JPH076853Y2 - Post opening / closing structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to an opening / closing structure of a post used as a mail box or a newspaper box in a general household.

2. Description of the Related Art Conventionally, in a post used in general households, an opening for inserting a postal matter into the post and an opening for taking out the postal matter out of the post And a section are provided. A lid is pivotally supported in each of the openings, and the lid has a hinge at the upper portion of the loading opening and a hinge at the lower portion of the ejection opening. The ones that are used are commonly used.

SUMMARY OF THE INVENTION As described above, in the lid body provided in the opening for taking out, the hinge is provided in the lower portion, and the lid body is opened downward by rotating the lid body. Since it is configured to be closed by pivoting upward, a lock device for pivoting the lid upward and then closing it is required. Therefore, when the lid is opened and closed, the lock device must be unlocked and turned, which complicates the opening and closing operation.

Of course, if a locking device that engages and disengages when opening and closing the lid is used without unlocking and turning operations, the complicatedness at the time of opening and closing can be eliminated. The engagement and the disengagement are performed by an operation or a pulling operation. Therefore, if the engagement of the locking device is set firmly in order to surely close the lid, the engaging operation force at the time of closing becomes large, and there is a disadvantage that the disengagement operation becomes difficult. When the engagement of the locking device is weakened to facilitate the engagement, the operating force at the time of closing becomes small and the disengagement becomes easy, but the closure of the lid becomes uncertain.

The present invention has been made in view of such a conventional problem, and can securely lock the lid without requiring a large operation force when closing the lid, and further, can open / close the lid. It is an object of the present invention to provide a structure for opening and closing a post that can be smoothly performed.

Means for Solving the Problems In order to solve the above problems, according to the present invention, an opening for taking out is provided on a predetermined wall surface that separates the post body, and another opening is provided on both sides of the opening for taking out. In a structure in which both ends of a lid body that opens and closes the opening are rotatably supported on opposing wall surfaces, at least one of the opposing wall surfaces has a substantially concentric shape with respect to a rotation center of the lid body. The elastic body is fixed to the elastic body, and a convex portion that bulges in the radial direction is provided on the elastic body. A recess is provided for engaging the protrusion when the body is in the fully closed position.

Further, the annular portion has a first concave portion that engages with the convex portion when the lid body is at the fully closed position, and a second concave portion that engages with the convex portion when the lid body is at the fully open position. The annular elastic body is a leaf spring elastically deformed into an annular shape,
By bending the leaf spring, the convex portion is provided, and further, at least one of the wall surfaces facing each other is formed by projecting an annular tubular portion along the inner side of the annular portion, and the tubular portion is formed. It is preferable that the cutout portion is formed, the leaf spring formed in the annular shape is housed and fixed in the tubular portion, and the convex portion is projected to the outside of the tubular portion through the cutout portion. .

In addition, a curved guide portion is formed on at least one of the opposite wall surfaces, and the lid body is rotated at the time of moving from the fully closed position to the fully open position and from the fully open position to the fully closed position. At the same time, a sliding contact portion for maintaining a sliding contact state with the guide portion is formed.

Action In the above configuration, when the lid body is in the fully closed position, the concave portion provided on the lid body side engages with the convex portion, whereby the lid body is closed. When the lid body is rotated in the opening direction from the fully closed state, the concave portion is separated from the convex portion, and the lid body is allowed to rotate in the opening direction.

At this time, since the convex portion is formed as an elastic body that is substantially concentric with respect to the center of rotation of the lid body, and the concave portion is provided in the annular portion that extends along the elastic body, the lid body is free to move freely. When the lid is rotated by applying an operating force to the end, a torque corresponding to the distance between the free end and the rotation center is generated. Therefore, even if the concave portion and the convex portion are firmly engaged with each other, the concave portion and the convex portion can be easily separated by the torque.
The operation at the time of opening the lid becomes easy while ensuring a firm engagement.

The same applies to the case where the lid body is rotated to the fully closed position, and the concave portion can be easily engaged with the convex portion by the torque when the lid body is rotated.

