JPH05207820A - Pruning shears - Google Patents

Pruning shears

Info

Publication number
JPH05207820A
JPH05207820A JP4054502A JP5450292A JPH05207820A JP H05207820 A JPH05207820 A JP H05207820A JP 4054502 A JP4054502 A JP 4054502A JP 5450292 A JP5450292 A JP 5450292A JP H05207820 A JPH05207820 A JP H05207820A
Authority
JP
Japan
Prior art keywords
blade
cutting
receiving blade
receiving
cut
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.)
Granted
Application number
JP4054502A
Other languages
Japanese (ja)
Other versions
JP2729721B2 (en
Inventor
Ichiro Kawabata
一郎 川畑
Yoshiaki Nakanishi
祥晃 中西
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ARUSU HAMONO SEIZO KK
Original Assignee
ARUSU HAMONO SEIZO KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ARUSU HAMONO SEIZO KK filed Critical ARUSU HAMONO SEIZO KK
Priority to JP4054502A priority Critical patent/JP2729721B2/en
Priority to TW081109831A priority patent/TW204295B/en
Priority to KR1019930000951A priority patent/KR0156015B1/en
Publication of JPH05207820A publication Critical patent/JPH05207820A/en
Application granted granted Critical
Publication of JP2729721B2 publication Critical patent/JP2729721B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/02—Secateurs; Flower or fruit shears
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/02—Secateurs; Flower or fruit shears
    • A01G3/021—Secateurs; Flower or fruit shears characterized by the arrangement of pivots
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/02—Secateurs; Flower or fruit shears
    • A01G2003/023—Secateurs; Flower or fruit shears with means for grasping or collecting the cut objects

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Environmental Sciences (AREA)
  • Scissors And Nippers (AREA)

Abstract

PURPOSE:To obtain pruning shears capable of cutting and pruning regardless of thickness and thinness of branches by curving a receiving blade and a cutting blade in the same direction and changing a knife angle of the receiving blade in a specific state. CONSTITUTION:A receiving blade 1 and a cutting blade 2 are curved in the same direction and a knife angle of the receiving blade 1 is changed gradually largely and smoothly with advance from the base part toward the tip part.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、同一方向に湾曲する受
刃と切刃とを、夫々有する一対の鋏構成部材を、支軸に
て回動自在に枢着して、太い枝を切り落としたり、果樹
やバラ等の剪定をしたりするのに用いる剪定鋏に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention rotatably pivots a pair of scissors constituting members, each having a receiving blade and a cutting blade that are curved in the same direction, on a spindle to cut off a thick branch. The present invention relates to pruning scissors used for pruning fruit trees and roses.

【０００２】[0002]

【従来の技術】一般に剪定鋏は、受刃側鋏構成部材に突
設した支軸を、切刃側鋏構成部材に設けた円形又は円弧
状の透孔に挿通して、これら一対の鋏構成部材が互いに
開閉しうるよう回動自在に枢着している。ところで、従
来の剪定鋏は、いずれも受刃の刃角が図５に示すごと
く、刃線に沿って基部の（イ）の状態から先端部の
（ハ）の状態に至るまで、常に一定な角度θに形成され
ている。2. Description of the Related Art Generally, pruning scissors have a pair of scissors constructed by inserting a support shaft projecting from the scissors constituting member on the receiving blade side into a circular or arc-shaped through hole provided on the scissors constituting member on the cutting blade side. The members are pivotally mounted so that they can be opened and closed with respect to each other. In the conventional pruning scissors, as shown in FIG. 5, the blade angle of the receiving blade is always constant along the blade line from the state of (a) at the base to the state of (c) at the tip. It is formed at an angle θ.

【０００３】[0003]

【発明が解決しょうとする課題】しかしながら、このよ
うに刃角が一定のものでは、比較的大径の被切断物を切
断する場合、被切断物に対応する受刃側で、かなり大き
な刃角を有しているため、刃先が被切断物に食い込み難
く、かつ切断に大きな労力を要すると共に、被切断物の
位置決めが困難で作業効率が著しく低下する。一方、被
切断物に対応する受刃側の刃角を被切断物に食い込み易
いような小さい刃角に設定した場合には、受刃先端が著
しく薄肉の先細となって折損しやすい等の問題が生じ
る。However, with such a constant blade angle, when cutting an object having a relatively large diameter, the blade edge corresponding to the object has a considerably large blade angle. Therefore, the cutting edge is difficult to bite into the object to be cut, a large amount of labor is required for cutting, and positioning of the object to be cut is difficult, resulting in a significant decrease in work efficiency. On the other hand, when the blade angle on the receiving blade side corresponding to the object to be cut is set to a small blade angle that easily bites into the object to be cut, the tip of the receiving blade becomes extremely thin and tapered, and it is easy to break. Occurs.

【０００４】本発明は、かかる課題を解消した剪定鋏を
提供することを目的とする。An object of the present invention is to provide pruning scissors which solves the above problems.

【０００５】[0005]

【課題を解決するための手段】本発明に係る剪定鋏は、
同一方向に湾曲する受刃１と切刃２とを、夫々有する一
対の鋏構成部材３，４を、支軸５にて回動自在に枢着し
たものにおいて、前記受刃１の刃角θが基部から先端部
になるにつれて次第に大きく、かつ滑らかに変化するよ
うに構成されていることを特徴とするものである。The pruning scissors according to the present invention are
When a pair of scissors constituting members 3 and 4 each having a receiving blade 1 and a cutting blade 2 which are curved in the same direction are pivotally mounted on a support shaft 5 in a rotatable manner, a blade angle θ of the receiving blade 1 Is configured so that it gradually increases and smoothly changes from the base to the tip.

【０００６】[0006]

【作用】しかして、本発明に係る剪定鋏の使用に際して
は、まず、あらかじめ、受刃１と切刃２との間に被切断
物たる果樹やバラ等の枝を装入するのである。次にこの
状態において、受刃１と切刃２とを、これら受刃１及び
切刃２に一体となる把持部６，７によって閉成させるこ
とにより、切断作業をなしうるのである。When using the pruning scissors according to the present invention, first of all, the branches such as fruit trees and roses, which are the objects to be cut, are inserted between the receiving blade 1 and the cutting blade 2. Then, in this state, the cutting operation can be performed by closing the receiving blade 1 and the cutting blade 2 by the gripping portions 6 and 7 integrated with the receiving blade 1 and the cutting blade 2.

【０００７】しかるに、切断開始時に被切断物が相対す
る受刃１の部位は、その刃角が図３（イ）に示すごとく
小さい鋭角θ１になっているので、容易にしかも深く、
受刃１が被切断物に食い込むことになり、被切断物に対
する位置決めが確実に行なわれる。また、この受刃１の
切断開始時に被切断物に相対する部位、即ち被切断物に
対する食い込みが開始される部位は、支軸５から至近距
離にあるため、比較的小さな力でより効果的で、かつ確
実に食い込み機能を発揮させることができ、更に、受刃
先端部においては、その刃角が大きい鋭角θ３になって
いるので、刃先部分が厚肉となり、折損を生じることな
く小枝等の剪定作業を容易になし得るHowever, at the portion of the receiving blade 1 that the object to be cut faces at the start of cutting, the blade angle is a small acute angle θ 1 as shown in FIG.
The receiving blade 1 bites into the object to be cut, and the positioning with respect to the object to be cut is reliably performed. Further, since the portion of the receiving blade 1 facing the object to be cut at the start of cutting, that is, the portion where the cutting into the object to be cut is located is close to the spindle 5, it is more effective with a relatively small force. In addition, the bite function can be surely exerted, and the blade angle at the tip of the receiving blade is a large acute angle θ 3 , so that the blade edge portion becomes thick and the twigs etc. do not break. Pruning work can be done easily

【０００８】[0008]

【発明の効果】本発明に係る剪定鋏は、以上の構成及び
作用を有するから、太い枝の場合にも、また細い枝の場
合にも、自由自在にしかも、極めて容易に枝類の切断や
剪定作業を行なうこができ、また、比較的太い枝や材質
の堅い枝等でも手指の痛みや著しい疲労を伴うことなく
容易に切断作業を完遂でき、更に、受刃先端部を厚肉に
して十分な強度を保たせることができるので、この部分
の折損の事態を大巾に減少させうる効果を奏する。Since the pruning scissors according to the present invention have the above-mentioned constitutions and functions, they can freely and extremely easily cut branches regardless of whether they are thick branches or thin branches. Pruning work can be performed, and even relatively thick branches or hard material branches can be easily cut without causing finger pain or significant fatigue, and the tip of the receiving blade can be made thicker. Since sufficient strength can be maintained, the effect of breaking this part can be greatly reduced.

