Three pulleys
A technology of three pulleys and rollers, which is applied in the direction of door/window accessories, wing leaf parts, wing leaf suspension devices, etc., can solve the problems of door and window derailment, non-contact between rollers and slide rails, unevenness, and achieve smooth operation.
Active Publication Date: 2018-07-10
GUANGDONG KIN LONG HARDWARE PROD CO LTD
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Problems solved by technology
[0002] Sliding doors and windows are widely used in real life. Due to the processing errors of the rollers on the pulley assembly, the diameters of each roller are different. During the movement of sliding doors and windows, there are rollers in the roller assembly that do not contact the door and window slide rails. This not only leads to the jamming phenomenon when the sliding doors and windows slide, but also has the potential safety hazard of derailment from the doors and windows
In addition, there are also errors in the manufacturing and installation of the upper and lower rails of doors and windows. There is a certain inclination angle of the slide rails relative to the horizontal plane, or the surface of the slide rails is deformed and uneven, which will also make the rollers not in contact with the slide rails, and eventually It will cause the movement of sliding doors and windows to be unsmooth
Method used
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[0030] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0031] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "inner", "outer", "left", "right" and similar expressions are used herein for the purpose of descripti...
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The invention relates to a tri-pulley. The tri-pulley comprises rollers, two swing hinges and a balance hinge for mounting the rollers and linearly hinged at intervals, and a shell for accommodating the swing hinges and the balance hinge; the swing hinges are provided with first hinge holes for hinging with the balance hinge, first mounting holes for mounting the rollers, and support holes positioned between the first hinge holes and the first mounting holes for hinging with the shell; fulcrum shafts connected with the shell are inserted in the support holes; second hinge holes corresponding to the first hinge holes and second mounting holes positioned between the two second hinge holes are respectively formed in two ends of the balance hinge; and balance shafts for mounting the rollers are inserted in the second mounting holes. The tri-pulley can guarantee contact between the rollers and door / window slide rails, and guarantees smooth operation of a pull-push door / window.
Description
technical field [0001] The invention relates to the technical field of door and window accessories, in particular to a three-pulley. Background technique [0002] Sliding doors and windows are widely used in real life. Due to the processing errors of the rollers on the pulley assembly, the diameters of each roller are different. During the movement of sliding doors and windows, there are rollers in the roller assembly that do not contact the door and window slide rails. This not only leads to the phenomenon of jamming when the sliding doors and windows slide, but also has the potential safety hazard of derailment from the doors and windows. In addition, there are also errors in the manufacturing and installation of the upper and lower rails of doors and windows. There is a certain inclination angle of the slide rails relative to the horizontal plane, or the surface of the slide rails is deformed and uneven, which will also make the rollers not in contact with the slide rails...
Claims
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IPC IPC(8): E05D13/00
CPCE05D13/00
Inventor 白宝鲲
Owner GUANGDONG KIN LONG HARDWARE PROD CO LTD