JPH10238196A - Latching device for folding door and locking device thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the damage of a floor face and a latch due to the latch projected from the lower end section of the rail of a lower frame at the time of the opening of a folding door, and to obviate further swinging to the closing side under the state, in which the folding door is closed, when the level of the upper end of the rail is aligned with the floor faces of rooms on both sides. SOLUTION: The latching device is composed of a rod 1 arranged into a stile 7 vertically movably, a latch 2 lifted and lowered while being interlocked with the rod 1, and a spring 3 upwards urging the rod 1 and the latch 2. The latch 2 is brought down and engaged with the rail 61 of a lower frame 6 when the upper end of the rod l is brought into contact with the rail 51 of an upper frame 5, and the latch 2 is elevated and detached from the rail 61 of the lower frame 6 when the upper end of the rod 1 is separated from the rail 51 of the upper frame 5. A groove 21 capable of being engaged with the opening side and closing side of a 'shoji' screen is formed to the rail 61 of the lower frame 6 on the underside side of the latch 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an empty fastening device for emptying a folding door used in a bathroom or the like and a locking device for locking the folding door.

[0002]

2. Description of the Related Art A folding door is housed at an upper end and a lower end, and latches urged toward an upper frame side and a lower frame side engage with rails for guiding the movement of the door bogie. In order to prevent tripping at the lower frame position, the level of the room on the side where the folding door overhangs when opened, for example, the floor of the bathroom and the floor of the opposite room, to prevent tripping at the lower frame position If the level of the upper end of the rail of the lower frame is aligned with both floors, the latch protruding from the lower frame will contact the floor when the folding door is opened, and the floor and the latch will be damaged. .

[0003] The contact between the latch and the floor can be avoided by removing the latch at the lower end, but without the latch, the sliding door and the lower frame are not engaged in the closed state of the folding door. And the air flow causes fluttering, and the resulting gap between the shoji and the lower frame lowers the watertightness between the two.

[0004] If there is no step between the upper level of the rail of the lower frame and the two floor surfaces, the latch coming and going from the lower end gets over the rail and when the folding door is closed, the folding door moves to the closing side. Since the door stop to be prevented cannot be installed in the lower frame, the folding door may swing further to the closing side in a closed state.

The present invention proposes an empty fastening device and a locking device for preventing damage to a floor or a latch and swinging of a folding door at the time of closing in view of the above background.

[0006]

According to the first aspect of the present invention, the latch is housed at the lower end position of the folding door so as to freely enter and exit the lower frame, and when the folding door is closed, the latch is engaged with the rail of the lower frame. By putting it in the lower end position of the folding door when opening it and avoiding collision with the floor on the open side of the folding door,
Ensuring the engagement between the sliding door and the lower frame when the folding door is closed while preventing damage to the floor and the latch, and forming a groove on the lower surface side of the latch prevents the sliding of the sliding door when the door is closed I do.

The empty fastening device is provided with a rod which can be moved up and down in the vertical frame of any of the sliding doors in the folding door, and is housed at the lower end position of the sliding door so as to be able to move in and out of the lower frame, and moves up and down in conjunction with the rod. A latch and a spring for urging the rod or the latch upward and holding the latch at the lower end position of the shoji. The latch descends when the upper end of the rod contacts the rail of the upper frame and engages with the rail of the lower frame, and rises when the upper end of the rod separates from the rail of the upper frame and separates from the rail of the lower frame. .

On the lower surface side of the latch, a groove is formed in the rail of the lower frame so as to be able to engage with the open side and the closed side of the shoji, and the folding door is closed by the latch also engaging the rail with the closed side of the shoji. In this state, it is possible to prevent a situation in which the vehicle further swings toward the closing side.

When the folding door is in the closed state, the lower end is restrained by the lower frame by the latch engaging the rail with the open side and the closing side of the sash, and the stability of the lower end side of the folding door is maintained. Is secured, and the occurrence of fluttering and the resulting reduction in water tightness between the shoji and the lower frame are prevented.

According to a third aspect of the present invention, there is provided an apparatus for locking an empty fastening device, wherein the rod is lowered and the lift of the rod or the latch is restrained when the latch is engaged with the rail of the lower frame. And prevent the folding door from opening.

