JP4484670B2 - Safe door opening / closing structure - Google Patents

Description

  The present invention relates to a structure for opening and closing a safe door provided in a public telephone or a vending machine.

In general, in the opening and closing structure of a safe door provided in this type of device, in order to destroy the door and prevent the safe from being stolen, high sealing properties and measures for preventing destruction are required. An open / close structure using a so-called inner hinge type hidden hinge provided inside the door is employed. In other words, the conventional safe door opening / closing structure includes a door that opens and closes the opening of the housing, and the shaft body that is engaged in the long hole of the fixed body provided in the housing is pivotally supported on the door side, and the shaft body is long. There is one that opens a door by moving it within a hole and sliding the door and then pivoting about a shaft (see, for example, Patent Document 1). In addition, the applicant could not find any prior art documents closely related to the present invention by the time of filing other than the prior art documents specified by the prior art document information described in the present specification. .
JP-A-10-110568 (paragraphs “0027” to “0029”, FIGS. 1 to 5)

  However, in the above-described conventional opening / closing structure of the safe door, since the shaft body extending in the vertical direction is moved in the elongated hole, it is necessary to secure a wide space in the vertical direction and the horizontal direction in order to attach the hinge. There was a problem that the hinge could not be accommodated in a limited space. In addition, a structure for sliding the safe door and a structure for rotating the door are required, which not only increases the number of parts but also complicates the structure.

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to reduce the occupied space of the support portion necessary for opening and closing the safe door and to simplify the structure.

To achieve this object, the invention according to claim 1 is an open / close structure of a safe door that opens and closes an opening formed in a casing, and locks both sides of the safe door from the opening of the safe door. A pair of locking means for restricting removal of the locking means, locking means for releasing one of the locking means, and opening of the safe door by releasing one locking of the locking means by the locking means Drop-off restricting means for restricting drop-off from the opening, and the other of the locking means includes a locking pin protruding in parallel with the opening surface of the opening inside the side of the opening, and a side edge of the door And a supported plate having a loose insertion hole through which the locking pin is loosely inserted, and the drop-off restricting means is provided inside at least one of the upper and lower portions of the opening. Inside of the piece and at least one of the upper and lower ends of the door The engagement protrusion is provided to engage with the engagement piece, and the engagement protrusion is released from the engagement pin by releasing the engagement between the engagement pin and the loose insertion hole of the supported plate. A release portion for releasing the engagement with the child is provided.

The invention according to claim 2 is the invention according to claim 1, wherein the engagement piece is provided on the upper side of the opening, a mounting plate is provided on the lower side of the opening to face the engagement piece, and the door The placement portion to be placed on the placement plate is provided on the lower end side of the plate.

According to the first aspect of the present invention, since the safe door is not accidentally dropped when the safe door is removed from the housing by providing the drop-off restricting means, the safe door can be prevented from being damaged. it can. In addition, a locking pin provided on the housing side is provided on the side of the opening of the housing, and an engagement piece is provided on either the upper or lower side of the opening, thereby occupying the space occupied by these members in the housing. Becomes smaller.

According to the second aspect of the present invention, when opening the safe door from the opening and closing the safe door, the safe door can be temporarily placed on the placing plate, thereby reducing the burden on the operator. Is done.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a public telephone to which a safe door opening and closing structure according to the present invention is applied, FIG. 2 is a front view showing the right half of the main part in a cross-sectional view, and FIG. 3 is a cross-sectional view taken along line III-III in FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 2. FIG. 4A shows a state where the opening is closed by the safe door, and FIG. 4B shows a state where the safe door is opened. FIG. 5 is a cross-sectional view taken along the line IV-IV in FIG. 2. FIG. 5 (A) shows a state in which the safe door is moved and the engagement protrusion faces the release portion of the engagement plate. Indicates a state in which the safe door is removed from the housing.

