56results about How to "Reliable attraction" patented technology

A vacuum suction apparatus is equipped with a body having a supply port, and a pad provided on a lower portion of the body to which a workpiece can be attracted under suction. The pad is constituted from a base plate accommodated in a space of the body, a flexible intermediate plate provided on a lower portion of the base plate, and a suction sheet body disposed on a lower portion of the intermediate plate and having a sheet that attracts the workpiece under suction. In addition, the base plate, the intermediate plate and the suction sheet body are stacked along an axial direction of the body. The rigidity of the base plate is highest, whereas the rigidities of the intermediate plate and the suction sheet body are lower in this order, and the flexibilities thereof are greater in this order from the base plate.

A vacuum suction apparatus is equipped with a body having a supply port, and a pad provided on a lower portion of the body to which a workpiece can be attracted under suction. The pad is constituted from a base plate accommodated in a space of the body, a flexible intermediate plate provided on a lower portion of the base plate, and a suction sheet body disposed on a lower portion of the intermediate plate and having a sheet that attracts the workpiece under suction. In addition, the base plate, the intermediate plate and the suction sheet body are stacked along an axial direction of the body. The rigidity of the base plate is highest, whereas the rigidities of the intermediate plate and the suction sheet body are lower in this order, and the flexibilities thereof are greater in this order from the base plate.

The invention provides a chain conveyor system capable of avoiding damages and vibration noise by securely attracting and retaining metallic magnetic articles in inclined conveyor lines or slippery wet conveyor lines and of providing ready transfer or relay of the articles to other conveyors or equipment also in a conveyor terminal carry-out area. The chain conveyor system comprises a conveyor chain having article-attracting magnet pieces for attracting and retaining articles on loading surfaces thereof and an article-separating device that is disposed coaxially with a sprocket wrapped by and engaging with the conveyor chain and has article-separating magnet pieces that cut the attraction of the article-attracting magnet pieces with the articles on an outer circumferential parts of a free roller.

A recording apparatus includes a recording unit for recoding on a recording medium by ejecting ink, a conveyor belt for transporting the medium, first and second electrode groups including a plurality of electrodes inside the conveyor belt, a charging unit for charging the first and second electrode groups to provide a potential difference between the first and second electrode groups in order to generate an electrostatic force for attracting the medium to the conveyor belt, a duplex transport unit for turning over the medium transported by the conveyor belt from a first surface upward to a second surface upward and delivering the medium to the conveyor belt with the second surface upward, and a control unit for controlling the charging unit so that a difference between the potentials of the first and second electrode groups during transportation of the medium with the second surface upward is different from that during transportation of the medium with the first surface upward.

The present invention is relates to a polishing method for polishing a semiconductor wafer (W) by pressing the semiconductor wafer (W) against a polishing surface (10) with use of a top ring (23) for holding the semiconductor wafer (W). A pressure chamber (70) is defined in the top ring (23) by attaching an elastic membrane (60) to a lower surface of a vertically movable member (62). The semiconductor wafer (W) is polished while a pressurized fluid is supplied to the pressure chamber (70) so that the semiconductor wafer (W) is pressed against the polishing surface (10) by a fluid pressure of the fluid. The semiconductor wafer (W) which has been polished is released from the top ring (23) by ejecting the pressurized fluid from an opening (62a) defined centrally in the vertically movable member (62).

The present invention is provided with: a body (10) having built therein a suction unit for suctioning garbage; and a side suction part unit (80) that is rotatably provided on the body (10) via a rotating shaft (91), and that cleans walls and corners by suction. The side suction part unit (80) has a tip part (100a) having a triangular shape the tip of which protrudes, a guide member (101) providedon the tip part (100a), a suction air path that communicates with the suction unit, and a longitudinal extension mechanism. Accordingly, the longitudinal extension mechanism moves the tip part (100a)of the side suction part unit (80) along a wall. In addition, the guide member (101) reduces obstruction of the travel of the body (10). As a result, garbage on walls and in corners can be suctionedwith greater certainty.

A screwdriver bit assembly includes a magnetic ring mounted in a front end of a sleeve hole of a sleeve. A retaining ring is made of a material more rigid than the sleeve, is mounted in the sleeve hole, and is located behind the magnetic ring. A screwdriver bit includes an insertion end, an extending section behind the insertion end, a flange section behind the extending section, and a clamping section behind the flange section. The front end of the screwdriver bit extends through the sleeve hole of the sleeve, the retaining ring, and the magnetic ring. The insertion end extends beyond the sleeve and is located in front of a front end face of the sleeve. The flange section abuts the retaining ring. The clamping section is held by a holding device mounted on the sleeve, providing a holding force towards a longitudinal axis of the sleeve hole.

The invention discloses a method for trapping and killing grasshoppers. The method is characterized by comprising steps that a, a group of grasshopper trapping and killing devices is arranged in grasshopper gathering regions, a metal stopping net is arranged in a grasshopper killing tank of each grasshopper trapping and killing device, a group of heater and fixing sleeve is arranged on a lower tank plate of each grasshopper killing tank and is positioned on the left of the corresponding metal stopping net, a brush stained with sex pheromone is inserted in each fixing sleeve, a grasshopper outlet is vertically formed in the lower tank plate of each grasshopper killing tank and is positioned on the right of the corresponding metal stopping net, grasshopper collecting components are fixed onto the grasshopper outlets, exiting preventive assemblies are arranged in the grasshopper killing tanks, and each exiting preventive assembly comprises horizontal beams and exiting preventive sheets; b, inspection staffs inspect grasshopper killing devices one by one every once in a while; c, the grasshoppers in the grasshopper collecting components are completely killed. The method has the advantages that the grasshoppers are attracted by the sex pheromone on the brushes and infrared radiation when heaters generate heat, and ultimately enter the grasshopper collecting components from the grasshopper outlets, accordingly, trapped and killed grasshoppers can be collected, and the grasshoppers can be killed conveniently and efficiently.

The invention provides a separating supply device with a head steel bar which can lead the head steel bar to be easily fetched out from a supporting hole on a fetching out position and improves the attracting maintaining rate in the supporting hole of the head steel bar. The invention is provided with a separating plate (9) which can rotate in hopper part (3) of the head steel bar that can store a plurality of small screws. On the outer circle part of the separating plate, a plurality of supporting holes (9b) that can be embedded with the head steel bar are collocated in equal distance. The supporting holes (9b) on the corresponding position of the head steel bar stored in the hopper part are communicated with an air absorption hole (5a) used for maintenance; besides, the supporting hole (9b) on a fixed fetching out position is communicated with an air absorption hole (5b) used for confirmation. Air is pumped in respectively from the absorption holes used for maintenance and confirmation. When maintaining the head steel bar in the supporting holes (9b) arranged on the fetching out position, the air absorption from the absorption hole used for confirmation and the air absorption from the absorption hole used for maintenance is continued.

The invention discloses a locust trap. A barrier mesh is disposed within a trap box. A group of heaters and fixing sleeves are vertically arranged on the inner surface of the lower portion of the trap box on the left of the barrier mesh. The heaters and the fixing sleeves are arranged side by side with one before another; the heaters are arranged on the right of the fixing sleeves; a brush is inserted into each fixing sleeve and dipped with sexual pheromone; the lower wall of the trap box on the right of the barrier mesh is provided with a locust exit; a locust collector is fixed under the locust exit; the periphery of a right opening of a cloth bag is fixed to the periphery of a right opening of the locust box; a left opening of the cloth bag fixedly sleeves the outside of a large opening end of an anti-exiting hopper. The sexual pheromone applied to the brushes and infrared generated by the heater during heating attract the locusts, the locusts enter the locust collector from the locust exit, and the locusts are collected accordingly and can be conveniently killed later; the locust trap allows the locusts to be killed conveniently and efficiently at low cost, and the whole killing process is basically unattended.