【０００９】[0009]

【実施例】以下、本発明の実施例を図面に基づいて具体
的に説明する。図１〜図４は、本発明に係る剪定鋏の一
実施例を示すもので、図１は刃が閉じた状態を、また図
２は刃が最も開いた状態を示す正面図、図３は受刃の部
分拡大図、図４は図３の受刃の一点鎖線Ａ−Ａ、Ｂ−
Ｂ、Ｃ−Ｃ線に沿う拡大断面図、図５は従来の剪定鋏の
受刃における夫々図４に相当する部分の拡大断面図であ
る。Embodiments of the present invention will be specifically described below with reference to the drawings. 1 to 4 show an embodiment of the pruning scissors according to the present invention. FIG. 1 is a front view showing a state in which a blade is closed, and FIG. 2 is a front view showing a state in which the blade is most open, and FIG. FIG. 4 is a partially enlarged view of the blade, and FIG. 4 is a dashed-dotted line AA, B- of the blade of FIG.
FIG. 5 is an enlarged cross-sectional view taken along the lines B and C-C, and FIG. 5 is an enlarged cross-sectional view of a portion corresponding to FIG. 4 in the conventional blade of the pruning scissors.

【００１０】３，４は、夫々把持部６，７の先端部に炭
素工具鋼あるいは高速度鋼からなる受刃１及び切刃２を
備えた一対の鋏構成部材で、これら両部材３，４は交差
状として開閉しうるよう支軸５で枢着されている。即
ち、この支軸５は、一方の受刃１側に突設した支軸５を
切刃２側に設けた透孔（図示なし）に挿通し、これら一
対の鋏構成部材３，４が、互いに開閉しうるように回動
自在に支持せしめた後、支軸５先端に螺設したねじにナ
ットを螺合させることにより取着している。Reference numerals 3 and 4 are a pair of scissors constituting members having a cutting edge 1 and a cutting edge 2 made of carbon tool steel or high speed steel at the tips of the gripping portions 6 and 7, respectively. Are pivotally attached by a support shaft 5 so that they can be opened and closed in a cross shape. That is, the support shaft 5 is inserted into a through hole (not shown) provided on the cutting blade 2 side so that the support shaft 5 projecting from the one receiving blade 1 side is inserted, and the pair of scissors constituting members 3 and 4 are After being rotatably supported so that they can be opened and closed with each other, the nuts are attached by screwing the nuts to the screws screwed at the tip of the support shaft 5.

【００１１】前記受刃１、切刃２には、錆を防ぎ、対摩
耗性を向上させるべく硬質クロムメッキを施して刃体表
面を硬くしている。切刃２は必要に応じて、従来から周
知されているように刃先部分を三角形状にカットした裏
小刃を形成し、切断作用の向上を図ることができる。The receiving blade 1 and the cutting blade 2 are hard chrome plated to harden the surface of the blade body in order to prevent rust and improve wear resistance. If necessary, the cutting blade 2 can be formed into a back small blade whose tip portion is cut into a triangular shape, as conventionally known, to improve the cutting action.

【００１２】前記両部材３，４の間にはスプリング９が
介設されており、常時は、これら両部材を開き勝手にな
るように付勢されている。また、把持部６，７の尾端部
には夫々互いに係脱自在な一対のストッパー部材１０，
１１が取付けられており、前記スプリング９に抗して両
部材３，４を閉じたとき、一方のリング状に折曲された
ストッパー部材１０を、他方の切欠状に切開したストッ
パー部材１１に装入係合させることによって、図１に示
すごとく鋏の閉成された状態が保たれるのである。A spring 9 is provided between the two members 3 and 4 and normally urges them so that they can be opened freely. In addition, a pair of stopper members 10, which can be engaged and disengaged with each other, are provided at the tail ends of the grips 6, 7, respectively.
11 is attached, and when both the members 3 and 4 are closed against the spring 9, the stopper member 10 bent in one ring shape is attached to the stopper member 11 cut in the other notch shape. By engaging and disengaging the scissors, the closed state is maintained as shown in FIG.

