CN2388321Y

CN2388321Y - Pulley assembly for plastic-steel sliding door and window

Info

Publication number: CN2388321Y
Application number: CN 99219300
Authority: CN
Inventors: 刘国良
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-08-17
Filing date: 1999-08-17
Publication date: 2000-07-19
Anticipated expiration: 2009-08-17

Abstract

The utility model relates to a pulley assembly for a plastic-steel sliding door/window, which is composed of a roller, a supporting seat and a roller shaft, wherein, a thin steel plate is stretched and the edge is reversely bent to form the supporting seat with a bottom in the shape of the Chinese character of 'ji' so that the diameter of the roller on the roller shaft of the supporting seat is increased to phi 26 mm. The utility model has the advantages of high strength, large roller diameter, good carrying capacity and rolling performance, intercommunication on different plastic-steel sliding door sash section bars with proper size, structure and technique, convenient fitting purchase and management for a door/window factory, less inventory and fund occupation.

Description

The slide plastics-steel door or window pulley assembly

The utility model relates to the slide unit that is used for door and window, particularly a kind of slide plastics-steel door or window pulley assembly.

The slide plastics-steel door sash material section bar that uses has two classes at present, and a class now is referred to as the A type, and its die cavity is a step trough, and the cross section behind the installation pulley assembly as shown in Figure 1.The another kind of Type B that now is referred to as, its die cavity is a flat-bottom slot, the cross section behind the installation pulley assembly is as shown in Figure 3.Pulley assembly after two classes fan material section bar is supporting has nothing in common with each other, and does not have interchangeability.With the supporting pulley assembly of A type as shown in Figure 2, the material of its bearing has zinc alloy diecasting and plastic injection-moulded two kinds, the former cost height, latter's intensity is low, because the little (d＜13mm) of the diameter of roller 1, if it is heavy when adopting the sliding bearing push-and-pull, the employing rolling bearing then diameter of needle roller (or ball) has only 1.8 millimeters of Ф 1.7～Ф, and supporting capacity is low, under no maintenance situation, long-term use is fragile, and cost is also high.If will increase the diameter of roller 1, as shown in Figure 4, the axial line of roller is moved up, install as the roller 2 of Type B shown in Figure 3.But the A section bar has only about 12.2mm because of the width C of groove, and how many roller widths can not reduce, the sidewall thickness that makes bearing bear roller shaft pressure has only about 1mm, and bar is mixed reached at the 60kg of the Heavy Weight behind the glass, and the intensity of kirsite and plastic seating is all not high enough.

The purpose of this utility model provides a kind of intensity height, rolling characteristics is good and the slide plastics-steel door or window pulley assembly of interchangeability can be arranged, and can solve the problem that exists in the background technology.

In order to achieve the above object, the technical solution adopted in the utility model is: it is by roller, bearing, and roller shaft is formed.Bottom 6 shapes of the bearing 4 of counter flange are after adopting steel sheet to stretch Shape, the roller diameter that is contained on the roller shaft of bearing increases to Ф 26mm.

Description of drawings:

Fig. 1 is the structure sectional view after A type section bar is installed pulley assembly;

Fig. 2 is an A type pulley assembly structure chart;

Fig. 3 is the structure sectional view after the Type B section bar is installed pulley assembly;

Fig. 4 is a Type B pulley assembly structure chart;

Fig. 5 is that the utility model is installed in the structure sectional view in the A type section bar;

Fig. 6 is a structure chart of the present utility model;

Fig. 7 is a lateral view of the present utility model.

The utility model will be further described below in conjunction with accompanying drawing.

As Fig. 5, Fig. 6, shown in Figure 7, the utility model is that the shape of the bottom 6 of the bearing 4 of counter flange after adopting steel sheet to stretch is

Shape, its mounting plane 7 both can be installed on the A type step trough, can be installed on the Type B flat-bottom slot again.Owing to the center of the roller 3 on the pulley spindle 5 that is contained in bearing 4 is upwards moved, make the diameter of roller 1 increase to Ф 26mm.The not only intensity height of bearing own because wall is thin, can insert in the groove of A type section bar C=12.2mm simultaneously.Roller 3 is sliding bearing or rolling bearing (needle roller or ball).Perhaps roller 3 is sliding bearing or the rolling bearing (needle roller or ball) that straight line or bus have the curved line plastics for cladding has bus.

The utility model is compared with background technology, and the useful effect that has is:

1, adopt the bearing of the rear special construction of sheet metal stretching, not only intensity height, and roller diameter increases, Bearing capacity and the rolling characteristics of roller are greatly improved, as select carbon steel sheet punching out plating zinc on surface or electrophoretic paint Deng processing, cost reduces greatly;

2, select suitable size, structure and technology, can now be referred to as at home on A, two kinds of slide plastics-steel door sash of the B material section bar general mutually, thereby made things convenient for the parts procurement and the management of door and window factory, reduce the stock and the occupation of capital.

Claims

1. slide plastics-steel door or window pulley assembly, by roller, bearing, roller shaft is formed, and it is characterized in that: adopt stretch bottom [6] shape of bearing [4] of back counter flange of steel sheet to be

Shape makes roller [3] diameter on the roller shaft [5] that is contained in bearing [4] increase to Ф 26mm.

2. slide plastics-steel door or window pulley assembly according to claim 1 is characterized in that: roller [3] is sliding bearing or rolling bearing.

3. slide plastics-steel door or window pulley assembly according to claim 1 is characterized in that: roller [3] is sliding bearing or the rolling bearing that straight line or bus have the curved line plastics for cladding has bus.