SU1305064A1 - Letter box - Google Patents

Abstract

The invention relates to postal communication, more specifically to postal mailboxes, and is aimed at ensuring the ordered stacking of correspondence. The mail box contains a housing in the front wall of which a slot for receiving correspondence is formed, a guide plate 10 is placed on the lower edge of the slot 7, placed inside the box at an angle of 28-32 to the horizontal. The upper portion of the guide plate 10 is bent and placed over the plate 10 parallel to it. In the rear wall 5, on the inner side, it has a rough surface with a portion 11. The lower edge of the guide plate 10 is placed at a height equal to 2.16-2.17 of the width of the crate, and is separated from c 9 (L CA: C71 ~ Oi

Description

the back wall at a distance equal to 0.96-0.98 of the box width, the length of the plate 10 from the attachment point to its lower edge is 0.55-0.56 of the box width. The letters 8, when passing through the slit 7, are bent, interact with the upper wall 2 and the guide plate 10, as a result of which the speed of the stuffing of letters is limited and approximately equal. After the trailing edge of the letter 8 passes the curved section of the plate 10, the letter melts, slipping between the top wall 2 and the guide plate 10, the distance between the guide plate 10 and the top wall is approximately twice the height of the slot A, thereby causing the letter to slide into the drawer are improving. Letters or postcards 8, which at the time of descent from the guide plate 10 have a relatively high speed, move along a trajectory close to the straight line, and, hitting the front edge against the rear

The invention relates to the field of postal communication.

The purpose of the invention is to ensure the orderly arrangement of correspondence.

Figure 1 shows the mailbox, front view; figure 2 - the same cross section.

The mailbox contains a case with a bottom 1, top 2, side 3 and 4, rear 5 and front 6 walls, the last of which has a slot 7 for receiving correspondence — letters and postcards 8. The slot 7 is covered with a rounded fixed visor 9. The box is provided with a guide plate 10 attached to the lower edge of the spruce 7 and placed inside the box under the gloom 28-32 ° to the horizontal, while the upper portion of the guide plate 10 is bent and placed above the plate parallel to it. The lower edge of the guide plate 10 is placed at a height k equal to 2.16-2.17 of the width of the crate b, separated from the rear wall 5 at a distance of 0.96-0.98 and the shirinka 5, going down. Letters or postcards having a lower speed move along a parabolic trajectory, slipping the leading edge along the wall 5. When letters and postcards 8 are accumulated in the foot staples, letters with a lower initial speed may fall into the gap between the foot and the wall 5 and take a vertical position . In order to prevent this phenomenon, the inner surface of the back wall has a shaggy area 11, for example, a horizontal saw-tooth ribbing, preventing the front edge of the letter from sliding on it. In order to prevent jamming of letters or postcards 8-when inserted between the guide plate 10 and the rear wall 5, the roughness zone is separated from the lower edge of the guide plate 10 at a distance equal to the length of box E, slightly longer than the length of the standard letter. 2 Il.

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of the box b, the length of the plate 10 in the area from the point of attachment to its lower edge is 0.55-0.56 width of the box b, the upper wall 2 of the box is parallel to the guide plate 10, the back wall 5 has a rough surface 11 on the inner side the surface, the distance between the upper edge of which and the lower edge of the guide plate 10 is equal to 1.49-1.51 of the width of the crate b, while the length of the crate I is equal to 1.43-1.51 of its width b, and the inner radius g of the rounding of the visor 9 is 0.11-0.12 of the width of the crate b. Door 12 serves to unload the packs of letters.

The device works as follows.

A letter or postcard 8 is thrown by the sender into the box through the slit 7.

