JPH0321665Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] The present invention relates to a mailbox opening provided in an entrance door.

[Conventional technology]

Conventionally, a spring-type opening/closing lid is attached to the outside of a post opening provided in an entrance door, and a wrap-shaped blindfold is provided inside the post opening so that the inside cannot be seen through when the outside opening/closing lid is opened.

[Problem that the invention attempts to solve]

However, the above-mentioned round-shaped blindfold has the disadvantage that if the leading end of the mail to be loaded collides with the front end, the rear end protrudes outside, making it susceptible to theft or causing the mail to be bent. Since the door has a large downward opening, it protrudes more than 60 mm from the inner surface of the door, obstructing the opening and closing of the door and impairing the airtightness of the door. In addition, deliveries may fall and scatter on the floor of the entrance, get dirty with shoes, or be lost.If a delivery box is installed inside the mailbox door to prevent this, it will become a hindrance to opening and closing the door. There was a problem.

This invention was devised to improve the above-mentioned problems with the post opening of the conventional entrance door, and its purpose is not only to have the same function as the conventional post opening, but also to provide a cover for the inside of the door. To provide a mailbox opening for an entrance door which does not interfere with opening/closing and going in and out of the door due to a small amount of protrusion, and prevents delivered items from falling onto the entrance floor.

[Means for solving problems]

In order to achieve the above object, the present invention provides a post opening provided in an entrance door, in which the post opening is formed by being engaged with the opening of the entrance door by fastening an inner post frame and an outer post frame, The upper side of the post frame is hinged with inner and outer lids that open inward to the entrance and are biased in the closing direction by a spring. It is set to be smaller than the maximum opening of.

[Effect]

Therefore, at the post opening of the entrance door according to the present invention,
Not only is it impossible to see through the entrance from the outside, but both the outside and inside lids are always closed by spring force, so the door is airtight, and the inside lid is thick. Since it opens to accommodate objects, there is no need for a large opening to protrude from the inside of the door, and the spring force of the opening/closing lid holds delivered items in the inner mailbox opening, preventing them from falling and scattering. .

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal sectional view of the embodiment, and FIG. 2 is a perspective view of the embodiment as seen from the inner surface of the door.

The door 1 is provided with a horizontally long opening 3 surrounded on all four sides by a frame material 2, and an outer post frame 4 and an inner post frame 5 made of steel plates, which are formed separately in the opening 3, serve as the frame members of the door 1. The bent portions 4a and 5a formed on opposite left and right sides of the door 2 are fastened to each other with screws 6 in a manner corresponding to the thickness of the door 1.

A funnel-shaped outer post opening 7 is formed in the outer post frame 4, and an outer opening/closing lid 8 is attached to the outer post opening 7 so as to open inward with a hinge 9 at the top, and a spring 10 keeps the outer post opening 7 open at all times. is biased to close.

The inner post frame 5, which is formed in a semicircular shape with a thickness of 20 to 30 mm, has an inner post opening 1 whose lower edge is sloped downward.
1 is formed, and an inner opening/closing lid 12 is attached to the inner post opening 11 so as to open toward the indoor side with a hinge 13 attached to the upper bent part, and is attached with a spring 14 so as to always close the inner post opening 11. Forced. When the inner opening/closing lid 12 is opened, the horizontal outward bent portion 5b of the inner post frame 5 above the inner post opening 11 comes into contact with the upper part of the inner opening/closing lid 12, and the maximum opening degree of the inner opening/closing lid 12 is increased. It is set to be approximately 60 mm from the inner surface of the door 1, and even if the outer and inner opening/closing lids 8, 12 are opened simultaneously from the outside, the line of sight is blocked by the inner opening/closing lid 12, making it impossible to see through the inside of the entrance. It is set up like this.

In the post opening configured as described above, when the outer opening/closing lid 8 of the outer post opening 7 is pushed with a delivered item, the outer opening/closing lid 8 opens inward and the delivered item is inserted into the door from the outside post opening 7, and at the same time The inner opening/closing lid 12 of No. 11 is also opened, and the delivered item is held in the inner post opening 5 by the spring force of the inner opening/closing lid 12, as shown in FIG.

[Effect of idea]

As detailed above, according to the present invention, in the post opening provided in the entrance door, the post opening is formed by being engaged with the opening of the entrance door by fastening the inner post frame and the outer post frame, The inner and outer lids, which open inward to the entrance and are biased in the closing direction by a spring, are hinged to the upper sides of both post frames. Since it is set smaller than the maximum opening of the lid, the inner opening/closing lid is hinged to the inner post frame and can be opened and closed freely.
In addition to eliminating the drawbacks of a round-shaped blindfold, there is no risk of the inside of the entrance being seen through even if the outer and inner opening/closing lids are opened from the outside at the same time. Since both the inner opening/closing lids are always closed by spring force, these double barriers ensure good airtightness of the door, and the inner opening/closing lid can also accommodate thick deliveries. Since it opens, not only does it eliminate the drawback that the rear end protrudes outside and is susceptible to damage or theft, but it also eliminates the need for a large opening to protrude from the inner surface of the door, and the inner post frame is thinner, making it easier for the door to be opened. It does not get in the way of opening/closing and getting in and out, and also has various effects such as the delivery items put in from the mailbox opening are held by the inner mailbox opening by the spring force of the inner opening/closing lid and are prevented from falling and scattering on the floor. It is.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a longitudinal sectional view of the embodiment, and FIG. 2 is a perspective view of the same embodiment as seen from the inner surface of the door. 1... Entrance door, 2... Frame material, 3... Opening, 4
...Outer post frame, 5...Inner post frame, 4a,
5a... Left and right bent parts, 5b... Upper bent parts, 6... Screws, 7... Outer post opening, 8... Outer opening/closing lid, 9, 13... Hinge, 10, 14... Spring , 11... Inner post opening, 12... Opening side opening/closing lid.

Claims (1)

[Scope of utility model registration request] In the post opening provided in the entrance door, the post opening is formed by fastening to the opening of the entrance door by fastening the inner post frame and the outer post frame, and the upper side of both post frames has a mark on the inside of the entrance. The inner and outer lids are hinged when opened and biased in the closing direction by a spring, and the maximum opening degree of the inner lid is set to be smaller than the maximum opening degree of the outer lid. The mailbox opening of the front door is characterized by: