JP2005194777A - Handrail device for construction machine - Google Patents

Handrail device for construction machine Download PDF

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Publication number
JP2005194777A
JP2005194777A JP2004002205A JP2004002205A JP2005194777A JP 2005194777 A JP2005194777 A JP 2005194777A JP 2004002205 A JP2004002205 A JP 2004002205A JP 2004002205 A JP2004002205 A JP 2004002205A JP 2005194777 A JP2005194777 A JP 2005194777A
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Prior art keywords
handrail
fixed
handrail body
construction machine
handrail device
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JP2004002205A
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JP4062535B2 (en
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Shinji Shin
真司 新
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Sumitomo SHI Construction Machinery Co Ltd
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Sumitomo SHI Construction Machinery Co Ltd
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Priority to JP2004002205A priority Critical patent/JP4062535B2/en
Publication of JP2005194777A publication Critical patent/JP2005194777A/en
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Publication of JP4062535B2 publication Critical patent/JP4062535B2/en
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0833—Improving access, e.g. for maintenance, steps for improving driver's access, handrails

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To reduce cost by eliminating work of welding a fixed part and crushing it in flat shape while suppressing transmission of vibration to a handrail body. <P>SOLUTION: Bent parts 36, 37 are formed at both ends of a handrail body 31 formed of a pipe material, and both sides of the bent parts 36, 37 are fixed in two directions by clamps 32. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は建設機械のハンドレール装置に関するものであり、特に、機械からの振動を抑止したハンドレール装置に関するものである。   The present invention relates to a handrail device for a construction machine, and more particularly to a handrail device that suppresses vibration from the machine.

従来、此種建設機械のハンドレール装置としては、複数本の水平部材と脚部材とからなり、同じ側の脚部材の下端を単一の取付用台板に溶接により固定し、この取付用台板をボディ等の取付相手部材にボルト締めにて固定している（例えば、特許文献１参照）。   Conventionally, as a handrail device of this kind of construction machine, it is composed of a plurality of horizontal members and leg members, and the lower end of the leg member on the same side is fixed to a single mounting base plate by welding. The plate is fixed to an attachment member such as a body by bolting (for example, see Patent Document 1).

また、ハンドレール本体の少なくとも一端部を偏平形状に潰し、この偏平部分を取付相手部材へ密着させてねじにより固定し、該ねじによる固定部分より軸方向離間位置に嵌合された弾性部材により成形された筒体と、該筒体の外周面を保持して取付相手部材に固定する保持体（クランプ）とを具備したハンドレール装置も知られている（例えば、特許文献２参照）。
特開平４−２９７６５３号公報 特開２００２−６１２３１号公報 Further, at least one end portion of the handrail body is crushed into a flat shape, the flat portion is brought into close contact with a mounting partner member and fixed with a screw, and molded by an elastic member fitted to a position spaced apart in the axial direction from the fixed portion by the screw There is also known a handrail device including a cylindrical body and a holding body (clamp) that holds an outer peripheral surface of the cylindrical body and fixes the cylindrical body to an attachment counterpart member (for example, see Patent Document 2).
JP-A-4-297653 JP 2002-61231 A

特許文献１記載の発明は、脚部材の下端を取付用台板に溶接により固定し、該取付用台板を取付相手部材へボルト締めしているので、機体の振動が直接ハンドレール本体に伝達し、ハンドレール本体の根元部分に高荷重がかかってひび割れなどの破損が生じるという不具合がある。また、脚部材の下端を取付用台板に溶接する作業が煩雑でコスト高の要因となっている。   In the invention described in Patent Document 1, the lower end of the leg member is fixed to the mounting base plate by welding, and the mounting base plate is bolted to the mounting counterpart member, so that the vibration of the fuselage is transmitted directly to the handrail body. However, there is a problem in that a high load is applied to the base portion of the handrail body and damage such as cracking occurs. In addition, the work of welding the lower end of the leg member to the mounting base plate is a complicated and expensive factor.

特許文献２記載の発明は、ハンドレール本体の端部をねじによる固定と、弾性部材の筒体を介して保持部材による固定とを併用しているため、前記特許文献１記載のハンドレール装置よりも振動の伝達は抑止される。しかし、偏平端部を取付相手部材へ密着させてねじ止めするため、機体からの振動の伝達は解消し得ない。また、ハンドレール本体の端部を偏平形状に潰す作業が必要であり、やはり、コスト高の要因となっている。   The invention described in Patent Document 2 uses both the fixing of the end portion of the handrail body by a screw and the fixing by the holding member via the cylindrical body of the elastic member. However, the transmission of vibration is suppressed. However, since the flat end is brought into close contact with the mounting counterpart member and screwed, transmission of vibration from the airframe cannot be eliminated. Moreover, the operation | work which crushes the edge part of a handrail main body in a flat shape is required, and also becomes a factor of a cost increase.

