31results about How to "Inhibition of elastic deformation" patented technology

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).

Provided is a shock stopper made of polyurethane foam for a suspension device, which can prevent the generation of unpleasant abnormal sound caused by friction against a spring seat when the stopper acts. In the impact stopper (46) made of foamed polyurethane that elastically abuts against the cylinder to limit the excessive contraction displacement of the shock absorber when jumping, the large-diameter fitting portion (60) at the upper end and the axial compression The portion between the deformable ring-shaped narrowing portion (48), and the insertion portion (80) in the state of being inserted into the concave fitting portion (44) of the spring seat (42) in the state of compression deformation when the vehicle jumps On the outer peripheral surface, a diameter reduction inducing portion (82) is provided, which has a substantially inverted tapered shape whose outer diameter gradually decreases toward the upper side, and induces a diameter reduction deformation accompanied by compression deformation, and at least at the insertion portion An annular gap for diameter-reducing deformation is formed between the inner peripheral surface (72) of the center hole (47) of (80) and the piston rod.

Provided is a 3000 series aluminium alloy plate which exhibits heat-dissipation characteristics applicable to large lithium ion battery containers, and which also exhibits excellent moulding properties, shape fixability, and laser welding properties. This aluminium alloy plate is a cold-rolled annealed material which has: a component composition including over 0.2 mass% but less than 1.4 mass% of Fe, 0.5-2.0 mass% of Mn, over 0.2 mass% but not more than 1.1 mass% of Si, 0.05-1.0 mass% of Cu, and less than 0.05 mass% of Mg, the remainder comprising Al and impurities; a conductivity of over 45% IACS; a metallographic structure in which the number of second phase particles having an equivalent circular diameter of at least 2 µm is less than 1800/mm2; a 0.2% proof stress of at least 30 MPa but less than 85 MPa; and an elongation value of at least 10%. Otherwise, this aluminium alloy plate is a cold-rolled material which has: a conductivity of over 45% IACS; a metallographic structure in which the number of second phase particles having an equivalent circular diameter of at least 2 µm is less than 1800/mm2; a 0.2% proof stress of at least 90 MPa but less than 180 MPa; and an elongation value of at least 3%.

The invention discloses a method for compressing and compacting wood materials, and belongs to the field of wood material production and preparation. According to the method for compressing and compacting the wood materials, the wood materials are subjected to hot-pressing and setting treatment under the vacuum condition, and the processed wood materials are large in specific modulus, and the technical problems that, in an existing wood material compressing and compacting technology, the hot-pressing and setting time of is long, manufacturing efficiency is low, the color changes, and the sizeis not stable are solved; and the wood materials are subjected to compressing and compacting manufacture under the vacuum condition, so that bonding strength of the wood materials laminated with glueis also improved.

The present invention provides a parking mechanism for an automatic transmission, which can restrain elastic deformation of a parking rod when a pulling-out force is applied and improves strength reliability. According to the parking mechanism for the automatic transmission, through engaging or releasing between a pawl (13) which is equipped on the parking rod (10) and tooth part (21) of a parking gear (20), the parking gear (20) is rotated and fixed, wherein, the parking rod (10) is adjacent with the pawl (13), and a projection part (14) which contacts with the tooth part (21) through elastic deformation of the parking rod (10) is provided.

The invention discloses a bearing structural element, a supporting base, a connector assembly and a pipe joint assembly. The maximum counter force provided by the bearing structural element is the designed threshold of the bearing structural element under the effects of the external load, that is to say, when the external load is larger than the designed threshold of the bearing structural element, the bearing structural element deforms and provides the counter force equal to the designed threshold; the supporting base of the bearing structural element comprises at least one bearing structuralelement, and the connector assembly and the pipe joint assembly are each provided with the supporting base. The bearing structural element can effectively inhibit deformation as a rigid structural element when the external load is not high and lower than the designed threshold, can deform when the external load exceeds the designed threshold, and meanwhile provides the stable supporting counter force lower than the external load, and the bearing structural element can be applied to the supporting base, the connector assembly and the pipe joint assembly, plays a role of protecting the structure or key structural elements, and can be widely applied to the field of bridge design, building structure design, tunnel design and the like.

In order to prevent fretting wear based on elastic deformation in the axial direction of an input-side disk (2c) due to the thrust force of a pressing device, female spline parts (13a), which are formed in the middle section in the axial direction in the inner circumferential surface of a center hole (19) of an input-side disk (2c), and male spline parts (12a), which are formed in the outer circumferential surface at one end in the axial direction of an input rotary shaft (1b), are spline coupled to each other, and a disk-side mating surface part (22), which is formed at the portion of the inner circumferential surface of the center hole (19) which is adjacent to the other end of the female spline parts (13a), and a shaft-side mating surface part (23), which is formed at the portion of the outer circumferential surface of the input rotary shaft (1b) which is adjacent to the other end of the male spline parts (12a), are mated to each other with an interference fit.

The invention provides a clamping device, a motor, and a disk drive device. In the clamping device, a disk loading portion for loading a disk and a self-aligning portion for supporting the inner periphery of the disk are split parts. That is to say, the disk loading portion and the self-aligning portion are not continuous and respectively directly fixed on a shaft or indirectly fixed on the shaft via more than one part. Thus, relative to the surface used as a design reference, the disk loading portion and the self-aligning portion are respectively arranged at high position precision. Compared with the way of fixing a one-piece part comprising the parts like the disk loading portion on a position near to an upper end of the shaft, the load near to the upper end of the shaft is lightened. Thus, the elastic deformation near to the upper end of the shaft is suppressed. Therefore, the vibration and noise of the disk are suppressed during the rotating process.