Abstract:
Provided is a coiled spring assembly, capable of properly engaging a seat for a coiled spring as a seat member with a coiled spring to prevent forced interference between an end turn of the coiled spring and the seat for the coiled spring and increase durability. The coiled spring (3) has an end turn (9) (11) formed up to a first turn with a reduced diameter and a transition portion (13) (15) with a diameter gradually increasing from the end turn (9) (11) to a body portion (7), the seat (5) for the coiled spring has a seat portion (17), a mounting shaft portion (19), and an enlarged diameter portion (21), the mounting shaft portion (19) has an axial length defining a gap or a zero-gap between the enlarged diameter portion (21) of the seat (5) for the coiled spring and the end turn in a free state in which the end turn (9) (11) is fitted to the mounting shaft portion and the bearing surface (9a) (11a) of the end turn (9) (11) is in contact with the receiving surface (17a) of the seat portion (17), and the transition portion (13) (15) circumvents the enlarged diameter portion (21) while the bearing surface (9a) (11a) of the end turn (9) (11) is in contact with the receiving surface (17a) of the seat portion (17).
Abstract:
An identification medium, in which a pattern is clearly altered in observation through a right-handed circularly polarizing filter and observation through a left-handed circularly polarizing filter, is provided. The identification medium is formed by laminating a cholesteric liquid crystal layer 101, a »/4 plate 102, and a linearly polarizing filter layer 103, in that order, from an observing side. The cholesteric liquid crystal layer 101 is formed with a hologram and selectively reflects light. In an observation through a circularly polarizing filter that transmits the light reflected at the cholesteric liquid crystal layer 101, light reflected at a pattern printed layer 105 is not perceived due to the function of a circularly polarizing layer 104. Images are clearly altered by switching a right-handed and a left-handed circularly polarizing filter.
Abstract:
A lathe machining member is provided that, when a rare and expensive material is used as a raw material for forming a machined product, is capable of reducing waste of such material and reducing costs. For this purpose, a cylindrical core portion (3), at least a part of which is made of a noble metal alloy and which has a diameter larger than a maximum diameter of a shape obtained by lathe machining, and a hollow-cylindrical peripheral portion (2), which is made of a material different from the material of the core portion (3), are included. The core portion (3) is arranged in a hollow portion of the peripheral portion (2) with no space. The material applied to the peripheral portion (2) is a free-cutting material selected from a group of, for example, free-cutting brass, free-cutting phosphor bronze, free cutting nickel silver, and free-cutting beryllium copper. The noble metal alloy applied to the core portion (3) is, for example, alloy mainly consisting of silver (Ag), palladium (Pd), gold (Au), platinum (Pt), zinc (Zn), copper (Cu), iron (Fe), and nickel (Ni), alloy mainly consisting of palladium, silver, and copper, or alloy mainly consisting of silver, platinum, zinc, gold, and copper.
Abstract:
[Problem] To provide a fuel-cell-stack manufacturing method capable of increasing the load that a raised piece of a deformation absorption member can receive from the separator unit. [Solution] The deformation absorption member 20 used in the fuel-cell-stack 1 manufacturing method is disposed between an anode side separator 11 and a cathode side separator 12, and comprises a thin-board-like base material 21, and a plurality of raised pieces 22 that are provided raised from one surface 21a of the base material in a grid pattern. In the arrangement step, an extension portion (the free end portion 22b) extended from the proximal end (the fixed end portion 22a) of the raised piece provided on one surface of the base material is disposed so as to be abutted to the cathode side separator or the anode side separator. The setting step sets the interval between the anode side separator and the cathode side separator along the lamination direction X so that the deformation of the raised piece exceeds an elastic deformation region and enters a plastic deformation region, and is also in a region in which the proximal end that is moved due to the deformation will not come in contact with the cathode side separator or the anode side separator.
Abstract:
A coil spring manufacturing device (10) includes a mandrel (11) around which a wire (W) is wound, a feed mechanism (12) which feeds the wire (W) toward the mandrel (11), guide members (15, 16) which guide the wire (W), a chuck (13) which fixes a distal end (W1) of the wire (W), and a clamp mechanism (71). The clamp mechanism (71) sandwiches the wire (W) from both sides before the distal end (W1) of the wire (W) reaches the mandrel (11). Further, the clamp mechanism (71) can be rotated about a fulcrum (80) by rotation means, and can also be slid in a direction along an axis (X1) of the mandrel (11) by slide means. In a state in which the wire (W) is sandwiched by the clamp mechanism (71), the clamp mechanism (71) is rotated, and if necessary, is slid. Thereby, a bent portion (W2) for a negative pitch portion of a coil spring is formed at a part of the wire (W).
Abstract:
A hollow stabilizer (1) according to the invention is formed in a hollow shape and includes a bent portion (1c1, 1c2, ml-m5). With a thickness of an inner side of the bent portion (1c1, 1c2, m1-m5) being larger than a thickness of an outer side of the bent portion (1c1, 1c2, m1-m5), a hardness of the outer side of the bent portion (1c1, 1c2, m1-m5) is higher than a hardness of the inner side of the bent portion (1c1, 1c2, m1-m5) through quenching by cooling down after heating by electrical heating.
Abstract:
A coil spring modeling apparatus (20) includes an actuator unit (30) formed of a Stewart-platform-type parallel mechanism, a first inner load cell (41) accommodated in a first attachment member (21), a second inner load cell (42) accommodated in a second attachment member (22), and a rotation support mechanism (50). The actuator unit (30) is rotatably supported by the rotation support mechanism (50) about an axis (L 1 ). The first inner load cell (41) is arranged on the first seat adapter (27) coaxially with the rotation support mechanism (50), and detects an axial force acting on the lower spring seat (10A) and a moment. The second inner load cell (42) is arranged under the second seat adapter (28) coaxially with the rotation support mechanism (50), and detects an axial force acting on the upper spring seat (15A) and a moment.
Abstract:
For a laminate according to the present invention, a metallic coating is formed by accelerating copper powder containing 0.002% to 0.020% by weight of phosphorus and having been subjected to reduction treatment together with gas heated to a temperature lower than the melting point of the copper powder, spraying the copper powder onto the surface of a substrate while keeping the copper powder in the solid state, and depositing the copper powder on the substrate.
Abstract:
A stabilizer manufacturing apparatus for manufacturing a stabilizer (1) to which rubber bushes (3) are heat-bonded is provided with a curing furnace (R) in which high-frequency induction heating is performed, a conveyor (C) for conveying the stabilizer (1) in a conveying direction through the curing furnace (R), the rubber bushes (3) being pressure-bonded to bonding locations on the stabilizer (1) on which an adhesive layer is formed, power supply devices (10a, 10b, 10c, 10d) for supplying power to coils used in the high-frequency induction heating, and coils (5a1, 5a2, 5b, 5c, 5d) for generating a magnetic field in portions to be heated of the stabilizer (1) near the bonding locations and for heating the portions to be heated; the coils (5a1, 5a2, 5b, 5c, 5d) being separated by a predetermined distance from the portions to be heated of a predetermined number of stabilizers (1) conveyed in the conveying direction.