JPH079121B2 - Hinge - Google Patents

Description

TECHNICAL FIELD The present invention relates to a hinge used for a panel butting portion of a folding door.

(Prior Art) A folding door is provided to open and close an opening of a storage space such as a costume provided in a corner of a room. In such a folding door, a butting portion of two panels is connected by a hinge. Further, door wheels or pins are attached vertically to the opposite sides of the abutting portions of the respective panels, and the door wheels or pins are movably attached to rails or grooves of the upper and lower frames of the opening. In the hinge, the shaft guide cylinder integrally provided on the blade fixed to one panel and the shaft guide cylinder integrally provided to the blade fixed to the other panel are coaxial and the end faces thereof are in close contact with each other, It has a structure that passes through a shaft.

Further, a locking mechanism is provided between the blades so that the folding door is held in a closed state, that is, a state in which the surfaces of the panels form the same surface. In this locking mechanism, one blade is provided with a locking piece urged toward the other blade by a coil spring, and the other blade is provided with a locking portion for locking the locking piece. Is.

(Problems to be Solved by the Invention) The conventional hinge described above has a ceiling (or a sill) and a floor (or a sill) that form an opening for mounting a folding door, or a frame attached to these. In addition, there is a problem in that the force due to the strain is concentrated on the joint portion of the hinge of the folding door and the rotation resistance of the hinge increases, and the opening / closing operation of the folding door cannot be performed smoothly.

Further, the locking mechanism of the hinge needs to form a locking portion on the other blade, and requires a coil spring and a locking piece, which complicates the structure and has a large number of parts. There was a problem that it became expensive.

In view of the above problems, it is a first object of the present invention to provide a hinge that can be smoothly opened and closed even when there is a wheeled opening for mounting a folding door.

A second object of the present invention is to provide a hinge having a locking mechanism that has a simple structure and can be manufactured at low cost.

(Means for Solving the Problem) In order to achieve the first object, the first invention according to the present application fixes the first blade to the edge of one panel of the folding door and the second blade to the folding door. Is fixed to the edge of the other panel facing the edge, and a shaft guide tube is provided at the edge of the first blade facing the second blade, and the edge of the second blade facing the first blade is provided. A shaft guide cylinder having a space from the shaft guide cylinder, and the shafts of the first blade shaft guide cylinder and the second blade shaft guide cylinder slide on the shaft guide cylinder of at least one of the blades. It is characterized in that it is freely inserted, and a coil spring is provided by being wound around the shaft between the shaft guide cylinder of the first blade and the shaft guide cylinder of the second blade.

In order to achieve the second object, the second invention according to the present application fixes the first blade to the edge of one panel of the folding door, and the second blade to the edge of the other panel of the folding door. Fixed to the opposite edge of the first blade, an axis guide tube is provided at an edge portion of the first blade facing the second blade, and an axis guide tube is provided at an edge portion of the second blade facing the first blade, A shaft is inserted into the first and second shaft guide cylinders, a plate spring is provided at a position of the first blade facing the shaft guide cylinder of the second blade, and a locking portion is formed at a free end of the plate spring. Then
A protrusion or a recess is provided on the outer periphery of the shaft guide cylinder of the second blade so as to be elastically locked to the locking portion of the leaf spring when the folding door is closed.

(Operation) In the first invention according to the present application, as described above, a space is provided between the shaft guide cylinders provided on the opposing blades, and the shafts are slidably inserted into the respective shaft guide cylinders. Since the coil spring wound around the shaft is interposed between the shaft guide cylinders, both blades can move up and down relatively, and the panel forming a pair of folding doors can move up and down relatively. Therefore, the posture of the folding door can be changed by following the upper and lower wheels of the opening.

In the second invention according to the present application, when the folding door is opened, that is, when the paired panels are moved in the closing direction, the locking portion at the tip of the leaf spring attached to the first blade moves to the second position. The blade slides along the outer circumference of the shaft guide cylinder, and when the blade is closed, the locking portion of the leaf spring is elastically locked to the protrusion or the recess.

