Abstract: A method for bundling a collapsible rotor assembly is disclosed. The method may include hooking a first arm with a first bracing member to form a first arm-brace bundle, and hooking the first arm-brace bundle with a blade to firm a first blade-arm bundle. The method may further include hooking a second arm with a second bracing member to form a second arm-brace bundle, and hooking the second arm-brace bundle with the blade to form a second blade-arm bundle. The second arm-brace bundle may be hooked with the blade such that the first blade-arm bundle may be disposed between the second arm-brace bundle and the blade.

Abstract: In general, devices, systems, and methods for multi-source imaging are provided. In one embodiment, a surgical system is provided that includes a first imaging device configured to gather first images for visualization of a surgical target, a second imaging device configured to gather second images that enhance the visualization of the surgical target, and a controller configured to cause a display device to show a single view of the surgical target that is a cooperation of the first and second images. The first imaging device has a different point of view of the surgical site than the second imaging device.

Abstract: A mounting plate for a medical device support system includes opposed major surfaces in a thickness direction. A group of plate mounting orifices is arranged in a hexagon pattern and extends through the opposed major surfaces and defines a perimeter of an area at the major surfaces. A primary orifice extends through the opposed major surfaces, and a group of primary spindle mounting orifices surround the primary orifice and extend through the opposed major surfaces, the primary orifice and the primary spindle mounting orifices located within the defined area. An auxiliary orifice extends through the opposed major surfaces and a group of auxiliary spindle mounting orifices surrounds the auxiliary orifice and extend through the opposed major surfaces, the group of auxiliary spindle mounting orifices defining a perimeter of an auxiliary spindle mounting area at the major surfaces, one of the plate mounting orifices located within the auxiliary spindle mounting area.

Abstract: A support system for supporting a robot arm system in an operating configuration and a stowed configuration relative to a workspace comprises a base assembly and a platform assembly. The base assembly is adapted to be secured to a structural surface, the base assembly defining a pivot opening. The platform assembly adapted to support the robot arm system, the platform assembly comprising a pivot member. The pivot opening is sized and dimensioned to receive the pivot member such that the platform assembly is movable between the operating configuration and the stowed configuration relative to the workspace.

Abstract: A supporting device is provided. The supporting device is set on a working surface for bearing a display. The supporting device comprises a base and an upright, wherein the base includes a stationary housing, a rotating element, a first gear, a second gear, a driving module, and a controlling module. The stationary housing is disposed on the working surface; the rotating element is rotatably disposed on the stationary housing and co-defines an accommodating space with the stationary housing. The first gear is disposed in the accommodating space; the second gear is also disposed in the accommodating space and is engaged to the first gear. The driving module is connected to the second gear for driving the second gear; the controlling module is electrically connected to the driving module. The upright moves together with the rotating element, the second gear, and the driving module in a circumferential direction with respect to the first gear while the driving module is controlled by the controlling module.

Abstract: Systems and methods for controlling an elongate device include a console. The console includes a first recess and a removable first input control for controlling motion of the medical device. The console also may include one or more first sensors located about the first recess that detect motion of the first input control and detect operator contact with the first input control. The console also may include an integrated display screen arranged to display status information for the medical device. In some embodiments, the first input control controls an insertion depth or steering of the medical device, and may be in the form of a scroll wheel forming a part of a removable control assembly.

Abstract: The display device may include a display unit and a support unit. The display unit is used for displaying patient-end parameter information. The support unit comprises an adapter cover and a rotating unit connected onto the adapter cover. The display unit is fastened and connected onto the adapter cover in a way that allows rotation relative to the rotating unit. The monitor comprises: a master control unit and the display unit, where the master control unit is connected to a patient end via at least one cable, and the display unit is detachably connected to the master control unit. With the implementation of the monitor, the display device thereof, and the monitoring system, the display unit rotates and switches while the position of the connecting cable of the master control unit remains unchanged; corresponding marker display areas and alarm light display areas are lit up after rotating and switching in order to taking into consideration habits of a user.

Abstract: A display apparatus includes a display assembly, and a mounting device on which the display assembly is supported. The mounting device may include a stand having a supporting boss, a rail disposed on a rear surface of the display assembly, and configured to move the display assembly in a straight line direction with respect to the supporting boss, and a rotation guide disposed at an end of the rail such that the display assembly rotates with respect to the supporting boss, wherein the display assembly is rotatable when the supporting boss is positioned on the rotation guide.

