JPH07331946A - Hinge - Google Patents

Abstract

PURPOSE:To make fitting and detaching of a door easy by forming the lower end of a hinge shaft into a taper shape so as to be an insert guide part, and interposing a ring between an upper cylinder part and a lower part so as to be a slip off preventing stopper of the hinge shaft. CONSTITUTION:A fitting plate 1a having a lower cylinder part 3a is fixedly secured to a frame body 15, a fitting plate 1 having an upper cylinder part 3 is fixedly secured to a door body 14, and a hinge shaft 6 is inserted through the upper and lower cylinder parts 3, 3a so as to form a hinge. The hinge shaft 6 is provided with a taper guide part 8 on its extreme end, so as to easily insert it into the lower cylinder part 3a, and a ring 12 having slip-off preventing function is fitted thereon so that the hinge shaft 6 is not slipped off from the upper cylinder part 3 and the ring 12 is not omitted from the hinge shaft 6. When the door 14 is fitted to the frame 15 (or detached from), the door 14 is a little lifted up by (H) so as to fit or detach the hinge shaft 6 to or from the lower cylinder. Hereby, fitting or detaching of the door 14 can be easily carried out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge for rotatably attaching a door to a supporting frame.

[0002]

2. Description of the Related Art A door-side mounting plate for mounting a door having an upper tubular portion for inserting an upper portion of a hinge shaft and a lower tubular portion for inserting a lower portion of the hinge shaft. A frame-side mounting plate for mounting, and a hinge shaft for inserting the lower tubular portion and the upper tubular portion in a concentric state and inserting them into a hinge to attach them to each other. Then, the frame-side mounting plate of the hinge is fixed to the frame, and the upper part of the hinge shaft, which is inseparable from this mounting plate, projects from the lower tubular portion thereof. On the other hand, a door-side mounting plate having an upper tubular portion that fits with the hinge shaft is fixed to the door. If the door is lifted by the protruding length of the hinge shaft, the door can be attached / detached to / from the frame very easily.

However, if there is an obstacle around the door and it is difficult to lift the door, there is a problem that the mounting plate must be removed from the door.

In order to solve this problem, the hinge shaft of the hinge is detachably inserted into any of the tubular portions provided on both of the mounting plates, and even if the door is not lifted, the hinge shaft can be attached and detached similarly. There is one that allows you to attach and detach the door from the frame very easily.

[0005]

The hinge shaft, which is separate from the door-side and frame-side mounting plates, is sometimes lost during work and is inadvertently dropped onto the floor or the ground to prevent dust from hinged. There is a problem that it adheres to the grease on the shaft. There is also a problem that when the hinge shaft is pulled out, the buffer spacer ring used between the tubular portions of both mounting plates falls out and is lost. When the door is attached to the frame, it is difficult to align the shaft centers of the tubular portions of both mounting plates while supporting the heavy door and to insert the hinge shaft from a high position. The solution of these points is desired.

The present invention has been made to solve the above-mentioned problems (technical problems) of the prior art, and prevents the hinge shaft from being inadvertently pulled out from the door-side mounting plate, thereby preventing the hinge shaft from being removed. It is an object of the present invention to provide a hinge which prevents loss and adhesion of dust to this and at the same time facilitates door installation work.

[0007]

In order to achieve the above object, a hinge according to the present invention comprises a door-side mounting plate for mounting a door, which has an upper cylinder portion for inserting an upper portion of a hinge shaft. A frame-side mounting plate for mounting a frame, which has a lower tube portion for inserting the lower part of the hinge shaft, and the lower tube portion and the upper tube portion which are concentric with each other, and are inserted into them to insert the both. In a hinge provided with a hinge shaft for making a hinge, a lower end of the hinge shaft is tapered to form a guide portion, and a ring groove is formed at a position slightly above the guide portion, which is normally located in the lower tubular portion. On the other hand, the inner diameter is made smaller than the outer shape of the hinge shaft so as to be fitted in the ring groove, and the outer diameter is made larger than the inner diameters of the both cylindrical portions so that they can be contacted in the axial direction. Is elastically expandable to allow close fitting with the above hinge shaft Comprising a by Aru ring, the ring is normally and so as to position in the state of being inserted into the hinge shaft between the two cylindrical portions.

