CN112172088A

CN112172088A - Tool box and manufacturing method thereof

Info

Publication number: CN112172088A
Application number: CN202011113757.3A
Authority: CN
Inventors: 王猛
Original assignee: Saame Tools Shanghai Import & Export Co ltd
Current assignee: Saame Tools Shanghai Import & Export Co ltd
Priority date: 2020-10-17
Filing date: 2020-10-17
Publication date: 2021-01-05
Also published as: WO2022078022A1; DE112021004906T5

Abstract

The invention discloses a tool box and a mould thereof, wherein the tool box comprises an integrally formed cover body and an injection molding part which is integrally formed with the cover body, the cover body is also provided with an embedded groove for accommodating the injection molding part, the mould comprises a male mould part and a female mould part which are formed at intervals for forming the cover body and a parison die head for providing a tubular plastic parison for forming the cover body, the tubular plastic parison is formed between the male mould part and the female mould part and is clamped by the male mould part and the female mould part, a first fixing part embedded into the injection molding part is arranged on the periphery of the position of the male mould part, which corresponds to one of an upper cover and a lower cover, the injection molding part is fixed on the first fixing part so as to occupy the embedded groove for forming the cover body, and the injection molding part is wrapped by the. Through the setting of first fixed part in the convex mould part, be fixed in the injection molding first fixed part, in order to let the injection molding realizes the occupy-place, and the shaping embedded groove is in the same place injection molding and lid combination well on the lid.

Description

Tool box and manufacturing method thereof

Technical Field

The invention relates to a tool box and a manufacturing method thereof, in particular to a tool box and a manufacturing method thereof, wherein a cover body of the tool box and an injection molding piece can be better molded together.

Background

Taiwan patent No. TWI348961 discloses a tool box structure, which comprises a hollow box body, a soft covering member and a frame member, wherein the frame member is formed on the box body by tight fitting, clamping or screwing, and the like.

Therefore, there is a need to provide a new tool box and a manufacturing method thereof to overcome the above-mentioned drawbacks.

Disclosure of Invention

The invention aims to provide a tool box and a manufacturing method thereof, wherein a cover body of the tool box can be better molded with an injection molding piece.

The purpose of the invention is realized by the following technical scheme one: a tool box comprises a hollow plastic cover body made of a hollow blowing plastic mold and an injection molding piece integrally formed with the cover body, wherein a containing part for containing tools is formed on the inner side of the cover body, the cover body comprises an upper cover, a lower cover and a connecting part, the upper cover and the lower cover are integrally formed, the lower cover and the upper cover form the containing part, the connecting part is integrally connected with the upper cover and the lower cover, the cover body is also provided with an embedded groove for containing the injection molding piece, the mold comprises a male mold part and a female mold part which are oppositely arranged at a separation interval for forming the cover body, and a parison mold head which is hung above the midpoint of the connecting line of the male mold part and the female mold part and is provided with a tubular plastic parison for forming the cover body, the tubular plastic parison is formed between the male mold part and the female mold part and is clamped by the male mold part and the female mold part together to form the tool, the injection molding part is fixed on the first fixing part to occupy the embedding groove of the cover body, and the injection molding part is wrapped by the cover body.

Further, the material of the tubular plastic parison is different from the material of the injection molded part so that the degree of expansion and contraction of the tubular plastic parison is greater than the degree of expansion and contraction of the injection molded part at the same temperature so that the injection molded part is held in the embedded groove and is wrapped by the tubular plastic parison.

Further, the injection molding is fixed to the first fixing portion by an external force.

Further, the injection-molded part is vacuum-adsorbed to the first fixing portion.

Further, the injection molding piece including the shaping in the frame portion that the position set up all around of upper cover, the upper cover includes first diapire and encloses and establishes first diapire first perisporium that forms all around, the embedded groove is located for the ring the confession of first perisporium the second embedded groove of frame portion block holding, first fixed part with the second embedded groove is located the relative both sides of frame portion set up.

Further, the die part corresponds be provided with a second fixed part in the outside of one of the two of upper cover and lower cover, the injection molding still including being fixed in the second fixed part forms with the occupy-place the sign portion of the first embedded groove of lid, the second fixed part with first embedded groove is located the relative both sides setting of sign portion.

Further, the injection-molded part forms at least one bend.

Further, the first peripheral wall further includes a pair of first long walls extending in the longitudinal direction and a pair of first wide walls extending in the transverse direction perpendicular to the longitudinal direction and connecting the pair of first long walls, the pair of first wide walls includes one of the first wide walls connected to the lower cover via a connecting portion and the other first wide wall located on a side away from the lower cover, the first wide wall located on a side away from the lower cover is provided with a first recess portion located at a middle position and a pair of first grooves located on both lateral sides of the pair of first recess portions, the frame portion includes a third recess portion located corresponding to the first recess portion and a third groove located corresponding to the first groove, and the turn portion is formed in the third recess portion and the third groove.

Furthermore, the second embedded groove is arranged corresponding to the contour of the periphery of the first peripheral wall.

Further, the lower cover comprises a second bottom wall and a second circumferential wall formed around the second bottom wall, the second circumferential wall comprises a pair of second long walls arranged along the vertical direction and a pair of second wide walls connected with the pair of second long walls and extending along the transverse direction, a second concave portion arranged corresponding to the first concave portion and second grooves arranged on two transverse sides of the second concave portion and corresponding to the first grooves are arranged on the second wide wall, a convex block and a clamping block are respectively arranged in the first groove and the second groove, and the tool box is further provided with a clamping lip arranged on the convex block and the clamping block to open and close the cover body.

The purpose of the invention is realized by the following technical scheme II: a method of manufacturing a tool kit comprising the steps of:

the mould comprises a male mould part and a female mould part which are oppositely arranged at a separation interval for forming the tool box, and a parison die head which is arranged above the midpoint of the connecting line of the male mould part and the female mould part in a hanging manner, wherein the parison die head is provided with a tubular plastic parison for forming the cover body;

secondly, providing an injection molding piece, and fixing the injection molding piece on the first fixing part and the second fixing part;

thirdly, opening the parison die head to enable the parison die head to release the tubular plastic parison to a position between the male die part and the female die part, and after the tubular plastic parison is extruded to a certain length, closing the dies of the male die part and the female die part;

fourthly, after the mold is closed, the tubular plastic parison is slowly cooled and solidified in the mold, after the tubular plastic parison is solidified to a certain degree, air is blown into the air blowing holes on the male mold part under the control of an electromagnetic valve, and different sides of the tubular plastic parison are respectively extruded to two opposite sides of the female mold part and the male mold part by air pressure;

fifthly, the tubular plastic parison is completely solidified and shaped in the mould under the action of gas pressure and mould cooling, and the tubular plastic parison tightly wraps the injection molding part under the action of high-pressure gas;

sixthly, after the product is solidified and formed, opening the die, ejecting out the ejector pin, and manually taking out the product; primarily trimming redundant waste; finely trimming the product, and removing redundant flash; and finally burning the product with the trimmed flash by using a fire gun to passivate the flash so as to prevent the burr on the flash from hurting a user.

Further, the injection molding piece comprises a frame portion fixedly located on the first fixing portion and a mark portion fixedly located on the second fixing portion, and the frame portion and the mark portion are located on two opposite sides of the tubular plastic parison.

Further, in the second step of manufacturing the tool box, the frame portion and the sign portion are fixed to the first fixing portion and the second fixing portion, respectively, by an external force.

Further, during the second step of manufacturing the tool box, a frame portion and the index portion are vacuum-sucked to the first fixing portion and the second fixing portion, respectively.

According to the tool box, the male die part and the female die part of the die are arranged oppositely, and meanwhile, the injection molding part is fixed on the male die part formed in the cover body, so that the injection molding part occupies space, the embedded groove is formed in the cover body, the injection molding part and the cover body can be well combined together when the cover body is formed, additional devices are not needed, and the injection molding part and the cover body can be well fixed under the trend of miniaturization requirements.

Drawings

Fig. 1 is a perspective view of the tool box of the present invention when closed.

Fig. 2 is a perspective view of the tool box of the present invention when opened.

Fig. 3 is an exploded perspective view of the tool box of the present invention.

Fig. 4 is another exploded perspective view of the tool box of the present invention.

Fig. 5 is another exploded perspective view of the tool box of the present invention.

