Abstract: A shock and vibration isolator camera includes a top plate is attached to a bottom plate via a universal joint that allows the top plate to pivot about two mutually perpendicular axes relative to the bottom plate. A camera attachment fitting, such a Mitchell mount fitting, may be provided on the top plate, for attaching a camera or camera accessory to the top plate. A threaded fitting may be provided on the bottom plate, for attaching the isolator to a supporting structure. A dampener/spring element is positioned between the top and bottom plates. The dampener/spring element may be separate springs and dampeners, such as gas or viscous dampeners. Alternatively, spring loaded shock absorbers, or a resilient material may be used.

Abstract: A bearing (1) comprising a block (10) of flexible material, having two end surfaces (11, 12); and a first fixture element (20) and a second fixture element (30) connected at each of the end surfaces (11, 12); wherein at least one rotational damping device (40) is arranged between the first and second fixture elements (20, 30), the bearing thus providing high dampening between structural parts of a structure, such as buildings, bridges, elevated highways, and mechanical systems (machinery).

Abstract: A vibration insulator apparatus may include a vibration insulating bush having a body having a head housing groove therethrough, a top surface contact portion extending from the body, a vibration distribution flange formed under the body and spaced from the top surface portion, and a vehicle frame contact portion formed under the vibration distribution flange and configured to contact with the vehicle frame, and a coupling bolt coupled to the vehicle frame and including a head housed in the head housing groove of the vibration insulating bush, wherein a flange of an air duct may be disposed between the top surface contact portion and the vibration distribution flange.

Abstract: An elastomeric bushing includes an inner component, first, second and third elastomeric or plastic members and an outer component. The first elastomeric or plastic member is disposed over the inner component. The second elastomeric or plastic member is disposed over the first elastomeric or plastic member. The third elastomeric or plastic member is disposed over the second elastomeric or plastic member. The outer component is disposed over the third elastomeric or plastic member.

Abstract: The present invention provides a vibration damper comprising: a cylindrical body (1); a core member (2) disposed on one side of the cylindrical body (1) on the central axis thereof to be coaxial with the cylindrical body (1); and a main rubber body (3) for connecting an inner peripheral surface of the cylindrical body (1) over the entire circumference thereof to the core member (2), wherein an outer surface of the main rubber body (3) is formed to have a truncated cone-like shape protruding toward the core member (2) in a vertical cross section including the central axis of the main rubber body, the vibration damper is adapted to absorb, primarily by shearing deformation of the main rubber body (3), vibrations inputted in the central axis direction from a member on the vibration-generation side, so that the inputted vibrations are prevented from being transmitted to a member on the vibration-transmission side, and the main rubber body (3) is constituted of two types of rubber elastic bodies (3a, 3b) having di

Abstract: A fluid powered percussion tool 1 has a housing 2 with a supply channel for pressurized fluid 3, a percussion mechanism 4, a swing joint 5 arranged to carry the percussion mechanism 4 relative to the housing 2 at a point situated between the forward end A and the rear end B of the percussion mechanism 4, at least one elastically resilient element 6 arranged between the housing 2 and the percussion mechanism 4 at a distance from the swinging joint 5 and arranged to load the percussion mechanism 4 against a neutral position in the housing 2 and to absorb the vibrational movements of the percussion mechanism 4, and a flexible connection for pressurized fluid 7 for distribution of pressurized fluid from the supply channel for pressurized fluid 3 to the percussion mechanism 4. The elastically resilient element 6 includes a conical spring 8. The flexible connection for pressurized fluid 7 includes a hose 11.

Abstract: A crankcase of an internal combustion engine includes protruding portions formed on an outer surface of the crankcase which are constituted of a pair of left and right wall members, and a vibration isolating rubber is fitted between the wall members. The crankcase configured in this manner prevents the generation of sounds from a protruding portion of the crankcase and is light-weight.

Abstract: An anti-vibration rubber member includes: a rubber elastic body made of a self-lubricating rubber containing an elastomer and a bleeding lubricant; a coating film that covers at least a portion of a sliding inner surface that is among a surface of the rubber elastic body and disposed on an inner side of the sliding surface, contains a resin having a mercapto group, is deformable to follow up deformation of the rubber elastic body, and is formed with a plurality of minute holes capable of reserving the bleeding lubricant which has oozed out of the rubber elastic body; and a lubricating film that covers at least a portion of a surface of the coating film, is formed to include the bleeding lubricant penetrating the coating film from the rubber elastic body and oozing onto the surface of the coating film, and forms at least a portion of the sliding surface.

