JP2003301653A - Supporting device for door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door supporting device with which the door can be installed by one worker. <P>SOLUTION: Door support devices 10 and 20 are installed to upper and lower portions of one of a vertical frame 1a of the door frame 1, a pin hole 18 is formed to a support piece 12b provided at an upper door support device 10, and a support pin 28 is installed to a support piece 21b provided at the lower door support device 20. A guide tube 50 fitted to a support pin 28 at a lower portion of one side of the door 3 is installed to a guide barrel 50, and a supporting pin 41 inserted to a pin hole 18 at one side upper portion is supported in a freely movable manner in the axis direction. The door 3 is kept to an inclined stated with the upper portion falling to this side and the guide tube 50 is fitted to a support pin 28, the door 3 is moved back to a vertical attitude, the support pin 41 is coincided with a pin hole 18, the support pin 41 is moved upward, the upper portion of the support pin 41 is inserted to the pin hole 18, and the support pin 41 is fixed. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door supporting device for opening and closing a door of a door frame attached to a frame.

[0002]

2. Description of the Related Art It has been common practice to support a door so that it can be opened and closed by a hinge in which a pair of hinge pieces are rotatably connected by a pin.

[0003]

By the way, in a door supporting device using a hinge, one of the hinge pieces is attached to a vertical frame of the door frame or a side surface of the door on the hanging side, and the door is suspended and supported. Since it is necessary to attach the other hinge piece to the vertical frame or the side surface of the door in the state of
The door is very laborious to install and has the disadvantage of requiring at least two operators.

In addition, it is difficult to evenly support the weight of the door with a plurality of hinges when the door is supported.
Rattling is likely to occur at the hinge mounting portion that receives a large amount of weight.

In particular, in the case of a heavy door, rattling is likely to occur at the hinge mounting portion, and the frictional resistance at the contact portion between the hinge pieces also becomes large, making it difficult to open and close the door smoothly. is there.

SUMMARY OF THE INVENTION An object of the present invention is to provide a door supporting device which enables a worker to easily install the door.

[0007]

In order to solve the above-mentioned problems, according to the present invention, a door support is attached to one of the upper and lower parts of a vertical frame of a door frame, and the door support is provided on the upper door support. A vertically extending pin hole is formed in a supporting piece that is substantially parallel to the upper frame of the frame, and the supporting piece that is provided in the lower door support and is substantially parallel to the lower frame of the door frame has the same axis as the pin hole. A support pin is provided on the door, and a fulcrum pin whose upper part is inserted into the pin hole is provided on an upper part of the door side for opening and closing the doorway of the door frame. A guide tube is attached, the fulcrum pin is movably supported in the axial direction, and fixing means for fixing the fulcrum pin in a state in which the upper portion of the fulcrum pin is inserted into the pin hole is adopted.

According to the above construction, the door is suspended and supported in the state where the fulcrum pin is lowered, and the support provided on the lower door support tool in a state where the door is tilted so that the upper portion of the door is tilted toward you. With the guide tube fitted to the pin and supporting the door with the lower door support, set the door in a vertical posture, align the fulcrum pin with the pin hole, and then raise the fulcrum pin to support the upper door. Insert into the pin hole of the tool,
The fixing of the fulcrum pin by the fixing means completes the installation of the door, and one operator can install the door.

Here, the supporting piece of the lower door supporting member is supported by the lower frame of the door frame, and the guide cylinder is provided with a stopper body supported by the upper end of the supporting pin to reduce the weight of the door. Since it can be supported by the frame, even a heavy door can be stably supported over a long period of time.

In this case, if the stopper is provided with a ball that makes point contact with the upper end surface of the support pin, the rotation resistance due to opening and closing of the door is small, and even a heavy door can be opened and closed smoothly.

In the door supporting device according to the present invention,
The upper and lower door supports are formed by an L-shaped mounting bracket that is mounted on the door frame and an L-shaped adjustment frame that abuts against the inner surface of the mounting bracket and is positionally adjustable in the front-rear direction. If an adjustment mechanism for adjusting the position of the adjustment frame in the front-rear direction and a fixing means for fixing the adjustment frame in the position adjusted in the front-rear direction are provided between the mounting bracket and the adjustment frame, it is possible to move the adjustment frame back and forth. The tilt of the door in the front-back direction can be adjusted.

In this case, the pin hole is formed in the support piece of the adjustment frame of the upper door support, and the support piece of the bracket is provided with a long hole extending in the front-rear direction at a position corresponding to the pin hole. The support pin is fixed to the support piece of the adjustment frame of the door support so that the inclination of the door can be adjusted.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a door frame 1 attached to a frame has a rectangular shape in which an upper frame 1b and a lower frame 1c are provided between upper and lower portions of a pair of vertical frames 1a, and an inner side thereof serves as an entrance / exit 2. It is designed to be opened and closed by the door 3.

