Reinforced connection mechanism between saddle and seatpost

Abstract

A reinforced connection mechanism between the saddle and seatpost, mounted on the seatpost of a bicycle, comprising the following: an axle seat which is arranged above the seat post and has a through hole running transversely through two ends, wherein a wedge recess is provided on each of two sides of the through hole, the opening of which tapers from the outside to the inside; two saddle rail clamps, each arranged on two sides of the axle seat, wherein each saddle rail clamp comprises an inner clamping element and an outer clamping element arranged opposite it, each inner clamping element having a clamping section which interacts with the corresponding wedge recess of the axle seat and further comprising an inner clamping groove and a transverse through-bore, the inner clamping groove serving for placing and holding a saddle rail of a bicycle saddle, each outer clamping element having a rail clamping recess and a transverse countersunk bore and the rail clamping recess interacting with the inner clamping groove of the corresponding inner clamping element to jointly clamp a saddle rail of the bicycle saddle; and a connecting unit comprising a screw rod, a screw sleeve and an axially elastically deformable elastic element, wherein the screw rod passes through the countersunk bore of the outer clamping element located on one side of the axle seat and through the through bore of the inner clamping element located on the same side of the axle seat, the screw sleeve passes through the countersunk bore of the outer clamping element located on the other side of the axle seat and through the through bore of the inner clamping element located on the same side of the axle seat, and the elastic element surrounds the outer circumference of the screw rod and that of the screw sleeve and is located between the inner clamping elements on two sides of the axle seat.when the screw rod is turned to screw it into the screw sleeve, each outer clamping element and the corresponding inner clamping element together clamp a saddle rail of the bicycle saddle, while when the screw rod is loosened, the inner clamping elements are pushed away from the corresponding wedge recesses of the axle seat by the elastic restoring force of the elastic element.

Description

Field of invention

[0001] The present invention relates to a mounting structure for a bicycle saddle and in particular a locking mechanism that enables quick and smooth removal of the saddle and reinforces the connection between the saddle and the seat post. State of the art

[0002] On conventional bicycles, the saddle can be attached to the seat post. For example, patent TWI775984, entitled "Bicycle Saddle Mounting Arrangement," discloses a construction mounted on a stem head component located at the upper end of a bicycle stem, the stem head component having a continuous, circular rotating surface at each of its left and right ends. The saddle mounting arrangement comprises a lower seat clamp located within the stem head component and an upper seat clamp, the upper seat clamp having a first section and a second section located on the left and right sides of the lower seat clamp, respectively.The lower seat clamp has a mounting section that is aligned with the circumferential rotating surface of the stem head component, allowing the lower seat clamp to rotate around the center of the circumferential rotating surface to enable angle adjustment. Furthermore, a receiving recess (a screw hole) is provided in the central area of ​​the lower seat clamp, with a first channel and a second channel formed on both the left and right sides of the lower seat clamp. The first section has a retaining surface, and the second section has another retaining surface, each with a hole. The first channel of the lower seat clamp is positioned opposite the retaining surface of the first section, so that the interaction of the two clamps a first seat rail of the bicycle saddle.The second channel of the lower seat clamp is positioned opposite the mounting surface of the second section, so that the interaction of the two clamps secures a second saddle rail of the bicycle saddle. The hole in the first section accommodates a first fastening element (bolt), which is screwed into the receiving recess (the screw hole) of the lower seat clamp, thus locking the first section on one side of the lower seat clamp. The hole in the second section accommodates a second fastening element (bolt), which is screwed into the receiving recess (the screw hole) of the lower seat clamp, thus locking the second section on the other side of the receiving recess. This mounts the bicycle saddle to the seat tube assembly.

[0003] However, the conventional "bicycle saddle mounting arrangement" described above has the disadvantage that the first section and the second section are only screwed together by means of the first fastening element (screw bolt) and second fastening element (screw bolt) arranged on both sides of the lower seat clamp, so that as a result of vibrations occurring during riding, the thread can be overtightened, which leads to a loosening of the screw connection.

