JPS594138Y2 - Connection device for door body - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a device that connects two door bodies rotatably around axes perpendicular to the connection direction.

A large number of door bodies are sequentially connected so that the rear end of a rectangular plate-shaped door body is adjacent to the front end of another door body, and the adjacent door bodies are oriented at arbitrary angles to each other. The rotatably connected structure is used in folding doors, gate 5 partitions, etc. in which the door body is a structural unit.

In these products, there is a connector that rotatably connects each component to each other, and a connector that allows each component to roll lightly on the floor or ground when the entire door etc. is folded or extended. A free-wheeling vehicle is used.

However, since hinges are conventionally used as connectors, especially when a door is extended and closed, or when a closed gate receives wind in a direction perpendicular to the door surface, it is difficult for each door to be adjacent to each other. Strong forces in opposite directions act on the connectors of the structural units, applying unreasonable force to the hinges, causing them to bend,
There were drawbacks such as the possibility of rattling or the hinge fixing screw loosening and falling off.

In addition, in conventional folding cars and other swivel cars, separate from the hinges,
It was fixed directly to the bottom of the door etc. with screws, etc.

Furthermore, in order to maintain gates, etc. in a fully closed state, half open state, or fully open state, and prevent them from moving or expanding or contracting without permission due to external forces such as wind or their own weight,
Usually a drop lock is installed.

However, in the past, this type of drop lock was attached regardless of the hinge or swivel.

Therefore, in the conventional folding box, the hinge, the swivel wheel, and the drop lock are each attached separately, which has the drawback of requiring more man-hours and installation efforts.

This idea simply fixes the mounting part to the adjacent door body,
To provide a connecting device which rotatably connects each door body with sufficient connection strength against any force acting on the door body in any direction, and also allows a swivel wheel to be attached at the same time. With the goal.

This invention is applied to the above-mentioned folding door and gate 9 as a connecting device for door bodies that are rotatably connected so as to have any relative angle to each other and supported by a swivel wheel running on a flat surface. Can be used for partitions, etc.

Next, an embodiment in which this invention is applied to a folding gate will be described in detail with reference to the drawings.

In FIG. 1, 1 is the main pillar, dl, d2, . . . are the structural units of the folding gate.

The door body may be of any form, such as a grid-like structure having an arbitrary pattern as shown in the figure, or a panel-like structure.

Reference numerals 2 and 2' denote metal fittings that rotatably support the door body d1 located at the proximal end of the gate with respect to the support column 1.

A is a connecting device according to this invention, which bridges the adjacent door bodies d and d2 at their lower parts, and connects the door bodies d1.
d2 are rotatably connected to each other so that they can form an arbitrary angle with each other, and are integrally provided with a swivel wheel B.

A' is the adjacent door body d1 similar to the lower connecting device A.
．． an upper connecting device that rotatably cross-links d2 so that they can form an arbitrary angle with each other at the upper part thereof,
Its basic structure is the same as that of the lower connecting device.

Below, the lower connecting device A will be explained in detail.

The coupling device A has a horizontally extending coupling fitting 3, as shown in detail in FIG.

The connecting fitting 3 includes bearing portions 4a and 4b having vertical shaft holes at both ends in the longitudinal direction.

A rotary shaft 7a having a cap nut 5 fixed to the lower end with a pin 6 is rotatably inserted into one of the bearings 4a, with a washer 8a loosely inserted, and a washer 9a is inserted into the rotary shaft 7a protruding above the bearing 4a. After loosely fitting the U-shaped fitting 10 a
A nut 11a that passes through the bottom of the fixture and is joined to the bottom of the fixture is screwed into the nut, and a fixing pin 12 is attached to the nut.
The fitting 10a is integrally fixed to the rotating shaft 7a by passing through the hole a.

The rotating shaft 7a is fixed in the axial direction by the cap nut 5 and the fixture 10a, and is rotatable around the axis.

In addition, the other bearing part 4b has a mounting tool 10b attached to its upper end, similar to the rotating shaft 7a.

A rotating shaft 7b fixed by a pin 12b is rotatably inserted, and a washer 8b is loosely fitted to the rotating shaft protruding downward from the bearing part 4b, and then a sleeve 13 is fixed coaxially with a pin 14. A shaft 15 of a swivel wheel B is rotatably fitted into the lower part of the sleeve 13 and held by a spring washer 16 .

The rotating shaft 7b is fixed in the axial direction by the fitting 10b and the sleeve 13, and is rotatably rotated around the axis by the bearing portion 4b.
Moreover, the free wheel B is rotatable independently from the rotating shaft 7b.