Abstract: A swivelable corner stand for supporting a TV or other devices in a corner of a room includes a base having a left side and a right side each comprising a front facet extending perpendicular to a front side and a back facet extending 45° from the front side and 45° from a back side. A support post is coupled to the base and has a perpendicular portion extending up from the base and a parallel portion extending from the perpendicular portion parallel to the base. A swivel is coupled to the parallel portion and a platform is coupled to the swivel. The platform has a left face and a right face each comprising a front portion extending perpendicular to a front face and a back portion extending 45° from the front face and 45° from a back face.

Abstract: A variable curved surface bracket structure is provided, including a base and a bracket, and the bracket is in contact with the back of the display screen; the bracket includes a fixed sheet and moving sheets respectively hinged on two sides of the fixed sheet. The variable curved surface bracket structure further includes a moving mechanism, disposed on the base and drivingly connected to the moving sheets to make the moving sheets rotate forward or backward relative to the fixed sheet. The moving mechanism includes a pushrod structure arranged on the base and includes a retractable pushrod and a driving device drivingly connected to the pushrod; at least a linkage strut assembly including at least a connecting rod and at least a strut. The disclosure allows the curvature of the display screen in contact with the bracket to be adjustable, curved or planar, to meet different viewing needs.

Abstract: Examples of the present disclosure relate to methods and systems associated with an auxiliary support for a display device. More particularly, embodiments are related to a hinged auxiliary support that is configured to be positioned between the display device and a display stand.

Abstract: The camera tripod for a smart phone is an accessory for a personal data device. The camera tripod for a smart phone is an adjustable rubber grip that is designed attach a personal data device to a tripod without damaging or scratching the personal data device. The camera tripod for a smart phone further comprises a photoelectric cell bank and a cable that can be attached to the tripod to permit the personal data device to be charged while the personal data device is in use. The camera tripod for a smart phone comprises a plurality of grips, a base, and a threaded connector.

Abstract: A piston for an engine may include a piston body. The piston body may include a piston crown disposed symmetrically about a central longitudinal axis of the piston. A combustion bowl may be recessed into the piston body and may be offset axially inwardly with respect to the piston crown. A central bowl apex may protrude axially from the combustion bowl and may be offset axially inwardly with respect to the piston crown. A first bowl apex may protrude axially from the combustion bowl and may be disposed radially inwardly with respect to the piston crown. A second bowl apex may protrude axially from the combustion bowl and may be disposed radially inwardly with respect to the first bowl apex and may be radially between the first bowl apex and the central bowl apex. The second bowl apex may be offset axially inwardly with respect to the central bowl apex.

Abstract: A luminaire mounting system can accommodate mounting a luminaire to different structures. The luminaire can comprise an adapter, which may be formed into or otherwise associated with a frame of the luminaire, for example. The adapter can provide a mechanical interface to different brackets that are configured for mounting to different structures. The adapter can connect to a first type of bracket that is configured for mounting to a vertically extending pole, to a second type of bracket that is configured for mounting to a horizontally extending pole, and to a third type of bracket that is configured for mounting to a wall or other flat surface.

Abstract: A flat panel TV bracket includes a bracket body and a display hanging plate assembly. The bracket body includes a wall mounting plate, a first rocker arm and a second rocker arm. The display hanging plate assembly includes a hanging plate and a connector. The connector rotatably includes a support plate and a rotating plate. The support plate pivotally connects with a connecting block. The rotating plate fixedly connects with the hanging plate, the lower end of the rotating plate pivotally connects with the lower end of the support plate, and the upper end of the rotating plate slidably connects with the upper end of the support plate. The second rocker arm includes a rotating block; upper and lower arms; and upper and lower arm housings; and an air spring. The air spring rotatably connects with the lower arm on the rotating block and pivotally connects with the connecting block.

Abstract: A display mount for an electronic display. The mount includes a support bracket adapted to be secured to a wall or similar structure, and a display bracket adapted to be secured to an electronic display. The support bracket includes a plurality of pairs of angled slots, each pair of angled slots having a different angle than the other pairs. The slots receive fasteners which secure the support bracket to the wall, as well as provide a means for adjusting the tilt of the bracket so as to ensure the bracket is level. The display bracket is attachable to a display, and a structure adapted to cooperate with a corresponding structure on the support bracket to hang the display from the support bracket.

