CN2299644Y

CN2299644Y - flat treadmill rear roller

Info

Publication number: CN2299644Y
Application number: CN 97214702
Authority: CN
Inventors: 刘进山
Original assignee: Jinchang Enterprise Co ltd
Current assignee: Jinchang Enterprise Co ltd
Priority date: 1997-05-04
Filing date: 1997-05-04
Publication date: 1998-12-09
Anticipated expiration: 2007-05-04

Abstract

The utility model relates to a dull and stereotyped treadmill rear roll, including the cylinder, locate the bearing positioning seat at this cylinder both ends and set firmly in the bearing of bearing positioning seat, the both ends punishment of its cylinder hole do not is formed with the several caulking grooves, is equipped with the abaculus that can correspond the block with the caulking groove on the bearing positioning seat, consequently, this dull and stereotyped treadmill rear roll simple structure and processing and equipment are convenient fast.

Description

Dull and stereotyped treadmill back roll

The utility model relates to a kind of dull and stereotyped treadmill back roll, refers to especially a kind ofly assemble back roll quickly and easily in order to drive belt and processing simple in structure on dull and stereotyped treadmill.

The outward appearance kenel or the functional item of existing treadmill have many types, but its basic structure is all roughly the same, be the overall appearance schematic diagram of dull and stereotyped treadmill as shown in Figure 1, it mainly comprises the pedestal 10 of tool one flat board 12, be provided with a handrail 11 in its front end, and respectively be provided with a front roll 20 and back roll 30 at dull and stereotyped 12 forward and backward two ends, wherein between front roll 20 and the back roll 30 and be arranged with belt 40, trample use for the runner.

Referring to shown in Figure 5, the back roll 90 of classic flat-plate treadmill is made up of cylinder 91, two bearings positioning seat 92 and bearing 93 and the axle 94 of a hollow, one side edge place of its middle (center) bearing positioning seat 92 is formed with flange 921, but opposite side then forms the braking edge 922 of clip in cylinder 91 endoporus 911, bearing positioning seat 92 central authorities are provided with axis hole 924, and be formed with bearing block 923 near flange 921 1 sides, and bearing 93 covers can be fixed in the bearing block 923, and then axle 94 is worn in the endoporus that is fixed in bearing 93.

There is shortcoming in this traditional back roll structure in design, not only improve manufacturing cost and reduce the market competitiveness relatively, and its shortcoming is described as follows:

(1) output can't improve: traditional its cylinder of back roll structure is to make with metal material, must be with processing equipment machine-shaping, and also to do the attrition process and the coating on surface after the machine-shaping again, not only complicated the and relative speed of production of Jia Gong operation also is subjected to certain restriction.

(2) assembling is time-consuming: and during the assembling of bearing positioning seat and cylinder, it is that the braking edge gluing of bearing positioning seat is sticked in the endoporus of cylinder, then also must impose reducing on the cylinder in its outside and process, and can finish the assembling of back roll, and is very inconvenient.

(3) gummed of different materials is bad: because traditional cylinder is to make with metal material, the bearing positioning seat then is a plastic material, when the gluing of two bearings positioning seat is sticked in the cylinder, because it is two kinds of different materials, so gummed property is relatively poor.

In view of this, the design people is the dull and stereotyped treadmill back roll of design the utility model, and using provides a kind of simple in structure and processing and assemble practicality structure quickly and easily.

The main purpose of the utility model design is: a kind of simple in structure and processing and the dull and stereotyped quickly and easily treadmill back roll of assembling are provided.

The technical solution of the utility model is to provide a kind of dull and stereotyped treadmill back roll, it includes cylinder, the bearing positioning seat, member such as bearing and axle, the bearing positioning seat is the periphery ora terminalis place of a side wherein, be formed with the bigger flange of external diameter, central authorities then are provided with axis hole, and axis hole is formed with the bearing block that can set firmly bearing near flange one side, the two ends of axle fasten in the bearing in bearing block, it is characterized in that: cylinder central authorities are the hole wall place, two ends of the endoporus that runs through, all be formed with several axial caulking grooves, the outer peripheral edges of bearing positioning seat are formed with several and are abaculus corresponding and that can engage mutually with caulking groove in the cylinder endoporus.

In above-mentioned dull and stereotyped treadmill back roll, cylinder can be provided with bearing block and axis hole in an end wherein, it is formed as with the setting of bearing positioning seat one;

And, also can be provided with the lines that is staggered on the outer peripheral surface of cylinder.

The utility model compared with the prior art advantage and good effect is very obvious.By above technical scheme as can be known, the dull and stereotyped treadmill back roll of the utility model can have advantage as described below:

(1) simple and convenient assembly: be to assemble between bearing positioning seat and cylinder in the mode of packing fit, and the mutual clip by abaculus on caulking groove in the cylinder endoporus and the bearing positioning seat cooperates, can make bearing positioning seat and cylinder closely fixed, compared to traditional structure in the bearing positioning seat and after the cylinder fit, must can guarantee fixing more between the two through reducing processing, the utility model not only can be assembled more apace and finish, and also very convenient in the assembling.

