JPH08135287A - Opening/closing device of door - Google Patents

Abstract

PURPOSE: To easily connect a connection plate to a base body, and adjust the angle of the connection plate connected to the base body and selectively connect the connection plate against the base body, for the right hand opening or the left hand opening and easily fit a door body and also easily erect and adjust it. CONSTITUTION: This device is constituted of a fixed hinge member 1 fastened to a fixed frame body A and a movable hinge member 6 fixed to a door body B and rotatably supported by the fixed hinge member 1. The movable hinge member 6 is constituted of a base body 7 fixed to the door body B and a connection plate 8 connected to the base body 7. The base body 7 is provided with a fitting recess 9 with an opening 11 fitting the end of connection plate 8, a fastening screw 16 having a large diameter head 18, a nearly V-shaped fitting groove 13 at the end of a guide recess 10, and a tapered fitting face 14. The connection plate 8 is provided with a large diameter insertion hole 26 in which the large diameter head 18 of the fastening screw 16 is inserted, and a small diameter insertion hole 27 in which the screw shaft 17 of the fastening screw 16 is inserted. An elastic support piece 31 is arranged at the position crossing the large diameter insertion hole 26.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening / closing device, and more particularly to a device for opening / closing a door installed in furniture or a room.

[0002]

2. Description of the Related Art Conventional door opening / closing devices of this type include, for example, a fixed hinge member fixed to a fixed frame member, a movable hinge member fixed to the door member, the fixed hinge member and the movable hinge member. And a hinge shaft rotatably connected to the movable hinge member, the movable hinge member being a base body fixed to the door body, and a connection plate rotatably supported by the hinge shaft and connected to the base body. The base body is formed with an engagement step portion that engages an end portion of the connection plate, and a support head portion that supports a back surface of the end portion of the connection plate is formed in an intermediate portion of the engagement step portion. Two adjusting bolts that have a large diameter head that holds the end portion of the connecting plate together with the support head of the adjusting bolt can be moved forward and backward by screwing the adjusting bolt that has been moved forward and backward. Screw to the end of the connecting plate The regulating hole and the insertion hole for inserting the two fastening bolts for the driver through the lifting head to the pivoted there is a configuration that forms respectively.

[0003]

In the structure of the prior art described above, it is necessary to attach and detach two tightening bolts when connecting the connecting plate to the base body, which requires a lot of labor for the connecting operation. When adjusting the angle (building adjustment) of the connecting plate connected to the base body, loosen the two tightening bolts,
Move the adjustment bolt back and forth to adjust the angle of the connecting plate with the support head, tighten the two tightening bolts again at the set position, and support the large-diameter head of these two tightening bolts and the adjustment bolt. Since it is necessary to clamp the end of the connecting plate with the head, it takes time to adjust the angle of the connecting plate, and select the mounting direction for opening the connecting plate to the right or left opening with respect to the base body. However, there is a problem in that the number of parts is large and the structure is complicated.

The present invention has been made in view of the above points, and the connecting plate can be easily connected to the base body, the connecting operation of the connecting plate is easy, and the base plate is connected. The angle of the connecting plate can be easily adjusted, the angle of the connecting plate can be easily adjusted, and the connecting direction of the connecting plate is selectively connected to the base body for right opening and left opening. In addition, the connecting plate can be easily connected in the direction corresponding to the right or left opening of the door, and the base body and connecting plate can be used for both the right opening and the left opening of the door. Can be reduced and the number of parts is small and the structure is simple.
It is an object of the present invention to provide a door opening / closing device in which the door body can be easily attached to the fixed frame body and the door body can be easily installed and adjusted.

[0005]

According to another aspect of the present invention, there is provided a door opening / closing device having a fixed hinge member fixed to a fixed frame member and a movable hinge member fixed to the door member and rotatably supported by the fixed hinge member. A hinge member, the movable hinge member includes a base body fixed to the door body, and a connecting plate rotatably supported by the fixed hinge member and connected to the base body, and the base body is , A fitting recess for fitting an end of the connecting plate is formed in an intermediate portion thereof, and a fixing screw having a large diameter head is provided in the fitting recess, and the connecting plate is a fitting recess of the base body. A large-diameter insertion hole for inserting the large-diameter head portion of the fixing screw and a small-diameter insertion hole that is continuous with the large-diameter insertion hole and that penetrates the screw shaft portion of the fixing screw. .