Abstract: A support for a display which allows for the safe supply of electrical power when the display is reoriented includes a mounting board for mounting a display and a rack. The rack includes a power port and a power rail electrically connected to the power port. A slip assembly is slidable mounted on the rack. The mounting board is secured on the slip assembly. The slip assembly includes a conduction piece which is electrically connected to a display. The conduction piece is in electrical contact with different portions of the power rail when the slip assembly slides on the rack.

Abstract: To provide a rotary unit and a rotation support used for television, etc., with a simple structure, which can generate an adequate friction torque and has a strength enough to prevent an escape and fracture during its use, even if it is made of aluminum die-cast material or synthetic resin article, a lower interior cylindrical body and an upper interior cylindrical body are provided on an upper disc portion and a lower disc portion of a fixed cylindrical body and/or a rotary cylindrical body rotatably connected by a hinge shaft, and a reinforcing member is attached to the lower and the upper interior cylindrical bodies. The reinforcing member comprises an insertion hole in which the hinge shaft is inserted, wherein locking portions provided on a plurality of locking pieces (which are provided by folding the outer circumference portions) are locked by the lower and the upper interior cylindrical bodies.

Abstract: A stationary base with at least two door shrouds extending from a tower portion. The tower portion has at least one groove communicating with a groove guide. An actuating housing is attached to the groove guide and connected to at least one force member positioned between the base and the actuating housing. At least one containment door is positioned in a door groove adjacent each door shroud. Each containment door communicates with the actuating housing with at least one guide pin positioned in a guide slot of each containment door, the guide slot being angled at a predetermined angle to translate vertical movement of the actuating housing to horizontal movement of each containment door.

Abstract: A plural axis sun tracking system, including a base, a spatial structure assembly, and a rotating system mounted on the base for rotating the spatial structure assembly, where the spatial structure assembly includes a frame having a lower portion at a first peripheral end of the spatial structure assembly and an upper portion at a second peripheral end of the spatial structure assembly, the lower portion being more proximal to the rotating system than the upper portion, and an anchoring location for anchoring the spatial structure assembly to the rotating system, the anchoring location located at the lower portion, where the mass of the frame increasingly recedes as the distance from the anchoring location towards the upper portion increases.

Abstract: Kiosks for supporting an electronic device, where the kiosks include a stand, a swivel mechanism roratably coupled to the stand, and a frame mounted to the swivel member and configured to support the electronic device. In some examples, the swivel mechanism includes a fixed member coupled to the stand and a swivel member rotatably supported by the fixed member. The swivel member is configured to rotate relative to the fixed member between a first position, which orients the frame in a first orientation, and a second position, which orients the frame in a second orientation. In some examples, swivel mechanism includes a position selection mechanism.

Abstract: A holder assembly for holding a displaying device is disclosed. The holder assembly includes a body, a first arm, a second arm and a base. The body includes an outer surface and an inner surface. An accommodating space is formed by the inner surface. A first opening is formed on the body and connected to the accommodating space. A first connecting portion and a first pivoting portion are disposed on two ends of the first arm. A second connecting portion and a second pivoting portion are disposed on two ends of the second arm. The first and second connecting portions are connected to the displaying device. The first and second pivoting portions are pivotally disposed on the outer surface. The base includes a sliding portion and a plurality of supporters. The sliding portion is slidably connected to the inner surface. The supporters are pivotally disposed on the sliding portion.

Abstract: Portable electronic device stands for use with tablet computers, cellular phones, or other portable electronic devices are disclosed. One stand embodiment may include a base assembly which may include a plurality of retractable legs, a vertical axis assembly coupled to the base assembly and configured to store the base within, a horizontal axis assembly coupled to the vertical axis assembly, and an electronic device coupling assembly for removably attaching the electronic device to the stand.

Abstract: A blade cart for a wind turbine blade for use during the manufacturing of such a blade is described. The cart presents an adjustable and adaptable support for the tip end of a blade after the blade is removed from the mould. The cart is rotatable, and comprises selectively actuatable and/or removable support surfaces to provided easy access to the surfaces of the moulded blade for the performance of post-moulding operations, e.g. blade surface grinding, coating, etc.

