CN2320486Y - Front-tipping lockover mechanism for flat-head vehicle driver's cab - Google Patents

Front-tipping lockover mechanism for flat-head vehicle driver's cab Download PDF

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Publication number
CN2320486Y
CN2320486Y CN 98212858 CN98212858U CN2320486Y CN 2320486 Y CN2320486 Y CN 2320486Y CN 98212858 CN98212858 CN 98212858 CN 98212858 U CN98212858 U CN 98212858U CN 2320486 Y CN2320486 Y CN 2320486Y
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CN
China
Prior art keywords
worm
cab
flat
crank
tipping
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 - Fee Related
Application number
CN 98212858
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Chinese (zh)
Inventor
杨尚平
杨晓玉
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Individual
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Individual
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Publication date
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Priority to CN 98212858 priority Critical patent/CN2320486Y/en
Application granted granted Critical
Publication of CN2320486Y publication Critical patent/CN2320486Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a front-tipping lockover mechanism for a flat-head vehicle driver's cab, which belongs to the field of auto parts fitting for automobiles. The mechanism is composed of a crank arm 4, a connecting rod 5, a crank-rocker mechanism, a handle 1, a worm screw 2 and a worm wheel 3, wherein one end of the crank arm 4 is fixed on a worm-wheel shaft; one end of the connecting rod 5 is hinged at the crank arm 4, while the other end is hinged to the bottom of the driver's cab 6; the crank-rocker mechanism serving as a rocker which can be rotated around a hinge 7 fixed on a big beam to tip forward is composed of the driver's cab 6; the worm wheel 3 is engaged with the worm screw 2. The utility model has the advantages of simple structure, low cost, high manufacturability and safety, convenient operation and installation, good self-locking performance, strong versatility, etc., and the front-tipping lockover mechanism for a flat-head vehicle driver's cab is applicable for various types of flat-head vehicles.

Description

The flat fronted car operator's compartment switching mechanism that leans forward
The utility model relates to the preceding tilting mechanism of a kind of operator's compartment, belongs to the vehicular spare parts field.
The existing cab-over-engine vehicle operator's compartment switching mechanism that leans forward has fluid pressure type, helical spring type, types such as compound hinge parallel mechanism (patent No. CN86-2-05242), torsion bar balance spring formula.Wherein the fluid pressure type mechanism that leans forward is easy to operate, but the cost height only is used for heavy motor vehicle usually.The helical spring type mechanism's manufacturability that leans forward is bad, is eliminated substantially.Compound hinge parallel four-bar linkage mechanical property is not good enough, and four-bar mechanism lay across the driving engine top after operator's compartment leaned forward, and both driving engine can't be sling, and had also limited the operational space of on-site maintenance, uses comparatively inconvenience.The torsion bar balance spring formula mechanism that leans forward at home and abroad is used widely, and the present cab-over-engine vehicle below 8 tons and 8 tons of China substantially all is to adopt this mechanism.But this mechanism still deposits the Technology for Heating Processing complexity, is difficult to reach designing requirement; The elastic rod fatiguability fractures and the life-span weak point; Because the elastic rod 10-15 degree of only upspringing, and the manpower of still needing during operation cooperates and could realize overturning and resetting.And difficulty transfers to the optimum position when using, and there is safety hazard in the no self-locking of elastic rod upset.When emergency brake, be prone to operator's compartment and lean forward automatically, shortcoming such as safety is relatively poor.
The purpose of this utility model is to overcome the deficiency of prior art, and provides a kind of anufacturability good, operates light safety, can be between the 0-45 degree optional position stop and the flat fronted car operator's compartment of the self-locking switching mechanism that leans forward.
Summary of the invention of the present utility model is: this flat fronted car cab turning mechanism is combined by a quadric linkage and a worm-and-wheel gear.Quadric linkage is hinged by crank 4, an end and crank 4 that an end is fixed on the worm-wheel shaft, and the connecting rod 5 of the other end and operator's compartment 6 bottom-hinged, and as rocking bar and can form around being fixed on the lean forward operator's compartment 6 of upset of hinge 7 on the automotive frame.Be fixed on worm-and-wheel gear on the automotive frame 9 by handle 1, worm screw 2, form with worm screw 2 ingear worm gears 3.During use, drive worm screw 2 and drive worm gear 3 rotations with the handle 1 that spare tyre is installed, the flat key on the worm gear 3 drives the worm-wheel shaft rotation, and drive crank 4 and rotate synchronously this moment, and crank 4 promotes connecting rod 5, promotes operator's compartment 6 upsets through connecting rod 5 again.Operator's compartment is resetted.
Accompanying drawing 1 is the utility model transmission principle scheme drawing.
Accompanying drawing 2 is the utility model embodiment assembly drowing.
Accompanying drawing 3 is the cut-away view of the utility model accompanying drawing 2 in the A-A position.
The utility model structure is not limited only to shown in the accompanying drawing.
The utility model is described in further detail below in conjunction with accompanying drawing: this flat fronted car operator's compartment switching mechanism that leans forward is combined by a quadric linkage and a worm-and-wheel gear.Quadric linkage is hinged by crank 4, an end and crank 4 that an end is fixed on the worm-wheel shaft, and the connecting rod 5 of the other end and operator's compartment 6 bottom-hinged, and as rocking bar and can form around being fixed on the lean forward operator's compartment 6 of upset of hinge 7 on the automotive frame.The independently worm case of being made up of worm screw 2 and worm gear 3 is by the semicircle deck 8 on the case spare, with be fixed on automobile the 21 and drive the moving worm screw 2 of snail and drive worm gear 3 rotations, flat key on the worm gear 3 drives the worm-wheel shaft rotation, drive crank 4 and rotate synchronously this moment, and promote operator's compartment bottom 6 around hinge 7 upsets through connecting rod 5.The driving sky is resetted.
The utility model compared with prior art has the following advantages: (1) is simple and reliable for structure, can be 0-45 degree staying at random location and self-lockings. (2) good manufacturability, with low cost. (3) the whole adjustment side of peace Just, security is good. (4) simple to operate and laborsaving, required according to measuring and calculating upset cab over engine below 8 tons Be 5-10KG energetically. (5) versatility is good, only needs suitably to adjust installation site and the connecting rod of worm gear case Length is namely applicable to the flat fronted vehicle of different model.