A door opening / closing device according to a second aspect is the first aspect.
In the door opening / closing device described in (1), the base body has guide recesses communicating with the fitting recesses on both sides in the vertical direction, and engaging grooves at the left and right ends of the upper and lower guide recesses, respectively. The connecting plate has insertion protrusions that are inserted into the upper and lower guide recesses of the base body on both sides in the vertical direction of the end portions, and the left and right ends of the upper and lower insertion protrusions are engaged with the engaging portions. Each has an engaging portion that engages with the groove.

A door opening / closing device according to a third aspect is the second aspect.
In the door opening / closing device described in (1), the upper and lower engagement grooves of the base body are formed to expand toward the respective guide recesses, and the tapered shape in which the ends of the connecting plate engage between the upper and lower engagement grooves. The engaging surface is formed, and the connection plate fitted in the fitting recess is connected by adjusting the tightening of the fixing screw so that the angle can be adjusted.

A door opening / closing device according to a fourth aspect is the first aspect.
In the door opening / closing device according to any one of 1 to 3, the connecting plate has a fixing screw that is pushed by the large-diameter head portion of the fixing screw at a position crossing the large-diameter insertion hole and elastically deforms to be inserted into the small-diameter insertion hole. An elastic support piece for positioning is provided.

A door opening / closing device according to a fifth aspect is the fourth aspect.
In the door opening / closing device described in (3), the large-diameter head portion of the fixing screw has an outer peripheral portion formed in a polygonal shape, and the elastic support piece abuts the outer peripheral surface of the polygonal large-diameter head portion of the fixing screw. It has a stopper.

A door opening / closing device according to a sixth aspect is the first aspect.
In the door opening / closing device according to any one of 1 to 5, the fitting recesses of the base body are formed by opening left and right portions, and engaging grooves are formed at both end portions of the upper and lower guide recesses in the left-right direction. It was done.

[0011]

In the door opening / closing device according to the first aspect of the present invention, the fixed hinge member is fixed to the fixed frame body while the base body of the movable hinge member is fixed to the door body.

Next, the large-diameter insertion hole at the end of the connecting plate is aligned with the large-diameter head of the fixing screw provided in the intermediate portion of the fitting recess of the base body, and at the same time, one of the connecting plates is When the end is pushed toward the fitting recess, the large-diameter head of the fixing screw is inserted into the large-diameter insertion hole, and one end of the connecting plate is fitted into the fitting recess. .

When the connecting plate is pulled outward, the screw shaft portion of the fixing screw is inserted from the large-diameter through hole of the connecting plate into the small-diameter through hole, and the opening edge of the small-diameter through hole is formed. The large-diameter head portion of the fixing screw is engaged with the portion, and the large-diameter head portion of the fixing screw prevents one end of the connecting plate from coming out toward the front side. Therefore, one end of the connecting plate is easily fitted and connected in the fitting recess of the base body.

Further, by rotatably connecting and supporting the other end of the connecting plate to the fixed hinge member, the base body of the movable hinge member can be easily turned to the fixed hinge member via the connecting plate. The door body is attached to the fixed frame body so that it can be easily opened and closed while being connected.

In the door opening / closing device according to the second aspect, when one end of the connecting plate is pushed toward the fitting recess, the large-diameter head portion of the fixing screw is inserted into the large-diameter insertion hole. , One end of this connecting plate is fitted into the fitting recess,
Moreover, the upper and lower insertion protrusions at one end of the connecting plate are fitted in the upper and lower guide recesses of the fitting recess, respectively.

Then, when the connecting plate is pulled outward, the screw shaft portion of the fixing screw is inserted from the large-diameter insertion hole of the connecting plate into the small-diameter insertion hole, and the connecting plate is vertically inserted. The engaging portions at the left and right ends of the protrusion are respectively engaged with the engaging grooves from the upper and lower guide recesses of the base body, and
The large diameter head portion of the fixing screw is engaged with the opening edge portion of the small diameter insertion hole.

Therefore, the upper and lower engaging portions of the connecting plate engaged with the upper and lower engaging grooves of the base body and the large-diameter head portion of the fixing screw of the base body inserted through the small-diameter through hole of the connecting plate are used to form the connecting plate. One end is prevented from slipping out toward the front side, and one end of the connecting plate is easily fitted and connected in the fitting recess of the base body.

According to another aspect of the present invention, in the door opening / closing device, one end of the connecting plate fitted in the fitting recess is expanded and formed by adjusting the tightening of the fixing screw, and the guide recess is formed along the tapered engagement surface. The angle of the connecting plate is easily adjusted and set by tightening and fixing the fixing screw at the set position, and the door body is easily installed and adjusted.

