JPH0258410B2 - - Google Patents
Info
- Publication number
- JPH0258410B2 JPH0258410B2 JP57229405A JP22940582A JPH0258410B2 JP H0258410 B2 JPH0258410 B2 JP H0258410B2 JP 57229405 A JP57229405 A JP 57229405A JP 22940582 A JP22940582 A JP 22940582A JP H0258410 B2 JPH0258410 B2 JP H0258410B2
- Authority
- JP
- Japan
- Prior art keywords
- handle body
- tip
- tube
- blade
- handle
- 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.)
- Expired - Lifetime
Links
- 230000003014 reinforcing effect Effects 0.000 claims description 23
- 239000002184 metal Substances 0.000 claims description 20
- 238000005452 bending Methods 0.000 description 18
- 230000002787 reinforcement Effects 0.000 description 4
- 239000003708 ampul Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/02—Dredgers; Soil-shifting machines hand-operated ; handheld soil shifting equipment acting by sucking E02F3/8891
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
Description
【発明の詳細な説明】
本発明は、シヨベル・スコツプなどの手動工
具、詳しくは所定長さの円形の金属管から成る柄
本体と取付筒を備えた工具本体とから成る手動工
具に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hand tool such as a shovel or a shovel, and more particularly to a hand tool consisting of a handle body made of a circular metal tube of a predetermined length and a tool body equipped with a mounting tube.
一般に、シヨベル・スコツプなどの手動工具の
柄は、柄本体にブレードから成る工具本体を接続
して、該ブレードの先端側部分を土砂などの被作
業物中に差し込み、握り体を作動させてブレード
により被作業物を持ち上げるごとく作業する場
合、ブレードの先端側部分が突入した附近の被作
業物が重ければ重い程、ブレードの先端側部分が
被作業物により強固に支持されて、握り体の作動
時、柄本体のブレードとの接続位置に大なる曲げ
応力が集中的に加わることになる。 In general, the handle of a hand tool such as a shovel or scoop is made by connecting a tool body consisting of a blade to the handle body, inserting the tip end of the blade into a workpiece such as earth and sand, and operating the grip body to remove the blade. When lifting a workpiece with a lever, the heavier the workpiece near which the tip of the blade penetrates, the more firmly the tip of the blade will be supported by the workpiece, and the grip will be less likely to operate. At this time, a large bending stress is concentratedly applied to the connection position of the handle body to the blade.
そのため、従来、前記柄本体の端部に、ブレー
ドの取付筒を、突き合わせ状に配置して、両者の
突き合わせ部の長さ方向両側に亘り補強杆を嵌入
補強したり、または、柄本体の端部内部にブレー
ドの取付筒を重ね状に内装すると共に、該取付筒
に、補強杆を嵌入して補強すべくしている。 Therefore, conventionally, the blade mounting tubes are arranged at the end of the handle body so as to butt each other, and reinforcing rods are inserted and reinforced on both lengthwise sides of the abutted parts, or the end of the handle body is reinforced. The blade mounting cylinders are stacked inside the part, and a reinforcing rod is inserted into the mounting cylinders for reinforcement.
ところが、いずれの場合でも、握り体の作動に
より、柄本体におけるブレードとの接続位置に連
続する手元側部分が、前記補強体、またはブレー
ドの取付筒の手元側端部に圧接して、曲げ応力が
集中することになり、結局、前記した問題を根本
的には解決できないのである。 However, in either case, due to the operation of the grip body, the proximal portion of the handle body that is continuous with the connection position with the blade comes into pressure contact with the reinforcing body or the proximal end of the blade mounting tube, causing bending stress. As a result, the above-mentioned problem cannot be fundamentally solved.
本発明の目的は、柄本体として金属管を用い、
そのブレード接続位置に連続する応力集中位置を
膨大させて、小径の金属管を選定しても、握り体
による曲げモーメントに対するブレード接続部周
りの強度を十分に大きくすることが可能で、しか
も軽量化も併せ行なえる手動工具用柄を提供する
点にある。 The object of the present invention is to use a metal tube as the handle body,
Even if the stress concentration point continuous to the blade connection position is expanded and a small diameter metal tube is selected, it is possible to sufficiently increase the strength around the blade connection part against the bending moment caused by the grip, and it is also lightweight. The object of the present invention is to provide a handle for a manual tool that can be used in conjunction with the above operations.
