DE1944489A1 - cable ties - Google Patents

Description

PANDUIT CORP., Tinley Park, 111./USA

cable ties

The present invention relates to a cable tie for re-tensioning a cable harness, consisting of an elongated flexible strap and a head located at one end of the strap for locking the other End of the tape wrapped around the cable loom.

While cable ties can be used in general to hold different objects together, like this they are particularly suitable for holding electrical cables together. The cables are secured by cable ties held together so that it gives a satisfactory appearance.

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The previously known cable ties are generally in satisfactory in all those cases in which the cable strands are held statically, i.e. no external interference are exposed. If, on the other hand, wiring harnesses, for example are arranged inside motor vehicles and, as a result, repair work is occasionally necessary. If it proves desirable, these harnesses too remove or solve, so that the overhaul or repair can be carried out. In such cases, the cable harnesses are moved using the previously known cable ties can open easily so that the individual wires of the cable harness become free. It has also been shown that when using stiff wires - especially with Wires of larger diameter - insufficiently large forces can be applied to the cable lugs without them subsequently opening again.

Accordingly, it is an object of the present invention to provide a To create cable ties senr simple construction, which does not have these disadvantages mentioned above and which itself with Very large forces occur within the cable harness and with mechanical movement it does not open.

According to the invention this is achieved in that the head made in one piece with the tape is essentially a has a rectangular opening in which a pivotable clamping part mounted on a joint is arranged, the one on the inner surface opposite the clamping part, having parallel to it a set of teeth which engage teeth on the belt.

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According to a first embodiment, the cable tie a horizontal advance, which holds a support for the integrally manufactured clamping part forms. The connection of the Cloning and the advance is essential with that Clamping part only a swivel movement within of the head can perform. The connection of the clamping part and the advance, however, is sufficiently flexible that that Clamping part pivoted away when inserting the free end of the tape can be so that the on the surface of the Belt located rows of teeth along the on the clamping part teeth can slide.

According to a second embodiment, κι is an inclined one Advance on the contrary to that in the first embodiment horizontal advance provided so that the bein. Withdraw d <-s free end of the tape generated forces in seal the thickened end of the front wall gcx ^ ichtt; t are.

As the manufacture of cable ties from different Materials such as plastics and resins are subject to the tendency Difficult to adhere to the molds is - removing the cable ties on the form proves Time consuming and requires special treatments the Fcriao be rf laugh, but not always damage of cable ties can be excluded is a new process on the production of cable ties suggested that the pcrco surfaces be particularly are designed so that the cable tie can be removed without damage. As soon as the top injection mold is removed special devices are operated through which the cable tie is removed from the lower part of the mold.

009846/0943

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is thrown. According to a second method of manufacture von Kabe! binders is the lower part of the form in relation to the top of the mold is movable, the mold surfaces have a specific configuration so that there is enough space for the clamping member when the mold halves apart disconnected and the cable tie is ejected.

In order to improve the interlocking between the teeth, the teeth lie on a common surface that is clamped Condition is arranged essentially at the same distance from the inner surface of the rear wall, the inner surface extending beyond the area of the teeth. About the manufacturing process of the cable tie To facilitate, the planes formed by the flanks of the teeth converge on the side of the entry surface with those defined by the surfaces of the clamping part Planes, where the intersection angle of these planes is opposite. Can approach zero.

In order to achieve a good production of the cable tie, has one of the mold halves for molding one or more Molded parts below the teeth. The through the Formed surfaces of the undercut moldings formed levels converge with planes defined by the core parts for the formation of the Klecimteile, the intersection angles can approach zero.

When the mold halves are taken apart, the surfaces of the clamping part in the area of the exit surface of the head-forming molded part pulled away from the clamping part, whereby the same- bent in the direction of the one molded part so that the teeth are released from the undercut part of the mold half and the cable tie without damage the clamping part or the teeth can be removed from the mold. -

009846/094 3 bath original

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One type of shape is the one with the undercut Divide provided mold half separated from the other mold half receiving the cable tie, whereupon the cable tie from the latter mold half is ejected. Another type of shape is the one that has no undercut parts Mold half moved away from the other mold half in which the cable tie remains, whereupon the latter is ejected will.

