JPH02232182A - Handle for manual tool - Google Patents
Handle for manual toolInfo
- Publication number
- JPH02232182A JPH02232182A JP4919989A JP4919989A JPH02232182A JP H02232182 A JPH02232182 A JP H02232182A JP 4919989 A JP4919989 A JP 4919989A JP 4919989 A JP4919989 A JP 4919989A JP H02232182 A JPH02232182 A JP H02232182A
- Authority
- JP
- Japan
- Prior art keywords
- groove
- handle
- rod
- shaped portion
- shape
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000000694 effects Effects 0.000 abstract description 11
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 7
- 239000002023 wood Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 241000450412 Nierembergia repens Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野]
本発明は、スキグワ・クマデ等の手動工具の柄部分の構
造に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to the structure of a handle portion of a hand tool such as a sukiguwa or a kumade.
[従来の技術及び課8F
ここでいう手動工具とは、金属、木、竹等よりなる作業
部分と、これを取りつける柄とを有しており、動力源を
持たない工具を指す。但し柄自身をその中心軸周りに回
動させるもの(例えばキリやドライバー等)は含まない
ものとする。[Prior Art and Section 8F The term "hand tool" as used herein refers to a tool that has a working part made of metal, wood, bamboo, etc., and a handle to which it is attached, but does not have a power source. However, this does not include devices that rotate the handle itself around its central axis (for example, a drill or a screwdriver).
このような工具としては、クマデ・トビグチ・シラカッ
プ・パネルブラシ・クワなどがある。Examples of such tools include a kumade, a tobiguchi, a white cup, a panel brush, and a hoe.
このような手動工具の柄の形状は単なる棒状である.そ
して断面形状は、円形又は楕円形のものが多い。The shape of the handle of such a hand tool is simply a stick. The cross-sectional shape is often circular or oval.
上記のような手動工具はまた、先端側に金属部分(fi
nによっては木製、その他もある)を有している。Hand tools such as those mentioned above also have a metal part (fi) on the tip side.
(Some are made of wood, others are made of wood.)
工具自身の性質の殆どは、この金属部分の形状に依存し
ており、種々の目的に応じた仕事(引き寄せる・掘る、
等々)を行ない易くするための補助的なものとして柄が
存在しているものであると言える。Most of the properties of the tool itself depend on the shape of this metal part, and it can be used for various purposes (pulling, digging,
It can be said that the handle exists as an auxiliary item to make it easier to perform such tasks.
例えば、クワ(鍬)の場合であると、柄を両手で支持し
ながら、金属部分を振り上げた後振り下ろして土中にこ
の金属部分を没入させる際の速度を大きくし、且つ、楽
な姿勢で作業できるだけの長さ、つまり1m数十〇Il
程度を柄の長さとして採用している。For example, in the case of a hoe, while supporting the handle with both hands, the metal part is swung up and then swung down to sink the metal part into the soil, increasing the speed and maintaining a comfortable posture. The length that can be worked with is 1 meter, several tens of meters.
The degree is used as the length of the handle.
この柄は、その表面の滑りやすさという点に関しては、
工具の種類に応じた適度の状態が望まれることとなる。In terms of the slipperiness of the surface of this pattern,
An appropriate state is desired depending on the type of tool.
しかし、実際に見られる工具の柄は、滑り易いものが多
く、ふりおろした後持ち上げる際に、柄自身を強い扶持
力で支える必要があるので、滑り易すぎる柄は良くない
。However, many of the handles of tools that are actually seen are slippery, and it is necessary to support the handle itself with a strong supporting force when lifting it after swinging it down, so a handle that is too slippery is not a good idea.
滑りやすい柄は、仕事の能率が低下することとなるし、
トビグチの如く手動工具としては大型のもので重量物を
扱う場合などでは漬ってしまうことが直ちに重大な事故
につながることともなり怪我の危険性も大きく、また強
い握力を維持してゆくことは疲労感を高めることとなる
.
