CN86203300U

CN86203300U - Plastic bicycle pedal

Info

Publication number: CN86203300U
Application number: CN 86203300
Authority: CN
Inventors: 陈天一
Original assignee: Individual
Current assignee: Chen Tianyi
Priority date: 1986-05-17
Filing date: 1986-05-17
Publication date: 1987-03-18

Abstract

The utility model discloses a plastic bicycle pedal which comprises a pedal plate, a front shaft sleeve, a shield cover, a pedal axle, a positioning check ring, an elastic check ring, a back shaft sleeve and a light reflecting plate, wherein, the pedal plate, the front shaft sleeve and the back shaft sleeve are formed by the injection molding of the engineering plastics. When the plastic bicycle pedal is in action, a sliding friction couple can be formed between the pedal plate assembly and the pedal axle, and the pedal plate assembly is positioned on the pedal axle by the positioning check ring and the elastic check ring. While in use, the plastic bicycle pedal can bear suddenly added load, and the loose structure and the shedding phenomenon are difficult to happen. The utility model has the advantages of simple structure, light weight, low cost and high durability. The utility model can be matched with various man-power pedal vehicles.

Description

Plastic bicycle pedal

The utility model relates to a kind of bicycle pedal.

Existing bicycle pedal is broadly divided into rubber axis or plastic shaft (plate) and multiple the metal mixed system and the metal construction two big classes of part in addition.The boat footrest assembly of these pedals is to connect with screw or rivet and forms; Between boat footrest assembly and the pedal axle is antifriction-bearing box, during work, constitutes rolling friction pair, and its structure belongs to miniature adjustable radial thrust ball bearing device.The axial location of the adjustment of its angle of contact and assurance, boat footrest assembly relies on the inner bearing ring of the band screw of pedal shaft end, directed back-up ring and nut to realize entirely.Therefore when work, directed back-up ring can solve basically may be because the effect that the nut that the inner bearing ring of band screw causes gets loose.But the multiple factors such as caused vibration, collision that are in operation for vehicle cause nut to get loose, and but without any assurance device, this is first defective.Next is miniature adjustable radial thrust ball bearing device proper, adds heavy lift suddenly for the reinforcing in the getting on or off the bus, advance of people, unexpected collide etc., selects this structure for use, also is inappropriate.Therefore, in use, the user often runs into: initial pedal rotates ineffective, as untimely adjustment, and then can kill, and firmly scrunches as continuing, and will cause whole boat footrest assembly by loose and come off the phenomenon of an only remaining pedal axle at last.In addition, its complex structure, by kind more than ten in addition part forms, easy break-down, labor and materials consumption is big, the cost height, Heavy Weight keeps in repair to common people and is difficult to grasp.

The purpose of this utility model, be to overcome the deficiency of prior art, provide a kind of simple in structure, durable in use, cost is low, and is in light weight, easy break-down not, for ease of maintenaince, and its contour structures, design-calculated arbitrarily, by the slip pedal of plastics and metallo-mixed system, can with the supporting use of various bicycles.

Below in conjunction with accompanying drawing the utility model is illustrated.

Brief description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a lateral plan of the present utility model.