本発明は以上の問題点に鑑み発明したもので、
第１発明は、所定長さの円形の金属管から成る柄
本体１と、取付筒３１を備えた工具本体３とから
成り、前記柄本体１の先端部と前記取付筒３１と
を突合わせ、この突合わせ部分に補強杆４を嵌入
して前記柄本体１の先端部と前記取付筒３１とを
接続して成るシヨベル・スコツプなどの手動工具
において、前記柄本体１の先端部から前記柄本体
１の末端側の所定長さにわたり、前記柄本体１を
構成する前記金属管を拡径して成る膨大部１１を
形成すると共に、前記補強杆４の端部の周方向一
側に、前記端部から延びて前記膨大部１１の内面
に接触する接触部４１を設けたことを特徴とする
ものであり、また、第２発明は、所定長さの円形
の金属管から成る柄本体１と、取付筒３１とを備
えた工具本体３とから成り、前記柄本体１の先端
部内に前記取付筒３１を嵌入して前記柄本体１の
先端部と取付筒３１とを接続したシヨベル・スコ
ツプなどの手動工具において、前記柄本体１の先
端部から前記柄本体１の末端側の所定長さにわた
り、前記柄本体１を構成する前記金属管を拡径し
て成る膨大部１１を形成すると共に、前記取付筒
３１の端部の周方向一側に、前記端部から延びて
前記膨大部１１の内面に接触する接触部３１ａを
設けたことを特徴とするものである。 The present invention was invented in view of the above problems.
The first invention consists of a handle body 1 made of a circular metal tube of a predetermined length, and a tool body 3 equipped with a mounting tube 31, and the tip of the handle body 1 and the attachment tube 31 are butted, In a manual tool such as a shovel or a shovel in which a reinforcing rod 4 is inserted into this butt portion to connect the tip of the handle body 1 and the mounting tube 31, the tip of the handle body 1 is connected to the handle body. An enlarged portion 11 is formed by enlarging the diameter of the metal tube constituting the handle body 1 over a predetermined length on the distal end side of the reinforcing rod 4. The handle body 1 is characterized by being provided with a contact part 41 that extends from the enlarged part 11 and comes into contact with the inner surface of the enlarged part 11.The second invention also includes a handle body 1 made of a circular metal tube of a predetermined length; The tool body 3 is made up of a tool body 3 having a mounting tube 31, and the tool body 3 is fitted into the tip of the handle body 1 to connect the tip of the handle body 1 and the attachment tube 31. In the hand tool, an enlarged portion 11 is formed by expanding the diameter of the metal tube constituting the handle body 1 over a predetermined length from the tip of the handle body 1 to the distal end of the handle body 1, and It is characterized in that a contact portion 31a is provided on one side in the circumferential direction of the end of the mounting tube 31, extending from the end and coming into contact with the inner surface of the enlarged portion 11.
以下、本発明の実施例を図面に基づいて説明す
る。 Embodiments of the present invention will be described below based on the drawings.
第１及び第２図に示したものは、シヨベルであ
つて、第１及び第２図において、１は所定長さの
柄本体、２はこの柄本体１の一端部に取付けた握
り体であつて、柄本体１の他端部には工具本体で
あるブレード３を取付けるのである。即ち、第１
及び第２図に示したものでは、前記柄本体１の端
部に、前記ブレード３を、補強杆４を介して接続
すべくしているのであつて、前記ブレード３は、
前記柄本体１と同じ外径及び厚みをもつた取付筒
３１を備えており、また、前記補強杆４は、この
取付筒３１及び柄本体１に嵌入可能な外径をもつ
た筒状を呈し、かつ先細状にすると共に先端部を
閉じたもので、補強杆４の先端側半部を取付筒３
１内に嵌入させた後、補強杆４の後端側半分を柄
本体１の端部内に嵌入させて、柄本体１とブレー
ド３の取付筒３１とを突き合わせ、この突き合わ
せ部分を補強杆４と共に溶接により固定すべくし
ている。 The thing shown in FIGS. 1 and 2 is a shovel, and in FIGS. 1 and 2, 1 is a handle body of a predetermined length, and 2 is a grip body attached to one end of this handle body 1. A blade 3, which is a tool body, is attached to the other end of the handle body 1. That is, the first
And in the one shown in FIG. 2, the blade 3 is connected to the end of the handle body 1 via a reinforcing rod 4, and the blade 3 is
The reinforcing rod 4 is provided with a mounting tube 31 having the same outer diameter and thickness as the handle body 1, and the reinforcing rod 4 has a cylindrical shape with an outer diameter that can be fitted into the attachment tube 31 and the handle body 1. , and has a tapered shape and a closed tip, so that the tip half of the reinforcing rod 4 is attached to the mounting tube 3.
1, the rear half of the reinforcing rod 4 is inserted into the end of the handle body 1, and the handle body 1 and the mounting tube 31 of the blade 3 are butted against each other, and this abutting portion is inserted together with the reinforcing rod 4. It is intended to be fixed by welding.
斯くして、柄本体１とブレード３の取付筒３１
との接続位置に、作業による曲げモーメントが加
わると、柄本体１における、補強杆４の端部が圧
接する位置に曲げ応力が集中的に加わるのであ
る。 In this way, the mounting tube 31 for the handle body 1 and the blade 3
When a bending moment due to work is applied to the connection position, bending stress is concentratedly applied to the position of the handle body 1 where the end of the reinforcing rod 4 comes into pressure contact.
しかして、第１，２図に示したものは、前記補
強杆４の端部が位置する端部位置、即ち、前記曲
げ応力が集中的に加わる位置に対し、前記ブレー
ド３側に寄つた位置から、前記柄本体１の末端側
即ち手元側にわたり、所定長さの前記膨大部１１
を前記金属管の拡径により断面外形が円形で、等
径状に形成すると共に、前記補強杆４の端部で、
その周方向一側、即ち、第２図において上側を下
側より延長して、換言すると下側を削り取り、前
記柄本体１と補強杆４との一方を他方に対し斜め
にすることにより前記補強杆４を柄本体１の先端
部に嵌入可能で、かつ、前記膨大部１１の内面に
接触する接触部４１を設けるのである。 Therefore, what is shown in FIGS. 1 and 2 is a position closer to the blade 3 side with respect to the end position where the end of the reinforcing rod 4 is located, that is, the position where the bending stress is concentratedly applied. The enlarged portion 11 has a predetermined length and extends from the distal side, that is, the proximal side, of the handle body 1.
is formed to have a circular cross-sectional outer shape and an equal diameter by expanding the diameter of the metal tube, and at the end of the reinforcing rod 4,
The reinforcement is achieved by extending one side in the circumferential direction, that is, the upper side in FIG. A contact portion 41 is provided which allows the rod 4 to be inserted into the tip of the handle body 1 and which contacts the inner surface of the enlarged portion 11.
しかして、前記柄本体１の拡形膨大加工前にお
ける厚みをt1、内・外径の平均径をd1、また、前
記膨大部１１の厚みをt2（＜t1）、内・外径の平均
径をd2（＞d1）とし、また、前記柄本体１の拡径
膨大加工前後において断面積が変化しないものと
すると、πd1t1＝πd2t2、従つて、d1t1＝d2t2の関係
が成り立つ。 Therefore, the thickness of the handle body 1 before the expansion process is t 1 , the average diameter of the inner and outer diameters is d 1 , and the thickness of the enlarged portion 11 is t 2 (<t 1 ), the inner and outer diameters are Assuming that the average diameter of the diameter is d 2 (>d 1 ) and that the cross-sectional area does not change before and after the diameter enlargement process of the handle body 1, πd 1 t 1 =πd 2 t 2 , therefore, d The relationship 1 t 1 = d 2 t 2 holds true.
ところで、前記柄本体１に用いる金属管は、例
えば、外径が30mm、厚みが1.2mmのごとく前記平
均径に対する厚みの値が１より極めて小さいもの
とするのであり、そのため、前記関係式から、柄
本体１を拡形膨大加工して平均径を一定割合、例
えば１割増大したとき、厚みは前記一定割合とほ
ぼ同じ割合、例えば１割減少することになる。 By the way, the metal tube used for the handle body 1 has an outer diameter of 30 mm and a thickness of 1.2 mm, for example, so that the thickness value with respect to the average diameter is extremely smaller than 1. Therefore, from the above relational expression, When the handle body 1 is expanded and enlarged to increase its average diameter by a certain percentage, for example 10%, the thickness will decrease by approximately the same percentage as the certain percentage, for example 10%.
また、断面円形を呈する管体の断面係数は、外
径をＤ、内径をｄとすると、π／32D（D4−d4）で
あり、前記内、外径Ｄ、ｄの平均径Daに対する
厚みｔの値が１よりきわめて小さい場合、近似的
に0.8Da2tとなる。 In addition, the section modulus of a tubular body exhibiting a circular cross section is π/32D (D 4 - d 4 ), where D is the outer diameter and d is the inner diameter. When the value of the thickness t is significantly smaller than 1, it is approximately 0.8Da 2 t.
従つて、前記柄本体１における拡径膨大加工の
前・後の断面係数は、前記使用金属管の平均径に
対する厚みの値が１よりきわめて小さいので、そ
れぞれ近似的に0.8d1 2t1、0.8d2 2t2であり、従つ
て、前記柄本体１を拡形膨大加工していないも
の、及び拡形膨大加工したものの各曲げ応力集中
位置ａにおける、曲げモーメントＭによる曲げ応
力は、それぞれＭ／0.8d1 2t1、Ｍ／0.8d2 2t2となる。 Therefore, the section modulus of the handle body 1 before and after the diameter enlargement processing is approximately 0.8d 1 2 t 1 , respectively, since the thickness value relative to the average diameter of the metal tube used is extremely smaller than 1. 0.8d 2 2 t 2 , therefore, the bending stress due to the bending moment M at each bending stress concentration position a of the handle body 1 that has not been expanded and expanded, and for the handle body 1 that has been expanded and expanded, respectively. M/0.8d 1 2 t 1 and M/0.8d 2 2 t 2 .
そのため、前記柄本体１を、前記したごとく平
均径を前記一定割合、例えば１割増大させ、ひい
ては厚みをほぼ同じ割合例えば１割減少させたと
き、曲げ応力集中位置ａに加わる前記曲げ応力
は、前記一定割合とほぼ同じ割合、例えば１割減
少することになる。 Therefore, when the average diameter of the handle body 1 is increased by the certain percentage, for example 10%, as described above, and the thickness is decreased by approximately the same percentage, for example 10%, the bending stress applied to the bending stress concentration position a is It will be reduced by approximately the same percentage as the above-mentioned constant percentage, for example, by 10%.
従つて、具体的には、柄本体１に用いる金属管
として、通常用いる所定管径、例えば34mmのもの
より小径、例えば32mmで厚み1.2mmのものを使用
して、曲げ応用集中位置ａを含む前記一定距離に
亘り、前記曲げモーメントＭに対する十分な強度
を持つ例えば35.2mmの径に膨大させて、前記膨大
部１１を形成するのである。 Therefore, specifically, as the metal tube used for the handle body 1, a tube with a smaller diameter than the normally used predetermined tube diameter, for example, 34 mm, for example, 32 mm and a thickness of 1.2 mm, is used, and the bending application concentration position a is included. The expanded portion 11 is formed by expanding over the certain distance to a diameter of, for example, 35.2 mm that has sufficient strength against the bending moment M.
しかして、以上の構成において、前記柄本体１
に取付けたブレード３の先端部を土砂などの被作
業物中に突き差し、握り体２を作動させて、ブレ
ード３により被作業物を持ち上げるごとく作業す
る場合、ブレード３の先端側部分が突入した附近
の被作業物が重くて、ブレード３の先端側部分が
被作業物により強固に支持された状態になつて
も、前記柄本体１において、ブレード３との突き
合わせ端部から膨大部１１の基部に至る迄の前記
補強杆４による接続部分は、補強杆４により十分
に補強されると共に、該接続部分に連続する前記
曲げ応力の集中位置ａを含む前記膨大部１１は、
前記補強杆４の端側の上半部が沿うごとく補強さ
れると共に、前記接続部分より外径が膨大した割
合に応じて補強される。 However, in the above configuration, the handle body 1
When working by pushing the tip of the blade 3 attached to the blade into a workpiece such as earth and sand, activating the grip body 2, and lifting the workpiece with the blade 3, the tip of the blade 3 may plunge into the workpiece. Even if the nearby workpiece is heavy and the distal end portion of the blade 3 is firmly supported by the workpiece, the handle main body 1 can be moved from the end where it meets the blade 3 to the base of the enlarged portion 11. The connecting portion by the reinforcing rod 4 up to is sufficiently reinforced by the reinforcing rod 4, and the enlarged portion 11 including the bending stress concentration position a continuous to the connecting portion is:
The upper half of the end side of the reinforcing rod 4 is reinforced along the length of the reinforcing rod 4, and the reinforcing rod is reinforced in proportion to the increase in the outer diameter from the connecting portion.
