Roller chain assembling and disassembling device

A device for removing pins from a roller chain, comprising:

• a block having a channel;
• a removable cradle-insert positioned within said channel, said cradle-insert having a cradle for holding a roller chain during operation of the device;
• a bore extending from an exterior surface of said block to said channel;
• a second bore extending from said exterior surface of said block to said channel;
• a first reciprocating means carried in said bore operable for positively forcing a first pin from a roller chain being held by said cradle;
• a second reciprocating means, independent of said first reciprocating means, carried in said second bore operable for positively forcing a second pin, having a different size pin than that of said first pin, from a roller chain being held by said cradle;
• and
• an opening in said block to facilitate removal of a pin being forced from a roller chain being held by said cradle.

A device for removing pins from a roller chain, comprising:

• a block;
• a cradle formed in said block for holding a roller chain during operation of the device;
• a first bore extending from an exterior surface of said block to said cradle;
• a second bore extending from an exterior surface of said block to said cradle;
• a first reciprocating means carried in said first bore operable for positively forcing a pin from a roller chain being held by said cradle;
• a second reciprocating means carried in said second bore operable for positively forcing a pin into a roller chain being held by said cradle;
• a first opening in said block to facilitate removal of a pin being forced from a roller chain being held by said cradle;
• a second opening in said block to interpose a pin between a roller chain being held by said cradle and said second reciprocating means;
• and
• a groove in said second bore for aligning a pin placed on said groove with a pin opening of a roller chain held by said cradle.

A method for removing a pin and inserting a pin into a roller chain, comprising:

• providing a device for removing a pin from a roller chain, said device comprising a base having a first bore, a second bore, a cradle having at least six teeth for holding a roller chain during operation, a first reciprocating means for positively forcing a pin from a roller chain being held by said cradle, a second reciprocating means for positively forcing a pin into a roller chain being held by said cradle, a first opening to facilitate removal of a pin being forced from a roller chain being held by said cradle, a second opening to interpose a pin between a roller chain being held by said cradle and said second reciprocating means, and a groove for aligning a pin with a pin opening of a roller chain held by said cradle;
• providing a roller chain requiring the removal of a pin;
• placing the first and second reciprocating means of said device so that no portion of said first and said second reciprocating means extends into said cradle;
• placing said roller chain into the cradle of said device so that the roller from which a pin is to be removed is held between a second tooth and a third tooth of said device;
• moving said first reciprocating means toward said cradle;
• forcing a pin in the roller chain completely from the roller chain with said first reciprocating means;
• placing a roller chain into said cradle with the pin opening within the roller chain in alignment with the second bore;
• inserting a pin completely into said second opening and on said groove, said groove aligning the pin with the pin opening of the chain;
• forcing the pin completely into the pin opening of the roller chain by moving said second reciprocating means;
• and
• removing the roller chain from said cradle in which a pin has been inserted.