  1 is provided with a housing 2 formed in a box shape in a substantially sealed state, and a handset 3 hung on a side portion of the housing 2 via a hanger. On the upper side of the front plate of the housing 2, there are a coin insertion slot 4 for inserting coins, a dial button 5, a display 6, a card insertion slot 7 for inserting a card, and a card return slot 8 for returning the inserted card. Is provided. An opening 9 formed in a rectangular shape is provided on the lower side of the front plate of the housing 2, and the opening 9 is opened and closed by a safe door 10, and the lock 11 and coin return are provided in the safe door 10. A mouth 12 is provided.

  In FIG. 2, reference numerals 15 and 15 denote locking pins that project from the inner side of the housing 2 toward the opening 9 in the direction of arrow A so as to be parallel to the opening surface of the opening 9. As shown in FIG. 4, the base end portion is formed in a large diameter shape, and a step portion 15a is formed in the central portion. Reference numeral 16 denotes an engagement piece. As shown in FIG. 3, one end portion is bent in a crank shape in cross section, and a recess portion 17 and a bent portion 18 extending in a direction orthogonal to the engagement piece 16. And are provided.

  The engaging piece 16 has a bent portion 18 attached to the inside of the housing 2 so as to face the end in the direction of arrow B above the opening 9 of the housing 2. As shown in FIG. 4, the engagement piece 16 includes a first engagement portion 16 a extending in the direction of an arrow CD in which an engagement protrusion 26 described later of the safe door 10 is engaged, and the first engagement portion 16 a. An inclined portion 16b provided continuously with the engaging portion 16a, a second engaging portion 16c provided continuously with the inclined portion 16b and extending in the direction of arrow AB, and an arrow A of the second engaging portion 16c. It is formed by a notch portion 16d as a release portion that is provided at an end portion in the direction and is disengaged from the engagement protrusion 26.

  In FIG. 3, reference numeral 19 denotes a mounting plate having a U-shaped cross section for mounting a mounting portion 27 (to be described later) of the safe door 10, which faces the engaging piece 16 as shown in FIG. The bottom of the opening 9 of the housing 2 is attached to the inside of the housing 2 so as to face the end in the arrow B direction. In FIG. 2, reference numeral 20 denotes a lock plate formed in an inverted U-shape, which is attached to the inside of the housing 2 so as to surround the half of the opening 9 of the housing 2 in the arrow A direction. As shown in FIG. 4, the end portion of the plate 20 on the side of the opening 9 is bent in a cross-sectional crank shape and extends in a direction orthogonal to the recess 20 a and the lock plate 20 (arrow C direction). Is provided.

  In FIG. 3, reference numeral 23 denotes a bracket attached to the inside of the safe door 10, and a supported portion 24 as a supported plate orthogonal to the opening surface of the opening portion 9 is arranged in the arrow C direction at an end portion in the arrow B direction. As shown in FIG. 2, the supported portion 24 is positioned so as to slightly protrude in the B direction from the end surface in the arrow B direction of the safe door 10. In addition, the supported portion 24 is provided with loose insertion holes 24a and 24a having a slightly larger diameter than the above-described locking pins 15 and 15 into which the locking pins 15 and 15 are loosely inserted.

  In FIG. 2, at the upper end of the safe door 10 of the bracket 23 and on the arrow B direction side, a bent portion 25 perpendicular to the opening surface of the opening 9 is folded in the direction of arrow C as shown in FIG. A bent portion is formed, and an engaging protrusion 26 is implanted in the bent portion 25. In FIG. 2, on the lower end of the safe door 10 of the bracket 23 and on the arrow B direction side, as shown in FIG. 3, it is orthogonal to the opening surface of the opening 9 and is mounted on the mounting plate 19 described above. The mounted portion 27 is bent in the direction of arrow C.

  In FIG. 2, 30a, 30b, and 30c are locking plates rotatably supported on the inner side of the safe door 10 via a shaft 31, and are interlocked by rotating the lock 11 with a key. Then, it rotates clockwise or counterclockwise. In FIG. 4, 32 is a box-shaped cover that covers the three locking plates 30a, 30b, and 30c, and a window 33 through which the locking plates 30a, 30b, and 30c project is provided on the three surrounding walls. It has been.

