JP4487480B2 - Power tool storage case - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a storage case for battery tools such as impact drivers and power tools with cords such as screw drivers.
Hereinafter, a battery-type cordless impact driver will be described as an example.
[0002]
[Prior art]
The conventional impact driver storage case structure is composed of a storage side case consisting of a tool body storage part, a spare battery storage part, a charger storage part, etc. and a lid side case as a lid, each made of plastic molded by injection molding. , and the butterfly-numbered and inserted into holes provided metal pins in each case, and is freely opened and closed.
For example, an impact driver uses various bits and cones having a hexagonal axis as shown in FIG. 7 in an impact driver. Therefore, when the tool is placed in a vacant space of the case, Bits could dance or move around and damage the tool body.
[0003]
Also, when the tool body is stored in the case, there is a gap between the tool body and the lid side case. In this case as well, the tool body dances and moves around in the case, such as during transportation, and the sound is noisy. was there.
Moreover, in order to prevent this, it was possible to add a thin plate-like rib to the lid side case and hold it down, but in recent years, a rubber-like soft member has been attached to the outer frame of the tool body, or a soft member. the although becoming more likely to overmolding, the case of the configuration according, there is a possibility that damage the soft member with a thin ribs described above.
[0004]
[Problems to be solved by the invention]
Here, the problem to be solved by the present invention is to prevent a tip tool such as a bit, which is a stored item, from dancing around the case, making a sound, or damaging the tool body. In addition, Mawari dance in the case as well the tool body, or the sound, is to ensure that not to damage the tool body.
[0005]
[Means for Solving the Problems]
The above-described object can be achieved by creating a dedicated storage portion (hereinafter referred to as a bit holder) that can securely hold the hexagonal shaft portion of the bit in the case and store it without play.
Moreover, it can achieve by pressing down a tool main body with another member which has a plane part instead of a rib . Another member of this can be inexpensively by serving as a battery cap for holding the terminal of the battery.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention is applied to a cordless impact driver powered by 蓄 batteries using FIGS explaining.
In FIG. 1, the storage case 1 is formed with ribs for storing the tool body 3 and the spare storage battery 4. The tool body 3 is integrally molded with a soft rubber-like material called an elastomer 3b on an outer frame 3a. The storage battery 4 is covered with a battery cap 11 that protects the terminal portion.
Since the storage case 1 is formed by injection molding, the wall thickness is a uniform thickness of 3 mm to 3.5 mm, and there is no hollow portion as in blow molding.
[0007]
On the other hand, the lid side case 2 is also a uniform molded body having a thickness of 3 mm to 3.5 mm, which is similarly molded by injection molding. A bit holder for accommodating a tip tool such as a bit is integrally formed with resin at the corner portion. The bit holder retaining rib 7 composed of the convex portion 7b of the interval is formed in a narrow width is about 5mm wide at its upper end with two parallel planes 7a of 6.35mm as shown in FIG. 3 is longitudinal the two sets are provided, also has a gap width of 6.35 mm between the two sets of holding ribs 7, the narrow portion of the 5mm width such Iga Idlib 8 is provided. As shown in FIG. 3, the guide rib 8 is higher than the height of the holding rib 7.
[0008]
The bit holder of this embodiment can store one bit by the set of the above-mentioned two holding ribs 7 and one guide rib 8, but three sets are prepared as shown in FIG. It is.
Then, the cover case 2 that has the engaging portion 10 formed in the resin rib is provided. This is formed of vertical and horizontal ribs, and has a width that allows the battery cap 11 to be lightly press-fitted and fixed by hand. On the other hand, the battery cap 11 is a cap that protects the terminal portion of the battery, and has a cup shape having a thickness of 1 mm and a flat surface portion 11a at the bottom. The battery cap 11 is inserted and fixed to the engaging portion 10 in the direction of the arrow.
As shown in FIG. 6, the storage case 1 and the lid case 2 are connected by pins 22, and a handle 20 and a latch 21 are attached to form a tool storage case.
Next, the operation of the storage case of the present invention will be described.
[0009]
As shown in FIG. 7, the tip tool used for the impact driver includes various bits and cones having a hexagonal shaft 15 a having a common dimension of 6.35 mm on the opposite side.
For example, a double-ended bit 15 will be described as an example. When the bit 15 is attached to the holding rib 7 as shown in FIG. 3, first, the guide rib 8 is higher in height, so it is inserted into the 6.35 mm width of the guide rib 8. Since the two dimensions of the bit 15 are the same as the width of 6.35 mm, the direction is restricted, and the holding rib 7 is entered from the hexagonal apex portion, and the convex portion 7 b made as narrow as 5 mm is lightly pressed. Since the two planes 7a passing therethrough are 6.35 mm, the position is determined perfectly.
[0010]
If there is no restriction of the direction by the guide rib 8, the hexagonal shaft 15a can be easily inserted into the holding rib 7 from a state in which the hexagonal apex is laterally oriented (the hexagonal shaft cross section in FIG. In this case, since the convex portion 7b has a width of 5 mm and the diagonal distance of the apex is 7 mm, the press-fitting is tight, and the deformation of the holding rib 7 is also large, so that there is a problem such as damage. coming out.
There are various types of bit 15 as shown in FIG. 7, but the bit holder can be stored and cannot move if a plurality of the same bit holders are prepared.
Bit 15 or the like is move around during transport, or damage to the tool body 3, the sound is eliminated or to Mini, also, can also be easier to find in the storage case.
Therefore, the groove of the guide rib 8 is L, the distance between the convex portions 7b of the holding rib 7 is L1, the distance between the two faces of the hexagonal shaft portion of the tip tool is L2, and the vertex and vertex of the hexagonal shaft portion of the tip tool When the distance between and is L3, each dimension has the following relationship.
L3> L ≧ L2> L1
Next, operation | movement of the engaging part 10 provided in the lid | cover side case 2 is demonstrated.
When the resin battery cap 11 is lightly press-fitted and fixed to the engaging portion 10, the tool body 3, the storage case 1, the lid case 2, the engaging portion 10, and the battery cap 11 are in a positional relationship as shown in FIG. . In this state, the elastomer 3b of the soft resin of the tool body 3 is in a distance relationship of only a few millimeters with the flat portion 11a of the battery cap 11. Thereby, even if the tool body 3 in the middle tries to move during transportation, it is pressed and does not move, and there is no worry of making a sound or being damaged. Moreover, to hit the plane portion 11a of the battery cap 11, increasing the area hit the elastomer 3b soft Shitsuju fat of the tool body 3, the elastomer 3b is hardly scratched.
[0011]
The battery cap 11 is a cap for a cassette type battery 3c that is detachably attached to the tool body 3, and is removed while the tool body 3 is in use. Although the removed battery cap 11 is also difficult to store, there is no risk of loss by inserting it into the engaging portion 10. In addition, since the roots and holding of the storage of the tool body 3, not the cost, it is convenient.
Note that the spare battery 4 is housed in a separate battery cap 11 is in place, here, it does not move because it is fixed to the terminal portion 4 c of the battery.
Further, the bit holder and the engaging portion 10 of the present invention are integrally formed when the lid-side case 2 is formed, so that it is not necessary to prepare separate parts, and the cost can be reduced.
However, the effect is the same even if it is molded and assembled with separate parts, except for the cost.
[0012]
【The invention's effect】
According to the present invention, since the bit holder is attached to the case, it is possible to prevent the bit from moving around during transportation and to prevent sound and damage. Further, since the guide rib for regulating the direction is provided, the direction at the time of insertion can be regulated, and the holding rib is always entered from the top of the hexagon, so that it is easy to insert and there is no breakage.
On the other hand, since the remaining battery cap is fixed to the engaging part of the lid side case and the electric tool is pressed by the battery cap, the electric tool does not move during transportation and does not make a sound or be damaged . In addition, since the battery cap is also used, the battery cap is not lost, and the cost can be increased.
[Brief description of the drawings]
FIG. 1 is a perspective view of a tool storage case according to the present invention.
FIG. 2 is a perspective view of the bit holder of the present invention.
FIG. 3 is a front view of the bit holder of the present invention.
FIG. 4 is a cross-sectional view showing a tool storage state including an engagement portion and a battery cap according to the present invention.
FIG. 5 is a perspective view of a battery with a terminal protected by a battery cap.
FIG. 6 is a perspective view showing an external appearance of a tool storage case.
FIG. 7 is a side view showing an example of a bit or a cone having a hexagonal axis.
[Explanation of symbols]
1 is a storage side case, 2 is a lid side case, 3 is a tool body, 3a is an outer frame, 3b is an elastomer, 3c is a storage battery (main body), 4 is a storage battery (spare), 7 is a holding rib, and 7a is two parallel Flat surface, 7b is a convex portion, 8 guide ribs, 10 is a locking portion, 11 is a battery cap, 11a is a flat portion, 15 is a double-ended bit, 15a is a hexagonal shaft, 20 is a handle, 21 is a latch, 22 is a pin .

