Source: http://www.google.com/patents/US6070298?dq=system+for+measuring+web+traffic&ei=Lg8FT__TIIr-sQKzxaGRCg
Timestamp: 2017-10-19 04:09:12
Document Index: 186170799

Matched Legal Cases: ['arts 7', 'arts 9', 'arts 7', 'arts 9', 'arts 7', 'arts 9']

Patent US6070298 - Composite torque hinges - Google Patents
According to the invention, in order to obtain hinges which, even if small-sized, can create a great rotational torque and, moreover, permit ready alignment of details with the rotational moment of an opening/closing body, such as a lavatory seat or lid or accentuation of any part of the action thereof,...http://www.google.com/patents/US6070298?utm_source=gb-gplus-sharePatent US6070298 - Composite torque hinges
Publication number US6070298 A
Application number US 08/957,120
Also published as CN2309790Y
Publication number 08957120, 957120, US 6070298 A, US 6070298A, US-A-6070298, US6070298 A, US6070298A
Inventors Akira Sorimachi
Original Assignee Ratoh Electrical Machinery Co., Ltd.
Patent Citations (5), Referenced by (76), Classifications (16), Legal Events (4)
US 6070298 A
1. A composite torque hinge comprising:
a bracket having a bearing section, the bracket fitted to an upper end of a rear part of a lavatory stool;
a fixed shaft having a deformed axial part, a large diameter part, a deformed small diameter part, and a collar fastened to the fixed shaft at the end opposide the deformed axial part, the fixed shaft being engaged and fixed to the bracket by the deformed axial part inserted through a deformed hole provided in the bearing section of the bracket;
a rotating cylinder having a partition wall defining a bearing hole provided in the rotating cylinder and a lid fixedly closing one end of the rotating cylinder, the rotating cylinder freely rotatably mounted around the fixed shaft and the large diameter part, the deformed small diameter part being rotatably inserted through the bearing hole;
a cam mechanism provided within the rotating cylinder for controlling the rotational torque of the rotating cylinder, the cam mechanism comprising:
a rotation cam mounted on the fixed shaft, the rotation cam connected to the partition wall;
a sliding cam axially slidably mounted on the fixed shaft in opposed relation to the rotation cam; and
a compression spring mounted on the fixed shaft between the large diameter part and the sliding cam, the compression spring pressing the sliding cam toward the rotation cam; and
a torsion spring provided within the rotating cylinder acting against a rotational torque of the rotating cylinder mounted on the fixed shaft between the collar and the lid.
2. A composite torque hinge according to claim 1, wherein the rotating cylinder further comprises a radially protruding strip oriented parallel with a longitudinal axis of the rotating cylinder on an outer circumference thereof, the protruding strip being engaged with a fitting part of a lavatory lid.
FIG. 5 shows the curves of torques. According to this diagram, the torque curve of the torsion springs 14 crosses the opening/closing moment curve of the seat 17 in the 90° position of the seat 17. This torque curve, though always staying below the opening/closing moment curve of the seat 17 at an opening angle less than 90°, it is above the opening/closing moment curve of the seat 17 at any opening angle greater than 90°.
Thus, when the lavatory seat 17 or the lavatory lid 18 is closed, as shown in FIG. 1, convex parts 7b of the rotating cams 7 are opposite to and in contact with convex parts 9b of the sliding cams 9, resulting in the most tightly compressed state of the compression springs 11. The torsion springs 14 are in a heavily wound state. When the seat 17 or the lid 18 is to be opened from this state, since the overall torque of the hinges is slightly below the opening moment of the opening/closing body, such as the lavatory seat or the like, as indicated in FIGS. 5 and 6, the user may feel some weight or resistance at the beginning of his or her opening action. However, above 20°, where the overall torque of the hinges begins to surpass the opening/closing moment of the opening/closing body, such as the lavatory seat or the like, it can be opened with only a little force and, in the opening angle range of up to 90°, the convex parts 7b of the rotating cams 7 and the concave parts 9c of the sliding cams are pressed against each other at the same time, concave parts 7c of the rotating cams 7 are opposite to the convex parts 9b of the sliding cams 9, letting the seat or the like be stopped in any desired position. When the self-standing angle of 90° is just surpassed, braking by the mutual pressing of the rotating cams 7 and the sliding cams 9 begins to work, and bouncing back or bounding is absorbed at the full-open angle of 110°.
When closing a fully open lavatory seat, lid or the like, it can again be stopped in any desired position in the range of opening angle between 90° and 20°, and as it is let go at an opening angle of 20°, the seat or the like will begin to close slowly and naturally drop from an angle of 10°.
US7171911 * Feb 26, 2004 Feb 6, 2007 Midwest Folding Products Mobile folding table having a lifting assist center torsion bar and lift off casters
US7448330 Jan 26, 2007 Nov 11, 2008 Midwest Folding Products Mobile folding table having a lifting assist center torsion bar and lift off casters
US7506608 * Oct 12, 2004 Mar 24, 2009 Mitsubishi Steel Mfg. Co., Ltd. Hinge mechanism
US7530143 Dec 16, 2005 May 12, 2009 Shenzhen Futaihong Precision Industry Co., Ltd. Hinge mechanism for a foldable electronic device
US7634838 * Oct 19, 2005 Dec 22, 2009 Shenzhen Futaihong Precision Industry Co., Ltd. Hinge and a mobile phone with the hinge
US9044123 Feb 17, 2012 Jun 2, 2015 Carlo Gomez Espana Collignon Device comprising actuating mechanisms for lifting and lowering the cover and the seat of a WC, independently from each other or simultaneously
US20030208881 * May 7, 2002 Nov 13, 2003 Jr-Hua Li Hinge
US20060064850 * Oct 12, 2004 Mar 30, 2006 Hitoshi Sato Hinge mechanism
US20070199484 * Jan 26, 2007 Aug 30, 2007 Rivera Jeremias C Jr Mobile folding table having a lifting assist center torsion bar and lift off casters
US20080173506 * Jan 11, 2008 Jul 24, 2008 Hiroshi Ohno Opening and closing mechanism with damper
US20110050060 * Jul 28, 2010 Mar 3, 2011 Lg Electronics Inc. Washing machine
EP1342875A1 * Mar 7, 2002 Sep 10, 2003 Fu Luong Hi-Tech Co Ltd Hinge device with a returning member for automatically closing an open door
EP1559860A2 * Jan 20, 2005 Aug 3, 2005 Sanden Corporation Door mechanism for commodity take-out port in vending machine
EP1559860A3 * Jan 20, 2005 Jul 5, 2006 Sanden Corporation Door mechanism for commodity take-out port in vending machine
WO2010134795A1 * May 18, 2010 Nov 25, 2010 Gomez Espana Collignon Carlo Hydraulic actuator device for raising and lowering a seat and lid
WO2012121582A3 * Mar 2, 2012 Mar 28, 2013 Gomez Espana Collignon Cario Device comprising actuating mechanisms with a pedal and comprising a hydraulic actuator for lifting and lowering, respectively, the cover and the seat of a wc
WO2012131469A1 * Mar 26, 2012 Oct 4, 2012 Maggi S.R.L. Hinge with a force regulator for fireproof doors
International Classification E05D11/08, E05F1/12, A47K13/10, F16F7/00, F16F7/06, F16C11/10
Cooperative Classification E05F1/1215, E05D11/087, E05Y2900/614, Y10T16/540255, Y10T16/5387, E05F1/1223
European Classification E05F1/12B2, E05F1/12B4
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SORIMACHI, AKIRA;REEL/FRAME:009088/0078