In the door opening / closing device according to the fourth aspect, when one end of the connecting plate is pushed toward the fitting recess, the elastic support piece is elastically moved by the large diameter head of the fixing screw of the fitting recess. The large-diameter head portion of the fixing screw is deformed, the large-diameter head portion of the fixing screw is inserted into the large-diameter insertion hole against the elastic support piece, and one end of the connecting plate is fitted in the fitting concave portion, and The upper and lower insertion protrusions at one end of the connecting plate are fitted in the upper and lower guide recesses of the fitting recess, respectively.

When the connecting plate is pulled outward, the large-diameter head of the fixing screw is disengaged from the elastic support piece, and the screw shaft portion of the fixing screw is small in diameter from the large-diameter insertion hole of the connecting plate. The engaging portions at the left and right ends of the upper and lower insertion protrusions of the connecting plate are respectively engaged with the engaging grooves from the upper and lower guide concave portions of the base body, and the small-diameter through hole is inserted. The large-diameter head portion of the fixing screw is engaged with the opening edge portion.

When the large-diameter head of the fixing screw is disengaged from the elastic support piece, the elastic support piece elastically returns to the position where it crosses the large-diameter insertion hole, and the elastic support piece is inserted into the small-diameter insertion hole. The fixing screw is positioned in the small diameter insertion hole, and the fixing screw is prevented from moving from the small diameter insertion hole into the large diameter insertion hole.

In the door opening / closing device according to the fifth aspect, the detent piece of the elastic support piece abuts against the outer peripheral surface of the large-diameter head portion of the fixing screw to prevent the fixing screw from rotating and loosening. It

In the door opening / closing device according to the sixth aspect, one end of the connecting plate can be selectively and easily fitted and connected to the fitting recess of the base body from either the left or right direction. Then, the door body can be openably and closably connected to the fixed frame body so as to open rightward or leftward.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of an embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a fixed hinge member fixed to the fixed frame A. The fixed hinge member 1 has a rectangular hinge plate 2 which is long in the vertical direction, and one end edge portion of the hinge plate 2 in the width direction. The hollow cylindrical bearing bodies 3 of the same shape are integrally formed on the upper and lower sides and are located on the axis. Further, the hinge plate 2 is formed with mounting holes 5 through which a plurality of mounting screws 4 are inserted.

Reference numeral 6 denotes a movable hinge member fixed to the door body B and rotatably supported by the fixed hinge member 1. The movable hinge member 6 includes a base body 7 fixed to the door body B and the fixed hinge member. 1 is rotatably supported by the base body 7
It is composed of a connecting plate 8 connected to.

The base body 7 is formed in a rectangular shape that is long in the vertical direction, and a fitting recess 9 into which one end of the connecting plate 8 is fitted is formed in an intermediate portion in the vertical direction. The fitting recess 9 has guide recesses 10 communicating with the fitting recess 9 on both sides in the up-down direction, and openings 11 opening the left and right parts of the fitting recess 9 on both sides in the left-right direction. are doing.

The fitting recess 9 has a rectangular bottom plate 12 located between the left and right openings 11 and the upper and lower guide recesses 10 and lower than the height of the left and right openings 11. Engagement grooves 13 having a substantially V-shaped cross section are formed at both ends of the upper and lower guide recesses 10 in the left-right direction and are widened toward the guide recesses 10. In addition, the left and right upper and lower engaging grooves 13
Tapered engagement surfaces 14 that are inclined toward the bottom plate portion 12 are formed inside the left and right openings 11 located therebetween.

Further, a buried boss 15 is integrally provided in the fitting recess 9 at a substantially intermediate portion in the up-down direction and the left-right direction so as to project rearward. The fitting boss 15 has a fitting recess. A fixing screw 16 for adjustment is screwed from the front side of 9 so as to be adjustable forward and backward by turning. The fixing screw 16 includes a screw shaft portion 17 screwed to the embedded boss 15 and a large-diameter head 18 having an outer peripheral portion formed in a polygonal shape such as a hexagon at the front end of the screw shaft portion 17. In addition to having an engaging shaft portion 20 as a screw shaft portion between the large diameter head 18 and the flange 19 at the end of the screw shaft portion 17, further on the front side of the large diameter head 18. Has a + groove 21 into which a Phillips screwdriver is fitted.

Further, mounting holes 23 through which mounting screws 22 are inserted are formed in the upper end portion and the lower end portion of the base body 7, respectively. Further, a cover body 24 for closing the front side of the fitting recess 9 is detachably attached to the base body 7.

