摘要:
An improved bolt/nut structure capable of preventing from dead locking and loosening and being vibration resistive, wherein, an internal threaded lining and an external threaded sleeve are made from helix springs with the cross section of each ring thereof in the shape of “]” and are used as an external thread and an internal thread for the bolt and the nut respectively to provide the function of dead locking and loosening and of vibration resisting. A plurality of expansion slits are provided on the internal and external peripheries of the helix springs, the springs with the expansion slits are suitable for use on the surface with collapsing of screw threads to suitably expand, and to confine the screw threads respectively. Moreover, a single or a plurality of helix springs are provided to form the internal threaded lining or the external threaded sleeve of one of various pitch gauges, thereby, the bolt structure has the capability of changing for the coarse and fine threads.
摘要:
A device for assembling two components (1,2) includes a lateral positioning set (3). The device includes a fixing screw (10), in particular threaded on the right, and capable of moving freely in a smooth through hole (13) provided in the first component (1), a spacer (20) bearing an external thread (23), in particular on the left, capable of co-operating with a tapped through hole (23), in particular on the left, provided on the second component (2) and an internal tapping (21), in particular on the right capable of co-operating with the fixing screw (10), the screw (10)/spacer (20) friction coefficient, directly or indirectly, being greater than the spacer (20)/tapped hole (23) friction coefficient, directly or indirectly.
摘要:
A conical screw connection for multi-disk shaft couplings is described, having a tension bolt (1), a first spring collet (3) arranged on the tension bolt and having a collar (2), at least one second spring collet (5) having a collar (4) and supported by the first spring collet, with the disks of the multi-disk set being securable on said second spring collet, wherein the seat between the tension bolt and the first spring collet is conical, and the seat between the first spring collet and the second spring collet is cylindrical, and a tension element (7) which axially clamps the disks of the multi-disk set, where the tension bolt has a threaded borehole (8) for a screw (9) whose head (10) is supported on the tension element. To permit optimum clamping of the multi-disk set using the same tool for axial and radial clamping of the disks, it is proposed that a force fit or a transition fit (11) be formed between the tension bolt and the first spring collet such that by tightening the screw, the disks of the multi-disk set are first clamped axially, and then the spring collets (3, 5) are widened radially.
摘要:
A screw with a threaded shaft which has a slot running lengthwise dividing the threaded shaft into two shaft halves. A deformable mass is provided in the slot and fills the slot. This mass prevents the screw threaded into a threaded hole or application-related cored hole from loosening by itself.
摘要:
The invention relates to a fixing element (1) for fixing insulation and scaling tracks on a fixed substructure. Said element comprises a screw (9) and a large washer (7) with a cylindrical extension (8). The screw (9) has two thread segments (13, 14), wherein one thread segment (13) interacts with the through hole in a reciprocal thread engagement located in a narrowed area (12) of the cylindrical extension (8). An axial relative movement of both parts can be achieved by reciprocally rotating the cylindrical extension (8) and the screw (9).
摘要:
An expansion bolt includes two symmetrical bolt halves. The bolt halves each includes an inner side, an outer side, a front face, a rear face, and outer threads are provided at the outer side for the mounting of a nut thereon. An insert block inserted in between the bolt halves after the bolt halves have been attached together and inserted into a hole on an object. A nut is threaded onto the outer threads of the bolt halves to secure the bolt halves to the hole of the object into which the bolt halves are inserted.
摘要:
Device for rapidly fixing cross-pieces to pairs of uprights, in particular pairs of legs of chairs, tables and the like, in which the cross-piece have inserted within a pair of cylindrical elements which each have a first thread in opposite directions to each other for insertion, axially, into the opposite ends of the cross-piece and a second thread in the same direction as the respective first thread for insertion into a corresponding seat of the uprights, the rotation of the cross-piece in the same direction causing the simultaneous pulling of the two opposite uprights until they come into stable contact against the opposite ends of the cross-piece.
摘要:
A bolt made from shape memory alloy that exists in a first state and is capable of changing to a second state when heated and remains in that second state even when cooled is used to self torque itself and clamp a first fixture to a second fixture. Preferred methods for using the self-torquing bolt are disclosed.
摘要:
A dowel pin of an assembly arrangement for joining two furniture parts. The dowel pin includes a fixing part with a recess into which a dowel shaft is fitted and is then fixed by the deformation and/or pressing-together of a jacket area of the fixing part surrounding the recess.
摘要:
A fastener system includes a screw or bolt which can be attached in a helicoil. The helicoil expands and torques by various means to maintain hold and purchase between the screw coil combination and the substrate into which the screw and helicoil are inserted even when the substrate recedes a significant distance from the screw and helicoil combination.