TW517674U - Improved structure for shock absorbing seat tube of bicycle - Google Patents

Description

517674 V. Creation instructions α) '—' This creation is about the improvement of a bicycle suspension seatpost structure (1), especially if an elastic element is placed inside the seatpost and a protruding mandrel L is inserted. When the bicycle vibrates due to ground bumps, the elastic element is compressed downward by the mandrel to obtain the effect of shock absorption. Soil <Conventional Technology> Bicycle suspension seatposts that have been improved according to the eye rhyme, as shown in the appendix of the June-July 89th Approval Announcement No. 399546 "Bicycle suspension seatpost structure", and The scope of the patent application of the attachment combined with the figure can be analyzed and known. Although it can achieve the support rod (3) in the seat tube body (2) has a better effect of preventing loosening and shock absorption, it still has the following defects: (1) It not only has many components and is not easy to assemble, and the molds of the buckle seat (4) and the buckle body (5) are complicated and the defect rate is high, so the manufacturing cost is relatively increased; (2) it is locked by a nut cap (6) Buckle body (5) 'Let the protrusion (5 1) of the buckle body (5) be inserted into the sleeve body (42) of the buckle seat (4), forcing the sleeve body (42) to expand, and then by the sleeve body ( 42) The concave arc groove (32) abuts against the supporting rod (3), so the supporting rod (3) receives poor political results, and is liable to loosen or move. In view of this, the creator ’s thoughts and ideas of creation ’were designed based on many years of experience. After a lot of discussions, he tried to make sample experiments, and revised and improved many times. 〈Creation purpose〉 The main purpose of this creation is to provide a bicycle pedestal to improve the overall structure and the village scholar structure (1), which not only has fewer components and is easy to assemble, but also has a simple positioning =: ^ simple, low defect rate '. Relatively lower manufacturing costs. The second purpose of this creation is to provide a kind of bicycle avoidance.

Page 4 517674 V. Creation description (2) Structural improvement (1), which uses the cone-shaped perforation of the locking cover to press down against the cool-holding piece of the positioning bush 'to make the inner edge of the positioning bush holding sheet The clamping surface can force the mandrel in a comprehensive manner, so the clamping effect of the mandrel is better, and the benefit of not being easily loosened can be achieved. <Specific implementation examples> The rest of the following is a detailed illustration of the best implementation of this creation, with the illustrations in detail. As shown in the first figure, it is a three-dimensional exploded view of this creation, which includes: a tube (10), a spindle (20 ), A positioning bushing (30), a locking cover (40), and an elastic element (50) 'wherein the inner edge of the seat tube (10) is equally divided into six longitudinal locking grooves (11), and the outer edge The upper end is provided with an externally threaded section (丨 2), the lower end of the inner edge is provided with an internally threaded section (1 3), the mandrel (2 0) is hexagonal, and the upper end is provided with a round rod section (2 1). The screw hole (2 2), the positioning bushing (30) is made of plastic material, and the inner edge is provided with a sleeve hole (3 1) corresponding to the shape of the mandrel (2 0). The upper end of the outer edge is provided with a snap flange ( 3 2), the top surface of the snap-on flange (3 2) extends equally from the bottom to the top of the six clamping pieces (3 3), and the inner edge of the six clamping pieces (3 3) is arranged with the mandrel (2 0) The clamping surface (3 3 1) corresponding to the shape, and the outer edge of the clamping surface (3 2) is equally divided into six clamping tabs (3 4) and the seat tube (1 0). The snap groove (11) corresponds to the 'lock The outer edge of the cover (40) is provided with embossing (41), and the inner edge is provided with an internal thread (4 2). The top surface is provided with a knot-shaped protruding portion (4 3), and the protruding portion (4 3 ) A cone-shaped perforation (4 4) is provided on the inner edge to communicate with the interior of the locking cover (40). As shown in the second figure, it is a sectional view of the composition of this creation. When the combination is made, the positioning bush (3 0 ) Put the sleeve hole (3 1) on the inner edge under the mandrel (2 0)

517674 V. Creation Instructions (3)

Fengyou outer edge 'and the screw (2 3) and the washer (2 4) are screwed into the inner screw hole (2 2) on the bottom surface of the mandrel (20), so that the washer (2 4) abuts against the positioning bush (30) the bottom edge, and then insert the positioning bushing (30) into the seat tube (丨 0) from the top to the bottom, so that the six locking tabs (34) on the outer edge of the positioning sleeve (30) are forced. The six snap grooves (1 1) of the inner edge of the seat tube (10) are inserted into the card and fixed, and the snap flange (3 2) of the positioning bush (30) is pressed against the seat tube (10). The upper edge 'then inserts the elastic element (50) into the seat tube (10), and sequentially inserts a set (14) and a cylinder (15), and then is screwed with a screw plug (16) Fix it to the internally threaded section 〇3) at the lower end of the inner edge of the seat tube (10) to make the elastic element (50) into a proper compression state, and then screw the locking cover (40) with its internal thread (42). Knotted to the outer threaded section (丨 2) of the seat tube (10), the oblique section of the tapered perforation (44) is forced downward and inward against the two clamping pieces (33) of the positioning bushing (30). , So that the clamping surface (331) of the inner edge of the six clamping pieces (33) clamps the core in a comprehensive manner. (20), followed by a set of tubes (25) glued to the round rod portion (21) at the upper end of the mandrel (20), and the protruding protrusion (43) of the locking cap (40). An elastic rubber sleeve (26) is set between the lower end of the speech and the speech (25), and the combination is completed.

