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Hinge device for opening and closing cover of office equipment
The present invention relates to a hinge device for opening and closing a cover of office equipment, and more particularly to a hinge device disposed at a cover which is rotatably opened and closed and having a multi-layered cam and a slider, so that a free stop section and a slow down section are performed in closing the cover, thereby reducing a noise in closing the cover and improving a sensibility of product. The hinge device for opening and closing a cover of office equipment of the present invention comprises: a housing (10) which is disposed at a main body (110) of an office equipment and having a pair of hinge holes (11) on the upper portion thereof; a rotational lever(20) which is fixedly disposed at a cover (120) and having hinge holes(21) at the rear thereof and being provided with a hinge connection part(22) inserted into the upper portion inside the housing (10) at the lower portion of the rear thereof; a hinge shaft(30) being inserted into the hinge holes (11) of the housing (10) and the hinge holes(21) of the rotational lever(20) and combined with them and supporting rotation of the rotational lever(20) and the cover (120); a compression coil spring(40) being disposed inside the housing (10); and a slider(50) being disposed on the upper portion inside the housing (10) and being elastically supported by the compression coil spring(40), and the upper end portion of which contacts with the lower end surface of the hinge connection part(22) of the rotational lever(20); wherein the hinge connection part(22) of the rotational lever(20) is located at the front of hinge holes(21), so that a multi-layered cam(23) is provided to the lower end surface of the hinge connection part(22) and a supporting surface (51) is formed on the upper end surface of the slider (50), the multi-layered cam(23) of the rotational lever(20) has a stop cam(23a) in the center and at both sides thereof, down cams(23b) which locate at the rear than the surface of the stop cam(23a) and are lower than the stop cam(23a), the supporting surface(51) of the slider(50) has an inclined plane that is getting higher toward the front, at the center of the front end, a stop surface (51a) which contacts with the stop cam(23a) of the rotational lever(20) and down surfaces(51b) which is protruded from both sides of the stop surface(51a) and contact with the down cams(23b) are provided.
Hinge device for opening and closing cover of office equipment
The present invention relates to a hinge device for opening and closing a cover of office equipment, and more particularly to a hinge device disposed at a cover which is rotatably opened and closed and having a multi-layered cam and a slider, so that a free stop section and a slow down section are performed in closing the cover, thereby reducing a noise in closing the cover and improving a sensibility of product. The hinge device for opening and closing a cover of office equipment of the present invention comprises: a housing (10) which is disposed at a main body (110) of an office equipment and having a pair of hinge holes (11) on the upper portion thereof; a rotational lever(20) which is fixedly disposed at a cover (120) and having hinge holes(21) at the rear thereof and being provided with a hinge connection part(22) inserted into the upper portion inside the housing (10) at the lower portion of the rear thereof; a hinge shaft(30) being inserted into the hinge holes (11) of the housing (10) and the hinge holes(21) of the rotational lever(20) and combined with them and supporting rotation of the rotational lever(20) and the cover (120); a compression coil spring(40) being disposed inside the housing (10); and a slider(50) being disposed on the upper portion inside the housing (10) and being elastically supported by the compression coil spring(40), and the upper end portion of which contacts with the lower end surface of the hinge connection part(22) of the rotational lever(20); wherein the hinge connection part(22) of the rotational lever(20) is located at the front of hinge holes(21), so that a multi-layered cam(23) is provided to the lower end surface of the hinge connection part(22) and a supporting surface (51) is formed on the upper end surface of the slider (50), the multi-layered cam(23) of the rotational lever(20) has a stop cam(23a) in the center and at both sides thereof, down cams(23b) which locate at the rear than the surface of the stop cam(23a) and are lower than the stop cam(23a), the supporting surface(51) of the slider(50) has an inclined plane that is getting higher toward the front, at the center of the front end, a stop surface (51a) which contacts with the stop cam(23a) of the rotational lever(20) and down surfaces(51b) which is protruded from both sides of the stop surface(51a) and contact with the down cams(23b) are provided.
Hinge device for opening and closing cover of office equipment
LEE DAE WON (author)
2017-10-31
Patent
Electronic Resource
English
IPC:
E05F
DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION
,
Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung
/
E05D
Scharniere oder andere Aufhängevorrichtungen für Türen, Fenster oder Flügel
,
HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS, OR WINGS
/
H04N
PICTORIAL COMMUNICATION, e.g. TELEVISION
,
Bildübertragung, z.B. Fernsehen
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