(2) moulding is quick, production efficiency is high: the utility model is to form with plastic injection-moulded, weight is light than the traditional structure of metal material, and be more suitable for a large amount of productions, not only saved cost of transportation, and the utility model is after moulding, need not grind again or surface treatment such as coating, can increase productivity greatly, also remove antirust cost from.

Further specify specific structural features of the present utility model and purpose below in conjunction with accompanying drawing.

Brief Description Of Drawings:

Fig. 1 is the overall appearance schematic diagram of dull and stereotyped treadmill.

Fig. 2 is the decomposing schematic representation of the dull and stereotyped treadmill back roll of the utility model one embodiment.

Fig. 3 is that schematic diagram cuts open in the office of the dull and stereotyped treadmill back roll of the utility model one embodiment.

Fig. 4 is the schematic diagram of another embodiment of the dull and stereotyped treadmill back roll of the utility model.

Fig. 5 is the floor map of traditional structure.

The utility model relates to a kind of dull and stereotyped treadmill back roll, shown in Figure 1 is the schematic appearance of dull and stereotyped treadmill, wherein pedestal 10 front ends are provided with handrail 11, the top is provided with a flat board 12, dull and stereotyped 12 forward and backward two ends respectively are provided with a front roll 20 and back roll 30, and in front roll 20, dull and stereotyped 12 and the periphery of back roll 30 around a belt 40, the usefulness of trampling when running for the user.

Referring to shown in Figure 2, back roll 30 of the present utility model is made up of members such as a cylinder 31, two bearings positioning seat 32, bearing 33 and axles 34, its intermediate roll 31 is the pipe shapes that are hollow, and its central authorities are the hole wall place of running through, endoporus 311 two ends, all is formed with several axial caulking grooves 312; Bearing positioning seat 32 is the periphery ora terminalis place of a side wherein, be formed with the bigger flange of an external diameter 321, opposite side then is formed with several can be corresponding abaculus 322 with the caulking groove 312 in the endoporus 311 of cylinder 31, bearing positioning seat 32 central authorities also are provided with axis hole 323, and axis hole 323 is formed with a bearing block 324 (see figure 3)s near a side of flange 321.

Referring to shown in Figure 3, earlier with axle 34 by penetrating in the cylinder 31, again bearing 33 is fixed in the bearing block 324 of bearing positioning seat 32, and the two ends that make axle 34 fasten in the bearing 33 in bearing block 324, and make the abaculus 322 that is provided with on the bearing positioning seat 32 simultaneously, be tight fit and be coated with sticker and be fixedly arranged in the caulking groove 312 of cylinder 31, and make flange 321 on the bearing positioning seat 32 be resisted against the two end faces of cylinder 31.

Referring again to Fig. 4, it is a kind of embodiment schematic diagram of back roll 50, and cylinder 51 also can directly be provided with bearing block 511 and axis hole 512 in an end wherein, and the endoporus 513 hole wall places of the other end then are formed with several axial caulking grooves 514; Bearing positioning seat 52 is the periphery ora terminalis place of a side wherein, be formed with the bigger flange of an external diameter 521, the other end then is formed with several can be corresponding abaculus 522 with the caulking groove 514 in the endoporus 513 of cylinder 51, bearing positioning seat 52 central authorities are provided with the axis hole 523 that can wear axle 54, and axis hole 523 is formed with the bearing block 524 that can install bearing 53 near a side of flange 521.

In addition, on the surface of the outer peripheral edges of cylinder 31, also can be provided with the lines that is staggered, in order to increase the frictional force of 40 of itself and belts.

Claims

1. dull and stereotyped treadmill back roll, include cylinder, the bearing positioning seat, member such as bearing and axle, the bearing positioning seat is the periphery ora terminalis place of a side wherein, be formed with the bigger flange of external diameter, central authorities then are provided with axis hole, and axis hole is formed with the bearing block that can set firmly bearing near flange one side, the two ends of axle fasten in the bearing in bearing block, it is characterized in that: cylinder central authorities are the hole wall place, two ends of the endoporus that runs through, all be formed with several axial caulking grooves, the outer peripheral edges of bearing positioning seat are formed with several and are abaculus corresponding and that can engage mutually with caulking groove in the cylinder endoporus.

2. dull and stereotyped treadmill back roll according to claim 1 is characterized in that: its intermediate roll is provided with bearing block and axis hole in an end wherein, it is formed as with the setting of bearing positioning seat one.

3. dull and stereotyped treadmill back roll according to claim 1 is characterized in that: also can be provided with the lines that is staggered on the outer peripheral surface of its intermediate roll.