[0004] Patent TW M489805, entitled "Clamping Device for a Bicycle Support Bar," discloses a device comprising a support bar, a clamping arrangement mounted on the support bar, and a clamping arrangement for mounting and connecting a pair of saddle rails of a bicycle saddle. A head section is provided at the upper end of the support bar, the head section having a transverse through-hole. An inner upper portion of the transverse through-hole is recessed upwards to form a positioning recess. A clamping recess is formed in the head section below the transverse through-hole, and the head section further comprises an insertion bore extending through the rear circumferential surface of the head section and a connecting bore that is fully connected to a lower half of the circumferential surface of the transverse through-hole.The clamping assembly is fitted into a clamping block groove via the insertion bore and comprises two V-shaped clamping blocks and a clamping screw. Each of the two clamping blocks has a rough contact surface and is connected to each other by means of the clamping screw. The clamping assembly includes two symmetrical clamping seats, each with a corresponding clamping cover, and two preload springs, each attached to the corresponding clamping cover. A fastening screw passes through one of the preload springs and through a through-hole in one of the clamping seats. One end of each preload spring rests against the spring receptacle of the corresponding clamping cover, while the other end rests firmly against the washer mounted on the fastening screw.A threaded sleeve on the other side of the head is passed through the other washer, the other preload spring, and the other clamping seat, and screwed to the bolt shank of the fastening screw. First, the two clamping seats of the clamping assembly are clamped together by means of the contact surfaces of the two clamping blocks. Then, the fastening screw is passed through one of the preload springs and through the through-hole of a clamping seat, with one end of each preload spring resting against the spring receptacle of the corresponding clamping cover and the other end resting tightly against the washer on the fastening screw.The screw sleeve located on the other side of the head is passed through the other washer, the other preload spring and the other clamping seat and then screwed to the bolt shaft of the fastening screw, so that the rail clamping recess of the clamping cover and the rail clamping recesses of the clamping seats together clamp the saddle rails of the bicycle saddle.

[0005] The conventional “clamping device for a bicycle support bar” described above has the disadvantage that the number of components is too large, which not only leads to a time-consuming and cumbersome assembly, but also causes comparatively high manufacturing and processing costs, thereby significantly impairing competitiveness on the market. Content of the invention

[0006] The main object of the present invention is to provide an axle seat arranged above the seat post with wedge recesses which interact with the clamping section of the inner clamping elements of the corresponding saddle rail clamps, so that when tightening a screw rod with a screw sleeve, the clamping sections of the inner clamping elements lie close to the corresponding wedge recesses and connect tightly to them, thereby increasing the connection strength of the bicycle saddle to the seat post.

[0007] Another object of the present invention is to ensure that, when removing a bicycle saddle, the saddle rail clamps are pressed outwards by means of the elastic element of a connecting unit, in order to enable quick removal of the saddle.

[0008] A further objective of the present invention is to keep the number of components low and to design the structure simply in order to make operation easier for the user and at the same time to reduce manufacturing costs.

