when a user's load is applied to the saddle 3 , the length of the post 120 inserted into the seat tube 2A increases while the spring 240 is compressed.
  • the spring 240 is expanded and contracted by the impact transmitted from the ground (frame 2) to the saddle (3).
  • the shock transmitted from the ground (frame 2 ) to the saddle 3 is dissipated.
  • a bushing may be added so that the post 120 moves smoothly within the seat tube 2A.
  • the bushing may be interposed between the inner surface of the seat tube 2A and the outer surface of the post 120 .
  • a pattern may be added to the inside of the bushing to reduce friction on the contact surface.
  • the bushing not only engineering plastics but also metal materials such as copper can be used.
  • the bushing can also be configured by adding various bearings such as ball bearings.
  • the bushing may include a first bushing 310 and a second bushing 320 .
  • the first bushing 310 includes an extension 311 .
  • the extended part 311 is formed at the upper end of the first bushing 310 .
  • the extension 311 protrudes from the outer surface of the first bushing 310 in the opposite direction to the post 120 .
  • the extended part 311 is seated on the edge of the opening of the seat tube 2A. In this case, the seating part 230 is interposed between the extended part 311 and the stepped part 221 .
  • the stepped portion 221 blocks the movement of the extension portion 311 in the direction (upward) in which the spring portion 240 extends.
  • the extended portion 311 is fixed between the opening of the seat tube 2A and the stepped portion 221 even when the spring expands and contracts.
  • a means for increasing the frictional force inside the seat tube (2A), such as spraying a liquid for increasing the frictional force in order to firmly fix the seatpost (100) inside the seat tube (2A), is also provided.
  • a bushing is added to reduce friction between the post 120 and the seat tube 2A.
  • the first bushing 310 may be manufactured integrally with the seat tube 2A of the bicycle frame 2 . In the case of the carbon monocoque type bicycle frame 2 that is widely used recently, it may be more preferable to manufacture the seat tube 2A and the first bushing 310 integrally.
  • the second bushing 320 is coupled to the lower portion of the post 120 . Accordingly, when the spring part 240 is expanded and contracted, the second bushing 320 moves together with the post 120 . When the first bushing 310 and the second bushing 320 are spaced apart, the frictional force of the bushing is minimized, and the weight increase of the bicycle 1 due to the bushing can be minimized.
  • the suspension seat post assembly 10 can implement a suspension function only with the post 120, so that the inner diameter of the post 120 is not significantly different from the inner diameter of the seat post without the conventional suspension, the post 120 ), it is easy to embed additional devices such as lights inside.
  • FIG. 3 is a cross-sectional view of the suspension seat post assembly 20 according to Embodiment 2 of the present invention.
  • 4 is a state diagram of the suspension seat post assembly 10 of FIG. 3 in use.
  • FIG. 5 is a view showing the clamp unit 200 of the suspension seat post assembly 10 of FIG. 3 .
  • the suspension seat post assembly 20 according to the second embodiment of the present invention is made to absorb the shock transmitted to the saddle 3 while the bicycle 1 is running, and the seat post (100) and is configured to include a clamp unit (200).
  • the seat post 100 is configured to include a saddle coupling part 110 and a post 120 .
  • the saddle coupling unit 110 is configured to be coupled to the saddle 3 .
  • the saddle coupling part 110 is coupled to the upper end of the post 120 . Since the saddle coupling unit 110 is a known technology as disclosed in Korean Patent Publication Nos. 2012-0130925 and 2013-0011717, a detailed description thereof will be omitted.
  • the post 120 is configured to connect the saddle 3 and the seat tube 2A.
  • the saddle 3 is coupled to the upper end of the post 120 .
  • the lower portion of the post 120 is movably inserted into the seat tube 2A.
  • the lower portion of the post 120 is inserted into the seat tube 2A through the opening of the seat tube 2A.
  • the inner diameter of the seat tube (2A) is manufactured to be larger than the outer diameter of the post (120).
  • the clamp unit 200 is configured to connect the seat tube 2A and the post 120 from the outside of the seat tube 2A and the post 120 .
  • the clamp unit 200 is configured to include a first clamp 210 , a second clamp 220 , a seating part 230 , and a spring part 240 .
  • the first clamp 210 is detachably coupled to the post 120 .
  • the first clamp 210 is configured to include a first body and a first fastening member (B).
  • the first body forms a circular ring shape with one open side.
  • the first body surrounds the outer surface of the post 120 in the circumferential direction.
  • the first fastening member (B) is coupled to the open portion of the first body.
  • the first fastening member (B) closes or widens the open portion of the first body.
  • the first fastening member B may be provided with a bolt. The user can use a tool to rotate the bolt.
  • the open portion of the first body When the bolt is rotated, the open portion of the first body is retracted or widened. When the open portion of the first body is closed, the inner surface of the first body is in close contact with the outer surface of the post 120 , and the first clamp 210 and the post 120 form a bonding force.
  • the second clamp 220 is detachably coupled to the seat tube 2A.
  • the second clamp 220 is configured to include a second body and a second fastening member (B).
  • the second body forms a circular ring shape with one side open.
  • the second body surrounds the outer surface of the seat tube 2A in the circumferential direction.
  • the second fastening member (B) is coupled to the open portion of the second body.
