US3741346A - Shock-proof fork support for fork lift trucks - Google Patents
Shock-proof fork support for fork lift trucks Download PDFInfo
- Publication number
- US3741346A US3741346A US00187426A US3741346DA US3741346A US 3741346 A US3741346 A US 3741346A US 00187426 A US00187426 A US 00187426A US 3741346D A US3741346D A US 3741346DA US 3741346 A US3741346 A US 3741346A
- Authority
- US
- United States
- Prior art keywords
- mast
- supporting plate
- supporting
- base frame
- fork
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/12—Platforms; Forks; Other load supporting or gripping members
Definitions
- ABSTRACT A telescopic mast with stand mast and drive mast for fork lift trucks, which includes a fork support vertically movable in the drive mast and also includes load pickup and supporting elements connected to said fork sup- I port by means of a supporting plate, which latter is in horizontal direction elastically supported by the base frame of the lift carriage.
- the present invention concerns a shock-proof fork support for fork lifts and, more specifically, concerns a telescope mast with stand and driving mast for fork lifts with a fork support vertically movable in the driving mast and with supporting elements connected to said fork support by means of a supporting plate.
- the supporting plate is connected to the rollers which directly receive the lateral jaws.
- Such an arrangement has the drawback that in view of the shock energy occurring during the pickup of the load in view of the dynamic driving load, is directly conveyed to the supporting rollers arranged on the lifting mast and is also conveyed to the running path of the mast so that these parts are frequently damaged or destroyed.
- an object of the present invention to provide an arrangement to equalize the shock stresses, especially the high loads which occur during a fast pickup of load and which bring about a premature wear of the guiding path for the lifting carriage, the rollers,
- FIG. 1 is an isometric view of a fork lifter according to the invention, with shock-proof fork support.
- FIG. 3 shows a side view of the lifting carriage with supporting plate and supporting fork and also shows a partial section through the elastic connection.
- the arrangement according to the present invention is characterized primarily in that the supporting plate serving for holding the supporting elements is, in horizontal direction, elastically supported by the base frame.
- the elastic support of the supporting plates with regard to the base frame is mounted by means of dish springs on threaded bushings with the collar of the threaded bushings engaging a recess of the supporting plate while the threaded bushing in its'turn is secured against accidentally dropping out by cheese head screws mounted in a recess of the transverse beam of the base frame of the lifting carriage.
- the lifting stroke of the dish springs is limited by abutment means which are connected to the back side of the supporting plate, said abutment means resting against the stand mast.
- the fork lift 1 is movable on four wheels 2 with rubber tires and is equipped with a drive of its own while being able to be steered by means of the steering wheel 3.
- the stand mast 4 is pivotally arranged inasmuch as the inner or driving mast 5 is adapted to telescopically slide -on guiding means, which will be described further below, as soon as the inner or driving mast 5 is actuated upon by lifting cylinder 7 through the intervention of lifting chains 6.
- the lifting carriage 8 is displaceably mounted at the lower end of the stand mast 4 and inner mast 5.
- the said lifting carriage 8 comprises a supporting plate 9 and a supporting fork 10.
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2049414A DE2049414C3 (de) | 1970-10-08 | 1970-10-08 | Stoßdämpfende Federung eines Hubschlittens für Hublader |
Publications (1)
Publication Number | Publication Date |
---|---|
US3741346A true US3741346A (en) | 1973-06-26 |
Family
ID=5784538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00187426A Expired - Lifetime US3741346A (en) | 1970-10-08 | 1971-10-07 | Shock-proof fork support for fork lift trucks |
Country Status (14)
Country | Link |
---|---|
US (1) | US3741346A (fr) |
JP (1) | JPS5229494B1 (fr) |
AT (1) | AT315739B (fr) |
BE (1) | BE773693A (fr) |
BG (1) | BG28042A3 (fr) |
CH (1) | CH525153A (fr) |
DE (1) | DE2049414C3 (fr) |
DK (1) | DK124743B (fr) |
FR (1) | FR2110291B1 (fr) |
GB (1) | GB1366693A (fr) |
IT (1) | IT940944B (fr) |
NL (1) | NL151039B (fr) |
NO (1) | NO131926C (fr) |
SE (1) | SE366720B (fr) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4234057A (en) * | 1977-09-13 | 1980-11-18 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Lift truck having a load lifting assembly |
