CN2218671Y

CN2218671Y - Universal castor for piano

Info

Publication number: CN2218671Y
Application number: CN 95205113
Authority: CN
Inventors: 韩枢
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-03-24
Filing date: 1995-03-24
Publication date: 1996-01-31
Anticipated expiration: 2005-03-24

Abstract

The utility model belongs to a castor having the rotary function, particularly an Universal castor for a piano. The utility model is composed of a vertical shaft, a wheel disc, a ball bearing, a support frame, transversal shafts on both sides of the support frame and rolling wheels arranged on the transversal shafts. The utility model is characterized in that the wheel disc is boss-shaped; a vertical shaft hole is arranged in the central of the wheel disc; four corners thereof are provided with mounting holes; the ball bearing is installed between the wheel disc and the support frame; the outer sleeve thereof is fixedly connected with the wheel disc and the support frame; the vertical shaft can penetrate through the vertical shaft hole of the wheel disc and be fixedly connected with the inner sleeve of the ball bearing and the support frame. The utility model has the advantages that the turn of the rolling wheel is flexible facility when piano moves, the piano is stable and reliable when parking, and the piano can not be moved by external disturbance.

Description

A kind of universal caster wheel that is used for piano

The utility model belongs to a kind of turning effort caster wheel that has, and is a kind of universal caster wheel that is used for piano specifically.

Piano is more enervated, volume is big, Heavy Weight, mobile difficult, when it is moved to the use location, wishes that it can be parked in stably there and arbitrarily not move, and therefore needs a kind of conveniently moving of installation, parks reliable and stable universal caster wheel.The universal caster wheel that is used for mobile object at present is a lot, as the universal caster wheel of being installed on the waggon of the usefulness of handling official business, it by vertical shaft, wheel disc, bearing, support, be located at the transverse axis on the support and the roller that is installed on the transverse axis is formed, the wheel disc bolt together is on the chassis of waggon, ball bearing of main shaft is installed in the bottom side central authorities of wheel disc, it and cradle top surface sliding block joint, vertical shaft is fixed in the central authorities of wheel disc, its underpart and support sliding block joint.Its advantage is that rotation is convenient, flexible, but too flexible because of it, as it is installed in piano can not stably be parked on the use location.

The purpose of this utility model is that a kind of moving of design turns to flexibly, parks the reliable and stable universal caster wheel that is used for piano.

The benzene utility model is achieved in that a kind of universal caster wheel that is used for piano, it by vertical shaft, wheel disc, ball bearing of main shaft, support, be located at the transverse axis of support both sides and the roller that is installed on the transverse axis is formed, wherein, said wheel disc is the boss shape, its central authorities have the vertical shaft hole, its four jiaos have and are used for and piano base bonded assembly mounting hole, ball bearing of main shaft is installed between wheel disc and the support, captiveing joint with support with wheel disc respectively in the upper and lower end face of its overcoat, captives joint with support with the interior cover of ball bearing of main shaft in the vertical shaft hole that vertical shaft passes wheel disc.

Compared with prior art, wheel disc is the boss shape in the utility model, its central vertical shaft hole forms the sliding shaft sleeve of vertical shaft, vertical shaft is played stable position-limiting action, vertical shaft is to rotate by ball bearing of main shaft in this axle sleeve, and drives support and roller rotation, so it can make piano roller steering when mobile flexible, guarantee that again piano its weight when parking can reliablely and stablely be supported on the roller by wheel disc and support, can not be subjected to external disturbance and move the position.

Now in conjunction with the accompanying drawings and embodiments the utility model is done specific descriptions:

Fig. 1 is a kind of universal caster wheel structural representation that is used for piano;

Fig. 2 is the left view of Fig. 1.

As depicted in figs. 1 and 2, a kind of universal caster wheel that is used for piano, it is by vertical shaft 1, wheel disc 2, ball bearing 3, support 4, the roller 6 that is located at the transverse axis 5 of support 4 both sides and is installed on the transverse axis 5 is formed, wherein, wheel disc 2 is the boss shape, its central authorities have the vertical shaft hole, form the sliding shaft sleeve of vertical shaft 1, its four jiaos have and are used for and piano base bonded assembly mounting hole, ball bearing of main shaft 3 is installed between wheel disc 2 and the support 4, on ball bearing of main shaft 3 overcoats, captiveing joint with support 4 with wheel disc 2 respectively in the lower surface, captives joint with support 4 tops with the interior cover of ball bearing of main shaft 3 in the vertical shaft hole that vertical shaft 1 passes wheel disc 2.Adopt boss shape wheel disc 2 can guarantee that piano vertical shaft 1 when mobile can rotate to drive support 4 and roller 6 rotations as mentioned above in the axis hole of wheel disc 2, piano its weight when parking reliablely and stablely is supported on the roller 6, not because of being subjected to external disturbance to move the position by wheel disc 2 and support 4.If ball bearing of main shaft 3 mainly is in order to make vertical shaft 1 rotation flexibly.For protective cradle 3, make its not invar qin weight and damaging by pressure, the gravity strut angle α of support 3 should satisfy 35 °≤α≤40 °.In order to roll conveniently, the wheel rim of roller 6 is an arc, and it is contacted for putting with ground.Vertical shaft 1 and transverse axis 5 are that 45 ° of steel are made in the present embodiment; Wheel disc 2, support 4 and roller 6 adopt spheroidal graphite iron to make, and make its wear-resisting, compression resistance; Ball bearing of main shaft 3 is a known products.

The utility model not only can be used for the mobile support of piano, also can be with the mobile support of other weights, as the mobile support of sofa, household electrical appliance, electromechanical appliance.

Claims

1. universal caster wheel that is used for piano, it is by vertical shaft (1), wheel disc (2), ball bearing of main shaft (3), support (4), the roller (6) that is located at the transverse axis (5) of support (4) both sides and is installed on the transverse axis (5) is formed, it is characterized in that wheel disc (2) is boss shape, its central authorities have the vertical shaft hole, form the sliding shaft sleeve of vertical shaft (1), its four jiaos have and are used for and piano base bonded assembly mounting hole, ball bearing of main shaft (3) is installed between wheel disc (2) and the support (4), on it, captiveing joint with support (4) with wheel disc (2) respectively in the lower surface, captives joint with a top of light (4) with the interior cover of ball bearing of main shaft (3) in the vertical shaft hole that vertical shaft (1) passes wheel disc (2).

2. according to the said a kind of universal caster wheel that is used for piano of claim 1, the gravity strut angle α that it is characterized in that said support (4) satisfies 35 °≤α≤40 °, and the wheel rim of roller (6) is an arc.

3. according to claim 1 or 2 said a kind of universal caster wheels that are used for piano, it is characterized in that vertical shaft (1) and transverse axis (5) made by 45 steel, wheel disc (2), support (4) and roller (6) are made by spheroidal graphite iron.