摘要:
The invention which is the subject of this application relates to screw clampling apparatus for the application of a clamping force onto an article. The apparatus comprises a shank and a drive means for exerting a driving force on the shank to screw the same into a bore to exert a clamping force on an article. The shank is provided to shear once a predetermined turning torque from the drive means, and hence clamping force, is achieved and the plane of shear can be accurately determined relative to the surface of the article in which the bore is formed and into which the shank is screwed. This is an advantage over the conventional clamping screw which is provided to shear at one fixed weakened location and, when sheared, can leave an undesirable protruding portion above the surface of the article. The current invention allows a one size shank to be used for clamping articles of different sizes and the position of the planar shear can be located at a position along the length of the shank thereby eliminating the occurence of protrusions when shear occurs.
摘要:
The invention relates to a contact screw for the conductive cores of a screened cable, said contact screw being axially guided in a connection device by means of a screw thread. The inventive contact screw comprises a shaft (1) having a screw thread (3), and a contact tip (2), the section of said contact tip used to penetrate the cable insulation and the screen being provided with a coating (4) of insulating material. The outer surface of the coating (4) is provided with a screw thread (5) having a larger pitch than that of the screw thread (3) of the shaft (1).
摘要:
A shearable fastener has a threaded shank (10) adapted for engagement with a threaded bore and a head (12) formed for engagement with a drive tool. The shank (10) is formed with a series of axially separated weakenings (14) defining a series of shear planes, the weakenings (14) being formed such that the applied torque necessary to cause the shank (10) to shear increases progressively from the shear plane (14) furthest from the head (12) to the shear plane (14) nearest the head (12).
摘要:
Es wird eine Mehrfach-Abscherschraube angegeben, die einen zylindrischen Körper (32), der an seiner Außenseite ein Gewinde (34) besitzt, und einen Kopf (20) an dem einen Ende des Körpers (32) aufweist, der Angriffsflächen für ein Antriebswerkzeug bietet. Dabei sind mehrere axial getrennte Sollbruchstellen (22) vorgesehen, die eine Reihe von Scherebenen bilden. Der Körper (32) weist dabei einen zentralen Zapfen mit unrundem Querschnitt, in den axial beabstandete radiale Einstiche eingearbeitet sind, sowie eine oder mehrere Scheiben (26) auf, die auf den Zapfen (12) aufgesteckt sind. Der Körper (32) besitzt ferner an seiner Außenseite ein durchgehendes Gewinde (34).
摘要:
The invention relates to an electrical contact stud (1), a cap nut (12) made of plastics material, an electrical contact system for fastening an electrical contact and a method for fastening an electrical contact to a workpiece (11) to be painted. The invention is characterised in that a cap nut (12), which can be economically produced, made of plastics material, which does not necessarily have to be electrically conducting, is used for fastening an electrical contact shoe (21). As a plastics material nut can be designed as self-securing, the required maximum torques for producing the contact are relatively small, in particular, for example 8 Nm, whereby fastening an electrical contact is made possible even with thin sheets of metal with sheet metal thicknesses of less than 0.6 mm without deformations. The cap nut (12) made of plastics material serves in a first step as a seal against the penetration of paint into the electrical contact region and in a second step for fastening a contact shoe (21).
摘要:
A shearable fastener comprises an operative part, eg a threaded shank (11), capable of clamping engagement with an object to be fastened, and a shearable part, eg an hexagonal head (13), adapted to shear from the operative part upon application of a predetermined torque. A restraining component (15) joins the operative part and the shearable part and retard movement of the latter when shearing of the fastener occurs.
摘要:
A conductive male thread (22) has a thrust bearing flank (22a) coated with an insulating paint layer (23), and a conductive female thread (12) has a thrust bearing flank (12a) formed with a conductive projection (13) to break through the paint layer (23) and bite in that flank (22a).
摘要:
A shearable fastener has a threaded shank (10) adapted for engagement with a threaded bore and a head (12) formed for engagement with a drive tool. The shank (10) is formed with a series of axially separated weakenings (14) defining a series of shear planes, the weakenings (14) being formed such that the applied torque necessary to cause the shank (10) to shear increases progressively from the shear plane (14) furthest from the head (12) to the shear plane (14) nearest the head (12).
摘要:
A terminal attaching/detaching device includes a housing, an engaging member, and a movable member. The engaging member is configured to move in a first direction toward a terminal inserted in the housing to engage with the terminal, and is configured to move from the terminal inserted in the housing in a second direction to disengage from the terminal. The movable member is configured to move in concert with the engaging member in the moving process thereof in the first direction, and is configured to move the engaging member from the terminal inserted in the housing in the second direction, so that the engaging member is disengaged from the terminal.