Next, the connecting plate 8 is formed in a rectangular shape that is long in the left-right direction, and has one end 25 (the right side from the middle part in the left-right direction is one end and the left side is the other end). Is formed into a shape that can be fitted into the fitting recess 9 of the base body 7.

The one end 25 has a large-diameter head portion 18 of the fixing screw 16 located at a substantially middle portion in the vertical direction.
A large diameter insertion hole 26 for inserting the large diameter insertion hole 26 and a small diameter insertion hole 27 located on the outer end side of the large diameter insertion hole 26 and communicating with the large diameter insertion hole 26 for inserting the engagement shaft portion 20 of the fixing screw 16 are formed. Has been done.

A contact surface 28 on which the flange 19 of the fixing screw 16 and the large-diameter head 18 come in contact with the small-diameter insertion hole 27 is inclined toward the small-diameter insertion hole 27. Has been formed. The large-diameter insertion hole 26 and the small-diameter insertion hole 27 that engage with and disengage from the fixing screw 16 are formed in a generally polished or V-shape.

Further, at one end 25 of the connecting plate 8,
Inserting projections 29 located at both ends in the vertical direction and inserted into the upper and lower guide recesses 10 of the base body 7 are integrally formed to project in the vertical direction.
An engaging portion 30 which selectively engages with the upper and lower right or left upper and lower engaging grooves 13 of the base body 7 is formed at the left end of the base body so as to be gradually thinned toward the left side. There is.

Further, at one end 25 of the connecting plate 8, the large-diameter head portion 18 of the fixing screw 16 is pushed to a position crossing the large-diameter insertion hole 26 and elastically deformed to the small-diameter insertion hole. An elastic support piece 31 for positioning the fixing screw 16 inserted in the 27 is provided.

The elastic support piece 31 includes a positioning piece portion 32 arranged at a position crossing the large-diameter insertion hole 26 and both side portions which continuously support the positioning piece portion 32 at both ends of the positioning piece portion 32. It has a supporting piece portion 33 and is made of a spring material in a substantially U-shape. Then, the elastic support piece 31 has its positioning piece portion 32 arranged at a position crossing the large-diameter insertion hole 26, and the support piece portions 33 on both sides are fixed in a state where the opening portion of the small-diameter insertion hole 27 is closed. The end 34 is fixedly supported on the outer end of one end 25 of the connecting plate 8.

The positioning piece 32 of the elastic support piece 31
Is abutting against the polygonal outer peripheral surface of the large-diameter head 18 of the fixing screw 16 located on the side of the small-diameter insertion hole 27 and inserted into the small-diameter insertion hole 27 to prevent the large-diameter head 18 from rotating. The detent piece 35 is integrally projected toward the front side.

Next, at the other end 36 of the connecting plate 8, a hollow cylindrical bearing body 37 is supported between the upper and lower bearing bodies 3 of the fixed hinge member 1 so as to be vertically adjustable in height. Are integrally formed, and an adjusting nut 38 is integrally fitted in the bearing body 37.

The bearing body 37 of the connecting plate 8 is disposed between the upper and lower bearing bodies 3 of the fixed hinge member 1 and is rotatably and reciprocally fitted into the upper and lower bearing bodies 3. Upper and lower adjusting bolts 39 are respectively screwed to the adjusting nuts 38 of the bearing body 37 from above and below.

The connecting plate 8 is rotatably supported between the upper and lower bearing bodies 3 of the fixed hinge member 1 by using the upper and lower adjusting bolts 39 as hinge shafts. Rotate and adjust the bearing nut 37 for adjustment nut 38
By vertically moving relative to the above, the connecting plate 8 is vertically adjusted between the upper and lower bearing bodies 3.

Further, the upper and lower bearing bushes 3 of the fixed hinge member 1 are detachably fitted to the upper and lower fixing bushes 41 via nylon washers 40 to the outer ends of the upper and lower adjusting bolts 39, respectively. Has been done. The upper and lower adjusting bolts 39 are rotated by a driver inserted through the insertion holes 41a of the upper and lower fixed bushes 41 and relatively moved up and down. Reference numeral 42 in the figure denotes an annular cover that closes the gap between the upper and lower bearing bodies 3 of the fixed hinge member 1 and the bearing body 37 of the connecting plate 8.

Next, the handling of the above embodiment will be described.

