Abstract: The present invention provides systems and methods for laser marking of produce with a laser beam with a center wavelength in the mid-infra-red region without the need for additional surface agents or chemicals to enhance the marking. The present invention further provides produce marked by a laser beam with a center wavelength in the mid-infra-red regions that is free of any additional surface agents or chemicals.

Abstract: A metal plate for laser processing (such as a stainless steel plate or a titanium plate) and preferably an austenitic stainless steel plate suitable for use as a metal mask or the like which undergoes fine processing with a laser has an average grain diameter d (?m) and a plate thickness t (?m) which satisfy the equation d?0.0448·t?1.28.

Abstract: Methods of making solder preforms are disclosed. A ribbon of raw material is received, and a first annular solder preform is formed by laser cutting the ribbon. The edges of the first annular solder preform can then be cleaned. The cutout section removed from the middle of the first annular solder preform can then be laser cut to form a second annular solder preform that is smaller than the first annular solder preform.

Abstract: A screen (24A-H) of a specified thickness (T) for insertion in a gap (32) between surfaces of workpieces (32, 34) to be joined by brazing. The screen thickness determines and maintains the gap thickness during brazing. The screen has a higher melting point than the braze filler material (22), is wettable by a melt of the braze filler material, and may have a higher tensile strength than the braze filler material at operating temperatures of the braze joint. The screen may include electrical resistance heating wires (52, 62) to melt the filler material (46). The screen may be covered by the filler material, forming a brazing foil (20B). The screen may include electrically conductive insulated wires (92, 93) connected to a sensor (95) such as a thermocouple or strain gauge to monitor a condition of the braze joint during subsequent operation.

Abstract: A flux-cored wire for are welding of a duplex stainless steel includes a stainless-steel sheath filled with a flux and contains, with respect to the total mass of the wire, predetermined amounts of Cr, Ni, Mo, N, Mn, and Si, in which letting a Ti alloy content in terms of Ti be [Ti] and letting an Al alloy content in terms of Al be [Al], [Ti] and [Al] are predetermined values, and in which parameter A expressed as A=[Ti]+2×[Al] satisfies a predetermined value, and the balance is composed of Fe, a slag-forming component, and incidental impurities.

Abstract: A nickel-based superalloy with an increased oxidation resistance, power, and welding method, is provided. As a result of the addition of hafnium, no precipitation phases occur in the nickel-based superalloy and the proportions of chromium (Cr) and aluminium (Al) lead to a slightly reduced y?-content, thus achieving good oxidation resistance and weldability.

Abstract: Properties and performance of weld material between metals in a weldment is controlled by modifying one or more of the nitrogen content and the carbon content to produce carbide (e.g. MC-type), nitride and/or complex carbide/nitride (e.g. MX-type) type precipitates. Fusion welding includes (i) adjusting shield gas composition to increase nitrogen/carbon gas and nitride/carbide species, (ii) adjusting composition of nitrogen/carbon in materials that participate in molten welding processes, (iii) direct addition of nitrides/carbides (e.g. powder form), controlled addition of nitride/carbide forming elements (e.g. Ti, Al), or addition of elements that increase/impede solubility of nitrogen/carbon or nitride/carbide promoting elements (e.g. Mn), and (iv) other processes, such as use of fluxes and additive materials. Weld materials have improved resistance to different cracking mechanisms (e.g., hot cracking mechanisms and solid state cracking mechanisms) and improved tensile related mechanical properties.

Abstract: A welding clamping device includes a base plate and two positioning slide blocks, each of the positioning slide blocks includes a slide base and a cam, wherein the slide base includes a support plate and two cam holders fixed at two opposite ends of the support plate; the cam is rotatably mounted between the two cam holders via a camshaft for press-fitting a workpiece to be welded; and the base plate is provided with a slide slot, and the two positioning slide blocks are relatively slidably mounted in the slide slot. The device can better position a workpiece to be welded, improving welding quality; and clamping and unloading are easy and take a short time, improving welding efficiency.

Abstract: The present disclosure is directed to a system and method for repairing an abradable material coated on a casing of a gas turbine engine. The system includes an articulating guide configured to fit into an access port of the gas turbine engine. Further, the articulating guide has a proximal end and a distal end. The system also includes a repair tool configured at a distal end of the articulating guide. The repair tool includes a body having a proximal end and a shaped distal end, with the shaped distal end extending away from the body. Thus, the shaped distal body is configured to trench out an area of the abradable material comprising a defect. The system also includes a filler material for filling the trenched out area.

