摘要:
A fixing hole and a locating hole of an automobile's roof are aligned in a predetermined direction while a fixing part and a locator pin of an antenna unit are aligned in a slightly different direction on the condition the antenna unit is oriented in the predetermined direction. The antenna unit is placed on the roof and a male screw is engaged with a female screw fixed to the fixing part to attach a fixing attachment. By tightening the female screw, the roof is held tight between the antenna unit and the fixing attachment and thereby the antenna unit is fixed to the roof. In this case, the antenna unit is oriented in the predetermined direction with a high degree of accuracy due to clearances between the fixing hole and the fixing part and between the locating hole and the locator pin.
摘要:
An antenna unit includes an antenna module that receives radio waves sent from a satellite or earth, a cover member that has enough inner space to house the antenna module and has an opened bottom surface, and a bottom plate that closes the opened bottom surface of the cover member, and the antenna unit is attached to a resin-made attachment part. A metal sheet is provided on a back surface side of the resin-made attachment part, and the antenna unit is adhesive bonded and fixed on a surface side of the resin-made attachment part correspondingly to an arrangement position of the metal sheet.
摘要:
A new attachment structure for an antenna unit includes a gasket that prevents entry of water and is configured to have an improved external appearance. An antenna unit includes an antenna module which receives radio waves transmitted from a satellite and a cover member which has inner space large enough to house the antenna module. The cover member has an opened bottom surface which joins with a bottom plate that closes the opened bottom surface of the cover member. A gasket covers at least a periphery of the bottom plate. The gasket comes into contact with the inner surface of the cover member to seal the inner space. Because the gasket does not have a cover portion which covers the outer surface of the cover member, the problem of reduced waterproofed quality when the cover portion is pulled can be prevented, while also providing a fine appearance.
摘要:
An antenna unit includes an antenna module that receives radio waves sent from a satellite or earth, a cover member that has enough inner space to house the antenna module and has an opened bottom surface, and a bottom plate that closes the opened bottom surface of the cover member, and the antenna unit is attached to a resin-made attachment part. A metal sheet is provided on a back surface side of the resin-made attachment part, and the antenna unit is adhesive bonded and fixed on a surface side of the resin-made attachment part correspondingly to an arrangement position of the metal sheet.
摘要:
An antenna element including first and second pole antenna elements is inserted in an antenna case. In the antenna case, a main circuit board having first and second surfaces opposite to each other is mounted. Mounted on the first surface of the main circuit board, a first antenna unit receives a first radio wave from a first kind of satellites. Mounted on the first surface of the main circuit board, a second antenna unit receives a second radio wave from a second kind of satellites. On the second surface of the main circuit board, a booster circuit for the first pole antenna element is mounted.
摘要:
A fixing hole and a locating hole of an automobile's roof are aligned in a predetermined direction while a fixing part and a locator pin of an antenna unit are aligned in a slightly different direction on the condition the antenna unit is oriented in the predetermined direction. The antenna unit is placed on the roof and a male screw is engaged with a female screw fixed to the fixing part to attach a fixing attachment. By tightening the female screw, the roof is held tight between the antenna unit and the fixing attachment and thereby the antenna unit is fixed to the roof. In this case, the antenna unit is oriented in the predetermined direction with a high degree of accuracy due to clearances between the fixing hole and the fixing part and between the locating hole and the locator pin.
摘要:
A washer 31 is mounted on a cable 20 at one end portion 21 and the washer 31 is staked to a skin of the cable 20. The skin of the cable 20 is coated with polytetrafluoroethylene or PTFE. The washer 31 is made of brass. Subsequently, a bushing member 32 is integrally molded on the washer 31 to the cable 20 by injection molding. The bushing member 32 is made of polyvinyl chloride or PVC. Thereby, a cable bush 30A is mounted on the cable 20 with cable bush 30A securely fixed to the cable 20.
摘要:
An antenna element including first and second pole antenna elements is inserted in an antenna case. In the antenna case, a main circuit board having first and second surfaces opposite to each other is mounted. Mounted on the first surface of the main circuit board, a first antenna unit receives a first radio wave from a first kind of satellites. Mounted on the first surface of the main circuit board, a second antenna unit receives a second radio wave from a second kind of satellites. On the second surface of the main circuit board, a booster circuit for the first pole antenna element is mounted.