In the following the invention will be explained and described in more detail with reference to embodiments, wherein on reference is made to the accompanying drawing. Show it:

Fig. 1 is a plan view of a first embodiment of the cable tie according to the invention,

Fig. 2 is a side view of the cable tie shown in Fig. 1,

3 is a rear view of the cable tie shown in FIGS. 1 and 2,

Fig. 4- is an enlarged sectional view of the in Fig. 2 through a circle indicated part of the cable tie,

Fig. 5 is an enlarged view of the head of the in Figs. 1 to 3 shown cable ties,

Figure 6 is a vertical sectional view taken along line 5-5 of Fig. 6,

7 to 10 are schematic views for explaining the Functioning of the cable tie shown in FIGS. 1 to 3 when re-tensioning a cable strand,

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11 is a schematic representation of the in Pig. 1 to 3 shown cable tie with Uiaschlingung among other things: ". Wire harness,

Fig. 12 is a partial view of a second embodiment horn of the Cable tie according to the invention,

Figure 13 is a vertical sectional view taken along line 13-13 of Fig. 12,

14 - a side sectional view along the line 14-14 of Fig. 13,

15 to 17 are schematic representations of a first advantageous one Embodiment of an injection mold for production of the cable tie according to the invention,

18 to 19 shy views of a second advantageous one Embodiment of the injection mold for producing the cable tie according to the invention.

In the following, reference is made to FIGS. 1 to 3 of the drawing may be taken, in which an integrally manufactured cable tie 100 according to the invention is shown. The cable tie 100 consists of a tape 1, on which one End of a head 120 is arranged with an opening 140 in which a clamping part 1 ^ 0 is attached. The cable tie 100 is used to hold together a cable harness 160, the consists of a plurality of individual lines 161, as is indicated in FIG. However, it should be understood be that the cable ties 100 are also suitable for holding other items together.

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The cable tie 100 preferably consists of one

tables organic plastic material, being a polyamide resin warped η is. The plastic material must be sufficient pliable stin to deform the various parts dt ε cable ties «100 to achieve, as in the Drawing shown is »It's an essential feature dt-r present *) invention that the cable tie 1oO a real one-piece Elen.t -.nt is.

The band 101 is elongated and flexible and has an outer end 102 which is bent downwardly, as can be seen with reference to FIG. The outer end 102 has a point 105 & it laterally beveled sides 10 ^. The outer end 1Gc also has a r Equally spaced on the outer end 1Oianorür ... t sii; d. On the outer surface 10? there is also provided an aifie-r · .r approach 1C-9, which in terms of the transition areas nwii, chf.n dera outer π end ΛΟΖ and the remaining part of the 3ru; ue-s 1C1 runs transversely to the same e-ir.en. Katvlstrang GO to keep the belt 101 temporarily in düir, Kcpf 12U, wit this ic, the following is to be described.

The band 1ü1 We-is also a pair of lengthways extending Side surfaces 110 which lie between the inner surface 112 and the outer surface 113. Within the Inner surface 112 is a row of creams 115 arranged, which are arranged countersunk with respect to the inner surface 112. This cream 115 run lengthwise along the Volume 101, the width of this cream II5 being slightly

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is less than the width of the inner surface 112. As a result the teeth 115 come entirely within the body of the Band 101 to lie. As can be seen from the figure, the shorter teeth 115 are essentially perpendicular flanks 116 extending to the inner surface 112 and longer inclined flanks 117, as shown in particular with reference to FIG Fig. 3 can be seen.

The head 120 is made in one piece with the band 101 and consists of a pair of side walls 121, a rear wall 131 and a front wall 141, As can best be seen from FIG. 6 the side walls 121 arranged at a certain distance from one another and have inner surfaces 122, which extend over the full height of the head 120. These inner surfaces 122 are essentially parallel to one another, however, they are slightly divergent towards the top. The inner surfaces 122 consequently extend from the insertion surface of the tab head 120 serving inner surface 112 up to the exit surface 130, which is shown in Fig. 6 on the upper side of the head 120 is located. The inner surfaces 122 are arranged slightly further from one another than the distance between the Side edges 110 so that the tape 101 can be inserted between the inner surfaces 122 as follows should still be described. Each of the side walls 121 also has an outer surface 123 which extends from the exit surface 130 downwards and outwards to the entry surface 112 extends.