  • the second fastening member (B) closes or widens the open portion of the second body.
  • the second fastening member B may be provided with a bolt. The user can use a tool to rotate the bolt.
  • the open portion of the second body When the bolt is rotated, the open portion of the second body is retracted or widened. When the open portion of the second body is closed, the inner surface of the second body is in close contact with the outer surface of the seat tube 2A, and the second clamp 220 and the seat tube 2A form a bonding force.
  • the seating part 230 is configured to be seated on the edge of the opening of the seat tube 2A.
  • the seating part 230 forms a circular ring shape.
  • a stepped portion 221 is formed on the second clamp 220 .
  • the stepped portion 221 protrudes in the direction of the post 120 from the inner surface of the second body.
  • the stepped portion 221 blocks the movement of the seating portion 230 in the direction (upward) in which the spring portion 240 extends. Accordingly, the seating portion 230 is blocked from flowing by the second clamp 220 .
  • the seating portion 230 is fixed between the opening of the seat tube 2A and the stepped portion 221 even when the spring expands and contracts.
  • the spring unit 240 is configured to absorb the shock transmitted from the seat tube (2A) to the saddle (3).
  • the spring part 240 connects the first clamp 210 and the seating part 230 .
  • the first clamp 210 , the spring unit 240 , and the seating unit 230 are integrally manufactured.
  • the spring unit 240 may be manufactured in the form of a compression spring. That is, the spring part 240 may form a shape in which the outer surface of the post 120 is spirally wound between the first clamp 210 and the seating part 230 .
  • the spring unit 240 may be made of an air spring or an elastomer.
  • the spring unit 240 in a state in which no load is applied to the saddle 3 , the spring unit 240 is in a state in which it is maximally extended. 4, when a user's load is applied to the saddle 3, the length of the post 120 inserted into the seat tube 2A increases while the spring 240 is compressed.
  • the spring 240 is expanded and contracted by the impact transmitted from the ground (frame 2) to the saddle (3).
  • the shock transmitted from the ground (frame 2 ) to the saddle 3 is dissipated.
  • the first bushing 310 may be added so that the post 120 moves smoothly within the seat tube 2A.
  • the first bushing 310 may be interposed between the inner surface of the seat tube 2A and the outer surface of the post 120 .
  • the first bushing 310 is preferably made of light and excellent lubricity engineering plastic. A pattern may be added to the inside of the first bushing 310 to reduce friction on the contact surface.
  • the first bushing 310 may use a metal material such as copper as well as engineering plastic.
  • the first bushing 310 may be configured by adding various bearings such as ball bearings.
  • the first bushing 310 forms a shape extending downward from the seating part 230 . That is, compared with Example 1, Example 2 forms a form in which the seating part 230 and the extension part 311 of Example 1 are integrally formed.
  • a means for increasing the frictional force inside the seat tube (2A), such as spraying a liquid for increasing the frictional force in order to firmly fix the seatpost (100) inside the seat tube (2A), is also provided.
  • a bushing is added to reduce friction between the post 120 and the seat tube 2A.
  • the first bushing 310 may be manufactured integrally with the seat tube 2A of the bicycle frame 2 . In the case of the carbon monocoque type bicycle frame 2 that has been widely used recently, it may be more preferable to manufacture the seat tube 2A and the first bushing 310 integrally.
  • the suspension seat post assembly 20 can implement a suspension function only with the post 120, so that the inner diameter of the post 120 is not significantly different from the inner diameter of the seat post without the conventional suspension, the post 120 ), it is easy to embed additional devices such as lights inside.
  • FIG. 6 is a cross-sectional view of the suspension seat post assembly 30 according to the third embodiment of the present invention.
  • 7 is a state diagram of the suspension seat post assembly 30 of FIG. 6 in use.
  • FIG. 8 is a view showing the clamp unit 200 of the suspension seat post assembly 30 of FIG. 6 .
  • the suspension seat post assembly 30 according to the third embodiment of the present invention is made to absorb the shock transmitted to the saddle 3 while the bicycle 1 is running, and the seat post (100) and is configured to include a clamp unit (200).
  • the seat post 100 is configured to include a saddle coupling part 110 and a post 120 .
  • the saddle coupling unit 110 is configured to be coupled to the saddle 3 .
  • the saddle coupling part 110 is coupled to the upper end of the post 120 . Since the saddle coupling unit 110 is a known technology as disclosed in Korean Patent Publication Nos. 2012-0130925 and 2013-0011717, a detailed description thereof will be omitted.
  • the post 120 is configured to connect the saddle 3 and the seat tube 2A.
  • the saddle 3 is coupled to the upper end of the post 120 .
  • the lower portion of the post 120 is movably inserted into the seat tube 2A.
  • the lower portion of the post 120 is inserted into the seat tube 2A through the opening of the seat tube 2A.
  • the inner diameter of the seat tube 2A is manufactured to be larger than the outer diameter of the post 120 .
  • the clamp unit 200 is configured to connect the seat tube 2A and the post 120 from the outside of the seat tube 2A and the post 120 .
  • the clamp unit 200 is configured to include a first clamp 210 , a second clamp 220 , and a spring 240 .
  • the first clamp 210 is detachably coupled to the post 120 .
  • the first clamp 210 is configured to include a first body and a first fastening member (B).
  • the first body forms a circular ring shape with one open side.
  • the first body surrounds the outer surface of the post 120 in the circumferential direction.
