55results about How to "Reduce impact sound" patented technology

A paper feeder includes: a multiple number of paper feed cassettes arranged abreast at approximately the same level in the sheet feed direction. These paper feed cassettes are formed into a unibody structure so that they can be pulled out altogether. The more upstream a paper feed cassette is located with respect to the sheet feed direction, the higher the level of the upper surface of the paper feed cassette is arranged. This arrangement affords a space over the downstream paper feed cassette, in which a feed path for recording paper picked up from a paper feed cassette located on the upstream side can be arranged.

The aim of the invention is to provide a hinge for reducing sound of wear and operation. The solution is in that an off / on side part, e.g., an off / on cover is arranged on a rotatable arm which is freely rotatably pivoted on a hinge box of a fixing side part in a body of a copying machine, etc., via a fulcrum. The hinge for applying moment of force on the off / on side part in an open direction comprises: a cam integrally arranged below a base part of the rotatable arm, a slide block received within the hinge box and the slide block can slide vertically, and a spring received within the slide block and contacting with the cam, elastically. Accordingly, the moment of force can be performed on the rotatable arm in the open direction when the rotatable arm switches from an off state to an on state with a designated angle.

A sound insulating floor structure comprises an underlying floor layer of a raised floor constructed by supporting a plurality of underlying floor panels at a predetermined height by means of a group of supporting legs installed on a foundation floor via elastic pedestals attached to the lower ends of the supporting legs, floor covering materials laid over the underlying floor layer, and intermediate materials laid between the underlying floor layer and the floor covering materials. The intermediate material is a hardboard or a high density fiberboard having the flexural strength of 35-50 [N / mm<2>], Young's modulus in flexure of 4,000-5,000 [N / mm<2>] and the density of 0.8-1.2 [g / cm<3>].

The invention relates to hardware door lock components, and provides a mute lock body with a damper. The collision sound generated by a lock dog when a door is closed can be reduced. According to the technical scheme, the mute lock body is provided with a box bottom assembly, an inclined lock dog, a reset spring, the damper and a poking peach. The front end of the box bottom assembly is provided with an inclined lock dog hole in the front end, provided with a fixing block, a guide groove and a sliding block in the middle and provided with a damper positioning hole in the rear; the rear end of the damper is provided with a capel; the damper is provided with a clamping ring in the middle and provided with a damping rod in the rear, and the end of the damping rod is provided with a positioning hook; the front end of the damper is fixedly embedded in the capel at the rear end of the inclined lock dog, the middle of the damper penetrates through a guide hole in the middle of the fixing block, and the positioning hook at the rear end of the damper is embedded into the damper positioning hole in the rear of the box bottom assembly; the damper is a wire diameter damper, the inclined lock dog can be driven to move backwards without resistance by rotating the poking peach, and the poking peach needs to overcome buffering resistance of the damper to return, so that it is avoided that the inclined lock dog rapidly returns to the start-stop position under the action of the spring.

The invention discloses a low-energy-consumption oilless silence air compressor. The low-energy-consumption oilless silence air compressor comprises at least one air cylinder assembly. Each air cylinder assembly comprises a piston and an air cylinder containing the piston, wherein a ceramic film layer is arranged on the inner wall of a cylinder sleeve of the air cylinder, the piston comprises a piston body, a composite material layer arranged on the outer side of the piston body in a sleeving manner, a piston ring embedded in the outer side of the composite material layer, and the piston ring and the composite material layer are made of the same materials and prepared through carbon material containing composite materials. During work, each piston reciprocates in the corresponding cylinder sleeve, each piston ring rubs with the ceramic film layer on the inner wall of the corresponding cylinder sleeve, the composite material layer on the outer side of each piston body plays a guiding role in the corresponding cylinder sleeve, and therefore the friction coefficient between each piston and the corresponding cylinder sleeve is reduced, and efficiency is improved.

The invention relates to a touch pen tip composite material, a touch pen and a forming method for the pen tip. The raw materials of the stylus tip composite material include powdered ultra-high molecular weight polyethylene, powdered low-density polyethylene, silicone oil, calcium stearate, lubricant, carbon black and light calcium carbonate. The nib forming method of the present invention adopts a sintering forming method, which is not affected by the poor fluidity of the ultra-high molecular weight polyethylene, and is not limited by the molecular weight. The present invention further researches and modifies the components of the stylus tip composite material, and by adding different components for synergistic cooperation, the resulting pen tip can be made with low noise and high fluency, and can obtain a user-friendly writing method similar to the traditional writing method. experience.

The invention belongs to the technical field of wooden doors, and particularly relates to a wooden door. The wooden door comprises an outer door plate, an inner door plate, a first-stage buffer mechanism and a second-stage buffer mechanism; the right end of the outer door plate is fixedly connected with the inner door plate through a connecting rod; the position between the inner door plate and the outer door plate is in a hollow shape, and the first-stage buffer mechanism is arranged on the periphery of the inner door plate and comprises a buffer frame and an extruding plate; the buffer frameis clamped between the outer door plate and the inner door plate, the inner surface of the buffer frame is fixedly connected with the extruding plate, and the buffer frame is opposite to a door frame; and the inner surface of the extruding plate is elastically connected with the inner wall of the periphery of the outer door plate through a spring, the extruding plate is in an L shape, and the lower surface of the extruding plate is provided with teeth. The wooden door is mainly used for solving the problems that in the prior art, when a wooden door is subjected to strong wind or manually pushed and impacted, a door frame generates large noise, a relatively quiet environment cannot be provided, and meanwhile the service life of the wooden door is also shortened due to impact.

Provided is a pneumatic tire capable of achieving a reduction in pattern noise without sacrificing off-road performance. In the tire, circumferential main grooves (3) are formed respectively in shoulder sections (1S) of a tread area (1) so as to extend in a tire-circumferential direction (T); lateral grooves (8) are formed in the shoulder sections (1S) so as to extend outwards in a tire-width direction from the circumferential main grooves (3) and to be arranged at a predetermined pitch in the tire-circumferential direction (T); and blocks (9) are formed in the shoulder sections (1S) by the circumferential main grooves (3) and the lateral grooves (8). The pneumatic tire includes fine grooves (10) each extending so as to connect each adjacent two of the lateral grooves (8) in the tire-circumferential direction (T), each fine groove (10) dividing the corresponding block (9) into an inner block (9A) and an outer block (9B). The outer block (9B) is offset with respect to the inner block (9A) in the tire-circumferential direction (T) by an amount ranging from 15% to 30% of the pitch length (L) at which the lateral grooves (8) are arranged.

An electromagnetic contactor which makes or breaks a contact by moving a moving core from a first position which is a wide gap away from a fixed core to a second position a narrow gap away from the fixed core by an electromagnetic force generated by an electric current flowing from a power source to an electromagnet, wherein an attraction force control unit is provided which allows a strong acceleration current (E1) to flow to the electromagnet for a specified time until an acceleration of the moving core at the second position reaches a preset value and allows an attraction current (E6) to flow to the electromagnetic at approximately the second position.

The present invention is a vehicle control device capable of appropriately performing control based on the rotation characteristics regardless of fluctuations in the rotation characteristics due to individual differences in rotation members. In the state where the rotation of the crankshaft (24) is locked by the engaging brake (36), torque (Tin) is applied to the damper device (rotation member) (26) by the power running control of the first motor generator (MG1) ) and measure the torsion angle (Φ) to detect rotational characteristics such as rigidity, and set various control values ​​related to the engine rotational speed (Ne) based on the detected rotational characteristics (for example, when the engine starts crankshaft rotation completion determination value, idle rotation speed during idle rotation control, etc.), therefore, regardless of fluctuations in rotation characteristics caused by individual differences in the vibration damping device (26), or changes over time, it can be based on the actual rotation speed. The characteristic appropriately performs various controls associated with the engine rotational speed (Ne).

The invention relates to a circular disc which is used on a hockey table; the circular disc is provided with a flat body and a circular flexible outer ring which is arranged at the periphery of the body; a ring-shaped space is formed between the body and the outer ring. When in use, a push disk is used for pushing the circular disc, and when being touched, the outer ring can flex and recover elastically. In this way, the rebounding speed of the circular disc can be accelerated and the collision noise of the circular disc can be lowered.