When the door body B is attached to the fixed frame body A in a state where the door body is opened to the right, the fixed hinge members 1 are arranged in the embedded recesses C formed in the upper and lower portions of the right frame portion of the fixed frame body A, respectively. By installing the mounting screws 4 into the right side frame portion from the respective mounting holes 5 of the hinge plate 2 of the upper and lower fixed hinge members 1, the upper and lower sides of the right side frame portion can be moved by the respective mounting screws 4. The hinge plates 2 of the upper and lower fixed hinge members 1 are integrally embedded and fixed to the embedded recess C of FIG.

Further, the embedded recesses C above and below the fixed frame A
The base bodies 7 of the movable hinge member 6 are respectively disposed in the embedded recesses D formed in the upper and lower portions of the right side edge of the door body B at intervals corresponding to, and the doors are inserted from the respective mounting holes 23 of the upper and lower base bodies 7. The mounting screws 22 are attached to the upper and lower recesses D on the right side edge of the body B.
By screwing in, the upper and lower base bodies 7 are integrally fixed to the upper and lower buried recesses D on the right side edge portion of the door body B by the respective mounting screws 22.

Next, the connecting plates 8 of the upper and lower movable hinge members 6 are rotatable and openable by the hinge shafts composed of the upper and lower adjusting bolts 39 between the upper and lower bearing bodies 3 of the upper and lower hinge plates 2, respectively. The upper and lower base bodies 7 in the axially supported state
Large-diameter head 18 of the fixing screw 16 provided in the middle of the fitting recess 9 of
With respect to the large-diameter insertion hole 26 at one end 25 of the upper and lower connecting plates 8
Align each. In this case, the upper and lower connecting plates 8
One end 25 may be aligned with the fixing screws 16 of the upper and lower base bodies 7 simultaneously or individually.

When one end portions 25 of the upper and lower connecting plates 8 are pushed toward the respective fitting recesses 9 simultaneously or individually, the large-diameter heads 18 of the upper and lower fixing screws 16 cause the upper and lower elasticity. The positioning piece portions 32 of the support pieces 31 are respectively pushed to elastically deform the upper and lower elastic support pieces 31, and the upper and lower fixing screws are set in the upper and lower large diameter insertion holes 26 against the upper and lower elastic support pieces 31.
The 16 large-diameter heads 18 are respectively inserted, and one ends 25 of the upper and lower connecting plates 8 are fitted into the upper and lower fitting recesses 9 and one of the upper and lower connecting plates 8 is inserted. The upper and lower insertion protrusions 29 of the end portion 25 serve as upper and lower guide recesses 10 of the upper and lower fitting recesses 9.
It is fitted in each.

When the upper and lower connecting plates 8 are pulled outward, the large-diameter heads 18 of the upper and lower fixing screws 16 are disengaged from the positioning pieces 32 of the upper and lower elastic support pieces 31, respectively. The engaging shaft portions 20 of the upper and lower fixing screws 16 are inserted from the large diameter insertion holes 26 of the respective connecting plates 8 into the small diameter insertion holes 27, and the left and right ends of the upper and lower insertion protrusions 29 of the upper and lower connecting plates 8. Engaging portions 30 are engaged with the upper and lower guide recesses 10 of the upper and lower base bodies 7 into upper and lower engaging grooves 13 of the left end portion, respectively, and abut the opening edge portions of the upper and lower small-diameter insertion holes 27. The large diameter heads 18 of the upper and lower fixing screws 16 are engaged with the surface 28, respectively.

When the large-diameter heads 18 of the upper and lower fixing screws 16 are disengaged from the positioning piece portions 32 of the elastic support pieces 31, the positioning piece portions 32 of the elastic support pieces 31 are inserted into the large-diameter insertion holes. The elastic support piece 31 elastically returns to the position where it crosses 26 again, and each small diameter insertion hole is formed in the positioning piece 32 of this elastic support piece 31.
Positioning the fixing screws 16 inserted into the small diameter insertion holes 27 into the small diameter insertion holes 27, the fixing screws 16 are inserted into the small diameter insertion holes 27.
It is prevented from moving into the large diameter insertion hole 26 from.

Further, the fixing screws 16 are inserted in the small-diameter through holes 27 on the upper and lower sides.
When they are respectively positioned, the detent pieces of the elastic support pieces 31 are attached to the outer peripheral surfaces of the large-diameter heads 18 of the upper and lower fixing screws 16.
35 is abutted, and the rotation stopping pieces 35 prevent the large-diameter heads 18 of the upper and lower fixing screws 16 from rotating in the respective loosening directions.

