A liquid ejecting head is mounted on a carriage in which a first positioning hole defined by a first inner surface is provided. The liquid ejecting head includes a first positioning member and a first intermediate member. The first intermediate member includes a first expansion portion being capable of being inserted into a first positioning hole and abutting on the first inner surface by expanding in a radial direction intersecting with an insertion direction of the first expansion portion. The first expansion portion includes a first insertion hole into which the first positioning member is inserted and expands in the radial direction by the first positioning member being inserted into the first insertion hole.

A positioning device for fixing a vehicle registration plate in an affix hole of a vehicle contains: a connection member, at least one fitting sleeve, a flexible bushing, an operation sheath, and a screw rod. The connection member includes an arcuate section and two flat sections, and the arcuate section has an elongated orifice. Each of the at least one fitting sleeve includes a first through orifice, a first protrusion, and an indentation. The flexible bushing includes a peripheral rib, a second through orifice, multiple slits, and a second protrusion. The operation sheath includes a taper, multiple retaining ribs, and a threaded orifice. The screw rod inserts through the first through orifice of each fitting sleeve and the second through orifice of the flexible bushing to screw with the threaded orifice of the operation sheath, and positioned on the screw rod are a washer and a nut.

Friction stabilizer pull tester apparatus and method for testing friction stabilizer type rock bolts including a pull tester toolhead comprising a tension rod with a radially expanding collet device inserted and expanded in a friction stabilizer steel tube. A confining collar on the tension rod for restricting longitudinal movement of the expanding device and outward deformation of the friction stabilizer tube at a friction stabilizer ring flange. A pre-tensioning device applies an initial force to seat apparatus and a pulling apparatus applies a greater load force to the tension rod to determine load capacity of the friction stabilizer.

A positioning device for fixing a vehicle registration plate in an affix hole of a vehicle contains: a connection member, at least one fitting sleeve, a flexible bushing, an operation sheath, and a screw rod. The connection member includes an arcuate section and two flat sections, and the arcuate section has an elongated orifice. Each of the at least one fitting sleeve includes a first through orifice, a first protrusion, and an indentation. The flexible bushing includes a peripheral rib, a second through orifice, multiple slits, and a second protrusion. The operation sheath includes a taper, multiple retaining ribs, and a threaded orifice. The screw rod inserts through the first through orifice of each fitting sleeve and the second through orifice of the flexible bushing to screw with the threaded orifice of the operation sheath, and positioned on the screw rod are a washer and a nut.

The disclosure relates to an anchor system having an internally threaded anchor and a bolt or shaft screwed together with said anchor for holding an add-on component in a hole that is pre-drilled into a wall made of concrete or brick work, characterized in that the bolt of shaft comprises a coil spring which is wound suitably to the inner thread of the internally threaded anchor and screwed into said inner thread.

Concrete coupling assembly comprises a base holder for being attached to a concrete forming surface, the base holder including a central opening; a coupler having one end disposed within the central opening, the coupler having an axis for being positioned substantially transverse to the forming surface, the coupler having first and second threaded bores through the one end for attachment of a threaded rod; and a separate anchor body threadedly attached to another end of the coupler.

An anchor bolt (40) according to the present invention has a taper member (7) threadably engaged with the rod (4), and three or five abutment parts (12) fitted over the taper member (7). The taper member (7) has a cross section in a form of an equilateral triangle or pentagon, and three or five inclined surfaces (10) at respective sides of the triangle or pentagon. The inclined surfaces (10) are inclined closer to a central axis of the taper member (7) toward a base end of the anchor bolt (40). Each abutment part (12) has an inner surface (11) which is inclined closer to the central axis of the taper member (7) toward the base end and which abuts the inclined surface (10) of the taper member (7). In a state in which the taper member (7) and the abutment parts (12) are inserted into the attachment bore (2), when only the taper member (7) is moved toward an opening of the attachment bore (2), the outer peripheral surface (15) of the abutment parts (12) are pressed against the inner peripheral surface (2a) of the attachment bore (2) so that the abutment parts (12) are fixed in the attachment bore (2).

Concrete coupling assembly comprises a base holder for being attached to a concrete forming surface, the base holder including a central opening; a coupler having one end disposed within the central opening, the coupler having an axis for being positioned substantially transverse to the forming surface, the coupler having first and second threaded bores through the one end for attachment of a threaded rod; and a separate anchor body threadedly attached to another end of the coupler.

A starting block lock having a clamp, top and bottom locking wedges, and a rod is provided. The clamp includes top and bottom portions each having an inside surface and a body between the top and bottom portions. The body includes a cylindrical bore extending on a longitudinal axis between the top and bottom portions. The top and bottom locking wedges each include an outer surface, an inner surface, a side surface, and an aperture extending between and through the outer and inner surfaces. At least a portion of each of the side surfaces slidably contact the inside surface of the clamp. The rod extends through the apertures and the cylindrical bore and is configured rotate in a first direction to linearly displace the top and bottom locking wedges toward each other thereby providing an outward force against the inside surfaces of the clamp to expand the clamp.

An assembly includes first and second members connected via a connector that is axially insertable into a channel defined by passages of the first and the second member. The connector exhibits a length extending in a longitudinal direction of the channel and includes first and second expansion blocks, and one or more than one wedge between the first expansion block and the second expansion block, and is configured to be displaced longitudinally relative to the channel to thereby radially expand the connector relative to the channel. At a cross section halfway the length of the connector, a cross sectional area and a height of a first expansion block in a radial direction relative to the channel is smaller than a cross sectional area and a height of a second expansion block in said radial direction relative to said channel. A method of assembling such an assembly.