A hub removal assembly for disengaging a hub stuck to an axle. The hub removal assembly includes a rectangular bar having a central sinkhole. An elongated lead screw having a proximal end and a distal end. The proximal end of the lead screw is transversely screwed into the central sinkhole. The distal end of the elongated lead screw is configured as a head that can be turned by a pneumatic tool.

A hub removal assembly for disengaging a hub stuck to an axle. The hub removal assembly includes a rectangular bar having a central sinkhole. An elongated lead screw having a proximal end and a distal end. The proximal end of the lead screw is transversely screwed into the central sinkhole. The distal end of the elongated lead screw is configured as a head that can be turned by a pneumatic tool.

A CPU of a control device provided in a traveling unit causes a display to display information indicating that it is necessary to mount an energy absorbing unit capable of absorbing collision energy in a case where it is determined that a vehicle cabin forming unit is for the purpose of carrying a person, and causes the display to display information indicating that it is not necessary to mount the energy absorbing unit in a case where it is determined that the vehicle cabin forming unit is not for the purpose of carrying a person.

A CPU of a control device provided in a traveling unit causes a display to display information indicating that it is necessary to mount an energy absorbing unit capable of absorbing collision energy in a case where it is determined that a vehicle cabin forming unit is for the purpose of carrying a person, and causes the display to display information indicating that it is not necessary to mount the energy absorbing unit in a case where it is determined that the vehicle cabin forming unit is not for the purpose of carrying a person.

A roll cage is formed by joining tubes using an intermediate member with shoulder portions that insert within the tubes. Two inserts secure within the tubes, at least one being threaded. A threaded bolt is inserted through a first insert, through the intermediate member, and threaded into the second insert. Other tubes secure to the intermediate member such that the tubes together form a roll cage that may be secured to the chassis of a vehicle. For multi-row vehicles, a third insert secures in the second tube and has a threaded shaft protruding from it. The threaded shaft is passed through a second intermediate member and threaded into a threaded insert in a third tube and the second tube is rotated.

A roll cage is formed by joining tubes using an intermediate member with shoulder portions that insert within the tubes. Two inserts secure within the tubes, at least one being threaded. A threaded bolt is inserted through a first insert, through the intermediate member, and threaded into the second insert. Other tubes secure to the intermediate member such that the tubes together form a roll cage that may be secured to the chassis of a vehicle. For multi-row vehicles, a third insert secures in the second tube and has a threaded shaft protruding from it. The threaded shaft is passed through a second intermediate member and threaded into a threaded insert in a third tube and the second tube is rotated.

A system for vibration inspection of a vehicle for inspecting a quality of the vehicle assembled in a vehicle factory's in-line may include an inspection table for guiding and fixing the vehicle to a predetermined inspection position, a sensor detachable robot configured for attaching or detaching vibration sensors to various parts of the vehicle, a vibrating robot configured of generating vibration for the vibration inspection of the vehicle, and an inspection server that analyzes the vibration signal received from the vibration sensor during the vibration inspection of the vehicle, and determines the vehicle to be in inspection pass if the vibration signal matches the normal signal set according to a natural vibration frequency characteristic of each part of the vehicle, and determines the vehicle to be in inspection fail if the vibration signal does not match the normal signal.

The analysis method of optimizing a joint location of an automotive body of this disclosure is to determine an additional welded point 75 to be added to an automotive body frame model 31, including: an automobile model generation step S3 to generate an automobile model by joining the automotive body frame model 31 to a chassis model 51 via a joining portion; a driving analysis step S5 to perform a driving analysis of the automobile model to acquire a load generated at the joining portion during driving; an optimization analysis model generation step S7 to generate an optimization analysis model 71 by setting welding candidates 73 on the automotive body frame model 31; an optimization analysis condition setting step S9 to set optimization analysis conditions; and an optimization analysis step S11 to apply the load generated at the joining portion to the optimization analysis mode 71 to select an additional welded point 75 that satisfies the optimization analysis conditions from the welding candidates 73.

The analysis method of optimizing a joint location of an automotive body of this disclosure is to determine an additional welded point 75 to be added to an automotive body frame model 31, including: an automobile model generation step S3 to generate an automobile model by joining the automotive body frame model 31 to a chassis model 51 via a joining portion; a driving analysis step S5 to perform a driving analysis of the automobile model to acquire a load generated at the joining portion during driving; an optimization analysis model generation step S7 to generate an optimization analysis model 71 by setting welding candidates 73 on the automotive body frame model 31; an optimization analysis condition setting step S9 to set optimization analysis conditions; and an optimization analysis step S11 to apply the load generated at the joining portion to the optimization analysis mode 71 to select an additional welded point 75 that satisfies the optimization analysis conditions from the welding candidates 73.

A method of leak-tightness testing a motor vehicle body that includes: a. fitting of electrically conductive contacts to at least one inner side of the motor vehicle body, and b. applying an electrical voltage between the contacts, c. applying water to at least a portion of at least one outer side of the motor vehicle body, and d. monitoring the voltage applied between the contacts to detect any drop in voltage that may occur, wherein at least one of the electrically conductive contacts comprises a lacquer composition comprising an organic binder and at least one electrically conductive additive.