JP3108413B1 - Storage case - Google Patents

Abstract

An object of the present invention is to change the overall length of a storage case, not stepwise, continuously, and to store bar-shaped storage items stored in the case without rattling in a vertical direction. SOLUTION: A tool storage case 1 has an upper case 10 made of a rectangular cylindrical body having a rectangular cross section having a lower end opened and an upper end closed and having a flat inner wall surface 11; It is a cylindrical body having a rectangular cross-section having a closed lower end and an outer wall surface 21 having a size and shape substantially matching the inner wall surface of the upper case 10. Two extending notches 22 are formed, and a friction engagement body 23 is provided on the outer wall surface between the notches 22, 22 so as to protrude outside the inner wall surface 11 of the upper case 10. A lower case 20 is provided, and the upper case 10 is fitted to the lower case 20 by frictionally engaging the friction engagement body 23 with the inner wall surface of the upper case 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage case, and more particularly to a storage case for storing a rod-shaped storage item such as a drill or an end mill.

[0002]

2. Description of the Related Art Conventionally, as a storage case for storing a drill or the like, a storage case including a lower case having a predetermined length and an upper case externally fitted so as to cover an opening of the lower case is known. This type of storage case generally has a structure in which the closed state is maintained by fitting the unevenness formed on the outer surface of the lower case with the unevenness formed on the inner surface of the upper case. For example, a storage case described in U.S. Pat. No. 4,509,656 is a kind of such a conventional storage case, in which an upper case having a web protruding from an inner surface of a corner portion and an outer surface of the corner portion at a predetermined interval. And a lower case having a large number of convex portions formed so as to expand.

[0003] In this type of conventional storage case, the case can be closed by applying a pushing force to the upper case, and the case can be opened by applying a pulling force to the upper case. Easy.

[0004]

However, such a conventional storage case has a problem that its length can only be changed stepwise. As a result, the length of the drill or the like stored in the case cannot be completely matched with the length of the entire storage chamber of the case, and there is a problem that the stored object rattles vertically in the case.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a storage case capable of storing bar-shaped storage items stored in the case without rattling in a vertical direction.

[0006]

SUMMARY OF THE INVENTION A storage case according to the present invention, which has been made to achieve the above object, has a rectangular tube having a rectangular cross-section having an open lower end and a closed upper end and having a flat inner wall surface. An upper case made of a body, and a cylindrical body having a rectangular cross section having an outer wall with dimensions and shapes substantially matching the inner wall surface of the upper case, the upper end being opened and the lower end being closed, Two notches extending in the axial direction are formed at predetermined positions on the two opposing surfaces, and a frictional engagement body is formed so that the outer wall surface between the notches protrudes outside the inner wall surface of the upper case. And a lower case having an inner wall surface of the upper case.
Elastic deformation caused by the two notches
While bending a possible part toward the inside of the lower case,
The upper case is configured to be fitted to the lower case at a desired depth by frictionally engaging the upper case with the upper case.

According to the storage case of the present invention, a rod-shaped storage component such as a drill or an end mill is stored in the lower case, and the upper case is pushed over the lower case from above, so that the lower case is placed on the lower case. The friction engagement body provided abuts against the inner wall surface of the upper case, and the upper case and the lower case are rubbed in such a manner that the elastically deformable portion formed by the two notches is bent inward of the lower case. The fitting can be firmly performed by the frictional force of the engaging body. At this time,
The upper case can be continuously pressed against the lower case, and the length of the entire case can be continuously changed. As a result, it is possible to make the length of the rod-shaped storage item stored in the case equal to the entire length of the case, and to prevent the storage item from rattling in the case in the vertical direction.

Here, in the storage case of the present invention, it is preferable that the friction engagement body is constituted by a plurality of ridges having a right-angled triangular cross section having an upper surface inclined.

[0009] With this configuration, when the upper case is fitted to the lower case, the upper case can be smoothly pushed over the lower case.

In the storage case of the present invention, it is preferable that the frictional engagement body is formed of a convex ridge in a front view.

With this configuration, when the upper case is fitted to the lower case, the upper case can be smoothly pushed over the lower case.

Further, in the storage case according to the present invention, the friction engagement body is provided near an opening of the lower case, and a flat outer wall surface is provided below the friction engagement body by a sufficient length. Good to put.

[0013] With this configuration, the storage case of the present invention can change its entire length in a large range.

Further, in the storage case of the present invention, it is preferable that a projection having an arc-shaped cross section is provided on the inner surface side of the portion where the frictional engagement member is provided.

