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公开(公告)号：US5189435A
公开(公告)日：1993-02-23
申请号：US642195
申请日：1991-01-16
摘要： A retractable motorized multi-band antenna is adapted to receive signals in the AM/FM bands and to receive and transmit signals in a significantly higher frequency band such as that used for cellular telephone. In order to transfer the coaxial input signal to an output coaxial connector, a slip ring connector is provided. The slip ring connector is impedance matched to the antenna to create low VSWR at RF frequencies.
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公开(公告)号：US5187492A
公开(公告)日：1993-02-16
申请号：US723378
申请日：1991-06-28
申请人： Masaei Sato
发明人： Masaei Sato
CPC分类号： H01Q1/1214 , H01Q1/10
摘要： The first structural aspect for mounting a telescopic antenna for an automobile includes a nut surrounding the top end portion of a spacer pipe and engaging with a threaded portion cut on the outside of the top end portion of a base pipe; a flange and a collar provided on a conducting pipe and the spacer pipe respectively and clamped between a contact portion provided on the nut and the top rim of the base pipe; and a flat ring positioned between the flange and the collar. The second structural aspect for mounting a telescopic antenna for an automobile includes resilient protrusions defined on the spacer pipe; holes defined on the conducting pipe, for engaging with the resilient protrusions when the spacer pipe is inserted in the conducting pipe so that the spacer pipe can be kept in position; and a portion around the resilient protrusions having an inside diameter greater than that of the spacer pipe. Both aspects help secure easy sliding of the antenna rods.
摘要翻译： 用于安装用于汽车的伸缩式天线的第一结构方面包括围绕间隔管的顶端部分的螺母，并且与在基管的顶端部分的外侧切割的螺纹部分接合; 分别设置在导电管和间隔管上的凸缘和凸缘，并夹在设置在螺母上的接触部分和基管顶部边缘之间; 以及定位在凸缘和套环之间的平环。 用于安装用于汽车的伸缩式天线的第二结构方面包括限定在间隔管上的弹性突起; 限定在导管上的孔，用于当间隔管插入导管中时与弹性突起接合，使得间隔管能够保持在适当位置; 并且弹性突起周围的部分的内径大于间隔管的内径。 这两个方面都有助于确保天线杆的轻松滑动。
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公开(公告)号：US5168278A
公开(公告)日：1992-12-01
申请号：US852967
申请日：1992-03-17
申请人： Yutaka Morita
发明人： Yutaka Morita
摘要： An antenna device having a straight shaft extending from a mount member to be attached to an electronic device, and a cylinder member which comprises an antenna member and slidably fitted around the shaft in intimate contact therewith to define a generally airtight chamber by the outer end of the shaft and the inner surface of the cylinder member. The cylinder member is projectable outward along with the antenna member by an urging force when released from a lock member, the cylinder member being so projectable at a reduced speed by giving a negative pressure to the chamber.
摘要翻译： 具有从安装构件延伸以附接到电子设备的直轴的天线装置，以及包括天线构件并且可滑动地装配在轴上以与其紧密接触以形成大体上气密的腔室的气缸构件， 轴和缸体的内表面。 当从锁定构件释放时，气缸构件通过施加力与天线构件一起向外伸出，气缸构件通过向腔室施加负压而以可降低的速度投射。
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公开(公告)号：US5166695A
公开(公告)日：1992-11-24
申请号：US729666
申请日：1991-07-15
申请人： Hiang B. Chan , Her S. Tan
发明人： Hiang B. Chan , Her S. Tan
摘要： An auto-extending antenna for a portable radio having a housing which can be closed is inserted into an aperture within the housing. As the housing of a radio using the auto-extending antenna is opened, a toothed wheel attached to the opening portion of the housing is rotated. This toothed wheel is coupled to a second toothed wheel and causes the second toothed wheel to rotate. The second toothed wheel is connected to a first hollow tube which has two opposing slots extending along almost the entire length of the tube. An antenna is inserted into the hollow portion of the first tube, and two opposing nobs attached to the bottom of the antenna protrude through the opposing slots. A second hollow tube fits over the first hollow tube. The inner walls of the second hollow tube have two opposing screw paths winding up its entire length. The nobs extend into the screw paths. The second tube is secured to the housing of the radio. A rotation in the wheel causes the first tube, and therefore the antenna, to rotate within the second tube. As the first hollow tube rotates, the two nobs in the screw paths force the antenna up or down, depending on the direction of the rotation.