Claims (1)

  1. A kind of flat fronted car operator's compartment switching mechanism that leans forward is characterized in that this switching mechanism is combined by a quadric linkage and a worm-and-wheel gear; Quadric linkage is hinged by crank 4, an end and crank 4 that an end is fixed on the worm-wheel shaft, and the connecting rod 5 of the other end and operator's compartment 6 bottom-hinged, and as rocking bar and can form around being fixed in the lean forward operator's compartment 6 of upset of hinge 7 on the automotive frame; Be fixed on worm-and-wheel gear on the automotive frame by handle 1, worm screw 2, form with worm screw 2 ingear worm gears 3.
CN 98212858 1998-03-04 1998-03-04 Front-tipping lockover mechanism for flat-head vehicle driver's cab Expired - Fee Related CN2320486Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 98212858 CN2320486Y (en) 1998-03-04 1998-03-04 Front-tipping lockover mechanism for flat-head vehicle driver's cab

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 98212858 CN2320486Y (en) 1998-03-04 1998-03-04 Front-tipping lockover mechanism for flat-head vehicle driver's cab

Publications (1)

Publication Number Publication Date
CN2320486Y true CN2320486Y (en) 1999-05-26

Family

ID=33967014

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 98212858 Expired - Fee Related CN2320486Y (en) 1998-03-04 1998-03-04 Front-tipping lockover mechanism for flat-head vehicle driver's cab

Country Status (1)

Country Link
CN (1) CN2320486Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT10902U3 (en) * 2009-07-20 2010-05-15 Man Nutzfahrzeuge Oesterreich COMMERCIAL VEHICLE WITH A TILTED CAB
CN109883732A (en) * 2019-03-28 2019-06-14 潍柴动力股份有限公司 Brake pedal experimental control device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT10902U3 (en) * 2009-07-20 2010-05-15 Man Nutzfahrzeuge Oesterreich COMMERCIAL VEHICLE WITH A TILTED CAB
CN109883732A (en) * 2019-03-28 2019-06-14 潍柴动力股份有限公司 Brake pedal experimental control device

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C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee