JP2008078270A - Housing box of measuring instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a housing box of a measuring instrument etc, where an engagement between a box main body and a lid is never released even if an external force or a solar heat is applied to the side walls of the box main body. <P>SOLUTION: The housing box is composed of a box main body A, which is fixed to a laid power supply pole (fixed body) P, and a lid D joined to the box main body A by hinges to stop up the opening 1 of the box main body A. An engaged part 15 and an engaging pawl (engaging part) 24, which are engaged with each other to keep the stoppage of the opening 1 of the box main body A with the lid D, are provided to the box main body A and the lid D respectively. The housing box has such a configuration that a deformation preventive board 26, which is used for preventing the box main body from being deformed bearing against the box main body A or the liD D so as to prevent the above engagement from being released when the second side wall (side wall) 4 of the box main body A equipped with the engaged part 15 is warped inward and deformed, is provided at least to the box main body A or lid D. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an instrument storage box comprising a box main body fixed to an object to be fixed and a lid body hinged to the box main body and closing the opening.

  For example, in order to draw a power supply cable into a house under construction or a construction site, as shown in FIG. 1, a built-in power pole P is erected on the site, and power is fed into the hollow pole P. A box containing a measuring instrument such as a wattmeter is attached to the pole P through a pole band through the cable.

As a conventional storage box, the one disclosed in Patent Document 1 is known. This storage box has a box main body fixed to an object to be fixed and a hinge to the box main body to close the opening of the box main body. The engaging projection provided on the lid engages with a notch-shaped projection formed on the outside of the opening of the box body, and the box body of the lid body It is the structure which maintains obstruction | occlusion of opening. For this reason, when an external force is applied, for example, when a ball (ball) hits the side wall of the box main body where the engaged portion is formed, the opening end of the side wall of the box main body is bent inward and the engagement is released. As a result, there was a problem that the lid body opened. Moreover, since the above-mentioned accommodation box is exposed and arrange | positioned outdoors, the said engagement may be cancelled | released because the side wall of a box main body is bent and deform | transformed inward by solar heat.
JP 2004-69632 A

  An object of the present invention is to provide an instrument storage box in which the engagement between the box body and the lid is not released even when an external force is applied to the side wall of the box body or solar heat is applied.

  The invention of claim 1 for solving the above problem comprises a box main body fixed to an object to be fixed and a lid body hinged to the box main body to close an opening of the box main body. The main body and the cover body are instrument storage boxes each provided with an engaged part and an engagement part for engaging with each other and maintaining the closure of the opening of the box main body by the cover body, At least one of the box main body and the lid body has a box main body or a lid to prevent the engagement from being released when the side wall of the box main body having the engaged portion is bent inward and deformed. It is characterized by having a deformation preventing part that abuts on the body and prevents the deformation of the side wall of the box body.

  According to the first aspect of the present invention, since at least one of the box main body and the lid body is provided with the deformation preventing portion that contacts the box main body or the lid body and prevents the deformation of the side wall of the box main body, The side wall of the box body is prevented from being bent and deformed in a state in which the engagement portion of the body and the engaged portion of the box body are engaged and the opening of the box body is closed by the lid. Accordingly, the engagement state between the engagement portion of the lid and the engaged portion of the box body is prevented, and an external force acts on the side wall of the box body or the lid body, or the box body is deformed by solar heat. It is possible to reliably prevent the engagement state from being released by bending the side wall of the frame by a simple configuration in which a deformation preventing portion is provided on at least one of the box body and the lid.

  The invention according to claim 2 is the invention according to claim 1, wherein the deformation preventing portion is formed so as to protrude from the lid toward the inside of the box body, and the opening of the box body is closed by the lid. And it is the structure contact | abutted to the inner surface of the side wall in which the said to-be-engaged part was formed, It is characterized by the above-mentioned.

  According to the invention of claim 2, the lid is hinged with respect to the box body, and the opening of the box body is closed by the lid, so that the deformation preventing portion formed on the lid is inside the box body. Since the lid is closed and abuts against the inner side surface of the side wall, the lid is closed and the engaged portion of the box body engages with the engaging portion of the lid, and at the same time, the side wall of the box body is bent. Deformation is prevented. Therefore, the release of the engagement can be prevented more reliably.

  According to a third aspect of the present invention, in the second aspect of the present invention, the number of the engaged portions is one, and is formed at a substantially central portion in the longitudinal direction of the side wall of the box body. It is characterized by being formed at a position shifted from the engaging portion.

  According to the invention of claim 3, when the lid body is hinge-rotated with respect to the box body and the engaging portion of the lid body is engaged with the engaged portion of the box body, The side wall is slightly bent inward and then restored to its original shape. Therefore, when the deformation preventing portion is formed so as to be shifted with respect to one engaged portion formed in the substantially central portion in the longitudinal direction of the side wall of the box body, the engaged portion and the engaging portion are completely engaged. Immediately before the mating, the inward bending deformation of the side wall of the box body is allowed, and the engagement is performed smoothly.

  According to a fourth aspect of the present invention, in the second aspect of the present invention, the deformation preventing portion is composed of a pair arranged so as to sandwich the engaged portion.

  According to the invention of claim 4, by providing the pair of deformation preventing portions, the engagement is smoothly performed immediately before the engaged portion and the engaging portion provided on the box body and the lid. After the engagement, the engagement can be more reliably prevented from being released.

  According to a fifth aspect of the present invention, in the invention according to any one of the second to fourth aspects, the deformation preventing portion is formed by bending the front end side away from the inner side surface of the side wall of the box body. It is a feature.

  According to the invention of claim 5, when the lid is hinge-rotated with respect to the box body and the opening of the box body is closed by the lid, the deformation preventing portion formed on the lid has the tip side thereof Without getting caught in the side wall of the box body, it smoothly enters the box body and abuts on the inner surface of the side wall.

  The storage box for the instruments according to the present invention includes a deformation prevention unit that is in contact with the box body or the lid body and prevents the side wall of the box body from being bent and deformed on at least one of the box body and the lid body. The side wall of the box body or the lid body is prevented from being bent and deformed in a state where the engagement portion of the body is engaged with the engaged portion of the box body and the closure of the opening of the box body by the lid body is maintained. Therefore, the engagement state between the engagement portion of the lid body and the engaged portion of the box body is prevented, and an external force acts on the side wall of the box body or the lid body, or the deformation due to solar heat causes When the side wall is bent inward, the engagement state can be reliably prevented from being released with a simple configuration.

  Hereinafter, the present invention will be described in more detail with reference to a plurality of best embodiments.

First, with reference to FIGS. 1-11, described accommodating box B ₁ of Example 1. FIG. 1 is a perspective view of a state in which the storage box B ₁ is attached to the installation power pole P by the pole band E. FIG. 2 is a storage box B in which the opening of the box body A is closed by the lid D. is a perspective view of _1, 3 is a front view of the same state, Fig 4 is a perspective view of a state in which the opening is opened the box body a, FIG. 5 is a front view of the same state 6 is a cross-sectional view taken along line XX of FIG. 3, FIG. 7 is a partially enlarged view of FIG. 6, and FIGS. FIG. 11 is a cross-sectional view taken along line YY in FIG. 3 and FIG. 11 is a cross-sectional view taken along line ZZ in FIG. Since the lid D constituting the storage box B ₁ of this embodiment is formed of a transparent resin, 2 and 3, also member behind the lid D is shown by a thin solid line.

As shown in FIG. 2 to FIG. 5, the storage box B ₁ includes a box main body A for storing instruments such as a power meter, and a hinge connected to the box main body A so as to be rotatable. It comprises a lid D that closes the opening 1 of the box body A. The box body A is formed of a resin and has a rectangular parallelepiped box shape, and includes a bottom wall portion 2 and first to fourth side wall portions 3 to 6. The first and second side wall portions 3 and 4 are vertically arranged opposite to each other in the use state, and the third and fourth side wall portions 5 and 6 are horizontally arranged to face each other in the use state. . In addition, a roof portion 7 having a hollow structure that is wider than the width of the box body A and that protrudes forward from the opening 1 of the box body A is integrally formed above the third side wall 5. The box body A is covered from above. The roof portion 7 of the hollow structure has an open rear surface, and when the opening 1 of the box body A is closed with the lid D between the outer surface of the third side wall 5, the covering flange of the lid D An interference avoidance space 8 for avoiding interference with the portion 22 is formed.