Each of the fixtures 10 a and 10 b includes a first
Door body d1 in the illustrated embodiment. The lower part of the rear end and the lower part of the front end of d2 are respectively fixed.

Although the configuration for fixing is arbitrary, in the illustrated example, front plates 17 at the bottom of the door body are installed on both sides of the fixtures 10a and 10b.
With the front plate and rear plate 17' in contact with each other, and with the lower sides of the front and rear plates fixed at the bottom of the fixture, screw the screws 18 through the holes provided on both sides to secure them. ing.

In this way, the two door bodies d1. d2 is firmly connected by the connecting fitting 3 of the connecting device A, and is connected to the rotating shafts 7a and 7b.
Therefore, they are rotatable so that they can form any angle with respect to each other.

Holes 3a are provided at both ends in the longitudinal direction of the connecting fitting 3, and the holes 3a pass through the shaft holes of the bearings 4a and 4b from both end faces, respectively.A stop pin 3b and a spring 3C are inserted into the holes, and a screw 3d is inserted. At the same time, each rotating shaft 7
A, 7b are provided with semicircular recesses 3e corresponding to the stop pins 3b at intervals of 90° in the circumferential direction.

As a result, when the door bodies d1 and d2 are aligned in one plane, that is, when the gate is extended and closed, the stop pin 3b and one recess 3e face each other, and the urging force of the spring 3C causes the stop pin fits into the recess, so
Door body d1. Even if d2 is exposed to some wind, it will not lose its aligned state.

Moreover, the door body d1. When d2 are close to each other at right angles to the connecting fittings and parallel to each other, that is, when the gate is folded and opened, the rotating shafts 7a and 7b rotate and the stop pin 3b fits into the adjacent recess. , door body d1. The effect of maintaining d2 close to each other can be obtained.

Since the upper connecting device A' in FIG. 1 does not require a swivel wheel, instead of attaching the sleeve and swivel wheel on the left side in FIG. 2, cap nuts are installed on both sides of the connecting fitting 3 in the same way as on the right side in FIG. It is prepared.

Further, a lock holder 19 constituting a drop lock C is fixed to the longitudinal center of the connecting fitting 3, and a lock rod 20 is held in the lock holder 19 so as to be movable up and down.

On the road surface located below the connector A when the gate is closed,
The lock lever receiver is provided with a hole, and by guiding the locking piece 21 into the groove 22 and lowering the lock lever, it is possible to prevent the gate from moving due to strong winds.

When opening the gate, by lifting the locking rod 20 along the groove 22 and engaging it with the locking edge 23, it will not interfere with the We of the gate.

The figure shows only an example of the structure of the lock and its installation.

As mentioned above, according to this invention, the connecting fittings, the rotating shaft,
Since the components are a fixture, a nut, a sleeve, and a swivel wheel, the configuration is simple, and the rotating shaft is prevented from being removed by the fixture and the nut or sleeve, making assembly easy and preventing removal. The effect is also certain.

Furthermore, since both the nut and the sleeve can be fixed to the lower end of the rotating shaft, by fixing the nut to one rotating shaft and the nut or sleeve and swivel wheel to the other rotating shaft, the same Using the basic configuration, it can be used for both upper and lower door connections.

[Brief explanation of drawings]

Figure 1 is a perspective view of a part of a folding gate showing an example of how the coupling device of this invention is used, Figure 2 is a cross-sectional view of an embodiment of this invention, and Figure 3 is a view of the device with a drop lock attached. It is a side view which shows an example. A...Coupling, B...Mountain car, C...
...Locking lock, 3...Connection fittings, 4a...
...Bearing part, 7a...Rotating shaft, 10a...
...Mounting tool, 13a...Sleeve.

Claims (1)

[Scope of utility model registration request] A connecting fitting having bearing parts having axes perpendicular to the longitudinal direction at both ends in the longitudinal direction, a rotating shaft inserted into each bearing part of the connecting fitting so as to be rotatable about the axis, and a rotating shaft of each rotating shaft. a fitting for fixing to the door body fixed to a portion of the rotating shaft that projects upwardly from the bearing portion; a nut that is screwed to a portion of the rotating shaft that projects downwardly from the bearing portion; It consists of a sleeve fixed to a portion of the rotating shaft that protrudes downward from the other one of the bearing parts, and a swivel wheel having a shaft fitted into the sleeve so as to be rotatable independently of the rotating shaft. , each of the rotating shafts is made immovable in the axial direction by a fitting and a nut or a sleeve, and both the nut and the sleeve can be fixed to a portion of the rotating shaft that protrudes downward from the bearing portion. Features a connecting device for door bodies.