[0009] To solve the aforementioned problems, the present invention provides a reinforced connection mechanism between the saddle and the seatpost, which is mounted on the seatpost of a bicycle and comprises an axle seat, two saddle rail clamps, and a connecting unit. The axle seat is arranged above the seatpost and has a through-hole extending transversely through two ends, with a wedge recess provided on each of the two sides of the through-hole, the opening of which tapers from the outside inwards. The two saddle rail clamps are arranged on each of the two sides of the axle seat, each saddle rail clamp comprising an inner clamping element and an outer clamping element arranged opposite it.Each inner clamping element has a clamping section that interacts with the corresponding wedge recess of the axle seat and further comprises an inner clamping groove and a transverse through-hole, the inner clamping groove serving to support and hold a saddle rail of a bicycle saddle. Each outer clamping element has a rail clamping recess and a transverse countersunk hole, the rail clamping recess interacting with the inner clamping groove of the corresponding inner clamping element to jointly clamp a saddle rail of the bicycle saddle.The connecting unit comprises a screw rod, a screw sleeve, and an axially elastically deformable element. The screw rod passes through the countersunk bore of the outer clamping element located on one side of the axle seat and through the through-bore of the inner clamping element located on the same side of the axle seat. The screw sleeve passes through the countersunk bore of the outer clamping element located on the other side of the axle seat and through the through-bore of the inner clamping element located on the same side of the axle seat. The elastic element surrounds the outer circumference of the screw rod and the screw sleeve and is located between the inner clamping elements on both sides of the axle seat.When the screw rod is turned to screw it onto the screw sleeve, a respective outer clamping element and the corresponding inner clamping element together clamp a saddle rail of the bicycle saddle, while when the screw rod is loosened, the inner clamping elements are pushed away from the corresponding wedge recesses of the axle seat by the elastic restoring force of the elastic element.

[0010] In one embodiment, the outer contour of the clamping section of a respective inner clamping element is wedge-shaped and adapted to the shape of the corresponding wedge recess.

[0011] In one embodiment, each inner clamping element has a pressure-receiving surface which extends obliquely downwards from the outer edge of the corresponding inner clamping groove in the direction of the corresponding clamping section, wherein each outer clamping element has a pressing section facing the corresponding pressure-receiving surface, so that when the screw rod is turned to screw it to the screw sleeve, each pressing section firmly presses the corresponding pressure-receiving surface against it.

[0012] In one embodiment, each through-bore has a larger diameter on the side facing the axle seat than on the side facing away from the axle seat, so that a contact surface is formed, with one end of the elastic element pressing firmly against the contact surface of the inner clamping element located on one side of the axle seat and the other end pressing against the contact surface of the inner clamping element located on the other side of the axle seat.

[0013] In one embodiment, the countersunk bore of each outer clamping element comprises an inner bore and an outer bore, wherein the diameter of the inner bore is smaller than the diameter of the outer bore, so that a stop wall is formed between the inner bore and the outer bore. An end section of the screw rod has a first head section whose diameter is larger than the outer diameter of the shank of the screw rod, so that a first clamping wall is formed between the first head section and the shank of the screw rod.The first head section engages in the outer bore of the countersunk bore of the outer clamping element located on one side of the axle seat, with the shank of the screw rod passing through the inner bore of the countersunk bore of the outer clamping element located on the same side of the axle seat, as well as through the through bore of the inner clamping element located on the same side of the axle seat. When the screw rod is rotated to screw into the threaded sleeve, the first clamping wall of the screw rod presses against the stop wall of the outer clamping element located on the same side of the axle seat.

[0014] In one embodiment, the screw sleeve has a second head section whose diameter is larger than the outer diameter of the screw sleeve, so that a second clamping wall is formed between the screw sleeve and the second head section. The second head section of the screw sleeve engages in the outer bore of the countersunk bore of the outer clamping element located on the other side of the axle seat, with the screw sleeve passing through the inner bore of the countersunk bore of the outer clamping element located on the other side of the axle seat and through the through-bore of the inner clamping element located on the other side of the axle seat. The second clamping wall of the screw sleeve presses against the stop wall of the outer clamping element located on the other side of the axle seat.

[0015] In one embodiment, the elastic element is designed as a spring.

[0016] The technical structure of the present invention has the following advantages:

[0017] In the present invention, the axle seat located above the bicycle seat post has a wedge recess on each of its opposite sides. When the screw rod is turned to screw it to the screw sleeve, the wedge-shaped clamping sections of the inner clamping elements are pressed firmly against the corresponding wedge recesses of the axle seat. By screwing the screw rod to the screw sleeve, each inner clamping element and the corresponding outer clamping element can firmly press a saddle rail of the bicycle saddle against it, thereby further increasing the connection strength of the bicycle saddle to the seat post.

