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Balance weight connection screw

A technology of balancing weights and screws, applied in the directions of screws, connecting components, threaded fasteners, etc., can solve the problems of non-located elastic washers, deviation from automatic screw connection, errors, etc.

Inactive Publication Date: 2013-07-03
ARCELIK AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inaccuracies may arise during the combination of the elastic washer with the connecting screw, the elastic washer may not be in the desired position on the screw, deviate and create problems during automatic screw connections

Method used

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  • Balance weight connection screw
  • Balance weight connection screw
  • Balance weight connection screw

Examples

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Embodiment Construction

[0029] A screw 1 in combination with an elastic washer SW suitable for the connection of a balance weight BW in a household appliance, such as a washing machine, comprises a preferably flanged head 2 by which the screwing operation is performed by turning it, and a shank 3, The shank 3 extends below the head 2 and has a threaded portion TP thereon. The elastic washer SW is located between the head 2 and the balance weight BW, and during the screw connection, the head 2 stretches the elastic washer SW by applying pressure on the elastic washer SW, so that the balance weight BW is prestressed way fixed to the home device.

[0030] The screw 1 of the invention comprises a cylindrical shoulder 4 provided on the part of the screw 1 where the shank 3 joins the head 2, the diameter of which is wider than that of the shank 3, and on which shoulder 4 an elastic washer SW fits on the side surface 5, the elastic washer SW is loosely located on the shoulder 4, the planar lower surface 6 ...

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PUM

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Abstract

The present invention relates to a screw (1) providing a balance weight to be secured to a household appliance, for example a washing machine, in prestressed manner, having a head (2) providing the screwing operation to be performed by being rotated, mounted with a spring washer on the lower side, and a shank (3) extending under the head (2) having a threaded portion thereon, a cylindrical shoulder (4) disposed on the part of the screw (1 ) where the shank (3) joins with the head (2), with a diameter greater than that of the shank (3).

Description

technical field [0001] The present invention relates to screws used in the connection of balance weights employed in domestic appliances. Background technique [0002] Balance weights are used in order to reduce vibrations generated during operation of household appliances such as washing machines, dishwashers or ovens. For example, in a washing machine, especially in a spin drying step where a drum rotates at a high speed, an unbalanced load due to laundry and structural factors increases vibration and noise, and causes abrasion of the washing machine. In addition, the spin drying performance of the washing machine is adversely affected. In the prior art, it is a common method to connect a balancing weight made of heavy material such as concrete or metal to a tub performing a washing process in order to balance an unbalanced load. The tub of the washing machine is usually made of plastic material, which has much lower mechanical strength than metal material. The balance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B43/00
CPCF16B43/00F16B35/048
Inventor G.蒂马S.希扎
Owner ARCELIK AS