Abstract: An unmanned aerial vehicle includes a main unit having a thrust generating part for flying in air, a suction device that has a suction part and is fixed to the main unit, and a control device that controls operations of the thrust generating part and the suction device such that the suction part is configured to be suctioned to a wall surface by the operation of the suction device to allow the main unit to be attached to the wall surface, wherein a suction state detecting part that detects a suction state of the suction part, is provided, and the control device controls the operation of the thrust generating part based on a detection by the suction state detecting part in suction phase and/or departure phase of the main unit with respect to the wall surface.

Abstract: A dust seal for a sliding type bush is interposed between a stationary section and a movable section. The dust seal has a fitting portion fitted to the stationary section, a seal lip portion in sliding contact with the outer circumferential surface of the movable section and a flexible portion interconnecting the fitting portion and the seal lip portion. The dust seal is further provided with an annular projection held in contact with a flange and the outer circumferential surface of the movable section. The seal lip portion is held axially stationarily relative to the movable section.

Abstract: A bush assembly includes an inner cylindrical member for supporting an elongated member, a rigid sleeve slideably fixed to the outer surface of the inner cylindrical member via a slipping member, and an outer cylindrical member fixed to the outer surface of the rigid sleeve via an elastic member. The rigid sleeve has a greater diameter portion at one end thereof so that an annular space is formed between the greater diameter portion and one end of the inner cylindrical member. The bush assembly further includes a sealing member which is disposed in the annular space for preventing muddy water or the like from getting into the interfaces between the slipping member and the inner cylindrical member and between the slipping member and the rigid sleeve. The sealing member includes an outer portion fixed to the rigid sleeve, an inner portion being brought into contact with the inner cylindrical member, and an intermediate portion arranged therebetween.

Abstract: A bush assembly includes an inner cylindrical member for supporting an elongated member, a rigid sleeve slidably fixed to the outer surface of the inner cylindrical member via a slipping member, and an outer cylindrical member fixed to the outer surface of the rigid sleeve via an elastic member. The rigid sleeve has a greater diameter portion at one end thereof so that an annular space is formed between the greater diameter portion and one end of the inner cylindrical member. The bush assembly further includes a sealing member which is disposed in the annular space for preventing muddy water or the like from getting into the interfaces between the slipping member and the inner cylindrical member and between the slipping member and the rigid sleeve. The elastic member has a radially extending projection for interrupting muddy water or the like getting into the interface between the outer cylindrical member and a member which is to be connected another member via the bush assembly.

Abstract: A bushing assembly for use in a suspension of an automotive vehicle. The bushing assembly is comprised of inner and outer cylinder members which are coaxial and spaced from each other. An elastic member and a rigid sleeve member are disposed between the inner and outer cylinder members. A sliding member is disposed between the inner cylinder member and the rigid sleeve member in order to reduce torsion spring effect of the elastic member. The sliding member is prevented from its axial displacement upon contacting with a radially outwardly extending retainer section formed in the inner cylinder member. Additionally, a generally cap-shaped seal rubber is provided to accomplish seal between the end section of the rigid sleeve member and the end section of the inner cylinder member.

Abstract: A double link type front suspension system for an automotive vehicle of the front engine front drive type or the four wheel drive type is comprised of upper and lower control arms for swingable connecting a knuckle for rotatably supporting a front wheel to a vehicle body. A curved extension bracket is provided to rotatably connect the knuckle upper section with the upper control arm. The extension member is movably connected at its upper end section with the outboard end section of the upper control arm and rotatably connected at its lower end section with the knuckle upper section. The relative rotation between the extension member and the knuckle upper section is made around a straight line (steering) axis) passing through a ball joint for connecting the knuckle lower section and the lower control arm, thereby making it possible to set the steering axis regardless of the upper control arm.

Abstract: A strut suspension for an automotive vehicle has its upper end connected to a suspension support which allows the upper end of the suspension strut to shift in a direction oblique to the longitudinal axis of the strut in response to vertical movement of a vehicle wheel. Shifting of the upper end of the strut is controlled by means of a link member rotatably connected to the upper end of the strut. The link member is rotatably connected to the suspension support. This structure ensures negative camber during roll-steer, anti-dive characteristics, and weak under-steer, and suppresses harshness by providing a suspension geometry which optimizes suspension characteristics depending upon the vehicle driving conditions.

Abstract: A double link type front suspension system for an automotive vehicle of the front engine front drive type or the four wheel drive type. The suspension system is comprised of upper and lower control arms adapted to connect a steering knuckle to a vehicle body. A shock absorber is disposed generally vertical so that its upper end section is connected to the vehicle body while its lower end section is relatively rotatably connected to the knuckle upper section is made around a straight line (steering axis) passing through a ball joint for connecting the knuckle lower section and the lower control arm, thereby making possible to set the steering axis regardless of the upper control arm.

Abstract: A fluid-filled engine mount device comprises an annular elastic block having inner and outer peripheral sections one of which is connected to a power unit side and the other connected to a vehicle body side; an annular elastic member connected to the elastic block; a partition plate member connected to and elastically supported by the annular elastic member, the partition plate member being formed with an orifice and defining between it and the elastic block a fluid chamber capable of being filled with a fluid; and a diaphragm member disposed in connection with the partition plate member and defining between it and the partition plate member an auxiliary chamber capable of being filled with the fluid, the auxiliary chamber being in communication with the fluid chamber through the orifice thereby effectively damping high frequency fine vibration applied from a power unit.