The rear wall 13I has an inner surface 132 and an outer surface 133, the inner surface 132 diverging from the exit surface 130 to the entrance surface 112 runs so that the rear wall I31 in the lower Area is thicker, as can be seen from FIG. 7

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is. As further shown in Fig. 7, the tape 101 is at the lower and thicker part of the rear Wall I3I of the head 120 attached.

Between the side walls 121 and the lower part. the rear wall I31 is provided with an advance 135, which extends in the direction of the front wall 141 and is essentially parallel to the entry surface 112 and the longitudinal axis of the belt 101 in the manufacturing state. According to FIG. 7, the advance 135 ends in a vertical surface 13 & j which is substantially perpendicular runs to the entry surface 112 and over a curved Surface is connected to the same. The ^ thrust 135 and the Surface 136 thus lead to the inner surface 122 of the side walls 121.

The front wall 14-1 has an inner surface 142, which is arranged at a certain distance from the rear wall 13I provided with the band 101. The inner surface 142 runs essentially perpendicular to the tread surface 112 and the longitudinal axis of the band 101 in * Manufacturing condition. The rear wall 13I and the Front wall 141 result in an opening 140, the longitudinal axis of which runs essentially parallel to the inner surface 142. The front wall 141 has an outer surface 143, which extends downward from the entrance surface I30 and ends at a certain distance from the entry surface 112. In this area it opens into a guide surface 145, which connects the inner surface 142 and the outer surface 143 to one another. The guide surface 145 is to a certain extent Distance from the entry surface 112, thereby in connection with the inner surfaces 122 of the side walls 121 a channel is formed within the head 112. This

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The channel enables the head 120 to rest on the cable loom 160 when the cable tie 100 is tensioned as shown in FIGS. 10 and 11. The exit surface 130 is inclined in relation to the entry surface 112 and the inner surface 142 by it drops in the opposite direction of the tape 101 . _;

Within the opening 140 of the head 120 is a clamp member 1.50 arranged, which is placed on the Vöstoss 135 and in one piece with the same .is connected. Bar clamp part 150 is designed such that it is in the attachment point of the clamping part 150 at the advance 135 over a certain area in the The starting point of the clamping part 150 can be pivoted to * As this is to be described in the following, this is Clamping part 15 ^ both in the manufacturing state and in all other pivoting states completely within the Head 120 between the entry surface 120 and the exit surface 130 arranged. -

The clamping part 150 has a jar of side surfaces on j according to. Pig. 5 and 6 essentially parallel to one another. ■■ run differently. The distance between the side surfaces I52 is slightly smaller than the transverse extension of the teeth II5 on tape .101. The clamping part 150 has according to FIG upper surface 153 and one towards the inner surface I.32 arranged rear surface 154-. The clamping part I50 is on the side opposite the inner surface 142 provided with a set of creams i55, the shorter flanks 156 and longer have sloping flanks 157, the shorter Flanks 156 run according to FIG. 7 in the manufacturing state substantially perpendicular to the inner surface. 142 * The tips and approaches of the teeth 155 lie in common planes, the substantially parallel to the inner surface 142 of the front Wall 141 run. The tip-to-tip distance of the

009846/0943. :; - bad original

Teeth 115; This ensures that all teeth 155 of the clamping part 15 ' come into engagement flush ax with the teeth II5 of the belt 101, as will be described in the following. The clamping part 15 'also has a lower surface 159, which is essentially perpendicular to the inn. surface 1 ^ 2 and perpendicular to the entry surface 112.

In the state of use, the cable tie 100 loops around one another, as shown in FIG. 11 individual lines I6I existing wiring harness 16O. before the looping around the wiring harness I60 is the Head 120 and the parts connected to it, including the clamping part 150 in that shown in FIG Position that corresponds to the manufacturing state. It should be noted that the tips of the teeth 155 lie in a plane which is substantially parallel to the inner surface 142 of the Front wall, 1 ^ 1 runs, while the inner surface 1 ^ 2 and the The longitudinal axis of the opening 14O is perpendicular in the manufacturing state arranged to the entry surface 112 and the longitudinal axis of the belt 101 is.

The first step in attaching the cable tie 100 around a wire harness 160 is to remove the outer end 102 3 in the direction of the arrow 162 into the head 120 to introduce If this should be desired, the outer Attachment 109 can be temporarily engaged in order to achieve the Tape 101 to hold the lines 161 around. That way Further lines 161 can be added to wiring harness I60 or be removed from the same before the teeth II5 finally with the teeth 155 are engaged.

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Subsequently, the outer end 102 can be gripped using the lugs 108 and in accordance with FIG. direction of arrow 163 are drawn. The two rows of the lugs 103 are arranged at a distance which is greater. than the width of the teeth 155 'so that the lugs 108 cannot engage the teeth 155 during the insertion of the band 101. The initial .Ineingriffnähme between the band 10.1 and the clamping part I50 takes place with the lowest of the teeth 155 - ie the tooth 155 closest to the entry surface 112 - whereby the clamping part 150 is pivoted clockwise as shown in FIG. During the further tensioning of the belt 101, the teeth 115 of the belt 101 according to FIG. 9 successively come into engagement with the lowermost tooth 155 of the clamping part 150, whereby the clamping part * 150 is held in the illustrated position. Preferably, during clamping a tool is used as described for example in US Pat J I69 560 or 3. 25 ** · 680th Due to such a tool, at the end of the tensioning process, the tape 101 is automatically cut off at a point above the exit surface 130 of the head 120, as indicated in FIG. 10 by the arrows 16 ^.

After the cutting process of the tape 101 causes the Tension of the tape 101 around the cable loom 16O pulling the tape 101 back from the head 120 in the direction of arrow 165, i.e., in the direction of releasing the cable tie. While This movement of the belt 101 brings the tooth 115 above it of the lowermost tooth 155 in engagement with the same and generated a pivoting of the clamped part I50 in the opposite direction Clockwise from the position shown in Fig. 9 to position shown in FIG. By further withdrawing the belt Ιοί, the teeth 155 get above the bottom Tooth I55 progressively engages teeth II5 of the ligament 101 until all teeth 155 of the clamping part I50 correspond to the corresponding

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Teeth 115 of the belt 101 are in engagement. As soon as the state shown in FIG. 10 is reached, the individual elements including the clamping part 150 are essentially in the same position in which they are in accordance with Pig. 7 had been made. The strip 101 between the front wall 141 and the clamp portion 150 is located festgehalten.Dabei the inner surface 142 of the front wall 1Λ1 i- i ^{n it} te ^r contact with the surface 113 of the

• · "-" ■. ■ · _: > _ _.,. '_- · ■ <: _; !!. '»Ο hu ν -, ^ j -!,., Ι ™., ' \ _ I.-Band 101, while a certain number of teeth 155 of the band 101 are in locking connection with the teeth 155 of the clamping part 150 .

It should be noted that both during the insertion of the tape 101, during the tensioning of the tape 101 around the cable loom 16O as well as during the subsequent backward movement of the band 101 in the locked position shown in FIG. 10, the clamping part 150 is only limited Pivoting movement with respect to the head 120 about the pivot axis formed by the protrusion 135. It is furthermore emphasized that the clamping part I50 both in the manufacturing state according to FIG. 7 and in all other pivoted states 8 to 10 completely within the head 120 between the entry surfaces 112 and the exit surface 120 is arranged. As a result, no part of the clamping part I50 protrudes during the attachment of the cable tie 100 around the wiring harness I60 outside the head. 120,

The through the inner wall 141, the guide surface 145 and the inner surface 122 of the side wall 121 is formed Channel facilitates the insertion of the tape I03 into the Opening 140 and also allows head 120 to be shallower is applied to the wiring harness 16O.