Fig. 6 is a perspective view of a mold of the tool box of the present invention.

Fig. 7 is a front view of the ejector in the mold of the present invention.

Fig. 8 is a front view of the male part of the ejector device of the present invention.

Fig. 9 is a front view of the female mold portion of the ejector of the present invention.

Detailed Description

In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or assembly must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Hereinafter, the tool box 100 and the mold 200 thereof according to the present invention will be described with reference to fig. 1 to 9.

Referring to fig. 1 to 9, the tool box 100 includes a cover and an injection molding member 3 integrally formed with the cover. The lid is the cavity form plastic that cavity plastic forming die 200 made of blowing, the lid inboard is formed with the portion 10 of acceping of the instrument of a plurality of different shape sizes, the lid still is equipped with accepts the embedded groove of injection molding 3, injection molding 3 imbeds in the lump when the lid shaping the position on the mould 200 that the embedded groove corresponds, the lid with the material of injection molding 3 is different so that under the same temperature the degree of lid expend with heat and contract with cold is greater than the degree of 3 expend with heat and contract with cold of injection molding 3 thereby injection molding 3 fix in the embedded groove.

Referring to fig. 1 to 5, the cover body includes an upper cover 1, a lower cover 2 forming the receiving portion 10 with the upper cover 1, and a connecting portion 4 connecting the upper cover 1 and the lower cover 2. The upper cover 1 includes a first bottom wall 11 and a first peripheral wall 12 surrounding the first bottom wall 11 to form a plurality of receiving portions 10. The outer surface of the first bottom wall 11 is provided with a first insertion groove 111, and the first insertion groove 111 is located in the middle of the outer surface of the first bottom wall 11. The first peripheral wall 12 includes a pair of first wide walls 121 extending in the transverse direction and a pair of first long walls 122 extending in the longitudinal direction, which connect the pair of first wide walls 121. The first wide wall 121 and the lower cover 2 are connected together via the connecting portion 4. The first wide wall 121 of the other is provided with a first recess 14, and a first handle portion 15 located at the first recess 14 and extending in the longitudinal direction. The first handle portion 15 connects the openings of the first recess 14 in the lateral direction. The first wide wall 121 located at the outer side is further provided with first grooves 13 formed at two sides of the first concave portion 14 in the transverse direction in a concave manner, and a convex block 131 is arranged in each first groove 13. The depth of the first groove 13 in the longitudinal direction is smaller than the depth of the first recess 14 in the longitudinal direction.

Referring to fig. 1 to 5, the lower cover 2 includes a second bottom wall 21 and a second peripheral wall 22 surrounding the second bottom wall 21 to form a plurality of receiving portions 10. The second peripheral wall 22 is correspondingly provided with a second insertion groove 211 extending along the outer contour of the second peripheral wall 22. The second peripheral wall 22 includes a pair of second wide walls 221 provided separately and extending in the transverse direction and a pair of second long walls 222 connecting the pair of second wide walls 221 and extending in the longitudinal direction. The second wide wall 221 and the first wide wall 121 of one of them are connected together via the connecting portion 4. The second wide wall 221 of the other is provided with a second recess 24, and a second handle portion 25 located in the second recess 24 and extending in the longitudinal direction. The second handle portion 25 connects the openings of the second recesses 24 in the lateral direction. The second wide wall 221 located at the outer side is further provided with a pair of second grooves 23 formed at two sides of the second concave portion 24 in the transverse direction in a concave manner, and a fastening portion 231 is arranged in each second groove 23. The depth of the second groove 23 in the longitudinal direction is smaller than the depth of the second recess 24 in the longitudinal direction. Wherein the first recess 14 is disposed corresponding to the second recess 24, and the first groove 13 is disposed corresponding to the second groove 23. The tool box 100 further includes a pair of fastening lips 5 fastened to the protrusion 131 and the fastening portion 231.

In the present embodiment, the injection-molded part 3 is fixed and pressed into the position corresponding to the fitting groove by an external force during the fixing molding, and in another embodiment, the injection-molded part is vacuum-sucked into the position corresponding to the fitting groove during the molding of the lid body. Therefore, the injection molding part is fixed at the position corresponding to the embedded groove (the position of the male die part and the position of the female die part), and the cover body expands with heat and contracts with cold under the action of high temperature to wrap the injection molding part, so that the injection molding part and the cover body are well fixed. The cover body is made of a different material from the injection-molded part, and the cover body is made of polyethylene, polyvinyl chloride, polypropylene or polyester.