そこで、ハンドレール本体への振動の伝達を抑止しつつ、固定部分を溶接したり偏平形状に潰す作業をなくしてコストダウンを図るために解決すべき技術的課題が生じてくるのであり、本発明はこの課題を解決することを目的とする。   Thus, there is a technical problem to be solved in order to reduce the cost by welding the fixed portion or eliminating the operation of crushing it into a flat shape while suppressing the transmission of vibration to the handrail body. Aims to solve this problem.

本発明は上記目的を達成するために提案されたものであり、請求項１記載の発明は、パイプ材にて形成されたハンドレール本体の端部をクランプにて固定した建設機械のハンドレール装置を提供する。   The present invention has been proposed to achieve the above object, and the invention according to claim 1 is a handrail device for a construction machine in which an end of a handrail body formed of a pipe material is fixed by a clamp. I will provide a.

この構成によれば、前記ハンドレールの端部がクランプにて固定されるため、端部をボルトにて固定する構成と比較して、機体からの振動が直接ハンドレール本体に伝達されない。   According to this configuration, since the end portion of the handrail is fixed by the clamp, the vibration from the machine body is not directly transmitted to the handrail body as compared with the configuration in which the end portion is fixed by the bolt.

請求項２記載の発明は、上記ハンドレール本体の端部を屈曲し、該屈曲部分の両側をクランプにて固定し、且つ、クランプの嵌め込み方向を異なる２方向とした建設機械のハンドレール装置を提供する。   According to a second aspect of the present invention, there is provided a handrail device for a construction machine, wherein the end portion of the handrail body is bent, both sides of the bent portion are fixed with clamps, and the fitting directions of the clamps are two different directions. provide.

この構成によれば、ハンドレールの屈曲部分の両側を異なる２方向にクランプにて固定するので、取付強度が高くなる。   According to this configuration, both sides of the bent portion of the handrail are fixed by the clamps in two different directions, so that the mounting strength is increased.

請求項１記載の発明は、ハンドレール本体の端部をクランプにて固定したので、機体からの振動が直接ハンドレール本体に伝達されず、ハンドレール本体の固定部分にひび割れなどの破損が生じることを防止できる。また、従来型に於ける固定部分の溶接作業や偏平形状に潰す作業を省略でき、作業工数の削減によるコストダウンを図ることができる。   According to the first aspect of the present invention, since the end of the handrail body is fixed by the clamp, the vibration from the airframe is not directly transmitted to the handrail body, and the fixing portion of the handrail body is damaged such as a crack. Can be prevented. Further, it is possible to omit the work of welding the fixed portion and the work of crushing into a flat shape in the conventional type, and the cost can be reduced by reducing the number of work steps.

請求項２記載の発明は、ハンドレール本体の端部を屈曲してその両側を異なる２方向にクランプで固定したので、取付強度が高くなってハンドレール装置の安全性並びに耐久性の向上に寄与できる。   In the invention of claim 2, since the end portion of the handrail body is bent and both sides thereof are clamped in two different directions, the mounting strength is increased, contributing to improvement in safety and durability of the handrail device. it can.

以下、本発明に係る建設機械のハンドレール装置について、好適な実施例をあげて説明する。ハンドレール本体への振動の伝達を抑止しつつ、固定部分を溶接したり偏平形状に潰す作業をなくしてコストダウンを図るという目的を、パイプ材にて形成されたハンドレール本体の端部をクランプにて固定したことにより実現した。   Hereinafter, a handrail device for a construction machine according to the present invention will be described with reference to preferred embodiments. Clamps the end of the handrail body made of pipe material for the purpose of reducing the cost by suppressing the transmission of vibration to the handrail body and eliminating the work of welding the fixed part or crushing it into a flat shape Realized by fixing with.

図１は建設機械の一例として油圧ショベル１０を示し、下部走行体１１の上に旋回機構１２を介して上部旋回体１３が旋回自在に載置されている。上部旋回体１３にはその前方一側部にキャブ１４が設けられ、且つ、前方中央部にブーム１５が俯仰可能に取り付けられている。更に、ブーム１５の先端にアーム１６が上下回動自在に取り付けられ、該アーム１６の先端にバケット１７が取り付けられている。   FIG. 1 shows a hydraulic excavator 10 as an example of a construction machine, and an upper swing body 13 is mounted on a lower traveling body 11 via a swing mechanism 12 so as to be rotatable. The upper swing body 13 is provided with a cab 14 on one front side thereof, and a boom 15 is attached to the front center portion so as to be able to be raised and lowered. Further, an arm 16 is attached to the tip of the boom 15 so as to be rotatable up and down, and a bucket 17 is attached to the tip of the arm 16.