Therefore, when the large diameter head 18 of each fixing screw 16 is brought into contact with the contact surface 28 of the opening edge of each small diameter insertion hole 27, the large diameter head 18 of each fixing screw 16 is contacted. One end 25 of the connecting plate 8 is prevented from slipping out toward the front side, and one end 25 of the upper and lower connecting plates 8 is easily fitted into the fitting recesses 9 of the upper and lower base bodies 7, respectively. Be connected. The base body 7 of the upper and lower movable hinge members 6 is easily and rotatably connected to the upper and lower fixed hinge members 1 through the upper and lower connecting plates 8, and the door body B is attached to the fixed frame body A to the right. It can be easily opened and closed in the open state.

Next, when the door body B is installed and adjusted with respect to the fixed frame body A, first, when the door body B is installed and adjusted in the horizontal direction, the upper and lower fixing screws 16 are turned respectively. By moving and adjusting the tightening, one end portion 25 of the upper and lower connecting plates 8 fitted in the fitting concave portions 9 of the upper and lower base bodies 7 is expanded upward and downward on the left side via the upper and lower insertion protrusions 29. The mounting angle is adjusted along the opened engagement groove 13 and the left-side tapered engagement surface 14.

By fixing the upper and lower fixing screws 16 at the set position, the angles of the upper and lower connecting plates 8 can be easily adjusted and set, and the door B can be easily installed and adjusted in the left and right directions. Therefore, the door body B can be easily installed and adjusted in the left-right direction by adjusting one fixing screw 16.

If necessary, the upper and lower connecting plates 8 are locked to the buried recess D of the door B through the insertion holes 43 formed in one end 25 and the upper and lower base members 7 formed in the insertion holes 44. By screwing in the screw, the door body B can be more firmly held in the installed and adjusted state.

Further, when the door body B is vertically installed, the upper and lower fixed bushes of the upper and lower fixed hinge members 1 are adjusted.
Rotate the upper and lower adjustment bolts 39 with a screwdriver inserted from the insertion hole 41a of 41 to adjust the nut of the bearing body 37.
By vertically moving relative to 38, the door body B can be easily installed and adjusted in the vertical direction.

Next, when the door body B is attached to the fixed frame body A in a state where the door body B is opened leftward, the fixed hinge member 1 is inserted into the embedded recess C formed in the upper and lower portions of the left frame portion of the fixed frame body A. In the same manner as in the case of opening the door body B to the right, they are integrally embedded and fixed.

Further, the embedded concave portions C above and below the fixed frame body A
In the same manner as in the case where the door body B is opened to the right, the base bodies 7 of the movable hinge members 6 are integrally embedded and fixed in the embedded recesses D formed in the upper and lower portions of the left edge portion of the door body B at intervals corresponding to. To do.

Then, when one end portions 25 of the upper and lower connecting plates 8 are pushed toward the respective fitting recesses 9 simultaneously or individually, one end portions 25 of the upper and lower connecting plates 8 are pushed in the same manner as described above. Are fitted in the upper and lower fitting recesses 9, and the upper and lower insertion protrusions 29 of one end 25 of the upper and lower connecting plates 8 are respectively inserted in the upper and lower guide recesses 10 of the upper and lower fitting recesses 9. Mated.

Then, when the upper and lower connecting plates 8 are pulled outward, the engaging shaft portions 20 as the screw shaft portions of the upper and lower fixing screws 16 are connected to the respective connecting plate 8 in the same manner as described above. The large-diameter insertion hole 26 is inserted into the small-diameter insertion hole 27, and the engaging portion 30 at the left end of the upper and lower insertion protrusions 29 of the upper and lower connecting plates 8 is inserted from the upper and lower guide recesses 10 of the upper and lower base bodies 7. The upper and lower engaging grooves 13 of the right end are respectively engaged, and the large diameter heads 18 of the upper and lower fixing screws 16 are respectively engaged with the contact surfaces 28 of the opening edges of the upper and lower small diameter insertion holes 27. It

When the large-diameter heads 18 of the upper and lower fixing screws 16 are separated from the positioning piece portions 32 of the elastic support pieces 31, respectively, the positioning piece portions 32 of the elastic support piece 31 are moved in the same manner as described above. Fixing screw 16 inserted in each small diameter insertion hole 27
Are positioned in the respective small diameter insertion holes 27, and this fixing screw 16 is prevented from moving from the respective small diameter insertion holes 27 into the large diameter insertion hole 26. Then, on the outer peripheral surface of the large-diameter head 18 of the upper and lower fixing screws 16, the detent pieces of the elastic support pieces 31 are provided.
35 is abutted, and the rotation stopping piece 35 prevents the large-diameter head 18 of the upper and lower fixing screws 16 from rotating.