As shown in the third figure, it is a cross-sectional view of the shock-absorbing action of this creation. When the bicycle vibrates due to the bumps on the ground, its mandrel (20) will hold a few pieces of compression elasticity (50). The elastic buffering effect generated by the compression of the element (50) absorbs vibration and impact energy to achieve the effect of shock absorption. With the structure of the above specific embodiment, the following benefits can be obtained: # :) It not only has fewer components and is easy to assemble, but also has a low mold yield of the positioning bushing (30), and the manufacturing cost is greatly reduced; (2) The tapered perforation (44) of the lid (40) returns to the clamping piece (33) of the positioning bush (30) downward, so that the clamping surface (33ι) of the inner edge of the clamping piece (33) can be obtained. Comprehensive

517674 V. Creation Note (4) The method pinches the mandrel (2 0), so the mandrel (20) receives a better effect of binding and binding, and it is not easy to produce looseness. In summary, this creation has indeed reached a breakthrough structure, with improved creative content, and at the same time, it can achieve industrial applicability and progress, and this creation has not been seen in any journals, and it is also novel. When the requirements of Article 97 and Article 98 of the Patent Law are met, a new patent application is filed in accordance with the law.

The above is only one of the preferred embodiments of this creation. When it cannot be used to limit the scope of implementation of this creation; that is, all equal changes and modifications made according to the scope of the patent application for this creation shall still belong to this creation. Within the scope of the patent.

Page 7 517674 Simple illustration of the diagram <Simplified illustration of the diagram> The first picture is a three-dimensional exploded view of this creation. The second picture: a sectional view of the composition of this creation. The third picture: the cut-away intention of the suspension action in this creation. <Illustration of drawing number>

Page 8 10 .. • · · · Seat Post 11 ... • · · Snap Grooves 12 .. • ... External Thread Section 13 ...… Internal Thread Section 14. · ____ Sleeve Body 15 ... ... Cylinder 16. ··· Screw sleeve 20 ... _. · Mandrel 21 .. · Round rod part 22…… Inner screw hole 23 .. •… Screw, wire 24…… Washer 25 ... … Sleeve 26 ... 5 Unisex rubber sleeve 30 .. • Positioning sleeve 31 · ..… through hole 32........ Against flange 33 .. Holding piece 331. _. · · Clamping face 34 ... • •• Locking tab 40 ..... • Locking cover 41 ... ... Pressed 42 .. •… Θ Thread 43 .... · .Tacking convex portion 44..... 1 perforated perforation 50... 7 ^-Sexual component attachment: It is the shadow of the Chinese Patent Publication No. 3 9 9 5 4 6.

Claims (1)

517674 VI. Scope of Patent Application (Scope of Patent Application) 1. An improved bicycle seat post structure (1), which mainly includes: a tube, a mandrel, a positioning bush, a locking cover and an elastic element, of which the seat The upper end of the outer edge of the tube is provided with an externally threaded section, the lower end of the inner edge is provided with an internally threaded section, the mandrel is polygonal, the upper end is provided with a round rod portion, and the bottom surface is provided with an internal screw hole, which is characterized by: the seat tube, the inner edge is equally divided Multiple longitudinal grooves; positioning bushing, the inner edge of which is provided with a sleeve hole corresponding to the shape of the mandrel, the upper end of the outer edge is provided with a snap flange, and the top surface of the snap flange extends equally from bottom to top A plurality of shrinking and tilting clamping pieces, and the inner edge of the plurality of clamping pieces is provided with a clamping surface corresponding to the shape of the mandrel, and the outer edge of the plurality of clamping pieces is halved by the snapping flange and the seat tube and the seat tube are equally divided. The locking groove corresponds to the locking cover. The outer edge of the locking cover is provided with embossing, the inner edge is provided with internal threads, the top surface is provided with a looping convex portion, and the inner edge of the latching convex portion is provided with a tapered perforation to communicate with the interior of the locking cover. From the above components, the positioning bush is sleeved The outer edge of the mandrel is screwed to the inner screw hole of the bottom surface of the mandrel with a screw and a washer, and the positioning bush is inserted into the upper part of the seat tube, so that the locking tabs on the outer edge of the positioning bush are forced into the card on the inner edge of the seat tube. The slot is fixed with an embedded card, and the snap-on flange of the positioning bush is pressed against the upper edge of the seat tube. Then, the elastic element is sleeved inside the seat tube to form a proper compression state, and then the locking cover is placed inside. The thread is screwed to the threaded section of the seat tube, so that the oblique cut surface of the tapered perforation downwards and inwardly presses against the clamping piece of the positioning bushing, so that the inflammation holding surface of the inner edge of the cool holding piece can be stabilized in a comprehensive manner. Hold the mandrel. Page 9 517674 Page ίο