【００１３】前記受刃１は、その摺接面との関係でなす
角、即ち刃角が基部から先端部になるにつれて次第に大
きく、かつ滑らかに変化するように構成されている。更
にこの状態を、図４において詳述すると次のようにな
る。受刃１の基部においては、同図（イ）θ１にて示す
ごとく、被切断物１３に対する食い込みが容易なように
鋭利な刃角（約３０°）となす。受刃１の中腹部におい
ては、同図（ロ）にて示すごとく、ほぼ中程度の鋭角を
もつ刃角θ２（約４５°）となし、前記基部から先端部
になるにつれて次第に大きな刃角を形成するように変化
させると共に、刃先によって形成される曲線が段部の生
じない極めて滑らかな曲線でもって湾曲形成されるよう
になす。そして、必要によっては、図３において二点鎖
線で示すごとき位置決めを確実ならしめうる切欠き１２
を設けてもよい。The receiving blade 1 is constructed so that the angle formed by the relationship with the sliding contact surface, that is, the blade angle, gradually increases and smoothly changes from the base to the tip. Further, this state will be described in detail with reference to FIG. The base of the blade 1 has a sharp blade angle (about 30 °) so as to easily bite into the object to be cut 13, as indicated by θ 1 in FIG. In the middle part of the receiving blade 1, as shown in FIG. 2B, the blade angle θ 2 (about 45 °) has a substantially moderate acute angle, and the blade angle gradually increases from the base to the tip. And the curved line formed by the cutting edge is curved with an extremely smooth curved line without step portions. And, if necessary, the notch 12 that can ensure the positioning as shown by the chain double-dashed line in FIG.
May be provided.

【００１４】また、受刃１の先端部においては、同図
（ハ）にて示すごとく、鈍い鋭角をもつ刃角θ３（約６
０°）となしている。したがって、通常受刃の先端部が
先細となるこのようなタイプのものでは、強度が十分で
ないために、とかく樹木等に当たって折損しやすいが、
本発明においては、十分な強度を保たせることができる
のである。（以上の括弧内はいずれも本実施例における
刃角を示す。）At the tip of the receiving blade 1, a blade angle θ 3 (about 6) having a blunt acute angle as shown in FIG.
0 °). Therefore, in such a type in which the tip of the receiving blade is usually tapered, since the strength is not sufficient, it is easy to break by hitting a tree or the like,
In the present invention, sufficient strength can be maintained. (All of the above parentheses indicate the blade angle in this embodiment.)

【００１５】なお、本実施例においては、特に大きな食
い込み力が働く受刃１の基部は先端部よりも刃丈が大き
く形成されているので、大きな径の被切断物をも切断で
きることとなる。また、受刃１、切刃２の素材を高速度
鋼のような硬度の高い金属を採用することによって刃角
の鋭角の度合いを増すこともできる。In this embodiment, since the base of the receiving blade 1 on which a particularly large biting force acts has a blade length larger than that of the tip, it is possible to cut an object having a large diameter. Moreover, the degree of sharpness of the blade angle can be increased by adopting a metal having a high hardness such as high speed steel as the material of the receiving blade 1 and the cutting blade 2.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明に係る剪定鋏全体を示す正面図で、刃が
閉じた状態を示すものである。FIG. 1 is a front view showing the entire pruning scissors according to the present invention, showing a state in which a blade is closed.

【図２】図１の刃が最も開いた状態を示す正面図であ
る。FIG. 2 is a front view showing a state where the blade of FIG. 1 is most opened.

【図３】受刃の部分拡大図である。FIG. 3 is a partially enlarged view of a receiving blade.

【図４】（イ）（ロ）（ハ）は、それぞれ図３における
受刃の一点鎖線Ａ−Ａ、Ｂ−Ｂ、Ｃ−Ｃ線に沿う拡大断
面図である。4 (a), (b), and (c) are enlarged cross-sectional views taken along alternate long and short dash lines AA, BB, and CC of the blade in FIG. 3, respectively.

【図５】従来の剪定鋏の受刃における夫々図４に相当す
る部分の拡大断面図である。FIG. 5 is an enlarged cross-sectional view of a portion corresponding to FIG. 4 in the receiving blade of the conventional pruning scissors.