  Further, as shown in FIGS. 4 and 6 to 11, the first rainproof ridge 11 is entirely formed in the portion facing the opening 1 of each of the first to fourth side walls 3 to 6 of the box body A. It is formed over the circumference, and on the back side of the first rainproof ridge 11 on the outer peripheral surface of each of the first and second side wall portions 3, 4, the first rainproof ridge 11 and a predetermined interval are provided. The second rainproof ridge 12 is integrally formed with a predetermined interval in the front-rear direction, and a drainage groove 13 is formed between the rainproof ridges 11 and 12 along the vertical direction. Yes. A pair of first hinge connecting portions 14 are integrally formed at a predetermined distance along the vertical direction on the outer peripheral surface of the first side wall portion 3 and slightly behind the second rainproof ridge 12. Is formed. Further, the center portion in the height direction of the first rainproof ridge 11 formed on the second side wall portion 4 is omitted by a predetermined length and engaged with the engaging claw 24 of the lid D. It is part 15. An opening 1 of the box body A is formed in a portion slightly behind the second rainproof ridge 12 on the outer peripheral surface of the second side wall portion 4 and slightly below the engaged portion 15. The first connecting plate 16 for connecting to the second connecting plate 25 of the lid D via the cords is integrally formed perpendicular to the first side wall 3 while being closed by the lid D. ing. The first connecting plate 16 is formed with a through hole 16a for passing the strings. Further, the bottom wall portion 2 is slightly inward from the end surface (back side) of each of the first to fourth side wall portions 3 to 6 and is inward of each side wall portion 3 to 6. It is integrally formed. When the box body A is attached to the pole P, a plurality of screw insertion holes 17 are formed in the bottom wall 2 for inserting the screws 42 for fixing the box body A to the band base 41 constituting the pole band E. Has been. A boss portion 18 is formed at a portion where the screw insertion hole 17 is formed on the back surface of the bottom wall portion 2. Further, the first rainproof ridge 11 formed on the first side wall portion 3 has a notch portion 11a for avoiding interference with the two pairs of second hinge connecting portions 23 formed on the lid D. Is formed. The bottom wall 2 is formed with a knockout portion (not shown) for introducing the cable C in the pole P into the box body A. Reference numeral 19 denotes a screw screw hole for fixing instruments such as the wattmeter 32 to the bottom wall portion 2.

  Next, with reference to FIG. 4 thru | or FIG. 11, the cover body D for obstruct | occluding the opening of the box main body A is demonstrated. The lid D is made of a transparent resin, and is formed by integrally forming a cover flange portion 22 that covers the outside of the opening of the box body A at the opening of the lid body 21 having a curved cross section. It is. Planar portions 22a and 22b are respectively formed on the left and right ends of the cover flange portion 22 of the lid D which are arranged in the vertical direction. The upper and lower portions formed on the box body A are formed on one flat portion 22a. Two pairs of second hinge connecting portions 23 disposed at the upper and lower ends of each pair of first hinge connecting portions 14 are integrally formed in a form protruding from the opening of the lid D. An engaging claw 24 that can be engaged with the engaged portion 15 formed on the box main body A protrudes toward the opening side of the lid D on the other plane portion 22b. The engaging claw 24 is arranged at the center in the vertical direction of the lid body D corresponding to the engaged portion 15 formed in the box body A, and the whole covers the inside of the flange portion 22, that is, the lid body D. Is placed inside. That is, the engaged portion 15 is moved outward by cutting out a part of the first rainproof ridge 11 formed on the outer surface of the portion facing the opening 1 of the second side wall portion 4 of the box body A. The engaging claw 24 that is formed to face and engage with the engaged portion 15 is formed to face inward of the cover flange portion 22 of the lid D and covers the opening 1 of the box body A. In the state covered with the body D, the engaging claws 24 are arranged outside the engaged portion 15 and engaged with each other. In addition, a second connecting plate 25 connected to the first connecting plate 16 of the box body A is an extended surface of the opening of the lid D at a portion where the engaging claw 24 is formed on the end surface of the cover flange portion 22. It protrudes outward and is integrally formed so as to be arranged on the top. In a state where the opening of the box body A is closed by the lid body D, the first and second connecting plates 16 and 25 are in contact with each other in the substantially lower half of the second connecting plate 25, and the second connecting plate 25. When the lid D is opened by rotating the hinge, the substantially upper half of the is a non-contact portion that functions as a handle. A through hole 25 a is provided in a portion of the second connecting plate 25 corresponding to the through hole 16 a of the first connecting plate 16.