The injection molding 3 includes a frame portion 31 fitted around one of the upper and lower covers 1 and 2, and a mark portion 32 fitted in the middle of the surface of one of the upper and lower covers 1 and 2. The positions of the frame portion 31 and the mark portion 32 are not necessarily related, because the frame portion 31 is embedded along the periphery of the cover, and the mark portion 32 is located at the middle position of the outer surface of the cover. In the present embodiment, the frame portion 31 is provided around the lower cover 2, and the mark portion 32 is located at a middle position of the outer surface of the upper cover 1 for marking. The frame part 31 and the mark part 32 respectively form at least one turn, and in the molding process, the material of the cover body can better wrap the frame part 31 and the mark part 32, so that the cover body is better combined with the injection molding part 3. In the present embodiment, the frame portion 31 is provided corresponding to the second peripheral wall 22 and has a pair of third wide walls 311 provided corresponding to the second wide walls 221 and a third long wall 312 provided to connect the pair of third wide walls 311, and the third long wall 312 is provided corresponding to the second long wall 222. The frame portion 31 has a third recess 314 provided in one of the third wide walls 311 corresponding to the second recess 24 and a third groove 313 corresponding to the second groove 23. Here, there is a turn at the third recess 314 and the third groove 313, so that the cover can be better held. The size of the third recess 314 is slightly smaller than that of the second recess 24, and the size of the third groove 313 is slightly smaller than that of the second groove 23.

In the present embodiment, the mark 32 is embedded in the middle of the exposed surface of the upper cover 1 in the form of "KENDO". The character also has the arrangement of the turning part and can be better held by the cover body.

Referring to fig. 6 to 9, the mold 200 includes an electric motor 201 for driving a machine, a cartridge 202 for loading a material for molding the tool box 100, an ejector 205 for molding the tool box 100, a tube 203 for transferring the material into the ejector 205, and a safety door 204 closed in production to prevent danger.

The ejection device 205 has a male portion 2051 and a female portion 2052 spaced apart from one another and a suspended parison die 2057 above the midpoint of the line between the male and

female portions

2051, 2052 for extruding material from a forming tool box. A circulating cooling circuit 2053 is provided on the male and

female mold portions

2051, 2052 for cooling. A thimble 2054 and a blow hole 2055 for ejecting the molded material are provided on the male mold portion 2051. The parison die 2057 has a tubular plastic parison 20571 that forms the lid, the tubular plastic parison 20571 being formed between the male and

female mold portions

2051, 2052 and clamped therebetween to form the kit 100. The male mold part 2051 clamps one side of the tubular plastic parison 20571 to form the inside of the upper cover 1 and the lower cover 2, and the female mold part 2052 clamps the other side of the tubular plastic parison 20571 to form the outside of the upper cover 1 and the lower cover 2. The male mold part 2051 is provided with a first fixing part 2056 embedded in the injection molded part 3 around a position corresponding to one of the upper cover 1 and the lower cover 2, and the female mold part 2052 is provided with a second fixing part 20521 embedded in the injection molded part 3 at an outer position corresponding to one of the upper cover 1 and the lower cover 2. The injection-molded part 3 includes a frame part 31 fixed to the first fixing part 2056 to occupy the second insertion groove 211 forming the cover, and a mark part 32 fixed to the second fixing part 20521 to occupy the first insertion groove 111 forming the cover.

The material of the tubular plastic parison 20571 is different from the material of the injection molded part 3 so that the degree of expansion and contraction of the tubular plastic parison 20571 is greater than the degree of expansion and contraction of the injection molded part 3 at the same temperature so that the injection molded part 3 is held in the embedded groove 111/211 and is wrapped by the tubular plastic parison 20571.