Therefore, one ends 25 of the upper and lower connecting plates 8 are simply fitted and connected in the fitting recesses 9 of the upper and lower base bodies 7, and the upper and lower fixed hinges are connected via the upper and lower connecting plates 8. The base body 7 of the upper and lower movable hinge members 6 is easily and rotatably connected to the member 1, and the door body B is attached to the fixed frame body A so as to be easily opened and closed in a left-opened state.

Also, when the door body B is installed and adjusted in the left-right direction and the up-down direction, the installation can be easily adjusted by the same means as in the above case.

Next, in the above-mentioned embodiment, the elastic support piece 31 has the positioning piece portion 32 and is formed in a substantially U-shape by the spring material, and this is formed at the outer end of the one end portion 25 of the connecting plate 8. The elastic support piece 31 has the positioning piece portion 32 that crosses the large diameter insertion hole 26 and the fixing screw.
Any shape that can be elastically deformed by the large-diameter head 18 of 16
That is, the elastic support pieces 31 are not limited to the substantially U-shape, and the elastic support pieces 31 are not limited to being fixed to the outer end portion of the one end portion 25 of the connecting plate 8 and may be connected to each other. Board 8
Alternatively, it may be fixed to another place, or may be fixed to a predetermined position of the base body 7.

[0063]

According to the first aspect of the present invention, the base body of the movable hinge member is formed with a fitting recess for fitting the end of the connecting plate in the middle portion thereof, and the fitting recess has a large diameter head. A fixing screw having a portion, and the connecting plate of the movable hinge member has a large-diameter insertion hole through which the large-diameter head portion of the fixing screw is inserted at an end portion that fits into the fitting recess of the base body, and the insertion hole. Since a small-diameter through hole that is continuous with the hole and through which the screw shaft portion of the fixing screw is inserted is formed, by fitting the end portion of the connecting plate to the fixing screw of the base body and pulling it outward, The screw shaft can be fitted from the large-diameter insertion hole of the connecting plate to the small-diameter insertion hole, and the large-diameter head of this fixing screw can reliably prevent the connecting plate from coming off to the front side. Therefore, the connecting plate can be easily connected to the base body, and the connecting plate connecting operation can be performed. Is easy, the number of parts is easy to reduce structure, therefore, it can be attached to freely open and close easily a door body with respect to the fixed frame.

According to the second aspect of the present invention, the base body has the guide recesses communicating with the fitting recesses on both sides in the vertical direction, and the engaging grooves are formed at the left and right ends of the upper and lower guide recesses. Each of the connecting plates has an insertion protrusion to be inserted into the upper and lower guide recesses of the base body on both side portions in the vertical direction of the end portion, and at the left and right ends of the upper and lower insertion protrusions. Since each has an engaging portion that engages with the engaging groove, by fitting the end of the connecting plate to the fixing screw of the base body and pulling it outward, the left and right guide recesses on the upper and lower sides of the base body The engaging portions of the upper and lower insertion protrusions of the connecting plate can be hooked in the engaging grooves of the direction to securely engage, and the upper and lower engaging grooves of the base body and the large-diameter head portion of the fixing screw are used for connection. The plate can be more securely prevented from coming off to the front side, and The connecting plate may be further linked good stability Te.

According to the third aspect of the invention, the upper and lower engaging grooves of the base body are formed so as to expand toward the respective guide recesses, and the ends of the connecting plate are engaged between the upper and lower engaging grooves. The connecting plate that is connected to the base body can be easily adjusted because the connecting plate that is fitted to the fitting recess is connected by adjusting the tightening of the fixing screw. Therefore, the angle adjusting operation of the connecting plate is easy, and therefore, the door can be easily installed and adjusted.

According to the fourth aspect of the present invention, the connecting plate positions the fixing screw inserted into the small diameter insertion hole by being pushed by the large diameter head of the fixing screw at a position crossing the large diameter insertion hole and elastically deformed. Since the elastic support piece is arranged, it is possible to reliably position the fixing screw inserted from the large diameter insertion hole to the small diameter insertion hole with this elastic support piece, and this fixing screw changes from the small diameter insertion hole to the large diameter insertion hole. It is possible to reliably prevent the connecting plate from moving and coming off the base body.

