CN1072126A - The card punch that punching unit is adjustable (2) - Google Patents

Abstract

The present invention relates to a kind of card punch, it has a punching base (10), the punching unit (20) that at least two phase mutual edge distances are adjustable and one can go up the pressing plate (18) that swing or guiding move at base (10), are used for eyelet punch (56) in the mobile punching unit (20).The means of safety and precise are adjusted the punching distance that occupies the majority in actual applications in order to use simple, an insertion length that extends to card punch is arranged on base, the groove (22) that rim openings is arranged above, being equipped with one therein can be around the scale bar (24) of its longitudinal axis rotation, it is carved with and a plurality ofly shows up in different turned positions, the rule (24 ') that can see by rim openings.The suitable round bar shape of making of scale bar (24) profile, it can be positioned base (10) in predetermined turned position.

Description

The card punch that punching unit is adjustable (2)

The present invention relates to a kind of card punch, it has one can be placed on a base on the table top, have at least two on base, arrange, the phase mutual edge distance is adjustable, a punching counterdie, a punching unit of going into a paper crack and an eyelet punch are respectively arranged, can on base, swing or lead and move, be preferably made the pressure mechanism of pressing plate for one, in order to mobile eyelet punch, also has a scale, in order to adjust the punching distance between punching unit in the base insertion length that stretches of going into front, paper crack of punching unit.

The porous card punch that this type punching unit is adjustable normally is equipped with fixing or removable scale, and exhausted major part is with millimeter or inch lattice.Be contained in the file or with the paper of circle type loose-leaf notebook clamping concerning various, the distance between punching unit must rely on it calculate.If the distance of dissimilar circle type loose-leaf notebook clamping paper is directly provided on scale, that just can be simple many.Because in fact the circle type loose-leaf notebook of many various punching distances inequality is arranged, general traditional porous card punch owing to require mark clearly reason be not can accomplish easily.And on the other hand, the replacing time that the way with changing scale that had proposed can cause trouble, and those temporary transient no scales also might be lost.

From this point, task of the present invention is: the porous card punch to aforesaid way improves, and makes various differences between punching unit, and the punching distance makes to adjust to become simple by at a glance groove being positioned in the different given locating slots.The present invention's imagination is: make the porous card punch of aforementioned type can be used for many different punching distances, and have such advantage: used here scale is directly to be placed on the card punch, and scale comes into plain view, and can not lose.In order to reach this purpose, the present invention proposes going into to be provided with in the scope of the place ahead, paper crack one and extending to base and insert the longitudinal opening groove that seam length, rim openings make progress of on base punching unit, and in this open slot, place a scale bar that can rotate around its longitudinal axis, it is carved with the scale that a plurality ofly upwards shows in different turned positions, can see by rim openings.

According to a design preferably of the present invention, the various scales on the scale bar always make progress, and stretch out in the rim openings of base, and can locate and be locked on the given turned position of base.The profile of scale bar preferably is round bar shape, but also can make polygon bar or flat rod.

Another outstanding design of the present invention is: have at the two ends of scale bar is that be made of one, concentric with axle and support axle journal that stretch out as far as possible, and it is clamped in the axle journal installing hole that is connected with base, can not rotate.Suitable simultaneously at least one axle journal installing hole is made removably is fixed tightly on the base, preferably can the locating journal cover.Between at least one axle journal installing hole and scale bar, preferably be provided with spring-supported keeper to come scale bar is locked on the predetermined turned position.For this purpose, can on neck bush preferably made of plastic, make a spring tongue piece that crooked elastic force is arranged, a locating convex block that can engage diametrically with the circumferential locating hole of scale bar is arranged above it.Though dimensional tolerance is arranged, reliable in order to guarantee the location, locating slot is preferably made on the length of scale bar is axial and is stretched.

Another kind of selection scheme is: keeper can be made up of the locating hole of a location pearl and some.The location pearl is arranged in the axle journal installing hole, preferably in the neck bush prejudicially with the axle open parallel in, have spring to support below.Locating slot circumferentially at scale bar on the end face of relevant axle journal installing hole, with the location pearl radius be distance.

For scale bar is rotated easily, a support axle journal by relevant axle journal installing hole, preferably is locked by neck bush, and loads onto one and the binding of scale bar anti-rotation in its part of stretching out the axle journal installing hole, preferably bonding swivel head, doing like this is handled easily.

