106results about How to "Improve bending rigidity" patented technology

Provided is a vehicle body bottom structure whereby collision load absorption performance during a narrow offset crash can be improved and retraction of the A-pillar can be minimized. A vehicle body bottom structure comprising a dashboard lower (62) for partitioning a vehicle interior (R) and a power installation interior (MR) and also for partitioning the vehicle interior (R) and a wheel house (WH), an A-pillar (7) erected at the vehicle-widthwise end of the dashboard lower (62), and a gusset (30) spanning between the dashboard lower (62) and the A-pillar (7); the gusset (30) being designed such that one end side is bonded to the dashboard lower (62) and grows farther from the dashboard lower (62) the nearer to the A-pillar (7), the other end side is bonded to the A-pillar (7), and a collapse space (S) having a substantially triangular shape in a plan view is formed in the portion enclosed by the dashboard lower (62), the A-pillar (7), and the gusset (30).

The cleaning instrument (10) comprises a head portion (10) and, adjacent thereto, a cleaning portion (14) having a shank (20), which is provided with bristles (22) on its external surface. In order that especially the tooth root canal or also a tooth interstice can be reliably cleaned using the cleaning instrument (10), the shank (20) is of integral construction with the bristles (22).

The invention provides eccentric swing type planetary gear device, deformation of bridge sections in an externally toothed gear and of outer teeth is suppressed, and this extends the life of tooth surfaces of external teeth (19), improves vibration characteristics, and drastically increases output torque while preventing a planetary gear device (11) from becoming large in size. To achieve the above, a ratio obtained by dividing the diameter (D) of pins constructing internal teeth (14) by the pitch (P) of the internal teeth (14) is made smaller to an extent where the tooth tops (19a) of the external teeth (19) are radially outside the inner periphery (15a) of an internally toothed gear (15), or alternatively, a meeting point (C) where the lines (S) of action of reaction forces (K) as drive force components meet is moved more radially outward than a conventional position so as to be positioned between a pin circle (P) passing the centers of all the internal teeth (pins) (14) and an outer end passing circle (G) passing radially outer ends of through-holes (22), or further alternatively, the amount (H) of eccentricity of an externally toothed gear (18) relative to an internally toothed gear is set not less than 0.5 times the radius (R) of the internal teeth (pins)(14).

The invention relates to a novel sleeper system, and belongs to the field of railway tracks. The novel sleeper system comprises a longitudinal beam type sleeper and an elastic vibration reduction track system, wherein the longitudinal beam type sleeper is formed by connecting longitudinal beam type sleeper units one by one in series; each two adjacent longitudinal beams of the longitudinal beam type sleeper are fixedly connected with each other in the lateral direction through a connecting piece; the opposite longitudinal beam end parts of each two adjacent longitudinal beam type sleeper units are connected with each other through a sleeper connecting piece; the elastic vibration reduction track system comprises a support saddle; the longitudinal beam type sleeper is mounted on the support saddle; and a vibration reduction facility is arranged between the bottom of the longitudinal beam type sleeper and the support saddle. The novel sleeper system has the advantages that due to the longitudinal sleeper, the bending rigidity of a track is enhanced, and deformation of the track caused by repeated load is reduced; as the lateral resistance of the longitudinal beams is enlarged, the irregularity in the vertical direction of the track is reduced, and the maintenance is reduced; and as the longitudinal beams are connected with each other in the longitudinal direction, the settlement of the track at the end parts of the longitudinal beams is provided from being enlarged or damaged easily; and as rail pads are arranged continuously, foundation shake, rolling noise and wave-like deformation of the track are reduced.

The invention discloses a heat-resistant self-sticking transposed wire for transformers and a manufacturing method thereof. Two rows of heat-resistant self-sticking enameled flat wires, having mutually contacted wide faces, are arranged within an outer insulating layer. Middle lining paper is arranged between the two rows of heat-resistant self-sticking enameled flat wires in such a manner that the middle lining paper is transposed in a same direction above and below the two rows of heat-resistant self-sticking enameled flat wires along their narrow faces. Each heat-resistant self-sticking enameled flat wire comprises a rectangular conductor, the cross section of the rectangular conductor is rounded, the outside of the rectangular conductor is coated with a primer film, and the outside of the primer film is coated with a finish film. From view of the cross section of the heat-resistant self-sticking enameled flat wires, the wide side of each primer film is concavely arced, and the outline of each finish film is a rectangle rounded. The heat-resistant self-sticking transposed wire has the advantages that mechanical strength of the transformer windings under high temperature can be effectively improved, short circuit resistance of the transformer windings is improved, and the service lives of the transformer windings are prolonged.

A fluid dynamic pressure bearing device that achieves high rigidity against moment without a reduction in assembly accuracy and bearing performance. In the bearing device, bearing sleeves are arranged in the axial direction and coaxiality of radial bearing surfaces formed on the inner peripheral surfaces of the bearing sleeves is set to 3 [mu]m or less. This secures width accuracy between the radial bearing gaps to prevent a reduction in bearing performance and a failure such as wear etc. caused by contact between a shaft member and the bearing sleeves. Further, a first radial bearing surface and a second radial bearing surface are provided on at least one sleeve, and this allows a sleeve assembly constructed from bearing sleeves to be supported at least three positions in the axial direction in a process of assembling the sleeve assembly. As a result, assembly work can be carried out with two bearing sleeves prevented from being bent in the middle and highly accurate coaxiality between both bearing sleeves secured.

The present invention provides a heavy load tyre capable of improving the durability of a tyre bead part. The heavy load tyre is equipped with a tyre 6 made of a tyre body cord fabric 6A, and the tyre body cord fabric 6A comprises a main body part 6a and a return part 6b. The tyre bead part 4 is equipped with a first reinforcing part 11 located at the side of the main body part 6a and a second reinforcing part 12 located at the side of the return part 6b, the first reinforcing part 11 comprises a first steel wire cord fabric layer 21 and a second first steel wire cord fabric layer 22 of which the cross-section is roughly U-shaped, and the second reinforcing part 12 comprises a first organic fiber cord fabric layer 31 covering the outer end at the side of the return part 6b of the second steel wire cord fabric layer from the axial outer side of the tyre and a second organic fiber cord fabric layer 32.

Provided is a marine hose status monitoring system which makes it possible to more definitively and more quickly detect damage to the inner-surface layer of a hose body. The present invention involves: embedding a leakage detection member (8) so as to extend between a first inner-surface layer (4A) and a second inner-surface layer (4B) of a marine hose (1) obtained by connecting a connection fitting (2) to both end sections in the lengthwise direction of a hose body (3) constructed by layering an inner-surface layer (4), a reinforcing layer (5), and an outer-surface layer (7), in order from the inner-circumferential side; connecting a leakage detector (10) to the leakage detection member (8); and determining by using the leakage detector (10) that damage has occurred to the inner-surface layer (4) when a fluid (F) flowing through a fluid channel (1a) of the hose body (3) contacts the leakage detection member (8).

The invention provides a pneumatic tire and a method of manufacturing the same, maintaining ride comfort and improving responsibility close to a neutral gear. The pneumatic tire (1) has at least one main groove continuously extending along the tire periphery and treads (12) contacted with a road surface at the outer surface (2S) of a tire surface part (2). The pneumatic tire (1) is provided with tread inward ribs (16) which are protruding toward the inner side in the tire radial direction and extend along the tire periphery at an inner cavity surface (10) of the treads (2) and in tread inner regions (15) of the inner side in the tire radial direction of the treads (12).