Abstract: A structural element for repairing a damaged component comprising a shaped cavity configured to receive the damaged component and a repair material, the shaped cavity comprising a material having a first melting point and the repair material comprising a material having a second melting point that is lower than the first melting point. The shaped cavity may comprise a preform for the damaged component. The preform may comprise a mold configured to reconstruct the shape of the damaged component. The repair material may comprise a first material and a second material, the second material having a melting point that is lower than the first material. The repair material may comprise a Nickel-Boron composition. The repair material may have a melting point that is approximately 40 degrees Fahrenheit lower than the melting point of the damaged component.

Abstract: A system for manufacturing an assembly board includes an undersupporting device, a carrier configured to hold the undersupporting device, a transporter, an undersupporting-device installer attachable to and detachable from the undersupporting device, a board processor, and a magnet provided on a lower surface of the undersupporting device. The transporter transports the undersupporting device to a working position by transporting the carrier to the working position while the carrier holds the undersupporting device on the lower surface of the carrier. The transported undersupporting device is fixed to the undersupporting-device installer by a magnetic force of the magnet at the working position. The transporter transports the board to the working position. The undersupporting device supports the lower surface of the board when the board is transported to the working position. The board processor performs a predetermined processing to an upper surface of the board.

Abstract: A method and apparatus are disclosed for installing a hanger clip. The apparatus may include a tool head that may be placed on the end of a pole. The tool head may include a channel for receiving the hanger and a passage that intersect with the channel and allows a wire to be threaded through the tool head and hanger. The method may involve positioning the hanger in the tool head such that the hanger is releasably engaged by a catch on the head. The wire is then threaded through the tool head and hanger so that opposing portions of the wire extend from the tool head. The hanger is then mounted to a support and released from the catch. Thereafter, the wire twisted about itself by rotating the tool head while moving the tool head downward to draw out the ends of the wire from the tool head.

Abstract: A spindle phase indexing device for a machine tool is equipped with a guide rail detachably or fixedly attached to a table, a phase indexing jig configured to travel on the guide rail and which includes a first fitting part, a cutting tool including a second fitting part configured to be fitted with the first fitting part, and a controller configured to store therein a phase of a spindle at a point in time when the first fitting part and the second fitting part are fitted together. The first fitting part and the second fitting part are formed such that rotation of the cutting tool is constrained when the first fitting part and the second fitting part are fitted together.

Abstract: Tool magazine for the provision of tools for a machine tool, wherein the tool magazine has a multiplicity of receiving positions for tools. A first tool can be removed from or inserted into a first receiving position along a removal direction, and at least one further receiving position for receiving a further tool is provided.

Abstract: Provided is a machine tool configured for machining by removing material from an object defining a machining surface and including a removal tool of material from the object and driving means configured to be placed directly in contact with the machining surface and to move said machine tool and, thus, the removal tool, with respect to the object.

Abstract: A counterbalance and drive system for a machine slide mechanism includes a counterbalance system having a first flexible connector suspended from a machine mount and interconnecting a slide mechanism and a counterweight and a drive system having a second flexible connector suspended from the machine mount and interconnecting the slide mechanism and the counterweight. The drive system includes both a drive motor operatively engaged along a length of the second flexible connector for vertically displacing the slide mechanism and a compliant connector operating within a limited range of compliance that imparts a regulated amount of tension along at least a portion of the length of the second flexible connector between the engagement of the drive motor and the counterweight.

Abstract: A rotating table is maintained in a stationary state by generating a clamping torque while ensuring a long enough lifetime of a plate spring. Provided is a rotating table device including: base members; a rotating member that is supported by the base members so as to be rotatable about an axis; a brake disk that is secured to the rotating member; and a clamping mechanism that clamps the brake disk, wherein the clamping mechanism is provided with a piston that is attached so as to be movable between a clamped position and an unclamped position in a direction along the axis with respect to the base members, a plate spring that is secured to the piston and the base members and that biases the piston toward the clamped position, and a coil spring that is disposed between the piston and the base members, and that constantly biases the piston toward the clamped position.