従つて、前記握り体２の作動により、柄本体１
におけるブレード３との接続部分、及び該部分に
連続する部分に、大なる曲げモーメントが加わつ
ても、十分に対抗でき、何ら支障なく作業を行な
えるものである。 Therefore, by operating the grip body 2, the handle body 1
Even if a large bending moment is applied to the connection part with the blade 3 and the part continuous to the part, the work can be sufficiently resisted and the work can be carried out without any problem.
また、前記膨大部１１を、第１及び第２図のご
とく長さ方向中間の握り位置迄に亘り設けておく
ことにより、握り部分の補強も行なえる。 Furthermore, by providing the enlarged portion 11 up to the grip position halfway in the longitudinal direction as shown in FIGS. 1 and 2, the grip portion can be reinforced.
尚、以上の説明では、前記膨大部１１を長さ方
向全体に等径状に成したが、柄本体１の長さ方向
各部に加わるモーメントは手元側程小さくなるの
で、この曲げモーメントの減少状態に応じて、膨
大部１１の膨大する割合を、第３図のごとく手元
側に往く程小さくなるごとく形成してもよい。 In the above explanation, the enlarged portion 11 is made to have the same diameter throughout the length direction, but since the moment applied to each part of the handle body 1 in the length direction becomes smaller toward the proximal side, the bending moment decreases. Depending on the situation, the expansion ratio of the enlarged portion 11 may be formed such that it becomes smaller toward the proximal side as shown in FIG. 3.
また、以上の説明では、柄本体１をブレード３
の取付筒３１と突き合わせ状に接続すべくしたも
のに適用したが、第４乃至第６図のごとく柄本体
１の端部内にブレード３の取付筒３１を二重状に
嵌入させ、該取付筒３１内に木栓などの圧入ピー
ス４０を圧入するようにしたものにも適用でき
る。 In addition, in the above explanation, the handle body 1 is replaced by the blade 3.
However, as shown in FIGS. 4 to 6, the attachment tube 31 of the blade 3 is fitted into the end of the handle body 1 in a double manner, It can also be applied to a device in which a press-fitting piece 40 such as a wooden plug is press-fitted into the inside of the plug.
この場合前記柄本体１には、該柄本体１の先端
部内に嵌入する前記取付筒３１の端部が位置する
端部位置に対し、前記ブレード３側の位置から柄
本体１の末端側の位置にわたり、前記膨大部１１
を形成すると共に、前記取付筒３１の端部には、
その周方向一側、即ち、第４図において上側を下
側に対し延長して、換言すると下側を削り取り、
前記柄本体１と取付筒３１との一方を他方に対し
斜めにすることにより前記取付筒３１を柄本体１
の先端に嵌入可能で、かつ、前記膨大部の内面に
接触する接触部３１ａを設けるのである。斯くす
ることにより、柄本体１において、圧入ピース４
０により補強された取付筒３１による接続部分、
及び該部分に連続する応力集中位置ａを含む膨大
部１１を、取付筒３１の沿接部分による補強と相
俟つて十分に補強でき、握り体２の作動による大
なる曲げモーメントに、確実に対抗させられるの
である。 In this case, the handle body 1 is located at a position from the blade 3 side to the distal end side of the handle body 1 with respect to the end position where the end of the mounting tube 31 that fits into the tip of the handle body 1 is located. over the ampulla 11
At the end of the mounting tube 31,
One side in the circumferential direction, that is, the upper side in FIG. 4 is extended from the lower side, in other words, the lower side is scraped off,
By making one of the handle body 1 and the attachment tube 31 oblique to the other, the attachment tube 31 can be attached to the handle body 1.
