JP2009083058A - Power tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a power tool allowing inexpensive changes of appearance color and decorations and sure protection of the appearance color and decorations, with a high design property. <P>SOLUTION: This power tool has: a driving source such as a motor; a transmission mechanism portion for transmitting driving force of the driving source; a switch for controlling start and stop of the driving source; a body portion incorporating the driving source and the transmission mechanism portion, a handle portion extending from the body portion and incorporating the switch; and a housing being an external frame forming the body portion and the handle portion. At least an outer surface of the housing is painted, and a soft layer made of a soft elastic body and having permeability is integrally formed on the outer surface of the housing to cover the painting surface. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an electric tool having an outer frame in which a soft layer is integrally formed on an outer surface.

  A conventional electric power tool having an outer frame integrally formed with a soft layer on an outer surface controls a driving source such as a motor, a transmission mechanism that transmits a driving force of the driving source, and activation / stopping of the driving source. And a body part that is an outer frame that houses the drive source and the transmission mechanism part, and a handle part that is an outer frame that extends from the body part and incorporates the switch therein.

  Here, as an example of this type of electric tool, a conventional impact driver will be described with reference to FIGS. FIG. 9 is a left side view of a conventional impact driver, and FIG. 10 is a right sectional view showing the internal structure of the impact driver.

  The illustrated impact driver 1 ′ has a housing 2 and a hammer case 3 that are outer frames forming an outer shape. The housing 2 has a substantially cylindrical body portion 2 A extending in the front-rear direction, and the body portion 2 A. It is comprised with the handle | steering-wheel part 2B provided in a row so that the side view may be substantially T-shaped. In the body 2A of the housing 2, a motor 4 as a driving source, a planetary gear mechanism 5 for decelerating the rotation of the motor 4, and the rotation of the motor 4 decelerated by the planetary gear mechanism 5 are rotated. A striking mechanism that converts the striking force into a bit (not shown) that is a tip tool is accommodated.

  A trigger switch 10 for controlling the start / stop of the motor 4 is accommodated in the upper portion of the handle portion 2B of the housing 2, and a battery receiving portion 8 is accommodated in the lower portion. A battery 9 as a rechargeable power source is detachably attached to the lower end.

  Incidentally, a soft layer 12 made of a soft elastic body such as an elastomer is integrally formed on the outer surface of the body portion 2A and the handle portion 2B of the housing 2 (the hatched portion in FIG. 9). The impact at the time is absorbed, and the soft feeling and fit feeling when the user grasps the body part 2A and the handle part 2B by hand are enhanced.

  In such power tools, conventionally, in order to increase the color variation of the appearance according to the user's preference, a method of changing the resin color of the housing or the soft layer or coating the outer surface of the housing is known. ing. In addition, in order to improve the design, a method is known in which a seal printed with an arbitrary character or design is attached to the housing, or an arbitrary character or design is formed in a convex relief shape on the housing.

  Patent Document 1 proposes a method of sandwiching a sheet on which an arbitrary character or design is printed between a cover made of a transparent or translucent resin and covering a part of the outer frame of the power tool and the outer frame. ing.

JP-A-2004-249408

  In the electric tool having the outer frame shown in FIGS. 9 and 10, materials for the number of colors are required to change the resin color of the housing and the soft layer, and the cost is high.

  In addition, when the outer surface of the housing was painted, the painted surface was easily peeled off when it contacted the mating material during use.

  Further, when printing was performed on the outer surface of the housing, the printed surface was easily peeled off when it contacted with the mating material during use.

  Moreover, when a label was affixed to the outer surface of the housing, the label was easily peeled off during use.

  In addition, when an arbitrary character or design was formed on the housing in a convex relief shape, the convex relief hit the fingers and hindered operation.

  Further, when a sheet on which arbitrary characters or designs were printed was sandwiched between the cover that covers a part of the outer frame and the outer frame, dust entered from the gap of the cover, and the sheet was easily stained.

  Also, when metallic color coating was applied to the housing, it reflected light and hindered operation.

  The present invention has been made in view of the above problems, and the object of the present invention is that the appearance color and decoration can be changed at low cost, and the appearance color and decoration are reliably protected and have high design properties. It is to provide a power tool.