[0008]

When the door is removed from the frame, the operator pulls up the lower part of the hinge shaft upward from the lower tube portion of the frame side mounting plate attached to the frame. When the lower end of the hinge shaft is located above the lower tubular portion, the ring fits in the ring groove, and the frictional force between the hinge shaft and the ring is reduced. The operator feels the reduction of the frictional force, lifts the door side mounting plate together with the door by a slight length at the lower end, and removes the door from the frame. The ring fitted in the ring groove prevents the hinge shaft from coming off from the upper cylinder portion of the door side mounting plate. When the door is attached to the frame, the worker places the lower end guide portion of the hinge shaft on the upper end of the lower tubular portion and pushes the hinge shaft downward against the frictional force between the hinge shaft and the ring. The upper part and the lower part of the hinge shaft are respectively inserted into the upper cylinder part and the lower cylinder part, and the ring closely fits the hinge shaft between both cylinder parts and also serves as a cushioning spacer between both cylinder parts. Function.

[0009]

EXAMPLES Examples of the present application will be described below with reference to FIGS. The door-side mounting plate 1 formed of a metal plate material is formed continuously with the plurality of holes 2 for inserting wood screws as the mounting means and the upper half of the edge of the mounting plate 1 (or by fixing a separate cylindrical object thereto). The upper tubular portion 3 is provided. In this embodiment, the upper tubular portion 3 is formed by bending a part of the plate material of the door-side mounting plate 1 into a tubular shape, and serves as an axial guide groove 4 that is a V-shaped groove 4 that is long in the axial direction (see FIG. 7) is formed along the bent tip 3f and the inner surface of the upper tubular portion 3. When the V-shaped groove 4 is not conveniently formed, or when the upper cylinder portion 3 is formed of a pipe, the guide groove is formed as a groove 5 by cutting in another place on the inner surface of the upper cylinder portion 3. May be.

The frame-side mounting plate 1a is configured substantially the same as the door-side mounting plate 1, and the subscript a is used to distinguish the members of the frame-side mounting plate 1a. The cylindrical hinge shaft 6 made of metal is formed so as to be slidable up and down in the tubular portions 3 and 3a (slightly thinner than the inner diameter). The upper end is provided with a retaining head 7 and the lower end is provided with a tapered guide portion 8, and a ring groove 9 is formed slightly above the guide portion 8. The cross-sectional shape of the groove 9 is such that the upper half 9a has a gentle slope for easy guiding and the lower half has a steep slope. Hinge shaft 6
Has a dimension close to the sum of the lengths of the cylindrical portions 3 and 3a. The engaging protrusion 10 fitted to the V-shaped groove 4 or the groove 5 is
The hinge shaft 6 is provided slightly above the center by press working (or adding means by welding). This engagement protrusion
10 may be a pin driven into the hinge shaft. A bottom plate 11 having the same appearance as the head 7 is fixed to the lower end of the lower cylindrical portion 3a. The sound deadening ring 12 made of plastic is formed of a material that can be contracted in the radial direction, or is provided with a plurality of circumferential escape spaces 13 in order to make the contraction possible. The ring 12 forms a tight fit with the hinge shaft 6 (slides on the shaft when a strong force is applied and keeps stopped in a natural state) and an inner surface 12a having an inner diameter suitable for fitting with the ring groove 9. Also, the protrusion 12a may be formed if necessary. Further, the outer diameter dimension thereof is larger than the inner diameters of the cylindrical portions 3 and 3a so as to come into contact with the facing surfaces 3c and 3b of the cylindrical portions 3 and 3a.

The hinge F having the above structure is used as follows. As is well known, the mounting plates 1 and 1a are fixed to the door 14 and the pillar or the door frame 15 in advance. Before the hinge F is used, the lower half part of the hinge shaft 6 is inserted into the upper cylinder part 3 as shown in FIG. 6, and the ring 12 is positioned in the ring groove 9 in a fitted state and engaged. As shown in FIGS. 4 and 7, the protrusion 10 engages with the upper edge 3d of the upper tubular portion 3 to prevent the hinge shaft 6 from descending. Since the escape space 13 does not contract radially, the ring
The inner diameter of 12 (or the protrusion 12a) is slightly smaller than the diameter of the hinge shaft 6 and is fitted into the groove 9 so as to be integrated, so that the ring 12 does not fall off from the hinge shaft 6. The hinge axis 6 is therefore
It will not be accidentally pulled out above the tubular portion 3 or fall out.