  Moreover, it is the side (the plane part 22b side) where the engaging claws 24 are formed on the curved inner peripheral surface of the lid body 21 and the center part of the lid body D in the vertical direction (height direction). At a substantially central portion between the position where the engaging claw 24 is formed and the upper end of the lid body D, a deformation preventing plate portion 26 whose outer end surface 26a has an arch shape covers the inner surface of the flat surface portion 22b and enters the flange portion 22. It is formed in an integrated manner so as to be perpendicular to the inner circumferential surface of the curve. The deformation preventing plate portion 26 is in contact with the inner side surface of the second side wall portion 4 in a state where the opening 1 of the box body A is closed by the lid D, and the second side wall portion 4 bends beyond an allowable limit. It functions to prevent deformation. When the lid D is hinge-rotated with respect to the box main body A and the opening 1 of the box main body A is closed by the lid D, the distal end portion of the deformation preventing plate portion 26 is the second end of the box main body A. The outer end surface 26a is curved so that it can enter the box body A without interfering with the two side wall portions 4. The deformation preventing plate part 26 maintains the non-contact with the second side wall part 4 of the box body A at the beginning of the entry, and the outer end face 26a abuts against the inner side surface of the second side wall part 4 in the complete entry state. It has a shape.

  Then, by forming the deformation preventing plate portion 26 at the above position, the “bending deformation span” of the second side wall portion 4 becomes shorter than when the deformation preventing plate portion 26 is not formed. Thereby, when the external force of the same magnitude | size acts on the 2nd side wall part 4, the 2nd side wall in which the to-be-engaged part 15 of the box main body A engaged with the engaging claw 24 of the cover body D was formed. The “bending deformation amount” of the portion 4 is smaller than when the deformation preventing plate portion 26 is not formed. This is because when the lid D is hinge-rotated with respect to the box body A and the engaging claw 24 of the lid D engages with the engaged portion 15 of the box body A, 2 The side wall portion 4 bends and deforms by a necessary amount during the engagement between the engaging claw 24 and the engaged portion 15, but after the engagement, even if it is deformed by a deflection amount during the engagement, the engagement Will not be released. In other words, the engagement is smoothly performed by adjusting the formation position in the height direction of the deformation prevention plate portion 26 formed on the lid body D or the number of formations, and the engagement is released after the engagement. Two conflicting conditions of not being performed can be satisfied simultaneously. Therefore, in order to further release the engagement, the deformation prevention plate portion 26 formed on the lid D is disposed relatively close to the engagement claw 24 or a pair of deformations with the engagement claw 24 interposed therebetween. The prevention plate part 26 can also be formed on the lid D. In FIG. 11, reference numeral 27 denotes a pole band insertion hole formed on the back surface side of the bottom wall portion 2 of the box body A.

And each 2nd hinge connection part 23 of the cover body D is made to contact | abut each at the upper and lower ends of a pair of upper and lower 1st hinge connection parts 14 formed in the outer surface of the 1st side wall part 3 of the box main body A, respectively. When the pair of second hinge connecting portions 23 arranged at the upper and lower ends of the first hinge connecting portion 14 are connected by the hinge pins 31, the lid D is rotated with respect to the box body A via the pair of upper and lower hinge pins 31. It is hinged as possible (see FIGS. 4 and 5). Next, the box body A of the storage box B ₁ is attached to the pole P via the pole band E. That is, the bottom wall portion 2 of the box body A is fixed to the band base 41 of the pole band E via a plurality of screws 42, and the band body 43 is wound around the pole P and integrally connected thereto, so that FIG. As shown, a receiving box B ₁ is attached to the pole P. An instrument such as a wattmeter 32 is accommodated in the box body A attached to the pole P, and the base plate 32a such as the wattmeter 32 is attached to the bottom wall using the screw holes 19 formed in the bottom wall portion 2. Fix to part 2.

  When the lid D is pivoted with respect to the box body A in order to close the opening 1 of the box body A with the lid D, the engaging claws 24 of the lid D are hardly deformed. 9, when the claw portion 24 a inside the front end of the engaging claw 24 of the lid D abuts on the engaged portion 15 of the box body A, the second side wall portion 4 is bent and deformed inward. Then, when the claw portion 24a passes through the engaged portion 15, the second side wall portion 4 is restored to the original shape, and the engaged portion 15 and the lid of the box body A as shown in FIG. The engaging claw 24 of D engages. In the engaged state, the flat surface portion 22 b of the cover flange portion 22 of the lid D is in contact with the first rainproof ridge 11 of the box body A. At substantially the same time as the engaging action, the deformation prevention plate portion 26 of the lid D enters the inside of the second side wall portion 4 of the box body A and is arranged inside the second side wall portion 4 (see FIG. 6). As a result, the “bending deformation span” of the second side wall portion 4 is shortened, and even when an external force or the like acts on the second side wall portion 4 to be bent and deformed inward, the amount of bending deformation is reduced. The engagement between the engaged portion 15 of the box body A and the engagement claw 24 of the lid D is not released.

