摘要:
A piston seal (8) of a disc brake (20) can stabilize the amount of rollback of a piston (5) by reducing thermal expansion and a decrease in modulus of elasticity of the piston seal (8) caused by an increase in temperature, thereby preventing a driver from feeling that the brake operation is unnatural. The piston seal (8) is formed of a rubber composition in which at least 100 parts by weight or more of carbon black is added to 100 parts by weight of ethylene propylene rubber.
摘要:
The invention provides a boots for a resin constant velocity universal joint in which a different thickness portion is integrally formed in an inner diameter of a large diameter side end portion of a primarily molded resin bellows in accordance with a secondary molding. A resin bellows (8) constituted by a bellows portion (55), and a small diameter side end portion (40) and a large diameter side end portion (41) which are provided in both end sides of the bellows portion (55) is molded in accordance with a primary molding, and a different thickness portion (56) corresponding to a secondarily molded product is integrally formed in an inner periphery of the large diameter aide end portion (41) of the primarily molded resin bellows (8) by being secondarily molded within an injection metal mold (64). At this time, a molten material of the different thickness portion (56) is injected into a secondary molding space from an optional position of a thin portion.
摘要:
Two wiper rubber blades (1) are united with each other at lip portions (8) so as to form a tandem wiper rubber blade (11), and notches (12a, 12b) are provided on both sides of a common lip portion (13) at the center portion thereof. By providing the notches (12a, 12b), a joint portion of the two wiper rubber blades is formed, which enables the tandem wiper rubber blade to be easily torn.
摘要:
Provided are a coating agent for wiper blade rubber that demonstrates superior friction performance and wiping performance both initially and during use for extended periods, and imparts superior durability by inhibiting wear and the like, and wiper blade rubber using the same. The present invention relates to a coating agent for wiper blade rubber comprising a solid lubricant and a binder containing a polycarbonate-based polyurethane resin. In addition, the present invention also relates to wiper blade rubber provided with a coating layer composed of the coating agent for wiper blade rubber on both lateral surfaces of a lip portion of the wiper blade rubber.
摘要:
An ultrasonic atomizing unit is provided which can spray fine particles of a liquid farther without greatly increasing a voltage applied to a piezoelectric vibrator and using a fan. An annular atomizing member (1) is provided and ultrasonically vibrates a vibrating plate (12) with a piezoelectric vibrator (11) to atomize a liquid. The atomizing member (1) is elastically sandwiched and held by a casing (3) through a pair of annular elastic rings (2) that are in contact with the atomizing member (1). A maximum facing width in a radial direction between each annular elastic member and one surface of the atomizing member (1) on one side in the radial direction from the center of the atomizing member (1) is 40% of a radial direction width of the piezoelectric vibrator (11) on one side in the radial direction from the center of the piezoelectric vibrator (11).
摘要:
A joint pin 40 extending in an axial direction of an inner cylinder 32 is provided on the inside in a radial direction of the inner cylinder 32, a projecting portion 42 projecting outward in a radial direction of the joint pin 40 is provided to the joint pin 40, shoulder portions 42a are provided on both sides in an axial direction, a bearing 50 guiding a relative rotation of the joint pin 40 with respect to the inner cylinder 32 is provided between the inner cylinder 32 and the projecting portion 42, bent portions 33 bent inward in the radial direction of the inner cylinder 32 are provided on both sides of the inner cylinder 32 in the axial direction, and elastic members 60 are incorporated between the bent portions 33 and the shoulder portions 42a.
摘要:
A piston 30 of a pneumatic spring 17 is constituted by a first piston body 34 having an attachment cylinder portion 34a and a flange portion 34b, and by a second piston body 35 having a main cylinder portion 35a and a closing wall 35b. Thereby, rigidity of the second piston body 35 is enhanced by unifying the main cylinder portion 35a and the closing wall 35b, and a leak of compressed air from air chambers 31 and 41 to the outside can be definitely suppressed. In a shaping step of the piston 30, the air chamber 31 is formed by demolding from a side of the main cylinder 35a opposite to the closing wall 35b, so that a post-step of forming the air chamber 31 becomes unnecessary, and a manufacturing process of the piston 30 can be simplified.