Further, if the first concave portion and the second concave portion are provided, the lid body is locked not only when the lid body is at the fully closed position but also when the lid body is at the fully opened position, and the post is provided. It becomes possible to pull out the articles thrown in.

Also, if the elastic body is a leaf spring that is elastically deformed into an annular shape, the convex portion can be firmly engaged with the concave portion by the elastic force of the leaf spring in the radial direction, and the concave portion is dissociated from the convex portion. When doing so, or when the concave portion is engaged with the convex portion again, the leaf spring provided with the convex portion can be disengaged with a small operating force due to the overall elastic deformation.

Further, it is preferable that at least one of the wall surfaces facing each other has the annular leaf spring housed in a molded tubular portion and manually fixed thereto, and the convex portion is projected from a cutout portion formed in the tubular portion. If so, the leaf spring can be easily assembled, and the assembling work is facilitated.

Furthermore, a curved guide portion is formed on the wall surface,
Further, if the lid body is provided with a sliding contact portion that maintains a sliding contact state with the guide portion during rotation, the lid body rotates smoothly without rattling.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. That is, as shown in FIGS. 2 to 4, the post main body 1 is integrally formed with a loading opening 2 and a loading opening 3 on the front wall side. 2 is provided with a flap 4 that is pivotally supported at the top,
The take-out opening 3 is provided with a lid 8 for opening and closing the take-out opening 3.

Side walls 5 and 5 facing each other are provided on the sides of the openings 2 and 3, and a plurality of screws 29 are formed on the surfaces facing each other on the side walls 5 and 5. By, the inner plate 7 is fixed. On the inner plate 7, as shown in FIG.
A cylindrical portion 9 having a concentric circle shape is integrally formed with respect to the rotation center P of the, and the upper end portion of the cylindrical portion 9 is shown in FIG.
As enlarged and shown in (B), an upper cutout 10 and a lower cutout 11 are provided at target positions.

A ring-shaped leaf spring 13 is housed inside a tubular portion 9 formed on an inner plate 7 screwed to one side wall surface 5, and the leaf spring 13 is bent at its lower end. Mounting pieces 14,14
Is fixed in the lower notch 11 by inserting a fixing piece 12 between the mounting pieces 14 and 14.
Further, as shown in FIGS. 6 (A) and 6 (B), the leaf spring 13 is provided with a convex portion 15 projecting from the upper cutout portion 10 to the outside of the tubular portion 9. Reference numeral 15 has an upright surface 16 that sharply rises and a tapered surface 17 that gently rises from the general surface of the leaf spring 13.

The lid 8 has left and right side plates 19 and 19 whose lower edges are formed in a curved shape, and a front plate 21 joined along the periphery of the side plates 19 and 19, At the lower end of the face plate 21, as shown in an enlarged view in FIG. 7, when the lid 8 is rotated, a sliding guide for maintaining a slidable contact with the curved guide portion 22 formed on the inner plate 7 is provided. A contact portion 23 is formed.

Further, as shown in FIG. 8, an annular portion 30 is formed on the side plates 19, 19 via the base portion 18, and the annular portion 30 is slidably fitted on the outer peripheral portion of the tubular portion 9. As a result, the lid body 8 is rotatably supported between the side wall surfaces 5 and 6 of the post body 1.

When the lid 8 shown in FIG. 4 (A) is in the fully closed state, the annular portion 30 has the first protrusion 15 that engages with the protrusion 15 as shown in FIG. 5 (A). While the recess 25 is provided, when the lid 8 shown in FIG. 4 (B) is in the fully open state, as shown in FIG. 5 (B), the second engaging with the projection 15 is provided. The recess 26 is provided.

Further, the annular portion 30 has a first stopper 27 that abuts the fixed piece 12 when the first concave portion 25 is engaged with the convex portion 15, and the second concave portion 25. The convex portion 15
A second abutting member which abuts on the fixed piece 12 when engaged with
Stopper 28 is provided.

