JPS5948388A - Telescopic boom - Google Patents
Telescopic boomInfo
- Publication number
- JPS5948388A JPS5948388A JP58144508A JP14450883A JPS5948388A JP S5948388 A JPS5948388 A JP S5948388A JP 58144508 A JP58144508 A JP 58144508A JP 14450883 A JP14450883 A JP 14450883A JP S5948388 A JPS5948388 A JP S5948388A
- Authority
- JP
- Japan
- Prior art keywords
- sliding
- sliding member
- attached
- members
- support
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
- B66C23/707—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic guiding devices for telescopic jibs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/045—Ball or roller bearings having rolling elements journaled in one of the moving parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jib Cranes (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Earth Drilling (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
この発明は負荷能力を大きくできるようにしたテレスコ
ピックブームに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a telescopic boom capable of increasing load capacity.
従来、荷重をランナ車に平均に負担させるプこめにバラ
ンスビームを用いていだが、バランスビーム上の２つの
ランチ車が負担する荷重ば２０−２５ トンに達するこ
とがあシ、負荷能力を制限する原因となっていた。ぞし
て、ランチ車に掛る荷車ケ減らすために摺動部材のカウ
ンタブームを微調整することも不可能でない丑でも、極
めて難かしい作業であっ／こ。Conventionally, a balance beam has been used to distribute the load evenly to the runner cars, but the load borne by the two launch cars on the balance beam can reach 20-25 tons, which limits the load capacity. It was the cause. Therefore, fine adjustment of the counter boom of the sliding member in order to reduce the number of carts hanging on the lunch truck was an extremely difficult task, even if it was not impossible.
この発明は上記従来技術の問題点を解消できるようにし
たテレスコピックブームを提供することを目的とするも
のである。The object of the present invention is to provide a telescopic boom that can solve the problems of the prior art described above.
この発明のテレスコピックブーム（ｒｉ、少すくとも２
本の摺動部材からなり、１方の摺動部材には少なくとも
２つの支持材を備えた少なくとも１つの支持案内部が設
けられ、第２の摺動部材に設けられた面か上記支持材上
に支持されているものにおいて、上記支持材が相互に摺
動し得る２つの部材からなるツヤツキに取付けられ、上
記２つの部材の中の第１の部材が第１の拙“動部材に取
付けられると共に第２の部材に上記支持材が取付けら几
且つ各ジヤツキは非圧縮は流体を収容する作動室をイ／
ｉｉ１え、この作動室は摺動部材に設けられた他のノー
１．ツキの作Ｑ、室（・ζ凍、ｊ山していることを４’
デ徴とするものである。Telescopic boom of this invention (ri, at least 2
one sliding member is provided with at least one support guide with at least two supports, and a surface provided on the second sliding member is arranged on the support member. In the case where the supporting member is attached to a mat consisting of two members that can slide on each other, the first member of the two members is attached to the first moving member. At the same time, the support member is attached to the second member, and each jack has an operating chamber containing a non-compressible fluid.
ii1 This working chamber is connected to another no.1 provided on the sliding member. 4'
This is a sign of deterioration.
そして、次のような好−ヰしい実施態様を有するもので
ある。And, it has the following preferred embodiments.
１）支持宅内部のノやツギのεｆ３１部材が１体に構成
さ力、でいること。1) The εf31 members of the nuts and bolts inside the support house are constructed as one body.
２）この１体に構成された部椙が第１摺動部材に着脱可
能シτ１；゛ｚ付けら力、でいること。2) The part configured as one unit is capable of being attached to and detached from the first sliding member.
３）支持案内部のツヤツキの作動室（（１： １）１ｉ
、併流路に並列に接続され、この流体流路は加圧流体源
に簡易着脱式の接手を介して接続されていること。3) Glossy working chamber of support guide part ((1: 1) 1i
, connected in parallel to a parallel fluid flow path, which fluid flow path is connected to a source of pressurized fluid via a simple detachable coupling.