  With this configuration, as shown in FIG. 4A, the locking pin 15 is loosely inserted into the loose insertion holes 24 a and 24 a of the supported portion 24 of the bracket 23, and the opening 9 of the housing 2 is inserted. When the lock 11 is rotated in the clockwise direction in FIG. 2 with the safe door 10 closed, the locking plates 30a, 30b, and 30c rotate in the clockwise direction about the shaft 31, and from the window 33 of the cover 32. Projects outward. As shown in FIG. 4, the protruding tip portions of the locking plates 30 a, 30 b, and 30 c are locked to the lock portion 20 b of the lock plate 20 to restrict the removal from the opening 9 on one end side of the safe door 10. . These locking plates 30a, 30b, and 30c and the lock portion 20b of the lock plate 20 constitute one locking means for restricting the removal of the safe door 10 from the opening 9. Further, the loose insertion holes 24 a and 24 a of the supported portion 24 of the bracket 23 and the locking pin 15 constitute the other locking means for restricting the removal from the opening 9 of the safe door 10.

  Next, the opening / closing operation of the safe door in the safe door opening / closing structure configured as described above will be described mainly with reference to FIGS. First, an operation of opening the safe door shown in FIG. 4A from the closed state will be described. In FIG. 2, by rotating the lock 11 counterclockwise with a key, the three locking plates 30a, 30b, 30c are rotated counterclockwise about the shaft 31, and the locking plates 30a , 30b, 30c are retracted from the window 33 of the cover 32 into the cover 32.

  Therefore, since the locking between the locking plates 30a, 30b, 30c and the lock portion 20b of the lock plate 20 is released, the end of the door 10 on the arrow A side is opened as shown in FIG. When separated from 9, the loose insertion hole 24 a of the supported portion 24 is locked to the locking pin 15, so that the safe door 10 rotates counterclockwise around the supported portion 24 and opens the opening 9. Some open. At this time, since the engaging protrusion 26 of the safe door 10 engages with the second engaging portion 16c of the engaging piece 16, the safe door 10 is prevented from dropping from the opening 9. For this reason, since the safe door 10 is not accidentally dropped, damage to the safe door 10 and the like can be prevented. At this time, since the placement portion 27 of the safe door 10 is temporarily placed on the placement plate 19 of the housing 2, the weight of the safe door 10 is supported by the placement plate 19. Therefore, the burden on the operator is reduced. Therefore, here, the engagement protrusion 26 and the engagement piece 16 constitute a drop-off restricting means for restricting the drop-off from the opening 9 of the safe door 10.

  Next, the safe door 10 is moved in the direction of arrow A, and as shown in FIG. 5A, the loose insertion hole 24a of the supported portion 24 is unlocked from the locking pin 15, and the engaging protrusion 26 is moved. Is opposed to the notch 16 d of the engagement piece 16. From this state, the safe door 10 is moved in the direction of arrow D by moving the safe door 10 in the direction of the arrow D, so that the safe door 10 is removed from the housing 2 since the engaging protrusion 26 passes through the notch 16d. Can do.

  Since the safe door 10 can be removed from the housing 2 in this way, the safe door can be removed when the safe is put in and out as compared with the case where the safe door 10 is attached to the housing even when the opening is opened as in the prior art. Since 10 does not interfere, workability is improved. Further, on the housing side, a locking pin 15 is provided inside the side end of the opening 9, and an engagement piece 16 projects from the upper end of the opening 9 in a direction perpendicular to the opening surface of the opening 9. Therefore, the space occupied by the locking pins 15 and the engagement pieces 16 in the housing 2 is reduced.

