JP3093379U - Box fastening - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To save a steel plate of a material without reducing a force for fixing a lid. SOLUTION: In a fastener for fixing a lid covering an upper opening of a box body to the box body, a steel plate is bent to form upper and lower lateral pieces 2 and lower lateral pieces at an upper end and a lower end of a rear vertical piece 1. 3 is connected to the front side and a front upper vertical piece 4 is formed below the front end of the upper horizontal piece 2 to form an opening between the lower end of the front upper vertical piece 4 and the front end of the lower horizontal piece 3. The upper part of the shape in which the front upper vertical piece 4 is connected to the lower side of the front end of the upper horizontal piece 2 can be engaged with the upper side of the peripheral part of the lid, and the lower horizontal piece 3 is connected to the lower end of the rear vertical piece 1. The lower part of the shape can be engaged with the outside of the upper opening edge of the box body,
Open and restore the opening when attaching and detaching. The steel plate is bent to form an elongated ridge 6 with one side protruding and the other side depressed.
And forming the elongated ridge 6 with the upper horizontal piece 2 and the rear vertical piece 1
Were arranged across the upper horizontal piece 2 and the rear vertical piece 1.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  The present invention is a lid that covers an opening of a box body for storing various objects such as parts, tools and documents. It relates to a fastener for fixing the box to the box body.

[0002]

[Prior art]

  The present inventor has devised the fastener shown in Patent Document 1 as this type of fastener. That In addition, a fastener made by bending a strip-shaped steel plate has been put into practical use.

[0003]   As shown in FIG. 5, this steel plate fastener is provided at the upper end and the lower end of the rear vertical piece 1, respectively. The upper horizontal piece 2 and the lower horizontal piece 3 are connected to the front side, and the front upper vertical piece is attached to the lower side of the front end of the upper horizontal piece 2. 4 is connected, and the lower front vertical piece 5 is connected to the lower end of the lower horizontal piece 3 to form a shape. It The angle between the rear vertical piece 1 and the upper horizontal piece 2 and the angle between the rear vertical piece 1 and the lower horizontal piece 3 The angles are each slightly smaller than the right angle. The lower horizontal piece 3 is shorter than the upper horizontal piece 2. The front upper vertical piece 4 and the front lower vertical piece 5 are shorter than the rear vertical piece 1, respectively. Front upper vertical piece 4 Between the lower end of the front side and the front end of the lower horizontal piece 3 or the upper end of the lower front vertical piece 5 is opened frontward and downward. is doing.

[0004]   A box that uses this fastener to store parts, tools, documents, etc. for storage and transportation. A plastic container that is made of synthetic resin and has a rectangular parallelepiped shape, as shown in FIG. Box body 11 and a rectangular plate-shaped synthetic resin lid that covers the opening on the top surface of the box body 11 It consists of 12.

[0005]   The box body 11 has an upper end of the side plate 21 as shown in FIG. That is, the horizontal plate 22 is connected to the outside of the upper opening edge in a flange shape, and Between the side plates 21, the horizontal plates 22 and the vertical plates 23, which are connected to the vertical plates 23 and have a vertical cross section. Further, a plurality of ribs (not shown) are fixed.

[0006]   The lid 12 is attached to the top opening of the box body 11 as shown in FIG. The inner vertical plate 27 is connected to the upper side of the periphery of the lid plate 26 to be fitted, and the upper end outside of the inner vertical plate 27 The horizontal plate 28 is connected to, and the outer vertical plate 29 is connected to the lower side of the outer end of the horizontal plate 28. Between the inner vertical plate 27, the horizontal plate 28 and the outer vertical plate 29, which are shaped, the gate shape of the box body 11 The side plate 21, the horizontal plate 22 and the vertical plate 23 each having a vertical cross section are fitted together. Of the lid 12 The peripheral gate-shaped vertical cross-sections 27, 28, 29 are attached with fasteners as shown in FIG. A plurality of points are lowered to form recesses.