Abstract: A method of manufacturing a window for a display apparatus according to the present invention includes: providing, on a stage, a substrate including a foldable part bending around a folding axis extending in a first direction, and forming a groove on the foldable part. The forming the groove includes: grinding the foldable part by using a first machining wheel; grinding the foldable part by using a second machining wheel; and machining the foldable part by using a polishing wheel. The groove has at least one radius of curvature. The first machining wheel includes first abrasive grains, and the second machining wheel includes second abrasive grains less in size than the first abrasive grains.

Abstract: A RAMO4 substrate includes a single crystal represented by a formula of RAMO4 (in the formula, R indicates one or a plurality of trivalent elements selected from a group consisting of Sc, In, Y, and a lanthanoid element, A indicates one or a plurality of trivalent elements selected from a group consisting of Fe(III), Ga, and Al, and M indicates one or a plurality of bivalent elements selected from a group consisting of Mg, Mn, Fe(II), Co, Cu, Zn, and Cd). An epitaxially-grown surface is provided on at least one surface of the RAMO4 substrate. An unevenness having a height of 500 nm or more is not provided on the epitaxially-grown surface.

Abstract: A RAMO4 substrate includes a single crystal represented by a formula of RAMO4 (in the formula, R indicates one or a plurality of trivalent elements selected from a group consisting of Sc, In, Y, and a lanthanoid element, A indicates one or a plurality of trivalent elements selected from a group consisting of Fe(III), Ga, and Al, and M indicates one or a plurality of bivalent elements selected from a group consisting of Mg, Mn, Fe(II), Co, Cu, Zn, and Cd). An epitaxially-grown surface is provided on one surface of the RAMO4 substrate, a satin-finish surface is provided on another surface. The satin-finish surface has surface roughness which is larger than that of the epitaxially-grown surface.

Abstract: A device for blocking workpieces has an aligning station that includes a workpiece support for aligning a workpiece. A blocking station comprises a block piece mount and serves to block the aligned workpiece by use of a block material on a block piece, which can be mounted in the block piece mount in a centered manner in relation to a substantially vertically extending blocker axis. A workpiece carriage carries a holding head for the workpiece and is suitably guided and driven to transport the workpiece from the aligning station to the blocking station to position the workpiece along the blocker axis in a defined manner relative to the block piece held in the block piece mount, and to hold the workpiece during blocking in the defined relative position to the block piece with a gap between workpiece and body piece.

Abstract: A system for honing a shaft is provided. The system includes a rod having an axis and a head coupleable to the rod. The system also includes a drive motor coupleable to the rod such that the rod and the head are rotatable via the drive motor. The system further includes a linear actuator coupleable to the rod such that the rod and the head are translatable along the axis while being rotated via the drive motor.

Abstract: A finishing device includes a finishing belt, a finishing belt holding device, a first drive configured to rotationally drive a workpiece about a workpiece axis, and a second drive configured to oscillate the workpiece and the finishing belt relative to another along the workpiece axis. The finishing belt holding device has a holding section configured to hold a portion of the finishing belt. The portion has an active area configured to finish a circumferential workpiece surface. The portion extends in a plane which is vertical when referring to the direction of gravity and extends in a horizontal direction when referring to the direction of gravity and when viewing in the running direction of the finishing belt. The finishing device includes a workpiece holding device defining a workpiece holding axis which is vertical when referring to the direction of gravity.

Abstract: A method for polishing a polishing pad includes detecting, by a first sensor, a presence of a defect formed on a groove of a polishing pad; removing, by a polishing disc, the defect from the groove of the polishing pad; after removing the defect, measuring, by a second sensor, a remaining depth of the groove; and based on the measured remaining depth of the groove, applying, through the polishing disc, a polishing condition on the groove.

Abstract: There is disclosed an apparatus which can maintain a surface temperature of a polishing pad at a desired target temperature. The apparatus for regulating a surface temperature of a polishing pad, includes: a pad contact member which is contactable with a surface of the polishing pad and which has a heating flow passage and a cooling flow passage formed therein; a heating-liquid supply pipe coupled to the heating flow passage; a cooling-liquid supply pipe coupled to the cooling flow passage; a first flow control valve attached to the heating-liquid supply pipe; a second flow control valve attached to the cooling-liquid supply pipe; a pad-temperature measuring device configured to measure a surface temperature of the polishing pad; and a valve controller configured to operate the first flow control valve and the second flow control valve based on the surface temperature of the polishing pad.

