JPH034700Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a guard fitting for a door that is used to identify outsiders and prevent unnecessary people from entering. This structure provides safety, crime prevention, and indoor ventilation.

Hereinafter, the present invention will be described in detail based on the illustrated embodiment. As shown in FIGS. A locking metal fitting 1 is fixed with a screw or the like, and a locking/sliding hole 5 which is bent into a substantially U-shape from the front and formed into a long piece, has a closed end at the tip and an enlarged hole 5a at the base end. It consists of an arm 4 that is long in the length direction and a mounting bracket 7 that is fixed to the door 6 with screws or the like.

The above-mentioned stopper 1 is connected from the pedestal 1a to the above-mentioned locking rod 2.
The locking rod 2 is fixed to the vertical frame 3 so as to project in parallel to the width direction of the door 6.

On the other hand, the mounting bracket 7 is integrally formed with two brackets 7b, 7b protruding in parallel from the pedestal 7a in correspondence with the distance between the proximal ends of the arm 4, and the mounting bracket 7 is integrally formed with the pedestal 7a to attach the door 6. It is fixed at a position corresponding to the above-mentioned stopper 1 on the back surface of the open end side.

Since the arm 4 is bent into a substantially U-shape as described above, its both ends, that is, the base end 4
a, 4a to both brackets 7b of the mounting bracket 7,
7b by a shaft 8, a retaining ring 9 is fitted onto the shaft 8, and the arm 4 is rotatably attached to the rear surface of the door 6, as shown by the two-dot chain line in FIG. The arm 4 is pivoted so as to be rotatable in parallel and at right angles as shown by the solid line in the same figure, and when the door is in the closed state as shown in FIG. The door 6 is opened at the position shown by the solid line in FIG. 3, where the arm 4 is rotated to be approximately perpendicular to the door 6 so that it can be freely rotated and engaged with and disengaged from the stopper 1. Therefore, the locking/sliding hole 5 and the stopper 1 engage, and the door 6 can be opened by a predetermined angle within the effective length of the locking/sliding hole 5 as shown in FIG. It goes into a cautious state and is locked and held so that it will not open any further.

In other words, in addition to the mounting positions of the stopper 1 and the arm 4, the diameter d of the locking rod 2 of the stopper 1 and the width l of the locking/guide hole 5 of the arm 4 are such that they can be slid freely. Furthermore, the diameter d' of the locking head 2a is larger than the width l of the locking/guide hole 5, and the width of the enlarged hole 5a at the base end thereof.
It is formed considerably smaller than l'.

Furthermore, in the present invention, the distal end of the arm 4 is formed into a bent portion 4b having a plane substantially half-crank shape as shown in the figure, and an outward step portion 4b' is provided, so that when the door is opened as described above, the arm 4 is By rotating and moving to the left in the state shown in FIG. 4, the locking head 2a can be locked to the outward step 4b' as shown in FIG. 5, and the door can be closed. It is constructed so that a ventilation effect can be obtained by holding the door 6 in the cautious state shown in FIG. 5.

As explained above, according to the door guard fitting according to the present invention, the stopper 1 has the locking head 2a at the end of the locking rod 2 and is fixed to the vertical frame 3; The arm 4 has a locking/sliding hole 5 long in its length direction, and a widening hole 5a is formed at the base end of the locking/sliding hole 5, so that the door can be closed. In the condition, the above stopper 1
The arm 4 is rotatably attached to the door 6 via a mounting bracket 7 so that it can be engaged with and detached from the door 6, and a bent portion is provided at the tip of the arm 4 so that it can be engaged with the locking head 2a in a precautionary state. 4b, the door 6 can be opened and closed in the normal state by rotating the arm 4 toward the back side of the door 6.
Furthermore, when the arm 4 is rotated so as to be approximately perpendicular to the door 6, it is engaged with the stopper 1, so that the door 6 can be kept open in this state, and furthermore, in this state, the arm 4 can be rotated to close the door. If the door 6 is slightly rotated toward the side 6, the bent portion 4b and the locking head 2a are locked with each other, thereby preventing the door 6 from opening or closing. 6 is slightly opened in a cautious state, which has the effect of obtaining a ventilation effect in the room while maintaining a defensive effect.

Furthermore, switching between the above-mentioned precautionary state, the same precautionary state, and the ventilation state can be easily performed by a simple operation by slightly moving the tip of the arm 4, and the structure is simple. Because it is available, it can be manufactured at low cost.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the door guard fitting according to the present invention in use, Fig. 2 is a front view of the same fitting in use, and Figs. 3, 4, and 5 show the use of the same fitting. Fig. 3 is a plan view of the closed door state, Fig. 4 is a plan view of the guard state, and Fig. 5 is a plan view of both the guard and ventilated states. DESCRIPTION OF SYMBOLS 1... Stopping metal fitting, 2... Locking rod, 2a... Locking head, 4... Arm, 4b... Bent part, 5... Locking and sliding hole, 5a... Widening hole, 6... door.

Claims (1)

[Scope of utility model registration request] The vertical frame 3 has a locking head 2a at the end of the locking rod 2.
It consists of a stopper 1 that is fixed to the stopper, and an arm 4 that can be engaged with, detached from, and slidably engaged with the stopper. An enlarged hole 5a is provided at the base end, and the door 6 is rotatably pivoted to the door 6 via a mounting bracket 7 so that it can be engaged with and detached from the stopper when the door is closed, and is engaged with the locking head when the door is in a cautious state. A door guard fitting characterized in that a bent part 4b is provided at the tip of the arm to make it possible.