[0011] The folding device of the folding door is usually a real hokkaido 4-36376
Since the lock device is installed independently of the latch as shown in FIG. 3, it is necessary to store a plurality of components for forming the locking device in the vertical frame. Therefore, the mechanism is simplified, and the configuration of the device is also simplified.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An empty fastening device according to a first aspect of the present invention comprises a rod 1 which can be lifted and lowered in a vertical frame 7 of any one of folding doors as shown in FIG. It is composed of a latch 2 that is housed in the frame 6 side freely and moves up and down in conjunction with the rod 1 and a spring 3 that urges the rod 1 or the latch 2 upward. It is to be kept closed. Although the case where the folding door is a bathroom door is shown in the drawing, the installation target of the folding door is not limited to the bathroom.

Since the rod 1 straddles from the lower end position to the upper end position of the shoji, it is disposed inside any of the vertical stiles 7 of the shoji and is held by the vertical stile 7 so as to be able to move up and down. In the drawing, it has a contact surface that slopes downward from the open side to the closed side,
Although the sliding piece 4 that contacts the rail 51 is connected to the upper end of the rod 1, it is not necessary to connect the sliding piece 4 if a similar contact surface is formed on the upper end surface of the rod 1. In addition, as shown in FIG.
The rod 1 has a cross-sectional shape, but the cross-sectional shape of the rod 1 does not matter.

The latch 2 is connected directly or indirectly to the lower part of the rod 1 as shown in the figure, or is integrally formed as a part of the lower part of the rod 1, and moves up and down in conjunction with the raising and lowering of the rod 1. From the lower end of the vertical frame 7 or the lower end of the lower frame 8 to the lower frame 6 side. The latch 2 only has to interlock with the rod 1 and does not necessarily need to be located on an extension of the rod 1.

The spring 3 directly or indirectly locks the rod 1, the sliding piece 4, or the latch 2 and the vertical frame 7, and urges the rod 1 or the latch 2 upward, thereby causing the latch 2 to slide. At the lower end position. As the spring 3, a leaf spring, a disc spring, or another spring is used in addition to the coil spring. In the drawing, the spring 3 is locked to a fixed piece 9 and a sliding piece 4 fixed to the vertical frame 7.

On the lower surface side of the latch 2, the shoji is closed, and when the latch 2 is lowered, a groove 21 is formed on the rail 61 of the lower frame 6 so as to engage the open side and the closed side of the shoji. The latch 2 is engaged with the rail 61 in both the open side and the closed side of the sash to ensure stability in the closed state of the sash, and is particularly closed when closed by engaging the sash in the closed side. The collision with the lower frame 6 and the floor of the closed room due to the movement to the side is avoided.

The floor surface of the room where the folding door is opened is aligned with the floor surface of the room on the opposite side for the purpose of preventing stumbling, and the step between both floor surfaces is suppressed. This step is allowed up to about 3 mm, which is negligible for traffic. At the same time, the level of the upper end of the rail 61 of the lower frame 6 is set such that the sliding door is at the level of both floors.

Since the level of the upper end of the rail 61 of the lower frame 6 is aligned with the level of both floors, in order to secure the engagement with the rail 61 when the sash is closed and the latch 2 is lowered, When the sliding door is open as shown by a two-dot chain line in FIG. 1, the level of the lower end of the latch 2 is located below the lower end of the vertical frame 7 or the lower frame 8.

The lower frame 6 is located on the side where the folding door closes, and the prospective piece 62 located at the level of the floor of the room on that side, and the folding door is opened with a groove interposed between the prospective piece 62. The rail 61 is located on the side and has the level of the upper surface and the upper end of the prospective piece 62 aligned. The folding door is connected to the lower end of the vertical frame 7 on the door end side. A door roller (not shown) slides along the rail 61 of the lower frame 6, and the door roller connected to the upper end thereof moves along the rail 51 of the upper frame 5. Open and close by sliding. In FIG. 1, reference numeral 11 denotes a grating installed in a bathroom.

A pocket is provided on the bathroom side of the prospective piece 62 of the lower frame 6.
63 is formed, and the airtight material 10 which rises above the upper surface of the prospective piece 62 in the pocket 63 and closely adheres to the lower frame 8 and the vertical frame 7 or the closed side surface of the latch 2 when the folding door is closed, in the length direction. Laid continuously or partially.

