Abstract: A vehicle body front structure includes: a side frame extending in a front-rear direction in a front part of a vehicle body; a branch frame provided on a vehicle width direction outer side of the side frame; and a coupling member attached to and between the side frame and the branch frame. The branch frame has a rear end portion housed in the side frame and fixed to a vehicle width direction inner wall portion of the side frame. A ridgeline formed on the branch frame is aligned with a ridgeline formed on the inner wall portion of the side frame in the front-rear direction. A ridgeline formed on the coupling member is aligned with a ridgeline formed on an outer wall portion of the side frame in the front-rear direction.

Abstract: A vehicle body front structure includes a front sub-frame configured such that a gear box is fitted to a front part of the front sub-frame, an arm portion extending from a front part of the front sub-frame forward and outward in a vehicle width direction, an impact absorbing portion supported by the arm portion, and a horn portion arranged on a front side of the impact absorbing portion.

Abstract: A vehicle body structure includes: a pair of front side frames disposed on a front side of a vehicle to be in parallel with each other along a vehicle front-rear direction; lower members and gussets (load receiving portions) disposed at front ends in the vehicle front-rear direction of the front side frames so as to extend outward in a vehicle width direction; front wheels disposed outward in the vehicle width direction of the front side frames; and right and left side sills extending in the vehicle front-rear direction. Vehicle-width-direction outer end portions of the load receiving portions are positioned outward in the vehicle width direction of vehicle-width-direction inner end portions of the front wheels, and vehicle-width-direction outer end portions of the front wheels are positioned outward in the vehicle width direction of vehicle-width-direction inner end portions of front ends in the vehicle front-rear direction of the side sills.

Abstract: A damper housing includes an upper-wall-plate and an upper-wall-reinforcement-plate. A plurality of collars through which fastening members for attaching a damper are interposed between the upper-wall-plate and the upper-wall-reinforcement-plate. The collars are disposed on a circumference around the damper. An upper section of the damper is fastened and fixed to the upper-wall-reinforcement-plate and the upper-wall-plate by the fastening members. A concave section is formed in at least one of the upper-wall-plate and the upper-wall-reinforcement-plate which are facing each other, the concave section being formed so as to protrude toward the facing upper-wall-plate or the upper-wall-reinforcement-plate. The concave section is disposed between the neighboring collars on the circumference on which the collars are disposed. The upper-wall-plate and the upper-wall-reinforcement-plate are coupled to the facing upper-wall-plate or the upper-wall-reinforcement-plate at the concave section.

Abstract: A vehicle body front structure includes a front sub-frame configured such that a gear box is fitted to a front part of the front sub-frame, an arm portion extending from a front part of the front sub-frame forward and outward in a vehicle width direction, an impact absorbing portion supported by the arm portion, and a horn portion arranged on a front side of the impact absorbing portion.

Abstract: A vehicle body front structure includes: a side frame extending in a front-rear direction in a front part of a vehicle body; a branch frame provided on a vehicle width direction outer side of the side frame; and a coupling member attached to and between the side frame and the branch frame. The branch frame has a rear end portion housed in the side frame and fixed to a vehicle width direction inner wall portion of the side frame. A ridgeline formed on the branch frame is aligned with a ridgeline formed on the inner wall portion of the side frame in the front-rear direction. A ridgeline formed on the coupling member is aligned with a ridgeline formed on an outer wall portion of the side frame in the front-rear direction.

Abstract: A vehicle body structure includes: a pair of front side frames disposed on a front side of a vehicle to be in parallel with each other along a vehicle front-rear direction; lower members and gussets (load receiving portions) disposed at front ends in the vehicle front-rear direction of the front side frames so as to extend outward in a vehicle width direction; front wheels disposed outward in the vehicle width direction of the front side frames; and right and left side sills extending in the vehicle front-rear direction. Vehicle-width-direction outer end portions of the load receiving portions are positioned outward in the vehicle width direction of vehicle-width-direction inner end portions of the front wheels, and vehicle-width-direction outer end portions of the front wheels are positioned outward in the vehicle width direction of vehicle-width-direction inner end portions of front ends in the vehicle front-rear direction of the side sills.