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As soon as the individual parts are tense in de'm Condition according to Fii ;. "10 results in any 'the' band 1Oi occurring from the opening 14-0 in the direction of a solution Force that the teeth '155 of the clamping part I50 stronger with the corresponding teeth 115 of the band 1Ö1 in engagement arrive so that the tape 101 between the inner surface 1 * 1-2 and the clamping part I50 is firmly held. This prevents accidental detachment of the tape 101 from the head 120. Referring again to FIG. 7, it can be seen that the tips of the teeth 155 lay in a common plane, which both in the manufacturing state and in the tensioned state essentially at a constant distance of the inner surface ί4-2 is arranged. One also recognizes that the inner surface 142 extends on both sides beyond the teeth 155 both in the direction of the entry surface and the exit surfaces I30 extends, whereby a good support for the tape 101 is formed so that all Teeth 155 engage and in the tensioned state remain.

The planes formed by the flanks of the teeth 115 converge on the side of the entrance surface 112 with planes, formed by the surfaces 153 »154 of the clamped part are »The points of intersection of these planes lie on the exit side of the head 120. Thereby, angles occur that go up to Can go zero, which means that the planes are parallel to each other. The convergence of the various surfaces enables the clamping part I50 including of teeth 155 in one piece with the remaining parts of the Cable tie 100 is produced, as will be described below.

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Referring to Fig. 9, it will be seen that even in the clockwise swiveled position of the clamping part 150 enough clearance between the rear surface 155 of the small part ils 150 and the inner surface I32 of the rear ■ 'Andung 13I is present, so that during insertion of the land 101 in the head 120 an unmolested pivoting of the terminal part I50 is possible. This prevents that teeth 1-55 of the clamped part I50 will be damaged and the film part I50 during the insertion of the tape 101 in FIG the opening 1 ^ 0 is torn out of the head 120. ,

In the form of an example, it should be mentioned that a cable tie 100 has been produced for cable looms 160 with a diameter of 4.5 cm, its total length 19 »0 cm, the width of the strip 101 4.5 mm and the length of the outer end 102 3, 1 cm. The area of the belt 101 provided with teeth 115 had a length of 1 * 4 -, ^ cm. The depth of the teeth 115 was 0.25 ram and the sloping flanks of the same Ö _t 6k mm. The slope of the surface f1? compared to surface 112 was 22 °. The dimensions of the head 120 in the direction of the tape 101 were 6.6 mm, the height 5 mm and the width 8.1 mm. The inclination of the surfaces 123, 133 and IU3 was 5 °, while the inclination of the surface I32 was 3. The tape 201 had a thickness of t mm, the distance between the surfaces 153 and 159 was 2.5 mm. The distance between surfaces 112 and 1 ^ 5 was 0.2? mn, while the distance between the surfaces was 1 ^ 5 »135 1> δ mm.

In FIGS. 12 to 14 there is a second embodiment of the integrally manufactured cable tie according to the invention shown. Since many parts of this cable tie 200 are identical in construction to the one already described Cable ties 100 are designed for

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the individual parts use reference numbers from the 200 series, which correspond to the parts of the cable tie 100 in the 100 series.

The essential difference between the cable tie 200 shown in FIGS. 12 to 14 and the cable tie 100 already described is the design of the protrusion 235. With reference to FIG. 13 it can be seen that the protrusion 235 of the cable tie 200 is inclined with respect to the longitudinal axis of the band 201 in the manufacturing state, while the protrusion 135 of the cable tie 100 runs essentially parallel to the band 101. Otherwise, the construction and mode of operation of the cable tie 200 is similar to the cable tie 100 already described. It should be noted that the surface 235 as manufactured is at an angle of 30 °
Band 201 is arranged.