When the sliding door is open, the latch 2 is held by the spring 3 at the lower end position of the sliding door as shown by a two-dot chain line in FIG. When the top of the rod 1 or the sliding piece 4 comes into contact with the rail 51 of the upper frame 5, the rod 1 descends against the restoring force of the spring 3 as shown by a solid line, and the latch Descends and the rail of lower frame 6
Engage with 61 and maintain that state. In this state, when the rail 51 enters the groove 21, the latch 2 is engaged with the rail 61 in both directions of the open side and the closed side of the sash as described above.

When the shoji is closed, the lower frame 8, the vertical frame 7,
Or the airtight material of the lower frame 6 which contacts the closed side surface of the latch 2
Reference numeral 10 denotes a door stop for reducing the impact caused by the contact between the latch 2 and the lower frame 6 when the shoji is closed, and a lower end of the shoji and the lower frame 6
Has the role of ensuring watertightness between them.

When the folding door is opened from the state in which the folding door is closed, when the upper end of the rod 1 or the sliding piece 4 is separated from the rail 51 of the upper frame 5, the rod 3 is moved by the spring 3 as shown by a chain line.
Rises, and the latch 2 is detached from the rail 61 of the lower frame 6.

According to a third aspect of the present invention, when the rod 1 is lowered and the latch 2 is engaged with the rail 61 of the lower frame 6,
This device locks the above-mentioned empty tightening device by restraining the lifting of the rod 1 or the latch 2 by means of the lock 12.

The restricting member 12 rotates or linearly moves when the rod 1 is descending, thereby engaging or locking the rod 1 or the sliding piece 4 or the latch 2 downward, and Restrain the rise.

FIGS. 1, 2 and 4 to 6 show an example in which a restraining member 12 rotatably supported by a vertical frame 7 is engaged with a receiving member 16 fixed to the rod 1 by rotating. Show.
The restraining member 12 includes a shaft 13 that is supported by the vertical frame 7, an engaging piece 14 that protrudes from the shaft 13, engages with the receiving member 16 when the restraining member 12 rotates, and restrains the rod 1 from rising. It comprises a knob 15 integrated with the locking operation side of the shaft 13.

FIG. 4A shows a cross section at the position of the restraining member 12.
(b) is a longitudinal section orthogonal to the axis 13 of the restraining member 12, and (c) is
The side of (b) is shown. FIG. 4 shows a state in which the shoji is opened and the rod 1 is raised with respect to the vertical stile 7 as shown by a two-dot chain line in FIG. Together with the shoji,
The state shown in (a) and (b) is reached. In the drawing, since the receiving portion 17 with which the engaging piece 14 is engaged is formed in the receiving member 16, the receiving portion 17 of the receiving member 16 when the rod 1 is raised and the engaging
Due to the relationship of the protruding length of 14, the opposite side of the engaging piece 14 of the shaft 13 is cut out by the amount that the receiving portion 17 enters.

From the state where the receiving member 16 is lowered, FIG.
The restraining member 12 rotates as shown in FIGS.
Is engaged with the receiving portion 17 of the receiving member 16 so that the receiving member
16 is restrained from rising, and the rod 1 is fixed. In FIGS. 4 to 6, a part of the rod 1 is notched because the engaging piece 14 rotates on the rod 1 side with respect to the shaft 13, but this is not necessary when rotating on the opposite side.

FIGS. 7 and 8 show an example in which the restraining member 12 engages with the receiving member 16 fixed to the rod 1 by moving up and down with respect to the shoji. The shaft 13 of the restraining member 12 is supported on the vertical frame 7 so as to be able to move up and down. On the lower surface side of the shaft 13, when the restraining member 12 descends and hits the receiving member 16, the restraining member 12 of the vertical frame 7
By engaging the protrusion 71 formed on the side surface upward,
An engagement piece 14 for restraining the rod 1 from rising is provided. Protrusion
The reference numeral 71 is formed by joining a component to the surface on the side of the restraint member 12, or by projecting from the opposite side.

In the drawing, in addition to the engaging piece 14, an engaging piece 18 that directly abuts on the receiving member 16 when the restraining member 12 is lowered and stops the lowering of the restraining member 12 is provided. If the position of the projection 71 and the position of the receiving member 16 are set such that the engaging piece 14 engages with the projection 71 of the vertical frame 7 when the abutment against the receiving member 16, the engaging piece 18 is not necessary.

FIG. 7A shows a cross section at the position of the restraining member 12.
(b) shows that the receiving member 16 descends together with the rod 1 and the restraining member 12
5 shows a vertical cross section orthogonal to the axis 13 of the restraining member 12 when is in a released state. In (b), the restraining member 12 is stopped with the tip of the engagement piece 14 positioned above the projection 71.

