CA1255465A

CA1255465A - Hinge

Info

Publication number: CA1255465A
Application number: CA000488255A
Authority: CA
Inventors: Ken Tsuneki
Original assignee: Sugatsune Kogyo Co Ltd
Current assignee: Sugatsune Kogyo Co Ltd
Priority date: 1984-12-10
Filing date: 1985-08-07
Publication date: 1989-06-13
Also published as: GB8521385D0; GB2168107A; AU587580B2; AU4599785A; KR900008875B1; JPS61137979A; KR860005110A; GB2168107B; JPH0472029B2

Abstract

HINGE
ABSTRACT OF THE DISCLOSURE
A hinge which comprises a body, a socket, an outer arm for connecting one end thereof to the socket, an inner arms for pivot-ally connecting the other end thereof to the body, pivotally con-necting means for connecting the other end of the arm to the body to be circularly movably in forward and backward directions, and guide means provided between the other end of the inner arm and the body for guiding the movement of the other end of the inner arm. Thus, when the door provided with this hinge is opened from the closed state, the guide means guides the other end of the inner arm toward a displacing direction 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 di-rection. Thus, the door is opened while the door is displaced toward the outside, and the door provided with the hinge is elimi-nated 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

Description

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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 ~ .

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-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;

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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 ~ ,~

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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 ................................

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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

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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

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-,~_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.

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Claims

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:

1. A hinge comprising:
a body, a socket, an outer first arm for connecting one end thereof to the socket, an inner second arm for pivotally connecting the other end thereof to the body, pivotally connecting means for connecting the other end of the arm to the body to be circularly movable in forward and backward directions, comprising a first link pivotally secured by a pivotally securing shaft pin to said body, and a shaft pin for pivotally connecting the other end of said link and the other end of said second arm, and guide means provided between the other end of the inner arm and the body for guiding the movement of the other end of the inner arm.

2. A hinge comprising:
a body, a socket, an outer first arm for connecting one end thereof to the socket, an inner second arm for pivotally connecting the other end thereof to the body, pivotal connecting means for connecting the other end of the arm to the body to be circularly movable in forward and backward directions, comprising a circular-arc shaped pivotally connecting opening perforated at said body, and a shaft pin fixedly secured to the other end of said second arm slidably engaged with the pivotally connecting opening, and guide means provided between the other end of the inner arm and the body for guiding the movement of the other end of the inner arm.

3. The hinge as claimed in claim 1 or claim 2, wherein said guide means comprises a second link pivotally secured via a shaft pin to said body and a shaft pin for pivotally connecting the portion of said arm, displaced toward the other end thereof.

4. The hinge as claimed in claim 1 or claim 2, wherein said guide means comprises a guide opening perforated circularly of said body, and a shaft pin disposed in the vicinity of the other end of said second arm slidably engaged with said guide opening.

5. The hinge as claimed in claim 1 or claim 2, wherein said guide means comprises a circular-arc shaped guide toothform fixedly secured to said body, and a guide gear formed to be engaged with said guide toothform at a pivotally connecting portion for pivotally connecting the other end of said first link and the other end of said second arm in the connecting means.

6. A door hinge particularly adapted to permit a relatively wide opening movement of a relatively thick door, said door having a socket the depth of which is such that a substantial portion of the moving parts of the hinge is confined when the door is closed, the width of said socket being greater than the width of the moving components of the hinge, comprising:
a body adapted to be fixedly secured to a frame for said door, said door in the area adjacent said socket engaging the forward surface of said frame when said door is closed;
first and second arms for pivotally connecting the socket of said door to said body, said second arm having an outer end mounted in said socket and an inner end mounted on movable pin means having an axis about which said door rotates, the axis of said pin means being only slightly rearwardly of said forward surface of said frame when said door is closed and being essentially in the plane of said forward surface when said door is opened;
connecting means comprising a first link connected at one end to said body and at its other end to said pin means, and guide means comprising a second link pivotally connected at one end thereof to said body and at its other end to a shaft pin mounted on said second arm forwardly of said pin means, whereby when said door is opened, said pin means travels through an arcuate forward path so as to space said door from the frame to permit a more wide-open movement of the door.

7. The door hinge of claim 6, wherein said one end of said first link is connected by a pin to said first arm, and wherein said first arm is formed with a window into which a portion of said second arm extends when the door is fully open.

8. A door hinge particularly adapted to permit a relatively wide opening movement of a relatively thick door, said door having a socket in which a substantial portion of the moving parts of the hinge is confined when the door is closed, the width of said socket being greater than the width of the moving components of the hinge, comprising:
a body adapted to be fixedly secured to a frame for said door;
first and second arms for pivotally connecting the socket of said door to said body, said first arm having a first end fixedly connected to said body and a second end fixedly connected to said socket, said second arm having an outer end mounted in said socket and an inner end mounted on movable pin means having an axis about which said door rotates;

connecting means comprising a link connected at one end to said body and at its other end to said first pin means;
an arcuate guide slot formed in said body forwardly of said link, and a second pin means on said second arm and movable in said arcuate guide slot, whereby when said door is opened, said second pin means travels in said arcuate guide slot and said first pin means travels forwardly so as to space said door from the frame to permit a more wide-open movement of the door.

9. The hinge of claim 8, wherein said first arm is formed with a window into which a portion of said second arm extends when the door is fully open.

10. A door hinge particularly adapted to permit a relatively wide opening movement of a relatively thick door, said door having a socket in which a substantial portion of the moving parts of the hinge is confined when the door is closed, the width of said socket being greater than the width of the moving components of the hinge, comprising:
a body adapted to be fixedly secured to a frame for said door, first and second arms for pivotally connecting the socket of said door to said body, said second arm having an outer end mounted in said socket and an inner end mounted on first pin means having an axis about which said door rotates;
means for connecting said first pin means and said body, said connecting means comprising a first guide slot in which said first pin means engages to permit said first pin means to travel through a path forwardly when the door is opened, thereby spacing said door from the frame to permit a more wide-open movement, and backwardly when the door is closed, and guide means for guiding the travel of said first pin means, said guide means comprising a second arcuate slot formed in said body forwardly of said first slot, and second pin means on said second arm forwardly of said first pin means and engagable in said second slot, whereby when the door is opened, said second pin means moves arcuately in said second slot thereby permitting said first pin means to move forwardly in said first slot to space the door from the frame.

11. The hinge of claim 10, wherein said first arm is formed with a window into which a portion of said second arm extends when the door is fully open.