  Here, the outer end face 26a of the deformation prevention plate part 26 is bent inward, and at the beginning of the entry, the second side wall part 4 of the box body A is kept in non-contact, The base end portion of the deformation preventing plate portion 26 (the base end portion entering the cover flange portion 22) is in contact with the inside of the opening side end surface of the second side wall portion 4. Therefore, at the moment when the claw portion 24a of the engaging claw 24 of the lid body D comes into contact with the engaged portion 15 of the box main body A and the second side wall portion 4 of the box main body A is bent and deformed inward, the lid The deformation prevention plate portion 26 of the body D is not in contact with the second side wall portion 4 of the box body A, and the portion of the deformation prevention plate portion 26 in the second side wall portion 4 is slightly bent inward and deformed. Since it is in a possible state, the “bending deformation span” of the second side wall portion 4 during the engagement of the engaged portion 15 and the engaging claw 24 is substantially the entire length of the second side wall portion 4. On the other hand, after the engagement, the “deflection deformation span” of the second side wall portion 4 is shortened by the action of the deformation preventing plate portion 26 that is disposed in the box main body A, and the second side wall portion 4. The amount of bending deformation caused by external force acting on the surface is reduced, and the release of the engagement is prevented. It is. In the present embodiment, the engaging claws 24 formed on the lid body D and the respective distal end portions of the deformation preventing plate portion 26 are arranged at substantially the same position along the direction perpendicular to the opening surface of the lid body D. When the distal end position of the engaging claw 24 is arranged closer to the opening surface of the lid D than the distal end position of the deformation preventing plate part 26, the second side wall in the middle of engagement between the engaged portion 15 and the engaging claw 24 is provided. Since the “bending deformation span” of the portion 4 approaches the length of the second side wall portion 4, the engagement is smooth, and the effect of preventing the disengagement after the engagement is enhanced.

The lid D constituting the storage box B ₁ of this embodiment, since it is formed of a transparent resin, without opening the lid D against the box main body A, housed in the box body A power Although there is an advantage that it is possible to know the display value of instruments such as a total of 32, the presence / absence of energization, etc., if it is necessary to directly touch the device due to some necessity, the second connection of the lid D When the plate 25 is firmly pulled toward the front side, the second side wall portion 4 of the box body A is bent inward and deformed, and the engagement between the engaged portion 15 and the engaging claw 24 is released, and the lid Body D can be opened. At this time, the deformation preventing plate portion 26 formed on the lid body D is hooked on the second side wall portion 4 of the box body A because the outer end surface 26a is bent in an arch shape inward. The lid D can be opened smoothly.

Next, another embodiment of the present invention will be described with reference to FIGS. FIG. 12 is a perspective view of another storage box B ₂ according to the present invention in a state in which the lid D is opened, and FIG. 13 is a diagram of an engagement portion between the box body A and the lid D in the storage box B ₂ . It is an expanded sectional view. The deformation preventing portion of the second embodiment is integrally formed on the outside of the side wall of the box body A, and the opening 1 of the box body A is closed on the outer surface of the opening end of the lid D with the lid D closed. It is the structure which contacts. That is, the engaged protrusion 20 is integrally formed on the free end portion of the first connecting plate 16 of the box body D toward the front side (opening 1 side), and as shown in FIG. In a state in which the opening 1 is closed by the lid body D, the second connecting plate 25 of the lid body D is configured to be disposed inside the engaged protrusion 20. Therefore, even if an external force is applied to the second side wall portion 4 of the box body A, the engaged protrusion 20 formed integrally with the first connecting plate 16 contacts the side end surface 25b of the second connecting plate 25. Further, the inward bending deformation of the second side wall portion 4 is prevented, and the disengagement between the engaged portion 15 of the box body A and the engaging claw 24 of the lid D is prevented. As described above, the engaged protrusion 20 of the box main body A constituting the deformation preventing portion is formed with the engaging claws 24 of the lid D in a state where the opening 1 of the box main body A is closed by the lid D. It is the structure contact | abutted to the outer side surface of the side wall.

