JPH0925756A - Door catch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly open or close a released folding door and keep it close state by providing a door catch at the lower end edge section of the door, and adjusting the protruded quantity of a coupling rod excited by a spring with an adjusting screw member. SOLUTION: An adjusting screw member 3 is provided in a case main body 2 coupled with a recessed hole 20a formed at the lower end edge portion of a door 20. The base end side coupling section 4a of a coupling rod 4 is inserted into the nearly-shaped recessed hole of the adjusting screw member 3, and a coupling latch section 4C is excited by a spring 6 and protruded from the end edge of the door 20. A receiving catch 10 is inserted between a coupling recess and a screw holding member 12 via a horizontal rib 30a from the end section opening of a rail 30, and it is moved to the prescribed position and fixed by a fixing bolt 11. The adjusting screw member 3 is rotated to adjust the protruded quantity of the coupling rod 4 so that the coupling latch section 4C is brought into no contact with the floor F when the door 20 is opened and it can be smoothly hooked on or released from the receiving catch 10. The coupling face of the receiving catch 10 is formed into a corrugated shape so that the coupling latch section 4C can be smoothly slid.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door catch for holding an unassembled folding door, a single-opening door or a double-opening door in a storage furniture such as clothes dance or a storage fitting such as a closet.

[0002]

2. Description of the Related Art For example, as shown in FIG. 10, a folding door has a structure in which a plurality of doors 50, 50 ...
The front end of the support pivot fixedly embedded in the upper and lower edge portions of 0 is fitted to the rail 51 or the like directly or through a bearing device. When the handle 57 of the door 50 is reached and opened in the direction of the rail 51, As shown on the left side of the figure, the support portion P of the movable door is configured to move along the rail 51 and be opened and closed.

A hinge 53 having a stopper function is usually used as a structure for holding such a folding door in a closed state or an opened state. According to the hinge 53 with the stopper function, the folding door 50 can be held in the fully closed state, the opened state at a predetermined angle, and the fully opened state.

Further, as another door catching structure, a roller is provided which is capable of retracting under the condition that it is biased toward the edge of the door, and this roller is engaged with the rail groove to maintain the fully closed state. It is described in Japanese Patent Publication No. 62-10384.

[0005]

Normally, the folding door is basically an even number of doors, and at least two doors are connected by hinges so that they can be freely opened and closed. As shown in FIG. 9, the door 52 at the end is disassembled,
It may be an open door. In such a case, there is a problem in that the hinge 53 with the stopper function cannot be applied to the door 52 which is not assembled.

Further, in the case of the roller type door catch, since the floor surface and the roller are constantly in contact with each other during the opening operation, there is a problem that the opening / closing operation is not smooth due to friction. Further, since the biasing force applied to the roller is always constant, the biasing force cannot be adjusted even if the gap between the underframe and the door changes due to a change over time, so that a good open / closed state can be maintained. Have problems such as difficulty.

On the other hand, as door catches for storage furniture and storage fittings, those having a structure of holding the door by suction by magnetic force are often used, but the magnetic surface of the receiving catch is erected so as to face each other. Therefore, there is a problem in that it becomes an obstacle when putting things in and out, and it does not look good.

[0008] Therefore, a main object of the present invention is to provide a door catch which is advantageous in that, for example, folding doors and hinged doors which are not assembled can be kept in a closed state and a smooth open / closed state can be maintained. .

[0009]

In order to solve the above problems, the present invention is directed to a receiving catch fixed to at least one of the upper and lower edges of the door and the front edge of the door and fixed to the corresponding underframe. A door catch that engages with a member and holds the door in a closed state, wherein the door catch has a hollow hole in which a thread groove is formed at least in a part, and is formed at a door mounting portion. A case body fitted and installed in the recessed hole, an adjusting screw member screwed into the thread groove forming portion of the hollow hole, and movable in the axial direction of the hollow hole with respect to the adjusting screw member. And an engaging rod which is non-rotatably engaged with each other at the base end side and which projects outward from the door edge in a biased state by the attached elastic means. is there.