そして、上部旋回体１３の後部にエンジン１８を搭載し、上部旋回体１３の前方他側部に燃料タンク１９が設けられ、これらはハウスカバー２０にて被蔽されている。また、燃料タンク１９の前部にはツールボックス２１が設けられており、上部旋回体１３の下部フレーム２２の前部には機体から前方へステップ２３を突設してある。更に、前記燃料タンク１９の上部からツールボックス２１及び前記ステップ１８にかけて、それらの右側部（図１に於いて紙面の手前側）にハンドレール装置３０が配設されている。   An engine 18 is mounted on the rear part of the upper swing body 13, and a fuel tank 19 is provided on the other front side of the upper swing body 13, and these are covered with a house cover 20. In addition, a tool box 21 is provided at the front of the fuel tank 19, and a step 23 is projected forward from the machine body at the front of the lower frame 22 of the upper swing body 13. Further, a handrail device 30 is disposed on the right side (the front side of the page in FIG. 1) of the fuel tank 19 from the upper part to the tool box 21 and the step 18.

図２に示すように、前記ツールボックス２１の上面には開閉可能な蓋２４が設けられ、該蓋２４に設けられた取っ手２５を把持して蓋２４を開放することにより、ツールボックス２１内のツールを出し入れすることができる。   As shown in FIG. 2, an openable / closable lid 24 is provided on the upper surface of the tool box 21. By grasping a handle 25 provided on the lid 24 and opening the lid 24, the inside of the tool box 21 is provided. Tools can be taken in and out.

一方、前記ハンドレール装置３０は、ハンドレール本体３１と、該ハンドレール本体３１の端部を固定するためのクランプ３２と、このクランプ３２を取付相手部材へ固定するためのボルト３３とから構成される。また、ハンドレール本体３１は、垂直に形成された立ち上がり部３４と、該立ち上がり部３４の上端から斜め前下方へ向かって凸状に湾曲された湾曲部３５と、前記立ち上がり部３４の端部を左右方向へ略直角に屈曲した屈曲部３６と、前記湾曲部３５の端部を下部フレーム２２の下面に沿って後方向へ略直角に屈曲した屈曲部３７とを具備している。   On the other hand, the handrail device 30 includes a handrail body 31, a clamp 32 for fixing the end portion of the handrail body 31, and a bolt 33 for fixing the clamp 32 to an attachment member. The In addition, the handrail body 31 includes a rising portion 34 formed vertically, a curved portion 35 curved in a convex shape from the upper end of the rising portion 34 obliquely forward and downward, and an end portion of the rising portion 34. A bent portion 36 that is bent substantially at right angles in the left-right direction and a bent portion 37 that is bent at a substantially right angle in the rear direction along the lower surface of the lower frame 22 are provided.

前記立ち上がり部３４側の屈曲部３６は、その屈曲部分の両側をクランプ３２にて固定されており、且つ、夫々のクランプ３２の嵌め込み方向を異なる２方向（この場合は略直角）としている。また、前記湾曲部３５側の屈曲部３７も、その屈曲部分の両側（下部フレームの前端面と下面）をクランプ３２にて固定されており、且つ、それぞれのクランプ３２の嵌め込み方向を異なる２方向（この場合も略直角）としている。尚、夫々のクランプ３２とハンドレール本体３１との間には、弾性部材（図示せず）が介装されている。   The bent portion 36 on the rising portion 34 side is fixed at both sides of the bent portion with clamps 32, and the fitting directions of the respective clamps 32 are two different directions (in this case, substantially right angles). In addition, the bent portion 37 on the curved portion 35 side is also fixed to both sides (the front end surface and the lower surface of the lower frame) of the bent portion with clamps 32, and the fitting directions of the respective clamps 32 are different in two directions. (Also in this case, substantially right angle). Note that an elastic member (not shown) is interposed between each clamp 32 and the handrail body 31.

このように、ハンドレール本体３１の両端部を機体へ直接ボルト締めせず、弾性部材を介してクランプ３２にて固定したことにより、機体の振動がハンドレール本体３１に伝達されず、ハンドレール本体３１の固定部分にひび割れなどの破損が生じることを防止できる。そして、従来型に於ける固定部分の溶接作業や偏平形状に潰す作業を省略できるので、作業工数の削減によるコストダウンを図ることができる。   Thus, the both ends of the handrail body 31 are not bolted directly to the airframe, but are fixed by the clamp 32 via the elastic member, so that the vibration of the airframe is not transmitted to the handrail body 31 and the handrail body 31 It is possible to prevent damage such as cracks from occurring in the fixed portion of 31. And since the welding operation of the fixed part and the operation of crushing into a flat shape in the conventional type can be omitted, the cost can be reduced by reducing the number of work steps.

