JP3451199B2 - Sliding door security structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crime prevention structure for a sliding door that prevents a locked sliding door from being opened and opened.

[0002]

2. Description of the Related Art For example, a sliding door is constructed by engaging a dead bolt protruding from a lower frame of a sliding door with a lower frame or a lock rail of a guide rail laid on a floor surface in an open direction. When locking the doors, the sliding doors are locked one by one, so if there is a space above the sliding doors, the dead bolts are lifted to disengage the dead bolts from the lock trays and the sliding doors can be opened. Since it will be in such a state, it will allow intrusion from the outside.

It is possible to prevent the dead bolt from coming out of the lock receiving to some extent by fixing a plate for preventing the dead bolt from falling off as in Japanese Patent No. 2649488, but the plate is a door car. Since it is necessary to have a length that spans the traveling section of, since it is easily deformed, if you try to forcibly lift the sliding door using the gap between the lower end of the sliding door and the lower frame,
The plate can be deformed and the dead bolt can be disengaged from the lock.

Although the plate itself can be prevented from being deformed by orienting the plate vertically as in Japanese Patent Laid-Open No. 57-61167, the dead bolt is not locked by the lock when the upper frame is deformed. It is not possible to prevent the sliding door from opening because it can be detached and in that state the sliding door can slide along the plate.

From the above background, the present invention proposes a structure for preventing the sliding door from opening when the lock is released.

[0006]

According to the present invention, at least one of the upper frame of the sash frame and the upper end of the sliding door is fixed with a biting member in which concave portions and convex portions are alternately formed on the other side,
By forming a convex part that can fit in the concave part of the biting material at the position corresponding to the other biting material, the concave part of the biting material and the other convex part are meshed when the sliding door is lifted. Prevents the sliding door from opening when the lock is released.

In the case where the sliding door is locked by the dead bolt and the lock receiving, the sliding door cannot be opened unless the dead bolt is detached from the lock receiving and the means for preventing the sliding door from moving to the open side when the sliding door is lifted. Although it can be moved to the open side, in the present invention, when the sliding door is lifted, the catching member and the convex portion do not mesh with each other and do not slip. You cannot move to.

Since the degree of engagement between the engaging member and the convex portion becomes stronger as the sliding door is raised higher, the sliding door cannot be opened as long as the dead bolt is disengaged from the lock receiving. If the sliding door is lowered, the dead bolt will engage with the lock tray, so opening the sliding door will not work.

The sliding door is forcibly lifted in both the type of running while being supported by the upper frame and the type of running along the rails of the lower frame, and further from the state in which the concave portion and the convex portion of the biting member are engaged with each other. Although it deforms the upper frame when trying to rise, the bite material only needs to be partially arranged within the section in which the sliding door travels, so it is difficult to deform even if it receives a force. The deformation of the bite material does not occur, and once the bite material and the convex portion are engaged with each other, the two do not slip from the state.

In order to release the engagement of the dead bolt with the lock receiving, it is necessary to lift the installation side of the dead bolt, and at that time, the upper end of either the door tip side or the door butt side of the sliding door is raised. Although it will approach the frame, since the biting material is fixed on the side where the sliding door and the upper frame approach, when the sliding door is lifted, the biting material and the convex portion contact each other, and the sliding door and the upper frame are Since a direct collision is avoided, damage to the upper end of the sliding door and the upper frame is prevented.

When the sliding door is of a hanging type, the door roller floats from the rail of the upper frame when the sliding door is lifted,
It does not damage the door roller.

If the bite material is fixed to the upper frame of the sash frame and the projection of the vertical frame of the sliding door is used as the convex portion that fits into the concave portion of the bite material, the sliding door of the sliding door can be used. Since it is not necessary to form a special convex portion on the upper end or to project a component to be a convex portion, the number of sliding door sash components is reduced and the manufacturing cost is reduced.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention relates to a sliding door sash as shown in FIG. 3, in which a catching member 7 fixed to at least one of the upper frame 5 of the sash frame and the upper end of the sliding door 1.
The convex portion 8 formed on the other side prevents the sliding door 1 from being opened when the sliding door 1 is lifted and unlocked. The upper frame 5 includes a blind eye. Although FIG. 1 shows a case where the sliding door 1 is of a hanging type, the sliding door 1 may travel along a rail of a lower frame. Further, in the drawing, since the sliding door 1 is a frame-assembled door, by engaging the dead bolt 9 protruding downward from the lower frame 2 with the lock receiver 10 fixed to the guide rail 6 laid on the floor surface. The case of locking is shown, but sliding door 1
May be a flush door, etc., and may be locked by a sickle lock or other means.