  • the first fastening member (B) is coupled to the open portion of the first body.
  • the first fastening member (B) closes or widens the open portion of the first body.
  • the first fastening member B may be provided with a bolt. The user can use a tool to rotate the bolt.
  • the open portion of the first body When the bolt is rotated, the open portion of the first body is retracted or widened. When the open portion of the first body is closed, the inner surface of the first body is in close contact with the outer surface of the post 120 , and the first clamp 210 and the post 120 form a bonding force.
  • the second clamp 220 is detachably coupled to the seat tube 2A.
  • the second clamp 220 is configured to include a second body and a second fastening member (B).
  • the second body forms a circular ring shape with one side open.
  • the second body surrounds the outer surface of the seat tube 2A in the circumferential direction.
  • the second fastening member (B) is coupled to the open portion of the second body.
  • the second fastening member (B) closes or widens the open portion of the second body.
  • the second fastening member B may be provided with a bolt. The user can use a tool to rotate the bolt.
  • the open portion of the second body When the bolt is rotated, the open portion of the second body is retracted or widened. When the open portion of the second body is closed, the inner surface of the second body is in close contact with the outer surface of the seat tube 2A, and the second clamp 220 and the seat tube 2A form a bonding force.
  • a stepped portion 221 is formed on the second clamp 220 .
  • the stepped portion 221 protrudes in the direction of the post 120 from the inner surface of the second body.
  • the spring unit 240 is configured to absorb the shock transmitted from the seat tube (2A) to the saddle (3).
  • the spring unit 240 connects the first clamp 210 and the second clamp 220 .
  • the first clamp 210 , the spring unit 240 , and the second clamp 220 are integrally manufactured.
  • the spring unit 240 may be manufactured in the form of a compression spring. That is, the spring unit 240 may form a shape in which the outer surface of the post 120 is spirally wound between the first clamp 210 and the second clamp 220 .
  • the spring unit 240 may be made of an air spring or an elastomer.
  • the spring unit 240 in a state where no load is applied to the saddle 3 , the spring unit 240 is in a state in which it is maximally extended. 7, when a user's load is applied to the saddle 3, the length of the post 120 inserted into the seat tube 2A increases while the spring 240 is compressed.
  • the spring 240 is expanded and contracted by the impact transmitted from the ground (frame 2) to the saddle (3).
  • the shock transmitted from the ground (frame 2 ) to the saddle 3 is dissipated.
  • the first bushing 310 may be added so that the post 120 moves smoothly within the seat tube 2A.
  • the first bushing 310 may be interposed between the inner surface of the seat tube 2A and the outer surface of the post 120 .
  • the first bushing 310 is preferably made of light and excellent lubricity engineering plastic. A pattern may be added to the inside of the first bushing 310 to reduce friction on the contact surface.
  • the first bushing 310 may use a metal material such as copper as well as engineering plastic.
  • the first bushing 310 may be configured by adding various bearings such as ball bearings.
  • the first bushing 310 includes an extension 311 .
  • the extended part 311 is formed at the upper end of the first bushing 310 .
  • the extension 311 protrudes from the outer surface of the first bushing 310 in the opposite direction to the post 120 .
  • the extended part 311 is seated on the edge of the opening of the seat tube 2A. In this case, the extension 311 is interposed between the edge of the opening of the seat tube 2A and the stepped portion 221 .
  • the stepped portion 221 blocks the movement of the extension portion 311 in the direction (upward) in which the spring portion 240 extends.
  • the extended portion 311 is fixed between the opening of the seat tube 2A and the stepped portion 221 even when the spring expands and contracts.
  • a means for increasing the frictional force inside the seat tube (2A), such as spraying a liquid for increasing the frictional force in order to firmly fix the seatpost (100) inside the seat tube (2A), is also provided.
  • a bushing is added to reduce friction between the post 120 and the seat tube 2A.
  • the first bushing 310 may be manufactured integrally with the seat tube 2A of the bicycle frame 2 . In the case of the carbon monocoque type bicycle frame 2 that is widely used recently, it may be more preferable to manufacture the seat tube 2A and the first bushing 310 integrally.
  • the suspension seat post assembly 30 can implement a suspension function only with the post 120, so that the inner diameter of the post 120 is not significantly different from the inner diameter of the seat post without the conventional suspension, the post 120 ), it is easy to embed additional devices such as lights inside.
  • the clamp unit connecting the seat tube and the post from the outside of the seat tube and the post absorbs the shock transmitted from the seat tube to the saddle, so that the weight is reduced and sufficient strength is formed while forming a simple structure. It is possible to provide a suspension seat post assembly comprising:
  • the clamp unit connecting the seat tube and the post from the outside of the seat tube and the post absorbs the shock transmitted from the seat tube to the saddle, thereby reducing the weight and providing sufficient strength while forming a simple structure.
  • the possibility of marketing or business of the applied device, not just the use of the related technology is sufficient, as well as the degree to which it can be clearly implemented in reality, so that there is an industrial applicability It is an invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