[0018] To remove the bicycle saddle, the screw rod can be loosened, releasing the outer clamping elements, whereby the elastic element, due to its elastic restoring force, pushes the inner clamping elements away from the axle seat, thus enabling easy and quick removal of the bicycle saddle.

[0019] When the screw rod is turned to engage the screw sleeve, the first clamping wall of the screw rod presses against the stop wall of the corresponding outer clamping element, so that this outer clamping element fits snugly against the corresponding inner clamping element and presses the clamping section of this inner clamping element firmly into the corresponding wedge recess of the axle seat. Simultaneously, the corresponding inner clamping groove and the rail clamping recess of this outer clamping element together clamp a saddle rail of the bicycle saddle, with the pressing section of this outer clamping element also firmly pressing the pressure-bearing surface of the corresponding inner clamping element against it.The two ends of the elastic element are pressed together by the contact surfaces of the inner clamping elements located on two sides of the axle seat and are in a compressed state, effectively preventing the screw sleeve and the screw rod from loosening due to vibrations while driving on uneven roads.

[0020] In comparison to the prior art, the present invention has a smaller number of components and a simpler structure, which significantly reduces manufacturing costs and improves competitiveness. Brief description of the drawings Fig. Figure 1 shows an illustration in which the embodiment of the present invention is combined with a bicycle saddle; Fig. 2 shows a perspective view according to an embodiment of the present invention in the assembled state; Fig. Figure 3 shows an exploded view according to the embodiment of the present invention; Fig. 4 shows a sectional view according to the embodiment of the present invention; Fig. Figure 5 shows a schematic view according to the embodiment of the present invention. Detailed description of the exemplary embodiment

[0021] To enable a better understanding of the technical means and the functional sequence of the present invention, an exemplary embodiment is described in detail below with reference to the drawings.

[0022] It will be directed to the Fig. 1, Fig. 2, Fig. 3 to Fig. Reference is made to Figure 4, which shows a preferred embodiment of the reinforced connection mechanism between the saddle and the seat post 100 according to the invention, which is mounted on the seat post 110 of a bicycle. The reinforced connection mechanism between the saddle and the seat post 100 comprises an axle seat 10 arranged above the seat post 110, two saddle rail clamps 20, and a connecting unit 30. The axle seat 10 has a transverse through-hole 11, wherein a wedge recess 111 is provided on each of the left and right sides of the through-hole 11, which has a wedge-shaped structure, the opening of which gradually tapers from the outside to the inside.

[0023] Each saddle rail clamp 20 comprises an inner clamping element 21 and an outer clamping element 22 arranged opposite it. Each inner clamping element 21 has a wedge-shaped clamping section 211 in the direction of the corresponding wedge recess 111 of the axle seat 10, the outer contour of which is adapted to the corresponding wedge recess 111 of the axle seat 10. On the side facing away from the corresponding wedge recess 111, each inner clamping element 21 has an inner clamping groove 212 and a pressure-bearing surface 213, wherein each inner clamping groove 212 serves to place and hold a saddle rail 210 of a bicycle saddle 200, and each pressure-bearing surface 213 extends obliquely downwards from the outer edge of the corresponding inner clamping groove 212 in the direction of the corresponding clamping section 211.Furthermore, each inner clamping element 21 has a transverse through-bore 214, wherein the diameter of the through-bore 214 on the side facing the axle seat 10 is larger than the diameter of the through-bore 214 on the side facing away from the axle seat 10, so that a contact surface 215 is formed at the through-bore 214.

[0024] Each outer clamping element 22 has a rail clamping recess 221 and a transverse countersunk bore 222 in the direction of the corresponding inner clamping element 21, wherein each rail clamping recess 221 is designed as an inwardly directed recess facing the outside of the saddle rail 210 of the bicycle saddle 200. Each countersunk bore 222 comprises an inner bore 223 and an outer bore 224, wherein the diameter of the inner bore 223 is smaller than the diameter of the outer bore 224, so that a stop wall 225 is formed between the inner bore 223 and the outer bore 224. Furthermore, each outer clamping element 22 is provided with a press section 226 at a position facing the pressure-bearing surface 213 of the corresponding inner clamping element 21.