【符号の説明】[Explanation of symbols]

１ 受刃 ２ 切刃 ３，４ 鋏構成部材 ５ 支軸 ６，７ 把持部 ８ ナット ９ スプリング １０，１１ ストッパー部材 １２ 切欠き １３ 被切断物 θ 角度 θ１ 切断開始時に被切断物が相対する受刃１の部
位の刃角 θ２ 受刃の中腹部Ｂ−Ｂ面での刃角 θ３ 受刃の先端部Ｃ−Ｃ面での刃角1 Receiving blade 2 Cutting edge 3,4 Scissors component member 5 Support shaft 6,7 Grip part 8 Nut 9 Spring 10, 11 Stopper member 12 Notch 13 Object to be cut θ Angle θ 1 Object to be cut at the start of cutting blade angle at the tip portion C-C plane of the blade angle theta 3 receiving blade of abdominal B-B plane in the blade angle theta 2 receiving blade portion of the blade 1

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 同一方向に湾曲する受刃１と切刃２と
を、夫々有する一対の鋏構成部材３，４を、支軸５にて
回動自在に枢着したものにおいて、前記受刃１の刃角θ
が基部から先端部になるにつれて次第に大きく、かつ滑
らかに変化するように構成されていることを特徴とする
剪定鋏。1. A pair of scissors constituting members 3, 4 each having a receiving blade 1 and a cutting blade 2 which are curved in the same direction are rotatably mounted on a support shaft 5 to provide the receiving blade. Blade angle θ of 1
A pruning scissor characterized in that it is configured to gradually increase and smoothly change from the base to the tip. 【請求項２】 切刃２の適所に、被切断物１３の位置決
めを容易ならしめうる切欠き１２を設けたことを特徴と
する請求項１記載の剪定鋏。2. The pruning scissors according to claim 1, wherein a notch 12 is provided at an appropriate position of the cutting blade 2 so as to facilitate positioning of an object 13 to be cut.
JP4054502A 1992-01-28 1992-01-28 Pruning shears Expired - Fee Related JP2729721B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP4054502A JP2729721B2 (en) 1992-01-28 1992-01-28 Pruning shears
TW081109831A TW204295B (en) 1992-01-28 1992-12-08 Shears
KR1019930000951A KR0156015B1 (en) 1992-01-28 1993-01-27 The pruning shears

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4054502A JP2729721B2 (en) 1992-01-28 1992-01-28 Pruning shears

Publications (2)

Publication Number Publication Date
JPH05207820A true JPH05207820A (en) 1993-08-20
JP2729721B2 JP2729721B2 (en) 1998-03-18

Family

ID=12972410

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4054502A Expired - Fee Related JP2729721B2 (en) 1992-01-28 1992-01-28 Pruning shears

Country Status (3)

Country Link
JP (1) JP2729721B2 (en)
KR (1) KR0156015B1 (en)
TW (1) TW204295B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001008323A (en) * 1999-06-18 2001-01-12 Kyowa Exeo Corp Method for opening hold for branching wirings in pipe line
JP2016182724A (en) * 2015-03-26 2016-10-20 セイコーエプソン株式会社 Printing device
WO2021215291A1 (en) * 2020-04-21 2021-10-28 アルスコーポレーション株式会社 Electric pruning shears

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001008323A (en) * 1999-06-18 2001-01-12 Kyowa Exeo Corp Method for opening hold for branching wirings in pipe line
JP2016182724A (en) * 2015-03-26 2016-10-20 セイコーエプソン株式会社 Printing device
WO2021215291A1 (en) * 2020-04-21 2021-10-28 アルスコーポレーション株式会社 Electric pruning shears
JP2021170956A (en) * 2020-04-21 2021-11-01 アルスコーポレーション株式会社 Electric pruning shears
CN115413221A (en) * 2020-04-21 2022-11-29 爱丽斯株式会社 Electric pruning scissors
EP4140290A4 (en) * 2020-04-21 2024-05-01 ARS Corporation Electric pruning shears

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TW204295B (en) 1993-04-21
KR0156015B1 (en) 1998-10-01
JP2729721B2 (en) 1998-03-18
KR930016007A (en) 1993-08-26

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