[0007]   As shown in FIG. 7, the fastener includes a front upper vertical piece 4 having a gate-shaped vertical cross section and an upper horizontal piece. The piece 2 and the rear vertical piece 1 are fitted to the gate-shaped vertical section 27, 28, 29 around the lid 12. Then, the upper part in which the front upper vertical piece 4 is connected to the lower side of the front end of the upper horizontal piece 2 is located around the lid 12. Engage with the upper side of the portal-shaped longitudinal section 27, 28, 29. The fasteners are also shown in Figure 7. As described above, the lower horizontal piece 3 of the box main body 11 protruding below the outer vertical plate 29 of the lid 12 The lower horizontal piece 3 is contacted with the lower end of the rear vertical piece 1 by hitting the lower end of the vertical plate 23 outside the upper opening edge. The continued lower side portion engages with the outside of the upper opening edge of the box body 11.

[0008]   When fixing the lid 12 covering the top opening of the box body 11 to the box body 11, first, As shown in FIG. 8, the lower end of the front upper vertical piece 4 of the fastener and the lower end of the lower horizontal piece 3 or the front lower side. A front downward opening is formed between the upper end of the vertical piece 5 and the gate-shaped vertical section 27, 2 around the lid 12. 8 and 29, and the lower end of the front upper vertical piece 4 of the fastener is covered with the lid plate 26 of the lid 12 and the inner vertical plate 2 It is applied to the corner between 7 and the lower horizontal piece 3 of the fastener and the front end or front lower vertical piece 5 The upper end is applied to the outer vertical plate 29 of the lid 12. Next, attach the upper side piece 2 of the fastener to the lid 12. Push to the side of the horizontal plate 28, and attach the lower end of the horizontal piece 3 of the fastener to the upper end of the front lower vertical piece 5 with the lid 12 The lower end position of the vertical plate 23, which slides down along the outer vertical plate 29 and the vertical plate 23 of the box body 11. Pass through. Then, the elastic fastener has the front downward opening once expanding and restoring. Originally, as shown in FIG. 7, the upper portion is a gate-shaped longitudinal section 27, 28 around the lid 12, The vertical plate 23 that engages with the upper side of 29 and has the lower side outside the upper opening edge of the box body 11 Engage with the bottom edge.

[0009]   When removing the fastener, lower the lower end of the front lower vertical piece 5 against the side plate 21 of the box body 11. Draw it to the opposite side, widen the front downward opening, and lower the lower horizontal piece 3 to the front end or front lower vertical piece 5 Pass the end through the lower end position of the vertical plate 23 of the box body 11 to restore the front downward opening. It Then, the fastener goes through the state shown in FIG. It is removed from the gate-shaped vertical section 27, 28, 29 around the vertical plate 23 and the lid 12.

[0010]

[Patent Document 1] Registered utility model No. 3051929

[0011]

[Problems to be solved by the device]

  For fasteners made by bending a strip-shaped steel plate as described above, In order to reduce the production cost, the strip-shaped steel plate of the material is thinned or narrowed. It is possible. However, if the steel plate of the material is thin or narrow, the bending rigidity of Down, the fastener is less elastic. Then, the fastener spreads once when attaching and detaching The restoring force of the opening is reduced, and the force for fixing the lid to the box body is weakened. This fixing force is reduced It is desirable to have a technology that saves steel sheets without doing so.

[0012]

[Means for Solving the Problems]

  1) In a fastener for fixing the lid that covers the top opening of the box body to the box body,   The elastic steel plate is bent, and the upper horizontal piece and the upper end of the rear vertical piece are The lower horizontal piece is connected to the front side and the front upper vertical piece is connected to the lower end of the upper horizontal piece. Open the space between the lower end of the front upper vertical piece and the front end of the lower horizontal piece, and The upper part of the shape in which the front upper vertical piece is connected to the side can be engaged with the upper part of the peripheral part of the lid, and Place the lower part of the shape in which the lower horizontal piece is connected to the lower end of the side vertical piece on the outside of the opening edge of the top surface of the box body. It is a steel plate fastener that can be engaged and has a structure that widens the opening to restore when attaching and detaching. hand,   The above steel sheet is bent and elongated, with one side protruding and the other side recessed. Part, and the elongated ridges are crossed over the bent portions of the upper horizontal piece and the rear vertical piece, and It is characterized in that it is arranged across the side horizontal piece and the rear vertical piece.