Abstract: A RAMO4 substrate is formed from single crystal represented by a formula of RAMO4 (in the formula, R indicates one or a plurality of trivalent elements selected from a group consisting of Sc, In, Y, and a lanthanoid element, A indicates one or a plurality of trivalent elements selected from a group consisting of Fe(III), Ga, and Al, and M indicates one or a plurality of bivalent elements selected form a group consisting of Hg, Mn, Fe(II), Co, Cu, Zn, and Cd). An epitaxially-grown surface is provided on at least one surface of the RAMO4 substrate. The epitaxially-grown surface includes a plurality of cleavage surfaces which are regularly distributed, and are separated from each other.

Abstract: A lubricated mechanical polishing (LMP) process is provided that uses hard nanoparticles of less than 5 nm diameter dispersed in a fluid lubricant as a polishing slurry to produce an ultra-smooth surface on a hard metallic or non-metallic substrate with a sub-nanometer surface roughness substantially less than that produced by silica chemical mechanical polishing.

Abstract: Systems and methods for treating concrete, which includes the steps of wetting a surface of concrete with colloidal silica, allowing time for the colloidal silica to penetrate the concrete surface, and cutting the surface of the concrete with a bladed or segemented tool wherein the longitudinal blade or edge portion is positioned approximately at an angle between 30 degrees and 90 degrees relative to the surface of the concrete.

Abstract: A finishing apparatus includes a workpiece-receiving device, a rotary drive configured to drive a workpiece in rotation about a workpiece axis and an oscillatory drive configured to produce a relative movement between the workpiece and a finishing tool in a direction that is parallel to the workpiece axis. A workpiece-conveying device has a workpiece holder that is moveable by a drive device between a working position in which the workpiece is in position to be machined and a loading/unloading position in which the workpiece is loadable/unloadable. The workpiece holder has a support device configured to support the workpiece. The drive device is formed as a swivel drive such that the workpiece holder is swivelable between the working position and the loading/unloading position along an arcuate swivel path.

Abstract: The present invention relates to a mounting sheet comprising a mounting layer. The mounting layer comprises a mounting surface for mounting the substrate. The mounting surface comprises a first mounting area and a second mounting area, and wherein a mounting force of the first mounting area is stronger than a mounting force of the second mounting area. The sheet according to the invention has the different mounting areas, so that the substrate is easily unloaded when polishing is completed. Furthermore, the broken of the substrate due to removal and the duration and the difficulty of removal are reduced.

Abstract: A polishing apparatus and a polishing method capable of detecting whether a polishing tool has been brought into contact with a substrate, such as a wafer, and further capable of detecting a position of the polishing tool are disclosed. The polishing apparatus includes a substrate holder configured to hold a substrate, a pressing member configured to press a polishing tool against a surface of the substrate, an actuator configured to apply a pressing force to the pressing member, a motor-drive moving device configured to move the pressing member along the surface of the substrate, and a monitoring device configured to emit an alarm if a motor current supplied to the motor-drive moving device is smaller than a threshold value.

Abstract: A method for manufacturing a compressor scroll that appropriately impinges cavitation bubbles on target regions of a scroll. The method includes the step of water jet peening by jetting cavitation bubbles generated underwater by a water jet at a first side of an end plate (13A) of the scroll (13), with a center (P1, P2, P3) of the cavitation bubbles being offset from a center (O) of the spiral shape of a wall portion (13B) on the end plate (13A) and the step portion (13Aa) and the stepped portion (13Ba) positioned at an outer peripheral portion of the cavitation bubbles (C).

Abstract: A twist-lock assembly for locking and unlocking a feed spout and control cage in their respective operative positions on a centrifugal blasting wheel. The twist-lock assembly includes a stationary control cage adapter and a rotatable clamping plate. The control cage adapter is mounted on a side wall of the centrifugal blasting wheel housing and located at an access opening in the housing. The clamping plate is rotatable with respect to the control cage adapter for locking and unlocking the control cage and the feed spout in their respective operative positions in response to rotation thereof between a clockwise locking position and a counterclockwise unlocking position. The result is an improved assembly for quickly dis-connecting and re-connecting the feed spout and control cage to provide ease of maintenance.