(Embodiment) FIG. 1 is a rear view showing an embodiment of a hinge according to the present invention, FIG. 2 is a sectional view taken along line AA, FIG. 3 is a plan view of FIG. 1, and FIG. A transverse cross-sectional view showing a state in which the hinge of the example is opened, FIG. 5 is a rear view showing a state in which a folding door using the hinge of the embodiment is closed (a view seen from inside the opening partitioned by the folding door), FIG. 6 is a rear view showing the same with the folding door open.

In FIG. 5 and FIG. 6, reference numerals 1 and 2 are panels constituting folding doors, and door wheels 5 and 6 for rolling along the upper and lower rails 3 and 4 are attached to upper and lower end sides thereof, respectively. The protruding joint portions of the panels 1 and 2 are foldably connected by a plurality of hinges 7.

Each hinge 7 is configured as follows. As shown in FIG. 1, the hinge 7 has a pair of first and second blades 8 and 9, which have mounting holes 20, and as shown in FIG. The blade 8 is fixed to the edge of one panel 1 of the folding door by a fixing tool such as a screw or a rivet, and the second blade 9 is similarly fixed to the opposite edge of the other panel 2 of the folding door to the edge.

As shown in FIGS. 1 to 4, the second blade of the first blade 8
Shaft guide cylinders 10 and 11 are provided above and below the edge portion facing the blade 9 of the second blade 9, and a space is provided between the shaft guide cylinders 10 and 11 in the middle portion of the edge portion of the second blade 9 corresponding to the first blade 8. A shaft guide cylinder 12 is provided, and the shaft 18 is inserted into the shaft guide cylinders 10 and 11 of the first blade 8 and the shaft guide cylinder 12 of the second blade 9 via the bush 14 to form the shaft guide cylinder.
A cap 15 is fitted between the upper part of 10 and the lower part of the shaft guide cylinder 11 to prevent the shaft 18 from coming off, and the second shaft guide cylinder 12 is vertically movable relative to the shaft 18. In addition, the shaft guide cylinder 10 of the first blade 8,
Coil springs 16 and 17 are provided around the shaft 18 between the shaft 11 and the shaft guide cylinder 12 of the second blade 9.

Further, a leaf spring 21 is fixed by a rivet 22 at a position of the first blade 8 facing the shaft guide tube 12 of the second blade 9, and a free end of the leaf spring 21 is bent in a dogleg shape. A ridge 24 that forms a stopper 23 and has a substantially mountain-shaped cross section that is locked to the locking portion 23 of the leaf spring 21 on the outer periphery of the shaft guide cylinder 12 of the second blade 9.
To form. A notch 25 is provided in a portion of the first blade 8 facing the locking portion 23 of the leaf spring 21 so as not to interfere with the bending operation of the leaf spring 21.

When this folding door is moved from the open state shown in FIG. 6 to the closed state shown in FIG. 5, the first and second blades 8 and 9 of the hinge are also moved as shown by the arrow B in FIG. It rotates, and the engaging portion 23 of the leaf spring 21 attached to the first blade 8 slides while pressingly contacting the outer circumference of the shaft guide cylinder 12 of the second blade 9 to form the double-dot chain line in FIG. As shown, the locking portion 23 rides on the ridge 24,
Further, in the closed state in which the plate surfaces of the panels 1 and 2 form the same plane, as shown in FIG. 2, the engaging portion 23 of the leaf spring 21 crosses the projection 24, and the engaging portion 23 is attached to the projection 24. Is locked, the panels 1 and 2 are prevented from moving in the opening direction, and the closed state of the folding door is maintained.

When opening the folding door, the protrusion 24 pushes the locking portion 23 of the leaf spring 21,
By bending the leaf spring 21 against the spring force, the protrusion 24 is disengaged from the locking portion 23.

As shown in FIG. 5, when the folding door has an opening, the door roller 5 moves along the curved rail 3 to move the first and second blades 8 of the hinge 7. , 9
Moves up and down against the spring force of the coil springs 16 and 17. That is, as shown in the example of FIG. 5, when the left side of the rail 3 in the drawing is raised, the panel 2 side is raised as indicated by the chain double-dashed line a, and as shown in FIG. The second blade 9 side of the is relatively raised above the first blade 8, the upper leaf spring 16 is compressed, and the lower leaf spring 17 is extended. As a result, the concentration of force on the hinge 7 due to the rails 3 and 4 is reduced, and a smooth opening / closing operation is ensured. Also, coil spring
16 and 17 are used when rails 3 and 4 do not have wheels.
It works so that the panels 1 and 2 are aligned at the same height.