４）ツヤツキは自動式で、そのピストンに支持材である
ランチ車が取付けらノ１７、このランチ車の軸端間を第
１摺動部利の（ＩＩＩ板に隣１１隻して設け ０ストン
配列方向を摺動部材のＩｌｌ＋線と一致させることによ
り、第２摺動部材を支持する上記ランチ車の配列方向を
第２摺動部材の側版の向きと一致させるようになってい
ること。4) The gloss is automatic, and a launch wheel, which is a support material, is attached to the piston. By matching the arrangement direction with the Ill+ line of the sliding member, the arrangement direction of the launch vehicle supporting the second sliding member can be made to match the direction of the side plate of the second sliding member.
以下この発明の１実施例を図面にょシ説明する。第１図
において、）は外側摺動部材、２は外側摺動部材１中に
テレスコピックに設けられた内側摺動部材である。３は
、外側摺動部材ｌの先端部に設けられた支持材４として
の４つのランナ車を有する支持案内部である。ランチ車
４は内側摺動部材２の底板５の下面、５ ａを支持して
いる。６は内側摺動部材２の後端部に設けられた４つの
ランチ畢を有する第２の支持案内部である。ランチ車４
は外側摺動部材ノの上板８の下面８ａを支持している。An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, ) is an outer sliding member, and 2 is an inner sliding member telescopically provided in the outer sliding member 1. In FIG. Reference numeral 3 denotes a support guide portion having four runner wheels as a support member 4 provided at the tip of the outer sliding member l. The launch car 4 supports the lower surface 5a of the bottom plate 5 of the inner sliding member 2. Reference numeral 6 designates a second support guide portion provided at the rear end of the inner sliding member 2 and having four launch furrows. lunch car 4
supports the lower surface 8a of the upper plate 8 of the outer sliding member.
フックＱが、ブーム内を通るケーブル１ｏに懸垂されて
いる。A hook Q is suspended from a cable 1o passing inside the boom.
第２図に支持案内部３，６の詳細を示す。７は４つのシ
リング−１を一列に形成し／こ１体のブロックである。FIG. 2 shows details of the support guide parts 3 and 6. 7 is a block of four shillings-1 formed in a row.
ピストン１２がシリング１ノに摺動可能に設けられる。A piston 12 is slidably mounted on the sill 1.
上記の２つの部材であるシリンダ１１とピストンＩ２と
でツヤツキが構成されている。ランチ車４は、第４図、
第６図に示す如く、フラットヘッド１５を有する髪
軸１４に嵌装されて、フォーク１３を介してピストン１
２に取付けられている。１６はブロック２を貫通して形
成された流体流路で、一端はねじフラグ１７で閉じら層
５、他ψニアｊにｅよ１）１１易着脱式の接手１９用の
雌ねじＪ８が設けらｔｚている。The above two members, the cylinder 11 and the piston I2, constitute the gloss. Lunch truck 4 is shown in Figure 4.
As shown in FIG. 6, the piston 1 is fitted onto a hair shaft 14 having a flat head 15,
It is attached to 2. 16 is a fluid flow path formed through the block 2, one end of which is closed with a screw flag 17, and the other end is provided with a female thread J8 for an easily attachable and detachable joint 19. tz is there.
２０はシリンダ１ノとピストンＩ２とによって画さり、
た作；；カ罠であり、炉孔２ノを介して流体流路１６に
接続部れている１、辿止弁２２が雌ねじ１８と短孔２ノ
との間に目ｑ′けられている。そして、接手１９を雌ね
じノ８にねじ込んだ、第２図に示す状態では、接手１９
の先Ｑ’、ｌ ２ 、ｉが７１ホールを押し弁が開き、
一方（グ手１９γＪ（ゾ出した第３図に示す状態では、
ポールが弁ンートに接して弁が閉じるようになっている
。この接手１９は、ポンプ２５の吐出管２４に接続され
ている。この例ではポンプ２５は手動２６である。20 is defined by cylinder 1 and piston I2,
1, which is a trap and is connected to the fluid flow path 16 through the furnace hole 2; a trace valve 22 is located between the internal thread 18 and the short hole 2; There is. In the state shown in FIG. 2 in which the joint 19 is screwed into the female thread 8, the joint 19
Q', l 2 and i push the 71st hole and the valve opens,
On the other hand, in the state shown in FIG.