A contact portion 31a is provided which can be inserted into the tip of the bulge and comes into contact with the inner surface of the enlarged portion. By doing this, in the handle body 1, the press-fit piece 4
The connection part by the mounting tube 31 reinforced by 0,
The enlarged portion 11 including the stress concentration position a continuous to this portion can be sufficiently reinforced together with the reinforcement by the attached portion of the mounting tube 31, and the large bending moment caused by the operation of the grip body 2 can be reliably reinforced. They are made to do so.
尚、前記膨大部１１は、柄本体１と取付筒３１
との接続構造に応じて任意に形成でき、前記した
ものと同様の作用効果を発揮させられる。 Note that the enlarged portion 11 is connected to the handle body 1 and the mounting tube 31.
It can be formed arbitrarily depending on the connection structure with the above, and the same effects as those described above can be exhibited.
また、前記したいずれの実施例においても、前
記膨大部１１、ブレード３の取付筒３１の断面外
形を楕円などのごとく非円形にすれば尚一層荷重
方向側に断面係数が大きくなり強度が向上する。 In addition, in any of the embodiments described above, if the cross-sectional outer shape of the enlarged portion 11 and the mounting tube 31 of the blade 3 is made non-circular, such as an ellipse, the section modulus becomes even larger in the load direction side, and the strength is improved. .
また、以上の実施例は、シヨベルについて説明
したが、スコツプ及び農業用ホークなど他の手動
工具に適用できることは云う迄もない。 Further, although the above embodiments have been described with respect to a shovel, it goes without saying that the present invention can be applied to other hand tools such as a shovel and an agricultural hawk.
以上のごとく、本発明によれば、円形の金属管
から成る柄本体を拡径して膨大部を形成している
から、膨大部における金属管の断面積を増大させ
ることなく、即ち柄本体の重量を増大させること
なく断面係数を大きくして、作業時における曲げ
モーメントに対する前記接続部位及び応力集中位
置周りの強度を十分に大きくすることができる
し、しかも、前記膨大部内面に、前記取付筒又は
補強杆の端部を接触状に沿わせているから、応力
集中位置の応力を分散できると共に、前記補強杆
による接続部位の補強もできるのである。 As described above, according to the present invention, since the diameter of the handle body made of a circular metal tube is expanded to form the enlarged part, the cross-sectional area of the metal tube in the enlarged part is not increased, that is, the handle body is expanded. The section modulus can be increased without increasing the weight, and the strength around the connection area and the stress concentration position can be sufficiently increased against the bending moment during work. Alternatively, since the ends of the reinforcing rods are arranged in contact with each other, it is possible to disperse the stress at the stress concentration position, and also to reinforce the connection portion by the reinforcing rods.
換言すると、柄本体を形成する金属管とは別の
部材を用いて、該別部材を金属管外周に付設して
膨大部を形成するものはないから、接続工数を少
なくでき、しかも、前記柄本体に用いる金属管の
径を従来のものに比較して小径にできるのであつ
て、接続部及び応力集中位置周りの強度を著るし
く増大できる効果が得られながら、全体として軽
量化が可能となるのである。又、全体的な軽量化
により、本発明による手動工具を用いての作業に
比較して、大変楽に作業することができるのであ
る。 In other words, since there is no need to use a separate member from the metal tube that forms the handle body and attach the separate member to the outer periphery of the metal pipe to form the enlarged part, the number of connection steps can be reduced, and the handle The diameter of the metal tube used for the main body can be made smaller than that of conventional ones, and the overall weight can be reduced while achieving the effect of significantly increasing the strength around the connection parts and stress concentration points. It will become. Furthermore, the overall weight reduction makes the work much easier compared to work using hand tools according to the present invention.
第１図は本発明の実施例を示す平面図、第２図
はその一部断面正面図、第３図及び第４図は本発
明の他の実施例を示す一部断面正面図、第５、第
６図は、第４図のものの組立前の状態を示す説明
図である。
１……柄本体、１１……膨大部、２……握り
体、３……ブレード、４……補強杆。
FIG. 1 is a plan view showing an embodiment of the present invention, FIG. 2 is a partially sectional front view thereof, FIGS. 3 and 4 are partially sectional front views showing other embodiments of the present invention, and FIG. , FIG. 6 is an explanatory view showing the state of the device shown in FIG. 4 before assembly. 1...Handle body, 11...Ampulla, 2...Grip body, 3...Blade, 4...Reinforcement rod.