The restraining member 12 descends from the state shown in FIG.
As shown in the figure, the tip of the engagement piece 14
The lower part of the shaft 13 or the engagement piece
When the lower surface of 17 abuts against the receiving member 16, the receiving member
16 The upward movement is restrained, and the rod 1 is fixed.

In addition to the above example, the restraining member 12 is formed by forming an inclined surface on a portion of the shaft 13 that contacts the receiving member 16 or the like.
Or the horizontal movement in the direction in which the vertical frame 7 is found, the movement of the receiving member 16 can also be restricted and the rod 1 can be fixed.

[0034]

According to the first aspect of the present invention, the latch is housed at the lower end position of the folding door so that it can freely enter and exit from the lower frame side, and when the folding door is closed, it is engaged with the rail of the lower frame, and the folding door is opened from the closed state. To prevent collision with the floor on the open side of the folding door by placing it at the lower end position of the folding door, prevent the floor and the latch from being damaged, Engagement of the frame can be ensured.

In addition, since the rail of the lower frame forms a groove on the lower surface side of the latch that can engage with the open side and the closed side of the shoji,
In addition to preventing the folding door from swinging further toward the closed side in the closed state, the stability of the lower end side of the folding door is ensured, and the occurrence of fluttering and the accompanying decrease in water tightness between the shoji and the lower frame can be prevented. .

According to the third aspect of the present invention, since the rod is lowered and the latch or latch is restrained from rising when the latch is engaged with the rail of the lower frame, the folding door can be easily locked and the operability is good.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a relationship between an empty fastening device and an upper frame and a lower frame in a closed state and an open state of a shoji.

FIG. 2 is a side view of the empty fastening device shown in FIG. 1;

FIG. 3 is an elevation view showing a folding door.

4A is a cross-sectional view showing the arrangement of the locking device in a vertical frame, FIG. 4B is a vertical cross-sectional view perpendicular to the axis when the rod is raised, and FIG. It is a side view of b).

5A is a longitudinal sectional view perpendicular to the axis when the rod is lowered, and FIG. 5B is a side view of FIG.

6A is a longitudinal sectional view orthogonal to the axis when the axis rotates, and FIG. 6B is a side view of FIG.

7 (a) is a cross-sectional view showing the arrangement of the locking device other than FIG. 4 in a vertical frame, FIG. 7 (b) is a vertical cross-section orthogonal to the axis when the axis is raised, and FIG. ) Is a vertical section perpendicular to the axis when the axis is lowered.

FIG. 8 is a perspective view showing the locking device shown in FIG. 7;

[Explanation of symbols]

1 ... Rod, 2 ... Latch, 21 ... Groove, 3 ... Spring,
4 ... sliding piece, 5 ... upper frame, 51 ... rail, 6 ... lower frame, 61 ... rail, 62 ... prospect piece, 63 ... pocket,
7 ... vertical frame, 71 ... projection, 8 ... lower frame, 9 ... fixed piece,
10 ... airtight material, 11 grating, 12 ... restraint member, 13 ...
... shaft, 14 ... engaging piece, 15 ... knob, 16 ... receiving member,
17 ... receiving part, 18 ... engaging piece.

Claims (3)

[Claims] 1. A rod which is arranged in a vertical frame of any of the folding doors so as to be able to move up and down, and a latch which is housed at a lower end position of the sliding door so as to be able to move in and out of a lower frame and which moves up and down in conjunction with the rod. And urge the rod or latch upward,
The latch consists of a spring that holds the latch in the lower end position of the shoji.The latch lowers when the upper end of the rod contacts the rail of the upper frame, engages with the rail of the lower frame, and the upper end of the rod moves upward. This is a blanking device that rises and separates from the rail of the lower frame when it is separated from the rail of the frame.On the lower side of the latch, a groove is formed in the rail of the lower frame that can engage with the open side and the closed side of the shoji. Emptying device for folding doors. 2. The level of the upper end of the rail with which the latch of the folding door empty fastening device according to claim 1 is engaged corresponds to the level of the floor of the room on the side where the shoji is opened and the level of the floor of the room on the opposite side. Empty folding device for folding doors. 3. An apparatus for locking an empty closing device for a folding door according to claim 1, wherein the rod is lowered when the latch is engaged with a rail of a lower frame. Locking device that restrains the latch from rising.