The valve closes when the pole touches the valve root. This joint 19 is connected to a discharge pipe 24 of a pump 25. In this example, pump 25 is manual 26.
そしてポン７’２５の吸込管２７は非圧縮性流体（作動
油〕２８のリデーパに接続されている。The suction pipe 27 of the pump 7'25 is connected to a redeper of an incompressible fluid (hydraulic oil) 28.
次に第５図〜第８図により、支持案内部３゜６の摺動部
８１，２への数句方法について説明する。外側摺動部材
１の先端部は上板８に平行する底板２９と両側板３０．
３０とを溶接して形成されでいる。この例では外側摺動
部材１の断面は４角形となっている。２つの支持η（内
部３．３が両側板３θ、ヴ０に隣接して設けられている
。このために水平ベースプレートラ３に隔壁、？ ７
、 、？ ７及び側板３２ 、３２を溶接してビックス
状の取付四部を形成しである。側板３２は摺動部材１の
側板３０の延長部である。Next, with reference to FIGS. 5 to 8, a method for attaching the sliding parts 81, 2 of the support guide part 3.6 will be explained. The tip of the outer sliding member 1 is connected to a bottom plate 29 parallel to the upper plate 8 and both side plates 30.
30 are welded together. In this example, the outer sliding member 1 has a rectangular cross section. Two supports η (internal 3.3 are provided adjacent to both side plates 3θ, V0. For this purpose, a partition wall, ?7 is provided on the horizontal base plate 3).
, ,? 7 and the side plates 32, 32 are welded to form four Vicks-shaped mounting parts. The side plate 32 is an extension of the side plate 30 of the sliding member 1.
側板３２にあげられた孔、？ ６ 、３６からボルト３
４を挿入し、ブロック７のねじ孔３５に螺合させること
により、支持案内部３は摺動部材１に取付けられる。こ
の場合支持案内部３は、隔壁３）と側板３２の間に、摺
動部材１の軸Ａ１に平行する矢印１？方向に水平に数句
ける。The hole in the side plate 32? 6, bolt 3 from 36
4 and screwed into the screw hole 35 of the block 7, the support guide part 3 is attached to the sliding member 1. In this case, the support guide part 3 is arranged between the partition wall 3) and the side plate 32 with an arrow 1? parallel to the axis A1 of the sliding member 1. Write several lines horizontally in the direction.
第７図に示す如く、内側摺動部材２の後端部は伐根５に
平行する上板３７と両側板３８゜３８を溶接して形成さ
れている。内側摺動部材の断面は４角形となっている。As shown in FIG. 7, the rear end portion of the inner sliding member 2 is formed by welding an upper plate 37 parallel to the cutting roots 5 and both side plates 38. The inner sliding member has a rectangular cross section.
そして、上両隅に、平置側板３９．垂直隔板４０及び水
平べ一スゾｌ／−）４１から形成される四部が設けられ
ている。垂ｌｎ側板３９にあけられた孔４２ 、４２か
ら７」？ルト４３を挿入し、ブロック７のねじ孔３５に
螺合させる仁とに、Ｌり支持案内Ｈ’、ＩＩ ｔ：は摺
動部利２に取付けられる。Then, on both upper corners, horizontal side plates 39. Four parts are provided which are formed by a vertical diaphragm 40 and a horizontal base plate 41. Holes 42, 42 to 7'' drilled in the vertical side plate 39? When the bolt 43 is inserted and screwed into the screw hole 35 of the block 7, the L-shaped support guide H', IIt: is attached to the sliding part 2.
この発明は上記のようなもので、次のような効果を奏す
る。まず支持案内部？、６をテレスコピックブームの摺
動部月１．２にｆｆｉ’＋単に取付けることができる。This invention is as described above, and has the following effects. First of all, the support information department? , 6 can be simply mounted on the sliding part 1.2 of the telescopic boom.