Therefore, in the present invention, the door is held in the closed state by the engaging rod that can be retracted while being urged to engage with the receiving catch on the underframe side. Further, since the engaging rod and the adjusting screw member are not rotatable relative to each other, that is, the adjusting screw member for rotating the engaging rod is engaged in a state of integrally rotating, the engaging rod is rotated. Then, the protrusion amount of the engaging rod can be adjusted by moving the adjusting screw member. When adjusting the amount of protrusion, keep the door smooth by adjusting the engagement rod so that it does not come into contact with the floor surface when it is disengaged from the receiving catch, and the engagement force is such that it can be easily opened and closed manually. It can be kept open and closed.

In this case, for the convenience of adjusting the amount of protrusion, by forming a groove for locking the wrench in the protruding portion of the engaging rod, the engaging rod can be easily rotated by using a dedicated spanner. . Further, by making the protruding portion of the engaging rod have a hexagonal cross section, the engaging rod can be rotated by a general-purpose hexagon spanner.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail as being applied to an unassembled folding door. In FIG. 9, when the folding door is composed of a set panel in which the doors 50, 50 are connected as a set by a hinge 53 and a door 52 which is removed from the set because of the opening size, the door catch 1 according to the present invention is , The upper and lower parts of one side end are fixed by the rotary support shaft 54,
The door 52 is rotatably supported, and is provided, for example, at a lower end portion of a door tip (door tip side portion of a lower edge) and is used to hold the door 52 in a closed state. In addition, door catch 1
Can be provided at the upper end of the door end or both the upper and lower ends of the door end.

As shown in FIG. 1 or 5, the door catch 1 has a recessed hole 2 formed in the lower edge portion of the door 20.
0a, the case main body 2 inserted and installed in the case main body 2, the adjusting screw member 3 provided in the case main body 2, and the spring 6 urged by the spring 6 interposed at one end of the adjusting screw member 3 to urge the door. The engaging rod 5 projects outward from the end edge.

The case body 2 is a tubular body having a fixing flange 2a at one end and a hollow hole extending from one end to the other end, and a adjusting hole is provided on the base end side (fitting side) of the hollow hole. A screw groove 2b is formed so that the screw member 3 is screwed therein. As shown in the drawing, the fixing flange 2a side is directed outward and is inserted into the door 20 by pushing, and the fixing seat plate 5 is engaged with the fixing flange 2a. It is fixed by screwing a screw through a screw hole formed in the seat plate 5.

Next, as shown in detail in FIG. 3, the adjusting screw member 3 is a columnar member having a thread groove 2d formed in a part of its peripheral surface, and is generally open to the side. A U-shaped recess 3a is formed, and a substantially U-shaped notch 3c that also opens laterally is formed in the engagement rod side partition wall portion 3b of the substantially U-shaped recess 3a. By engaging the base end engagement 4a and the shaft portion 4b of the engagement rod 4 which will be described later from the side, both are engaged.

As shown in FIG. 4, the engaging rod 4 has a proximal end engaging portion 4a which engages with the substantially U-shaped recess 3a and a spring 6 which are inserted from the proximal end side. A shaft portion 4b having a rectangular cross section that engages with the substantially U-shaped notch 3c,
It is composed of an engaging latch portion 4c which engages with the receiving catch 10 mounted on the rail side. Grooves 4d and 4d for engaging with a dedicated spanner are formed in the engaging latch portion 4c as described later.

For assembling the respective parts constituting the door catch 1, as shown in FIG. 5, after the spring 6 is inserted into the shaft portion 4b of the engaging rod 4, the adjusting screw member 3 is adjusted. Substantially U-shaped concave hole 3a and substantially U-shaped notch 3
The proximal end engaging portion 4a and the shaft portion 4b of the engaging rod 4 are fitted into and engaged with c from the side. If the adjustment screw member 3 comes into contact with the thread groove 2b of the hollow hole while penetrating into the hollow hole of the case body 2 in this engaged state, the adjustment rod 4 is rotated to make the adjustment. Screw member 3
Is rotated, and the adjusting screwing member 3 is screwed into the screw groove 2b. By adjusting the screwing amount of the adjusting screwing member 3, the projecting amount of the engaging rod 4 and the engaging condition with respect to the receiving catch 10 are adjusted. The protrusion amount of the engagement rod 4 is set such that the door 20 does not come into contact with the floor F and can be smoothly engaged with and disengaged from the catch 10 with the door 20 opened. For rotation of the engaging rod 4, as shown in FIG. 7, a dedicated spanner 7 is used to rotate the engaging latch 4 of the engaging rod 4.
It is performed by hooking and rotating the dedicated spanner 7 with respect to the spanner grooves 4d, 4d ... Formed on the peripheral surface of c.

