A multi-stage hinge assembly has a first connecting board, a second connecting board, a first hinge, a second hinge, an inner mounting lever and an outer mounting lever. The first connecting board has a first ring, a second ring and a recess. The second connecting board has a first ring and a second
A multi-stage hinge assembly has a first connecting board, a second connecting board, a first hinge, a second hinge, an inner mounting lever and an outer mounting lever. The first connecting board has a first ring, a second ring and a recess. The second connecting board has a first ring and a second ring. The first hinge is mounted on the connecting boards. The second hinge is mounted on the connecting boards. The inner mounting lever is mounted pivotally on the second mounting bracket of the first hinge and the rotating head of the second hinge and has two retaining plates, a holding frame and a spring. The outer mounting lever is mounted pivotally on the second mounting bracket of the first hinge and the rotating head of the second hinge.
대표청구항▼
What is claimed is: 1. A multi-stage hinge assembly having a first connecting board (30) having a proximal end; a distal end; a first ring (31) formed on the proximal end of the first connecting board (30); a second ring (32) formed on the distal end of the first connecting board (30); and a recess
What is claimed is: 1. A multi-stage hinge assembly having a first connecting board (30) having a proximal end; a distal end; a first ring (31) formed on the proximal end of the first connecting board (30); a second ring (32) formed on the distal end of the first connecting board (30); and a recess (33) formed in the first connecting board (30) between the first ring (31) and the second ring (32); a second connecting board (40) being parallel to the first connecting board (30) and having a proximal end; a distal end; a first ring (41) formed on the proximal end of the second connecting board (40); and a second ring (42) formed on the distal end of the second connecting board (40); a first hinge (10) mounted with the first connecting board (30) and the second connecting board (40) and having a first mounting bracket (11) being L-shaped, attached to the second connecting board (40) and having a bottom segment; a top segment (112) formed on the bottom segment (111); and a spindle (114) protruding out of the top segment (112) and extending through the first ring (41) of the second connecting board (40); a spring (12) mounted around the spindle (114), abutting the first ring (41) of the second connecting board (40); a second mounting bracket (14) being L-shaped, mounted on the first connecting board (30) and having a bottom segment; a top segment (142) formed on the bottom segment (141); and a hollow stub (146) formed on the top segment (142) and extending into the first ring (31) of the first connecting board (30); a pivotal shaft (13) attached to the second mounting bracket (14) and having a front end; a rear end; and a nut (132) mounted on the rear end of the pivotal shaft (13); a rotating disk (15) mounted around the pivotal shaft (13); a mounting disk (16) mounted securely on the pivotal shaft (13); and a resilient gasket (17) mounted around the pivotal shaft (13) between the nut (132) and the mounting disk (16); a second hinge (20) mounted with the first connecting board (30) and the second connecting board (40) and having a first mounting bracket (21) being L-shaped, attached to the second connecting board (40) and having a bottom segment; a top segment (212) formed on the bottom segment (211); and a sleeve (213) protruding out of the bottom segment (211), extending through the second ring (42) of the second connecting board (40) and mounted around the resilient sleeve (421); a second mounting bracket (22) attached to the first connecting board (30) and having two sides; a mounting segment (221) formed in one of the sides of the second mounting bracket (22); and a positioning board (222) formed in the other side of the second mounting bracket (22) and having a center; and a through hole (227) formed through the center of the positioning board (222); a rotating head (29) mounted through the second mounting bracket (22) and having a hollow stub (295) formed axially on the rotating head (29); a pivotal shaft (23) extending through the second ring (32) of the first connecting board (30); a rotating disk (24) mounted around the pivotal shaft (23) and having a center; a circular hole (241) formed through the center of the rotating disk (24) and mounted around the pivotal shaft (23); and two notches (242) formed in the rotating disk (24); a mounting disk (25) mounted securely on the pivotal shaft (23) and having a center; a through hole (251) being non-circular in cross section, formed through the center of the mounting disk (25) and mounted securely on the pivotal shaft (23); and two protruding segments (252) protruding out of