JP2005139684A - Lock box structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lock box excellent in strength and rigidity and improve the safety of locks. <P>SOLUTION: A shallow box shaped container is formed in which respective one face of the body 1 and lid 2 of the lock box is opened and the U-shaped opening end edge except the front face plates 61, 62 opposite to the front plate are mutually connected to constitute the lock box. An incision where a member penetrating the front plate comes in and goes out is formed. The height of the front face plate and the forming position is so set that the U-shaped opening end edges are superposed with each other and jointed, After at least one position of the mutually superimposed front face plate is connected, the front face plate and the front plate are connected. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a structure of a lock box, and more particularly to a structure of a lock box that has improved strength and rigidity and improved safety.

  For example, as shown in Patent Document 1 below, the lock box is usually formed by integrally connecting a body 1, a lid 2, and a front plate 3 (see FIG. 1). In FIG. 1, reference numeral 4 denotes a bolt hole.

  The lid 2 is simply a plate material and is screwed so as to cover the upper surface opening of the body 1 through a plurality of pillars (not shown) planted on the bottom surface of the body 1 in FIG.

  Further, the body 1 is formed into a shallow box shape in which, for example, three sides of a rectangular plate material are bent and the upper surface and the front surface facing the front plate 3 are opened, and the front opening edge is expanded outward. A pair of connecting pieces 5, 5 are formed by bending them together, and these connecting pieces 5, 5 are joined to the front plate 3 by screwing or caulking.

  However, the lock box having the structure described above has a cylinder lock mounting portion exposed on the outer surface of the door for the purpose of breaking, even if the free side edge of the door where the front plate is exposed is hidden by the door frame during locking. May receive violent external forces.

In this case, if the strength of the lock box is insufficient, the lock box will be destroyed, and it cannot be said that there is no possibility of operating the internal locking member. There is a possibility of swinging in the thickness direction of the lock box. If the degree of engagement between the bolt and the strike plate is small at this time, the bolt may come out of the bolt hole and the door may be opened.
Japanese Utility Model Publication No. 7-11678

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a lock box excellent in strength and rigidity, thereby eliminating the above-mentioned disadvantages and improving the safety of the lock.

  In order to achieve the above object, the present invention forms the body and lid of the lock box into a shallow box shape in which the side plate of the lock box is the bottom and each side is open. Each of the openings is opposed to each other, and a U-shaped opening edge excluding the front plate facing the front plate is joined to each other to form a lock box. The front plate penetrates the front plate. While forming a notch through which the members appear and disappear, set the height and formation position from the bottom surface of the front plate so that the U-shaped opening edges can be overlapped and bonded together, The front plate and the front plate are bonded together at at least one location of the front plates that are superposed on each other, and then bonded together at a plurality of locations.

  In the present invention configured as described above, since the body and the lid are both formed into a shallow box shape, and the opening edge is joined to each other to form the lock box, the lid is plate-shaped. Rigidity is significantly improved compared to conventional lock boxes.

  Also, the body and the front plate on the side facing the front plate of the lid are overlapped with each other and bonded at least at one place, and the front part of the lock box is connected to the front plate via the stacked front plate. As a result, the strength is improved.

  The body and lid are formed into a shallow box shape, and the opening edges are joined to each other to form a lock box, and the front plate facing the front plate of the body and lid is superposed on each other. By combining with the front plate, the rigidity and strength of the lock box were significantly increased.

Embodiments of the present invention will be described below with reference to FIGS.
2 to 4, reference numeral 1 denotes the body of the lock box. This body 1 has a rectangular portion which is one side surface of the lock box as a bottom surface 1a, and an upper piece 1b and a rear piece (right side in FIG. 2). 1c, the lower piece 1d, and the front plate 61 are each bent into the near side and formed into a shallow box shape with one side open.

  On the other hand, in FIG.5 and FIG.6, the code | symbol 2 shows the lid | cover of a lock box, and this lid | cover 2 makes the rectangular part used as the other side surface of a lock box the bottom face 2a like the above-mentioned body, its upper piece 2b, (Right side in FIG. 2) 2c, the lower piece 2d, and the front plate 62 are formed in a shallow box shape in which one side is opened by bending each side in the drawing.

  In the lock box according to the present invention, the openings of the body 1 and the lid 2 are opposed to each other, and the edges of the upper pieces 1b and 2b, the rear pieces 1c and 2c, and the lower pieces 1d and 2d are joined to each other. Are combined in this way.

  However, in the illustrated embodiment, the height from the bottom surface of the upper, lower and rear pieces is not uniform, and the other portions except for the central part of the rear pieces 1c, 2c have the same height from the bottom surfaces 1a, 2a. It is set so that the interval between the bottom surfaces 1a and 2a serving as side plates becomes a predetermined value when the edges of the other portions are joined and joined together.

  On the other hand, the center part of the rear piece 1c of the body 1 and the front part of the upper and lower pieces 1b and 1d (the left part in FIGS. 2 and 3) are approximately 2 times higher than the other part. A projection (not numbered) is formed by doubling, and correspondingly, the center portion of the rear piece 2c of the lid 2 facing the portion whose height is doubled, and above, The front portions of the lower pieces 2b and 2d (the left portion in FIG. 5) are notched to form engagement notches (not numbered).

  Further, small protrusions that are not numbered are formed on a part of the lower pieces 2b and 2d on the lid (see FIG. 6), and correspondingly on the upper and lower pieces 1b and 1d. Are formed with shallow engagement notches (see FIG. 3) that are not numbered.