A method of manufacturing the tool box is as follows: in the first step, a hollow blow molding mold is provided, the mold comprises a male mold part 2051 and a female mold part 2052 which are oppositely arranged at a separation interval for molding the tool box, and a parison mold head 2057 which is arranged above the midpoint of the connecting line of the male mold part 2051 and the female mold part 2052 in a hanging manner, the parison mold head 2057 is provided with a tubular plastic parison 20571 for molding the cover body, the male mold part 2051 is provided with a first fixing part 2056 which is arranged around the periphery of the cover body, and the female mold part 2052 is provided with a second fixing part 20521 corresponding to the middle position of the cover body;

secondly, providing an injection molding part 3, wherein the injection molding part 3 comprises a frame part 31 fixedly arranged on the first fixing part 2056 and a mark part 32 fixedly arranged on the second fixing part 20521, the frame part 31 and the mark part 32 are arranged on two opposite sides of the tubular plastic parison 20571, and the injection molding part 3 is arranged in the first fixing part 2056 and the second fixing part 20521 by pressing the injection molding part into a mold by external force to enable the two parts to be tightly matched with each other, and by arranging the injection molding part into the mold by external force and then utilizing vacuum adsorption to enable the two parts to be tightly matched;

thirdly, the parison die head 2057 is opened, so that the tubular plastic parison 20571 is released between the male die part 2051 and the female die part 2052, and when the tubular plastic parison is extruded to a certain length, the male die part 2051 and the female die part 2052 are closed;

fourthly, after the mold is closed, the tubular plastic parison 20571 starts to be slowly cooled and solidified in the mold, after the tubular plastic parison is solidified to a certain degree, the air inlet of the air blowing holes 2055 on the male mold part 2051 is started under the control of the electromagnetic valve, and different sides of the tubular plastic parison 20571 are respectively extruded to two opposite sides of the female mold part 2052 and the male mold part 2051 by air pressure;

fifthly, the tubular plastic parison 20571 is completely solidified and shaped in the mold under the action of gas pressure and mold cooling, and the tubular plastic parison 20571 tightly wraps the injection molding part 3 under the action of high-pressure gas;

Since the male mold part 2051 and the female mold part 2052 are clamped on two opposite sides of the tubular plastic parison 20571, when the tubular plastic parison 20571 is used for forming the tool box 100, the male mold part 2051 forms the inner part of the upper cover 1 and the lower cover 2, and the female mold part 2052 forms the outer part of the upper cover 1 and the lower cover 2. The injection-molded part 3 includes a frame portion 31 fixedly located at the first fixing portion 2056 and an index portion 32 fixedly located at the second fixing portion 20521, and the frame portion 31 and the index portion 32 are located at opposite sides of the tubular plastic parison 20571. Due to the space-occupying design of the frame portion 31 and the mark portion 32, when the upper cover 1 and the lower cover 2 are formed by the tubular plastic parison 20571, the first insertion groove 111 held in the mark portion 32 and the second insertion groove 211 held in the frame portion 31 are reserved.

According to the invention, through the relative arrangement of the male die part 2051 and the female die part 2052 of the die 200, the injection molding part 3 is fixed on the male die part 2051 formed in the cover body, so that the injection molding part 3 occupies space, and the embedded groove is formed in the cover body, so that the injection molding part and the cover body can be well combined together when the cover body is formed, no additional device is needed, and the injection molding part and the cover body can be well fixed under the trend of miniaturization requirement. At the same time, the cover body can better hold the injection-molded part due to the different turns of the injection-molded part (third groove 313, third recess 214, etc.).

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

The above description is only a part of the embodiments of the present invention, and not all embodiments, and any equivalent variations of the technical solutions of the present invention, which are made by those skilled in the art through reading the present specification, are covered by the claims of the present invention.