the mounting disk (25) and corresponding to and selectively engaging the notches (242) of the rotating disk (24); two resilient gaskets (26) mounted around the pivotal shaft (23); a washer (27) mounted around the pivotal shaft (23) and abutting to the resilient disk (26); and a nut (28) mounted securely on the pivotal shaft (23); an inner mounting lever (50) mounted pivotally on the second mounting bracket (14) of the first hinge (10) and the rotating head (29) of the second hinge (20) and having two retaining plates (52) respectively formed vertically on the inner mounting lever (50) and corresponding to the recess (33) in the first connecting board (30); a holding frame (53) formed between the retaining plates (52); and a spring (54) pressing against the holding frame (53) and the recess (33) of the first connecting board (30); an outer mounting lever (60) mounted pivotally on the second mounting bracket (14) of the first hinge (10) and the rotating head (29) of the second hinge (20). 2. The multi-stage hinge assembly as claimed in claim 1, further comprising an assisting inner mounting lever (50') attached to the first mounting brackets (11,21) of the first hinge (10) and the second hinge (20); an assisting outer mounting lever (60') attached to the first mounting brackets (11,21) of the first hinge (10) and the second hinge (20); the first connecting board (30) and the second connecting board (40) are combined to a connecting board having two recesses (93); and two springs (54') mounted respectively in the recesses (93). 3. The multi-stage hinge assembly as claimed in claim 1, wherein the rotating disk (15) further has a center; a circular hole (151) formed through the center of the rotating disk (15) and mounted around the pivotal shaft (13); and two concave segments (153) formed in the rotating disk (15) and facing each other; the mounting disk (16) further has a center; a through hole (161) being non-circular, formed through the center of the mounting disk (16) and mounted securely on the pivotal shaft (13); and two protruding segments (162) formed on the mounting disk (16) and corresponding to and selectively engaging the concave segments (153) of the rotating disk (15). 4. The multi-stage hinge assembly as claimed in claim 3, wherein the first ring (31) further has two sides; and two mounting holes (311) formed separately in one of the sides of the first ring (31) and being opposite to each other; the rotating disk (15) further has two protruding segments (152) axially protruding out of the rotating disk (15) and facing each other, mounted in the mounting hole (311) of the first ring (31) in the first connecting board (30); the second mounting bracket (22) of the second hinge (20) further has two opposite sides; and two mounting recesses (226) formed separately in the other opposite side of the positioning board (222); and the rotating disk (24) further has two protruding segments (243) protruding out of the rotating disk (24) and extending into the mounting recesses (226) of the second mounting bracket (22). 5. The multi-stage hinge assembly as claimed in claim 4, wherein the second mounting bracket (14) of the first hinge (10) further has a mounting groove (147) formed axially through the stub (146) and being non-circular; the pivotal shaft (13) of the first hinge (10) further has a post (131) formed on the front end of the pivotal shaft (13) and extending into the mounting groove (147) of the second mounting bracket (14); and a head (133) formed around the pivotal shaft (13) between the post (131) and the nut (132). 6. The multi-stage hinge assembly as claimed in claim 5, wherein the second ring (32) of the first connecting board (30) further has an outer side; an inner side; an inserting hole (322) formed in the outer side of the second ring (32) and having a diameter; a through hole (323) formed in the inner side of the second ring (32), communicating with the inserting hole and having a diameter small than the diameter of the inserting hole (322); and an inner step (321) formed in the second ring (32); the stub (295) of the rotating head (29) further has a recess (296) formed in the stub (295) and being non-circular in cross section; and the pivotal shaft (23) of the second hinge (20) further has a front end; a rear end; a positioning post (232) formed on the front end of the pivotal shaft (23) and mounted securely in the recess (296) of the stub (295); a head (231) formed around the pivotal shaft (23) near the positioning post (232) and abutting the inner step (321) in the second ring (32) of the first connecting board (30); and a connecting post (233) being non-circular in cross section, formed on the rear end of the pivotal shaft (23), extending through the second ring (32) of the first connecting board (30), the through hole (227) of the second mounting bracket (22) and has a middle; an outer surface; and an outer thread (234) formed around the outer surface in the middle of the connecting post (233) and screwed with the screw nut (28). 