またブロック７の各作動室２０は流体流路１６に短管２
ノを介して並列に接続されているので、各作動室２０内
の圧力に、等しい。従って、各ランチ車４が負担する荷
ｊ（ｊを、バランスビームを用いろことなく、等しくす
ることができる。In addition, each working chamber 20 of the block 7 has a short pipe 2 connected to the fluid flow path 16.
Since the pressure in each working chamber 20 is equal to the pressure in each working chamber 20, the pressure in each working chamber 20 is equal. Therefore, the load j (j) borne by each launch truck 4 can be made equal without using a balance beam.
また、作動室２θ内の作動油の量を調整することにより
、摺動部材相互の支持案内を良好々状態にすることがで
きる。Moreover, by adjusting the amount of hydraulic oil in the working chamber 2θ, the mutual support and guidance of the sliding members can be maintained in a good condition.
“また第６図、第８図に示すように、ラン・ノー車４の
軸のヘッド１５と側板３２，３９の内１’Ｍｉ３２ｔｓ
、３９ａとの間にわずかな隙間Ｊを存して、ブロック７
を側板Ｊ ２ 、．３９に取付ける。"Also, as shown in FIG. 6 and FIG.
, 39a, with a slight gap J between the blocks 7 and 39a.
side plate J 2 , . Attach to 39.
この配置により、軸のヘッド従ってランチ車４自体が、
その」二に支持婆れる摺動部材に対し回転することはな
い。それ故テレスコーピングの方向を常に一定にイｙつ
ことかできる、。With this arrangement, the head of the axle and therefore the launch vehicle 4 itself,
It does not rotate relative to the sliding member that is supported on the second side. Therefore, the direction of telescoping can always be set constant.
また、上記実施例では、支持案内部３．６には４つのラ
ンナ車を設けであるが、これよ多多く（例えば５ （１
２１、６個）或いは少々く（例えば２個２３個とりして
もよく、荷重に応じて適当数設けることができる。なお
、支持＋］としてのランナ車は、Ｊ９擦のないスライド
ブロックとしてもよい。Further, in the above embodiment, the support guide section 3.6 is provided with four runner wheels, but the number of runner wheels is greater than this (for example, 5 (1
21, 6 pieces) or a little smaller (for example, 2 pieces or 23 pieces may be used, and an appropriate number can be provided depending on the load.The runner wheel as a support +) can also be used as a slide block without J9 friction. good.
第１図はこの発明のテレスコピックブームノ縦断面図、
第２図は支持案内部の、Ｉｉ：（断面図、第３図は第２
図の支持案内部の接手を外した状態での部分拡大断面図
、第４図は第６ト（［のＩＶ −？＋’ｉｄに沿った断
面図、第５図は第１［（イ）の外側摺動部材先端部の支
持案内部数イ」用四部の斜視図、第６図は支持案内部が
ｇ＜ ５１２１に示す取付四部に取付けられグこ状態で
の、第４図の■−■線に沿った断面図、８ｒ！７図は第
１図の内側１摺動部材後端部の支持案内部材取利用四部
０斜視図１、第８図は支持案内部が第７図に示ず取付凹
部に増刊けられた状態での第６図と同様な断面図である
。
１・・外側（第１）摺動部拐、２・・・内′１ｌｌｌＩ
（第２）摺動部材、３，６・・・支持案内バｌＳ、４・
・・支持４Ｊ、７・・・ブＯツク、１１・・・第り部相
（ンリンク）、１２ ・・・ 身■ ２ 部材 （ビス
ト ン ） 、 ノ ４ ・・・ 小ｉ１＋、
Ｉ ５・・・軸のヘッド、１６・・・流体流路、
１９・・・簡易着脱式接手、２０・・作動室、３２．３
９・・・（ＩＩＩ板。FIG. 1 is a longitudinal sectional view of the telescopic boom of this invention.
Figure 2 is a sectional view of the support guide section, and Figure 3 is a cross-sectional view of the support guide section.
