Abstract: Disclosed is a check-valve assembly for use in a vacuum system. The check-valve assembly of the present invention comprises a body having a plurality of through-holes formed therein while having different space characteristics. As a valve member rotates with a shaft fixed to the body, intake holes of the valve member selectively communicate with the through-holes. Accordingly, the check-valve assembly of the present invention can more quickly respond to vacuum characteristics required on site, which is advantageous.

Abstract: A device for locking a rod member is provided. The device includes a body section having a vertical hole therein, and a ring-type locking unit and a piston serially arranged along the hole, wherein the rod member is disposed in the hole to be axially movable through the locking unit and the piston. The locking unit may be a lock block including an outer ring having an inclined surface on one side thereof, thereby defining a wedge-type space, an inner ring coaxially disposed in one side of the outer ring and accommodating a pressurizing member interacting with the inclined surface, and a spring disposed in the other side of the outer ring so as to elastically connect the outer ring and the inner ring.

Abstract: A quick-release vacuum pump which is mainly applied to a vacuum transport system. The vacuum pump has a mechanism in which part of compressed air supplied for generating a vacuum state is stored firstly in a chamber, and then the vacuum state within the chamber is released when transportation is completed. When the vacuum state is released, a check valve is moved by the pressure of air that flows backward. The range of movement of the check valve is adjusted by a control means. An air filter is disposed at the lower end of the check valve. The release of the vacuum state is quick and controllable. Also, the filter is naturally filtered and cleaned.

Abstract: The present invention relates to a vacuum pump and, more specifically, to a vacuum pump that is designed to change the direction of an intake port formed on a side wall of a housing, according to necessity. The vacuum pump includes: a housing; an ejector part embedded in the housing; and a pressing means provided on the outside of the housing. Particularly, the housing includes two or more parts, including a main part that has the intake port, which are disposed in a line, wherein a stopping member is formed along a contact surface there between. This structure enables the main part to rotate, and thus the direction of the intake port can be changed.

Abstract: The present invention relates to an ejector assembly and a vacuum pump, the ejector assembly including a typical cylindrical vacuum ejector and a support part. The support part includes a first support having a supply line extending outwards from a hole in which a first end of the ejector is mounted, and a second support having a discharge line extending outwards from a hole in which a second end of the ejector is mounted. Further, the first and second supports facing each other are configured such that the outer circumferential surfaces thereof are in contact with the inner circumferential surface of a pipe member so as to form a space between the first and second supports, the space communicating with through holes. In the vacuum pump using the ejector assembly, the pipe member is a housing, and the space is a vacuum chamber formed in the housing.

Abstract: Disclosed is a check-valve assembly for use in a vacuum system. The check-valve assembly of the present invention comprises a body having a plurality of through-holes formed therein while having different space characteristics. As a valve member rotates with a shaft fixed to the body, intake holes of the valve member selectively communicate with the through-holes. Accordingly, the check-valve assembly of the present invention can more quickly respond to vacuum characteristics required on site, which is advantageous.

Abstract: Disclosed herein is a suction cup used in a vacuum system. The suction cup includes a hollow body, a skirt-shaped pad disposed under the body, and a ring-shaped clamp removably provided in the suction cup to couple the body with the pad. A concave ‘C’-shaped outer surface of the clamp compresses a contact portion of the body with the pad in opposite directions upwards and downwards while surrounding the contact portion, thus coupling the body with the pad.

Abstract: Disclosed herein is a suction cup used in a vacuum system. The suction cup includes a hollow body, a skirt-shaped pad disposed under the body, and a ring-shaped clamp removably provided in the suction cup to couple the body with the pad. A concave ‘C’-shaped outer surface of the clamp compresses a contact portion of the body with the pad in opposite directions upwards and downwards while surrounding the contact portion, thus coupling the body with the pad.

Abstract: A device for locking a rod member is provided. The device includes a body section having a vertical hole therein, and a ring-type locking unit and a piston serially arranged along the hole, wherein the rod member is disposed in the hole to be axially movable through the locking unit and the piston. The locking unit may be a lock block including an outer ring having an inclined surface on one side thereof, thereby defining a wedge-type space, an inner ring coaxially disposed in one side of the outer ring and accommodating a pressurizing member interacting with the inclined surface, and a spring disposed in the other side of the outer ring so as to elastically connect the outer ring and the inner ring.

Abstract: The present invention relates to a vacuum cup assembly designed to quickly and easily remove and mount a suction pad. The assembly comprises: a pipe-shaped body having a first passage for discharging air; a vacuum cup coupled to a lower end of the body; and a movable holder disposed between the body and the vacuum cup. Here, the vacuum cup includes a ring-shaped fastener, and a suction pad mounted on an outer surface flange of the fastener, wherein the holder resiliently presses and fixes the mounted suction pad against the fastener. Here, the inner space of the suction pad is in communication with the first passage of the body. The pressed and fixed state is negated when the holder is moved upwards, whereupon the suction pad can be easily removed and mounted.

Abstract: The present invention relates to a vacuum pump, and more particularly, to an inline vacuum pump. The inline vacuum pump according to the present invention comprises a cylinder-type housing, an ejector, and a guide which are mounted in series on the upper side and the lower side in the housing, and a gripper connector coupled to the lower portion of the housing. The guide is provided with a passage and a path through which compressed air is discharged and exhaust air is absorbed. According to the present invention, device design and production are easier than in the related art, and a vacuum is generated and maintained in a stable manner. Also, the ejector can be relatively freely selected and applied.