  In order to achieve the above object, a first aspect of the present invention includes a driving source such as a motor, a transmission mechanism that transmits a driving force of the driving source, a switch that controls activation and stop of the driving source, An electric tool comprising: a body portion that is an outer frame that houses a drive source and the transmission mechanism portion; and a handle portion that is an outer frame that extends from the body portion and incorporates the switch therein. It is characterized in that at least a part of the outer surface is coated, and a soft layer made of a soft elastic body and having permeability is integrally formed on the outer surface of the housing so as to cover the painted surface.

  The invention according to claim 2 is a drive source such as a motor, a transmission mechanism unit that transmits a driving force of the drive source, a switch that controls activation / stop of the drive source, the drive source, and the transmission mechanism unit. And a handle part that is an outer frame that extends from the body part and incorporates the switch therein, and has a character or a pattern on the outer surface of the housing. A soft layer which is printed and made of a soft elastic body and has transparency is integrally formed on the outer surface of the housing so as to cover the printing surface.

  According to a third aspect of the present invention, there is provided a driving source such as a motor, a transmission mechanism unit that transmits a driving force of the driving source, a switch that controls activation and stop of the driving source, the driving source, and the transmission mechanism unit. And a handle part that is an outer frame that extends from the body part and incorporates the switch therein, and has a character or a pattern on the outer surface of the housing. A printed label is affixed, and a soft layer made of a soft elastic body and having permeability is integrally formed on the outer surface of the housing so as to cover the label.

  According to a fourth aspect of the present invention, there is provided a drive source such as a motor, a transmission mechanism unit that transmits a driving force of the drive source, a switch that controls activation / stop of the drive source, the drive source, and the transmission mechanism unit. And a handle part that is an outer frame that extends from the body part and incorporates the switch therein, and has a character or a pattern on the outer surface of the housing. A soft layer formed in a convex relief shape and made of a soft elastic body and having transparency is integrally formed on the outer surface of the housing so as to cover the convex relief.

  According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the housing is a pair of left and right outer frames divided into two, and the soft layer is brought into contact with a mating surface of the housing. It is provided as described above.

  A sixth aspect of the invention is characterized in that in the invention of any one of the first to fifth aspects, at least a part of the outer surface of the soft layer is matted.

  The invention described in claim 7 is characterized in that, in the invention described in any one of claims 1 to 6, the handle portion and the grip portion of the body portion have a soft layer different from the soft layer.

  According to the first aspect of the present invention, the outer surface of the housing is coated, and a soft layer made of a soft elastic body and having transparency is integrally formed on the outer surface of the housing so as to cover the painted surface. As a result, it is possible to increase the color variation at a lower cost as compared with the case where the resin color is changed, and to prevent the painted surface from being scratched or peeled off. In addition, the soft layer having transparency adds depth to the color of the painted surface and improves the design.

  According to the second aspect of the present invention, an arbitrary character or design is printed on the outer surface of the housing, and a soft layer made of a soft elastic body and having transparency is covered with the outer surface of the housing so as to cover the printing surface. As a result, the appearance image can be changed at low cost, and the printed surface can be prevented from being scratched or peeled off. In addition, the soft layer having transparency adds depth to the texture of the printed surface and improves the design.

  According to a third aspect of the present invention, a label on which an arbitrary character or design is printed is affixed to the outer surface of the housing, and a soft layer made of a soft elastic material and having transparency is provided so as to cover the label. By integrally molding on the outer surface of the label, the label can be prevented from being soiled or peeled off. In addition, the soft layer having transparency adds depth to the texture of the label and improves the design.

  According to the fourth aspect of the present invention, an arbitrary character or design is formed in a convex relief shape on the outer surface of the housing, and a soft layer made of a soft elastic body and having transparency is provided so as to cover the convex relief. By integrally molding on the outer surface of the housing, it is possible to prevent the convex relief from hitting the fingers and hindering the operation. In addition, the soft layer having transparency adds depth to the texture of the convex relief and improves the design.

  According to the fifth aspect of the present invention, the surface treatment portion, the printing portion, the label, or the convex relief is provided by providing a soft layer on the outer surface of the housing so as to come into contact with the mating surface of the housing. It can be provided across a pair of left and right housings.

  According to the invention of claim 6, even if a metallic color coating having a high reflectance is applied to the outer surface of the housing by matting the outer surface of the soft layer, the reflection of light is suppressed and the operation is hindered. Can be prevented.

  According to the seventh aspect of the present invention, since the grip portion of the handle portion and the body portion has a soft layer different from the soft layer, the impact during operation is absorbed and the softness when gripping is performed. Feel and fit are enhanced.

Hereinafter, embodiments of the present invention will be described with reference to FIGS. In addition, the same number is attached | subjected to the same component as the conventional electric tool shown in FIG. 9, 10, and the description is abbreviate | omitted.
<Embodiment 1>
Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 is a left side view of an impact driver as an embodiment of an electric power tool according to the present invention, FIG. 2 is a rear view of the impact driver, FIG. 3 is a right side sectional view showing an internal structure of the impact driver, and FIG. FIG. 5 is a left side view of an impact driver as an embodiment of another electric tool according to the present invention, and FIG. 6 is an impact driver as an embodiment of another electric tool according to the present invention. FIG. 7 is a left side view of an impact driver as an embodiment of another power tool according to the present invention, and FIG. 8 is a cross-sectional view taken along line BB in FIG.

  First, as shown in FIG. 3, the impact driver 1 according to the present invention has a motor 4 as a driving source and a transmission for transmitting a driving force of the motor 4 inside a housing 2 and a hammer case 3 that are outer frames. A planetary gear mechanism 5 that is a mechanism portion and an anvil 7 that is a tip tool holding portion to which the driving force of the motor 4 is transmitted by the planetary gear mechanism 5 are accommodated. On the other hand, a trigger switch 10 for controlling the start / stop of the motor 4 is accommodated in the upper portion of the handle portion 2B, and a battery receiving portion 8 is accommodated in the lower portion. A battery 9 that is a rechargeable power source is detachably mounted. The impact driver 1 performs a required work by rotating and hitting an anvil 7 and a bit (not shown) which is a tip tool attached to the hammer 6 housed in the body portion 2A of the housing 2. Note that the housings 2a and 2b forming a pair of left and right outer frames are formed by integrally molding a hard resin such as polypropylene, polycarbonate, nylon, and ABS.

  The characteristic configuration of the present invention will be described below. In the impact driver 1 according to the present invention, as shown in FIG. 1, a soft layer 12 made of elastomer or the like is formed on a part of a body portion 2A of the housing 2 and the entire handle portion 2B (the hatched line in FIG. 1). Part), the soft layer 12 prevents the operator's fingers from gripping the body portion 2A or the handle portion 2B of the housing 2, thereby improving the grip and improving the operability and workability.

  Further, the entire outer surface of the housing 2 except for the soft layer 12 is painted, and the painted portion 13 is covered with a permeable soft layer 11 made of an elastomer or the like. For this reason, when the appearance color of the impact driver 1 is changed, it is only necessary to change the color of the painted surface 13, and the color variation of the impact driver 1 is increased at a lower cost than when the resin color of the housing 2 is changed. Can do. Further, the transparent soft layer 11 can prevent the painted surface 13 from being scratched or peeled off, and can add depth to the painted surface 13 to improve the design.

  Moreover, as shown in FIG. 4, the coating part 13 is provided ranging over the housings 2a and 2b by providing the permeable soft layer 11 so that it may contact on the mating surface of the housings 2a and 2b.

Further, by matting the outer surface of the permeable soft layer 11, even when a metallic color having a high reflectance is used for the painted surface 13, it is possible to suppress light reflection and prevent the operation from being hindered. .
<Embodiment 2>
In the impact driver 1A according to the present invention, as shown in FIG. 5, a pattern is printed on the outer surface of the housing 2 excluding the soft layer 12, and the printed surface 14 is formed on the permeable soft layer 11 made of elastomer or the like. Covered. The permeable soft layer 11 can prevent the printed surface 14 from being scratched or peeled off, adds depth to the texture of the printed surface 14, and improves the design.
<Embodiment 3>
In the impact driver 1B according to the present invention, as shown in FIG. 6, a label 15 printed with a pattern is attached to the outer surface of the housing 2 excluding the soft layer 12, and the label 15 is made of an elastomer or the like. The transparent soft layer 11 is covered. The permeable soft layer 11 can prevent the label 15 from being soiled or peeled off, adds depth to the texture of the label 15, and improves the design.
<Embodiment 4>
In the impact driver 1C according to the present invention, as shown in FIGS. 7 and 8, a brand logo is formed in a convex relief 16 shape on the outer surface of the housing 2 excluding the soft layer 12, and the convex relief 16 is It is covered with a permeable soft layer 11 made of an elastomer or the like. This permeable soft layer 11 can prevent the convex relief 16 from hitting the fingers and hindering the operation when the body portion 2A of the housing 2 is gripped. Will improve.