[課題を解決するための手段〕
そこで本発明者は、上記諸点に鑑み鋭意研究の結果、遂
に本発明の柄を完成させたものであり、その特徴とする
ところは、断面形状が円形または楕円形である棒状部分
を有する棒体の該棒状部分を、その周方向に沿って刻し
た形で得られる鋭利なエッジを有する溝を具備する柄で
あって、該溝はその底面が該棒状部分の中心軸と同心で
ある真円柱表面に相当し、また該溝は本体長手方向にそ
って1.5〜5cm+程度のピッチで多数刻設されてお
り、またその最大深さはIIIIIm以上である点にあ
る.ここで「棒状部分」とは、柄全体のうち、断面形状
が円形または楕円形である部分を指すものである。手動
工具は通常、手元と反対側の部分に金属その他による作
業部材が取設されており、その連結箇所の形状は作業部
材の構造その他によって種々の形態がある.例えばスキ
やクワ等では金属部分に近い側の柄は、断面が矩形状と
なっているものが多いが、この部分については棒状部材
の概念から外れた部分となっている.棒状部分は、工具
を作業の中で支持するため握る部分付近を指すものであ
るとも言える。A slippery handle will reduce work efficiency,
When handling heavy objects such as a tobiguchi, which is a large hand tool, getting wet can immediately lead to a serious accident and there is a high risk of injury, and it is important to maintain a strong grip. This increases the feeling of fatigue. [Means for Solving the Problems] Therefore, the inventor of the present invention has finally completed the handle of the present invention as a result of intensive research in view of the above points, and its feature is that the cross-sectional shape is circular or elliptical. A handle having a groove having a sharp edge obtained by carving a rod-shaped portion of a rod along the circumferential direction of the rod-shaped portion, the groove having a bottom surface that is similar to the rod-shaped portion. It corresponds to the surface of a perfect cylinder that is concentric with the central axis of the main body, and the grooves are carved in large numbers along the longitudinal direction of the main body at a pitch of about 1.5 to 5 cm+, and the maximum depth thereof is more than III m. It is at the point. Here, the "rod-shaped portion" refers to a portion of the entire handle that has a circular or elliptical cross-sectional shape. Hand tools usually have a metal or other working member attached to the opposite side of the hand, and the shape of the connection point varies depending on the structure of the working member and other factors. For example, in many cases, such as plows and hoes, the handle on the side closest to the metal part has a rectangular cross section, but this part deviates from the concept of a rod-shaped member. It can also be said that the rod-shaped portion refers to the vicinity of the portion that is gripped to support the tool during work.
「溝」は、棒状部分の周方向に沿って刻したような形の
ものであって、木製のものの場合は円柱または楕円柱状
の棒状体をバイトやグラインダーの如きもので切削して
得るが、同様の形状のものをプラスチック一体成形によ
って得ることもできるので、本発明は製法自体を特に限
定するものではない.
木製の場合を詳述してみるとこの溝は、棒状部分を刻し
て得ることとなるが、その方法としては柄本体又は回転
するカッターやグラインダー等を本体の回りに回転させ
るのが一般的である.そしてその回転は、該棒状部分が
回転の中心になるようにして行われる.従って、溝の底
面は、該棒状部分の中心軸と同心である真円柱表面を呈
することとなる。A "groove" is a shape cut along the circumferential direction of a rod-shaped part, and in the case of a wooden part, it is obtained by cutting a cylindrical or elliptical rod-shaped body with a tool such as a cutting tool or a grinder. Since a similar shape can also be obtained by integral plastic molding, the present invention does not particularly limit the manufacturing method itself. In the case of wood, this groove is obtained by carving a rod-shaped part, but the common method is to rotate the handle body or a rotating cutter or grinder around the body. It is. The rotation is performed such that the rod-shaped portion becomes the center of rotation. Therefore, the bottom surface of the groove presents a perfect cylindrical surface that is concentric with the central axis of the rod-shaped portion.
溝のピンチは、1.5〜5c請程度である.これは滑り
止め効果を最大に挙げるのに必要な間隔であり、これよ
りも短いと作業者の指が嵌りに《いため防滑効果が低減
し、これ以上長いと指が溝底面内を滑ってやはり防清効
果は薄れてしまうこととなる.また、溝のエッジは鋭利
なものとする.従って、断面が波形などは本発明の概念
に含まれない.
なお、十分な防滑効果を付与するために、溝の最大深さ
はl一一以上とする.但し、溝の深さは深すぎると、柄
自身の強度が低下することともなるので、工具の性質に
応じて最通な深さを設定すべきである.「最大深さ」と
は、溝の深さが一定でない場合、即ち棒状部分の断面が
楕円形である場合の長径側部分の溝の深さを指すもので
ある.棒状部分の断面が楕円形の場合には、溝が周全域
を巡らずその短径側が全く削られない場合が生じるが、
そうした場合であってもその時できる凹部を溝と定義す
る.
[実施例]
以下図面に示す実施例に基づいて本発明を更に詳細に説
明する。The pinch of the groove is about 1.5 to 5 cm. This is the distance necessary to maximize the anti-slip effect; if it is shorter than this, the worker's fingers will get stuck in the groove, reducing the anti-slip effect; if it is longer than this, the worker's fingers will slip inside the groove bottom, and the The anti-cleansing effect will be weakened. Also, the edges of the grooves should be sharp. Therefore, a wave-shaped cross section is not included in the concept of the present invention. In addition, in order to provide a sufficient anti-slip effect, the maximum depth of the groove should be 11 or more. However, if the depth of the groove is too deep, the strength of the handle itself will be reduced, so the depth should be set to a suitable depth depending on the properties of the tool. "Maximum depth" refers to the depth of the groove on the longer diameter side when the depth of the groove is not constant, that is, when the cross section of the rod-shaped portion is elliptical. If the cross section of the rod-shaped part is oval, the groove may not go around the entire circumference and the short diameter side may not be cut at all.
Even in such a case, the concavity formed at that time is defined as a groove. [Examples] The present invention will be described in more detail below based on examples shown in the drawings.
第1図は、本発明に係る柄1の1例を用いた鍬2の斜視
図である。FIG. 1 is a perspective view of a hoe 2 using an example of a handle 1 according to the present invention.
図より明らかなように、柄1は、先端側の一部が断面矩
形状となっている以外は、その手元側までほとんどの部
分が円柱形状をしている。As is clear from the figure, most of the handle 1 has a cylindrical shape up to the proximal side, except for a portion on the tip side which has a rectangular cross section.
そして、この円柱形状をした部分である棒状部分3には
、多数の溝4が刻設されている.第2図は、本発明に係
る柄1の部分斜視図である。溝4は、エッジが鋭利であ
って防滑性の高いものとなっている。A large number of grooves 4 are cut into the rod-shaped portion 3, which is a cylindrical portion. FIG. 2 is a partial perspective view of the handle 1 according to the present invention. The grooves 4 have sharp edges and are highly anti-slip.
第3図及び第4図は、柄1の基本形状が円柱ではなく楕
円柱状の場合を示したものであり、溝4の形状も多少こ
れまでのものとは相違している.即ち、溝4は、棒状部
分3を周回しておらず、切欠状のものとなっている。Figures 3 and 4 show a case where the basic shape of the handle 1 is not a cylinder but an elliptical cylinder, and the shape of the groove 4 is also somewhat different from the previous ones. That is, the groove 4 does not go around the rod-shaped portion 3, but has a notch shape.
溝4の底面4aは、第3図の横断面図である第4図から
も明らかなように、真円柱5の表面の一部に相当するこ
ととなっている。こうすることによって、柄自体の折れ
に対する強度劣化を最少のものとするとともに、製作も
し易いという効果も併せて有することとなる.そして、
断面が楕円である柄1の該楕円と、真円柱5とは同心の
ものとして、バランスの良いものとしている。As is clear from FIG. 4, which is a cross-sectional view of FIG. 3, the bottom surface 4a of the groove 4 corresponds to a part of the surface of the perfect cylinder 5. By doing this, the strength deterioration due to breakage of the handle itself is minimized, and it also has the effect of being easy to manufacture. and,
The ellipse of the handle 1 having an elliptical cross section and the perfect cylinder 5 are concentric and well-balanced.
なお図示した例の如く柄1が木製の場合には溝4は、通
常の木工旋盤等を利用して製作しても良いが、専用機械
を使用してより効率良《製作するようにしても良い。図
示はしないがこうした専用機械としては、例えば溝4の
形状、ピッチに応じたバイトやグラインダーを多数配設
し、これに回転させた柄材料を押圧する形式のものがあ
る.勿論、柄1の材質がプラスチックの場合には不要も
のである。Note that if the handle 1 is made of wood as in the example shown, the groove 4 may be made using a normal wood lathe, but it may also be made more efficiently using a special machine. good. Although not shown in the drawings, such a specialized machine includes, for example, a type in which a large number of cutting tools and grinders are arranged according to the shape and pitch of the groove 4, and a rotating handle material is pressed against these tools. Of course, this is unnecessary if the material of the handle 1 is plastic.
[発明の効果]
以上詳細に説明したように本発明に係る手動工具の柄は
、断面形状が円形または楕円形である棒状部分を有する
棒体の該棒状部分を、その周方向に沿って刻した形で得
られる鋭利なエッジを有する溝を具備する柄であって、
該溝はその底面が該棒状部分の中心軸と同心である真円
柱表面に相当し、また該溝は本体長手方向にそって1.
5〜5cs程度のピッチで多数刻設されており、またそ
の最大深さは1++s以上であることを特徴とするもの
であり、以下述べる如き種々の効果を有する非常に高度
な発明である。[Effects of the Invention] As described above in detail, the handle of the hand tool according to the present invention is a rod having a rod-shaped portion having a circular or elliptical cross-sectional shape, and is carved along the circumferential direction of the rod-shaped portion. A handle comprising a groove with a sharp edge obtained in the form of a
The groove corresponds to a perfect cylindrical surface whose bottom surface is concentric with the central axis of the rod-shaped portion, and the groove has a cylindrical surface along the longitudinal direction of the main body.
It is characterized by being carved in large numbers at a pitch of about 5 to 5 cs, and its maximum depth is 1++s or more, and is an extremely advanced invention that has various effects as described below.
■ 溝を有しているため、防滑効果がある.■ 溝のピ
ッチが1.5〜5ca+程度であるため、支持している
いずれかの指が溝のエッジにかかることとなり、しかも
指は溝内に一部嵌ることとなるので、防滑効果は更に高
いものとなる。■ Has an anti-slip effect because it has grooves. ■ Since the pitch of the grooves is approximately 1.5 to 5ca+, one of the supporting fingers will rest on the edge of the groove, and the finger will also partially fit into the groove, making the anti-slip effect even worse. It will be expensive.
■ 溝の底面が真円柱表面に相当することとなっている
ので、柄自身の折れに対する強度の劣化が少なくてすむ
。■ Since the bottom surface of the groove corresponds to the surface of a perfect cylinder, there is less deterioration in strength against breakage of the handle itself.
■ 溝の底面が真円柱表面に相当することとなっている
ので、柄材料が木材である場合それを中心軸回りに回転
させ、それにバイトやグラインダー等を押し当てて溝を
製作する場合の作業性が良い.
■ 溝を多数有しているので形状が個性的なものとなり
、美的効果がある.■ The bottom of the groove corresponds to the surface of a perfect cylinder, so if the handle material is wood, rotate it around the central axis and press a tool such as a cutting tool or grinder against it to create the groove. Good sex. ■ Since it has many grooves, it has a unique shape and has an aesthetic effect.
第1図は本発明に係る手動工具の柄を有した手動工具の
一例を示す斜視図、第2図は柄の部分斜視図、第3図は
本発明の他の実施例の一部を示す斜視図、そして第4図
は第3図で示したものの断面図である.
1・・・・・・柄
2・・・・・・鍬
3・・・・・・切欠部
4・・・・・・溝
4a・・・溝底面
5・・・・・・真円柱Fig. 1 is a perspective view showing an example of a hand tool having a handle according to the present invention, Fig. 2 is a partial perspective view of the handle, and Fig. 3 is a part of another embodiment of the present invention. A perspective view, and FIG. 4 is a sectional view of what is shown in FIG. 1...Handle 2...Hoe 3...Notch 4...Groove 4a...Groove bottom 5...Perfect cylinder
Claims (1)
る棒体の該棒状部分を、その周方向に沿って刻した形で
得られる鋭利なエッジを有する溝を具備する柄であって
、該溝はその底面が該棒状部分の中心軸と同心である真
円柱表面に相当し、また該溝は本体長手方向にそって1
.5〜5cm程度のピッチで多数刻設されており、また
その最大深さは1mm以上であることを特徴とする手動
工具の柄。1. A handle having a groove with a sharp edge obtained by carving a rod-like portion having a circular or elliptical cross-sectional shape along the circumferential direction of the rod-like portion; The groove corresponds to a perfect cylindrical surface whose bottom surface is concentric with the central axis of the rod-shaped portion, and the groove corresponds to a perfect cylindrical surface whose bottom surface is concentric with the central axis of the rod-shaped portion, and the groove extends along the longitudinal direction of the main body.
.. A hand tool handle characterized by being carved in large numbers at a pitch of about 5 to 5 cm, and having a maximum depth of 1 mm or more.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4919989A JPH02232182A (en) | 1989-03-01 | 1989-03-01 | Handle for manual tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4919989A JPH02232182A (en) | 1989-03-01 | 1989-03-01 | Handle for manual tool |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02232182A true JPH02232182A (en) | 1990-09-14 |
Family
ID=12824331
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4919989A Pending JPH02232182A (en) | 1989-03-01 | 1989-03-01 | Handle for manual tool |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02232182A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120217030A1 (en) * | 2011-02-28 | 2012-08-30 | Johnson Alan L | Double Headed Hand-Powered Cultivator |
-
1989
- 1989-03-01 JP JP4919989A patent/JPH02232182A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120217030A1 (en) * | 2011-02-28 | 2012-08-30 | Johnson Alan L | Double Headed Hand-Powered Cultivator |
US8776909B2 (en) * | 2011-02-28 | 2014-07-15 | Alan L. Johnson | Double headed hand-powered cultivator |
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