Abstract: The present disclosure provides a multiple band antenna for a vehicle able to receive multiple signals in various frequency bands, including radio, TV, mobile communication, GPS, telematics, and so forth, through one antenna. The multiple band antenna for a vehicle includes an elongated pole that is coupled to a base, the pole including: a connector having a connecting portion connected to a terminal of the base, a signal coil having one end portion connected to the connector and having a spirally wound helical portion, a bobbin fitted around the signal coil such that the signal coil is inserted therein, a coil member formed in the shape of a spirally wound coil and fitted around the bobbin, with one end portion connected to the connector; and a cover member covering the bobbin and the coil member.

Abstract: The present invention applies to a vacuum transfer system, and relates to an air control valve for controlling the supply of compressed air in a vacuum transfer system. More specially, the air control valve of the present invention is configured to execute a two-stage control. The two-stage control is realized by a piston operation method, in which, although the control is performed by compressed air supplied thereto, a first control unit is operated by an electronic control method, and a second control unit is operated by a pneumatic control method. In particular, the second control unit is operated by vacuum pressure supplied from the vacuum transfer system. The air control valve of this invention can realize improved operational stability, improved energy efficiency and improved operational precision.

Abstract: Disclosed herein is a C-shaped clamping device. The clamping device includes: a C-shaped clamp (20) having facing parts (22) on opposite ends thereof; a cylindrical member (30) inserted into a C-ring of the clamp; a coupler (40) installed in the clamp and passing through the facing parts of the clamp, thus providing force of grasping the member; and an interference ring (50) interposed between the facing parts of the clamp. The interference ring has an inner diameter equal to an outer diameter of the coupler and is inserted into the coupler. A stopper protruding into the clamp is provided on a portion of an outer circumferential edge of the interference ring. The cylindrical member has a depression formed around an outer circumferential surface of the cylindrical member. The depression receives the stopper of the interference ring therein.

Abstract: The present invention relates to a vacuum pump, and more particularly, to an inline vacuum pump. The inline vacuum pump according to the present invention comprises a cylinder-type housing, an ejector, and a guide which are mounted in series on the upper side and the lower side in the housing, and a gripper connector coupled to the lower portion of the housing. The guide is provided with a passage and a path through which compressed air is discharged and exhaust air is absorbed. According to the present invention, device design and production are easier than in the related art, and a vacuum is generated and maintained in a stable manner. Also, the ejector can be relatively freely selected and applied.

Abstract: The present invention relates to a gripper device which has multiple holding points. The gripper device according to the present invention comprises: a frame comprising a rotating shaft which is arranged in parallel; a holding means fixed by a bracket to one holding point on the rotating shaft; and a driving means which rotates the rotating shaft and the holding means. The gripper device effectively responds to holding points which vary depending on the type of article held so that the articles can be stably held.

Abstract: An antenna device for a vehicle and a manufacturing method thereof are provided. The antenna device includes an antenna coil disposed in a helical antenna shape having a substantially constant pitch interval and a connector disposed on a first end of the antenna coil. A cylinder member, electrically connected to the antenna coil, is disposed on a second end of the antenna coil. A first fixing member covers a portion of the connector and the first end of the antenna coil to fix the antenna coil to the connector. A second fixing member is filled into a hollow portion and a gap within the substantially constant pitch interval and a third fixing member covers the second end of the antenna coil. A cover member covers the antenna coil, a portion of the connector, the cylinder member, the first fixing member, the second fixing member and the third fixing member.

Abstract: A pin-type gripper adapted for holding and transferring a target made of soft material. The pin-type gripper includes: a cylinder unit; a pair of slide blocks which are obliquely disposed at the left and right sides of the end of a piston rod and extend in a skirt shape; and links which transmit the piston motion to the slide blocks. A pin which pegs a target is installed on an end of each slide block. One cylinder unit controls two slide members at the same time. Thus, the pin-type gripper is superior in structure, control, and economic performance to a typical gripper that requires two cylinders and a complicated design.

Abstract: Disclosed is a device for vacuum gripping that may be used in a vacuum transfer system. The vacuum gripping device includes a supply passage extending from the lower end of the sidewall of a gripper body having a discharge passage therein to a suction hole provided below the lower end of the discharge passage. Further, an air guide is mounted to the lower end of the gripper body. The air guide is designed to move compressed air only upward from the lower part of the discharge passage by providing a rounded structure (R) in the supply passage. Thus, the vacuum gripping device of this invention can prevent even a small amount of compressed air from undesirably flowing to a suction pad part placed in a lower part of the vacuum gripping device, so the gripping device can quickly and efficiently vacuum-hold an object.

Abstract: A quick-release vacuum pump which is mainly applied to a vacuum transport system. The vacuum pump has a mechanism in which part of compressed air supplied for generating a vacuum state is stored firstly in a chamber, and then the vacuum state within the chamber is released when transportation is completed. When the vacuum state is released, a check valve is moved by the pressure of air that flows backward. The range of movement of the check valve is adjusted by a control means. An air filter is disposed at the lower end of the check valve. The release of the vacuum state is quick and controllable. Also, the filter is naturally filtered and cleaned.