Reference numeral 24 in the drawing denotes a handle portion provided laterally on the upper end portion of the lid body 8, the lower end edge of the flap 4 is in contact with the inside of the upper edge of the handle portion 24, and the first concave portion. 25 and the second concave portion 26 have an inner peripheral shape along the rising surface 16 and the tapered surface 17 of the convex portion 15. In addition, FIG. 5 (A) (B)
In the figure, S and S are gaps formed between the cylindrical portion 9 and the leaf springs 13, and the leaf springs 13 are configured to bulge into the gaps S and S for elastic deformation. .

In the present embodiment having the above-described structure, when the lid 8 is in the fully closed state [Fig. 4 (A)], as shown in Fig. 5 (A), the first recess 25 is formed. Is the convex portion 15
The lid 8 is closed.

From this fully closed state, when the postal matter or the like put in the post body 1 is taken out, when the fingers are hooked on the handle portion 24 and the lid body 8 is rotated downward, the tapered surface of the convex portion 15 is formed. 17 is pressed by the first recess 25. Then, the leaf spring 13 is elastically deformed so as to bulge into the gap S, S, whereby the first concave portion 25 passes over the convex portion 15 and the lid 8 is allowed to rotate.

At this time, the convex portion 15 is located in the vicinity of the rotation center P of the lid body 8 and has a leaf spring 13 which is substantially concentric with the rotation center P.
Therefore, when the lid body 8 is rotated by applying an operating force to the handle portion 24, a torque corresponding to the distance between the handle portion 24 and the rotation center P is generated. Therefore, even if the first concave portion 25 and the convex portion 15 are firmly engaged with each other, the torque can easily separate the first concave portion 25 and the convex portion 15.

Therefore, even if the engagement between the first concave portion 25 and the convex portion 15 is made strong in order to securely close the lid body 8, a large operating force is not required when opening and the lid body 8 is securely held. It is possible to easily release the lid body 8 while performing a proper closing.

Then, when the lid body 8 reaches the fully open position [FIG. 4 (B)], the second concave portion 26 is projected as shown in FIG. 5 (B).
Engage 15 Therefore, even when the lid 8 is in the fully open position, the lid 8 is firmly held, and mails and the like thrown into the post body 1 can be slid on the front plate 21 of the lid 8 and easily pulled out. Becomes

Also, when the lid body 8 is rotated from the fully open state to the fully closed state, the engagement between the second concave portion 26 and the convex portion 15 is released by the torque as in the case of releasing the lid body described above. However, the lid 8 can easily reach the fully closed position.

Moreover, since the convex portion 15 is projected on the annular leaf spring 13, the convex portion 15 is firmly engaged with the concave portions 25 and 26 by the elastic force of the leaf spring 13 in the radial direction. When the concave portions 25 and 26 are dissociated from the convex portion 15, or the concave portion 2
When 5, 26 are engaged with the convex portion 15 again, due to the overall elastic deformation of the leaf spring 13 provided with the convex portion 15, engagement and disengagement can be performed with a smaller operating force.

Further, since the leaf spring 13 is housed in the tubular portion 9 in advance and fixed by using the fixing piece 12, and the projecting portion 15 is projected from the upper notch portion 10, It is possible to easily assemble the leaf springs 13 without using any of the above, and the assembling work is facilitated, and the manufacturing cost can be reduced.

Further, when the lid body 8 is rotated, FIG.
As shown in FIG. 7B and enlarged in FIG. 7, since the slidable contact portion 23 is kept in slidable contact with the curved guide portion 22, the lid body 8 smoothly moves without rattling. By rotating the lid body 8, it is possible to further improve the operability when opening and closing the lid body 8.

In this embodiment, the leaf spring 13 is arranged only on the cylindrical portion 9 formed on the one side wall surface 5, and the lid body 8 is fully opened and fully closed only on one side portion of the post body 1. Although the locking in the state is performed, the leaf springs 13 may be arranged on the tubular portions 9 of the both side portions 5, 5 so that the lid body 8 is locked at the both side portions of the post body 1. .

Effect of the Invention As described above, according to the present invention, a substantially concentric elastic body is fixed to the center of rotation of the lid body, and the convex portion provided on the elastic body engages the concave portion on the lid body side. Therefore, the concave portion and the convex portion can be easily dissociated by the torque when the lid body is rotated.

