PLASTIC ROPE CONNECTOR

• US 3,591,215 A
• Filed: 08/06/1969
• Issued: 07/06/1971
• Est. Priority Date: 08/06/1969
• Status: Expired due to Term

• Current Assignee: John Maguire, Jonathan E. Sharp, Richard H. Frost
• Original Assignee: John Maguire, Jonathan E. Sharp, Richard H. Frost
• Inventors: Frost, Richard H., Maguire, John, Sharp, Jonathan E.
• Application Number:
  US04/847,884
• Time in Patent Office: 699 Days
• US Class Current: 403/396
• CPC Class Codes: B29C 45/14581 Coating the cross-over points of articles in the form of a network
• CPC Class Codes: B29C 65/70 by moulding using a particular moulding technique, see the relevant technique , e.g. by injection B29C45/14467
• CPC Class Codes: B29C 66/69 General aspects of joining filaments bundling articles B65B13/00; interconnecting successive lengths of material B65H69/00
• CPC Class Codes: B29C 66/71 characterised by the composition of the plastics material of the parts to be joined welding bar compositions B29C65/125
• CPC Class Codes: B29K 2023/12 PP, i.e. polypropylene
• CPC Class Codes: B29K 2077/00 Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
• CPC Class Codes: E04G 21/3261 Safety-nets; Safety mattresses; Arrangements on buildings for connecting safety-lines jumping-sheets, jumping-mattresses A62B1/22
• CPC Class Codes: E04G 21/3266 Safety nets
• CPC Class Codes: Y10T 403/7171 Two rods encompassed by single connector
• CPC Class Codes: Y10T 403/7194 Crossed rods

Abstract

This invention concerns a plastic, buttonlike connector for securing a pair of crossed ropes together and also, a method and mold for forming the connector upon a pair of crossed ropes by injection molding operations. The method of injection molding of a plastic connector about a pair of crossed ropes involves steps of holding the rope in position within a mold cavity while a plastic is being injected into the mold cavity. The construction of the mold cavity includes features to so restrain the ropes and also includes passageways to permit a pair of ropes to extend from the cavity, but with the passageways being closed by the ropes to prevent loss of plastic during the injection operation.

Claims

1. A rope connector for connecting a pair of crossed ropes, comprising:

a. a generally tubular sheath embracing each rope, with the ropes lying against each other and with center portions of the sheaths merging together at the center of the connector to form a crosslike unit; and

b. a reinforcement segment between each of the adjacent arm portions of the crossed sheaths, with such segments being disposed with respect to each other, to form a peripheral wall about the connector which merges into each sheath, with the ropes extending from this wall at the merged sheath ends.

2. In the connector defined in claim 1, wherein said sheaths and the ropes within them are opposingly offset within the reach of the sheaths to place the axis of each rope portion extending from the connector in a common plane, normal to the polar axis of the unit.

3. In the connector defined in claim 1, wherein the same is formed of a plastic having the general properties of polyethylene.

4. In the connector defined in claim 1 wherein said reinforcement segments are arcuate and form a ringlike flange merged with the ends of the sheath.

5. In the connector defined in claim 4, including fillets in the spaces between the crossing sheaths and the flange ring.

6. A rope connector for connecting a pair of crossed ropes formed of a synthetic resin plastic molded about the crossed ropes, and comprising:

a. A generally tubular sheath embracing each rope, with the ropes lying against each other and with the sheaths merging together at the center of the connector into a crosslike unit; and

b. A peripheral wall forming a ringlike flange about the connector merging into each end of each sheath, said rope portions extending from the surface of this wall.