[0025] The connecting unit 30 comprises a screw rod 31, a screw sleeve 32, and an axially elastically deformable elastic element 33 (for example, a spring), wherein the elastic element 33 is arranged between the inner clamping elements 21 on two sides of the axle seat 10. In the present embodiment, an end section of the screw rod 31 has a first head section 35, the diameter of which is larger than the outer diameter of the shaft 34 of the screw rod 31, so that a first clamping wall 36 is formed between the first head section 35 and the shaft 34 of the screw rod 31.The first head section 35 engages in the outer bore 224 of the countersunk bore 222 of the outer clamping element 22 located on one side of the axle seat 10, wherein the shaft 34 of the screw rod 31 is passed through the inner bore 223 of the countersunk bore 222 of the outer clamping element 22 located on one side of the axle seat 10 and through the through bore 214 of the inner clamping element 21 located on one side of the axle seat 10, wherein the first clamping wall 36 of the screw rod 31 presses against the stop wall 225 of this outer clamping element 22 and the elastic element 33 is arranged around the outer circumference of the shaft 34 of the screw rod 31. The screw sleeve 32 has a second head section 37, the diameter of which is larger than the outer diameter of the screw sleeve 32, so that a second clamping wall 38 is formed between the screw sleeve 32 and the second head section 37.The second head section 37 of the screw sleeve 32 engages in the outer bore 224 of the countersunk bore 222 of the outer clamping element 22 located on the other side of the axle seat 10, the screw sleeve 32 passing through the inner bore 223 of the countersunk bore 222 of the outer clamping element 22 located on the same side of the axle seat 10 and through the through bore 214 of the inner clamping element 21 located on the same side of the axle seat 10, and being screwed to the threaded rod 31. The second clamping wall 38 of the screw sleeve 32 presses against the stop wall 225 of the outer clamping element 22 located on the same side of the axle seat 10, the elastic element 33 being arranged around the outer circumference of the screw sleeve 32.One end of the elastic element 33 rests firmly against the contact surface 215 of the inner clamping element 21 located on one side of the axle seat 10, while the other end rests firmly against the contact surface 215 of the inner clamping element 21 located on the other side of the axle seat 10.

[0026] Due to the structure described above, assembly is carried out as follows: It is applied to the Fig. 1, Fig. 3 and Fig. 4. Reference is made to the screw rod 31. First, the screw rod 31 is passed through the countersunk bore 222 of the outer clamping element 22 located on one side of the axle seat 10, and then through the through bore 214 of the inner clamping element 21 located on the same side, as well as through the elastic element 33. Next, the clamping section 211 of this inner clamping element 21 is inserted into the wedge recess 111 located on the same side of the axle seat 10, so that this outer clamping element 22 and this inner clamping element 21 are opposite each other.The screw sleeve 32 is then passed through the countersunk bore 222 of the outer clamping element 22 located on the other side of the axle seat 10, and through the through bore 214 of the inner clamping element 21 located on the same side, and then through the elastic element 33, whereby the clamping section 211 of the inner clamping element 21 located on the same side of the axle seat 10 is inserted into the wedge recess 111 located on the same side of the axle seat 10. Subsequently, one end of the elastic element 33 rests against the contact surface 215 of the inner clamping element 21 located on one side of the axle seat 10, while the other end of the elastic element 33 rests against the contact surface 215 of the inner clamping element 21 located on the other side of the axle seat 10.The saddle rails 210, located below the bicycle saddle 200, are then inserted into the inner clamping grooves 212 of the corresponding inner clamping elements 21. When the screw rod 31 is turned to screw it to the screw sleeve 32, the rail clamping recesses 221 of the outer clamping elements 22 and the inner clamping grooves 212 of the inner clamping elements 21 on two sides of the axle seat 10 interact to clamp the saddle rails 210 of the bicycle saddle 200.