Abstract: To provide a rotary unit and a rotation support used for television, etc., with a simple structure, which can generate an adequate friction torque and has a strength enough to prevent an escape and fracture during its use, even if it is made of aluminum die-cast material or synthetic resin article, a lower interior cylindrical body and an upper interior cylindrical body are provided on an upper disc portion and a lower disc portion of a fixed cylindrical body and/or a rotary cylindrical body rotatably connected by a hinge shaft, and a reinforcing member is attached to the lower and the upper interior cylindrical bodies. The reinforcing member comprises an insertion hole in which the hinge shaft is inserted, wherein locking portions provided on a plurality of locking pieces (which are provided by folding the outer circumference portions) are locked by the lower and the upper interior cylindrical bodies.

Abstract: An adjustable and portable mounting system for a tablet computing device and solar based charging system is described. An example mounting system for a tablet computing device includes a tablet enclosure with a plurality of gripping portions adjustable to hold tablets with different sizes and shapes, and each gripping portion is configured to grip a corner of the tablet computing device. The mounting system further includes an adjustable solar panel support, which is pivotally attached to the tablet enclosure and where a solar panel placed within the support can be configured to provide trickle charging to the tablet and to orient 360 degrees about three axes of rotation. The mounting system also includes a table stand, which is mounted to the tablet enclosure and provides support of the tablet computing device on a flat surface with a wide range of viewing angles. The mounting system also includes a connector configured to couple to a tripod stand mount, or a similar device.

Abstract: A support for a photovoltaic element comprising at least a primary optical component and a photovoltaic package. The support comprises at least one clip for holding the primary optical component, at least one holder configured to locate the photovoltaic package, and at least one cut-out portion to allow overlap with the primary optical component of an adjacent photovoltaic element when the elements are rotated to align with incident sunlight.

Abstract: A multidirectional support structure for tablet display apparatus includes a support member having a first end section and a second end section opposite to the first end section. The first end section is pivotally connected with an angle adjustment seat. The angle adjustment seat is further pivotally connected with a rotatable connection assembly. The connection assembly is formed with a receiving space for receiving the tablet display apparatus. The second end section of the support member is pivotally connected with one side of a base seat. The other side of the base seat is pivotally connected with a board body. The board body can be connected with multiple press keys as necessary to form a keyboard. Accordingly, the tablet display apparatus can be co-used with the keyboard and rotated and tilted by different angles and supported in different inclined positions.

Abstract: Disclosed are exemplary embodiments of visual and/or acoustic privacy features. For example, exemplary embodiments are disclosed that include visual and/or acoustic privacy features for furniture (e.g., office chair, desk, table, cubicle, etc.). The visual and/or acoustic privacy features are movable relative to the user and/or furniture between at least a first configuration and a second configuration. In the first configuration, the visual and/or acoustic privacy features may be configured such that they do not inhibit the user from interacting with others. In the second configuration, the visual and/or acoustic privacy features may be configured to provide the user with at least some visual and/or acoustic privacy and isolation from others.

Abstract: A device for mounting an electronic display to a wall includes a support structure operably connected to a tilt head assembly and a display interface structure. The support structure includes an arm assembly that can be extended and rotated so that the electronic display avoids contacting the wall. The tilt head assembly includes an attachment member, guide structures for tilting the electronic display so that the electronic display remains self-balancing, and a plate for positioning the guide structures. The display interface structure facilitates attachment of the attachment member to the electronic display.

Abstract: Described herein are mounting plates which facilitate securing of the electrical switching device to an object. The plate mounts to an object and is configured to secure one or more electrical switching devices. The mounting plate includes a planar surface having a plurality of first through holes configured to secure an electrical switching device to a first side of the planar surface. The mounting plate further includes a bracket attached to a second side of the planar surface configured to secure the mounting plate to another object.

Abstract: A vehicle anchored accessory holder may include a base plate, a brace connected to and extending upwardly from the base plate and an angled support connected to the at least one brace. The vehicle anchored accessory holder may also include a female fitting connected to and extending upwardly from the base plate. The female fitting may also be connected to the angled support. The female fitting may have an open top to receive at least one of an extension arm stem and an accessory. A first tube and a second tube may be connected to an upper portion of the female fitting to receive a connector adapted to move the female fitting between an opened position and a closed position.

