Hinge with seven pivots

Abstract

The invention provides a seven-shaft type gemel; wherein, a first pivot shaft 4 is pivoted with a first rotating component 1 and a first connecting rod 3; a second pivot shaft 6 is pivoted with a first connecting rod 3 and a second connecting rod 5; a third pivot shaft 7 is pivoted with the second connecting rod 5 and a second rotating component 2; a fourth pivot shaft 9 is pivoted with the first rotating component 1 and a third connecting rod 8; a fifth pivot shaft 11 is pivoted with the third connecting rod 8 and a fourth connecting rod 10; a sixth pivot shaft 12 is pivoted with the fourth connecting rod 10 and the second rotating component 2; a seventh pivot shaft 13 is pivoted with the second connecting rod 5 and the third connecting rod 8. A pair of the second connecting rods 5, 5 is arranged on the external sides of the first connecting rod 3, the third connecting rod 8, the fourth connecting rod 10 and the second rotating component 2.

Description

technical field [0001] The present invention relates to a seven-axis hinge for attaching a door to a fixed frame or the like in a closable form. Background technique [0002] The existing seven-axis hinge has a pair of rotating members and four links (links), and a pivot composed of a total of seven pins (pins) connects these members, and the ends of each pivot pin are processed and clamped by a stamping machine. (crimping) to prevent detachment. Japanese utility model clear 63-19493 just discloses similar hinge. [0003] However, in the conventional hinge constructed in this way, due to poor clamping process of the shaft pin, the end portion and the inner surface of the connecting rod may rub against each other during the opening and closing process, resulting in a high incidence of defective products. Costs are then increased by reworking or corrective work of the cut crimped end. [0004] Moreover, in order to save the time of correcting processing and prevent mutual f...

AI Technical Summary

Problems solved by technology

[0003] However, in the conventional hinge constructed in this way, due to poor clamping processing of the shaft pin, the end portion and the inner surface of the connecting rod may rub against each other during the opening and closing process, and the occurrence rate of defective products is high.

Then there is an increase in cost due to reworking or trimming of the crimped end

[0004] In addition, in order to save the time of correction processing and prevent mutual friction, a spacer is inserted between the clamping end and the connecting rod, but this causes the problem of increasing labor costs and parts costs for inserting the spacer.

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