JPH07310469A - Door hinge - Google Patents

Abstract

PURPOSE:To facilitate door assembly work concerning a door hinge having a pair of hinge plates and a hinge shaft connecting both of the hinge plates. CONSTITUTION:A projection 4 is provided in the middle of a shaft part of a hinge shaft 3. A flute 5 corresponding to the projection 4 is provided on the internal surface of a bearing cylinder 1a of a hinge plate 1 on the side of a door. A hinge shaft 3 is temporarily assembled on the bearing cylinder 1a in the state where the projection 4 makes contact with an opening edge of the upper part of the bearing cylinder 1a, and in this state, the door is assembled on a door frame. After positioning, the projection 4 is positioned in the flute 5 by revolving and operating the hinge shaft 3, and the hinge shaft 3 is inserted into a bearing cylinder 2a of an object to be connected to.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe hinge type door hinge for swingably connecting a door to a door frame.

[0002]

2. Description of the Related Art A pipe hinge type door hinge has a pair of hinge plates and a hinge shaft connecting the hinge plates so that they can swing relative to each other, and after attaching each hinge plate to a door frame and a door. The procedure is to insert the hinge shafts into the bearing sleeves of both hinge plates in order from the bottom. This type of hinge is disclosed in, for example, Japanese Patent Laid-Open No. 3-18748
It is publicly known in Japanese Patent No.

[0003]

As described above, in the pipe hinge type door hinge, the door is tilted to connect the lower hinge plate pair, and then the upper hinge plate pair is sequentially connected. In many cases, the door and the door frame are flush with each other when the door is closed, or the door is slightly recessed from the door frame.In such a door structure, the door is tilted outside the door frame as much as necessary. As a result, there is no hindrance to the above-mentioned assembly work.

However, when the amount of deviation in the front-rear direction between the door and the door frame in the door closed state increases, the door hits the door frame, making it difficult to take the required tilted posture. Especially in the door structure where a decorative frame is attached to the opening side of the door frame,
Since the amount of front-back misalignment between the opening surface of the decorative frame and the door becomes large, the above-described mounting form cannot be adopted. Therefore, in such a door structure, the doors are horizontally assembled. With the door kept almost vertical, insert the suspension side into the door frame, make sure that the bearing tube of the hinge plate on the door side and the bearing tube of the hinge plate on the door frame side have the same axis. The shaft is inserted into both bearing sleeves.

When horizontally assembling the door, it is necessary to support the door and align the hinge plate pair at the same time, and further, it is necessary to insert the hinge shaft into the bearing cylinder while maintaining the aligned state. . Therefore, the work is more complicated than the above-described door assembly work, and there is a disadvantage that the door assembly cannot be performed by one person. If the weight of the door is large and the number of hinges used is 3 or more, the door assembling work becomes more difficult. When assembling a door produced in a factory, since the shape and the dimension are not corrected at the construction site, the door assembling work becomes more difficult.

An object of the present invention is to provide a door hinge that can be more easily assembled to a door frame. An object of the present invention is to provide a door hinge in which the hinge shaft can be temporarily assembled to the bearing tube of the hinge plate on the door side and the door assembling work can be quickly performed even when the door is horizontally installed. An object of the present invention is to provide a door hinge that allows only one worker to assemble the door and reduce the cost required for the door assembly work.

[0007]

SUMMARY OF THE INVENTION According to the present invention, a pair of hinge plates 1 and 2 and bearing cylinders 1a and 2a provided on both hinge plates 1 and 2 are fitted into the hinge plates 1 and 2 to form the hinge plates 1 and 2.
In a door hinge having a hinge shaft 3 that connects the two so that they can swing relative to each other, a protrusion 4 is provided on a peripheral surface of the shaft portion that is away from the insertion start end of the hinge shaft 3 by a predetermined distance, and the shaft portion above the protrusion 4 is provided. Is characterized in that a vertical groove 5 is formed on the inner surface of the bearing tube 1a for receiving the projections to allow the projection 4 to move up and down. Specifically, a pair of protrusions 4 are provided integrally with the shaft portion by plastically deforming the shaft portion at positions facing each other on the peripheral surface of the shaft portion of the hinge shaft 3. A linear hole 18 is formed in the shaft portion of the hinge shaft 3, and the shaft body 17 is inserted and fixed in the hole 18 with at least one end protruding from the peripheral surface of the shaft portion to form the projection 4. The sleeve 19 is fitted into the bearing tube 1a, and the vertical groove 5 is formed on the inner surface of the sleeve 19. Bearing tube 1a for receiving the head portion 3a of the hinge shaft 3
A notch 6 for removing and operating the hinge shaft 3 is formed in a part of the upper edge of the. Another hinge plate of the present invention is fitted in a pair of hinge plates 1 and 2 and bearing cylinders 1a and 2a provided on the hinge plates 1 and 2 so that the hinge plates 1 and 2 can swing relative to each other. A protrusion 4 is provided on the inner surface of an upper bearing cylinder 1a that receives the hinge shaft 3, and a protrusion 4 is provided on the lower half side of the shaft portion of the hinge shaft 3. It is characterized in that a vertical groove 5 is formed to allow entry.