With this configuration, when the lower case is manufactured by injection molding, when the lower case is extracted from the inner mold, the projection having an arc-shaped cross section is pushed outward by the inner mold, and as a result, the friction is reduced. The portion between the cutouts where the engagement body is formed can be deformed to a slightly swelled outward state. As a result, according to this storage case, the frictional engagement force between the upper case and the lower case becomes large.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A tool storage case 1 according to a first embodiment of the present invention comprises an upper case 10 and a lower case 20, as shown in FIGS.
Each of these components 10 and 20 is manufactured by injection molding a transparent plastic.

The tool storage case 1 of this embodiment has an upper case 10 formed of a rectangular cylindrical body having a rectangular cross-section having a rectangular cross-section having an open lower end and a closed upper end, and having a flat inner wall surface 11. It is formed of a tubular body having a rectangular cross section having an outer wall surface 21 having a size and a shape substantially matching the inner wall surface of the upper case 10 and having a lower end closed and opened at predetermined positions on two opposing side walls. , Two notches 22, 22 extending in the axial direction are formed, and the notches 22, 22 are formed.
A lower case 20 having a frictional engagement body 23 configured to protrude outside the inner wall surface 11 of the upper case 10 on the outer wall surface between the lower case 20 and the frictional engagement body 23 The upper case 10 is configured to be securely fitted to the lower case 20 by being engaged.

In the tool storage case 1,
As shown in an enlarged manner in FIG. 3, the frictional engagement body 23 is configured as a large number of ridges 24 having a right-angled triangular cross section having an upper surface as an inclined surface. In addition, this many ridges 2
Numeral 4 is configured so that the amount of protrusion gradually increases from the upper one to the lower one.

Further, in the tool storage case 1, each of the ridges 24 constituting the frictional engagement body 23 has a U shape when viewed from the front.

In addition, in the tool storage case 1, the friction engagement body 23 is provided near the opening of the lower case 20, and a flat outer wall surface 25 is provided below the friction engagement body 23 by a sufficient length. It is configured.

In the tool storage case 1,
A projection 26 having an arc-shaped cross section is provided on the inner surface side of the portion where the friction engagement body 23 is provided.

With this configuration, the lower case 2
0 is manufactured by injection molding.
When this is extracted, the projection 26 having an arc-shaped cross section is pushed outward by the inner mold, and as a result, the portion between the cutouts 22, 22 in which the frictional engagement bodies 23 are formed is deformed to a slightly swelled outward state. Can be done. As a result, according to the tool storage case 1, the upper case 10 and the lower case 2
The frictional engagement force with zero can be increased.

As shown in FIG. 1, a reinforcing rib 12 is provided on the ceiling of the upper case 10 and a reinforcing rib 27 is provided on the bottom of the lower case 20. In the figure, reference numeral 28 denotes the lower case 2
No. 0 grips 13 and 29 are air vent holes for facilitating removal of the cases 10 and 20 from the inner mold so that a vacuum is not formed between the inner mold and the molded product during the injection molding.

According to the tool storage case 1 of this embodiment, a rod-shaped storage component such as a drill or an end mill is stored in the lower case 20, and as shown in FIG. By pushing the case 10 from above,
A frictional engagement body 23 provided on the lower case 20 abuts against the inner wall surface 11 of the upper case 10, and an elastically deformable portion formed between the two cutouts 22 is formed on the lower case 20.
The upper case 10 and the lower case 20 can be tightly fitted in such a manner as to bend inward. At this time, upper case 1
0 can be continuously pressed against the lower case 20, and the entire length of the tool storage case 1 can be continuously changed. As a result, it is possible to make the length of the rod-shaped storage object stored in the tool storage case 1 equal to the entire length of the tool storage case 1, and to prevent the storage object from rattling in the tool storage case 1 in the vertical direction. Can be prevented.

In the tool storage case 1,
A configuration in which the frictional engagement body 23 is composed of a large number of ridges 24 having a right-angled triangular cross section with the upper surface being an inclined surface, and the amount of protrusion of the ridges 24 gradually increases from top to bottom. Therefore, when fitting the upper case 10 to the lower case 20, the upper case 10 can be smoothly pushed over the lower case 20.

Further, in the tool storage case 1, since the frictional engagement body 23 is formed by a convex ridge 24 having a U-shape in a front view, the upper case 10 can be The upper case 10 can be smoothly pressed against the lower case 20 when fitting.

In addition, in the tool storage case 1, the friction engagement body 23 is provided in the vicinity of the opening of the lower case 20, and a flat outer wall surface 25 is provided below the friction engagement body 23 by a sufficient length. Therefore, the tool storage case 1 can change its entire length in a large range.

Next, a second embodiment will be described. In the tool storage case according to the second embodiment, a lower case 30 as shown in FIG. 4 is employed. The lower case 30 is also manufactured by injection molding a transparent plastic.