Claims (4)

A storage case having a rib to form a room for housing the power tool, meet the power tool storage case having a cover case that is pivotally attached to the storage case,
Two planes provided with a first width of the same size as the width between two opposing faces of the hexagonal shaft formed on the bit attached to the power tool, and the first plane at each end of the two planes a holding rib having a convex portion provided at a lower second width than, have a height greater than the holding rib, wherein at least the width between two opposing surfaces of the hexagonal shaft of the bit the power tool storage case, characterized in that provided integrally with the lid casing and guide ribs which have a groove of smaller third width than the distance 2 vertices of opposing hexagonal shaft. An electric motor comprising a storage side case having ribs for forming a room for storing a power tool and a storage battery detachable from the power tool, and a lid side case rotatably attached to the storage side case A tool storage case,
The lid side case is integrally provided with an engaging portion made of vertical and horizontal ribs having dimensions capable of fitting a resin battery cap attached to the terminal portion of the storage battery, and the inner surface of the battery cap is formed at both ends of the vertical and horizontal ribs . parts to engage, the power tool storage case, characterized that you hold the battery cap by both end portions of the vertical and horizontal ribs. Two planes provided with a first width that is the same as the width between two opposing faces of the hexagonal shaft of the bit attached to the power tool, and the first width at each end of the two planes The power tool storage case according to claim 2, wherein a holding rib having a convex portion provided with a smaller second width is provided integrally with the lid side case. An electric motor comprising a storage side case having ribs for forming a room for storing a power tool and a storage battery detachable from the power tool, and a lid side case rotatably attached to the storage side case A tool storage case,
The lid side case is integrally provided with an engaging portion made of vertical and horizontal ribs having dimensions capable of fitting a battery cap attached to the terminal portion of the storage battery, and the inner surface of the battery cap is engaged with the vertical and horizontal ribs. A power tool storage case, wherein the engaging portion is provided at a position facing the power tool stored in the storage case.

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