[0013]   2) In the above fastener,   The elongated protrusions are the bent portions of the upper horizontal piece and the rear vertical piece, and the rear vertical piece and the lower horizontal piece. Across the bent part of the upper horizontal strip, rear vertical strip, and lower horizontal strip Is characterized by.

[0014]   3) In the above fastener,   The elongated ridges are bent parts of the front upper vertical piece and the upper horizontal piece, the upper horizontal piece and the rear vertical piece. Across the bent part of the rear vertical piece and the lower horizontal piece, It is characterized in that it is arranged across the horizontal piece, the rear vertical piece, and the lower horizontal piece.

[0015]   4) In the above fastener,   The elongated ridge portion is characterized in that the protruding side is arranged on the convex side of the bent portion. .

[0016]

[Effect of device]

  In the fastener of the present invention, the elongated ridge formed by bending the steel plate is the steel plate. It is arranged across the bent part of. The elongated ridges can be easily pressed with a press machine. Can be formed. Due to the existence of elongated ridges, the steel plate has bending rigidity And the fastener has a greater opening restoring force. The steel plate of the material is reduced Even if it is narrowed or narrowed, the fastener does not reduce the restoring force of the opening and fixes the lid to the box body. The power does not become weak. Saving steel plate of material without compromising the force of fixing the lid You can

[0017]

[Embodiment of device]

  [First example (see FIGS. 1 to 3)]   The fastener of this example bends elastic steel plate such as stainless steel or spring steel with a press machine. It was manufactured by bending and bending.

[0018]   This steel plate fastener is formed by bending a strip-shaped steel plate, and as shown in FIG. Connect the upper horizontal piece 2 and the lower horizontal piece 3 to the front side at the upper and lower ends of the rear vertical piece 1, respectively. The front upper vertical piece 4 is connected to the lower side of the front end of the side horizontal piece 2, and the front lower vertical side is connected to the lower side of the front end of the lower horizontal piece 3. It is formed in a shape in which the pieces 5 are connected. The angle between the rear vertical piece 1 and the upper horizontal piece 2, Angle between the rear vertical piece 1 and the lower horizontal piece 3, and between the upper horizontal piece 2 and the front upper vertical piece 4. The angle of each is a little smaller than the right angle. The lower horizontal piece 3 is shorter than the upper horizontal piece 2. . The front upper vertical piece 4 and the front lower vertical piece 5 are shorter than the rear vertical piece 1, respectively. Front upper vertical piece Between the lower end of 4 and the front end of the lower horizontal piece 3 or the upper end of the lower front vertical piece 5, open in the front downward direction. I'm talking.

[0019]   The upper part of the shape in which the front upper vertical piece 4 is connected to the lower side of the front end of the upper horizontal piece 2 is the peripheral part of the lid. Engage the upper side of. The lower part of the shape in which the lower horizontal piece 3 is connected to the lower end of the rear vertical piece 1 is Engages outside the top opening edge of the box body. The front downward opening expands when attaching / detaching Origin

[0020]   The strip-shaped steel plate is bent before bending or at the same time as bending, and As shown in FIG. 3, two ridges 6 having one side protruding and the other side depressed are juxtaposed. Are formed. Both ridges 6 have an elongated shape and are arranged along the longitudinal direction of the steel plate. Are lined up. Each elongated ridge portion 6 is a bent portion between the upper horizontal piece 2 and the rear vertical piece 1 and the rear side. Cross the bent portions of the side vertical piece 1 and the lower horizontal piece 3 at right angles, and It is arranged across the side vertical piece 1 and the lower horizontal piece 3. Also, each elongated ridge 6 is The protruding side of each of the bent portions is arranged on the convex surface side of each bent portion and on the outer surface side of the fastener.