By making the slit 7 in the form of a curved canal, letters having a thickness or stiffness exceeding the allowable limits cannot enter the box. Standard letters or postcards 8 when passing through the slot 7

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bend, interact with the upper wall 2 and the guide plate 10, as a result of which the speed of the injection of letters is limited and about equalized. After the trailing edge of the letter or postcard 8 bends the guide plate 10, the letter spreads out, slipping between the top wall 2 and the guide plate 10. The distance between the guide plate 1Q and the top wall 2 is approximately twice the height A of goal 7, at the expense of which the conditions for sliding the letter inside the box improve; . Letters or postcards 8, which have a relatively high speed in the descent from the guide plate 10, move along a trajectory close to the line, and, striking the front edge of the rear wall 5, go down and then go down. Letters or postcards that have a lower speed move along a parabolic trajectory, slipping the leading edge along the wall 5. When letters and postcards 8 are accumulated in the foot stack, letters with a lower initial speed can get into the gap between the foot and the wall 5 and take a vertical position . In order to prevent this phenomenon, the inner surface of the rear wall 5 has a rough section 11, for example, a horizontal saw-tooth grooved, which prevents the leading edge of the letter from sliding along it.

To prevent seizure of letters or postcards 8 when injected between the guide plate 10 and the rear wall 5, the upper edge of the section 11 is spaced from the lower edge of the control plate 10 at a distance equal to the length 2, which is slightly longer than the length of the standard letter.

The width of the box b and the length of its I are selected slightly longer than the corresponding width and length of the standard letters and postcards.

The length m of the guide plate 10 in the area from the point of attachment to its lower edge is 0.55-0.56 of the box width b, which ensures the stability of the sliding direction. The magnitude n of the limb of the guide plate 10 is selected for reasons of ease of pushing a letter partially stuck in the slit 7, having a height A of 0.44-0.45 width b.

The coordinates of the lower edge of the guide plate 10, respectively, horizontally and vertically, are chosen in such a way that the maximum number of accumulating letters is ensured, with the minimum number of incorrectly packed letters.

The choice of angles oi 28-32 and 28-32 °, slightly exceeding

the friction angle of the paper on metal provides a steady descent of the letter from the guide plate 10. The radius g of the curvature of the visor and the height of the bent part of the guide plate 10 ensures the required bend of the standard letter or postcard 8 without damage.

The unloading of a pack of letters from the mailbox is done through a door 12 provided with a lock located on the right side wall of the box.

The present invention allows for the ordered stacking of correspondence without introducing a special stacking mechanism only by selecting geometrical shapes and aspect ratios.

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Formula of the invention

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Mailbox, comprising a housing with a bottom, top, side, rear and

The front walls, in the last of which a slot for receiving correspondence is formed, is covered with a rounded fixed canopy, characterized in that, in order to ensure an orderly stacking of correspondence, it is equipped with a guide plate attached to the lower edge of the slot and placed inside the box at an angle of 28-32 horizontals, with the upper portion of the guide plate curved and placed above the plate parallel to it, the lower edge of the plate is placed at a height equal to 2.16-2.17 width of the box, separated from the rear wall by When standing equal to 0.96-0.98 of the box width, the plate length in the area from the attachment point to its lower edge is 0.55-0.56 box width, the top wall of the box is parallel to the guide plate, the back wall with the inner side has a rough surface, the distance between the upper edge of which is 13050646

and the lower edge of the guide width is flat, and the inner radius of the width is 1.49–1.51 width of the box, the round ratio is 0.11 — the length of the box is 1.43–1.5.1 0, 12 width box.

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post office

Editor L.Gratillo

Compiled by D.Teplova Tchred L. Serdyukuva

Order 1375/16 Circulation 646 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

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Proofreader L. Pilipenko

Claims (1)

The claims and A mailbox containing a body with a bottom, upper, side, rear and front walls, the last of which has a slot for receiving correspondence, covered by a rounded fixed visor, characterized in that, in order to ensure an orderly packing of correspondence, it is equipped with a guide plate, attached to the bottom edge of the slit and placed inside the box at an angle of 28-32 to the horizontal, while the upper section of the guide plate is curved and placed above the plate parallel to it, the lower edge of the plate is placed at a height equal to 2.16-2.17 width of the box, it is separated from the back wall at a distance equal to 0.96-0.98 width of the drawer 0.56 width of the box, the top wall of the box is parallel to the guide plate, the rear wall on the inside has a rough surface area, the distance between the top edge of which 5 1305064 and the bottom edge of the guide plate is 1.49-1.51 width of the box, while the length the box is equal to 1.43-1.5.1 its width, and the inner radius of curvature of the visor leaves 0,1 ΙΟ, 12 drawer width. Mail to> Figure 1