Door supports 10 and 20 are provided on the upper and lower portions of one vertical frame 1a of the door frame 1, respectively. As shown in FIGS. 2 to 4, the upper door supporter 10 includes a mounting bracket 11 and an adjustment frame 12, and the mounting bracket 11
Has an L shape in which a supporting piece 11b is provided on the upper end of the mounting piece 11a, and the mounting piece 11a is fixed to the vertical frame 1a and the supporting piece 11b is fixed to the upper frame 1b by tightening screws 13.

The adjustment frame 12 has an L shape in which a support piece 12b is provided on the upper side of a plate 12a that abuts against the inner surface of the mounting piece 11a of the mounting bracket 11 and along the inner surface of the support piece 11b.
The position is adjustable in the front-back direction by being guided by the guide surface 14 formed on the lower inner surface of the mounting piece 11a and the lower end of the support piece 11b.

A screw insertion hole 15 which is long in the front-rear direction is formed in the plate body 12a of the adjustment frame 12, and the adjustment frame 12 is attached by tightening a screw 17 screwed into the screw hole 16 of the attachment piece 11a from the screw insertion hole 15. It is fixed to the bracket 11.

A pin hole 18 is formed at the end of the support piece 12b of the adjustment frame 12, while a long hole in the front-rear direction is formed in the support piece 11b of the mounting bracket 11 at a position corresponding to the pin hole 18. 19 is formed.

On the other hand, the lower door support 20 comprises a mounting bracket 21 and an adjusting frame 22, as shown in FIGS. 2, 3 and 5, and the mounting bracket 21 comprises the mounting piece 21.
The support piece 21b is fixed to the vertical frame 1a by the attachment piece 21a, and the support piece 21b is fixed to the lower frame 1c by the screw 23.

The adjusting frame 22 has an L shape in which a supporting piece 22b is provided at the lower end of a plate 22a that abuts the inner surface of the mounting piece 21a of the mounting bracket 21 and extends along the upper surface of the supporting piece 21b.
The position is adjustable in the front-rear direction by being guided by the guide surface 24 formed on the upper inner surface of the mounting piece 21a and the upper end of the support piece 21b.

The plate 22a of the adjustment frame 22 and the support piece 22
A screw insertion hole 25 that is long in the front-rear direction is formed in b.
The adjustment frame 22 is fixed to the mounting bracket 21 by tightening.

A support pin 28 is provided on the support piece 22b of the adjustment frame 22. The support pin 28 is arranged on the same axis as the pin hole 18 of the upper door support 10.

Adjustment frame 1 for the upper and lower door supports 10, 20
The positions of 2, 2 are adjusted in the front-rear direction by the adjusting mechanism 30. Here, since the adjustment mechanisms 30 provided in the upper door support 10 and the lower door support 20 are the same,
Here, the adjustment mechanism 30 provided in the upper door support tool 10 will be described, and with respect to the adjustment mechanism 30 provided in the lower door support tool 20, the same parts will be denoted by the same reference numerals and description thereof will be omitted.

As shown in FIGS. 3 and 4, the adjusting mechanism 30 has a fitting hole 31 formed in the mounting bracket 11.
A disc 32 is rotatably provided inside the disc 32, and an eccentric pin 33 is provided at an eccentric position with respect to the center of the disc 32.
3 is inserted into the pin hole 34 formed in the plate body 12a of the adjustment frame 12, and the driver is engaged with the engaging groove 35 formed in the end surface of the eccentric pin 33 to rotate the eccentric pin 33. The adjustment frame 12 is moved in the front-rear direction by eccentric rotation.

As shown in FIG. 3, guide cylinders 40 and 50 are provided on the upper and lower sides of the door 3 on the hanging base side on the same axis. As shown in FIGS. 4 and 5, each of the guide cylinders 40 and 50 has mounting pieces 40a and 50a.
50a is attached to the side surface of the door 3 on the hanging side.

As shown in FIG. 3, the lower guide cylinder 50 has a lower end that can be fitted to the support pin 28 of the lower door support 20, and the plug body 51 is screwed into the upper portion of the guide cylinder 50. Engaged. A ball 52 supported by the upper end surface of the support pin 28 is attached to the lower end of the plug body 51.

A fulcrum pin 41 is inserted in the upper guide cylinder 40, and the upper part of the fulcrum pin 41 is the upper door support 1.
It is inserted in the 0 pin hole 18. The fulcrum pin 41 is movable in the axial direction, and a screw insertion hole 42 penetrating in the radial direction is formed in the lower portion. A fixing screw 43 is inserted into the screw insertion hole 42 as a fixing means for fixing the fulcrum pin 41 in a state where the fulcrum pin 41 is inserted into the pin hole 18. The fixing screw 43 is rotationally operated from a window 44 provided in the lower portion of the guide cylinder 40, and the fulcrum pin 41 is fixed by screwing the fixing screw 43 into a screw hole 45 formed in the guide cylinder 40 and tightening it. .