Abstract: A vehicle body structure includes a dash lower panel, an outrigger, a dash cross member, and a side sill. A jack up stiffener having lower compressive strength against a load from the front than the side sill is installed inside the side sill. The outrigger is coupled to a front end part of the jack up stiffener. The dash cross member is coupled to a front end part of the side sill.

Abstract: A vehicle body structure having an increased capability to absorb impact in a front end of a tunnel member. The vehicle body structure includes a dash lower panel, a dash cross member and the tunnel member. The dash cross member has a convex shape with a central portion located forward of both ends in the vehicle width direction in plan view. The tunnel member has a tunnel closed cross-sectional portion constituting a part of the central portion of the dash cross member, a front fragile portion provided forward of the tunnel closed cross-sectional portion, and a rear tunnel member provided rearward of the tunnel closed cross-sectional portion. The front fragile portion has a lower compressive strength than that of the rear tunnel member, against a load from the front.

Abstract: A vehicle body structure having an increased capability to absorb impact in a front end of a tunnel member. The vehicle body structure includes a dash lower panel, a dash cross member and the tunnel member. The dash cross member has a convex shape with a central portion located forward of both ends in the vehicle width direction in plan view. The tunnel member has a tunnel closed cross-sectional portion constituting a part of the central portion of the dash cross member, a front fragile portion provided forward of the tunnel closed cross-sectional portion, and a rear tunnel member provided rearward of the tunnel closed cross-sectional portion. The front fragile portion has a lower compressive strength than that of the rear tunnel member, against a load from the front.

Abstract: A vehicle body structure includes a dash lower panel including a wheel-arch-shaped portion that constitutes a portion of a wheel arch and separating a power unit chamber from a vehicle interior, a reinforcing panel covering the wheel-arch-shaped portion from a side of the vehicle interior, and a side sill extending in a front-rear direction and having a front end portion connected to an end portion in a vehicle width direction of the dash lower panel. The reinforcing panel includes a horizontal closed cross-section defining portion that defines a closed cross-section extending in the vehicle width direction in combination with the wheel-arch-shaped portion and a vertical closed cross-section defining portion that defines a closed cross-section extending in a vertical direction in combination with the wheel-arch-shaped portion. The horizontal closed cross-section defining portion and the vertical closed cross-section defining portion intersect each other.

Abstract: A vehicle body structure includes a dash lower panel, an outrigger, a dash cross member, and a side sill. A jack up stiffener having lower compressive strength against a load from the front than the side sill is installed inside the side sill. The outrigger is coupled to a front end part of the jack up stiffener. The dash cross member is coupled to a front end part of the side sill.

Abstract: A vehicle body structure includes a dash lower panel including a wheel-arch-shaped portion that constitutes a portion of a wheel arch and separating a power unit chamber from a vehicle interior, a reinforcing panel covering the wheel-arch-shaped portion from a side of the vehicle interior, and a side sill extending in a front-rear direction and having a front end portion connected to an end portion in a vehicle width direction of the dash lower panel. The reinforcing panel includes a horizontal closed cross-section defining portion that defines a closed cross-section extending in the vehicle width direction in combination with the wheel-arch-shaped portion and a vertical closed cross-section defining portion that defines a closed cross-section extending in a vertical direction in combination with the wheel-arch-shaped portion. The horizontal closed cross-section defining portion and the vertical closed cross-section defining portion intersect each other.

Abstract: A vehicle body structure (10) is provided with: an exhaust pipe (18) disposed between a fuel container (16) and a right framework member (12) so as to extend in the front-rear direction of the vehicle body; and a slide member (23) provided to the framework side wall (25) of the right framework member (12). The slide member (12) is provided to the portion (27) of the framework side wall (25), which is overlapped by the fuel container (16) and a chamber (42) in the width direction of the vehicle. The slide member (23) has a slide slope section (64). The slide slope section (64) is tilted inward in the width direction of the vehicle from the lower end (64b) toward the upper end (64a) so as to approach the fuel tank (16).

