In a tool attachment having an attachment housing on which a fastening interface is situated for fastening to an handheld machine tool, the fastening interface having an angular position setting unit for setting a specified angular position of the tool attachment on the handheld machine tool, and being equipped with a locking unit which, in a locked state, locks the tool attachment for operation on the handheld machine tool in the specified angular position, and, in the unlocked state, makes possible drawing the tool attachment away from the handheld machine tool, the angular position setting unit is operable in the locked state of the locking unit, to enable a change in the specified angular position.

An automatic locking joint for use with a reconfigurable device to permit the device to be selectively reconfigurable between various configurations.

The invention discloses a steering joint for connecting a bottom pipe and a supporting pipe, which comprises a base, a rotary seat and a locking piece. The base comprises a sleeve portion connected with the bottom pipe and a first pivoting plate comprising a guide groove. The rotary seat comprises a clamp for clamping the supporting pipe and a second pivoting plate comprising a through hole. The first pivoting plate and the second pivoting plate are pivoted together at a pivoting point, when the first pivoting plate and the second pivoting plate rotate relatively, the through hole is kept align to the guide groove. The locking piece penetrates through the through hole and the guide groove and clamps and fixes the first pivoting plate and the second pivoting plate. Through that a certain distance exists between the locking piece and the pivoting point, the load carrying capacity is increased.

An automatic locking joint for use with a reconfigurable device to permit the device to be selectively reconfigurable between various configurations.

An automatic locking joint for use with a reconfigurable device to permit the device to be selectively reconfigurable between various configurations.

An automatic locking joint for use with a reconfigurable device to permit the device to be selectively reconfigurable between various configurations.

The invention discloses a steering joint for connecting a bottom pipe and a supporting pipe, which comprises a base, a rotary seat and a locking piece. The base comprises a sleeve portion connected with the bottom pipe and a first pivoting plate comprising a guide groove. The rotary seat comprises a clamp for clamping the supporting pipe and a second pivoting plate comprising a through hole. The first pivoting plate and the second pivoting plate are pivoted together at a pivoting point, when the first pivoting plate and the second pivoting plate rotate relatively, the through hole is kept align to the guide groove. The locking piece penetrates through the through hole and the guide groove and clamps and fixes the first pivoting plate and the second pivoting plate. Through that a certain distance exists between the locking piece and the pivoting point, the load carrying capacity is increased.

Lights or other accessories can be mounted through a mount hole of an adapter plate which is pivotably supported upon a base. The base is attachable to an underlying structure, such as a motor vehicle, through bores passing through lateral wings thereof, or through bores in an angled flange thereof. The base includes a cylindrical body with an upper face. A central recess extends down into a center of the cylindrical body, located at a center of the upper face. The adapter plate includes a cylindrical extension which fits within the cylindrical recess. A series of holes surround the central recess in the upper face of the base. A set pin of the adapter plate is biased toward extending down from the adapter plate to reside within one of the holes in the upper face, to hold the adapter plate in one of multiple rotationally spaced positions.

A medical holding arm, comprising at least one joint with two joint bodies which are rotatable relative to each other about a rotational axis (D), wherein a first of the joint bodies has a plurality of locking pins and a second of the joint bodies has a plurality of locking recesses, the number of locking pins differs from the number of locking recesses, the locking pins each have an axially tapered engagement part, the locking recesses are respectively formed axially tapered to selectively receive each of the engagement parts for locking the joint, and when the joint is locked, at least one of the locking pins is received with its tapered engagement part completely in one of the tapered locking recesses, while at least one of the other locking pins is received with its tapered engagement part only partially in one of the other tapered locking recesses.

A connection device for an apparatus includes a first rotation shaft, a second rotation shaft, a synchronization bulk, and a guide bulk. The first rotation shaft includes a first synchronization section set with a first groove; the second rotation shaft is in parallel with the first rotation shaft and includes a second synchronization section set with a second groove. The synchronization bulk includes a first end, a second end disposed opposite the first end, and a position limitation section, with the first end being disposed within the first groove and capable of sliding within the first groove, the second end being disposed within the second groove and capable of sliding within the second groove; the guide bulk being set with a first containing groove, a second containing groove, and a guide groove containing groove.