L'invention concerne un ensemble tige de selle à suspension. L'ensemble tige de selle à suspension de la présente invention est caractérisé en ce qu'il comprend : une tige à laquelle une selle de bicyclette est accouplée et qui est insérée de manière mobile dans un tube de selle ; et une unité de serrage qui relie ensemble le tube de selle et la tige depuis l'extérieur du tube de selle et de la tige, l'unité de serrage comprenant une unité de ressort qui absorbe un choc transmis à la selle à partir du tube de selle. Par conséquent, la présente invention peut fournir un ensemble tige de selle à suspension configuré pour avoir un poids réduit, former une structure simple et avoir une résistance suffisante.
PCT/KR2020/006783 2020-05-26 2020-05-26 Ensemble tige de selle à suspension Ceased WO2021241768A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2020/006783 WO2021241768A1 (fr) 2020-05-26 2020-05-26 Ensemble tige de selle à suspension

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2020/006783 WO2021241768A1 (fr) 2020-05-26 2020-05-26 Ensemble tige de selle à suspension

Publications (1)

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WO2021241768A1 true WO2021241768A1 (fr) 2021-12-02

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PCT/KR2020/006783 Ceased WO2021241768A1 (fr) 2020-05-26 2020-05-26 Ensemble tige de selle à suspension

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5881988A (en) * 1997-09-25 1999-03-16 Kalloy Industrial Co., Ltd. Non-rotatable seat assembly
JP2005280523A (ja) * 2004-03-30 2005-10-13 Hidenori Sugiyama サドル昇降装置
KR200414130Y1 (ko) * 2006-01-31 2006-04-17 김효인 자전거의 안장 완충장치
KR20160098728A (ko) * 2015-02-11 2016-08-19 금오공과대학교 산학협력단 탈부착 가능한 시트 완충장치
KR101966376B1 (ko) * 2019-03-08 2019-04-05 김하진 자전거용 발전장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5881988A (en) * 1997-09-25 1999-03-16 Kalloy Industrial Co., Ltd. Non-rotatable seat assembly
JP2005280523A (ja) * 2004-03-30 2005-10-13 Hidenori Sugiyama サドル昇降装置
KR200414130Y1 (ko) * 2006-01-31 2006-04-17 김효인 자전거의 안장 완충장치
KR20160098728A (ko) * 2015-02-11 2016-08-19 금오공과대학교 산학협력단 탈부착 가능한 시트 완충장치
KR101966376B1 (ko) * 2019-03-08 2019-04-05 김하진 자전거용 발전장치

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