CN2486031Y

CN2486031Y - Low noise guide rail

Info

Publication number: CN2486031Y
Application number: CN 01240718
Authority: CN
Inventors: 李绍汉
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-06-01
Filing date: 2001-06-01
Publication date: 2002-04-17
Anticipated expiration: 2011-06-01

Abstract

The utility model provides a rail with low noise, being a mechanism rail of the drawer, comprising a movable rail, a fixed rail, a roller and a rivet shaft, wherein, the movable rail and fixed rail are both provided with bosses and the roller is respectively riveted on the movable rail and the boss of the fixed rail by use of the rivet shaft; moreover, gaskets are respectively arranged between the movable rail, the fixed rail and the roller, the rivet shaft is in a ladder shape, with a large ladder part being the large step shaft with a length a larger than the length b of the roller. The utility model has the advantages of good manufacturability, smooth and stable moving, high precision, even clearance, small flexible friction abrasion and low noise, being applicable to all drawer rails.

Description

Low noise guide rail

The utility model relates to a kind of mechanical guide rail, especially a kind of mechanical guide rail of drawer.

The guide rail of drawer use at present, its roller directly is riveted on the boss of guide rail by rivet shaft, because the boss of guide rail is by being stamped to form, the boss face precision is not high, easy deformation cause roller end face and guide rail boss face to be in non-full contact condition, thereby installation accuracy is low, roller can produce swing in guide rail opening and closing process, the time smooth time lag and send impact noise.The more direct and guide rail boss face rigidity friction owing to roller end face in the rolling simultaneously will cause heavy wear, gap to increase, swing increase and noise increase in the use, these weak points also need to be improved.

The utility model purpose is to provide a kind of good manufacturability, the guide rail steady, that precision is high, wearing and tearing are little and noise is low moves.

The utility model comprises movable rail, retaining rail, roller and rivet shaft, movable rail and retaining rail all have boss, roller is hinged on the boss of movable rail and retaining rail respectively by rivet shaft, between movable rail and retaining rail and the roller packing ring is arranged respectively, rivet shaft is stepped, the big step portion of rivet shaft is big rank axles, and the axis hole of big rank axle and roller is suitable, and big rank shaft length a is greater than the axis hole length b of roller.

Further the utility model is elaborated below in conjunction with embodiment and accompanying drawing:

Schematic diagram when Fig. 1 folds rail state for the utility model embodiment is in;

Fig. 2 analyses and observe enlarged diagram for the A-A of Fig. 1;

Fig. 3 analyses and observe enlarged diagram for the B-B of Fig. 1;

Fig. 4 opens the schematic diagram of rail state for embodiment is in;

Fig. 5 is the schematic diagram that rivet shaft and roller confined state amplify.

Referring to figs. 1 through Fig. 5, embodiment is two joint rails, and it comprises movable rail 2, retaining rail 1, roller 3, rivet shaft 5 and packing ring 4.Movable rail 2 and retaining rail 1 all have boss 6, packing ring 4 is between the boss face of boss 6 and roller 3, rivet shaft 5 is stepped, the big step portion of rivet shaft 5 is a big rank axle 8, big rank axle 8 fits in the axis hole of roller 3, and little rank axle 7 fits in the endoporus of packing ring 4, the length a of the big rank axle 8 of rivet shaft 5 is greater than the length b0.2mm of roller 3 axis holes, in the guide rail moving process, because packing ring 4 is arranged, and big rank axle 8 length a are a bit larger tham the length b of roller 3 axis holes, so the gap is suitable, sliding smooth and easy precision height, is flexible friction between roller 3 and boss 6 and the packing ring 4, the little long service life of wearing and tearing.

The utility model good manufacturability, slide smooth and easy steady precision height, little, the noiseless of even, the flexible friction wear in gap, be applicable to all guide rails.

Claims

1, a kind of low noise guide rail, it comprises movable rail (2), retaining rail (1), roller (3) and rivet shaft (5), movable rail (2) and retaining rail (1) all have boss (6), roller (3) is riveted on respectively on the boss (6) of movable rail (2) and retaining rail (1) by rivet shaft (5), it is characterized in that: between movable rail (2) and retaining rail (1) and the roller (5) packing ring (4) is arranged respectively.

2, low noise guide rail according to claim 1, it is characterized in that: above-mentioned rivet shaft (5) is stepped, the big step portion of rivet shaft (5) is big rank axles (8), big rank axles (8) are suitable with the axis hole of roller (3), and big rank axles (8) length a is greater than the axis hole length b of roller (3).