Because manufacturing technology, scale bar is suitable longitudinally to be separated, symmetrically by two, and coincide mutually and bonding half-round bar is formed, and the suitable moulding of making identical appearance with plastics of half garden bar.

Because even the punching distance equates, paper size may have nothing in common with each other, so on base, additionally be provided with one parallel with scale bar, can vertically move, and the retaining paper slip that can locate in variant shift position, it has a block of vertically giving prominence on base, to block the edge of the paper that will punch.It is favourable doing like this.

The configuration example that to represent with schematic diagram comes that the present invention will be described in detail below.They are:

Fig. 1: with schematic diagram represent have rotatable scale bar and the retaining paper slip porous card punch front view

Fig. 2: the porous card punch rearview of representing with the schematic diagram of partly cut-away

Fig. 2 a: the vertical cross-section diagram of a punching unit

Fig. 3: the scale bar figure that neck bush and rotary head are arranged that represents with the signal exploded view according to Fig. 1

Fig. 4: the schematic diagram of scale bar two halves

The card punch of porous shown in the figure can be placed in a base 10 on the table top by one in fact, sidewall 12 that is placed in base 10, can be around 14 swings of a trunnion axis, the pressing plate 18 of a handgrip 16 is arranged, a plurality ofly be arranged on the base 10, mutually between 20, one of adjustable punching units of distance scale bar 24 and a retaining paper slip 30 that in the side notch 26 of base 10, is along the longitudinal movement, has a retaining paper piece 28 of rotating around its longitudinal axis in can the opening 22 that stretches along its length on base 10.

Punching unit 20 has a four-sided openings 32, it can move on the square mounting rod of being made by Fibreglass Reinforced Plastics 34, and each is fixed in the optional position of square mounting rod 34 with a dog screw 36, square mounting rod 34 is formed an assembly with punching unit 20 fixed thereon in this way, and it can be used as integral body and puts into the card punch base or take out from base.In order to reach this purpose, on the card punch base, make a grip slipper 38 with misaligning, it have one upwards open and the opening 40 of break-through to hold square mounting rod 34 and one and opening 40 interlocks, can tighten the dog screw 42 of square mounting rod.Each single punching unit 20 has one to go into paper crack 44 for what the punching paper was used in its underpart, punching counterdie 46 and one made spiral compression spring 48 action of reset spring, have a snap ring 50, head on that end stop 52 is laid, terminal 54 eyelet punch 56 that face is given prominence on punching unit 20 on it, eyelet punch 56 can be by pressing down pressing plate 18, with dress depression bar 66 thereon, power against back-moving spring 48, by going into paper crack 44 and punching counterdie 46, beat to the following punching process of finishing.

In grip slipper 38 scopes, on base 10, also done a bearing 58, it has a pilot hole of vertically putting, for push rod 62 usefulness that withstand on the depression bar 66 on the pressing plate 18 under support spring 60 effects.With spring-supported push rod 62 is when making in the above terminal location of increased pressure board 18 and the rear end face 54 of eyelet punch 56 that heads on its end stop 52 is formed the free space 64 between eyelet punch 54 and pressing plate 66.Like this, punching unit just can not have easily to adjust mutual distance under the situation of pressure on base.In addition, can also unclamp dog screw 42 backs splits out the assembly of being made up of square mounting rod 34 and punching unit 20 or the base of packing into from base with a turn-knob.

Particularly seen in Fig. 3, scale bar 24 profiles are round bars, respectively stretch out a support axle journal 68,70 concentric with axle at its two ends.Round bar and its support axle journal 68,70 suitable plastics that adopt and make two half-round bar 25(Fig. 4 that longitudinally separate with injection moulding), their mutually engaging and (or) be bonded a complete round bar.Put a neck bush 72 made from plastic injection piece before scale bar 24 is installed on its long support axle journal 70, and fix with a swivel head 74 at end face, the most handy Method for bonding is fixed, and makes it to rotate on axle journal, and prevents to drop.Put into the notch 22 that base 10 top edges have opening then with the scale bar 24 that this method installs, it supports 68 of axle journals to insert in the installing hole 76.After this, neck bush 72 by its location tongue piece 78 in the locating slot of a base not shown in the figures 10, make it and can not rotate.In addition, also done a spring tongue piece 80, but the locating convex block 84 of the snap-in location of a radial inward setting at scale bar 24 locating slots 82 arranged in its terminal at neck bush 72.Like this, scale bar 24 is just braked by base 10 at the position of rotation of each predetermined scale 24 with regulation ' demonstration up.