US4503935A (en) * | 1982-03-15 | 1985-03-12 | Towmotor Corporation | Lift jack retention bracket |
US5174710A (en) * | 1991-03-27 | 1992-12-29 | George Dragos | Merchandise protector |
US5984050A (en) * | 1997-05-29 | 1999-11-16 | The Raymond Corporation | Carriage suspension for lift truck |
US6454034B1 (en) * | 1998-10-28 | 2002-09-24 | Linde Aktiengesellschaft | Fork lift truck |
US20060055132A1 (en) * | 2004-08-20 | 2006-03-16 | Michael Schonauer | Industrial truck having a fork damper |
US20080116013A1 (en) * | 2004-06-18 | 2008-05-22 | Vandewinckel Stephen C | High Lift Truck |
KR200449203Y1 (ko) * | 2008-02-28 | 2010-06-24 | 황득상 | 지게차용 클램프 장치 |
US20140262625A1 (en) * | 2013-03-15 | 2014-09-18 | Geoffrey R. Sharp | Movable load backrest for a lift truck |
US20150016937A1 (en) * | 2013-06-04 | 2015-01-15 | Roche Diagnostics Operations, Inc. | Transport device |
CN108910779A (zh) * | 2018-08-10 | 2018-11-30 | 肥东万安工程机械有限公司 | 一种可视角度大的叉车门架 |
CN111732034A (zh) * | 2019-03-25 | 2020-10-02 | 三菱重工业株式会社 | 叉车及其叉构件 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3318388C2 (de) * | 1983-05-20 | 1985-04-04 | Carl Falkenroth Söhne GmbH & Co KG, 5885 Schalksmühle | Traggabel für insbesondere Hubstapler |
AT392255B (de) * | 1988-04-19 | 1991-02-25 | Austria Metall | Heb- und stapelbares verladegestell fuer einen hubstapler |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA738826A (en) * | 1966-07-19 | Darimont Maurice | Fork lift truck | |
US3314559A (en) * | 1964-04-30 | 1967-04-18 | Eaton Yale & Towne | Vacuum attachment |
-
1970
- 1970-10-08 DE DE2049414A patent/DE2049414C3/de not_active Expired
-
1971
- 1971-08-06 AT AT691171A patent/AT315739B/de not_active IP Right Cessation
- 1971-09-03 BG BG7118496A patent/BG28042A3/xx unknown
- 1971-09-25 IT IT53091/71A patent/IT940944B/it active
- 1971-09-29 DK DK473771AA patent/DK124743B/da unknown
- 1971-09-30 NL NL717113464A patent/NL151039B/xx unknown
- 1971-10-01 NO NO3608/71A patent/NO131926C/no unknown
- 1971-10-06 FR FR7135995A patent/FR2110291B1/fr not_active Expired
- 1971-10-07 JP JP46078428A patent/JPS5229494B1/ja active Pending
- 1971-10-07 CH CH1461971A patent/CH525153A/de not_active IP Right Cessation
- 1971-10-07 SE SE12678/71A patent/SE366720B/xx unknown
- 1971-10-07 US US00187426A patent/US3741346A/en not_active Expired - Lifetime
- 1971-10-08 BE BE773693A patent/BE773693A/fr unknown
- 1971-10-08 GB GB4689071A patent/GB1366693A/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA738826A (en) * | 1966-07-19 | Darimont Maurice | Fork lift truck | |
US3314559A (en) * | 1964-04-30 | 1967-04-18 | Eaton Yale & Towne | Vacuum attachment |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4234057A (en) * | 1977-09-13 | 1980-11-18 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Lift truck having a load lifting assembly |
US4503935A (en) * | 1982-03-15 | 1985-03-12 | Towmotor Corporation | Lift jack retention bracket |
US5174710A (en) * | 1991-03-27 | 1992-12-29 | George Dragos | Merchandise protector |
US5984050A (en) * | 1997-05-29 | 1999-11-16 | The Raymond Corporation | Carriage suspension for lift truck |
US6454034B1 (en) * | 1998-10-28 | 2002-09-24 | Linde Aktiengesellschaft | Fork lift truck |
US20080116013A1 (en) * | 2004-06-18 | 2008-05-22 | Vandewinckel Stephen C | High Lift Truck |
US20060055132A1 (en) * | 2004-08-20 | 2006-03-16 | Michael Schonauer | Industrial truck having a fork damper |
KR200449203Y1 (ko) * | 2008-02-28 | 2010-06-24 | 황득상 | 지게차용 클램프 장치 |
US20140262625A1 (en) * | 2013-03-15 | 2014-09-18 | Geoffrey R. Sharp | Movable load backrest for a lift truck |
US20150016937A1 (en) * | 2013-06-04 | 2015-01-15 | Roche Diagnostics Operations, Inc. | Transport device |
CN108910779A (zh) * | 2018-08-10 | 2018-11-30 | 肥东万安工程机械有限公司 | 一种可视角度大的叉车门架 |
CN111732034A (zh) * | 2019-03-25 | 2020-10-02 | 三菱重工业株式会社 | 叉车及其叉构件 |
US11136228B2 (en) * | 2019-03-25 | 2021-10-05 | Mitsubishi Heavy Industries, Ltd. | Forklift and fork member of the same |
Also Published As
Publication number | Publication date |
---|---|
FR2110291B1 (fr) | 1975-11-21 |
IT940944B (it) | 1973-02-20 |
NO131926B (fr) | 1975-05-20 |
DE2049414B2 (de) | 1974-02-07 |
NL151039B (nl) | 1976-10-15 |
FR2110291A1 (fr) | 1972-06-02 |
BG28042A3 (en) | 1980-02-25 |
BE773693A (fr) | 1972-01-31 |
AT315739B (de) | 1974-06-10 |
GB1366693A (en) | 1974-09-11 |
JPS5229494B1 (fr) | 1977-08-02 |
DE2049414C3 (de) | 1974-08-29 |
DE2049414A1 (de) | 1972-04-13 |
NO131926C (fr) | 1975-09-03 |
CH525153A (de) | 1972-07-15 |
DK124743B (da) | 1972-11-20 |
SE366720B (fr) | 1974-05-06 |
NL7113464A (fr) | 1972-04-11 |
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