The door supporting device shown in the embodiment has the above-mentioned structure, and when mounting the door 3, the fulcrum pin 4 is used.
The door 3 is suspended and supported in a state in which 1 is lowered, and in the inclined state in which the upper portion falls toward you, the lower guide cylinder 5
0 is fitted to the support pin 28.

FIG. 6 shows a state in which the guide cylinder 50 is fitted to the support pin 28, and after the fitting, the door 3 is held vertically with the lower end of the door 3 being supported by the lower door support 20. When the fulcrum pin 41 is returned to the posture and the upper end of the fulcrum pin 41 is aligned with the pin hole 18, the fulcrum pin 41 is moved upward,
After the upper part of the fulcrum pin 41 is inserted into the pin hole 18, the fixing screw 43 is tightened to complete the attachment of the door 3, and the door 3 can be attached by one operator.

When the door 3 is attached, the door 3 is supported by the support pieces 21b and 22b of the lower door support 20, and the support pieces 21b and 22b are supported by the lower frame 1c. Will be received in the lower frame 1c. Therefore, a large load is not applied to the mounting portion of the lower door support tool 20, and even a heavy door 3 can be supported very stably.

The weight of the door 3 depends on the lower guide cylinder 50.
The ball 52 of the stopper body 51 of FIG.
Since the contact between the support pin 28 and the support pin 28 is point contact, the rotation resistance of the door 3 is extremely small, and the door 3 can be smoothly opened and closed.

[0031]

As described above, according to the present invention, the guide cylinder provided at the lower portion of the door is fitted to the support pin provided at the lower door supporting member to support the door by the lower door supporting member.
With the door in such a supported state, the fulcrum pin was lifted up, and the upper part of the fulcrum pin was inserted into the pin hole formed in the upper door support to fix the fulcrum pin. The door can be easily installed by one person.

Further, since the supporting piece of the lower door supporting tool for supporting the door is supported by the lower frame, stable mounting can be maintained for a long time even with a heavy door.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a door supporting device according to the present invention.

FIG. 2 is an enlarged cross-sectional view showing upper and lower portions of a door of the supporting device shown in FIG.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is an exploded perspective view of a door support tool that supports the upper portion of the door shown in FIG.

5 is an exploded perspective view of a door support tool that supports a lower portion of the door shown in FIG.

FIG. 6 is a vertical sectional side view showing a state in which the door is being attached.

[Explanation of symbols]

1 door frame 1a vertical frame 1b Upper frame 1c lower frame 3 doors 10 Upper door support 11 Mounting bracket 11b support piece 12 adjustment frames 12b support piece 18 pin hole 19 long hole 20 Lower door support 21 Mounting bracket 21b Support piece 22 Adjustment frame 22b support piece 28 Support pins 41 fulcrum pin 43 fixing screw 50 guide tube 51 plug 52 balls

Claims (4)

[Claims] 1. A door support is attached to an upper and lower part of one of the vertical frames of the door frame, and a pin hole which is provided in the upper door support and is substantially parallel to the upper frame of the door frame and which is oriented vertically is provided. A support pin that is formed on the lower door support and that is substantially parallel to the lower frame of the door frame is provided with a support pin on the same axis as the pin hole, and the door suspension side that opens and closes the doorway of the door frame. A fulcrum pin into which the upper part is inserted into the pin hole is provided on the upper part of the above, and a guide tube fitted to the support pin is attached to the lower part on the hanging side to support the fulcrum pin movably in the axial direction. A door supporting device provided with fixing means for fixing the fulcrum pin in a state where the upper part of the fulcrum pin is inserted into the pin hole. 2. The door according to claim 1, wherein a supporting piece of the lower door supporting member is supported by a lower frame of the door frame, and the guide cylinder is provided with a stopper body supported by an upper end of a supporting pin. Support device. 3. The door supporting device according to claim 2, wherein the stopper is provided with a ball that makes point contact with the upper end surface of the supporting pin. 4. An L-shaped mounting frame in which the upper and lower door support members are mounted on a door frame, and an L-shaped adjustment frame which is supported against the inner surface of the mounting bracket so as to be positionally adjustable in the front-rear direction. An adjusting mechanism for adjusting the position of the adjusting frame in the front-rear direction and a fixing means for fixing the adjusting frame in the position adjusted in the front-rear direction are provided between the mounting bracket and the adjusting frame. The pin hole is formed in the support piece of the adjustment frame in the fixture, and the support piece of the bracket is provided with a long hole in the front-rear direction at a position corresponding to the pin hole. 4. The door supporting device according to claim 1, wherein a supporting pin is fixed.