また、クランプ３２の嵌め込み方向を異にしたので、ハンドレール本体３１の取付強度が高くなり、ハンドレール本体３１のぐらつき等が生じ難く、安全性並びに耐久性の向上に寄与できる。   Further, since the fitting direction of the clamp 32 is made different, the mounting strength of the handrail body 31 is increased, the wobbling of the handrail body 31 is difficult to occur, and the safety and durability can be improved.

尚、本発明は、本発明の精神を逸脱しない限り種々の改変を為すことができ、そして、本発明が該改変されたものに及ぶことは当然である。   It should be noted that the present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified ones.

図は本発明の一実施の形態を示すものである。
油圧ショベルの側面図。 ハンドレール装置の拡大斜視図。 The figure shows an embodiment of the present invention.
The side view of a hydraulic excavator. The expansion perspective view of a handrail device.

符号の説明Explanation of symbols

１０ 油圧ショベル
３０ ハンドレール装置
３１ ハンドレール本体
３２ クランプ
３３ ボルト
３４ 立ち上がり部
３５ 湾曲部
３６ 屈曲部
３７ 屈曲部 DESCRIPTION OF SYMBOLS 10 Excavator 30 Handrail device 31 Handrail main body 32 Clamp 33 Bolt 34 Standing part 35 Bending part 36 Bending part 37 Bending part

Claims (2)

パイプ材にて形成されたハンドレール本体の端部をクランプにて固定したことを特徴とする建設機械のハンドレール装置。   A handrail device for a construction machine, wherein an end portion of a handrail body formed of a pipe material is fixed by a clamp. 上記ハンドレール本体の端部を屈曲し、該屈曲部分の両側をクランプにて固定し、且つ、クランプの嵌め込み方向を異なる２方向とした請求項１記載の建設機械のハンドレール装置。   The handrail device for a construction machine according to claim 1, wherein the end portion of the handrail body is bent, both sides of the bent portion are fixed by clamps, and the fitting directions of the clamps are set to two different directions.
JP2004002205A 2004-01-07 2004-01-07 Construction equipment handrail equipment Expired - Fee Related JP4062535B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004002205A JP4062535B2 (en) 2004-01-07 2004-01-07 Construction equipment handrail equipment

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Application Number Priority Date Filing Date Title
JP2004002205A JP4062535B2 (en) 2004-01-07 2004-01-07 Construction equipment handrail equipment

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JP2005194777A true JP2005194777A (en) 2005-07-21
JP4062535B2 JP4062535B2 (en) 2008-03-19

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100861562B1 (en) 2006-11-24 2008-10-02 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 Folder type handrail for construction equipment
JP2010031550A (en) * 2008-07-29 2010-02-12 Hitachi Constr Mach Co Ltd Mud raising work machine
JP2010077607A (en) * 2008-09-24 2010-04-08 Hitachi Constr Mach Co Ltd Handrail of construction machinery

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS647979U (en) * 1987-07-03 1989-01-17
JPH0315728U (en) * 1989-06-30 1991-02-18
JPH04157275A (en) * 1990-10-18 1992-05-29 Usui Internatl Ind Co Ltd Clamp for fixing small diameter piping
JPH10140612A (en) * 1996-11-13 1998-05-26 Hitachi Constr Mach Co Ltd Handrail of construction machine
JP2002061231A (en) * 2000-08-21 2002-02-28 Shin Caterpillar Mitsubishi Ltd Handrail device
JP2002212974A (en) * 2001-01-18 2002-07-31 Shin Caterpillar Mitsubishi Ltd Tank apparatus and construction equipment
JP2004044122A (en) * 2002-07-09 2004-02-12 Shin Caterpillar Mitsubishi Ltd Handrail structure in construction machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS647979U (en) * 1987-07-03 1989-01-17
JPH0315728U (en) * 1989-06-30 1991-02-18
JPH04157275A (en) * 1990-10-18 1992-05-29 Usui Internatl Ind Co Ltd Clamp for fixing small diameter piping
JPH10140612A (en) * 1996-11-13 1998-05-26 Hitachi Constr Mach Co Ltd Handrail of construction machine
JP2002061231A (en) * 2000-08-21 2002-02-28 Shin Caterpillar Mitsubishi Ltd Handrail device
JP2002212974A (en) * 2001-01-18 2002-07-31 Shin Caterpillar Mitsubishi Ltd Tank apparatus and construction equipment
JP2004044122A (en) * 2002-07-09 2004-02-12 Shin Caterpillar Mitsubishi Ltd Handrail structure in construction machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100861562B1 (en) 2006-11-24 2008-10-02 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 Folder type handrail for construction equipment
JP2010031550A (en) * 2008-07-29 2010-02-12 Hitachi Constr Mach Co Ltd Mud raising work machine
JP2010077607A (en) * 2008-09-24 2010-04-08 Hitachi Constr Mach Co Ltd Handrail of construction machinery

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