The utility model is mainly by step tread plate (1), front shaft sleeve (2), and door (3), pedal axle (4), circlip (5), directed back-up ring (6), rear axle housing (7) and reflector (8) are formed.As depicted in figs. 1 and 2.Step tread plate (1) is to be injection molded into oblate plate integral structure with composite engineering plastics, annotate therebetween and closed the metal web frame, on the step tread plate tread, be injected with anti-slop serrations (11) and some of reinforced ribs (12) radially, and (9) six of difform through holes are arranged; Its four jiaos and a U-shaped dashpot (13) is respectively arranged; Its two middle side part respectively has an oval shape hole (10) again, for the usefulness of reflector (8) installation.Run through the centre of form of step tread plate (1), and be parallel to two treads and there is a through hole two sides, this through hole is made up of each circular port section and oblate hole section.As shown in Figure 1, from left to right; The first hole section is an oblate hole section, and the second hole section is the circular port section.This two holes section is used for assembling rear axle housing (7); The 3rd hole section is the circular port section, for passage and dressing grease; The 4th hole section is the circular port section, the 5th hole section is an oblate hole section, and this two holes section is assembling front shaft sleeve (2).Last hole section is the circular port section, and slightly anti-tapering is in order to assembling door (3).Front shaft sleeve (2) is injection molded with composite engineering plastics, has high resistance to abrasion and low friction coefficient, and its center has manhole, and the one end is a coaxial clyinder, and the other end is oblate method indigo plant.This through hole is in order to cooperate with the pedal axle.Door (3) is with the blind hole cylinder of sheet iron through cold punching, cold-press moulding, and its top is that blue its surface of mushroom method is through surface treatment.Pedal axle (4) is one, and pedal axle left end first shaft part has screw thread through hot-cured steel axle, can with the supporting use of various bicycles; Second shaft part is oblate shaft part, as the usefulness of this axle self mounting or dismounting; The third axle section is circular shaft part, cooperates with the hole of rear axle housing (7), is running-fit; The 4th shaft part is a cone transition shaft part; The 5th shaft part is circular shaft part, cooperates with the hole of front shaft sleeve (2), and also be running-fit; This shaft part end has axially and each one of positioning groove radially.Directed back-up ring (6) is the annulus of sheet iron through the cold stamping shaping, and a positioning teeth is arranged in its endoporus.Circular hole and pedal axle the 5th shaft part tip engages are running-fit in being somebody's turn to do.Its positioning teeth and the engagement of its axial location groove.During work, it and boat footrest assembly constitute sliding friction pair, also are same material injection moldeds thereby make circlip (5) rear axle housing (7) that plays the role of positioning singlely, and its planform and front shaft sleeve (2) are just the same, only the size difference.

Installation step of the present utility model is as follows: front shaft sleeve (2) and rear axle housing (7) are pushed respectively in the respective aperture section of step tread plate (1) opposite to each other, its matching relationship is an easy push fit, because all there is oblate method indigo plant the end of these two axle sleeves, and correspondingly be contained in the oblate hole section in the step tread plate (1), so guaranteed between them, can not rotate, be convenient to again change.Secondly, reflector (8) is fixed in the oval shape hole (10) of step tread plate (1) both sides.Again with pedal axle (4) from boat footrest assembly one end, pass the duct of rear axle housing (7) and front shaft sleeve (2), the other end by boat footrest assembly is inserted in directed back-up ring (6) to the end of pedal axle (4) again, push circlip (5) then to radial detents, be pressed into door (3) at last, promptly all assembling is finished.

Compared with the prior art, the utlity model has obvious advantage:

1, boat footrest assembly all is working of plastics, for injection molded. So simple in structure, in light weight, cost is low, durable in use.

2, between boat footrest assembly and the pedal axle, constitute cliding friction, during rotation, nimbly and freely, can carry and add heavy load suddenly in when work.Can not occur loosely organizedly, come off and lost efficacy.

3, the location of boat footrest assembly on the pedal axle relies on directed back-up ring (6) and circlip (4) to be stuck in the radial detents the inside and realizes, therefore can withstand shocks and vibrate and the inefficacy that can not get loose.

4, step tread plate (1) is to use injection molding, so outward appearances such as its shape, pattern, color can constantly change with market demand.

Claims

1, a kind of bicycle plastic pedal, comprise the pedal axle, reflector, circlip, directed back-up ring, door, it is characterized in that front shaft sleeve in addition, rear axle housing and spring washer, its front shaft sleeve, rear axle housing and step tread plate all form with plastic injection-moulded one, step tread plate is oblate plate structure, run through the step tread plate centre of form and be parallel to two treads and there is a through hole two sides, this through hole is made up of circular port section and oblate hole section, front shaft sleeve and rear axle are with interior cylindrical hole, front shaft sleeve is engaged in step tread plate first hole section (oblate hole section) and the second hole section (circular port section), rear axle housing is contained in the 4th hole section (circular port section) and the 5th hole section (oblate hole section), door is engaged in the circular port section of slightly anti-tapering, the pedal axle is a steel axle, it is divided into thread segment, oblate section, conical section and cylindrical segment, its cylindrical segment end has axially and radial detents, directed back-up ring is enclosed within pedal axial cylindrical section for the sheet iron annulus, directed back-up ring endoporus has a positioning teeth, its positioning teeth and the engagement of pedal axle axial location groove.

2, according to the described plastics pedal of claim 1, it is characterized in that axial anti-slop serrations is arranged on the step tread plate tread, radially some of reinforced ribs and difform through hole are respectively annotated a U-shaped dashpot for four jiaos of stretcher.