Abstract: A drive unit in a motor vehicle is mounted with two elastic motor mounts, of which each in each case couples an engine support, connected rigidly to the drive unit, elastically to a body structure of the motor vehicle, and with a torque support which is arranged above the two motor mounts transversely with respect to the vehicle longitudinal axis and which is coupled at one end to the drive unit and is coupled at another end to the body structure and is configured such that the two ends are connected, damped elastically, to one another. There is also provided a damping support arranged at a lower level than the torque support transversely with respect to the vehicle longitudinal axis and which is coupled at one end to the drive unit and is coupled at another end to the body structure. The damping support is configured such that transverse vibrations of the drive unit are damped.

Abstract: A vibration mount having a body for coupling to an object to be supported by the vibration mount, a flexible member forming a foot on the body and together with the body, forming a chamber therein, a center member within the chamber and coupled to move in unison with the body, a valve having a first valve member coupled to move in unison with the central member and a second valve member coupled to move in unison with the flexible member, a connection for coupling air under pressure to the chamber through the valve member, and a vent for venting the chamber though the valve.

Abstract: A vibration damping insert configured to seat within a cell of a cellular structure and to span the cell cavity. The insert comprises a first portion formed of a first material and a second portion formed of a second material having lower stiffness than the first material. The first portion is arranged to constrain deformation of the second portion to be in a predetermined direction. The invention also comprises a vibration damping body comprising a cellular structure formed of a plurality of tessellating cells and a vibration damping insert as described. The vibration damping insert is mounted in at least one of the cells in the cellular structure. The invention also comprises a method of manufacturing a vibration damping body.

Abstract: The present invention relates to shock absorber insert for retro fitment into the body of an existing walking aid, such as a crutch, to dampen the impact force between the walking aid and a ground surface. Known shock absorbing walking aids can be relatively expensive to manufacture, heavy to use and do not provide for adjustment of the shock absorber. The shock absorber insert (1) of the present invention comprises a piston cylinder (11) with an end wall (11A); a piston (5) which moves axially within the piston cylinder (11) and a damper (10) located on a piston rod (9) and abut the end wall (11A) to reduce the speed of movement of the piston rod (9) within the piston cylinder (11). The shock absorber insert is either mid mounted between an upper (2) and lower (3) shaft or bottom mounted into a lower end of the lower (3) shaft.

Abstract: According to one embodiment, a vibration isolation system includes a heater element thermally coupled to a damping element formed of an elastomeric material having an elasticity that varies as a function of its temperature. The damping element physically couples a first structure to a second structure. The heater element selectively heats the damping element to regulate its temperature for controlling the elasticity of the damping element.

Abstract: A vibration bearing for a vehicle exhaust system includes an elastic damping element and a pretension device which compresses the elastic damping element radially and axially. A first coupling region is formed on the elastic damping element, and a second coupling region is formed on the pretension device.

Abstract: Embodiments of the present invention relate to a protective pad that is comprised of an impact shell and a damping component. The damping component may be formed by a plurality of connecting members that are separated from the impact shell by a plurality of extension members that extend between the damping lattice and the impact shell. The damping component may also be formed by a sheet-like form that is separated from the impact shell by a plurality of extension members that extend between the damping sheet and the impact shell. The damping component is formed from an elastomer that aids in absorbing a portion of an impact force that is distributed across the damping component by the impact shell. The geometry of the damping component may be configured to provide a difference of impact attenuation at specific locations of the protective pad.

Abstract: A bicycle seat support that resiliently supports a bicycle seat and comprises an upper engagement member adapted to support a bicycle seat, a lower engagement member adapted to engage a bicycle frame, and a compliant support assembly coupling the upper engagement member to the lower engagement member. The compliant support assembly includes a first cantilevered beam cantilevered to the lower engagement member, and a second cantilevered beam cantilevered to the first cantilevered beam. The first and second cantilevered beams define a gap, and a resilient member is positioned in the gap. Preferably, the cantilevered beams include convex surfaces, and the resilient member includes concave surfaces shaped to receive the convex surfaces. The resilient member can include a body portion and a strut (e.g., two struts). The resilient member can also include a side surface and a recess in the side surface (e.g., extending all the way through the resilient member).