  As for the engagement structure between the box body and the lid, in each of the above embodiments, the engaged portion of the box body and the engagement portion of the lid are formed by the side wall portion of the box body flexing and deforming inward. In the engagement structure in which the side wall portion of the lid body is bent and deformed inward and the engagement is released, the deformation prevention portion prevents the lid body from being deformed. Provided in the part. In the first embodiment, the deformation preventing portion for preventing the deformation of the side wall of the box main body is provided on the lid body side, and in the second embodiment, the deformation preventing portion is provided on the box main body side.

  In each of the above embodiments, the entire engaging claws formed on the lid are arranged inside the lid, and in the engaged state between the engaged portion of the box body and the engaging portion of the lid, The engaging part is protected by the lid, and there is an advantage that the external force does not act on the engaging part and the engagement is not easily released. However, the present invention can also be applied to a storage box having a configuration in which the engaging portion is disposed outside. For example, the storage box has a quadrangular shape in plan view, and an engagement portion is formed on the side wall portion facing the hinge connection portion between the box body and the lid body. The prevention portion acts so that the side wall portion of the box body or the lid body is not bent outwardly and deformed.

  Further, in each of the above embodiments, the engaging claw 24 formed on the lid D is higher in rigidity than the second side wall portion 4 of the box body A and does not elastically deform. The present invention can also be applied to a storage box having a configuration in which the joint claw is elastically deformed.

FIG. 6 is a perspective view of a state in which a storage box B ₁ is attached to an erection power pole P by a pole band E. FIG. 6 is a perspective view of the accommodation box B ₁ in a state where an opening of the box body A is closed by a lid D. It is a front view of the same state. It is a perspective view in the state where the opening of box body A was opened. It is a front view of the same state. It is the XX sectional view taken on the line of FIG. It is the elements on larger scale of FIG. FIG. 4 is a cross-sectional view taken along the line YY in FIG. FIG. 4 is a cross-sectional view taken along line YY of FIG. 3 in a state where the second side wall portion 4 of the box body A is bent and deformed by the engaging claws 24 of the lid D. FIG. 4 is a cross-sectional view taken along the line YY of FIG. 3 in a state where the engaging claw 24 of the lid body D and the engaged portion 15 of the box body A are engaged. FIG. 4 is a sectional view taken along line ZZ in FIG. 3. It is a perspective view of another storage box B ₂ according to the present invention in an open state the lid D. It is an enlarged sectional view of the engagement portion of the box body A and the cover D in accommodating box B _2.

Explanation of symbols

A: Box body B ₁ , B ₂ : Storage box
D: Lid
P: Pole for installation power supply (fixed object)
4: Second side wall (side wall)
15: engaged portion
20: Engagement protrusion (engaged part)
24: engagement claw (engagement part)
26: Deformation prevention plate part (deformation prevention part)
26a: outer end face of the deformation preventing plate
31: Hinge pin
32: Wattmeter (instruments)

Claims (5)

A box body fixed to an object to be fixed, and a lid body hinged to the box body to close the opening of the box body,
The box main body and the lid body are instrument storage boxes each having an engaged portion and an engaging portion for engaging with each other and maintaining the closure of the opening of the box main body by the lid body. ,
At least one of the box main body and the lid body is provided with a box main body or a box main body to prevent the engagement from being released when a side wall of the box main body provided with the engaged portion is bent and deformed inward. An instrument storage box comprising a deformation preventing portion that abuts against a lid and prevents a deformation of a side wall of the box body.   The deformation preventing portion is formed to protrude from the lid toward the inside of the box main body, and the opening of the box main body is closed by the lid, on the inner surface of the side wall where the engaged portion is formed. The instrument storage box according to claim 1, wherein the storage box is configured to abut.   One engaged portion is formed at a substantially central portion in the longitudinal direction of the side wall of the box body, and the deformation preventing portion is formed at a position shifted from the engaged portion. The instrument storage box according to claim 2, wherein the instrument is a storage box.   The instrument storage box according to claim 2, wherein the deformation preventing portion is configured as a pair arranged so as to sandwich the engaged portion.   5. The instrument storage box according to claim 2, wherein the deformation preventing portion is formed by bending a tip side thereof in a direction away from an inner surface of a side wall of the box body.

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