JPH0371552B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a hinge used for a door, and provides a novel hinge having a locking mechanism for locking the door in the open position.

"Prior Art" and "Problems to be Solved by the Invention" A conventional hinge has two blades connected via a shaft so that they can be opened and closed, and one of the blades is attached to the edge of the door. Attach the other side to the edge of a pillar or building entrance.
The hinge supports the door and allows the door to be opened and closed.

Since the conventional hinge structure described above does not fix the door in the open position, the door may move or slam due to wind or vibration. Therefore,
Generally, a known door checker or stopper is attached to fix or lock the opening position of the door at a required opening angle, such as 90 degrees.

However, installing the above-mentioned door kickers and stops can cause tripping when passing by, become an obstacle when cleaning, and requires the effort of hooking and locking the door every time the door is opened. , opening and closing the door becomes cumbersome.

In addition, when attaching such fasteners, it takes time and effort to install them, and the door structure becomes complicated.In addition, the above-mentioned door kicker makes it difficult to install on gates, etc. There are many defects.

The purpose of the present invention is to solve the above-mentioned problems of the prior art, and to provide a new hinge incorporating a locking mechanism for locking the door in the open position.

``Means for Solving the Problems'' The present invention, which achieves the above objects, ``has a pair of tubular bearings that are vertically combined along a common axis, and is capable of opening and closing the pair of tubular bearings. In the hinge provided with a wing portion, the pair of tubular bearing portions are rotatable in conjunction with the tubular bearing portion on one side, and are rotatable relative to the tubular bearing portion on the other side. A common slide shaft is mounted in the middle of the slide shaft, which is always biased in the direction of A locking pin with both ends stored in storage notches is horizontally fixed to the tubular support, and a locking groove for receiving the end of the locking pin is formed at the edge of the other side of the tubular support. The present invention is characterized in that a locking structure is provided in which the locking pin and the locking groove engage with each other at a required opening position of the door to lock the door in the open position.

``Function'' The hinge of the present invention, which has the above-mentioned means as its essential parts, has a sliding shaft that is biased and rotates in conjunction with the tubular support on one side when the door is opened at any position. The door slides toward the tubular support on the side, and the locking pin of the slide shaft engages with the locking groove of the tubular support on the other side, so the door can be automatically locked in the open position.

"Example" A detailed explanation will be given below based on an example. Referring to FIGS. 1 and 2 showing one embodiment thereof, the hinge of the present invention has a pair of tubular bearing portions 2A2B that are combined on the upper side and the lower side along a common axis 2'. A blade portion 1A1B is provided in the vertical direction, respectively. And the upper tubular support part 2A
A door is attached to the wing portion 1A of the lower tubular support portion 2B, and the wing portion 1B of the lower tubular support portion 2B is configured to be attached and fixed to a pillar or the like.

A common slide shaft 3 is installed in the hollow part of the tubular support part 2A2B without any play, and the slide shaft 3 connects the tubular support part 2A2B to open the door attached to the wing part 1A. It is fitted so that it can be supported and slid in the vertical direction within the tubular support portion 2A2B. The slide shaft 3 has a deep slide groove 5 cut into the upper end.
is formed, and a fixing pin 6 fixed across the tubular support part 2A is fitted into the slide groove 5, and the slide shaft 3 is moved along the slide groove 5 relative to the tubular support part 2A. It is configured to be able to slide and rotate in conjunction with the tubular support portion 2A. On the other hand, the lower end of the slide shaft 3 is attached to a biasing bolt 7.
is attached along the axis 2', and a coil spring 10 is compressed and attached between the eastern part 8 of the biasing bolt 7 and the stepped part 9 in the hollow part of the tubular support part 2B. It is always urged toward the lower end of the tubular support portion 2B.

Further, a locking pin 12 is provided in a transverse manner through the intermediate portion of the slide shaft 3, with both ends protruding from both side surfaces of the slide shaft 3.
2 is always pressed against the upper edge of the tubular support 2B by the biasing force of the coil spring 10, and the slide shaft 3 is slidable vertically within the tubular support 2B. It is configured to be rotatable relative to 2B.

A locking pin 12 is provided on the lower edge of the tubular support part 2A that is in contact with the upper edge of the tubular support part 2B.
A storage notch 13 is formed to store both end portions of the tubular support portion 2A and 2B, and the opposite edges of the tubular support portion 2A and 2B are always in contact and joined as shown in FIGS. 1A and 1B. Then, as shown in FIG. 2, the blade portion 1A1B is relatively opened at the upper edge of the joined tubular support portion 2B, and when the door reaches the required opening angle θ (the opening angle shown in the figure is A locking groove 14 is formed to receive approximately the lower half of both end portions of the locking pin 12 of the slide shaft 3 which rotates in conjunction with the tubular support portion 2A.

The biasing force of the slide shaft 3 can be adjusted by adjusting the compression height of the coil spring 10 by rotating the biasing bolt 7. In addition, 11 in the figure is a washer interposed between the coil spring 10 and the stepped portion 9;
5 is a plug attached to both ends of the tubular support part 2A2B;
16 is a screw hole for fixing the blade portion 1A1B to a door or the like.

In the hinge of the present invention having the above configuration, if the locking groove 14 is formed to correspond to the required opening angle of the door, such as 90° or 180°, for example, when the door attached to the wing portion 1A is opened, When the blade part 1A is rotated with respect to the blade part 1B fixed to the pillar side, the slide shaft 3 remains biased toward the tubular support part 2B on the blade part 1B side and rotates with the tubular support part 2A on the blade part 1A side. The two ends of the locking pin 12 slide in pressure contact with the upper edge of the fixed-side tubular support 2B. When both ends of the locking pin 12 reach the position of the locking groove 14, the slide shaft 3 slides due to the biasing force of the coil spring 10, and as shown in FIG. The stop pin 12 fits into the lock groove 14. The locking pin 12 fitted into the locking groove 14
1A is subsequently subjected to the biasing force of the coil spring 10, so that the desired opening position of the blade portion 1A, that is, the desired position of the door can be locked. Since the locking action of the door is achieved by the sliding action due to the biasing force of the slide shaft 3, the relative distance between the illustrated L and the blade portion 1A1B is always maintained constant even when the door is opened, closed, and locked. , upper tubular bearing part 2A
can be assembled and connected by simply attaching it from above the slide shaft 3 that has been attached to the lower tubular support 2B in advance, making it easy to remove and attach doors attached to building entrances, etc., and to make repairs and replacements easier. In addition to being easy to use, when newly installed, the blade parts 1A1B can be separated and individually attached to doors or pillars, making it possible to assemble them with one touch on site.

Note that when closing the door that has been locked in the required opening position as shown in FIG. break away.

Note that in the configuration of the present invention, the locking groove 14
For example, the opening position of the door can be locked in multiple stages such as 45° and 90°, or the tubular support part 2A or 2B can be
In some cases, a ring-shaped cover body is fitted to the housing so that the storage notch 13 and the locking groove 14 are not visible from the outside.

``Effects of the Invention'' As explained above, the hinge of the present invention has a locking action by the locking pin 12 and the locking groove 14 at the required opening position of the door, so that the opened door can be exposed to wind and vibrations. There is no risk of the door moving and becoming half-open, closing, or slamming, and the opening position of the door is stable. Since the open position can be automatically locked only by the opening operation of the door, there is no need to worry about hooking on conventional fasteners, and the opening operation of the door becomes extremely simple.

Furthermore, since there is no need to provide accessories such as fasteners near the door, there are advantages in that there are no obstacles during passage, the door structure is simplified, and the door installation work is simplified.

Furthermore, since the hinge of the present invention simplifies the separation and connection of the tubular support part 2A2B, it becomes easier to install the hinge and the door when installing the door, and it also becomes extremely easy to maintain, inspect, and replace the door and the hinge. It has excellent effects.

[Brief explanation of drawings]

Figure 1: shows a hinge according to an embodiment of the present invention, A is its front view, B is its left side view, C is its top view,
D is a front sectional view of the same, FIG. 2 shows the hinge of the embodiment in FIG. Part, 3: Slide shaft, 5: Slide groove, 6:
Fixing pin, 7: biasing bolt, 10: coil spring,
12: Locking pin, 13: Storage notch, 14: Locking groove.

Claims (1)

[Claims] 1. In a hinge having a pair of tubular bearing parts that are assembled vertically along a common axis, and in which the pair of tubular bearing parts is provided with a wing part that can be opened and closed, the pair of tubular bearing parts have one side. A common common shaft that rotates in conjunction with the tubular bearing on the other side, is rotatable relative to the tubular bearing on the other side, and is always biased in the direction of the tubular bearing on the other side by a coil spring in the tubular bearing. A slide shaft is attached, and further, in the middle of the slide shaft, both ends are in pressure contact with the edges of the tubular support on the other side, and both ends are stored in storage notches in the tubular support on the one side. A locking pin is fixed horizontally, and an edge of the tubular support on the other side is provided with a locking pin.
A locking groove is formed to receive the end of the locking pin, and further includes a biasing force adjustment mechanism using a biasing bolt into which the coil spring is fitted, so that the locking pin can be engaged with the locking pin at a desired opening position of the door. A hinge that features a structure in which a stop groove engages and locks the door in its open position.