JPH0365131B2 - - Google Patents
Info
- Publication number
- JPH0365131B2 JPH0365131B2 JP58231568A JP23156883A JPH0365131B2 JP H0365131 B2 JPH0365131 B2 JP H0365131B2 JP 58231568 A JP58231568 A JP 58231568A JP 23156883 A JP23156883 A JP 23156883A JP H0365131 B2 JPH0365131 B2 JP H0365131B2
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- grip
- resin films
- mold part
- hollow mold
- 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
- 229920003002 synthetic resin Polymers 0.000 claims description 17
- 239000000057 synthetic resin Substances 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 5
- 239000007779 soft material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 241001494496 Leersia Species 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Landscapes
- Harvester Elements (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は回転刃を回転自在に支持する支持体と
エンジンとを連結する連結管またはハンドルに固
着する刈払機のグリツプの製造方法に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a grip for a brush cutter that is fixed to a handle or a connecting pipe that connects an engine to a support that rotatably supports a rotary blade.
従来、この種の刈払機のグリツプはエンジンに
よる振動を吸収するためにゴム等の弾性材料で製
造されていたが、強度を保持しつつ、充分な防振
効果を得るためにはゴムの重量が大きくなり、ま
た製造価格が高くなるなどの欠点があつた。 Conventionally, grips for this type of brush cutter have been made of elastic materials such as rubber to absorb vibrations caused by the engine, but in order to maintain strength and obtain a sufficient vibration-damping effect, the weight of the rubber must be increased. It had drawbacks such as increased size and higher manufacturing cost.
本発明は、上下に重ね合わせた平面状の合成樹
脂膜を予め加熱し、内部に中空型部を形成する上
下の金型により外周縁部を圧着、挾持し、この上
下の合成樹脂膜の間に空気を圧入して、中空型部
に対応する形状に成形せしめるところの、いわゆ
るブロー成形によつて製造し、しかも、この上下
の合成樹脂膜をそれぞれ２層として、それぞれの
外側の層を軟質の材料で形成し、それぞれの内側
の層を硬質の材料で形成せしめることにより、グ
リツプを製造容易で、しかも軽量に設けることが
できるとともに、内側の硬質の材料によつて強度
を保持し、外側の軟質の材料によつて振動を緩衝
しようとするものである。 In the present invention, planar synthetic resin films stacked one on top of the other are heated in advance, and the outer peripheral edges are crimped and sandwiched between upper and lower molds that form a hollow mold part, and the space between the upper and lower synthetic resin films is It is manufactured by so-called blow molding, in which air is injected into the mold to form it into a shape corresponding to the hollow mold part, and the upper and lower synthetic resin films are made of two layers each, with the outer layer being a soft one. By forming each inner layer with a hard material, the grip can be manufactured easily and lightweight, and the hard inner layer maintains strength while the outer layer is made of a hard material. The idea is to dampen vibrations using a soft material.
以下、図面を用いて本発明の１実施例について
詳細な説明を行なう。 Hereinafter, one embodiment of the present invention will be described in detail using the drawings.
図において、１は回転刃３を回転自在に支持す
る支持体５とエンジン７とを連結する連結管であ
る。９は連結管１に固着したハンドルで、その先
端にはグリツプ１１が装着されている。１３はハ
ンドル９に固着されたスロツトルレバーである。
１５は連結管１に固着したグリツプである。 In the figure, 1 is a connecting pipe that connects a support 5 that rotatably supports a rotary blade 3 and an engine 7. Reference numeral 9 denotes a handle fixed to the connecting pipe 1, and a grip 11 is attached to the tip of the handle. 13 is a throttle lever fixed to the handle 9.
15 is a grip fixed to the connecting pipe 1.
グリツプ１５はつぎのように成形されている。
すなわち、上下の重ね合わせたそれぞれ平面状の
２層の上部合成樹脂膜１７，１９と下部合成樹脂
膜２１，２３とを予め加熱し、内部にグリツプ１
５の外形に対応する中空型部２５を形成する上下
の金型２７，２９により外周縁部を圧着し、挾持
し、この間に空気注入管３１を挿入して空気を圧
入すると、上部合成樹脂膜１７，１９と下部合成
樹脂２１，２３とは中空型部２５の内面に圧着、
成形される。この合成樹脂膜１７，１９と２１，
２３の外側の層１７，２１は軟質の材料で形成
し、内側の層１９，２３は硬質の材料で形成され
ている。こうして形成されたものを金型２７，２
９から取り外して連結管１の貫通する位置に孔を
切り抜いて設けるものである。なお、グリツプ１
１においては前述と同様に形成し、孔を１方だけ
切り抜いて成形するものである。 The grip 15 is shaped as follows.
That is, the upper and lower two planar synthetic resin films 17 and 19 and the lower synthetic resin films 21 and 23, which are stacked one on top of the other, are heated in advance, and the grip 1 is placed inside them.
The outer periphery is crimped and clamped by upper and lower molds 27 and 29 that form a hollow mold part 25 corresponding to the outer shape of 5, and an air injection pipe 31 is inserted between them to pressurize air. 17, 19 and lower synthetic resins 21, 23 are crimped to the inner surface of the hollow mold part 25,
molded. These synthetic resin films 17, 19 and 21,
The outer layers 17 and 21 of 23 are made of a soft material, and the inner layers 19 and 23 are made of a hard material. The thus formed mold 27, 2
9 and cut out a hole at a position where the connecting pipe 1 passes through. In addition, grip 1
In No. 1, it is formed in the same manner as described above, and the hole is cut out on only one side.