[0008]

When the door 10 is assembled to the door frame 11, the hinge shaft 3 is temporarily assembled to the bearing cylinder 1a in advance. The bearing cylinder 1a at this time is the bearing cylinder located at the uppermost position in the coupled state, and may be either the door 10 side or the door frame 11 side. In the temporarily assembled state, the protrusion 4 contacts the upper end of the bearing cylinder 1a. Therefore, the hinge shaft 3 is in a state in which only the shaft portion on the insertion start end side is inserted into the bearing cylinder 1a. In this state, the hinge plate 1 on the door 10 side is joined to the hinge plate 2 on the door frame 11 side, and the center positions of the bearing cylinders 1a and 2a of both hinge plates 1 and 2 are aligned. Next, the hinge shaft 3 is operated to align the protrusion 4 with the position of the vertical groove 5, and the hinge shaft 3 is inserted into the bearing cylinder 2a on the coupling partner side. In this way, if the hinge shaft 3 is temporarily assembled and attached to one of the bearing cylinders 1a, the hinge shaft 3 is simply rotated and pushed in while the door 10 is supported in the aligned state. Two can be connected. Since the hinge shaft 3 is preliminarily assembled, it is not necessary to insert the hinge shaft 3 into the bearing tube 1a while maintaining the aligned state, and therefore only one operator can assemble the door without trouble. When the protrusion 4 is integrally provided on the hinge shaft 3 by press working, the number of parts of the door hinge can be reduced and the cost required for the working can be reduced as compared with the case where the protrusion 4 is formed by driving a spring pin into the shaft portion.

[0009]

According to the present invention, the projection 4 for temporary assembly is provided on the shaft portion of the hinge shaft 3, and the hinge shaft 3 is fixed to the door 10, for example.
Since the door can be assembled while being inserted into the bearing tube 1a of the side hinge plate 1, the door assembling work can be performed more easily than the conventional pipe hinge type door hinge. In particular, when the door frame 11 and the door 10 are greatly displaced in the front-rear direction when the door is closed, and the door 10 is supported sideways, the hinge shaft 3 is supported while the door 10 is supported.
Can be easily inserted into the bearing cylinder 2a on the other side of the connection, so that a series of door assembling operations can be performed quickly and easily. Since both hinge plates 1 and 2 can be connected by operating the hinge shaft 3 that has been temporarily assembled to one bearing cylinder 1a in advance, only one worker can perform the door assembly, for example, an apartment house. It is possible to reduce the cost required for the door assembling work.

[0010]

1 to 5 show a door hinge according to the present invention. 1 and 4, the door hinge is a door 10.
Side hinge plate 1, hinge frame 2 side door frame 11 side, and hinge cylinders 1a and 2a provided on both hinge plates 1 and 2 to be fitted internally so that both hinge plates 1 and 2 move relative to each other. And a hinge shaft 3 with a head that is movably connected. Hinge plate 1 on the door 10 side
The bearing cylinder 1a is formed on the upper part of the plate, and the bearing cylinder 2a of the hinge plate 2 on the door frame 11 side is formed on the lower part of the plate.