Abstract: An engine mount device comprising first and second base plate members which are spaced from each other; an elastic block securely interposed between the first and second base plate members and formed with a cavity; a partition wall member connected to the first base plate member and including a projecting section which projects into and is located within the elastic block cavity, the partition wall member defining within the elastic block cavity a fluid chamber to be filled with a fluid and being formed with an orifice; and a diaphragm member connected to the partition wall member and including a projecting section which projects into and is located within the elastic block cavity, said diaphragm member defining between it and the partition wall member an auxiliary chamber which communicates with the fluid chamber through the partition wall member orifice, a major part of the auxiliary chamber being located with the elastic block cavity, thereby saving the amount of the fluid used in the device.

Abstract: An engine mount device comprises first and second base plate members; an elastic block securely interposed between the first and second base plate members and formed with a cavity; a partition plate member connected to one of the first and second base plate members and formed with an orifice; a diaphragm member connected to the one of the first and second base plate members and defining an auxiliary chamber between it and the partition plate member, the auxiliary chamber being in communication with the fluid chamber through the partition plate member orifice, at least a part of the fluid and auxiliary chambers being filled with a fluid; and a rigid ring disposed around the intermediate section of the elastic block thereby restricting the expansion of the elastic block; the elastic block and the rigid ring serving as a dynamic damper for damping vibration having predetermined frequencies, thereby rendering unnecessary installing the dynamic damper independent from the engine mount device.

Abstract: A vibration damper of viscous damping type for damping low-frequency (10 to 20 Hz) vibrations has at least one subpassageway oblique to the axis of a main passageway. Since vortexes are generated around the main passageway as damping fluid passes through the subpassageway, the fluid can effectively reciprocate through the main passageway in response to pressure gradients induced by the vortexes, thus increasing the damping force generated as the fluid flows through the main passageway. Further, since the frequency at which the maximum flow rate, that is, the maximum damping factor can be obtained is determined on the basis of the dimensions of a passageway, the dimensions of the main passageway and the subpassageway are selected so as to match the maximum-flow-rate frequency of the subpassageway with that of the main passageway.

Abstract: A fluid-filled engine mount device comprises first and second base plate members which are connected to a power unit side and a vehicle body side, respectively; a block made of elastic material and interposed between the first and second base plate members, the elastic block being formed with a cavity; a partition plate member having an orifice, located in the vicinity of and spaced from the first base plate member to define a fluid chamber to be filled with a fluid and an auxiliary chamber which communicates with the fluid chamber through the orifice; and an elastic support member for connecting the partition plate member with the first base plate member, includes a secured section secured to the first base plate member, and an annular section located inside of the inner wall surface of the elastic block cavity and inside of the first base plate member in the radial direction, and located between the secured section and the partition plate member peripheral section, thereby effectively preventing high freque

Abstract: An engine mounting arrangement includes elastomeric mounting blocks interposed between laterally extending arms connected to the engine and brackets fixed to a cross member of the chassis near the outboard ends thereof. The blocks are adapted to undergo shear upon the engine rolling about an essentially longitudinal axis. The arrangement further includes a mounting unit including an elastomeric chamber defining member which readily undergoes shear without changing the volume the chamber which it defines when the engine rolls but which undergoes a volume change upon the engine bouncing or vibrating in the vertical direction. The volume change pumps working fluid from the chamber to a second variable volume chamber and vice versa through a flow restriction so that vertical movement of the engine is strongly damped but rolling readily permitted. The arrangement further minimizes the transmission of vibration from the engine to the chassis and the tendency of the cross member per se to be vibrated.

Abstract: A vibration absorber for an automotive vehicle which can prevent the shuddering phenomenon even while the vehicle is gradually accelerated or decelerated. The rubber member thereof is provided with multistep elasticity characteristics such that a first shearing portion of the rubber member is first deformed in shear, a second shearing portion thereof is next deformed in shear, and the other portion thereof is lastly deformed under compression. To achieve the above-mentioned elasticity characteristics, some appropriately sized slots, cavities, or gaps are provided within the rubber member at appropriate positions within the rubber member.

Abstract: A damper comprises a plurality of armatures between which an elastic block is interposed. A partition plate divides the interior bore of the elastic block into two chambers. The chambers are filled with a working fluid and communicate with each other through an orifice providing a restricted flow communication and also through holes providing an unrestricted flow communication. A valve is provided to close the holes to prevent the unrestricted flow communication.

Abstract: A double link type front suspension system for an automotive vehicle of the front engine front drive type or the four wheel drive type. The suspension system is comprised of upper and lower control arms adapted to connect a steering knuckle to a vehicle body. A shock absorber is disposed .[.generally vertical.]. so that its upper end .[.section.]. is connected to the vehicle body .[.while its.]. .Iadd.and the .Iaddend.lower end .[.section.]. is .[.relatively rotatably.]. .Iadd.pivotally .Iaddend.connected .[.to.]. .Iadd.by way of a joint formed on the upper portion of .Iaddend.the knuckle .Iadd.to either the knuckle itself or the lower end of an intermediate arm which is connected between the .Iaddend.upper .[.section is made around.]. .Iadd.arm and the knuckle. The lower control arm is connected to the knuckle by way of a ball joint. A steering axis is defined by .Iaddend.a .[.straight.]. line (steering axis).]. passing through .[.a.]. .Iadd.the .Iaddend.ball joint .[.for connecting.]. .Iadd.