Abstract: A damping stop for damping the rotation of two members connected by a hinge shaft is formed by a block of elastomeric material. The damping stop includes a fastening zone inserted forcibly into a seat situated between the first member and the hinge shaft, a contact zone that enters into contact with the second member after pivoting thereof around the hinge shaft in the direction of the first member, and a compression zone formed by a material void in the interior of the block of elastomeric material. The material void extends over the entire length of the damping stop in a direction parallel to the hinge shaft when the damping stop is inserted into the seat. The damping stop is used in a hinge of a vehicle.

Abstract: An armature shaft bearing unit, particularly for an angle grinding machine, includes at least one damping element configured to damp vibrations of an armature shaft. The armature shaft bearing unit further includes at least one movement limiting element configured to limit a movement of the armature shaft in at least one damping direction of the at least one damping element.

Abstract: A snubber for reducing shock and vibration in down hole tools includes a housing having an axis and a chamber. A piston is mounted in the chamber for axial movement therein. The piston includes a shaft extending therefrom to an exterior of the housing. An axial spring element is mounted between the piston and the housing. Both the piston and the chamber include non-cylindrical portions.

Abstract: A gas spring for forming equipment, a piston rod for the gas spring, and a shock collar for the gas spring carried by the piston rod. The shock collar may be resiliently flexible, and plastically deformable so as to at least partially collapse, and the piston rod may include features to disrupt a gas spring seal upon at least partial collapse of the shock collar.

Abstract: A damper for damping vibrations between a support and a device mounted on the same includes two elastic elements which can be attached to the support by means of a bolt and a securement means. The damper should be suitable for different material thicknesses of the support. This is achieved in that a step is constructed on an outer periphery of a first element, wherein a smaller cross-section formed by the step corresponds to the cross-section of an opening in the support which is functionally assigned thereto, and the part having the smaller cross-section is longer than a thickness of the support, and in that a bore hole is included in an end face of a second element, wherein the cross-section of the bore hole corresponds to that of the opening.

Abstract: Antivibration rubber device provided between a vibration source and a vehicle body is provided with: a first mounting member (11) which is mounted to the vibration source side; an elastic member (13) which is in close contact with a surface of the first mounting member (11) and has a step formed at the end part on the vibration source side; and a second mounting member (12) which is integrally connected to the vehicle body side, thereby suppressing occurrence of a crack in the elastic member of the antivibration rubber device and improving durability enabling long-term use.

Abstract: Disclosed is a damper that is easy to mount and capable of attenuating to a sufficient degree a vibration generated by an electronic component; also disclosed are an electronic component and an electronic apparatus that are provided with such a damper. A mounting insertion portion is provided with a hard portion maintaining the configuration of the mounting insertion portion.

Abstract: A torque rod includes a stopper. The stopper includes a first guide portion sloped to a top-bottom direction of a vehicle body on one side in the top-bottom direction of the vehicle body relative to a reference axis, and a second guide portion sloped to the top-bottom direction of the vehicle body in an opposite direction of the slope of the first guide portion on the other side in the top-bottom direction of the vehicle body relative to the reference axis.

Abstract: An elastomeric pin isolator assembly is provided, including an elastomeric material, configured to engage a first support structure or mass, and a pin member, engaged with the elastomeric material, the pin member configured to slidably at least one of a second support structure or mass and the elastomeric material, and further wherein at least a portion of the elastomeric member is disposed between the first and second support structures or masses such that the first and second support structures or masses do not directly contact.

Abstract: An anti-vibration device including first and second strength members interconnected by an elastomer body, the first strength being made of molded plastic material and including an elastic clip adapted to retain a conduit by snap-fitting.

Abstract: A rigidity-controllable device and a damping-controllable shock-absorbing apparatus comprising the same are disclosed. The rigidity-controllable device of the present invention comprises: a composite comprising a polymer base and a nano-conductive material dispersed in the polymer base; and a power supply electrically connecting with the composite; wherein when the power supply electricity to the composite, temperature of the composite is increased and thus the rigidity of the composite is adjusted.

Abstract: A compressible resilient elastomeric pad includes a body defining a central axis, the body formed from a predetermined material and having each of a peripheral side surface, a first axial end and a second axial end, each of the first and second axial ends having a flat surface thereof disposed normal to such central axis. A first raised projection is centrally formed on the flat surface of the first axial end and a second raised projection is centrally formed on the flat surface of the second axial end. A first groove is formed in the flat surface of the first axial end in abutting relationship with a peripheral side surface of the first projection and a second groove is formed in the flat surface of the second axial end in abutting relationship with a peripheral side surface of the second projection.

Abstract: An engine mount assembly is provided for mounting an engine to a vehicle frame. The engine mount assembly includes an elastomeric material snubber element having a generally elongated configuration with axial end faces and a coaxial bolt passage defined therethrough. A tubular sleeve has an inner shape sized for sliding receipt of the snubber element therein. The tubular sleeve has a longitudinal cross-sectional profile such that a bottom longitudinal cross-sectional portion of the tubular sleeve extends axially beyond the end faces of the snubber element and defines an enlarged attachment footprint for the tubular sleeve to a vehicle frame flange.

Abstract: A bearing, having: a support for fastening the bearing to a first body; a supporting bearing for fastening the bearing to a second body; and a multilayered spring which is integrated into the support and/or the supporting bearing and has an elastomer track which is arranged between two cover plates, wherein at least one of the cover plates has at least one projection which extends into the elastomer track from the one cover plate in the direction of the other cover plate.

Abstract: Impact attenuating/spring systems may include first and second body portions and at least one spring member at least partially included between the body portions. The spring member(s) may substantially enclose and/or be pivotally engaged with the body portion(s). The components of the impact attenuating and spring element may be arranged such that when a force is applied to the body portion(s), the spring member(s) will exert a counter force to urge the impact attenuating and spring element back toward its original orientation. The spring members may include one or more polymeric element that stretches under a tensile force. The impact attenuating and spring elements may be included in a piece of footwear or other device in a manner such that a user or a retailer (or others) can select an appropriate spring member (or portion thereof), e.g., depending on characteristics of the user or the intended use.

Abstract: Impact attenuating/spring systems may include first and second body portions and at least one spring member at least partially included between the body portions. The spring member(s) may substantially enclose and/or be pivotally engaged with the body portion(s). The components of the impact attenuating and spring element may be arranged such that when a force is applied to the body portion(s), the spring member(s) will exert a counter force to urge the impact attenuating and spring element back toward its original orientation. The spring members may include one or more polymeric element that stretches under a tensile force. The impact attenuating and spring elements may be included in a piece of footwear or other device in a manner such that a user or a retailer (or others) can select an appropriate spring member (or portion thereof), e.g., depending on characteristics of the user or the intended use.

Abstract: A golf club (2) comprising a shaft (20), a head and a damping device (1, 100). The damping device (1, 100) includes an anchor element (3, 103) and a damping element (4, 104) interconnected by a rigid rod (5, 105). The anchor element (3, 103) is anchored within the lower section of the shaft (20) that has a substantially constant diameter such that the damping element (4, 104) is in contact with an internal surface of the shaft (20) to dampen vibrations therein.

Abstract: A bushing of the type used to limit wobble in drill pipe, the improvement comprising a bushing defined by two halves, each half having two ends adapted to buttingly engage corresponding ends of the other, and each further defining a receiver section along one of its ends; a flexible hinge piece matingly joined to the receiver sections with the opposite ends of the halves remaining free to move relative to one another, whereby the halves are rotatably affixed together at one end, but the opposite ends remain free to open. The bushing may be comprised of a first polymeric material, and the hinge piece comprised of a second, more flexible, polymeric material. Each half of the bushing may have mounted thereto a handle projecting upwardly.

Abstract: A buckling shock mounting and method related thereto are discussed herein. In one embodiment, the buckling shock mounting may take the form of a plurality of panels oriented uprightly within a plane to form at least one geometric shape. The plurality of panels are made of a uniform material and each of the panels is configured to buckle when a threshold amount of force is applied perpendicularly to the plane.

Abstract: A vibrating toothbrush is provided with vibration-isolating zones that substantially isolate vibrations in the head and reduce vibrations transmitted to the handle without sacrificing structural integrity around the vibration-isolation zones. Such zones may generally comprise neck material that is reduced in cross-section, thinned, replaced by dampening material, or removed altogether to create transmission-inhibiting voids. The vibration-isolating zones may be further supported by the housing of the vibratory element to maintain the structural integrity around the zones and to thereby alleviating weakness conditions that might subject the toothbrush to fatigue and breakage conditions.

Abstract: A vibration damping system (10) includes a laminated body (16) formed by alternately laminating rigid hard plates (12) and viscoelastic soft plates (14). At both ends in the laminating direction, the laminated body (16) is connected to a vibration generation section and a vibration receiving section, respectively. The soft plate (14) arranged in a region subjected to a higher isostatic stress is made thicker than the soft plates (14) arranged in other regions. Even when the vibration damping system (10) is applied with vibration having a large amplitude and prying deformation is thereby caused, the soft members (14) are prevented from isostatic fracture to provide a significantly improved durability of the vibration damping system (10).

Abstract: A cushion clip may include a cushioning portion made of a soft material and capable of being elastically deformed when a compression force is applied thereto, an attachment portion made of a hard material, and a connecting portion integrally formed with the attachment portion. The connecting portion is embedded in the cushioning portion such that the cushioning portion can be integrated with the attachment portion. A portion of the cushioning portion surrounding an outer circumferential periphery of an end surface of the connecting portion has a lateral thickness that is varied in a direction in which the compression force is applied to the cushioning portion.

Abstract: A dampener configured to augment the mounting of a lamp in a socket by resisting displacement of the lamp relative to the socket. The dampener is made from a material able to absorb vibrations and to reduce or prevent vibrations in the lamp. The dampener is made in one piece or more pieces, wherein each piece is interposable in whole or in part between the socket and the lamp base to insulate the lamp in whole or part against the vibration translated through the socket or surrounding air.

Abstract: An elastomeric isolator has an elastomeric body which incorporates an inner structural member and an outer structural member. The elastomeric body includes a shear hub extending between radial flanges defined by the inner and outer structural members that undergo shearing stresses during deflection of the elastomeric isolator. The inner and outer structural members are designed to provide a travel stop for the elastomeric isolator in order to avoid compression of the shear hub during high loads. The elastomeric bushing can also include an optional integral elastomeric heat shield which protects the shear hub.

Abstract: A vibration isolating apparatus is provided in which a vehicle collision is detected as soon as a predetermined load or greater is applied to a torque rod, a rod portion of the vibration isolating apparatus for supporting an engine is broken, and the engine can be fallen down (moved) in a predetermined direction, whereby a passenger can be assured of safety at the time of the vehicle collision. A vibration isolating apparatus includes a pair of rings, a rod portion connecting the pair of rings, the pair of rings and the rod portion being integrally formed from a resin or metal material, and inner cylinders which are inserted into the pair of rings, respectively, through rubber elastic bodies, wherein the rod portion is formed in an asymmetrical shape with respect to the pair of rings to provide rigidity difference, and the rod portion at the side having low rigidity is broken when a predetermined load or greater is applied thereto.

Abstract: The present invention discloses a concrete structure used for bank protection and scour prevention of river bank and coast. Its construct is a hollow circular truncated cone and concrete flat plates are plugged on the hollow circular truncated cone. By tearing, dispersing and stirring up water flow, the energy of local water flow is dissipated, and the scouring strength of the water flow is weakened, achieving the aim of scour prevention and bank protection. It has good mechanical property, not easy to be destroyed, has good stability in water and big overhead rate, and can save materials. Compared to previous various structures for scour prevention, the present invention has better effects of energy dissipation and scour prevention. It not only can be used in bank protection and scour prevention, but also can be used for supplementary energy dissipation when plugging and closure.

Abstract: An engine mount may include an inner core having a bolt fastening portion, to which an engine connection bolt is fastened, and a stopper molding portion integrally formed on a lower end of the bolt fastening portion, and a forward-backward stopper integrally formed on a circumferential surface of the stopper molding portion, an upper insulator formed over a lower surface of the stopper molding portion, a saddle plate integrally formed on a lower surface of the upper insulator during a vulcanization molding, a lower insulator integrally formed on a lower surface of the saddle plate during the vulcanization molding, a fixing plate integrally formed on a lower surface of the lower insulator, a housing surrounding the upper and lower insulators and the forward-backward stopper, and a mounting bracket fastening a contact area between a lower end of the housing and an upper end of the fixing plate.

