Abstract: A hydraulic apparatus for adjusting the timing of opening and closing of an engine valve includes a cam shaft driven to rotate in synchronization with the engine rotation. An actuator is installed on the cam shaft for changing the timing of opening and closing of an intake valve and/or exhaust valve using a control of a working oil supply. A slidable plunger is disposed in the actuator, and a rotor is disposed in the actuator to engage with the plunger by an engaging hole. A spring urges the plunger to move into the engaging hole to make an engagement therebetween when the engine is stopped, and when the engine begins to run, the working oil is supplied into the engaging hole to push out the plunger from the engaging hole to release the engagement between a housing of the actuator and the rotor. The engaging hole and the plunger have a surface parallel with a slide direction of the plunger, and a clearance therebetween is smaller than 0.17 mm when the engaging hole and plunger engage each other.

Abstract: Since conventionally the chip seal 14, 16 and the metallic blade spring 15, 17 have been formed separately, assembly efficiency has been poor (for example when the chip seal 14, 16 is inserted, the metallic blade spring 15, 17 detaches and falls out) which lowers productivity. As a result, the cross sectional shape of the chip seal 21 which pushes against the rotor 13 is made in the shape of a letter L.

Abstract: The invention provides a body structure for vehicles which is capable of enhancing the passenger-protecting performance without much increasing the vehicle weight by enhancing the stiffness around the vehicle interior with high efficiency. A body roof is equipped with a closed-in-cross-section roof reinforcement extending widthwise of the vehicle body along a roof panel, right-and-left end portions of the roof reinforcement being coupled to upper end portions of a right-and-left pair of closed-in-cross-section center pillars extending in upper-and-lower direction in side portions of the vehicle body, respectively.

Abstract: A hydraulic valve timing adjusting apparatus to be provided in a driving force transmission system for transmitting driving force to a camshaft with a cam for opening and closing an intake valve or an exhaust valve, comprising a housing assembly; a rotor provided so as to be relatively rotatable with respect to the housing assembly; hydraulic chambers formed between the rotor and the housing assembly; a convex member provided in one of the housing assembly and the rotor so as to be slidable therein; a recessed portion provided in the other one of the housing assembly and the rotor so as to be engageable with the convex member; an urging member for urging the convex member toward the recessed portion; and an oil passage which is able to supply oil pressure to the recessed portion; wherein when the oil pressure is supplied to one of the hydraulic chambers, the rotor is relatively rotated with respect to the housing assembly, and when the oil pressure is supplied to the recessed portion, the convex member is sli

Abstract: A rear body structure of a vehicle including right and left rear suspension towers, each jutting upward and sideways into a compartment so as to form a housing for supporting a rear suspension, has a gusset panel which extends transversely in the compartment between the rear suspension towers and is secured to a floor and the right and left rear suspension towers, a first panel and a second panel secured, respectively, to the right and left suspension towers from the front and the back and the gusset panel. These gusset panel and the first and second panels extend transversely in the compartment between the right and left rear suspension towers so as to provide a closed cross sectional hollow structure between and above the right and left rear suspension towers.

Abstract: A front chassis frame has a transversely extending front cross member at a front end of an automobile. The cross member has a closed cross section and a transversely extending corrugation formed on at least either an upper surface or a lower surface of the cross member.

Abstract: A side body structure of an automotive vehicle includes a center pillar extending vertically substantially at a center portion of the side body and a side sill constituted by a side sill inner panel and a side sill outer panel. The side body structure comprises a member provided longitudinally at a side and lower portion of the vehicle and including the side sill inner panel so as to form a closed cross section, and a cross member provided transversely at a lower portion of the vehicle and connected with the closed cross section member.

Abstract: According to a method and apparatus for multiple sheet detection for performing ON/OFF control of a multiple sheet detection function for sheets on the basis of use/non-use information set by keys (8), sheet data is fetched (5, 201) from one sheet fed for the first time. It is determined (5, 202) on the basis of the fetched sheet data whether multiple sheet feeding of the sheets can be discriminated by the multiple sheet detection function. A use/non-use state is checked (5, 204) by the keys when multiple sheet feeding can be discriminated by the multiple sheet detection function. An alarm is generated (205) on the basis of a check result.

Abstract: A side panel including automobile roof rail structure includes an inner panel formed of front and rear inner panels, an outer panel formed of front and rear outer panels, and an extended member extending rearwards from a rear end portion of the front inner panel. The extended member is provided with upper and lower flanges which are rigidly secured between the rear inner and outer panels so that two closed sections separated by the extended member are formed inside the roof rail.

Abstract: A pneumatic tire having excellent traction and braking performances is disclosed, which comprises a tread divided into island portions inclusive of at least one block row group by plural circumferential grooves and plural transverse grooves, and having plural sipes. In this type of the tire, the sipe is provided at its cut end with an escape hole having a size larger than that of the sipe.

Abstract: A pneumatic safety tire with a pair of annular rubber reinforcements having crescent sectional shape and applied to a tire carcass at tire sidewalls, the rubber of the reinforcements having a JIS hardness of not less than 70, a tensile stress (Mod.sub.25) after an aging test of not less than 10 kg/cm.sup.2, and a repulsive elasticity by Dunlop tripsometer of not less than 65%.

Abstract: A safety pneumatic tire which can improve running distance under punctured condition comprising an annular resilient reinforcing body having a maximum thickness corresponding to 4 to 9% of the tire maximum width and a JIS hardness of at least 60.degree. in which a ratio of the tire maximum width TW to the rim width RW is 1.0.ltoreq.TW/RW.ltoreq.1.3.

Abstract: A pneumatic radial tire having a ratio of the radius of curvature of inner surface of crown portion to the maximum width of the tire of 1.2/1 to 2.5/1, and provided at the sidewall portion with an annular protection rib projecting over the entire circumference of the tire and having a specifically limited cross-sectional shape is excellent in the puncture resistance at both of the crown portion and the sidewall portion.