A pair of protrusions 4 are formed by pinching at a position facing the outer periphery of the hinge shaft 3 in the middle in the longitudinal direction. As shown in FIG. 2, when the hinge shaft 3 is inserted into the bearing cylinder 1a from above and the projection 4 is locked to the upper end edge of the bearing cylinder 1a, the hinge shaft 3 does not protrude from the lower end of the bearing cylinder 1a. Thus, the formation position of the protrusion 4 is set. As shown in FIG. 4, a vertical groove 5 into which the protrusion 4 is vertically movable is formed at a position facing the inner surface of the bearing cylinder 1a over the entire length of the bearing cylinder 1a. That is, the bearing tube 1 a that receives the shaft portion above the protrusion 4 is provided with the vertical groove 5 corresponding to the protrusion 4. Flute 5
Is formed by pressing the hinge plate 1 in the expanded state. When the hinge shaft 3 is inserted into the bearing cylinder 1a in a state where the protrusion 4 is aligned with the vertical groove 5, the hinge shaft 3 can be inserted until the head portion 3a at the upper end thereof abuts the upper end edge of the bearing cylinder 1a.

As shown in FIG. 3, a notch 6 is formed in a part of the upper end of the bearing cylinder 1a so that the large diameter head 3a can be easily pushed up by a tool or a fingertip when the inserted hinge shaft 3 is pulled out. Form. An appropriate number of spacer rings 7 are mounted on the upper end of the bearing cylinder 2a of the hinge plate 2 on the side of the door frame 11 as required, and a cylindrical shape that is fitted over the spacer ring 7 and the upper part of the bearing cylinder 2a. Attach the cover 8. The cover 8 has a pair of projecting pieces 8a on the cylinder peripheral surface,
The protrusions 8a are engaged with the edges of the hinge plate 2 to prevent them from rotating. In the state where the pair of hinge plates 1 and 2 are connected, the spacer ring 7 and the cover 8 are penetrated by the hinge shaft 3.

Referring to FIG. 5, the door 10 has three sets of door hinges A0.
An example is shown in which the door frame 11 is mounted using A1 and A2. Here, in the lower door hinge A0, the hinge shaft 14 inserted from below is caulked and fixed to the bearing tube 13a of the hinge plate 13 on the door frame 11 side, and the hinge tube 14 has the bearing tube 15a of the hinge plate 15 on the door 10 side. Is used for external fitting, and the door hinge of the present invention is used for upper and middle stages.

In this door support structure, after attaching the hinge plates 1 and 2 to the door frame 11 and the door 10, respectively, the hinge shaft 3 is inserted and inserted into the bearing tube 1a of the hinge plate 1 on the door 10 side. The door is assembled in the assembled state.
Specifically, the hinge shaft 3 is inserted into the bearing cylinder 1a in a state where the projection 4 provided on the outer periphery thereof does not match the vertical groove 5 of the bearing cylinder 1a, and the projection 4 is locked to the upper end edge of the bearing cylinder 1a to hinge. The shaft 3 is temporarily assembled. In this state, the bearing sleeve 15a of the hinge plate 15 on the door 10 side is fitted into the lowermost hinge shaft 14 to temporarily assemble the door 10. Next, the bearing cylinder 1a of the hinge plate 1 on the door 10 side is temporarily mounted on the bearing cylinder 2a of the hinge plate 2 on the door frame 11 side,
The weight of the door is applied to the hinge plate 2 on the side of the door frame 11, the bearing tube 1a on the side of the door 10 is aligned with the bearing tube 2a on the side of the door frame 11, and then the temporarily mounted hinge shaft 3 is rotated. The protrusion 4 is aligned with the vertical groove 5 of the bearing cylinder 1a, and the hinge shaft 3 is internally fitted and inserted into the bearing cylinder 2a on the door frame 11 side. The door hinge A0 at the lowermost stage may be changed to the door hinge of the present invention to perform door assembly.

(Other Embodiment) As shown in FIG. 6, only one protrusion 4 may be formed. Further, the vertical groove 5 into which the protrusion 4 is inserted can be replaced with a triangular groove formed when the bearing cylinder 1a is wound. FIG. 7 shows another embodiment in which the protrusion 4 is formed by a spring pin (shaft body) 17.
There, a hole 18 orthogonal to the shaft center is provided in the shaft portion of the hinge shaft 3, and a spring pin 17 longer than the diameter of the shaft portion is driven into the hole 18 to form a pair of protrusions 4. As the shaft body, other than the spring pin 17, a solid shaft, a screw shaft, a screw, or the like can be applied. The hole 18 may be inclined with respect to the axis of the hinge shaft 3. The head can be the protrusion 4 by using a pin with a head.