Abstract: This present invention addresses the need for more shock-absorbing crash pad. Most traditional crash pads use box-type stiffer, thinner, closed-cell foam sheet over, sometimes under, too, a squishier, thicker, open-cell solid foam base. However, traditionally, most inner form are solid box type and still too hard to soften the landings in case of a fall of climber because most impact goes to downward. This present invention uses forms which were shredded and chunked to ¼? to ½? varied pieces packed in enclosed baffles instead of box-type solid form, allowing air among forms and more shock-absorbing baffle effect to minimize the impact to falling climbers. When hit by a falling climber, the impacts are dispersed to both side-way and downward minimizing the impact to the falling climber.

Abstract: An adjustable vibration reduction device is provided to dampen and reduce vibration in order to maintain performance of equipment attached to a system. The vibration reduction device includes at least one resilient vibration dampener coupling an upper assembly to a lower assembly. The upper assembly is attached to an equipment mount frame via a pair of stop members extending through a pair of stop apertures in the lower assembly to control movement of the lower assembly relative to the upper assembly. The lower assembly is attached to a structure frame via a pair of fastening devices. The vibration reduction device may be adjusted by selectively including at least one resilient vibration dampener, such as an o-ring, having predetermined characteristics to maximize vibration reduction or isolation. A plurality of vibration reduction devices are provided in a system that causes or transfers vibration, such as a vehicle, having electronic equipment attached thereto.

Abstract: There is disclosed a cushion of a folding portable electronic device which can prevent the increase of manufacturing cost, prevent the permeation of water into cases and prevent the cases from being damaged at a folding operation. A cushion 107 includes a projecting part 107a which is disposed in one case 110 and projects from one surface to come in contact with the other case in a closed state; and a body part 107b having a side surface sandwiched between an outer surface of a frame constituent member 101 which constitutes a frame of the one surface and an inner surface of a back surface constituent member 102 to cover a back surface which is the surface on a side opposite to the one surface of the one case, whereby the body part closely comes in contact therewith.

Abstract: Impact attenuating/spring systems may include first and second body portions and at least one spring member at least partially included between the body portions. The spring member(s) may substantially enclose and/or be pivotally engaged with the body portion(s). The components of the impact attenuating and spring element may be arranged such that when a force is applied to the body portion(s), the spring member(s) will exert a counter force to urge the impact attenuating and spring element back toward its original orientation. The spring members may include one or more polymeric element that stretches under a tensile force. The impact attenuating and spring elements may be included in a piece of footwear or other device in a manner such that a user or a retailer (or others) can select an appropriate spring member (or portion thereof), e.g., depending on characteristics of the user or the intended use.

Abstract: An anti-vibration rubber device is capable of advantageously preventing cracks from occurring in a constricted portion because of a long time use in a high-temperature environment. A rubber ring having higher resistance to gas permeability than a main rubber portion is externally inserted in a tension-deformed state to a stress concentration portion of a constricted portion in the main rubber portion that connects a first attachment member and a second attachment member. Due to a restoring force from the tension-deformed state, the rubber ring is tightly attached without being bonded to an outer peripheral surface of the stress concentration portion.

Abstract: It is intended to provide a vibration control apparatus that can be installed in a small pace and can be produced at low cost, as well as a wind turbine generator equipped with the vibration control apparatus and a vibration control method. The vibration control apparatus 7 includes a first vibration system 10 of inverted-pendulum type, second vibration systems 20 of inverted-pendulum type which are provided on both sides of the first vibration system 10, a restraining unit 30 which restrains a first weight 11 of the first vibration system 10 and a second weight 21 of the second vibration system 20 and a damper which damps vibration of the first weight 11 and the second weight 21. The vibration control apparatus 7 is installed on an upper floor 8a of a plurality of floors 8.

Abstract: In a bump stopper (115) attached to a main frame (10) of a chassis frame (9) of a vehicle (1), a stopper body (116) is a panel which is, as viewed in a cross section along a horizontal direction, formed in a bag shape having an opening on an inner side in a vehicle width direction and formed so as to have openings at upper and lower ends. The stopper body (116) is attached to an outer surface of the main frame (10) at front and rear attachment parts (116c, 116d) which are end parts of the panel positioned at sides of the opening on the inner side in the vehicle width direction. A contact member (118) contacting an arm (92) is attached to the stopper body (116) so as to be positioned in the vicinity of a lower opening (116) of the stopper body (116).