Frameless glass door hinge

Details Frameless glass door hinge Frameless glass door hinge

2003-03-28

2004-07-27

Mah, Chuck (Department: 3676)

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Hinge

Including adjustment for changing relative orientation of...

C016S252000, C016S382000, C016S286000, C016S332000, C016S245000

Reexamination Certificate

active

06766561

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a hinge, and more particularly to a frameless glass door hinge that can adjust a glass door in a transverse direction.
2. Description of Related Art
With reference to
FIG. 8
, a conventional frameless glass door hinge comprises a mounting device (
50
), a hinge assembly (
60
), an adjusting device (
70
) and an internal doorstop (
80
).
The mounting device (
50
) comprises a bracket leaf (
51
), threaded bolts (not numbered), a doorstop bracket (
52
), a central hinge pin (
53
) and a bushing (not numbered). The bracket leaf (
51
) comprises a front surface (not numbered), a rear surface (not numbered) and through holes (not numbered). The rear surface has an inside edge (not numbered), a recess (
511
) and an elongated recess hole (
5111
). The recess (
511
) extends into the rear surface of the bracket leaf (
51
) from the inside edge, and the elongated recess hole (
5111
) extends through the bracket leaf from the recess (
511
).
The doorstop bracket (
52
) comprises a bracket body (not numbered) and two ears (
522
). The doorstop bracket (
52
) has a rear rectangular surface (not numbered), a rectangular recess (
524
) and a rectangular through hole (not numbered). The rectangular recess (
524
) is formed in the rear surface of the bracket body and communicates with the recess (
511
) in the bracket leaf (
51
). The bracket leaf (
51
) is formed on the bracket body of the doorstop bracket (
52
). The rectangular through hole extends from the rectangular recess (
524
) through the bracket body. The bracket body extends forward and forms two ears (
522
) with a head gap (
521
) formed between the two ears (
522
). A pivot hole (
523
) passes vertically through both ears (
522
).
The bushing has an upper segment (not numbered) and a lower segment (not numbered). Each segment has an end flange (not numbered) and a hollow shaft (not numbered), and the hollow shafts of the two segments are mounted in the pivot holes (
523
) respectively such that the hollow shafts face each other. The central hinge pin (
53
) is a cylindrical shaft and has an upper end (not numbered) and a lower end (not numbered). Flutes (not numbered) are formed on the upper end of the central hinge pin (
53
).]
The adjusting device (
70
) comprises a key (
71
) and a bolt (
73
). The key (
71
) has a rectangular end (not numbered), a round end (not numbered), a rectangular through hole (not numbered) and a threaded hole (
711
). The rectangular through hole (not numbered) extends through the rectangular end of the key (
71
), and the threaded hole (
711
) extends through the round end of the key (
71
). When the key (
71
) is slid into the recesses (
511
,
524
) in the mounting device (
50
), the threaded hole (
711
) in the key (
71
) aligns with and can be adjusted in the elongated recess hole (
5111
). The bolt (
73
) extends through the elongated recess hole (
5111
) and screws into the threaded hole (
711
) from the front surface of the bracket leaf (
51
) to hold the key (
71
) in place.
The internal doorstop (
80
) comprises a head (
81
), two coil springs (
83
), two holders (
84
) and a stop rod (
85
). The head (
81
) comprises a central pivot hole (
811
), a round surface (not numbered), detents (
812
) and a neck (
813
). The central pivot hole (
811
) extends vertically through the head (
81
) and aligns with the pivot holes (
523
) through the ears (
522
) on the mounting device (
50
). The detents (
812
) are formed in the round surface parallel to the central pivot hole (
811
). When the head (
81
) is mounted in the head gap (
521
) between the ears (
522
) of the doorstop bracket (
52
), the bushing segments extending through the pivot holes (
523
) extend into the central pivot hole (
811
). The central hinge pin (
53
) extends through the bushing and holds the head (
81