Abstract: An abrasive article including a body including abrasive particles contained within a bond material, a first major surface, a second major surface, and a side surface extending between the first major surface and second major surface, and a coating overlying at least a portion of one of the first major surface or the second major surface. In an embodiment, the coating comprises at least one element selected from the group of chromium, nickel, carbon, nitrogen, tungsten, sulfur, molybdenum, iron, zinc, silicon, titanium, aluminum, zirconium, magnesium, zinc, boron, cobalt, calcium, or any combination thereof. In another embodiment, the coating comprises a cermet, a ceramic, or a combination thereof.

Abstract: The invention relates to pliers (1). The pliers might be embodied as crimping pliers (2), cutting pliers or pipe crimping pliers. In the pliers (1) pliers jaws (3, 4) are driven by hand levers (8, 9) via a toggle lever drive (13). The toggle lever drive (13) is not formed by toggle lever rods or toggle lever bars. Instead, imaginary toggle levers are formed by a plurality of toggle lever components (35) which are movable along contact contours (30, 37; 33, 38) relative to each other.

Abstract: A light bulb removal assembly includes a handle that may be manipulated thereby facilitating the handle to be directed toward a light bulb. A neck is coupled to the handle. The neck is comprised of a bendable material. Thus, the neck is positionable at a selected angle with respect to the handle. A cup is coupled to the neck and the cup frictionally engages the light bulb when the handle is directed toward the light bulb. The cup rotates when the handle is manipulated. Thus, the cup removes the light bulb from a socket.

Abstract: A cleanable reversible socket and driver for a hex head fastener having a driver shank with a hex shaped shaft having a tool mounting end and a socket mounting end and a collar therebetween. A cleanable reversible socket is provided having a hex passage therethrough rotationally lockable with the driver shank hex shaped shaft, The socket is removably, nonrotatably mountable onto the driver shank shaft at the socket mounting end up to the collar having two different sized hex socket ends. A magnet on the socket mounting end of the driver shank is to be located at a bottom of one of the two hex socket ends when the socket is mounted on the driver shank to hold the hex head fastener in one of the socket ends.

Abstract: A reversible planetary gear driver tool drives and removes fasteners and includes a first driving block, a planetary gear system, and a second driving block. The tool provides a speed advantage configuration and a torque advantage configuration. In the speed advantage configuration, a handle engages with the first driving block and a bit engages with the second driving block. Rotation of the casing is prevented. The first driving block rotates at a first input speed, and the tool converts the first input speed to a faster second output speed of the second driving block. In the torque advantage configuration, the casing is reversed and the handle engages with the second driving block and the bit engages with the first driving block. As the second driving block rotates at a first input torque, the tool converts the first input torque to a higher output torque of the first driving block.

Abstract: In an impact driver including an impact mechanism for percussive driving of an output drive shaft on which is provided a tool receptacle for receiving an inserted tool, the tool receptacle is embodied as a clamping chuck, a permanent connection being embodied between the clamping chuck and the output drive shaft in order to prevent at least tool-free detachment of the clamping chuck from the output drive shaft.

Abstract: A hand tool for fastening a fastener, such as a screw. The hand tool comprises a handle and a rotatable fastening head connected to a first end of the handle, and engaged with a manually driven actuator. The hand tool further comprises a fixed fastening head connected to a second end of the handle, which is configured to apply a configurable fastening torque to the fastener The fixed fastening head is selectively pivotable with respect to the handle about an axis parallel to the center axis of the fixed fastening head.

Abstract: An installation tool and related methods are provided. The tool can pull a strip of collated fasteners along a collated fastener path to a guide, where individual fasteners are sequentially separated from the strip and advanced into a workpiece. The tool can include a tension feeder located downstream of the guide. The tension feeder is configured to apply tension to the strip between the guide and a leading end of the strip. The tool can include a driveshaft configured to attach to a conventional drive tool chuck or a drive tool having hexagonal type drive components. The guide can be one piece and replaceable, with a guide body and a guide head. A strip slot can be defined in the same to align a fastener head with a backstop and facilitate entry of a fastener shank in a feed slot. Related methods of use are provided.