Summary is got up, now point out following points: the present invention relates to a kind of card punch, it has a card punch base 10, has two punching unit 20 and the eyelet punch 56 of mobile pressing plate 18 with mobile punching unit 20 of can swinging on base 10 or lead that its phase mutual edge distance is adjustable at least.For can be with simple and means safety and precise are adjusted punching distances maximum in the practical application, at base 10 an insertion length that extends beyond card punch is set, towards upper shed, the opening 22 that stretches along its length, being equipped with one therein can be around the scale bar 24 of its longitudinal axis rotation, and the scale 24 that a plurality ofly shows up in different turned positions, can see by rim openings is arranged on the scale bar.The profile of scale bar 24 has the suitable round bar shape of making, and it can be positioned at above the base 10 in predetermined turned position.

Claims (15)

1. A hole puncher, which has a base (10) that can be placed on a table, at least two of which are adjustable in distance from each other on the base (10), and each has a punching lower mold (46), A punching part (20) of a paper gap (44) and a punching punch (56), a pressure mechanism (18) that can swing or guide to move on the base (10), preferably made into a pressing plate, uses To move the punch (56), there is also a scale (24) in front of the paper slot (44) of the punching part (20) that extends to the insertion length of the base (10) to adjust the punching The punching distance between the parts (20) is characterized in that: in the range in front of the base (10) into the paper gap (44), there is an opening (22) extending to the insertion length, opening upward, and extending along the length direction, There is a scale bar (24) that can rotate around the longitudinal axis in the opening, and it has a plurality of upwardly displayed scales (24) that can be seen through the edge opening at different rotational positions. 2. A hole punch according to claim 1, characterized in that it has a scale rod (24) always facing upwards to display the scale (24') protruding from the edge of the opening. 3. A hole punch according to claim 1, characterized in that the scale rod (24) can be positioned and locked at a given rotational position of the base (10). 4. The hole punch according to claim 1, characterized in that: the scale rod (24) is in the shape of a round rod. 5. The hole punch according to claim 1, characterized in that: the scale rod (24) is shaped like a polygonal rod or a flat rod. 6. The hole punch according to claim 1, characterized in that: there are supporting journals (68, 70) protruding concentrically with the shaft on both sides of the scale rod (24). They are clamped in non-rotatable journal mounting holes (72, 76) attached to the base (10). 7. The hole punch according to claim 6, characterized in that at least one journal mounting hole is made to be detachably fastened to the base (10), preferably a positionable journal sleeve (72). 8. The hole punch according to claim 6, characterized in that: between at least one journal mounting hole (72) and the scale rod (24), there are spring-supported positioning members to lock the scale rod (24) in at the predetermined rotational position. 9. According to the puncher according to claim 7, it is characterized in that: a spring tongue (80) with curved elastic force is formed on the journal sleeve (72) preferably made of plastic, and it has a The positioning holes (82) distributed on the circumference of the scale rod (24) can engage the positioning protrusions (84) in the radial direction. 10. A hole punch according to claim 9, characterized in that the positioning groove (82) extends axially along the length of the scale rod (24). 11. The hole punch according to claim 8, wherein the positioning member is composed of a positioning bead and a certain number of positioning grooves. Locating beads are arranged in the journal mounting hole, preferably in the opening parallel to the shaft eccentrically in the journal sleeve (72), with a spring support below. The positioning grooves are distributed on the end face of the scale rod (24) towards the relevant journal installation hole along the circumference, and the distance is the radius distance of the positioning beads. 12. The hole punch according to claim 7, characterized in that: one of the supporting journals (70) is passed through the relevant journal installation hole, preferably a journal sleeve (72), and is stretched out of the shaft The part of the neck mounting hole has a anti-rotation link with the scale rod (24), preferably a gluing rotary head (74). 13. The hole punch according to claim 1, characterized in that: the scale rod (24) is composed of two semicircular rods (25) which are separated longitudinally, symmetrical to each other, and can be fitted and bonded to each other. 14. A hole punch according to claim 13, characterized in that the semicircular rod (25) is preferably made of a plastic injection molded part of the same shape. 15. The hole punch according to claim 1, characterized in that: on the bottom plate (10), there is a paper stop strip that is parallel to the scale rod (24), can move along the length direction, and can be positioned at different moving positions (30), it has the stopper that protrudes at base (10), to block the edge that will punch paper.

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