As shown in FIGS. 1 and 6, the biting member 7 has a shape in which concave portions 71 and convex portions 72 are alternately formed on the opposite side of the upper frame 5 and the sliding door 1 to the side where they are fixed. Then, the upper frame 5 and the upper frame 4 of the sliding door 1 or the upper ends of the vertical frame 3 and the like are fixed to one or both of them. In the drawing, the biting member 7 is replaced by the upper frame 5.
It shows the case where it is fixed to.

A convex portion 8 which can be fitted in the concave portion 71 of the biting member 7.
Is formed on the opposite side of the upper frame 5 and the sliding door 1 to the side where the bite material 7 is fixed, facing the bite material 7 side. In the drawings, as shown in FIGS. 1 and 5, the upper ends of the prospective pieces 31, 31 of the vertical frame 3 are used as the convex portions 8 and the sliding door 1 is formed with the convex portions 8.

In the drawing, the biting member 7 is formed by bending one plate and making a notch at the lower end of the piece facing in the vertical direction, but the shape of the biting member 7 is a convex portion that fits into it. The shape is not limited to the illustrated shape, and may be formed in a block shape. Further, the shapes of the concave portions 71 and the convex portions 72 of the bite material 7 are not limited to the saw-tooth shape as illustrated.

When the biting member 7 is fixed to the upper frame 5 as shown in the figure, in addition to utilizing the prospective pieces 31, 31 of the vertical frame 3 as the projections 8, the component forming the projections 8 is used as the sliding door 1. The upper frame 4 and the vertical frame 3 may be fixed to the upper ends of the upper frame 4 and the vertical frame 3, or the biting member 7 may be turned upside down and fixed to the upper ends of the upper frame 4 and the vertical frame 3 as described above. When the bite material 7 is fixed to the upper end of the sliding door 1, the convex portion 8 is formed on the upper frame 5, or a component which becomes the convex portion 8 is fixed.

When the bite material 7 is fixed to the upper frame 5, the bite material 7 is provided in a concave portion 71 and a convex portion 72 in any part of the upper frame 5 or in a member housed in the upper frame 5. Fixed facing down. In the drawing, screws are attached to the engine case 11 that houses the engine that opens and closes the sliding door 1 as an automatic door.
It is fixed by 12.

When fixing the biting member 7 to the sliding door 1,
The biting member 7 is fixed to the upper ends of the upper frame 4 and the vertical frame 3 and to the upper end of the sliding door 1 in the case of a flush door, with a concave portion 71 and a convex portion 72 facing upward.

FIG. 4 shows the relationship between the upper end of the butt frame, which is the vertical frame 3 of the draw-type sliding door 1, and the engaging member 7. When the sliding door 1 is lifted as shown here, the upper ends of the prospective pieces 31, 31 of the vertical frame 3 enter the recess 71 of the biting member 7 and engage in the opening / closing direction. You cannot move in the direction of opening and closing.

As shown in FIGS. 1 and 4, the biting member 7 may be fixed to the upper frame 5 so that the parallel prospective pieces 31, 31 of the vertical frame 3 fit into the recesses 71, 71. If the length of the biting member 7 is made larger than the distance between the prospective pieces 31, 31 of the vertical frame 3, high precision is not required for fixing the biting member 7 to the upper frame 5.

FIG. 5 shows the biting member 7 when the distance between the upper end of the vertical frame 31 serving as the convex portion 8 and the engine case 11 is different.
An example of attachment of the to the engine case 11 is shown. (a) is a sliding door 1
Is installed and adjusted, and the sliding door 1 is raised from the standard with respect to the upper frame 5, (b) is the standard state, and (c) is the state lowered from the standard. 6- (a) to (c), the left sliding door 1 shows the standard state.

In FIG. 5A, the vertical frame 31 and the engine case 11 are shown.
Since the distance between and is small, the bite material 7 is directly fixed to the engine case 11 with the screw 12, and the distance is larger than in the case of (a) with the engine case 12 in (b) and (c). The bite material 7 is fixed with the liner 13 interposed therebetween.