Claims (1)
と、取付筒３１を備えた工具本体３とから成り、
前記柄本体１の先端部と前記取付筒３１とを突合
わせ、この突合わせ部分に補強杆４を嵌入して前
記柄本体１の先端部と前記取付筒３１とを接触し
て成るシヨベル・スコツプなどの手動工具におい
て、前記柄本体１の先端部から前記柄本体１の末
端側の所定長さにわたり、前記柄本体１を構成す
る前記金属管を拡径して成る膨大部１１を形成す
ると共に、前記補強杆４の端部の周方向一側に、
前記端部から延びて前記膨大部１１の内面に接触
する接触部４１を設けたことを特徴とする手動工
具。 ２ 所定長さの円形の金属管から成る柄本体１
と、取付筒３１を備えた工具本体３とから成り、
前記柄本体１の先端部内に前記取付筒３１を嵌入
して前記柄本体１の先端部と取付筒３１とを接続
したシヨベル・スコツプなどの手動工具におい
て、前記柄本体１の先端部から前記柄本体１の末
端側の所定長さにわたり、前記柄本体１を構成す
る前記金属管を拡径して成る膨大部１１を形成す
ると共に、前記取付筒３１の端部の周方向一側
に、前記端部から延びて前記膨大部１１の内面に
接触する接触部３１ａを設けたことを特徴とする
手動工具。[Claims] 1. A handle body 1 made of a circular metal tube of a predetermined length.
and a tool body 3 equipped with a mounting tube 31,
A shovel/scoping tip formed by abutting the tip of the handle body 1 and the mounting tube 31, and inserting a reinforcing rod 4 into this abutting portion, so that the tip of the handle body 1 and the attachment tube 31 are in contact with each other. In a manual tool such as the above, an enlarged portion 11 is formed by expanding the diameter of the metal tube constituting the handle body 1 over a predetermined length from the tip of the handle body 1 to the distal end of the handle body 1. , on one circumferential side of the end of the reinforcing rod 4,
A manual tool characterized in that a contact portion 41 is provided that extends from the end portion and contacts the inner surface of the enlarged portion 11. 2 Handle body 1 consisting of a circular metal tube of a predetermined length
and a tool body 3 equipped with a mounting tube 31,
In a manual tool such as a shovel or a shovel in which the mounting tube 31 is fitted into the tip of the handle body 1 to connect the tip of the handle body 1 and the attachment tube 31, the handle can be inserted from the tip of the handle body 1 to the handle. An enlarged portion 11 is formed by expanding the diameter of the metal tube constituting the handle body 1 over a predetermined length on the distal end side of the main body 1, and on one side in the circumferential direction of the end of the mounting tube 31, A manual tool characterized in that a contact portion 31a is provided that extends from the end portion and contacts the inner surface of the enlarged portion 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22940582A JPS59122632A (en) | 1982-12-27 | 1982-12-27 | Handle for manual tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22940582A JPS59122632A (en) | 1982-12-27 | 1982-12-27 | Handle for manual tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59122632A JPS59122632A (en) | 1984-07-16 |
| JPH0258410B2 true JPH0258410B2 (en) | 1990-12-07 |
Family
ID=16891691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22940582A Granted JPS59122632A (en) | 1982-12-27 | 1982-12-27 | Handle for manual tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59122632A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0728503U (en) * | 1993-05-07 | 1995-05-30 | 武盛 豊永 | Electrode contact device for EEG |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4520000Y1 (en) * | 1966-12-20 | 1970-08-12 | ||
| JPS47275U (en) * | 1971-10-22 | 1972-06-26 | ||
| JPS5224322U (en) * | 1975-08-11 | 1977-02-21 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS496802U (en) * | 1972-04-18 | 1974-01-21 | ||
| JPS5673765U (en) * | 1979-11-09 | 1981-06-17 | ||
| JPS57131276U (en) * | 1981-02-09 | 1982-08-16 |
-
1982
- 1982-12-27 JP JP22940582A patent/JPS59122632A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4520000Y1 (en) * | 1966-12-20 | 1970-08-12 | ||
| JPS47275U (en) * | 1971-10-22 | 1972-06-26 | ||
| JPS5224322U (en) * | 1975-08-11 | 1977-02-21 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0728503U (en) * | 1993-05-07 | 1995-05-30 | 武盛 豊永 | Electrode contact device for EEG |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59122632A (en) | 1984-07-16 |
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