Abstract: A tool stand mountable to a tool having a relatively long handle. The handle has a tool head mounted to the second end of the handle. The tool stand has a pivot member, an axle, a rotational stop arm and a leg assembly. The pivot member is coupled to a handle between the first and second end thereof. The axle is rotatably coupled to the pivot member, with the axle rotation in an orientation that is oblique or substantially perpendicular to a handle. The rotational stop arm is fixed to the axle. The leg assembly extends toward a second end of a handle, with the rotational stop arm and the leg assembly being angled at an angle that is less than 180°. The leg assembly, the rotational stop arm and the axle are rotatable about the pivot member between a stowed orientation and an operational orientation.

Abstract: The invention relates to a bicycle mounting arrangement comprising: a clamping device (100) which is constructed for a clamping connection with respect to a portion of a bicycle frame (104), a stand device (200) which comprises at least one stand base, and connection means for connecting the clamping device to the stand device, wherein the connection means have a conical portion (214) on the stand device (200) and a hollow space on the clamping device (100), or wherein the connection means have a conical portion on the clamping device (100) and a hollow space on the stand device (200), wherein the conical portion is able to be inserted into the hollow space in order to connect the clamping device to the stand device.

Abstract: A carriage holder for support of an apparatus includes identical upper and lower support plates having on their outer edge a number of indentations corresponding to the number of apparatus to be supported, said indentations providing aligned radial horizontal grasping surfaces on one side of said apparatus. The carriage holder also includes a series of vertical spring pivot pins joining said upper and lower support plates, adjacent to each said indentation, each such pin bearing a torsion spring loaded retractable clamp member to provide grasping surfaces in retracted position opposite to the grasping surfaces of said indentations. The carriage holder also includes an unobstructed aperture in each of said aligned support plates for mounting said carriage holder on a shaft. The carriage holder further includes a locking mechanism to hold said carriage in a fixed position on the shaft.

Abstract: A swivel device on which a chair can be secured, and which is configured to allow the easy elimination or reduction of accumulated dirt and/or sand. The swivel device may include a mounting device, and a base, wherein the mounting device is connected to the base so that the mounting device can rotate with respect to the base. The swivel device may further include a device for keeping a chair stationary on the mounting device, a first cavity located between the mounting device and the base, and a device for aiding rotation of the mounting device with respect to the base located in the first cavity. There may be a first opening of the mounting device leading to the first cavity, leading to a first opening of the base, which leads to an area outside of the swivel device. The swivel device accommodates all straight and lounge chairs.

Abstract: An angled frying pan stand that includes a truncated cylindrical tilt stand rotatably disposed upon a generally circular base, the tilt stand having a bottom side and an upper surface, the upper surface disposed at an acute angle relative the bottom side, each of a pair of side supports retractably extendable upon an extendible track portion disposed on a sidewall, with a first holding edge and a second holding edge configured to support an extant frying pan at an angle upon the top surface, the angled frying pan stand including a strainer piece removably attachable over the rim of a frying pan to partition a segment of the frying pan wherein grease may collect under the influence of gravity separated from any foodstuffs in the pan.

Abstract: A supporting bracket for a monitor includes a stand and a control structure. The stand comprises a pole. The control structure comprises a installation member, a clamping member, a resilient member and a control member. The installation member comprises an installation portion in which an installation hole is defined. The clamping member is engaged in the installation hole and against the pole. The resilient member is sandwiched between the inside wall of the installation portion and the clamping member. The control member is installed in the installation member. The control member is rotatable relative to the installation member to modulate a friction between the pole and the clamping member.

Abstract: A supporting bracket for a monitor device includes a stand and a controlling structure. The stand comprises a shank. The controlling structure comprising an installation member, a blocking member, a clamping member, a resilient member and a controlling member. The installation member comprises an installation portion in which an installation hole is defined. The blocking member is engaged in the installation hole. The clamping member is installed on the blocking member and against the shank. The resilient member is sandwiched between the installation portion and the clamping member. The controlling member installed in the installation member. The controlling member is rotatable relative to the installation member to modulate a friction between the shank and the clamping member.

Abstract: A floor stand with an angled arm is provided for use with a microscope. The angled arm allows the floor stand and microscope to fit within a small or crowded examination room while also allowing a physician and his assistant space to maneuver around the floor stand and examine a patient.