The lower case 30 in the tool storage case according to the second embodiment has an open upper end and a closed lower end, and has a rectangular cross section having an outer wall surface 31 having a shape substantially coinciding with the inner wall surface of the upper case. Two notches 32, 32 extending in the axial direction are formed at predetermined positions on two opposing surfaces of the side wall surface, and the notches 32, 32 are formed.
A friction engagement body 33 is provided on the outer wall between the friction engagement bodies 33 so as to protrude outward from the inner wall of the upper case. Then, similarly to the first embodiment, the friction engagement body 33 is frictionally engaged with the inner wall surface of the upper case so that the upper case is fitted to the lower case 30. It is configured. The notches 32 are formed so as to be cut to the upper end of the lower case 30.

Also in this second embodiment,
As shown in FIG. 4 (C), the friction engagement body 33 is formed in a triangular cross section having an upper surface as an inclined surface, and the number of protrusions gradually increases from the upper side to the lower side. Are formed as the ridges 34.

Further, also in the second embodiment, each of the ridges 34 constituting the frictional engagement body 33 has a U shape when viewed from the front.

In addition, in the tool storage case 1, an inner surface of a portion where the friction engagement body 33 is provided is provided.
An arc-shaped projection 36 is provided.

With this configuration, the lower case 3
0 is manufactured by injection molding, the lower case 30
At the time of extraction, the projection 36 having an arc-shaped cross section is pushed outward by the inner die, and as a result, the portion where the frictional engagement body 33 is formed can be deformed to a state in which it is slightly expanded outward. As a result, also in the tool storage case according to the second embodiment, the upper case and the lower case 30 can be used.
And the frictional engagement force between them can be increased.

As shown in FIG. 4, the inner wall surface of the lower case 30 has ribs 3 corresponding to the diameter of a drill or the like accommodated therein.
7 is provided so that a drill or the like can be securely held in the lower case 30 from the outer peripheral surface thereof. The reference numeral 38 in the figure denotes a grip.

Also in the tool storage case according to the second embodiment, a rod-like storage part such as a drill is stored in the lower case 30 and the upper case is pushed from above to thereby cover the upper case.
A friction engagement body 33 provided in the lower case 30 abuts on the inner wall surface of the upper case, and deflects an elastically deformable portion formed between the two notches 32, into the lower case 30. In this way, the upper case and the lower case 30 can be closely fitted. At this time, the upper case is
, And the entire length of the tool storage case can be continuously changed. As a result, the length of the drill or the like stored in the tool storage case can be made equal to the total length of the tool storage case, and this storage can be prevented from rattling in the tool storage case in the vertical direction. .

Further, in this tool storage case, the frictional engagement body 33 has a plurality of convex ridges 34 each having a right-angled triangular cross-section having an upper surface as an inclined surface. When the upper case is fitted to the lower case 30, the upper case can be smoothly pushed over the lower case 30.

Further, in this tool storage case,
The frictional engagement body 33 has a convex ridge 34 having a U-shape in a front view.
Therefore, when the upper case is fitted to the lower case 30, the upper case can be smoothly pushed over the lower case 30.

Next, a third embodiment will be described. In the tool storage case according to the third embodiment, as shown in FIG.
, The shank holder 40 is pushed from above and used. The shank holder 40 is also manufactured by injection molding a transparent plastic.

In the shank holder 40 according to the third embodiment, a holding member 41 for holding a drill or the like is formed inside. The outer wall surface 42 of the shank holder 40 is connected to the inner wall surface 2 of the lower case 20.
It is configured so that it substantially matches 9. For this reason, when the shank holder 40 is fitted to the lower case 20, the projection 26 having an arc-shaped cross section of the lower case is pushed outward, and the friction engagement body 33 as a whole is swelled outward. it can. As a result, when the upper case 10 as described in the first embodiment is pressed against the lower case 20, the engagement force between the frictional engagement body 23 and the inner wall surface 11 of the upper case 10 increases. , Firmly both cases 1
0, 20 can be fitted.

Next, a fourth embodiment will be described. In the tool storage case according to the fourth embodiment, as shown in FIG. 6A, the inner wall surface 51 is completely flat with respect to the lower case 20 of the first embodiment, including the ceiling. The upper case 50 is configured to be pushed over. The upper case 50 is also manufactured by injection molding a transparent plastic.

Next, a fifth embodiment will be described. In the tool storage case according to the fifth embodiment, as shown in FIGS. 6B and 6C, the inner wall surface 61 is made flat with respect to the lower case 20 of the first embodiment. The upper case 60 is configured to be pushed over. The upper case 60 is also manufactured by injection molding a transparent plastic.

Here, the upper case 60 is composed of two parts, a tube part 62 and a cap part 63. A flange portion 64 for fitting the cap portion 63 is provided at the upper end of the cylindrical portion 62. In addition, cap part 6
The fitting 3 is provided with a fitting claw 65 for fitting to the flange portion 64, and a reinforcing rib 66 is provided on a ceiling portion thereof.