摘要翻译： 用于便携式无线电装置的自动延伸天线可以被封闭的外壳插入壳体内的孔中。 当使用自动延伸天线的收音机的外壳被打开时，安装在壳体的开口部分的齿轮旋转。 该齿轮联接到第二齿轮并使第二齿轮旋转。 第二齿轮连接到第一中空管，其具有沿着管的大致整个长度延伸的两个相对的槽。 将天线插入到第一管的中空部分中，并且附接到天线的底部的两个相对的突出部穿过相对的槽突出。 第二个中空管装在第一个中空管上。 第二中空管的内壁具有卷绕其整个长度的两个相对的螺旋路径。 螺丝孔延伸到螺丝孔中。 第二个管固定在收音机的外壳上。 轮中的旋转使得第一管，因此天线在第二管内旋转。 当第一个中空管旋转时，根据旋转方向，螺旋路径中的两个位置将天线向上或向下压迫。
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公开(公告)号：US5079558A
公开(公告)日：1992-01-07
申请号：US432842
申请日：1989-11-07
申请人： Noboru Koike
发明人： Noboru Koike
摘要： An extendable antenna device which is reducible in length when accommodated and ensures enough elasticity at an area of junction to a housing of a radio device. A first elongated flexible antenna section is connected slidably with a second antenna section. A hold mechanism is provided which holds the first antenna section against the housing of the radio device, and which accommodates and holds the first and second antenna sections in the housing of the radio device.
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公开(公告)号：US5072230A
公开(公告)日：1991-12-10
申请号：US249556
申请日：1988-09-26
摘要： An antenna element including a loading coil is telescopically extendable and retractable from within a housing tube. A characteristic impedance of a transmission line from a lower end part of the antenna element to a cable is equal to one of a cable. A part of the loading coil is reinforced. A branching filter, which is operatively connected between the antenna and a communication device using a different frequency band, suppresses a mutual interference between signals for the communication device. An antenna circuit, which is operatively connected between the antenna or a branching filter and the communication device, converts an impedance of a lower part in a frequency band, and reduces a loss due to a capacitive antenna impedance.
摘要翻译： 包括加载线圈的天线元件可从壳体管内伸缩和伸缩。 从天线元件的下端部到电缆的传输线的特性阻抗等于电缆之一。 加载线圈的一部分被加强。 可操作地连接在天线和使用不同频带的通信设备之间的分路滤波器抑制通信设备的信号之间的相互干扰。 可操作地连接在天线或分路滤波器和通信装置之间的天线电路转换频带中的下部的阻抗，并且减少由于电容性天线阻抗引起的损耗。
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公开(公告)号：US5062245A
公开(公告)日：1991-11-05
申请号：US458614
申请日：1990-02-23
申请人： Nigel A. Dent
发明人： Nigel A. Dent
IPC分类号： A47B88/49 , B66C1/00 , B66C1/10 , B66C23/687 , B66F3/28 , E04G25/04 , E04H12/18 , F16M11/26 , F16S3/00 , H01Q1/10
CPC分类号： H01Q1/10 , E04H12/182
摘要： A telescopic beam has a cross-section comprising an array of members (11-17) whose cross-section are of essentially spiral or modified spiral form such that members have lengths of identical (or broadly identical) cross-section (in profile and dimension) and constant (or broadly constant) cross-section along their axis. In the array the members are rotationally offset relative to one another about an axis (A) of the beam parallel to their own axis. In addition the members in the array engage one another such that relative linear movement between two adjacent members is constrained to be possible only in the direction of their axis. The array is assembled to produce the telescopic beam. The maximum number of members in any beam is dependent on the magnitude of the rotational offset incorporated in the particular section used. Any amount of rotational offset can be selected and so can any number of sections from a minimum of two to a maximum restricted only by the practical limits of the production process and the material chosen.
摘要翻译： PCT No.PCT / GB89 / 00553 Sec。 371日期1990年2月23日 102（e）1990年2月23日PCT PCT 1989年5月19日PCT公布。 出版物WO89 / 11575 伸缩梁具有横截面，该横截面包括一组构件（11-17），其横截面基本上是螺旋形或螺旋形的，使得构件具有相同（或大致相同）交叉的长度 （在轮廓和尺寸上）和沿其轴线的恒定（或大致恒定）横截面。 在阵列中，构件围绕平行于其自身轴线的梁的轴线（A）相对于彼此旋转偏移。 此外，阵列中的构件彼此接合，使得两个相邻构件之间的相对线性运动被限制为仅在其轴线的方向上是可能的。 组合阵列以产生伸缩梁。 任何光束中的最大成员数目取决于所使用的特定部分中所包含的旋转偏移量的大小。 可以选择任何数量的旋转偏移量，所以从最小二到最大限度的任何数量的区段只能由生产过程和所选材料的实际限制限制。
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公开(公告)号：US4990929A
公开(公告)日：1991-02-05
申请号：US285050
申请日：1988-12-15
申请人： Kazuhiko Nakase , Yuzo Yamamoto
发明人： Kazuhiko Nakase , Yuzo Yamamoto
IPC分类号： H01Q1/10
CPC分类号： H01Q1/103
摘要： A motor-driven automobile antenna equipped with a timer which stops a motor for extending and retracting a rod antenna via a rack rope after a lapse of time which is longer than the period of time required by the antenna to be fully extended or retracted.
摘要翻译： 一种具有计时器的电动机动车天线，其经过时间长于天线完全延伸或缩回所需时间的时间，通过齿条绳索停止用于延伸和缩回杆状天线的电动机。
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公开(公告)号：US4866458A
公开(公告)日：1989-09-12
申请号：US227470
申请日：1988-08-02
申请人： Misao Kimura
发明人： Misao Kimura
IPC分类号： H01Q1/10
CPC分类号： H01Q1/103
摘要： A clutch system for a motor driven telescopic antenna, a first rotor provided on a main shaft for moving an antenna drive cord of a telescopically adjustable antenna, a second rotor fitted over the main shaft and rotated by an electric motor, first and second clutch discs which are inserted over the main shaft and kept pressed in the shaft direction by a clamp in order to press hold both end surfaces of the second rotor in between by applying a pressurizing force to the second rotor. The clutch system further includes a clutch pressure setter for dissociating the first and second clutch discs from the second rotor when the force exceeding a specified clutch pressure that is set in relation to the engagement with the main shaft acts on the holding surfaces between the second rotor and the first and second clutch discs. The clutch pressure setter includes first uneven portions formed on both end surfaces, in the shaft direction, of a ring-form member that is coaxially inserted over the main shaft and on the center side of the second rotor and second uneven portions formed in the first and second clutch discs corresponding to the first uneven portions of the ring-form member.
摘要翻译： 一种用于电机驱动的伸缩天线的离合器系统，设置在主轴上用于移动可伸缩可调节天线的天线驱动绳的第一转子，安装在主轴上并由电动机旋转的第二转子，第一和第二离合器盘 其被插入主轴上并通过夹具沿轴向保持压紧，以便通过向第二转子施加加压力来将第二转子的两个端表面压在其间。 离合器系统还包括离合器压力设定器，用于当超过相对于与主轴接合设定的规定的离合器压力的力作用在第二转子的保持表面上时，将第一和第二离合器盘与第二转子解离 以及第一和第二离合器盘。 离合器压力调节器包括形成在同轴插入主轴和第二转子的中心侧的环状部件的轴向两端面上的第一不平坦部，以及形成在第一 以及与所述环形部件的所述第一凹凸部对应的第二离合器盘。
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公开(公告)号：US4857939A
公开(公告)日：1989-08-15
申请号：US202123
申请日：1988-06-03
申请人： Tetsuo Shimazaki
发明人： Tetsuo Shimazaki
CPC分类号： H01Q21/10 , H01Q1/1285 , H01Q11/16
摘要： A mobile communications antenna assembly for use over a selected band of frequencies in the VHF an UHF ranges, has, a radiating element with first, second and third, collinear radiating sections. The first and second sections each have an electrical length substantially equal to five-eights wavelength over the selected band, while the third section has an electrical length substantially equal to one-quarter wavelength. Phase inductor elements connect the sections for maintaining a predetermined phase relationship between electrical signals radiating from the sections. The third section further has a radiating surface area that is substantially greater than the radiating surface areas of the first and second sections. The base end of the third section is mounted to be elevated above the surface. The transmission line is connected to impedance matching means at a point where impedance of the two is substantially equal.
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