  Further, when the permeable soft layer 11 is used instead of the soft layer 12, only one kind of material is required for the soft layer, so that the cost is low.

  In the second to fourth embodiments, similarly to the first embodiment, the transparent soft layer 11 is provided so as to be in contact with the mating surfaces of the housings 2a and 2b, so that printing is performed across the housings 2a and 2b. A surface 14, a label 15, and a convex relief 16 are provided. Further, the outer surface of the permeable soft layer 11 is matted, so that even when a metallic color having a high reflectance is used for the printing surface 14, the label 15, and the convex relief 16, the reflection of light is suppressed and the operation is hindered. Can be prevented.

  It should be noted that the present invention is not limited to application only to the impact driver, and it is needless to say that the present invention can be widely applied to any power tool such as a nailing machine or a drill.

It is a left view of the electric tool which concerns on the 1st Embodiment of this invention. It is a rear view of the electric tool which concerns on this invention. It is right side sectional drawing which shows the internal structure of the electric tool which concerns on this invention. It is the sectional view on the AA line of FIG. It is a left view of the electric tool which concerns on the 2nd Embodiment of this invention. It is a left view of the electric tool which concerns on the 3rd Embodiment of this invention. It is a left view of the electric tool which concerns on the 4th Embodiment of this invention. It is the BB sectional view taken on the line of FIG. It is a left view of the conventional electric tool. It is right side sectional drawing which shows the internal structure of the conventional electric tool.

Explanation of symbols

1, 1A, 1B, 1C are impact drivers, 2, 2a, 2b are housings, 2A is a body part, 2B is a handle part, 3 is a hammer case, 4 is a motor, 5 is a planetary gear mechanism, 6 is a hammer, Anvil, 8 is a battery receiving part, 9 is a battery, 10 is a trigger switch (switch),
11 is a permeable soft layer, 12 is a soft layer, 13 is a coating surface, 14 is a printing surface, 15 is a label, and 16 is a convex relief.

Claims (7)

A drive source such as a motor;
A transmission mechanism for transmitting the driving force of the driving source;
A switch for controlling start / stop of the drive source;
A body portion including the drive source and the transmission mechanism portion;
A handle portion extending from the body portion and incorporating the switch;
In the electric tool having a housing which is an outer frame forming the body part and the handle part,
It is characterized in that at least a part of the outer surface of the housing is coated, and a soft layer made of a soft elastic body and having permeability is integrally formed on the outer surface of the housing so as to cover the painted surface. Electric tool to do. A drive source such as a motor;
A transmission mechanism for transmitting the driving force of the driving source;
A switch for controlling start / stop of the drive source;
A body portion including the drive source and the transmission mechanism portion;
A handle portion extending from the body portion and incorporating the switch;
In the electric tool having a housing which is an outer frame forming the body part and the handle part,
Characters or designs are printed on the outer surface of the housing, and a soft layer made of a soft elastic body and having transparency is integrally formed on the outer surface of the housing so as to cover the printing surface. Electric tool. A drive source such as a motor;
A transmission mechanism for transmitting the driving force of the driving source;
A switch for controlling start / stop of the drive source;
A body portion including the drive source and the transmission mechanism portion;
A handle portion extending from the body portion and incorporating the switch;
In the electric tool having a housing which is an outer frame forming the body part and the handle part,
A label printed with characters or designs is affixed to the outer surface of the housing, and a soft layer made of a soft elastic material and having transparency is integrally formed on the outer surface of the housing so as to cover the label. An electric tool characterized by A drive source such as a motor;
A transmission mechanism for transmitting the driving force of the driving source;
A switch for controlling start / stop of the drive source;
A body portion including the drive source and the transmission mechanism portion;
A handle portion extending from the body portion and incorporating the switch;
In the electric tool having a housing which is an outer frame forming the body part and the handle part,
Characters or designs are formed in a convex relief shape on the outer surface of the housing, and a soft layer made of a soft elastic body and having transparency is integrally formed on the outer surface of the housing so as to cover the convex relief. An electric tool characterized by   The electric tool according to any one of claims 1 to 4, wherein the housing is a pair of left and right outer frames divided into two, and the soft layer is provided so as to come into contact with a mating surface of the housing. .   The electric tool according to claim 1, wherein at least a part of the outer surface of the soft layer is frosted.   The power tool according to claim 1, further comprising a soft layer different from the soft layer in the handle portion and the grip portion of the body portion.

Images