) in the head gap (
523
) between the ears (
522
). The neck (
813
) of the head (
81
) extends through the rectangular through hole and recess (
524
) in the body of the doorstop bracket (
52
) and the rectangular hole in the key (
71
). The key (
71
) holds the head (
81
) firmly in position. A gap (not shown) is formed between the head (
81
) and the doorstop bracket (
52
) so the head (
81
) will pivot around the central hinge pin (
53
) when the key (
71
) is loosened.
The stop rod (
85
) has two ends (not numbered). Each holder (
84
) has a shaft (not numbered) and a head (not numbered). Each head has a distal end (not numbered) and a transverse mounting slot (not numbered) radially extending from the transverse head. The shafts of the holders (
84
) are mounted respectively in the coil springs (
83
), and the two ends of the stop rod (
85
) are mounted respectively in the transverse mounting slots in the holders (
84
). The stop rod (
85
) presses against the outside surface of the head (
81
) and is held selectively in one of the detents (
812
).
The hinge assembly (
60
) has a right hinge leaf (
62
), a left hinge leaf (
61
) and threaded bolts (not numbered). The right hinge leaf (
62
) comprises two arms (not numbered), an outer surface (not shown), an inside surface (not numbered), a hollow stud (
623
), a U-shaped gap (not numbered) and a doorstop bracket (
622
). The hollow stud (
623
) protrudes from the inside surface and has an inner threaded hole (not numbered). The U-shaped gap (not numbered) is formed between the two arms of the right hinge leaf (
62
). The doorstop bracket (
622
) comprises a central body (not numbered) and two flat arms (not numbered). The central body has a transverse threaded hole (not numbered), a right hinge leaf recess (
224
). The right hinge leaf recess (
624
) has a rectangular space (not numbered) and two cylindrical spaces (not numbered). The two coil springs (
83
) are mounted respectively in the cylindrical spaces in the right hinge leaf recess (
624
). The holders (
84
) are mounted respectively in the cylindrical spaces of the right hinge leaf recess (
624
). The two flat arms of the doorstop bracket (
622
) are formed parallel to and respectively abut the two arms of the right hinge leaf (
62
). Two hinge pin holes (
625
) extend through the two flat arms of the bracket (
622
) respectively. The ends of the central hinge pin (
53
) are securely held in the hinge pin holes (
625
) by the flutes on one end of the central hinge pin (
625
).
The left hinge leaf (
61
) comprises an inside surface (not shown), an outer surface (not numbered), countersunk holes (
612
) two arms (not numbered) and a U-shaped gap (not numbered). The U-shaped gap is formed between the two arms. The countersunk holes (
612
) extend from the outer surface to the inside surface of the left hinge leaf (
61
) and correspond respectively to the threaded holes in the hollow stud (
623
) on the inside surface and the central body of the right hinge leaf (
62
). The threaded bolts are screwed into the threaded hold in the stud (
623
) and the central body to connect the right and left hinge leaf (
62
,
61
) together The head (
81
) is connected to the hinge assembly (
60
) and extends into the gap between the two arms in the hinge assembly (
60
). The central hinge pin (
53
) is the pivotal center for the hinge assembly (
60
).
The frameless glass door hinge is attached to a doorframe (not numbered) by passing the threaded bolts through the through holes in the bracket leaf (
51
) and screwing the threaded bolts into threaded holes (not shown) in the doorframe. A frameless glass door (not numbered) is securely mounted between the inner surfaces of the right and left hinge leaves (
62
,
61
). When the frameless glass door is open, the stop rod (
85
) is usually held in one of the detents (
812
) in the head (
81
). When the door glass is adjusted, the stop rod (
85
) disengages from the detent (
812
), and the stop rod (
85
) moves with the door glass on the round surface of the head (
81
) until the stop rod (
85
) engages another one of the detents (
812
). When the stop rod (
85
) engages another detent (
812

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