Abstract: A floor panel of a vehicle body is provided with bulging sections in which seats are disposed to the left and right of a tunnel section, and a rear tunnel cross member extending in the vehicle width direction at the rear ends of the bulging sections. The vehicle body is provided with left and right floor extensions set further toward the tunnel section along a dashboard lower relative to the front side frames, floor frames extending so as to span between the floor extensions and the rear tunnel cross member and having a predetermined distance in the vehicle body vertical direction from a rear floor panel, and an energy container placed below the bulging sections and supported on the floor frames. The floor frames are fixed to the vehicle body so as to be capable of being removed from the below the vehicle body.

Abstract: A vehicle body structure (10) is provided with: an exhaust pipe (18) disposed between a fuel container (16) and a right framework member (12) so as to extend in the front-rear direction of the vehicle body; and a slide member (23) provided to the framework side wall (25) of the right framework member (12). The slide member (12) is provided to the portion (27) of the framework side wall (25), which is overlapped by the fuel container (16) and a chamber (42) in the width direction of the vehicle. The slide member (23) has a slide slope section (64). The slide slope section (64) is tilted inward in the width direction of the vehicle from the lower end (64b) toward the upper end (64a) so as to approach the fuel tank (16).

Abstract: A floor panel of a vehicle body is provided with bulging sections in which seats are disposed to the left and right of a tunnel section, and a rear tunnel cross member extending in the vehicle width direction at the rear ends of the bulging sections. The vehicle body is provided with left and right floor extensions set further toward the tunnel section along a dashboard lower relative to the front side frames, floor frames extending so as to span between the floor extensions and the rear tunnel cross member and having a predetermined distance in the vehicle body vertical direction from a rear floor panel, and an energy container placed below the bulging sections and supported on the floor frames. The floor frames are fixed to the vehicle body so as to be capable of being removed from the below the vehicle body.

Abstract: The olefin polymerization catalyst of the invention is formed from a Group IVB transition metal compound represented by the following formula (I) and an organoaluminum oxy-compound or a compound which reacts with the transition metal compound to form an ion pair.

Abstract: The olefin polymerization catalyst of the invention is formed from a Group IVB transition metal compound represented by the following formula (I) and an organoaluminum oxy-compound or a compound which reacts with the transition metal compound to form an ion pair. In the olefin polymerization process of the invention using this catalyst or a catalyst formed from a Group IVB transition metal compound represented by the following formula (II) and an organoaluminum oxy-compound or a compound which reacts with the transition metal compound to form an ion pair, an olefin (co)polymer having a high molecular weight can be obtained with high polymerization activities, and besides an olefin copolymer having a high comonomer content can be obtained even if a comonomer is used in a small amount. ##STR1## wherein, M is a transition metal of Group IVB, at least one of R.sup.1 is an aryl group and the remainder is hydrogen or the like, R.sup.2 is hydrogen, an alkyl group or the like, R.sup.3 and R.sup.

Abstract: Disclosed is a novel transition metal compound represented by the following formula: ##STR1## wherein M is a transition metal, X is halogen or the like, R.sup.1 is a hydrocarbon group or the like, R.sup.2 is an aryl group substituted with a halogenated hydrocarbon group, and Y is a divalent silicon-containing group or the like.Also disclosed are an olefin polymerization catalyst component comprising the transition metal compound, an olefin polymerization catalyst comprising the olefin polymerization catalyst component, and a process for olefin polymerization using the olefin polymerization catalyst.An olefin polymerization catalyst component having high polymerization activity can be formed from the transition metal compound. By the use of the olefin polymerization catalyst or the process for olefin polymerization, polyolefins having a high melting point and a high molecular weight can be prepared with high polymerization activity.