Note: Descriptions are shown in the official language in which they were submitted.
~_7~
This invention rela-tes to a hinye usecl -to mount
a door or the like.
When the thickness of a door is large, in the
case that the door is mounted with a hinge or hinges,
the door collides with a side plate of a cabinet or
the like before the door is sufficiently opened, thereby
resulting in the impossibility of openiny the door
in a wide angle if the door does not have a hinge
structure rotatable to displace the door considerably
toward the outside.
Various discussions have been heretofore conducted
to increase the displacing distance of the door described
above, and various types of hinges have already been
proposed. However, most of the proposed hinges had
to employ a number of members, thereby resulting in
the employment of considerable number of pectinated
portions. Thus, the proposed hinges have a complicated
construction, a large size and a high cost, and ye-t
have a danger of interposing the ends of fingers between
the various members in the case of opening and closing
the door.
Accordingly, an object of this invention is to
provide an improved hinge which has a small size,
a simple construction and an inexpensive cost and
is capable of mounting a hinged door with large thickness
by eliminating the aforementioned drawbacks and dis-
advantages of the conventional hinge.
According to the invention, there is provided
a hinge which comprises a body, a socket, an outer
arm for connecting one end thereof to the socket,
an inner arm for pivotally connecting the other end
~ .
- ~ '
:"
-thereof to -the body, pivotal connect:ing Means for
connecting the other end of the arm to -the body to
be circularly movable in forward and backward direc'cions,
and guide means provided between 'che other end of
the inner arm and the body for guiding the movement
of -the other end of the inner arm.
According to this inven-tion, when the door provided
with the hinge or hinges of the invention is opened
from the closed state, the guide means guides the
other end of the inner arm toward a displacing direc-tion
by the opening movement of the inner arm, with the
result that the other end of the inner arm is shifted
by the pivotally securing means in the displacing
direction. Thus, the door is opened while -the door
is displaced toward the outside, and the door provided
with the hinge or hinges of the invention is eliminated
from the disadvantages of the conventional hinge that
the edge of the door consequently collides with the
door mounting frame so that the door early reaches
the opening limit.
The above and other related objects and features
of the invention will be apparent from a reading of
the following description of the disclosure found
in the accompanying drawings and the novelty thereof
pointed out in the appended claims.
Figs. 1 and 2 are fragmentary side views of a
first embodiment of a hinge in a door closed state
according to the present invention;
Figs. 3 and 4 are fragmentary side views similar
to Figs. 1 and 2 but showing a second embodiment of
a hinge according to the present invention;
. .
':~
E'igs. 5 and ~ are fragmen-tary side -views similar
to Figs. 1 and 2 bu-t showing a third embodiment of
a hinge according to the presen-t invention;
Figs. 7 and 8 are fragmentary side views slmilar
to Figs. 1 and 2 bu-t showing a fourth embod:iment of
a hinge according to the present invention;
Figs. 9 and 10 are fragmentary side views similar
to Figs. 1 and 2 but showing a fifth embodiment of
a hinge of the invention;
Figs. 11 and 12 are fragmentary side views similar
to Figs. 1 and 2 but showing a sixth embodimen-t of
the invention; and
Figs. 13 and 14 are fraymentary side views of
a conventional two-blade hinge in closed and opened
states.
Referring first to the so-called two-blade hinge
shown in Figs. 13 and 14, this is heretofore known
as a hinge which does not have the defects referred
to above in conneciton with other known hinges and
can open to a wide angle considerably larger than
other existing hinges.
This hinge is constructed by pivotally securing
the ends of arms e and f to a body b secured to a
door mounting frame a and to a socket d buried fixedly
in a door c. The construction of -this hinge is simple
and has a relatively large displacing dis-tance, which
is still smaller than that of o-ther known hinges.
Therefore, the edge c' of the door c collides with
the end of a wood side plate a' of the frame a and
with an adjacent door g at the door opening time as
!
shown in Fig. 14, and the opening angle of the ~oor
is thus limited. With the improved hinge of this
invention, simple connec-ting means i.s provided a-t
the end of the second arm f at -the body side to shift
the position of the door a-t -the door closing tiMe
toward the ou-tside a-t the door opening -time without
pivotally securing the second arm f in a predetermined
position relative to the body _ as in the conventional
hinge, and guiding means for shifting the position
of the door at the door closing time are added, thereby
increasing the displacing distance of the door by
shifting the door and opening the door to a wide angle.
Figs. 1 and 2 show a first embodiment of a hinge
according to the present invention. The hinge of
the first embodiment generally comprises a body 2
capable of being fixedly secured to a door mounting
frame 1, a cup-shaped socket 4 engaged fixedly with
a recess 3a formed on a door 3, an outer first arm
5 and an inner second arm 6 for connecting the body
2 and the socket 4. The first embodiment of the hinge
further comprises a first link 7 and a second link
8.
The first and second arms 5 and 6 can be contained
in the socket 4 in a door closed state as shown in
Fig. 1, and the first arm 5 is formed substantially
in U-shaped cross section so that the second arm 6
can be disposed inside the first arm`6. The second
arm is formed of a mere flat plate.
The first and second arms 5 and 6 are constructed
in the same manner as the conventional hinge so that
one end bent inside is pivotally secured by shaf-t
pins 91~ 92, respectively, at an interval for eliminating
-- 4
~ ,~
::
. ~ '.. , ` ~,
. , ` .
a mutual interference to each other wlth the front
side thereof in the socket 4. The other end of the
first arm 5 is pivotally secured by a shaft pin 10
to the front upper end projected forwardly of the
body 2.
The hinge of the first embodimen-t further comprises
pivotally connecting means A and guide means B. The
connecting means A is a ................................
.i~;~,"
.. ~
'-'~: ~.-' '' ' '
:: :
.
' ~
mechanism for circularly moving -the o-ther end of the second arm 6
at the body side in forward and backward direc-tions. In the first
embodiment of the hinge of the inven-tion, the connecting me~ns h
comprises the firs-t link 7 pivotally secured to the body ~ via a
shaft pin 10 of the body pivo-tally supporting point of the first
arm 6, and a shaft pin 13 for pivotally securing the o-ther ends of
the first link 7 and the second arm 6.
As described above, the pivotallv securing point O of the
shaft pin 13 can be circularly shifted in for~ard and back~ard
directions in a range of the shaft pin 10 as a center and the first
link 7 as a radius.
The guide means B is a mechanism for guiding and shifting the
pivotally securing point O forwardly at the door opening time. The
guide means of this embodiment B comprises the second link 8 pivot-
ally secured by the shaft pin 12 to the body 2, and a shaft pin 11
for pivotally securing the other end of the link 8 and the portion
of the second arm 6, displaced to the other end thereof.
The first and second links 7 and 8 of the firsk embodiment
shown in Figs. 1 and 2 are formed to be considerably shorter than
the first and second arms 5 and 6, the second link 8 is further
shorter than the first link 7, -the pivotally securing point P Oe
the shaft pin 11 is circularly moved forwardly in a range Oe the
shaft pin 12 as a center and -the second link 8 as a radius by the
movement of the second arm 6 upon opening or closing of -the door 3,
thereby shifting forwardly the point P of the shaft pin 13 as de-
scribed above.
~ ore particularly, the pivotally securing points O and P are
provided respectively to displace forwardly at the distances Q ,
Q ~, when the door is opened from the closed state Oe Fig. 1,
thereby opening the door 3 to an opening an~le 0' larger than O
. - S
as shown in Fig. 2.
Consequen-tly~ when the door 3 is opened or closed by the hinge
of the first embod:iment of the present invention descrlbed above,
the first arm 5 is rotated at the shaf-t pin 10 of the plvotall~
securing point with the body 2 as a fulcrum poin-t, while the second
arm 6 is rotated at the second link 8 pivotally secured from the
other end of the second arm 6 at the shaft pin 12 of the pivotallY
securing point with the body 2 as the fulcrum point. At this time,
the first link 7 is rotated at -the shaf-t pin 10 of the pivotally
securing point with the body 2 as a fulcrum point. hccordingly,
the pivotally securing point O of the second arm 6 pivotally secured
to the shaft pin 10 and the pivotally securing point P of the second
link 8 to the second arm 6 are displaced for~ardly at the distances
Q , ~ ', when the door is opened from the closed state, thereby
eliminating the disadvantage that the edge 3b of the door 3 collides
with the end lb of the side plate la of the door mounting frame l
to early collide with the other door, not shown, mounted adjacent
to the door.
In the first embodiment of the invention shown in Figs. 1 and
2 are described above, a window opening 5a is formed in the oppo-
site portion of the first arm 5 to the second arm 6 so -that -the
bent portion 6a of the second arm 6 is disposed in the window ope-
ning 5a of the arm 5, thereby avoidi.ng the interference of the bo-th
and providing an opening angle ~' of wide degree wi-th the hinge of
this embodiment of small size.
The door 3 is mounted in the same manner as the known hinge of
this type in the lateral direction of the door 3 by clamping the
body l on the inner surface of the side plate la of the door mount-
ing frame 1 with screws, and the socke-t ~ is clamped with screws
after forming a recess 3a on the inside Oe the base end of the door
-- 6
3 and engaging them.
In a second embodiment o-f a hinge according to the present
invention shown in Figs. 3 and 4, -the fundamen-tal construction is
substantially the same as that of the first embodiment of the in-
vention, wherein the same reference numerals designate the same or
equivalent members and componentsJ except that guide means B com-
prises a guide opening 14 perforated circularly at the body 2, and
a shaft pin 11 formed at the portion of the second arm ~, dis~
placed toward the other end of the arm 6 to be engaged slidably
~ith the guide opening 14.
As described above, the shaft pin 11 is restricted and guided
by the perforated shape of the guide opening 14 to move in the
same manner as that the second link 8 is rotated and shifted as a
radius at the shaft pin 12 as a center.
The fundamental construction of a third embodiment of a hinge
according to -the present invention shosn further in Figs. 5 and 6
is the same as that of the first embodiment, e~cept that pivotally
connecting means A comprises a first link 7 and a shaft pin 13.
One end of the first link 7 is commonly used as a shaft pin 10 but
not pivotally sesured to a body 2, but the link 7 is pivotally
secured to the body 2 by a pivotally securing shaft pin 15 pro-
vided entirely separately. Thus, the shift of the shaft pin 13 of
the third embodiment is also provided in the same manner as the
first and second embodiments as a different shaf-t construction.
A fourth embodiment of a hinge according to the presen-t in-
vention shown ln Figs. 7 and 8 employ the different shaf-t con-
struction shown and described with respect to the third embodiment
for pivo-tally connecting means A and in combination a ~uide open-
in~ 14 exemplified in the second embodiment as guide means ~.
In a fifth embodiment of a hinge according to the present in-
- 7
,~_r~r-jr J~
vention sho~n in Figs~ 9 and 1~, pivotally connecting means A is
constructed in -the same manner as the third and four-th embodimen-ts
having the first link 7, but guide means B is ditferen-t -Erom those
of the previous embodiments of the invention.
More specifically, a guide too-th~orm 16 fixedly provided on
a body 2 and ben-t, and projected circularly in a downward direc-
tion is formed on the body 2, and guide means is constructed by a
guide gear 17 fixedly secured to the second arm 6 coaxially wi-th
the shaft pin 13 of the pivotally securing point of the first link
7 and the second arm 6 in engagement with the guide toothform 16.
According to the fifth embodiment of the invention, the guide
gear 17 is guided forwardly in engagement ~ith the guide toothform
16 of the body 2 by opening -the closed door shown in Fig. 9, as
shown in Fig. 10, and the shaft pin 13 is restricted by the first
link 7 at this time so that the shaft pin 13 does not shift for-
wardly by the circular locus.
In a sixth embodiment of a hinge according to the invention
sho~n in Figs. 11 and 12, guide means B employs a guide opening 14
and a shaft pin 11 in the same manner as the second and fourth em-
bodiments, and pivo-tally connecting means A employs substantially
the same construction as the guide means B.
More particularly, the pivotally connecting means A comprises
a pivotally connecting opening 18 perforated circularlY a-t the
body 2, and the shaft pin 13 slidably engaged wi-th -the oyening 18,
thereby restricting and guiding the shaft pin 13 through the open-
ing 18 to be circularly forwardly shiftable in the same manner as
the previous embodimen-ts of the invention.
According to the present invention described above, the guide
means B can shift ~orwardly the shaft pin 13 o~ the second arm 6
upon opening and closing of the door, with the result that the
~2~
door can be opened while the socke~ 4 is displaced for-Jardl~,
thereby increasing largely the opening angle of the door provided
~ith the hinge of the invention.
In this case, the shaft pin 13 of the second arm 6 can be
selectively shifted forwardly~ Therefore, as apparent -from the
comparison of a shiftable locus circular arc of the shaf-t pin 91
with the shaft pin 10 of the first arm 5 as a center ~ith a shift-
able locus circular arc of the shaft pin 9z with -the shaft pin 13
of the second arm 6 as a center, the shaft pin 91 gradually rises
while moving forwardly, whi]e the shaft pin 9z abruptly rises
while moving for~ardly. Consequently, the door can be suffi-
ciently displaced forwardly and up~ardly with the for~ard shifting
construction of the shaft pin 13, ~ith the result that the edge of
the door hardly collides with end of the side plate of the door
mounting frame as shown in Fig. 2 and that the early collision
with the adjacent door described with resPect to Fig. 14 can be
effectively eliminated by the abovementioned shift of the door.
According to the invention as described above, the pivotally
connecting means A and the guide means B do not fundamentally
alter the simple construction of the so-called conventional two-
blade hinge, but a mere addition of a small member or a perfora-
tion of the openin~ at the body is suficient. Consequently, the
hinge of the present invention can readily employ a small size, a
large strength, can eliminate an unintentional damage of fingers
with remarkably inexpensive cost as compared with the conventional
hinge of complicated construction, -thereby meeting the demand of
doors of large thickness.
_ 9 _