Fig. 4 is a cross-sectional view taken along IV -?+'id of 6th ([); Figure 6 is a perspective view of the four supporting guide parts at the tip of the outer sliding member, and Figure 6 is a perspective view of the four supporting guide parts shown in Fig. 4 when the supporting guide parts are attached to the four mounting parts indicated by g A cross-sectional view taken along line 8r!7 is a perspective view of the inner side 1 of the rear end of the sliding member in Figure 1. It is a sectional view similar to Fig. 6 in a state where the extra edition is attached to the mounting recess. 1. Outer (first) sliding part removed, 2... Inner'1llll
(Second) Sliding member, 3, 6... Support guide bar IS, 4.
... Support 4J, 7... Book, 11... Third part (link), 12... Body ■ 2 member (viston), No. 4... Small i1+,
I 5... Shaft head, 16... Fluid flow path,
19...Simple detachable joint, 20...Working chamber, 32.3
9...(III board.
Claims (5)
部材には少なくとも２つの支持相を備えた少なくとも１
つの支持案内部が設けられ、第２の摺動部材に設けられ
た面が上記支持材上に支持されているものにおいて、上
記支持材が相互に摺動し得る２つの部材からなるツヤツ
キに取付けられ、上記２つの部材の中の第１の部材が第
１の摺動部材に数句けられると共に第２の部材に上記支
持材が取付けられ且つ各ツヤツキは非圧縮性の流体を収
容する作動室を備え、この作動室は摺動部材に設けられ
た他のツヤツキの作動室に連通していることを特徴とす
るテレスコピックゲーム。(1) at least two sliding members, one sliding member having at least two supporting phases;
In the case where the surface provided on the second sliding member is supported on the support member, the support member is attached to a mat made of two members that can slide on each other. The first member of the two members is attached to the first sliding member, the support member is attached to the second member, and each gloss is operated to contain an incompressible fluid. A telescopic game characterized in that the working chamber is connected to another glossy working chamber provided in a sliding member.
れている特許請求の範囲第（１）項記載のテレスコピッ
クブーム。(2) The telescopic boom according to claim (1), wherein the glossy cover 1 member of the support guide portion is constructed as one piece.
可能に取付けられている特許ｔ１１求の１−１）回出（
２）項記載のテレスコピックデーム。(3) Part IJ, which is composed of one body, is the first print! 1-1) Output (1-1) of patent t11, which is detachably attached to the auxiliary member
Telescopic deme described in section 2).
体ｐＩＬ路に並列に接続され、このｂＩＬ体流路は加圧
流体源に簡易着脱式の接手を介して接続さ７１．ている
特許請求の範囲第（１）項記載のテレスコピックブーム
。(4) Made by Jatsuki of the support guide section! 71. A telescopic boom according to claim (1).
であるランナ車が数句けられ、このランチ車の軸の端面
を第１摺動部利の側版に隣設して設け、ピストン配列方
向を摺動部側の軸綜と一致させることにより、第２摺動
部制を支持する上記ランナ車の配列方向をＷｒ、２の摺
動部材の側板の向きと一致させるようになっている特、
７′ｒ請求の範囲第（１）項記載のテレスコピックブー
ム。(5) The jack is a direct-acting type, and the piston has several runner wheels as supporting members, and the end face of the shaft of this launch wheel is installed adjacent to the side plate of the first sliding part, and By matching the arrangement direction with the shaft heel on the sliding part side, the arrangement direction of the runner wheels supporting the second sliding part brake can be made to match the direction of the side plate of the sliding member Wr, 2. Special,
7'r Telescopic boom according to claim (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8213937 | 1982-08-10 | ||
| FR8213937A FR2531691B1 (en) | 1982-08-10 | 1982-08-10 | TELESCOPIC BOOM WITH DEVICES FOR SUPPORTING AND / OR GUIDING ITS IMPROVED SECTIONS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5948388A true JPS5948388A (en) | 1984-03-19 |
Family
ID=9276776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58144508A Pending JPS5948388A (en) | 1982-08-10 | 1983-08-09 | Telescopic boom |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5948388A (en) |