7. The multi-stage hinge assembly as claimed in claim 6, wherein the second mounting bracket (14) of the first hinge (10) further has an outer groove (143) formed around the top segment (142); an inner groove (144) formed around the top segment (142) near the outer groove (143); two through holes (145) formed separately in the top segment (142); the rotating head (29) further has an outer groove (291) formed radially in the rotating head (29); an inner groove (292) formed radially in the rotating head (29) near the outer groove (291); and two through holes (297) formed in the rotating head (29) opposite to the stub (295); the inner mounting lever (50) further has a lower end inserted into the inner groove (144) in the second mounting bracket (14) of the first hinge (10); an upper end inserted into the inner groove (292) in the rotating head (29) of the second hinge (20); and two through holes (51) formed respectively through the upper end and the lower end of the inner mounting lever (50), the through hole (51) in the lower end of the inner mounting lever (50) corresponding to one of the through holes (145) of the second mounting bracket (14) in the first hinge (10), and the through hole (51) in the upper end of the inner mounting lever (50) corresponding to one of the through holes (297) of the rotating head (29) in the second hinge (20); and the outer mounting lever (60) further has a lower end inserted into the outer groove (143) in the second mounting bracket (14) of the first hinge (10); an upper end inserted into the outer groove (291) in the rotating head (29) of the second hinge (20); and two through holes (61) formed respectively through the upper end and the lower end of the outer mounting lever (60), the through hole (61) in the lower end of the outer mounting lever (60) corresponding to the other through hole (145) in the second mounting bracket (14) of the first hinge (10) and the through hole (61) in the upper end of the outer mounting lever (60) corresponding to the other through hole (297) in the rotating head (29) of the second hinge (20). 8. The multi-stage hinge assembly as claimed in claim 7, wherein the second ring (42) of the second connecting board (40) further has a mounting hole formed through the second ring (42); and a resilient sleeve (421) mounted securely in the mounting hole of the second ring (42); and the connecting post (233) of the pivotal shaft (23) in the second hinge (20) extends through the resilient sleeve (421). 9. The multi-stage hinge assembly as claimed in claim 8, wherein the positioning board (222) of the second mounting bracket (22) of the second hinge (20) further has two positioning recesses (223) formed separately in one of the opposite sides of the positioning board (222); the second mounting bracket (22) of the second hinge (20) further has an inner washer (224) attached to the positioning board (222) and has two protruding segments (225) protruding out of the inner washer (224) and respectively mounted securely in the positioning recesses (223) of the positioning board (222); the rotating head (29) of the second hinge (20) further has an outer washer (293) contacted with the inner washer (224) and having a protruding segment (294) protruding out of the outer washer (293). 10. The multi-stage hinge assembly as claimed in claim 9, wherein the first mounting bracket (11) of the first hinge (10) further has a mounting slot (113) formed in the bottom segment (111); the spring (12) of the first hinge (10) further has two legs, one of the legs mounted securely in the mounting notch (43) of the second connecting board (40) and the other leg mounted in the mounting slot (113) of the first mounting bracket (11); and the second connecting board (40) further has a mounting notch (43) formed in the second connecting board (40) near the first ring (41). 11. The multi-stage hinge assembly as claimed in claim 1, wherein the first ring (31) further has two sides; and two mounting holes (311) formed separately in one of the sides of the first ring (31) and being opposite to each other, the rotating disk (15) further has two protruding segments (152) axially protruding out of the rotating disk (15) and facing each other, mounted in the mounting hole (311) of the first ring (31) in the first connecting board (30); the second mounting bracket (22) of the second hinge (20) further has two opposite sides; and two mounting recesses (226) formed separately in the other opposite side of the positioning board (222); and the rotating disk (24) further has two protruding segments (243) protruding out of the rotating disk (24) and extending into the mounting recesses (226) of the second mounting bracket (22).
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이 특허에 인용된 특허 (5)
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