また合成樹脂膜の外側の層１７，２１と内側の
層１９，２３とを、それぞれ円筒状に一体に形成
し、これらを内外に嵌合したものを重ね合わせた
まま偏平にして全周縁部を金型に挾持、成形して
もよい。 In addition, the outer layers 17, 21 and the inner layers 19, 23 of the synthetic resin membrane are each integrally formed into a cylindrical shape, and these are fitted inside and out, and then flattened while being overlapped, the entire periphery is formed. It may be held in a mold and molded.
以上の実施例において、作業者はエンジン７を
始動して回転刃を回転させて、左手でグリツプ１
１を握り、右手でグリツプ１５を握つて回転刃３
により草等の刈払作業を行なうものである。 In the above embodiment, the operator starts the engine 7, rotates the rotary blade, and grips the grip 1 with his left hand.
1, hold the grip 15 with your right hand, and remove the rotary blade 3.
This is used to cut grass, etc.
本発明は、請求の範囲に記載のとおりであるか
ら、グリツプの強度を保持してしかも振動を緩衝
することができ、製造容易で安価に製作できると
ともに重量が軽減できるものである。 Since the present invention is as described in the claims, it is possible to maintain the strength of the grip and damp vibrations, and it is easy to manufacture and can be manufactured at low cost, and the weight can be reduced.
また、平面状の２層に製作された合成樹脂板を
適宜な大きさに切断した素材を使用するので、素
材の製作が容易で、グリツプの形状の変化に対し
て対応し易い。 Furthermore, since the material is made by cutting a planar two-layer synthetic resin plate into an appropriate size, the material is easy to manufacture and can easily accommodate changes in the shape of the grip.
なお、本発明は前述の実施例に限定されるもの
ではなく、他の態様においても実施しうるもので
ある。また、請求の範囲に示す符号は本発明の技
術的範囲を限定するものではない。 It should be noted that the present invention is not limited to the above-mentioned embodiments, but can be implemented in other embodiments as well. Further, the symbols shown in the claims do not limit the technical scope of the present invention.
第１図は本発明に係るグリツプを備えた刈払機
の斜視説明図、第２図は本発明に係るグリツプの
側断面説明図、第３図は本発明に係るグリツプの
製造工程における側断面説明図である。
１７，１９……上部合成樹脂膜、２１，２３…
…下部合成樹脂膜、２５……中空型部、２７，２
９……金型。
Fig. 1 is a perspective explanatory view of a brush cutter equipped with a grip according to the present invention, Fig. 2 is an explanatory side cross-sectional view of the grip according to the present invention, and Fig. 3 is an explanatory side cross-sectional view of the grip according to the present invention in the manufacturing process. It is a diagram. 17, 19... Upper synthetic resin film, 21, 23...
...Lower synthetic resin membrane, 25...Hollow mold part, 27,2
9... Mold.
Claims (1)
部合成樹脂膜１７，１９と下部合成樹脂膜２１，
２３を予め加熱し、内部に中空型部２５を形成す
る上下の金型２７，２９により外周縁部を圧着、
挟持し、前記上部合成樹脂膜１７，１９と下部合
成樹脂膜２１，２３との間に空気を圧入して前記
中空型部２５に対応する形状に成形して設けると
ともに、前記上部合成樹脂膜１７，１９と下部合
成樹脂膜２１，２３のそれぞれの外側の層１７，
２１を軟質の材料で形成し、それぞれの内側の層
１９，２３を硬質の材料で形成してなる刈払機の
グリツプの製造方法。1 Upper synthetic resin films 17, 19 and lower synthetic resin films 21, which are two planar layers stacked one above the other,
23 is heated in advance, and the outer peripheral edge is crimped with upper and lower molds 27 and 29 that form a hollow mold part 25 inside.
The upper synthetic resin membrane 17 is sandwiched between the upper synthetic resin membranes 17 and 19 and the lower synthetic resin membranes 21 and 23 by pressurizing air between them to form a shape corresponding to the hollow mold part 25. , 19 and the outer layer 17 of each of the lower synthetic resin films 21 and 23,
A method for manufacturing a grip for a brush cutter, in which the grip 21 is made of a soft material, and the inner layers 19 and 23 are made of a hard material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58231568A JPS60126009A (en) | 1983-12-09 | 1983-12-09 | Grip of reamer and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58231568A JPS60126009A (en) | 1983-12-09 | 1983-12-09 | Grip of reamer and its production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60126009A JPS60126009A (en) | 1985-07-05 |
| JPH0365131B2 true JPH0365131B2 (en) | 1991-10-09 |
Family
ID=16925549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58231568A Granted JPS60126009A (en) | 1983-12-09 | 1983-12-09 | Grip of reamer and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60126009A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49120960A (en) * | 1973-03-23 | 1974-11-19 | ||
| JPS5625848B2 (en) * | 1975-03-19 | 1981-06-15 | ||
| JPS5744825U (en) * | 1980-08-27 | 1982-03-12 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5625848U (en) * | 1979-08-03 | 1981-03-10 |
-
1983
- 1983-12-09 JP JP58231568A patent/JPS60126009A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49120960A (en) * | 1973-03-23 | 1974-11-19 | ||
| JPS5625848B2 (en) * | 1975-03-19 | 1981-06-15 | ||
| JPS5744825U (en) * | 1980-08-27 | 1982-03-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60126009A (en) | 1985-07-05 |
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