at an angle of 30 ° to the longitudinal axis of the

An advantageous method for producing the cable ties 100 is shown in FIGS. 15 to "1-7". As shown, a set of molds 300 having an upper mold half 310 and a lower mold half 320 is provided. The mold halves 310 »320 meet along a connecting plane 301 with their contact surfaces 3I1 and 321, respectively. Inside the upper mold half 3I0 there is a molded part 315 with a closure surface 315, while inside the lower mold half 320 a lower molded part 325 with a closure surface 328 is provided , which cooperates with the closure surface 318. The mold halves 310 and 320, with the corresponding mold parts 315 »12-5 ^ ⁿ ^ ^or closed position, result in a mold cavity which is designed to be complementary to the cable tie 100. The various surfaces of the mold halves 3IO, 320 and of the molded parts 3I5, 325 are provided in the figures with reference numerals of the 300 series, i.e. they correspond to the corresponding surfaces of the cable tie 100 of the 100 series. Accordingly, the a '-

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individual surfaces of the mold 300 will not be discussed in more detail.

It should be emphasized that the molded parts 3 ^ 5 »325 to form the opening 1 * 4-0 and the clamping part 150 are trained. The molded part 3I5 has in particular undercut area pieces 357, -the corresponding Flanks 157 of the three lowest teeth 155 according to FIG. correspond. The shape 3 ° 0 is designed such that the two mold halves 3IO, 320 perpendicular to the longitudinal axis of the Federal 101 can be moved away from each other. In the closed state of the mold 300 are not shown Means are provided to put a certain amount of a synthetic organic plastic into the mold cavity injected, whereby the cable tie Ϊ00 is formed after this material has cooled down. As shown this is, the cable tie 100 is when removing the upper mold half 3IO through the lower mold half 320 held, whereupon the accomplished Cabal Binder 1ΌΌ from the lower mold half 320 is removed. For this purpose, a plurality of ejector pins 3 * 4-0 are provided, which are shown in With respect to the lower mold half 320 are displaceable in the vertical direction in such a way that the cable tie 100 from the lower mold half 320 is ejected.

In order to remove this cable tie 100 from the undercut parts of the upper molding 3I5, the different shape surfaces a certain configuration exhibit. More precisely, the undercut parts of the mold surface that are used to form the teeth 155 must laugh in the area of the entry surface - i.e., the '

the formation of the tooth flanks 157 serving mold surfaces 357 - corresponding to that in Fig. 15 by the line '

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schematically shown level with the training of the Surfaces of the clamping part 155 in the area of the exit surface 130 and away from the front landing

Serving mold surfaces - ie that of the formation of the 'en . ·.

OberfIäche357 dieriden surface converge 35 ^ +, as shown schematically by the lines 3 ^ 7 "of Fig. 15, the point of intersection on the exit side of the head is visible 120, the angle of the lines intersect Ί16 and 3 ^ 7» wherein between plane ^ hG and surface 330 is greater than the angle between plane ~ jh7 - and surface 330.

As this can best be seen from FIG. 16, the above-described "onvergence of the planes 346 ^l ^ ^r "> 3 ^ 7 causes the clamping part 150 to be pivoted clockwise as soon as the mold 330 is opened , wherein the upper surface 354 of the upper mold part 315 moves away from the surface 154, since the against the surface I5? pressing mold surface 357 presses clamp member 150 clockwise. It thus results that when opening the mold 300 on the rear or /. A gap is formed on the right side of the clamped part 150 according to FIG. After the upper half of the T'orm 310 -. As shown in FIG. 17, the cable tie 100 has been removed, the ejector pins 34o are actuated so that the molded cable tie 100 is ejected from the lower mold half 320.

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By the in d ^ n Fie ;. 15 to 1.7 shown molding process For example, a plurality of internally toothed cable ties 100 may be formed without the need is to move any mold halves in the lateral direction during the opening shown in FIG In the mold 3GO, the clamping part 150 is pivoted backwards into the cavity of the upper mold part 315, so that 3 with a large number before »inner. Cable ties 100 provided with teeth 155 in one piece and made from the mold 300 in a known manner be able to ground away. As a result, the upper molding 315 must be firmly attached to the upper mold half 3IO. .

In the method shown in FIGS. 15 to 17, the clamping part I50 is deflected into the cavity during the separation of the mold halves 3IC and 320, whereupon the cable tie 100 is ejected from the lower mold half by the ejector pins 3 ^ 0. It should be emphasized, however, that the mold halves can first be separated from one another, with the cable tie 100 remaining in the mold half provided with intersections and that then the cable tie IOC r.with the aid of ejector pins with the deflection of the KIeEiEt-H ils 1 ^ 0 can be ejected from the mold half. Such a method is shown in Figs. 1 x ⁼ and 1-9 are "found geniäi? Which a mold 4CO with an upper mold half 410 and a lower mold half 420 is provided, which Fomhälften 41.0, 42ö riding along a connecting plane 401 their Contact surfaces 411, 421 are put together.

v.'ährcnd the upper mold half 41c with a c-ine. Locking area 41.3 having upper mold part 415 is provided, the lower mold half 320 is provided with a closure surface 4cB having lower molded part 425 * The

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circuit face 428 acts with the closure surface 418. The mold halves together · 410, 420 with their mold parts 415 ^1, 425 result in a mold cavity which is complementary to the cable tie 100th The various surfaces of the mold halves 410, 420 and of the molded parts 415, 425 "which are used to form the surfaces of the cable tie 100" are provided with reference numbers "of the 400 series, which correspond to the corresponding reference symbols of the cable tie 100 within the 100 series. As a result, the individual surfaces of the mold halves 410, 42Q and the mold parts 415 »425 need not be described in more detail. It should be emphasized that the mold parts 415, 425 form the opening I4o and the clamping part 150 and that the lower mold half 425 has undercut surfaces 457 which serve to form the flanks 157 of the top three teeth 155 of the clamped part 150.

The mold 400 is designed in such a way that the mold halves 410, 420 can be removed from one another perpendicular to the longitudinal axis of the strip 101 and likewise perpendicular to the entry surface 112. In the closed state of the mold 400, means (not shown) are provided for injecting a certain amount of a synthetic organic plastic heart into the mold cavity, so that a cable tie 100 is formed as soon as it cools. As shown, the cable tie 100 is retained by the lower mold half 420 when the upper mold half 410 is removed. Subsequently, the produced cable tie 100 is removed from the lower mold half 420. A plurality of ejector pins 44o are provided for this two, which are vertically displaceable with respect to the lower mold half 420 in such a way that the molded cable tie 100 is ejected from the lower mold half 320.

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To remove the cable tie 100 from the undercut portions of the lower molding 425 during To enable ejection of the cable tie 100 from the lower mold half 420, the various mold surfaces have a specific configuration .. The planes formed by the undercut parts for the formation of the teeth 155 in the area of the entry surfaces 112 - i.e. the mold surfaces 457 for the formation of the tooth flanks 157 - must -for this purpose with that of the training of the surfaces of the clamping part 150 serving in the area of the exit surface 130 and removed from the front Wall 141 lying plane - i.e. the plane 454 for the Formation of the surface 154 - converge, the Be the point of intersection on the exit side of the head 120 got to.

As can best be seen from FIG. 19, results from such a convergence of the planes that the clamping member 150 is pivoted counterclockwise when the cable tie 100 is ejected from the lower mold half 420 by the ejector pins 440 will. As you do so, the rear surface 154 moves away from surface 454 of lower mold part 425, there the mold surface 457 in contact with the tooth flanks 157 turns the clamping part 150 in the counterclockwise direction seeks to pivot. Since according to FIG. 19 on the rear or right side of the clamping part 150 a gap is formed once the ejector pins 440 the cable tie 100 eject from the lower mold half 420, the clamping part 150 can pivot counterclockwise, teeth 155 disengaging from the undercut portions of lower mold portions 425.

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Through the in-Fig. In the method illustrated in FIGS. 18 and 19, a plurality of internally toothed cable ties can be molded without the need for lateral displacement of molded parts. During the ejection shown in Fig. 19, the clamping part 150 presses itself backwards into the cavity of the lower mold parts 425. Accordingly, the cable tie 100 can be molded in one piece with a plurality of internal teeth 155, since the teeth 155 are removed from the mold 400 in a known manner can. The lower mold part 425 can be firmly connected to the lower mold halves 420.

ORIGINAL BATHROOM

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00 98 46/094

Claims (11)

194U89 F a t c * η t a η s ρ r ü c h e I ^ i.abelbinder for spanning: inws Äabelstrangcs, consisting of an elongated flexible band and an an. the one end of the band arranged \ opf to lock the rndcren end of the around d ^ n. Kp.belstra.ng looped band, thereby geke η η ζ eich η et, dal? the gas part te head ⁽¹ 20) integral with de ta band (101) establishes a substantially rectangular opening (140) in w · lchcr sin at a Gclenkstück (151 * 251) mounted pivotable clamp member (15 '",. 250) is arranged, which on the inner surface (142, 242) opposite the clamping part (150,? ? 0'1) engaged teeth. 2.: 'abelbindor according to claim 1, dadufch g c k e η η - % α i η ct that the · surfaces (157 »257) dor ZrI.η« · (155, 255) -on the exit side i130, 230) with the surface (153, 15 ^ f 253, 254) d 3 clamps ·,; Ils (150, 250) converge, where the occurring 'prong! can be extremely small. 3. Cable tie according to claim 1 or 2, ipdurch GEK e η η - ζ ei ο h η e "t, that the inner surface (142, 242) of the head (12 NC, 220) substantially parallel m the teeth (155, 255) - the clamping part (I50, 250) runs. 4. Cable tie according to one of claims 1 to 3 »thereby g ε kc η h ζ Ό i η et that the inner surface (142, 242) extends beyond the area of the teeth (255, ^ 55) of the clamping part (ISO, 250). -24- "009846/0943 BATH ORIGINAL . ■ ■ ■ · · ■ ■ ". ■ 5 · Cable ties .according to one of the preceding claims, characterized -g, e indicate that the tip-to-S-pit-ztn distance of teeth (155 »255) is slightly less than is the tip-to-tip spacing of the teeth (115, 215). 6. Cable tie according to one of the preceding claims, thereby g. e k e η. η ζ e i c h η e t that the rear Wall "(131, 231) in the area of the entry surface (112, 212) is formed thicker, and that the clamping part (150, 250) in the thicker area of the rear wall (131, 2-31) is set. -. . 7. Cable tie -to one of the preceding Ansprüchb, characterized ge ke η η ζ e leans in that the head (120, 220) in the BC area of the front wall (141, 241) a channel for receiving the outer end (102, 202) of the band (1O1, 201) is on. ^. Cable tie according to one of the preceding claims, there- -lurch g ο ken η ζ c i η c- t, wet the back, v / andung (131, 23I) with a moving towards the anterior '/ ^ n-- -iung (141, 241) extended uridun advance (135, 235) spared is, and that ^ that located within ^ the opening (14-0) Clamping part; (150, 250) is pivotably attached to the d -.- m advance (135, 235). - · - / ■ 9 · Cable tie according to one of the preceding claims, characterized in that ge k t η · η ζ e i c h η et, d »ß the advance (135, 235) up to the S ^ itenv / andungen (121, 221) de.s Kopfos (12C, 220) reaches. 10, a method for producing the cable tie according to any one of the preceding claims, characterized ge ke η η ζ ei.ehre e. t that -, ■ '.': ' .-----. ■ _; ■ - BATH ORIGINAL -25- 009846 / 0943-, 194U89 a) with the help of zv / egg halves a complementary to the cable tie Shaped mold cavity is formed, the mold for the production of one or more teeth of the Has clamping part unterehnittene parts, and through the undercut parts formed planes with those formed for the formation of the other surfaces of the clamping part Planes converge on the side of the entrance surface, b) that then these two mold halves under training a mold cavity are closed, c) that a certain amount of organic plastic material is in the mold cavity is injected with the formation of a cable tie, d) that these mold halves in a direction perpendicular to the longitudinal axis the tape of the cable tie must be removed, e) and that the cable tie is then removed. 11. The method according to claim 10, dp by g e k e η η ze Ine t that the formation of the clamping part is used Surfaces of the mold halves on the exit side are pulled away from the molded clamping part, and that in the process the Klommteil is pivoted so that the teeth of the undercut parts are released. ^009846/0943 BADOR ₁ G ₁ NAL