FIG. 6 is an elevation view of FIG. 5, where (a), (b),
(c) corresponds to (a), (b), and (c) in FIG. Figure 6
The middle and right sliding door 1 shows the sliding door 1 of FIG. The distance between the upper end of the vertical frame 31 and the lower end of the convex portion 72 of the engaging member 7 is determined by the amount of engagement of the dead bolt 9 on the lock tray 10, and for example, when the amount of engagement is 6 mm, the sliding door 1 is lifted. When the upper frame 5 is deformed when the vertical frame 31 and the engaging member 7 are engaged with each other so that the vertical frame 31 and the engaging member 7 mesh with each other before the dead bolt 9 is completely disengaged from the lock receiving 10. The distance is adjusted within the range of 1-3 mm.

[0025]

EFFECTS OF THE INVENTION At least one of the upper frame of the sash frame and the upper end of the sliding door is fixed with a catching member having recesses and protrusions alternately formed on the other side, and the other catching member is supported. By forming a convex part that can fit in the concave part of the biting material at the position, the concave part and the convex part of the biting material are engaged when the sliding door is lifted, so that when the sliding door is unlocked. The sliding door can be prevented from sliding and opening.

Particularly, the degree of engagement between the engaging member and the convex portion becomes stronger as the sliding door is lifted higher. Therefore, when the sliding door is locked by the dead bolt and the lock receiving, the dead bolt is disengaged from the lock receiving. As long as the door is open, it will be impossible to open the sliding door.

The bite material is a section in which the sliding door runs,
It only needs to be partly arranged, and it does not have to be deformed even if it receives a force.Therefore, even if the sliding door is forcibly lifted and the upper frame is deformed, the biting member will not be deformed. As a result, there is no slippage between the biting material and the convex portion when they are in mesh with each other.

Since the biting material is fixed to the side where the sliding door and the upper frame approach each other when the sliding door is lifted, when the sliding door is lifted, the biting material and the convex portion contact each other, and the sliding door and the upper frame are separated from each other. Since a direct collision is avoided, damage to the upper end of the sliding door and the upper frame is prevented.

When the sliding door is of a hanging type, the door roller floats from the rail of the upper frame when the sliding door is lifted,
It does not damage the door roller.

If the bite material is fixed to the upper frame of the sash frame as described in claim 2 and the prospective piece of the vertical frame of the sliding door is used as the convex portion that fits into the concave portion of the bite material, Since it is not necessary to form or project a convex portion on the upper end, the number of parts of the sliding door sash is reduced and the manufacturing cost is reduced.

[Brief description of drawings]

FIG. 1 is an elevational view showing a state where a sliding door is lifted.

FIG. 2 is a vertical sectional view of FIG.

FIG. 3 is an elevation view showing an entire sliding door and a sash frame.

FIG. 4 is a plan view showing a relationship between a vertical frame of a sliding door and a biting member.

5 (a), (b), and (c) are vertical cross-sectional views showing the relationship between a biting member and a vertical frame.

6 (a), (b), and (c) are elevation views showing the relationship between the engaging member and the sliding door.

[Explanation of symbols]

1 ... Sliding door, 2 ... Lower frame, 3 ... Vertical frame, 31 ... Expected piece, 4 ... Upper frame, 5 ... Upper frame, 6 ... Guide rail, 7
…… Breaking material, 71 …… Concave, 72 …… Convex, 8 …… Convex, 9 …… Dead bolt, 10 …… Lock holder, 11 …… Engine case, 12 …… Screw, 13 …… Liner .

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E06B 3/46 E05F 7/04 E05D 13/00

Claims (2)

(57) [Claims] 1. A sliding door in a locked state is lifted,
It has a structure that prevents the sliding door from opening when unlocked, and it is a bite in which at least one of the upper frame of the sash frame and the upper end of the sliding door has concave and convex parts alternately formed on the other side. A crime prevention structure for a sliding door, in which a member is fixed and a convex portion that can be fitted into a concave portion of the biting member is formed at a position corresponding to the other biting member. 2. The crime prevention structure for a sliding door according to claim 1, wherein the biting material is fixed to the upper frame of the sash frame, and the convex portion fitted into the concave portion of the biting material is a prospective piece of the vertical frame of the sliding door.