JPH0119739Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a door locking device that determines the opening limit of a door that opens and closes an opening.

Figure 1 is a plan view showing a conventional door locking device;
The figure is a perspective view showing the open state, and in the figure, 1 is the main body of the apparatus, 2 is an opening opened at the front of the main body 1, 3 is fixed to the front end of the upper surface of the main body 1, The hinge portion 4 protrudes forward and is connected to the hinge portion 3 so as to open and close the opening 2.
A door is pivotally connected by a shaft 5, a locking metal fitting 6 is fixed to the upper end of the door 4 and protrudes upward, and 7 is fixed to the lower side of the hinge part 3 and extends downward. It is a stopper consisting of a protruding metal fitting, and the door 4
It is arranged so as to be in contact with the locking metal fitting 6 at the maximum opening position.

In the door locking device configured as described above, when the door 4 rotates around the shaft 5 of the hinge section 3 to the maximum opening position, the locking fitting 6 of the door 4 comes into contact with the stopper 7 of the hinge section 3. Therefore, the door 4 cannot rotate at this position and is locked.

However, in the conventional door locking device as described above, the contact area between the locking metal fitting 6 and the stopper 7 is extremely small, so this part is subject to severe wear, and sometimes the door 4 opens too much and the side end 1a of the device body 1 is damaged. door 4
The paint came into contact with the paint and peeled off, causing an aesthetic problem. In addition, if the engagement part is set at one location on the top or bottom of the door 4, either one will be free, causing distortion in the door 4, and if it is set at both the top and bottom of the door 4, adjustment will be troublesome. There were drawbacks such as:

The present invention was made to eliminate the drawbacks of the conventional ones as described above, and includes a stopper that protrudes from the side end of the opening toward the hinge, and a stopper that extends from the side end of the door to face the stopper. Provided is a door locking device that reduces wear due to contact of the engaging portion and increases the strength of the engaging portion by providing an engaging portion that protrudes and engages with the stopper at the maximum opening position of the door. It is intended to.

FIG. 3 is a horizontal sectional view showing a door locking device according to an embodiment of the present invention, and FIG. 4 is a perspective view showing the door locking device in an open state. Indicates the same or equivalent part. Reference numeral 8 denotes a stopper, which protrudes planarly from the side end of the opening 2 over its entire length toward the hinge portion 3, is bent into an L-shape, and the bent portion is folded back from the tip. The folded portion 8a has a key-shaped cross section. Reference numeral 9 denotes an engaging portion having an angle structure, which protrudes planarly over its entire length from the side end of the door 4 on the side of the hinge portion 3 so as to face the stopper 8, and is located at the maximum opening position of the door 4. It is bent to have an L-shaped cross section and is formed integrally with the door 4 so as to engage with the stopper 8.

In the door locking device configured as described above, when the door 4 rotates around the shaft 5 of the hinge part 3 to the maximum opening position, the folded part 8a of the stopper 8
The tip of the engaging portion 9 engages with the door 4, and the door 4 is locked at this position.

In the door locking device as described above, the contact part between the engaging part of the stopper 8 and the engaging part 9 is a long line or surface, so it is less likely to wear out. The strength of 9 can be increased. Furthermore, when viewed in the direction of the arrow from the eye position indicated by 10 in Fig. 3, the interior of the device, which was previously visible through the gap between the device body 1 and the door 4 because the door 4 rotates, becomes invisible. be able to.

In the above embodiment, the cross-sectional shape of the stopper 8 is L-shaped, but other shapes may be used as long as the stopper 8 is designed to protrude from the side end of the opening 2 and engage with the engaging portion 9 provided on the door 4. The engaging portion 9 may also have a shape other than the L-shaped cross section.
Furthermore, the door locking device of the present invention can be applied to doors that open and close any openings.

As described above, according to the present invention, the folded part of the stopper protrudes from the side end of the opening toward the hinge part, and the folded part of the stopper protrudes over the entire length from the side end of the door so as to face the stopper. , and an engaging part that engages with the stopper at the maximum opening position of the door, which reduces wear on the locking part, increases the strength of the locking part, and is aesthetically pleasing. There is an effect.

[Brief explanation of the drawing]

Figure 1 is a plan view showing a conventional door locking device;
The figure is a perspective view showing the open state, and FIG. 3 is a horizontal sectional view showing a door locking device according to an embodiment of the present invention.
FIG. 4 is a perspective view showing the open state. In each figure, the same reference numerals indicate the same or corresponding parts, and in the figures, 1 is the main body of the device, 2 is the opening, and 3
4 is a hinge portion, 4 is a door, 6 is a locking fitting, 7 and 8 are stoppers, and 9 is an engaging portion.

Claims (1)

[Scope of utility model registration request] an opening, a door pivotally connected via a hinge to open and close the opening, a stopper projecting from a side end of the opening toward the hinge, and a door facing the stopper. An engaging part is provided that protrudes from the side edge of the door and engages with the stopper at the maximum opening position of the door, and the stopper and the engaging part are formed in a planar shape over the entire length of the opening and the side edge of the door, respectively. The protruding stopper is bent to have an L-shaped cross section and has a folded part that is folded back from its tip, and the engaging part has an L-shaped cross section so as to be in contact with the folded part at the maximum opening position of the door. A door locking device characterized in that: