DE8604624U1 - Crimping pliers for pressing cable lugs and connectors onto electrical conductors - Google Patents

Description

Patent Attorney ·. 'S *. I 'I · * .. * ·. · _

Dipl.-Phys. Rudolf PeoFbobmb · '- ·; / 'j *' ·· ¹

Dickmannstrasse 45 c ■ Ruf (02 02) 55 61 47

5600 Wuppertal-Barmen

GM 4461/86

Utility model

Applicant: Gustav Klauke GmbH 8 Co. 5630 Remscheid

Crimping pliers for pressing on cable lugs yQd_Verb2ndern_auf_eJ.ectric_Le2ter

The invention relates to crimping pliers for pressing cable lugs and connectors onto electrical conductors, in which in the clamping jaws each have a wheel-shaped press die provided on the circumference with several different press troughs around one Bearing pin is rotatably mounted 'and which is provided with a rotation lock for the press die.

From DE-PS 28 41 588, DE-OS 14 65 239 and DE-GH 19 58 830 such crimping pliers are known in which the rotation lock either from slides acting on the back of the wheel-shaped press dies or from next to the bearing pin

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arranged / in locking holes of clamping jaws and press die insertable pins. These well-known locking

Ü facilities are expensive to manufacture in the Operation cumbersome and often require a relatively high level of service Κροίσο training of the head d «? r crimping pliers.

The invention is based on the object of the generic crimping pliers with a in the manufacturing effort, space requirement and in the Handling improved locking device to be provided.

The solution to this problem is achieved according to the invention by that the bearing pin is designed as a Hehrkantbolzen, which | is received by congruent polygonal bores of the clamping jaws and the press die, a protruding over the clamping jaws Has extension which has a reduced diameter, lying in the basic position above the press die section possesses, and that the bearing pin can be depressed against the force of a return spring until the reduced section lies in the area of the press die.

The invention has a number of advantages. On the one hand, the rotation lock is now formed by the bearing pin itself, see above that the attachment of separate parts is not necessary and the turning

| locking very space-saving on the crimping head of the crimping pliers

is brought. In addition, handling is extremely easy, as for

! an adjustment of the press die now only the bearing pin

pressed down a bit against the force of the return spring must be until the reduced diameter bolt section in Area of the press die, after which it is now freely rotated and adjusted to the desired press trough can. After releasing the button, the bearing pin returns to the basic position in which the polygon is again in the Polygonal bore of the press die is seated as a rotation lock.

According to further features of the invention is the return spring advantageously a helical compression spring, which between one jaw side and one attached to the end of the extension Collar is clamped. Appropriately is the Lagerbol zen provided at both ends with a collar in the form of a snap ring.

According to a preferred embodiment, the bearing pin and the polygonal bores are hexagonal and each side is hexagonal assigned a press trough.

The crimping pliers according to the invention are described in more detail below with reference to an embodiment shown in the drawing. In the drawing show:

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Mg. 1 in plan view the crimping pliers according to the invention in Working position Lung,

Fig. 2 shows a section along the line II-II in Fig. 1 and

Fig. 3 in a section analogous to Fig. 2, the defused Position of the press die.

The crimping pliers consists of the clamping jaws 1, 2 and the as Angle lever trained handles 3, 4. The handles 3, are at their angled ends by a pivot pin 5a interconnected, and the jaws 1, 2 are on the Bearing bolts 5, 6 are articulated to the handles 3, 4 and, in the front area, are also articulated to brackets 9 on both sides by means of bolts 7, 8.

The clamping jaws 1, 2 each consist of an upper and a lower plate 10, 11, between which a wheel-shaped, pressing troughs 12 having a press die 13, 14 is rotatably encompassed around a bearing pin 15, 16 in each case.

Each bearing pin 15, 16 is a hexagonal pin in the exemplary embodiment formed as a hexagonal bolt, which of congruent hexagonal bores 17, 18 in the plates 10, 11 of the

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Clamping jaw 2 and a congruent hexagonal bore 19 of the Press die 13 is added. The bolt 15 has a protruding over the jaw 2 extension 20, which with an im Reduced diameter portion 21 is provided. Between the top of the jaw 2 and a collar 22 at the top the extension 20 is clamped in a helical compression spring 23, a collar 24 provided at the lower end of the bearing pin 15 secures the basic position according to FIG. 2, in which the Press die 13 is rotationally locked by means of the polygonal bearing pin 15 on the clamping jaw 2. The collars 22, 24 are made each from a snap ring.

If the press die 13 is to be aligned with a different press trough on the opposite clamping jaw, the Bearing pin 15 in the unlocking position shown in FIG. 3 pushed, in which the reduced diameter section 21 now with such a game within the Hehrkantbohrung 19 the press die 13 is so that the latter can be freely rotated and adjusted. After releasing the bearing pin 15 presses the return spring 23 returns the bolt to the locking position shown in FIG.

Claims (4)

1. Pre-pliers for pressing cable lugs and connectors onto electrical conductors, in which a wheel-shaped pressing die, provided on the circumference with several different pressing depressions, is rotatably mounted around a bearing pin and which is provided with a rotation lock for the pressing die, characterized in that, that the position'-bolj'jn (15) is designed as a polygonal bolt, which is received by the convex polygonal bores (17, 18, 19) of the clamping jaws (1, 2) and the press die (13), one protruding over the clamping jaw Has extension (20) which has a reduced diameter, in the basic position above the press die section (21) and which can be pressed down against the force of a return spring (23) until the reduced section (21) is in the area of the Press die (13) is located. 2. Crimping pliers according to claim 1, characterized in that the Return spring (23) is a helical compression spring, which clamped between one side of the clamping jaws (2) and a collar (22) attached to the end of the extension (20) is,; ro «·« · ■■ • «■ · M IM • «t ι · t I -T- 3. Crimping pliers according to claims 1 and 2, characterized in that the bearing pin (15) at both ^ ends one Collar (22, 24) in the form of a snap ring or the like. Has, 4. Crimping pliers according to claims 1 to 3, characterized in that that the bearing bolt (15) and the Mehrküntbohrungen (17, 18, 19) are hexagonal and that each side is hexagonal a press trough (12) is assigned.