[0027] The present invention has at least the following advantages:

[0028] In the present invention, the axle seat 10 located above the seat post 110 of the bicycle has a wedge recess 111 on each of two sides. When the screw rod 31 is turned to screw the shaft 34 to the screw sleeve 32, the wedge-shaped clamping sections 211 of the inner clamping elements 21 are pressed firmly against the corresponding wedge recess of the axle seat 10. By screwing the screw rod 31 to the screw sleeve 32, a respective inner clamping element 21 and the corresponding outer clamping element 22 can firmly press a saddle rail 210 of the bicycle saddle 200, thereby further increasing the connection strength of the bicycle saddle 200 to the seat post 110, as shown in the Fig. 1 and Fig. 4 shown.

[0029] To remove the bicycle saddle 200, the screw rod 31 can be loosened, releasing the outer clamping elements 22. The elastic element 33, due to its elastic restoring force, automatically pushes the inner clamping elements 21 away from the axle seat 10, thus enabling easy and quick removal of the bicycle saddle 200, as shown in the Fig. 1, Fig. 4 and Fig. 5 shown.

[0030] When the screw rod 31 is turned to screw it to the screw sleeve 32, the first clamping wall 36 of the screw rod 31 presses against the stop wall 225 of the corresponding outer clamping element 22, so that this outer clamping element 22 rests tightly against the corresponding inner clamping element 21 and presses the clamping section 211 of this inner clamping element 21 firmly into the corresponding wedge recess 111 of the axle seat 10. At the same time, the corresponding inner clamping groove 212 and the rail clamping recess 221 of this outer clamping element 22 together clamp a saddle rail 210 of the bicycle saddle 200, with the pressing section 226 of this outer clamping element 22 also firmly pressing the pressure-bearing surface 213 of the corresponding inner clamping element 21.The two ends of the elastic element 33 are pressed together by the contact surfaces 215 of the inner clamping elements 21 located on two sides of the axle seat 10 and are in a compressed state, which effectively prevents the screw sleeve 32 and the screw rod 31 from loosening as a result of vibrations during driving on uneven roads.

[0031] In comparison to the prior art, the present invention has a smaller number of components and a simpler structure, which significantly reduces manufacturing costs and improves competitiveness.

[0032] The foregoing description represents only one embodiment of the invention and is not intended to limit the scope of the claims. All equivalent changes and modifications that can be made by a person skilled in the art in this field according to the description and drawings of the invention are within the scope of protection of the present invention. Reference symbol list 100 reinforced connection mechanism between saddle and seatpost 110 seatpost 200 bicycle saddles 210 saddle rail 10 axle seat 11 Through hole 111 Wedge recess 20 saddle rail clamps 21 inner clamping element 211 Span section 212 inner clamping groove 213 pressure-bearing area 214 Through hole 215 m² of plant area 22 outer clamping element 221 Rail clamping recess 222 Countersink 223 Internal bore 224 External bore 225 Stop wall 226 Press section 30 connection unit 31 screw rod 32 screw sleeve 33 elastic element 34 shaft 35 first head section 36 first tension wall 37 second head section 38 second tension wall QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] TW M489805

[0004]