According to the invention of claim 5, the large diameter head portion of the fixing screw has an outer peripheral portion formed in a polygonal shape, and the elastic support piece is an outer peripheral surface of the polygonal large diameter head portion of the fixing screw. Since it has a detent piece that abuts against, the detent piece can support the polygonal large-diameter head of the fixing screw and prevent the fixing screw from rotating in the loosening direction.

According to the invention of claim 6, the fitting concave portion of the base body is formed by opening the left and right portions, and the engaging grooves are formed at both end portions of the upper and lower guide concave portions in the horizontal direction. , It is possible to selectively connect the connecting plate to the base body for right-opening and left-opening in the mounting direction,
The connection plate can be easily connected in the direction corresponding to the right or left opening of the door body, and the base body and the connecting plate can be used for both the right opening and the left opening of the door body, thereby reducing inventory management and inventory quantity. be able to.

[Brief description of drawings]

FIG. 1 is a front view in which a part of a door opening / closing device according to an embodiment of the present invention is cut away.

FIG. 2 is a plan view in which a part of the same is cut away.

FIG. 3 is a front view showing a state in which the movable hinge member is separated from the above.

FIG. 4 is a cross-sectional view showing a state in which a connecting plate is connected to the above base body.

FIG. 5 is a cross-sectional view showing a state in which a connecting plate is fitted to the same base body.

FIG. 6 is a cross-sectional view showing a state in which a connecting plate fitted to the above base body is pulled out and engaged.

FIG. 7 is a sectional view showing a state in which the engaging portion of the insertion protrusion is engaged with the engaging groove of the same.

[Explanation of symbols]

 1 Fixed Hinge Member 6 Movable Hinge Member 7 Base Body 8 Connecting Plate 9 Fitting Recess 10 Guide Recess 11 Opening 13 Engagement Groove 14 Tapered Engagement Surface 16 Fixing Screw 17 Screw Shaft 18 Large Head 20 Engagement Shaft 26 Large diameter insertion hole 27 Small diameter insertion hole 29 Insertion projection 30 Engagement portion 31 Elastic support piece 35 Rotation stop piece A Fixed frame body B Door body

Claims (6)

[Claims] 1. A fixed hinge member fixed to a fixed frame member, and a movable hinge member fixed to a door member and rotatably supported by the fixed hinge member, wherein the movable hinge member is the door. The base body is fixed to the body, and the connecting plate is rotatably supported by the fixed hinge member and is connected to the base body. The base body fits an end portion of the connecting plate to an intermediate portion thereof. A fitting recess is formed, and a fixing screw having a large-diameter head is provided in the fitting recess, and the connecting plate has a large-diameter head of the fixing screw at an end that fits in the fitting recess of the base body. A door opening / closing device, characterized in that a large-diameter insertion hole for inserting the screw and a small-diameter insertion hole continuous with the large-diameter insertion hole for inserting the screw shaft portion of the fixing screw are formed. 2. The base body has guide recesses communicating with the fitting recesses on both sides in the vertical direction, and engaging grooves at the left and right ends of the upper and lower guide recesses, respectively.
The connecting plate has insertion protrusions that are inserted into the upper and lower guide recesses of the base body on both sides of the end portion in the vertical direction, and the engagement grooves are formed at the left and right ends of the upper and lower insertion protrusions. The door opening / closing device according to claim 1, further comprising engaging portions that engage with each other. 3. The upper and lower engagement grooves of the base body are formed to expand toward respective guide recesses, and the tapered engagement surfaces with which the ends of the connecting plate engage between the upper and lower engagement grooves. To form
The connection plate, which is fitted in the fitting recess, is connected so that the angle can be adjusted by adjusting the tightening of the fixing screw.
Door opening / closing device described. 4. The connecting plate is provided with an elastic support piece at a position crossing the large-diameter insertion hole, which is elastically deformed by being pushed by the large-diameter head of the fixing screw and elastically deforms to position the fixing screw inserted in the small-diameter insertion hole. The door opening / closing device according to any one of claims 1 to 3, characterized in that: 5. The large-diameter head portion of the fixing screw has an outer peripheral portion formed in a polygonal shape, and the elastic support piece has a detent piece that abuts an outer peripheral surface of the polygonal large-diameter head portion of the fixing screw. The door opening / closing device according to claim 4, which has. 6. The fitting recess of the base body is formed by opening left and right portions, and engaging grooves are formed at both end portions of the upper and lower guide recesses in the left and right direction, respectively. The door opening / closing device according to any one of 1 to 5.