  Next, the operation of closing the opening of the housing with the safe door will be described. As shown in FIG. 5 (B), the engaging protrusion 26 of the safe door 10 is opposed to the notch 16d of the engaging piece 16, and the engaging protrusion 26 is notched as shown in FIG. 5 (A). The safe door 10 is moved in the direction of arrow C so as to pass 16d. In this state, since a part of the placement portion 27 of the safe door 10 is placed on the placement plate 19 of the housing 2, when the safe door 10 is moved in the direction of arrow B on the placement plate 19, As shown in FIG. 4B, the engagement protrusion 26 is guided by the second engagement portion 16 c of the engagement piece 16, and the distal end portion of the locking pin 15 is inserted into the loose insertion hole 24 a of the supported portion 24. I will be taken in. Thus, since the mounting plate 19 for mounting the safe door 10 is provided, the weight of the safe door 10 can be supported by the mounting plate 19, so that the burden on the operator is reduced and the engagement is achieved. Since the engaging piece 16 for guiding the protrusion 26 is provided, the attaching operation can be performed easily and in a short time.

  Further, when the safe door 10 is rotated clockwise about the supported portion 24 engaged with the locking pin 15, the engaging protrusion 26 is guided to the inclined portion 16 b of the engaging piece 16 and the first portion is moved. Engage with one engaging portion 16a. In this state, the supported portion 24 comes into contact with the step portion 15a of the locking pin 15 and the end portion of the safe door 10 in the direction of arrow A fits into the concave portion 20a of the lock plate 20 as shown in FIG. In combination, the opening 9 of the housing 2 is closed by the safe door 10.

  In FIG. 2, the locking plates 30 a, 30 b, 30 c are rotated clockwise about the shaft 31 by rotating the lock 11 clockwise with the key, and as shown in FIG. The front ends of the locking plates 30a, 30b, and 30c protrude from the window 33 of the cover 32 and engage with the end surface of the lock portion 20b. Therefore, the safe door 10 is locked on the arrow A direction side by the locking plates 30a, 30b, 30c and the lock portion 20b of the lock plate 20, and the end in the arrow B direction is locked on the locking pin 15 and the supported portion 24. And is attached to the housing 2 with the opening 9 closed.

It is a front view of the public telephone to which the opening / closing structure of the safe door according to the present invention is applied. It is a front view showing a right half of a main part in a cross section in a public telephone to which a safe door opening and closing structure according to the present invention is applied. It is the III-III sectional view taken on the line in FIG. FIGS. 4A and 4B are cross-sectional views taken along line IV-IV in FIG. 2, in which FIG. 2A shows a state where the opening is closed by the safe door, and FIG. 2B shows a state where the safe door is opened. FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 2, in which FIG. (A) shows a state in which the safe door is moved and the engagement protrusion faces the release portion of the engagement plate, and FIG. The state which removed from the housing is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Public telephone, 2 ... Housing, 9 ... Opening part, 10 ... Safe door, 11 ... Lock, 15 ... Locking pin, 16 ... Engagement plate, 16d ... Notch, 19 ... Mounting plate, 20 ... Lock plate, 20b ... Lock part, 24 ... Supported plate, 24a ... Free insertion hole, 26 ... Engagement protrusion, 27 ... Mounted part, 30a thru | or 30c ... Locking plate.

Claims (2)

A safe door opening / closing structure for opening and closing an opening formed in the housing, and a pair of locking means for locking both sides of the safe door and restricting the removal from the opening of the safe door, and these locking means A locking means for releasing one of the locking means, and a drop-off regulating means for regulating the drop-off from the opening of the safe door by releasing one locking of the locking means by the locking means ,
The other of the locking means includes a locking pin protruding in parallel with the opening surface of the opening on the inside of the side of the opening, and a play in which the locking pin is loosely inserted at a side end of the door perpendicular to the door. The dropout restricting means includes an engagement piece provided on at least one of the upper and lower portions of the opening, and at least one of the upper and lower ends of the door. And an engagement protrusion that engages with the engagement piece, and the engagement piece releases the engagement between the engagement pin and the loose insertion hole of the supported plate. An opening / closing structure of a safe door, wherein a release portion for releasing the engagement with the engagement protrusion is provided . The opening / closing structure of the safe door according to claim 1, wherein the engaging piece is provided on an upper side of the opening, a mounting plate is provided on the lower side of the opening, and the mounting plate is opposed to the engaging piece, An opening / closing structure of a safe door, characterized in that a placement portion placed on the placement plate is provided.

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