FIG. 8 shows another embodiment of the present invention in which the coil springs 16 and 17 are removed from the embodiment shown in FIG. 1, and this embodiment also corresponds to the rails 3 and 4 of the opening. As a result, the panels 1 and 2 move up and down relatively and a smooth opening and closing operation is ensured, but there is no posture adjusting action when the opening is not crumpled. The engagement structure between the leaf spring 21 and the protrusion 24 can be applied to a structure in which the blades 1 and 2 do not move up and down relatively. Further, a recess may be provided instead of the protrusion 24 that locks the locking portion 23 of the leaf spring 21.

In addition, various modifications and additions are made to the specific shapes, structures or mutual combinations of panels, blades, shaft guide cylinders, shafts, leaf springs, locking parts, ridges, etc. within the scope of the present invention. It goes without saying that is possible.

(Effect of the Invention) According to the first invention of the present application, since the first and second blades are combined so as to be relatively vertically movable via the shaft guide tube, the shaft, and the coil spring, the folding door is Even when the opening to be installed has upper and lower wraps, the blades follow the wraps and the folding door can be smoothly opened and closed. In addition, the relative height of the pair of blades is automatically maintained by the leaf spring,
Since the posture is adjusted, there is no rattling of the folding door.

Further, according to the second invention of the present application, since the projection or the recess is formed in the shaft guide cylinder and the leaf spring is engaged with the projection or the recess, the structure is simple and the folding door is kept closed. The number of parts of the locking mechanism is reduced, and the price is reduced.

[Brief description of drawings]

FIG. 1 is a rear view showing an embodiment of a hinge according to the present invention, FIG. 2 is a sectional view taken along line AA of FIG. 1, FIG. 3 is a plan view of FIG. 1, and FIG. FIG. 5 is a cross-sectional view showing the hinge with the folding door open, and FIG. 5 is a rear view showing the folding door using the hinge of the embodiment in a closed state (a view seen from inside the opening partitioned by the folding door). 6 is a rear view showing the same with the folding door opened, FIG. 7 is a rear view illustrating the operation of this embodiment, and FIG. 8 is a rear view showing another embodiment of the present invention. 1, 2: Panel, 3, 4: Rail, 5, 6: Door car, 7: hinge, 8:
First blade, 9: Second blade, 10 to 12: Shaft guide cylinder, 14: Bush, 15: Cap, 16, 17: Coil spring, 18: Shaft, 20: Mounting hole, 21: Leaf spring, 23 : Locking part, 24: Ridge

Claims (2)

[Claims] 1. A first blade is fixed to an edge of one panel of the folding door, a second blade is fixed to an edge of the other panel of the folding door facing the edge, and a second blade of the first blade is fixed. A shaft guide tube is provided at an edge portion facing the blade, and a shaft guide tube is provided at an edge portion of the second blade facing the first blade with a distance from the shaft guide tube. A shaft is slidably inserted into the guide cylinder and the shaft guide cylinder of the second blade with respect to the shaft guide cylinder of at least one of the blades to form a shaft guide cylinder of the first blade and a shaft guide cylinder of the second blade. A hinge characterized in that a coil spring is provided by winding the shaft around the shaft. 2. A first blade is fixed to an edge of one panel of the folding door, a second blade is fixed to an edge of the other panel of the folding door opposite to the edge, and a second blade of the first blade is fixed. A shaft guide cylinder is provided at an edge portion facing the blade, a shaft guide cylinder is provided at an edge portion of the second blade facing the first blade, and a shaft is inserted into the first and second shaft guide cylinders. A leaf spring is provided at a position of the first blade facing the shaft guide cylinder of the second blade, and a locking portion is formed at a free end of the leaf spring, and the plate spring is provided on an outer periphery of the shaft guide cylinder of the second blade. A hinge having a ridge or a recess that is elastically locked when the folding door is closed.