GB2240601A - Band gun - Google Patents

Abstract

A band gun comprises, in the channel at the front of the gun casing, a slide block 4 in which a blade 7 is located, a rod 44 extending rearwardly from the block normally pivoting a toothed trigger member 35, against a spring 34, out of engagement with the serrated underside of the surplus band 101. Actuation of the handle 31 causes ratchet-type feed of the band rearwards by the member 35, a toothed member 8 preventing its return, until the band is taut about the wires 9 and the band head 10 abuts the slide block 4. Further triggering action causes the head to push the block rearwards, raising a ball 72 from a seat 111 in the casing which moves the blade 7 through a cutting stroke. Springs 71, 6 return the parts on final release of the trigger. <IMAGE>

Description

BAND GUN BACKGROUND OF THE INVENTION: The invention relates to a type of band gun in new design, comprising of a sliding block in the channel at the front of the gun casing, in which is a flexible cutting device, at its rear end is the extension of an extending rod to insert in the trigger inside the gun, to pull the trigger and produce up and down movement to cause single-way pulling of the band, and by means of the check card between the trigger and sliding block with one-way gear to prevent sliding back of band, when the band is gradually tightened by the trigger and the sliding block cause it to slide, so the cutter in the cutting unit moves upwards to cut the band, meanwhile, the trigger is restored to its former position by the spring and moves the extending rod to make the sliding block to return to its former place, to achieve the practical purposes of rapid tightening, cutting and convenient operation.

As is known, for electrical control box containing electrical wires, computer network lines, exposed cables or warehouse or spare wires and cables, generally the wires and cables are unwinded and then bounded to look neat. In the past, people would adopt a winding rope or effective protective wire or cable to tie the band that could become loose, the former applies to household use electrical wires, and the latter applies to the storage of materials factory or workshop delivery and arrangement and storage of wires or cables. As far as use aspects and practical purposes are concerned, the latter indeed has the capability of effective binding and are more widely used by people.

For the outside construction of the band, one end is framed head end, the other is extension of one-way gear long strip, in use the band ring is wound on the wire or cable, then the frame head end is pulled from the hollow of the frame head end, when the trigger piece inside the frame head end, and the gear thread of the trigger long strip, so there is no worry that the excessive part of band is returned, so as to gradually tighten the remainder and tighten the wire or cable, but after it is tightened, the excessive band must be cut off to maintain good appearance, generally, directly use the clamp to directly cut it, or use a special type of cutting gun, in which, at the front of the gun is a gate with upper and lower cutters, using its retractible trigger and manual pulling to tighten the remainder band, then turn the gun and cut the remaining band, for such cutting gun, the remainder band is pulled inwards manually to the gun body, and when cutting, the gun body must be rotated to achieve the cutting of remainder band by upper and lower cutters. Therefore, the operation is restricted by space and other factors, and not easily controlled.

For this, the inventor has, in view of such inconveniences and trouble in conventional use, actively researched a type of easy operating, quick cutting device suitable to remaining band of various thickness and specifications, and have studied intensively, designed and assembled, based on several years' of experiences and research and development results, and have finally developed the subject invention of a type of new design of ban gun.

Therefore, the main purpose of this invention is to, with a sliding block fitted in the channel at the front of the gun shape, in which is a flexible cutting device, its rear is the extension rod to insert into the gun body in a trigger device to pulling process the trigger board is pulled up and pull down the produce single-way pulling the band, and with the one-way gear between the trigger and the sliding block when the band is gradually tightened by the trigger of the subject invention and the band head sliding block cause it to slide and then the cutter rises to cut the band, at this stage the trigger is replaced because of spring's resiliency, and move the extension rod to replace the sliding block to achieve the purpose of easy operation, quick cutting, to improve such defects in conventional technology as the remaining band's thickness restrictions and must be pulled manually to prevent return sliding of the band.

SUMMARY OF THE INVENTION This invention relates to a new composition of a band gun, particularly to one with single-way pulling mechanism, check piece and cutting assembly band gun, comprising of a sliding block in the cutting assembly at the front of the gun, in the hollow of the gun is a check piece with pressing spring, in the main compartment is a spring to press the trigger which front end is a trigger board with spring resiliency, with the single-way pulling device of this invention to rapidly tighten the band, and during the tightening process, with the band head pressing sliding block to move the sliding block so the cutters rise and cut the remainder band to achieve the cutting of band with easy operation and quick binding and cutting.

BRIEF DESCRIPTION OF THE DRAWINGS Fig 1 is the perspective view of the invention.

Fig 2 is the exploded view of the invention.

Fig 2-1 is the selectional view of the sliding block.

Fig 3 is the embodiment view of the trigger.

Fig 4 is the embodiment section view of trigger.

Fig 5 is the embodiment section view of cutting mechanism.

DETAILED DESCRIPTION OF THE PRESENT INVENTION This invention relates to the presentation of a new composition of a band gun to manufacturing industry, all trades or household purposes of binding electrical wires, electrical cables, tubes wires, etc., providing a practical band gun composition with rapid tightening and easy cutting operation.

The invention's construction and functions and theories are described along with the drawings and better embodiment examples to enable better understanding of the invention. Referring to Fig 1 and 2, the perspective view and exploded view of the subject invention, this invention is mainly a gun body appearance, the gun is composed of its inner compartment (11), middle compartment (84) and main inner compartment (12)'s casing main unit (1), the main inner compartment (12) can enable the inner sliding of trigger (3), the front inner compartment (11) will enable the sliding of sliding block (4), in the sliding block (4) is a flexible cutting mechanism, the middle compartment (84) has a flexible check piece (8), then the gun casing cover (2) is tightened on the casing main unit (1) by screw (9), as shown in Fig 1, the gun casing main unit (1) at the gun top position is a long channel shaped band return window (13), when assembled with the upper edge diagonal piece (21) of gun casing cover (2), it will enable the sliding out of remainder band from the return band window (13), the inner compartment of the gun casing main unit (1) is two insulating boards (14) (16) to partition into front inner compartment (11), middle compartment (84) and main inner compartment (12), at the center of the two partition boards (14) (16) are respectively a hole (14) (16), at the end of the main inner compartment (12) is a fixing box (151)'s spring fixing seat (15), at the base of front inner compartment (11) is a steel ball hole (111), in the middle compartment (84) is two spring (83) pressing with its top with gear (81) central position is long oval hole (82)'s check piece (8) at which appropriate place is a diagonal angle (8'), in the inner compartment (12) is a trigger unit (3) comprising mainly of a front pulling device and resilient construction and handle (31), at the front of the trigger (3) is an opening (321), and a slightly inclined channel (32), on which inclined wall is a cam shaft (351) with trigger board (35), which two cam shafts (351) are respectively fitted with the channel (32) and cover board (36) 's hole (361), and combined with the cover board (36) and channel (32), in which the trigger board (35) has inclined surface against the spring (34), as shown in Fig 4; on the trigger unit (3) is a crosswise trough (37) with a fixing key (38) to enable spring (6) end pressing inside it, the other end is pressed in the fixing seat (15) of the spring, so the trigger unit (3) can cause the pulling and sliding movement with the spring (6) resiliency, and on the base of the sliding block (4) is a channel (411)((412) in which is deep hole (41) in which is a set of cutting unit, including a "g" shaped cutter (7), on which is a spring (71), lower arch opening is pressed against a steel ball (72), on two sides of cutter (7) are respectively along the conductor channels (411) (412), to restrict its up and down sliding movement, on the rear of the sliding block (4) is an extruding rod (44), inserting through the partition board (14)'s hole (141), check piece (8)'s long oval hole (82) and another partition board (16)'s hole (1661), and against the trigger board (35), so that it is inclined; Besides, the cutter unit's steel ball (72) in the sliding block (4) is placed inside the front inner compartment (11), so the steel ball (72) is jammed into the steel ball hole (111).

Referring to Fig. 3, Fig. 4 and Fig. 5 which are the embodiment section views of the trigger, embodiment section view of the trigger, and embodiment section view of the cutting mechanism, in which Fig. 3 and Fig. 4, when the band ring is on the electrical wire or cable (9), the band remaining band (101) by the pulling of the trigger (3), when the trigger board (35) leaves the extending rod (44), by the spring (34) resiliency and swings upwards and catches the remaining band (10)'s gear thread and pulled backwards, when each trigger unit (3) shrinks, the trigger board (35) is pressed by the extension rod (44) and depress the spring (34) and recovers the next preparation position, so the pulling device produces a single-way pulling, when the trigger unit (3) is pulled backwards, the trigger board (35) again spring up and insert into the gear thread and pull the remaining band (10) backward, and with the pressing of the spring (83), the top catching teeth (81)'s check piece (8) is catched onto the thread of the remaining band (101), to prevent the sliding back of the remaining band (101), this device saves the conventional procedure manual pulling, Fig 5, when the tightening band is the pulling device and gradually pulling tight, the band head (10) will press against the sliding block (4) and move inwards, then, because the steel ball 972) is pushed and move away from the steel ball hole (111) and elevate, and push the cutter (7) up and cut the remaining band (101), finally when the remaining band (101) is cut, the trigger unit (3) moves back rapidly, meanwhile, the trigger board (3)'s catching board (35) the other surface impact the extending rod (44), so the sliding block moves forward, and the steel ball (72) restores its position in the steel ball hole (111), (as in Fig 3)

Claims (3)

1. CLAIM 1. A type of band gun, comprising mainly of a trigger unit in the main inner compartment of gun casing main unit, the trigger unit can slide to and fro, at the front inner compartment of the gun casing main unit is a sliding block, between the front inner compartment and the main inner compartment is a middle compartment, in which is a check piece, finally a gun casing cover is fixed onto the casing main unit by a screw into one unit.The features include: In the main inner compartment of the casing main unit it a spring fixing seat with a fixing key, on the gun top is a narrow and long band return window, at the base of the front inner compartment is a steel ball hole, on the partition board in the main inner compartment and the middle compartment and the front inner compartment are holes, in the body of the trigger unit is a cross trough with a fixing key to accommodate a spring at one end, the other end is spring fixing seat, at the front of the trigger unit is an opening, at the base of the sliding block is a deep hole, corresponding to the deep hole's two sides are channels, in the deep hole is a cutting unit, including a cutter, on the cutter is a spring, at the base of the cutter arc is a steel ball, on two sides of cutter are respectively channels, on back of sliding block is an extending rod, at the top of check piece is a catching gear, in its center is a long oval hole, at two sides of base are holes to accommodate spring, on outside of base is inclined angle to enable the sliding in of band.
2. 2. As described in Item 1, in which the extending rod of the sliding block are corresponding to the holes on the partition board, the long oval holes of the check piece and the opening of the pulling device can be inserted.
3. 3. As described in Item 1, in which, on the gun casing cover protruding is an inclined piece.