FIG. 8 shows another embodiment in which the protrusion 4 is provided on the bearing tube 1a side and the vertical groove 5 is provided on the hinge shaft 3 side. Specifically, the vertical groove 5 is formed in the lower half of the hinge shaft 3. The protrusion 4 is the bearing tube 1a.
The lower end of the inner surface of the shaft portion is bent inward so that the lower half of the shaft portion fits into the bearing tube 1a and is mixed in the temporarily assembled state. The protrusion 4 can be formed in the middle of the bearing tube 1a in the vertical direction.

A sleeve 1 as shown in FIG. 9 is attached to the bearing sleeve 1a.
When fitting 9 inward, the vertical groove 5 can be formed in the inner surface of the sleeve 19. The sleeve 19 can be formed of a plastic molded product or a metal processed product. By using the sleeve 19 having a C-shaped cross section, the gap between the free ends can be the vertical groove 5.

The hinge shaft 3 does not have to be a pin with a head, and a retaining ring attached to one end of the shaft can replace the head 3a. The door hinge may be a pipe hinge provided with three or more bearing sleeves, and when the uppermost bearing sleeve is provided on the door frame 11 side in the connected state, the hinge shaft 3 is temporarily assembled thereto.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a door hinge according to the present invention.

FIG. 2 is a partially cutaway front view of a hinge plate with a hinge shaft temporarily assembled.

FIG. 3 is a partially cutaway front view of the connected door hinges.

4 is a cross section taken along line BB in FIG.

FIG. 5 is an explanatory diagram showing a usage example.

FIG. 6 is a cross-sectional plan view showing another embodiment of the temporary assembly structure.

FIG. 7 is a front view showing a modification of the hinge shaft.

FIG. 8 is a partially cutaway front view showing another embodiment of the temporary assembly structure.

FIG. 9 is an exploded perspective view showing a modified example of the bearing sleeve.

[Explanation of symbols]

 1.2 Hinge plate 1a / 2a Bearing tube 3 Hinge shaft 3a Head 4 Protrusion 5 Vertical groove

Claims (6)

[Claims] 1. A hinge shaft which is fitted into a pair of hinge plates 1 and 2 and bearing sleeves 1a and 2a provided on both hinge plates 1 and 2 to connect the hinge plates 1 and 2 so as to be capable of relative swing. In the door hinge having 3 and 3, on the shaft surface around a predetermined distance from the insertion start end of the hinge shaft 3,
A door hinge characterized in that a protrusion 4 is provided, and a vertical groove 5 that allows the protrusion 4 to move up and down is formed on the inner surface of a bearing cylinder 1a that receives a shaft portion above the protrusion 4. 2. The door hinge according to claim 1, wherein a pair of protrusions 4 are integrally formed with the shaft portion by plastically deforming the shaft portion at opposite positions on the peripheral surface of the shaft portion of the hinge shaft 3. 3. A linear hole 18 is formed in the shaft portion of the hinge shaft 3, and a shaft body 17 is inserted and fixed in the hole 18 with at least one end projecting from the peripheral surface of the shaft portion. The door hinge according to claim 1, wherein the door hinge is formed. 4. The door hinge according to claim 1, 2 or 3, wherein a sleeve 19 is fitted in the bearing tube 1a, and a vertical groove 5 is formed on the inner surface of the sleeve 19. 5. A notch 6 for withdrawing and operating the hinge shaft 3 is formed in a part of the upper peripheral edge of the bearing cylinder 1a that receives the head portion 3a of the hinge shaft 3. Door hinges. 6. A pair of hinge plates 1 and 2 and a hinge shaft which is fitted in bearing cylinders 1a and 2a provided on both hinge plates 1 and 2 to connect the hinge plates 1 and 2 so as to be capable of relative swing. In the door hinge having 3 and 3, a protrusion 4 is provided on the inner surface of the upper bearing cylinder 1a that receives the hinge shaft 3, and a vertical groove that allows the protrusion 4 to be engaged on the lower half side of the shaft portion of the hinge shaft 3. Door hinge characterized in that 5 is formed.