According to the upper case 60 of the fifth embodiment, since the upper case 60 is divided into two parts, the cylindrical part 62 and the cap part 63, there is an advantage that the production by injection molding becomes easy.

Although the embodiments of the present invention have been described in detail, the present invention is not limited to these embodiments.

For example, the frictional engagement member provided in the lower case is not a convex ridge having a right-angled triangular cross section as in the above-described embodiment, but is simply a shape in which the outer wall surface between the notches bulges outward in a bow shape. It may be just being done.

[0046]

As described in detail above, according to the storage case of the present invention, the entire length of the storage case can be continuously changed instead of stepwise, and the rod-shaped storage items stored in the case can be changed. Can be stored without rattling in the vertical direction.

Further, according to the storage case of the present invention, although the intentional opening and closing operation of the case is easy, the effect that the lower case is prevented from being accidentally dropped can be surely exhibited.

[Brief description of the drawings]

1A and 1B show a first embodiment, wherein FIG. 1A is a plan view of a lower case, FIG. 1B is a front view of the lower case, FIG. D) is a sectional view of the upper case, and (E) is a bottom view of the upper case.

2A and 2B show a tool storage case according to the first embodiment, in which FIG. 2A is a front view when the overall length is the shortest, FIG. 2B is a side view showing a partial cross section of FIG. (C)
FIG. 4 is a front view of a state in which the upper case is pushed halfway.

FIG. 3 is an enlarged sectional view showing a portion of a frictional engagement body according to the first embodiment.

4A and 4B show a second embodiment, in which (A) is a plan view of a lower case, (B) is a front view of the lower case, (C) is a plan view of the lower case, and (D) is a plan view of the lower case. FIG. 3E is a side view showing a partial cross-section, and FIG. 4E is an enlarged cross-sectional view showing a friction engagement body.

5A and 5B show a third embodiment, in which FIG. 5A is a plan view of a shank holder, FIG. 5B is a front view showing a partial cross section of the shank holder, and FIG. It is the front view shown.

FIGS. 6A and 6B show a fourth embodiment and a fifth embodiment, in which FIG. 6A is a sectional view showing an upper case as a fourth embodiment, and FIG.
FIG. 14 is a bottom view showing a cap portion of an upper case as a fifth embodiment, and FIG. 14C is a front view showing a lower section as a fifth embodiment in a partial cross section.

[Explanation of symbols]

1 ... Tool storage case, 10 ... Upper case, 11
..Inner wall surface, 12: rib for reinforcement, 13: air vent hole, 20: lower case, 21: outer wall surface, 22
... Notch, 23 ... Friction engagement body, 24 ... Protrusion,
25: flat outer wall surface, 26: projection with an arcuate cross-section, 27: rib for reinforcement, 28: grip,
29 ... air vent hole, 30 ... lower case, 31 ...
・ Outer wall surface, 32: Notch, 33: Friction engagement body, 3
4 ··· ridge, 36 ··· projection with circular cross section, 37
・ Rib, 38 ・ ・ ・ Grip, 40 ・ ・ ・ Shank holder, 41 ・ ・ ・ Hold member, 42 ・ ・ ・ Outer wall surface, 50
... upper case, 60 ... upper case, 61 ... inner wall surface, 62 ... cylinder part, 63 ... cap part, 64 ...
・ Flange, 65: fitting claw, 66: rib for reinforcement.

Claims (5)

(57) [Claims] 1. An upper case comprising a rectangular cylindrical body having a rectangular cross section with a lower end opened and an upper end closed and having a flat inner wall surface, an upper end opened and a lower end closed, It consists of a cylindrical body having a rectangular cross section having an outer wall surface of a size and shape substantially matching the inner wall surface of the case, and two axially extending notches are formed at predetermined positions on two opposing side surfaces of the side wall surface. And a lower case having a frictional engagement body configured to protrude outside the inner wall surface of the upper case on the outer wall surface between the cutouts, wherein the frictional engagement body is provided inside the upper case. In front of the wall
An elastically deformable portion formed by the notch of the above-mentioned Article 2.
The lower case and the lower case while bending the minute to the inside of the lower case.
A storage case configured to frictionally engage the upper case to fit the upper case to the lower case at a desired depth. 2. The storage case according to claim 1, wherein the frictional engagement body is a large number of ridges formed in a right-angled triangular cross section having an upper surface as an inclined surface. 3. The storage case according to claim 1, wherein the frictional engagement body is formed of a convex ridge in a front view. 4. The storage case according to claim 1, wherein the friction engagement body is provided near an opening of the lower case, and a flat outer wall surface below the friction engagement body has a sufficient length. A storage case characterized by being configured to exist only for minutes. 5. The storage case according to claim 1, further comprising a projection having an arc-shaped cross section on an inner surface side of a portion where the frictional engagement body is provided. Storage case.