| DE (1) | DE3326108A1 (en) |
| FR (1) | FR2531691B1 (en) |
| GB (1) | GB2125004B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677756A (en) * | 2020-06-19 | 2020-09-18 | 三一汽车起重机械有限公司 | Guide sliding assembly, telescopic boom and engineering machinery |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19608210C1 (en) * | 1996-03-04 | 1997-10-09 | Kidde Ind Inc | Device for guiding a telescopic part for a telescopic boom |
| DE19653502C2 (en) * | 1996-12-20 | 2000-06-21 | Grove Us Llc | Device for locking or releasing the locking of shots of a telescopic boom for a mobile crane |
| DE19826924A1 (en) * | 1998-06-17 | 1999-12-23 | Grove Us Llc | Boom fixation with adjusting cylinder |
| FR2885894B1 (en) * | 2005-05-19 | 2007-06-22 | Ecl Soc Par Actions Simplifiee | DEVICE FOR GUIDING MATS SLIDING INTO THE OTHER, TELESCOPIC ARM AND METHOD OF GUIDING |
| SE534416C2 (en) * | 2009-11-30 | 2011-08-16 | Cargotec Patenter Ab | Telescopic device including a sliding element |
| GB2559331B (en) * | 2017-01-26 | 2019-04-24 | Terex Gb Ltd | Telescopic conveyor support assembly |
| CN106829760A (en) * | 2017-03-30 | 2017-06-13 | 中国铁建重工集团有限公司 | A kind of telescopic arm |
| US10066363B1 (en) | 2017-07-13 | 2018-09-04 | Cnh Industrial America Llc | Wear pad system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5187679A (en) * | 1975-01-30 | 1976-07-31 | Motoda Denshi Kogyo Kk | RYUTAIATSUSHI RINDAY UNITSUTO |
| JPS5240102A (en) * | 1975-09-25 | 1977-03-28 | Hitachi Ltd | Preventing circuit for forgetting to switch off power switch of audio- amp |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD79125A (en) * | ||||
| GB759046A (en) * | 1953-11-11 | 1956-10-10 | Webster & Bennet Ltd | Vertical boring, drilling, turning and like machine tools |
| GB1049975A (en) * | 1964-11-18 | 1966-11-30 | Lamalocks Ltd | Improvements in or relating to fluid operated thrust units |
| DE1531174A1 (en) * | 1967-09-22 | 1970-04-16 | Demag Bagger & Kran Gmbh | Telescopic boom for cranes and excavators with at least one retractable and extendable extension piece |
| JPS4836028B1 (en) * | 1969-08-21 | 1973-11-01 | ||
| CA935402A (en) * | 1970-04-17 | 1973-10-16 | J. Benkowski Frank | Boom slider assembly |
| US3719403A (en) * | 1970-11-17 | 1973-03-06 | Kidde & Co Walter | Crane boom having wear pads |
| US4264265A (en) * | 1979-05-25 | 1981-04-28 | J. I. Case Company | Adjusting slide mechanism for telescoping boom |
-
1982
- 1982-08-10 FR FR8213937A patent/FR2531691B1/en not_active Expired
-
1983
- 1983-07-20 DE DE3326108A patent/DE3326108A1/en active Granted
- 1983-08-04 GB GB08321052A patent/GB2125004B/en not_active Expired
- 1983-08-09 JP JP58144508A patent/JPS5948388A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5187679A (en) * | 1975-01-30 | 1976-07-31 | Motoda Denshi Kogyo Kk | RYUTAIATSUSHI RINDAY UNITSUTO |
| JPS5240102A (en) * | 1975-09-25 | 1977-03-28 | Hitachi Ltd | Preventing circuit for forgetting to switch off power switch of audio- amp |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677756A (en) * | 2020-06-19 | 2020-09-18 | 三一汽车起重机械有限公司 | Guide sliding assembly, telescopic boom and engineering machinery |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2531691A1 (en) | 1984-02-17 |
| DE3326108C2 (en) | 1992-12-03 |
| GB2125004B (en) | 1986-01-22 |
| GB8321052D0 (en) | 1983-09-07 |
| DE3326108A1 (en) | 1984-02-16 |
| FR2531691B1 (en) | 1986-03-28 |
| GB2125004A (en) | 1984-02-29 |
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