Abstract: An installation tool and related methods are provided. The tool can pull a strip of collated fasteners along a collated fastener path to a guide, where individual fasteners are sequentially separated from the strip and advanced into a workpiece. The tool can include a tension feeder located downstream of the guide. The tension feeder is configured to apply tension to the strip between the guide and a leading end of the strip. The tool can include a driveshaft configured to attach to a conventional drive tool chuck or a drive tool having hexagonal type drive components. The guide can be one piece and replaceable, with a guide body and a guide head. A strip slot can be defined in the same to align a fastener head with a backstop and facilitate entry of a fastener shank in a feed slot. Related methods of use are provided.

Abstract: A torque wrench is provided that includes a radio frequency identification (RFID) or near field communication (NFC) sensing mechanism that enables the wrench to receive information regarding the different attributes of a shaft that is operably connected to the wrench. The sensing mechanism can communicate with a corresponding RFID/NFC tag located in a shaft that is releasably connected to the wrench in order to receive information from the tag on the status of the shaft and set points for the application of torque using the shaft. Information can also be written and stored on the tag concerning the length of time the shaft has been in use.

Abstract: Methods and apparatuses for installing a piston ring onto a piston include a piston ring feeder having at least one projection feature and a receiving aperture. Methods include receiving a piston end having a piston groove into the receiving aperture until the piston groove is above piston rings on the piston ring feeder and below projection feature top ends; raising a ring to partially snap into the piston groove with ring ends separated by a first projection feature and the ring wrapped around a second projection feature; raising the piston such that the ring is pulled off the second projection feature while the first projection feature separates the ring ends; and raising the piston such that the first projection feature releases the ring ends and the ring fully snaps into the piston groove to form a gap between the ring ends of the ring seated in the piston groove.

Abstract: An energy storage tool includes a handle selectively linked to a power spring to deflect and store energy in the spring. The handle is decoupled from a link to the power spring by decoupling members in a release action. A peak release force results during the de-linking that is additive to a spring deflection force. An added motion bar adds leverage to the handle during the decoupling release action to reduce the peak release force.

Abstract: An improved tool belt hook is selectively deployable on a portable tool or device. The hook structure is deployable in selected directions or positions on the tool. A stowed position is also preferably included wherein the hook structure is substantially contained within confines of the tool body to be out of a user's way. A closely integrated pushbutton release may allow the hook to rotate between selected operative positions and automatically engage to such position. The button is easily operated while effectively remaining within confines of the tool body. The tool hook assembly is compact and low cost.

Abstract: A fastener-driving tool including a housing having an air connector, at least one of a power storage device and an electrical component associated with the housing and an electric motor assembly associated with the housing. The electric motor assembly includes a fan where air is supplied to the housing through the air connector and moves through the housing and contacts the fan to cause the fan to rotate, rotation of the fan causing the electric motor to generate electricity that is directed to the at least one power storage device and the electrical component.

Abstract: An angle tool having an output shaft part the height of which is low is provided. The angle tool includes an output shaft having a chuck part capable of holding a bit, a shaft that is provided so as to intersect the output shaft and that transmits drive force to the output shaft, and a gear housing that accommodates the shaft. The entirety of the chuck part is disposed in the gear housing. The output shaft includes a bevel gear that receives drive force from the shaft, and the chuck part is disposed inside the bevel gear. The chuck part is disposed in front of the shaft so as to intersect an extended line of a center axis of the shaft.

Abstract: It is an object of the invention to provide a more rational vibration reducing technique for a work tool. A representative work tool 100 has an outer housing 102, an inner housing 104, a brushless motor 115, a spindle 124 having a rotation axis extending in parallel to a rotation output shaft of the brushless motor 115 and configured to be rotated on the rotation axis within a prescribed angular range to drive a tool accessory 145, a front elastic member 110a disposed between a front inner housing region 104a and a front outer housing region 102a, and a rear elastic member 110c disposed between at least one of an intermediate inner housing region 104b and a rear inner housing region 104c and at least one of an intermediate outer housing region 102b and a rear outer housing region 102c.

Abstract: It is an object of the invention to provide an ergonomically excellent work tool while maintaining high manufacturing efficiency. A representative work tool is provided which performs a prescribed operation on a workpiece by driving a tool accessory. The work tool has an inner housing that houses a motor and a spindle, an outer housing and an elastic member. A first inner housing element and a second inner housing element are assembled while being opposed to each other in a transverse direction, and a first outer housing element and a second outer housing element are assembled while being opposed to each other in a vertical direction.