Claims

1. The utility model provides a tool box, including a cavity form plastic form lid of making by cavity plastic mould of blowing and with lid integrated into one piece's injection molding, the lid inboard is formed with the portion of acceping the instrument, the lid include integrated into one piece's upper cover, with the upper cover forms the lower cover of portion of acceping and integrated connection the upper cover reaches the connecting portion of lower cover, its characterized in that: the cover body is also provided with an embedded groove for accommodating the injection molding piece, the mold comprises a male mold part and a female mold part which are oppositely arranged at a separation interval for forming the cover body, and a parison die head which is arranged above the midpoint position of the connecting line of the male mold part and the female mold part in a hanging way, the parison die head is provided with a tubular plastic parison for forming the cover body, the tubular plastic parison is formed between the male mold part and the female mold part and is clamped by the male mold part and the female mold part together to form the tool box, one side of the tubular plastic parison is clamped by the male mold part to form the inner parts of the upper cover and the lower cover, the other side of the tubular plastic parison is clamped by the female mold part to form the outer parts of the upper cover and the lower cover, and a first fixing part embedded into the injection molding piece is arranged around the position where one of the upper cover and the lower cover is correspondingly formed by the male, the injection molding is fixed in first fixed part forms with the occupy-place the embedded groove of lid just the injection molding quilt the lid parcel.

2. The tool box of claim 1, wherein: the material of the tubular plastic parison is different from that of the injection molded part so that the degree of expansion and contraction of the tubular plastic parison is greater than that of the injection molded part at the same temperature so that the injection molded part is held in the embedded groove and is wrapped by the tubular plastic parison.

3. The tool box of claim 2, wherein: the injection molding piece is fixed to the first fixing portion by external force.

4. The tool box of claim 3, wherein: the injection molding piece is vacuum-adsorbed on the first fixing part.

5. The tool box of claim 2, wherein: the injection molding piece is including the shaping in the frame portion that the position set up all around of upper cover, the upper cover includes first diapire and encloses and establishes first diapire first perisporium that forms all around, the embedded groove is the ring locate the confession of first perisporium frame portion block retaining's second embedded groove, first fixed part with the second embedded groove is located the relative both sides of frame portion set up.

6. The tool box of claim 5, wherein: the die part corresponds be provided with a second fixed part in the outside of one of the two of upper cover and lower cover, the injection molding still including being fixed in the second fixed part forms with the occupy-place the sign part 32 of the first embedded groove of lid, the second fixed part with first embedded groove is located the relative both sides setting of sign part.

7. The tool box of claim 6, wherein: the injection-molded part forms at least one bend.

8. The tool box of claim 7, wherein: the first peripheral wall further comprises a pair of first long walls extending longitudinally and a pair of first wide walls extending in the transverse direction perpendicular to the longitudinal direction and connecting the pair of first long walls, the pair of first wide walls comprises one first wide wall connected with the lower cover through a connecting part and the other first wide wall far away from one side of the lower cover, a first concave part arranged at the middle position and a pair of first grooves arranged at two transverse sides of the pair of first concave parts are arranged on the first wide wall far away from one side of the lower cover, the frame part comprises a third concave part arranged corresponding to the first concave part and a third groove arranged corresponding to the first groove, and the turning part is formed on the third concave part and the third groove.

9. The tool box of claim 8, wherein: the second embedded groove is arranged corresponding to the contour of the periphery of the first peripheral wall.

10. The tool box of claim 9, wherein: the lower cover comprises a second bottom wall and a second circumferential wall formed by surrounding the second bottom wall, the second circumferential wall comprises a pair of second long walls arranged along the vertical direction and a pair of second wide walls connected with the pair of second long walls and arranged along the transverse direction in an extending manner, a second concave part arranged corresponding to the first concave part and second grooves arranged at two transverse sides of the second concave part and corresponding to the first grooves are arranged on the second wide wall of one of the second long walls, a convex block and a clamping block are respectively arranged in the first grooves and the second grooves, and the tool box is further provided with a clamping lip arranged on the convex block and the clamping block to open and close the cover body.

11. A method of manufacturing the tool box of claim 1, wherein: comprises the following steps of (a) carrying out,

12. A method of manufacturing a tool box according to claim 11, wherein: the injection molding part comprises a frame part fixedly positioned on the first fixing part and a mark part fixedly positioned on the second fixing part, and the frame part and the mark part are positioned on two opposite sides of the tubular plastic parison.

13. A method of manufacturing a tool box according to claim 12, wherein: in the second step of manufacturing the tool box, the frame portion and the sign portion are fixed to the first fixing portion and the second fixing portion, respectively, by an external force.

14. A method of manufacturing a tool box according to claim 12, wherein: in the second step of manufacturing the tool box, a frame portion and the index portion are vacuum-sucked to the first fixing portion and the second fixing portion, respectively.