Therefore, in order to securely close the lid, even if the concave portion and the convex portion are firmly engaged with each other, a large operating force is not required when opening, and the lid is securely closed, The lid can be easily released.

Further, since the first concave portion that engages with the convex portion when the lid body is in the fully closed position and the second concave portion that engages with the convex portion when the lid body is in the fully open position are provided. Even in the fully open position, the lid is firmly held, and mail items and the like put into the post can be easily pulled out.

Further, since the convex portion is provided on the leaf spring formed in an annular shape, the elastic deformation of the leaf spring causes the concave portion and the convex portion to be engaged and disengaged, so that both are firmly engaged. Even in such a case, engagement and disengagement can be performed with a smaller operating force.

Further, since the annular tubular portions are formed by projecting on the wall surfaces facing each other, and the leaf springs are accommodated and fixed in the tubular portions, the leaf springs can be easily assembled, and the assembling work is performed. It can be facilitated and the manufacturing cost can be reduced.

In addition, a curved guide portion is formed on at least one of the wall surfaces facing each other, and a sliding contact portion that maintains a sliding contact state with the guide portion during rotation is formed on the lid body. Therefore, the lid body can be smoothly rotated without rattling, which makes it possible to further improve the operability when opening and closing the lid body.

[Brief description of drawings]

1 is a sectional view taken along the line I-I of FIG. 2 showing an embodiment of the present invention, FIG. 2 is a front view of the same embodiment, and FIG. 3 is a side view of the same embodiment. 4 (A) is a sectional view taken along the line IV-IV in FIG. 2 in the fully closed state of the lid body of the same embodiment, and FIG. 4 (B) is a second view of the lid body of the same embodiment in the fully open state. FIG. 5A is a cross-sectional view taken along the line IV-IV of FIG.
FIG. 5B is an enlarged cross-sectional view of a portion C in FIG.
FIG. 6 (A) is an enlarged sectional view of FIG. 6 (A), FIG. 6 (A) is a side view of the leaf spring, FIG. 6 (B) is a front view of the leaf spring, and FIG. FIG. 8 is a front view in which the central portion of the lid is omitted. 1 ... Post body, 3 ... Opening for taking out, 5 ... Side wall surface, 8 ... Lid, 9 ... Cylindrical part, 10 ... Upper notch,
13: leaf spring, 15: convex portion, 22: guide portion, 23: sliding contact portion, 25: first concave portion, 27: second concave portion, 30: annular portion.

Claims (5)

[Scope of utility model registration request] 1. An opening for taking out is provided on a predetermined wall surface that separates the post body, and both ends of a lid body for opening and closing the opening are provided on other opposite wall surfaces located on both sides of the opening for taking out. In a structure in which the parts are rotatably supported, a substantially concentric elastic body is fixed to at least one of the opposed wall surfaces with respect to the center of rotation of the lid, and the elastic body is expanded in the radial direction. While providing the protruding portion, an annular portion along the outer peripheral portion of the elastic body is formed at the end portion of the lid body, and the protruding portion is engaged with the annular portion when the lid body is at the fully closed position. A structure for opening and closing a post, characterized in that a recess is provided. 2. A first recess that engages with the protrusion when the lid is in a fully closed position, and a second recess that engages with the protrusion when the lid is in a fully open position. The opening / closing part structure for a post according to claim 1, wherein the recessed part is provided. 3. The annular elastic body is a leaf spring formed in an annular shape, and the convex portion is provided by bending the leaf spring. Post opening and closing structure. 4. At least one of the wall surfaces facing each other,
An annular tubular portion along the inner side of the annular portion is formed by protrusion, a notch is formed in the tubular portion, and the leaf spring formed in the annular shape is housed and fixed in the tubular portion, and the convex portion is formed. The opening / closing part structure of the post according to claim 2, wherein the post is projected to the outside of the tubular part through the cutout part. 5. At least one of the wall surfaces facing each other,
The opening / closing part of the post according to claim 1, wherein a curved guide part is formed, and a sliding contact part that maintains a sliding contact state with the guide part is formed on the lid body when rotating. Construction.