Brother KE-484C manual

Electronic lockstitch pattern tacker with treble hook

KE-484C

•Knife method cuts even extra thick threads accurately.

•Pneumatic drive wipes the thread smoothly.

•Stable thread tension release improves sewing performance.

•Stitch patterns can be changed easily.

This electronic pattern tacker is ideal for sewing heavy and extra-heavy materials such as seatbelts. It gives excellent economy, with shorter cycle times and easier maintenance.

Attractive and accurate sewing finishes for extra-heavy materials

A variety of thread types up to #0 can be cut accurately.

•A knife method is used for thread trimming. When the knives are

meshing, the movable knife and fixed knife are driven by a pneumatic cylinder. Extra thick threads of up to #0 can be cut accurately regardless of the material of the thread.

•The speed of the knife is controlled by a pneumatic cylinder which reduces excessive spinning of the bobbin during thread trimming. The thread is held securely from the start of sewing so that stable seams are created.

•Unlike the heat cutting method, the knife method does not require a heater to be warmed up, so it reduces cycle time. It also saves electricity costs and makes temperature control unnecessary. In addition, the knives are much more durable than the heater wires, so that the knives can accurately cut a greater variety of threads. They are also easier to maintain.

•The thread wiper is also driven by a pneumatic cylinder. The upper thread can be wiped accurately even under conditions where the thread is difficult to pull out of the material.

Optimized thread tightening creates attractive sewing finishes.

A pneumatically-driven thread tension release mechanism has been adopted. Compared to cam-type methods, this mechanism provides much stronger thread tension. In addition, the thread tension discs open and close accurately even when high tensions are applied to the upper thread, so that the upper thread trailing length is kept at a constant length and problems at the sewing start are prevented. Stable and accurate thread tightening is provided even under high load conditions, so that good thread tightening can be obtained even when sewing through several layers of material, thereby increasing the range of sewing applications. Plus, a new thread take-up mechanism ensures that the thread tightening is optimum for the material being sewn.