Claims

A reinforced connection mechanism between the saddle and the seatpost, mounted on the seatpost of a bicycle, comprising: an axle seat located above the seatpost and having a through-hole extending transversely through two ends, wherein a wedge recess is provided on each of two sides of the through-hole, the opening of which tapers from the outside inwards; two saddle rail clamps, each arranged on two sides of the axle seat, wherein each saddle rail clamp comprises an inner clamping element and an outer clamping element arranged opposite it, each inner clamping element having a clamping section which interacts with the corresponding wedge recess of the axle seat and further comprising an inner clamping groove and a transverse through-hole, the inner clamping groove serving to place and hold a saddle rail of a bicycle saddle.a respective outer clamping element having a rail clamping recess and a transverse countersunk bore, and the rail clamping recess cooperating with the inner clamping groove of the corresponding inner clamping element to jointly clamp a saddle rail of the bicycle saddle; and a connecting unit comprising a screw rod, a screw sleeve and an axially elastically deformable elastic element, wherein the screw rod passes through the countersunk bore of the outer clamping element located on one side of the axle seat and through the through bore of the inner clamping element located on the same side of the axle seat,The screw sleeve passes through the countersunk bore of the outer clamping element located on the other side of the axle seat and through the through bore of the inner clamping element located on the same side of the axle seat, and the elastic element surrounds the outer circumference of the screw rod and that of the screw sleeve and is located between the inner clamping elements on two sides of the axle seat, wherein when the screw rod is turned to screw it to the screw sleeve, each outer clamping element and the corresponding inner clamping element together clamp a saddle rail of the bicycle saddle, while when the screw rod is loosened, the inner clamping elements are pushed away from the corresponding wedge recesses of the axle seat by the elastic restoring force of the elastic element. Reinforced connection mechanism between saddle and seat post according to claim 1, wherein the outer contour of a respective clamping section is wedge-shaped and adapted to the shape of the corresponding wedge recess. Reinforced connection mechanism between saddle and seatpost according to claim 1, wherein a respective inner clamping element has a pressure-receiving surface which extends obliquely downwards from the outer edge of the corresponding inner clamping groove in the direction of the corresponding clamping section, wherein a respective outer clamping element has a pressing section facing the corresponding pressure-receiving surface, such that when the screw rod is turned to screw it to the screw sleeve, a respective pressing section firmly presses the corresponding pressure-receiving surface against it. Reinforced connection mechanism between saddle and seat post according to claim 1, wherein a respective through-bore on the side facing the axle seat has a larger diameter than on the side facing away from the axle seat, so that a contact surface is formed, wherein one end of the elastic element presses firmly against the contact surface of the inner clamping element located on one side of the axle seat and the other end against the contact surface of the inner clamping element located on the other side of the axle seat. Reinforced connection mechanism between saddle and seatpost according to claim 1, wherein the countersunk bore of a respective outer clamping element comprises an inner bore and an outer bore, wherein the diameter of the inner bore is smaller than the diameter of the outer bore, such that a stop wall is formed between the inner bore and the outer bore, wherein an end section of the screw rod has a first head section whose diameter is larger than the outer diameter of the shaft of the screw rod, such that a first clamping wall is formed between the first head section and the shaft of the screw rod.wherein the first head section engages in the outer bore of the countersunk bore of the outer clamping element located on one side of the axle seat and the shank of the screw rod passes through the inner bore of the countersunk bore of the outer clamping element located on the same side of the axle seat and through the through bore of the inner clamping element located on the same side of the axle seat, wherein when the screw rod is turned to screw it to the screw sleeve, the first clamping wall of the screw rod presses against the stop wall of the outer clamping element located on the same side of the axle seat. Reinforced connection mechanism between saddle and seatpost according to claim 5, wherein the screw sleeve has a second head section whose diameter is larger than the outer diameter of the screw sleeve, such that a second clamping wall is formed between the screw sleeve and the second head section, wherein the second head section of the screw sleeve engages in the outer bore of the countersunk bore of the outer clamping element located on the other side of the axle seat, the screw sleeve passes through the inner bore of the countersunk bore of the outer clamping element located on the other side of the axle seat and through the through bore of the inner clamping element located on the other side of the axle seat, and the second clamping wall of the screw sleeve presses against the stop wall of the outer clamping element located on the other side of the axle seat. Reinforced connection mechanism between saddle and seat post according to claim 1, wherein the elastic element is designed as a spring.

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