Abstract: Vacuum hose handling apparatuses and systems are disclosed herein. One exemplary implementation of the present disclosure includes a vacuum handling apparatus comprising a base, a support arm operatively coupled to the base, a connection hose configured to connect to an open end of an industrial vacuum hose, and a collection tube attached to the support arm and in fluid communication with the connection hose. In addition, the vacuum hose handling apparatus may be configured to allow movement of the collection tube relative to a corresponding collection vessel. Additional vacuum hose handling apparatuses and systems are also disclosed herein.

Abstract: A device for mounting an electronic display to a wall includes a support structure operably connected to a tilt head assembly and a display interface structure. The support structure includes an arm assembly that can be extended and rotated so that the electronic display avoids contacting the wall. The tilt head assembly includes an attachment member, guide structures for tilting the electronic display so that the electronic display remains self-balancing, and a plate for positioning the guide structures. The display interface structure facilitates attachment of the attachment member to the electronic display.

Abstract: The invention relates to a holder for mounting a shelf on the infusion stand of a medical device, for example, a dialysis machine. With this holder, a shelf surface for utilitarian objects on the dialysis machine is made available to the user. A shelf which is to be fastened on the infusion stand is necessary in particular with dialysis machines whose display screen is not integrated into the machine housing but instead is attached to the infusion stand. The surface of the machine in this case can no longer be used as a shelf surface. The holder can be mounted and removed easily without the assistance of tools.

Abstract: A support apparatus includes a support member having at least one thread, a collar attached to the support member that is moveable along the one or more threads of the support member and at least one arm assembly attached to or positioned on the collar. The one or more threads may include a ridge formed on the support member or a groove formed in the support member. The one or more arm assemblies are configured to hold an object such as, for example, a monitor, copy holder, liquid crystal display or light fixture.

Abstract: A support apparatus includes a support member having at least one thread, a collar attached to the support member that is moveable along the one or more threads of the support member and at least one arm assembly attached to or positioned on the collar. The one or more threads may include a ridge formed on the support member or a groove formed in the support member. The one or more arm assemblies are configured to hold an object such as, for example, a monitor, copy holder, liquid crystal display or light fixture.

Abstract: A musical instrument stand includes a clamping unit and a support unit connected with the clamping unit. The support unit includes a base frame and a connecting module. The connecting module includes a connecting portion and a spherical universal connector. The clamping unit includes a clamp assembly, a spherical mounting seat, and a positioning nut. The mounting seat has an external thread onto which the positioning nut is screwed onto and has a periphery provided with at least two elongate slits. Thus, the mounting seat of the clamping unit is pivotally connected with the universal connector of the support unit so that the support unit can be pivoted relative to the clamping unit so as to adjust the angle of the support unit freely and variably.

Abstract: A floor stand with an angled arm is provided for use with a microscope. The angled arm allows the floor stand and microscope to fit within a small or crowded examination room while also allowing a physician and his assistant space to maneuver around the floor stand and examine a patient.

Abstract: A support frame for supporting an intravenous bag and associated equipment, comprises a main pole adapted to be secured to a structure so as to be self-standing. A pivotable pole is adapted to support equipment associated with an intravenous bag. A pivot joint is provided between the main pole and the pivotable pole such that the pivotable pole rotates about the main pole. A rack is supported by the pivotable pole, the rack being adapted to support an intravenous bag.

Abstract: A multi-functional infant care and organizer system includes a base member and an elongate main body member detachably connected to and extending upwardly from the base member. The system also includes unit carrying member that is moveably connected to the main body member and unit member slidably and rotatably connected to the main body member and supported by the unit carrying member when slidably connected to the main body member. The unit member can be a storage unit, a changing station, a table, a light, a hanger, a bath pod, entertainment unit, an infant hammock, an infant mobile, a music box, or a drawing surface. Any combination of unit members may be connected to the main body member.

Abstract: A supporting bracket for a monitor device includes a stand and a controlling structure. The stand comprises a shank. The controlling structure comprising an installation member, a blocking member, a clamping member, a resilient member and a controlling member. The installation member comprises an installation portion in which an installation hole is defined. The blocking member is engaged in the installation hole. The clamping member is installed on the blocking member and against the shank. The resilient member is sandwiched between the installation portion and the clamping member. The controlling member installed in the installation member. The controlling member is rotatable relative to the installation member to modulate a friction between the shank and the clamping member.