On the other hand, as shown in FIG. 6, the receiving catch 10 has bolt through holes 10a and 1a at both ends thereof, respectively.
0a, and the engaging rod 4 is provided at a substantially central portion.
Has an engaging recess 10b. When mounting on the rail 30, the fixing bolts 11, 11 are inserted into the bolt through holes 10a formed in the receiving catch 10 and are connected to the screw waiting member 12 arranged on the back surface side through the screwing portions. Then, after inserting the horizontal rib 30a between the receiving catch 10 and the screw waiting member 12 from the end opening of the rail 30 and moving it to a predetermined position on the rail, the fixing bolt 11 is attached. The horizontal rib 30a is clamped and fixed by screwing.

The sliding surface of the engaging rod 4 which is pulled out from the engaging recess 10b of the receiving catch 10 is formed in a wave shape so that the abutting engaging rod 4 slides smoothly. .

The door catch 1 can be variously modified without departing from the scope of the present invention. For example, as shown in FIG. 8, the adjusting screw member 3 may be replaced with an adjusting screw member 8 having a substantially U-shaped cutout 8d that is opened laterally. Further, as shown in FIG. 9, the protruding portion 4e of the engaging rod 4 may have a hexagonal cross section. In this case, the engagement rod 4 can be easily rotated by a general-purpose hexagon spanner.

By the way, the applicable range of the door catch 1 according to the present invention can be applied not only to folding doors but also to opening doors such as single-opening doors or double-opening doors. In such a case, FIG.
As shown in, the receiving catch 10 is embedded and fixed on the underframe side.

[0022]

As described above in detail, according to the present invention, for example, folding doors of unassembled or doors of hinged doors are kept in a closed state, and in the opened state, the floor surface and the door catch do not come into contact with each other. Opening and closing operations are also smooth. Further, since the corresponding receiving catch can be made small, there are advantages that it does not get in the way when putting things in and out, and that it looks good.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a door catch according to the present invention.

FIG. 2 is a view taken along the line II-II in FIG.

FIG. 3 is a perspective view of an adjusting screw member.

FIG. 4 is a perspective view of an engagement rod.

FIG. 5 is an assembly view of a door catch device.

FIG. 6 is a perspective view showing how to assemble the receiving catch.

FIG. 7 is a diagram of a rotating operation procedure using a spanner.

FIG. 8 is a modification view of the door catch.

FIG. 9 is a modification view of the door catch.

FIG. 10 is an explanatory diagram of a folding door.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Door catch, 2 ... Case main body, 3/8 ... Adjustment screw member, 3a ... Almost U-shaped recessed hole, 4 ... Engaging rod, 4a ... Base end side engaging part, 4b ... Shaft part, 4c ... Engagement Fitting latch part, 5 ... Fixing seat plate, 6 ... Spring, 10 ... Receiving catch, 10b
... engaging recess, 20 ... door, 20a ... recessed hole

Claims (3)

[Claims] 1. A door for holding a door in a closed state by being fixed to at least one of the upper and lower edges of the door and the edge portion of the door and engaging with a receiving catch member fixed to the corresponding underframe side. A catch, wherein the door catch has a hollow hole having a thread groove formed in at least a part thereof, the case main body being fitted and installed in a concave hole formed in a mounting portion of the door, and the hollow hole. An adjusting screw member that is screwed to the thread groove forming portion, and a proximal end side that engages with the adjusting screw member so as to be movable in the axial direction of the hollow hole and not rotatable relative to each other, A catch for a door, comprising: an engaging rod projecting outward from the edge of the door in a biased state by the attached elastic means. 2. The door catch according to claim 1, wherein a groove for locking a wrench is formed in a protruding portion of the engaging rod. 3. The door catch according to claim 1, wherein at least a protruding portion of the engaging rod has a hexagonal cross section.