[0021]   The box using the fastener with the elongated ridge 6 and the method of using the box are described in [Conventional Techniques]. The operation] is similar to that of the conventional fastener described in detail with reference to FIGS. 5 to 8.

[0022]   [Second example (see FIG. 4)]   In the fastener of the present example, as shown in FIG. Bent portion between piece 4 and upper horizontal piece 2, bent portion between upper horizontal piece 2 and rear vertical piece 1 and rear side Cross the bent portions of the vertical piece 1 and the lower horizontal piece 3 at right angles, and It is arranged across the side horizontal piece 2, the rear vertical piece 1 and the lower horizontal piece 3. Other points are Same as in one example.

[0023]   [Third example]   In the fastener of this example, each elongated ridge 6 is composed of an upper horizontal piece 2 and a rear vertical piece 1. The bent portion is crossed at a right angle, and is arranged across the upper horizontal piece 2 and the rear vertical piece 1. So The other points are the same as in the first example.

[0024]   [Modification]   1) In the above embodiment, the number of elongated ridges 6 is two, but one or Make three.

[0025]   2) In the above-described embodiment, the elongated ridges 6 have bent portions on their protruding sides. It is placed on the convex side of the and the outer side of the fastener, but the protruding side is the concave side of each bent part. , Place on the inside of the fastener.

[Brief description of drawings]

FIG. 1 is a perspective view of a fastener according to a first example of an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG.

FIG. 4 is a cross-sectional view of the fastener of the second example of the embodiment, showing the same cross section as in FIG. 2;

FIG. 5 is a perspective view of a conventional fastener.

FIG. 6 is a perspective view of a box to which the fastener is attached.

FIG. 7 is an enlarged vertical cross-sectional view of the opening edge of the upper surface of the box to which the fastener is attached.

FIG. 8 is a view showing a state in which the fastener is being attached or removed, and FIG.
The expanded longitudinal cross-sectional view of the same part as in.

[Explanation of symbols]

1 Rear vertical piece 2 Upper horizontal piece 3 lower horizontal pieces 4 Front upper vertical piece 5 Front lower vertical piece 6 elongated ridges 11 box body 12 lid

Claims (4)

[Scope of utility model registration request] 1. A fastener for fixing a lid, which covers an upper opening of a box body, to the box body, wherein an elastic steel plate is bent, and an upper horizontal piece and a lower piece are provided at upper and lower ends of a rear vertical piece, respectively. The side piece is connected to the front side to form a shape in which the front upper vertical piece is connected to the lower side of the front end of the upper horizontal piece, and an opening is formed between the lower end of the front upper vertical piece and the front end of the lower horizontal piece. The lower part of the shape in which the upper part of the shape in which the front upper vertical piece is connected to the lower side of the horizontal piece can be engaged with the upper part of the peripheral part of the lid, and the lower horizontal piece is connected to the lower end of the rear vertical piece. Is a fastener made of a steel plate configured to be able to engage with the outside of the opening edge of the top surface of the box body, and to open and restore the opening at the time of attachment / detachment. Forming an elongated ridge with a concave surface side, and crossing the bent portion of the upper horizontal piece and the rear vertical piece, the upper horizontal piece and the rear vertical piece are formed. Fasteners, characterized in that arranged over it. 2. The elongated ridge portion crosses the bent portion between the upper horizontal piece and the rear vertical piece and the bent portion between the rear vertical piece and the lower horizontal piece, and the upper horizontal piece and the rear side. The fastener according to claim 1, wherein the fastener is arranged across the vertical piece and the lower horizontal piece. 3. The elongated ridge portion includes a bent portion between the front upper vertical piece and the upper horizontal piece, a bent portion between the upper horizontal piece and the rear vertical piece, and a bent portion between the rear vertical piece and the lower horizontal piece. The fastener according to claim 1, wherein the fastener is arranged across the bent portion and across the front upper vertical piece, the upper horizontal piece, the rear vertical piece, and the lower horizontal piece. 4. The fastener according to claim 1, 2 or 3, wherein the elongated ridge portion is arranged such that its protruding side is on the convex surface side of the bent portion.