WO2013151515A1

WO2013151515A1 - Safety latch

Info

Publication number: WO2013151515A1
Application number: PCT/TH2013/000010
Authority: WO
Inventors: Rangsan SAENGSOOK; Piyapon KLINSRISOOK
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-04-02
Filing date: 2013-03-26
Publication date: 2013-10-10
Anticipated expiration: 2014-10-02

Description

SAFETY LATCH

1. FEATURE AND OBJECTIVE OF INVENTION

This innovation is mainly concerning the Safety Latch which its feature is a metal plate with hole at the top, the other plate is a semi-oval along the rectangle and joined face to face by two plates with two inner part of small windows to support movable direction controlled of the metal plates and use them as to open and close the hole of the top-hole metal plates.

The objective of this new innovation of Safety Latch is to safe both life and property particular from inside and outside coop up. It also contains more solidity and longer lasting than other equipments. It is unnecessary or misspend to install any other opening and closing protectable equipments when chose this innovation.

2. TECHNICAL FIELD Safety Latch Engineering

3. BACKGROUND ART OR RELATING SCIENCE

FIGURE 8. Shows the previous available Safety Latch which composes of a left metal plate 21, round hole 22 at the top and 3 small round holes 23 on different positions on the rectangle plate.

The right metal plate 24 with circle hole 25 at the top 26 and three small holes on the rectangle metal plate.

Both left and right 24 metal plates install at the door's edge and at the doorframe at the same height to meet joining face to face of the two metal plates and twines the key when requires it to work.

Safety defect of the available old design of Safety Latch is the shutting in from the outside. 4. DISCLOSURE OF INVENTION

FIGURE 1 shows the innovation of Safety Latch which consists of the metal plate with a semicircle hole beside 2, semi-oval hole on the rectangle metal plate 5, metal plate joins face to face on the left 8, metal plate joins face to face on the right 10, metal plate interlines on the left between the joining face to face of metal plates, metal plate interlines on the right between the joining face to face of metal plates 16, small rectangle metal plate 7 is used to push and pull.

Metal plate 2 will be molded (see FIGURE 2) with a semicircle hole 3 beside that general keys can be looped by metal plate 2 and the other side will be the face to face joiner of the door's edge or the doorframe.

Metal plate 5 will be molded (see FIGURE 3) with a semi-oval hole on the rectangle metal plate 6 and the diameter is equal to the semicircle hole of the metal plate 2, edge of semicircle hole width of metal 5 is equal to the semicircle hole of metal plate 2. Square at the end of metal plate 5 is attached by the small rectangle metal plate. The left joining face to face metal plate 8 will be molded (see FIGURE 4) to be a rectangle metal plate with four holes 9 on different positions.

The right joining face to face metal plate 10 will be molded (see picture 4) to be a rectangle metal plate with four holes 11 on different positions.

Metal plate with left interlined between the joining face to face metal plates 12 (see FIGURE 5) has one center- hole on the small rectangle metal plate.

Metal plate with right interlined 14 between the joining face to face metal plates 14 (see FIGURE 5) has one center-hole on the small rectangle metal plate.

The semi-oval on the rectangle metal plate 16 will be molded (see FIGURE 5) with a semicircle on the other side of the rectangle. Joins face to face on the left 8 of metal plate is the key assembling method (see

FIGURE 6), interlines the left with the metal plate 12 and joins face to face with the left joining face to face metal plate on the same holes position 8, interlines the right with metal plate 14 and joins face to face with the left joining face to face metal plate 8 on the same holes position. Attaches the long side of semicircle of the rectangle metal plate with the left joining face to face metal plate on the same holes position at the center will make 2 windows, 18 and 19.

Put metal plate 5 on the left joining face to face metal plate 8. Left and right edges of metal plates 5 are exactly on windows 18 and 19 make metal 5 movable. Put the left joining face to face metal plate with the metal 12, 16 and 14 on the same holes position, inserts screw through the doorframe's stuff to hold it.

When joining face to face is completed (see FIGURE 7) attaches the metal plate 2 and make the semicircle hole of metal plate 5 at the same holes position, pulls the small rectangle metal plate 7 to make space at the end of metal plate 5 if require to lock 20.

The feature of the above Safety Latch Innovation is useful to the safety both life and property, long lasting, harsh and protects clashing or destroying. The size of key can be chosen eventual properly.

5. BRIEF DESCRIPTIONS OF DRAWINGS FIGURE 1. Shows the Safety Latch Invention.

FIGURE 2. Shows a semicircle hole beside the metal plate of this Innovation.

FIGURE 3. Shows a semicircle hole on the rectangle metal plate of this invention.

FIGURE4. Shows the face to face joining of left and right metal plates.

FIGURE5. Shows the left and right interlined metal plates and the central metal plate of this invention.

FIGURE 6. Shows procedures of assembled method of this invention.

FIGURE 7. Shows using door's bolt with this invention.

FIGURE 8. Shows the general available previous Safety Latch.

BEST MODE FOR CARRYING OUT THE INVENTION As same as item 4, Disclosure of Invention.

Claims

CLAIM

This Safety Latch comprises semicircle hole beside the metal plate (2), semi-oval hole on the rectangle metal plate (5) with small rectangle metal plate attaches on the end of the square side of metal plate (5), the left joining face to face metal plate (8), the right joining face to face metal plate (10), the left interleaved between the joining metal plates (12), the right interleaved between the joining metal plates (14), the semi-oval on the rectangle metal plate (15), small rectangle metal plate (7), is used to push and pull.

Joins face to face on the left of metal plate as a key assemble by using the left interleaved metal plate (12), the right interleaved metal plate (14) and the semi-oval on the square metal plate, joins them face to face at the same holes position to make windows (19) between metal plate (12) and metal plate (16). Window (18) between metal plate (16) and metal plate (14) is done by attaching the semi-oval hole rectangle metal plate on the window -(f8)-and ( 9) to^"make^~it^{^} metal plate (10) with the metal plate (12), metal plate (16), metal (14) at the same holes position and inserts screw through the stuff of the door or stuff of the doorframe to hold it.

When joining face to face is completed, attaches the metal plate (2) exactly at the same semicircle hole position of metal plate (5).

If requires to lock (20) pulls the small rectangle metal plate to make window at the end of metal plate (5).