  This is because when the body 1 and the lid 2 are coupled, these protrusions and the engagement notches are engaged with each other to facilitate the setting of the relative positions.

  Further, the front plate 61 of the body and the front plate 62 of the lid are arranged in the center in order to avoid interference with dead bolts 7 and latch bolts 8 and the like (see FIG. 7) and the lock box and members that pass through the front plate 3. As a result, the front plates 61 and 62 are divided into upper and lower parts, respectively.

  Furthermore, in the illustrated embodiment, the distance between the front plate of the lid 2 and the rear piece 2c is set to be smaller than that of the body 1 by the thickness of the front plate of the body.

  In other words, when the body 1 and the lid 2 are combined, the front plates 61 and 62 of the body and the lid can be joined to each other as shown in FIG.

  In the illustrated embodiment, in other words, the lock box is assembled so that the front plates 62, 62 divided into the upper and lower parts of the lid 2 are located behind the front plates 61, 61 of the body 1. The formation position is set so as to be located inside the front plate of the body 1, but this may be formed so that the front plates 61 and 62 are alternately on the front side in the front-rear direction. Of course.

  However, at this time, a burring process, which will be described later, is performed on the front plate on the side of the lock box.

  In order to allow the front plates 61 and 62 to be joined to each other when the body and the lid are combined, the height from the bottom plates 1a and 2a is joined to the other bottom plate, or It is set to be close to this with a slight gap.

  On the other hand, as shown in FIGS. 5 and 6, a predetermined portion of the front plate 62 above the lid is burring 9 inside, and a female screw hole is formed in the inner cylinder of this burring.

  Also, two portions of a predetermined portion of the front plate below the lid are burringed 9 inside, and female screw holes are also formed in the inner cylinder portion.

  Further, when the body and the lid are combined, the three portions of the front plate 61 of the body that are aligned with these female screw holes have two screw insertion holes in order from the top, as shown in FIG. And the screw insertion hole with the bottom plate is formed, respectively.

  As shown in FIGS. 4, 6, and 7, the extending portions in front of the upper piece 1 b and the lower piece 1 d are bent 90 degrees upward and downward to form the connecting piece 5 (see FIG. 1). It is the same as the conventional lock box.

  The body 1 and the lid 2 configured as described above incorporate a locking member and a locking member on the inner side, and engage the protrusions and the engagement notches that protrude from the bent portion with each other. In a state where the face plates 61 and 62 are joined to each other, as shown in FIG. 7, the front face plates 61 and 62 are joined by screws using the lowermost burring portion.

  In the lock box according to the present invention, similarly to the conventional lock box, a plurality of support columns 13 and 13 (see FIG. 7) are used, and the center portions of the side plates are screwed at a plurality of locations.

  Next, as shown in FIGS. 7 and 8, the front plate 3 and the front plates 61 and 62 are connected to the screw 11 by two screws using the upper two burring portions of the front plate.

  Further, in the illustrated embodiment, the screw holes 12 at the upper and lower ends of the front plate 3 are subjected to a fringing process, and this portion is caulked to the opening of the connecting piece 5, whereby the lock box and the front plate 3. The bond is further strengthened.

  Incidentally, the lock box assembled as described above has a screw hole which is inserted into the vertically long opening formed on the free side edge of the door and the upper and lower ends of the front plate 3 are opened. 12 is screwed to the free edge of the door.

  In the illustrated embodiment, the front plates 61 and 62 and the front plate 3 and the front plate 3 are connected by screws, and screwing is currently used as a practical connection method. Or, it does not mean that bonding with an adhesive is impossible.

  Since the lock box according to one embodiment of the present invention configured as described above is formed in a box shape with a single-sided open lid, which is conventionally plate-shaped, the cross-sectional corrugated plate is compared with a flat plate. For the same reason that the bending rigidity is remarkably large, the bending rigidity is remarkably increased as compared with the conventional one.

  Since the bending rigidity is a ratio between the bending moment applied to the lock box and the amount of deformation, an increase in rigidity is synonymous with an improvement in strength.

  On the other hand, the strength opposite to the force for shearing the screw 11 is not a problem because the lock box is embedded in the door in the first place and the lock box is not subject to the force in such a direction.

The diagrammatic appearance perspective view which expands and shows a component in order to explain the structure of the conventional lock box. Side view of the body. Top view of the body. Front view of the body. A side view of a lid. The rear view of the lock box which shows a body and a lid | cover separately. The partial cross section side view of the lock box combined with the front board. The front view of a front board.

Explanation of symbols

1 body 2 lid 3 front plate 4 bolt hole 5 connecting piece 7 dead bolt 8 latch bolt 9 burring 11 screw 12 screw hole

Claims (3)

  The body and lid of the lock box are molded into a shallow box shape with the side plate of the lock box as the bottom, and each side is open, with each body and lid facing each other and facing the front plate. The U-shaped opening edges excluding the front plate are joined together to form a lock box. The front plate is formed with a notch through which a member that passes through and protrudes through the front plate is passed. The height from the bottom of the face plate and the formation position are set so that the U-shaped opening edges can be joined together in a state where they are joined together, while at least one of the front plates that are joined together. A structure of a lock box, wherein the front plate and the front plate are joined to each other after being joined together and joined at a plurality of locations.   2. The lock box structure according to claim 1, wherein the coupling between the front plates and the coupling between the front plate and the front plate are screw couplings.   3. A protrusion is formed on at least one of the U-shaped opening edges of the body and the lid, and an engagement notch for engaging with the other opening edge is formed on the other opening edge opposite to the protrusion. The structure of the lock box as described in 1.

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