Next, the operator moves the door 14 and fits the tapered guide portion 8 into the hole edge of the upper end portion 3b of the lower cylinder portion 3a on the frame side as shown in FIG. Align the axes of 3 and 3a. When the lifting force of the door 14 is loosened, both end faces of the ring 12
It contacts the lower end surface 3c of the tubular portion 3 and the upper end surface 3b of the tubular portion 3a.
The operator rotates the hinge shaft 6 to bring the engaging protrusion 10 directly above the V groove 4, and presses the hinge shaft 6 downward forcefully. Then, the inner surface 12b of the ring 12 expands by the action of the circular arc groove 9 and moves to the outer periphery of the upper portion 6b of the hinge shaft 6 against the frictional force of the groove 9. As a result, the hinge shaft 6 is inserted into the lower tubular portion 3a. The escape space 13 contracts in the radial direction, and the inner surface of the ring 12 elastically and closely fits the hinge shaft 6. The hinge has a vertically symmetrical appearance as shown in FIG. This form of hinge F
Are attached to the door 14 and the frame 15 by screws through the holes 2 and 2a. Therefore, the door 14 becomes rotatable around the hinge shaft 6, and the ring 12 formed of the sliding material between the two tubular portions 3 and 3a functions as a buffer spacer. When the door 14 is detached from the frame 15, the operator can move the hinge shaft 6
Using the integrally formed brim-shaped head 7 at the upper part, a part 6c of the hinge shaft 6 is pulled out upward from the lower cylindrical portion 3a of the frame side mounting plate 1a mounted on the frame 15. When the guide portion 8 reaches the upper end of the lower tubular portion 3a, the ring 12 fits into the ring groove 9 and the ring 12 is fixed to the hinge shaft 6. The operator feels this change in frictional force, and attaches the door side mounting plate 1 together with the door 14,
The guide 14 is lifted by a slight length, and the door 14 is removed from the frame 15. Since the hinge shaft 6 has the ring 12, it does not accidentally fall out of the door side mounting plate 1. When the door 14 is reattached to the frame 15, it is as before.

[0013]

As described above, according to the present invention, the door 14
When removing from the frame 15, the lower half 6c of the hinge shaft 6 can be freely inserted into and removed from the lower tubular portion 3a attached to the frame 15. It has the advantage that it can be very easily removed from and attached to the frame 15 by only moving it up and down by a slight length (H). Since the tapered guide portion 8 naturally fits into the upper end of the lower tubular portion 3a, the operator can easily align the axes of the tubular portions 3 and 3a while supporting the heavy door. . Furthermore, even when the door 14 is removed from the frame 15, the ring 12 fits in the ring groove 9 of the hinge shaft 6 and prevents the hinge shaft 6 from coming off. There is also an advantage that it is not lost excessively and does not drop on the floor surface, and therefore dust and the like do not adhere to the grease of the hinge shaft 6.

[Brief description of drawings]

FIG. 1 is a plan view of a door and a frame to which a hinge of the present invention is attached.

FIG. 2 is a partially cutaway front view of a hinge.

FIG. 3 is a front view of the hinge in which the upper half of the hinge shaft is pulled out and the door-side mounting plate is lifted by the length of the engaging protrusion.

4 is a sectional view taken along line BB of FIG.

5 is a sectional view taken along line CC of FIG.

FIG. 6 is a front view of the hinge in which the upper half of the hinge shaft is pulled out and a part thereof is broken.

7 is a cross-sectional view taken along the line AA of FIG.

FIG. 8 is an AA in which an engaging protrusion is located right above a V-shaped groove.
Sectional view.

[Explanation of symbols]

 1 Door side mounting plate 1a Frame side mounting plate 3 Upper cylinder part 3a Lower cylinder part 6 Hinge shaft 8 Guide part 9 Ring groove 12 Ring 14 Door 15 Frame

Claims (1)

[Claims] 1. A frame having a door-side mounting plate for mounting a door, which has an upper cylinder portion for inserting an upper portion of the hinge shaft, and a lower cylinder portion for inserting a lower portion of the hinge shaft. A hinge provided with a frame-side mounting plate for mounting, and a hinge shaft for inserting the lower cylinder part and the upper cylinder part in a concentric manner and inserting them into a hinge, and a lower end of the hinge shaft. Is tapered to form a guide part, and a ring groove is formed slightly above the guide part at a position that is normally located in the lower tubular part, while the inner diameter is smaller than the outer shape of the hinge shaft to form a ring groove. The outer diameter is larger than the inner diameter of both cylinders so that they can be contacted in the axial direction, and the inner diameter is elastically expandable to ensure a tight fit with the hinge shaft. It is equipped with a ring that is enabled, which ring is normally placed between the two cylinders above. A hinge characterized by being positioned while being inserted through the hinge shaft.