CN1081968A

CN1081968A - Stapler

Info

Publication number: CN1081968A
Application number: CN93108145A
Authority: CN
Inventors: 汉斯-沃纳·格罗沙
Original assignee: LEITZ LOUIS KG
Current assignee: LEITZ LOUIS KG
Priority date: 1992-07-04
Filing date: 1993-07-03
Publication date: 1994-02-16
Also published as: JPH07508468A; EP0649363A1; EP0649363B1; DE4222003A1; PL306854A1; ATE137430T1; DE59302462D1; TR27203A; WO1994001252A1; PL171098B1; IS4043A; ES2087747T3

Abstract

The present invention relates to a kind of stapler, it has a staple cartridge (22) to be ordered box (22) sidewall was led with the pin that holds its two sides, the one-tenth of arranging is pricked staple one by one, with one push away and order plate (28), lead on its guide rail (60) in nail box (22), it does the sheet member shape of imaging bending, pushes away the pinning of stapling together (41) that hits in the nail box under the effect of spring (26) with its two pin (44) parallel to each other and front edge (50).Even in order to guarantee that nail pushing plate is to make with thin-walled material, nail pushing plate bump staple leg can not block yet, the pin of nail pushing plate (44) has the transversely deforming (48) of a crank-like at least in the scope of its front edge (50).

Description

Stapler

The present invention relates to a kind of stapler, it has the staple box that can swing on base to be led with the pin that holds its two sides sidewall by the staple box, and the one-tenth of arranging is pricked staple and a nail pushing plate one by one, and it is led by guide rail in the nail box.It preferably is made of the thin plate of bending, with two parallel to each other, the front edge near the pin of nail box sidewall pushes away the pin that hits staple side in the nail box under the effect of spring, and by the mechanism that pulls back can contrary spring power and upwards rise.

In making by the top stapler of going into to follow closely, the staple in the nail box pushes away to nail box cephalad direction under the effect of spring by nail pushing plate, so nail box head often has a staple to be ready to be pressed the nail-plate extrusion.Refilling when nail, swing about 180 ° to the top board of stapler around the position of going into to follow closely that X is opened, driving nail pushing plate simultaneously and move at the thrust guide post against the power of spring.

The backhaul of nail pushing plate or realize by a tension spring or an arm-tie.In a kind of structure in back, nail pushing plate is provided with a stop lug, and it upwards exceeds the top edge that is contained in the staple in the nail box.There has been it just can accomplish when top board is opened, can have caught nail pushing plate, and left staple and rise by the arm-tie of nail box sidewall guiding.On the other hand, have a nail lid plate, it is used as the gland of stapling in the nail box.For outside as far as possible the bending place of the gland of staple, manufacture nail pushing plate and the stop edge that projects upwards thereof with relatively thinner wall near the stapling horizontal stripe.Because the task of nail pushing plate is that the pin of the staple of arranging is one by one pressed to nail box cephalad direction, a kind of danger can appear in the nail pushing plate that is formed by thin-walled, and promptly in the back of stapling pinning, the pin of nail pushing plate can block with staple.Can destroy the conveying of staple in the case, thereby make stapler malfunctioning.

From this point, task of the present invention is, a kind of stapler is provided, and can carry reliably even also can guarantee staple when error appears in size with the thin-walled ejector pin and when taking the preparation of staple into account.

For solving this task, the feature of claim 1 is proposed.Outstanding design of the present invention is seen relevant claim with other structure.

Solution of the present invention imagination is: the reliable backstop of nail pushing plate is played a decisive role, nail pushing plate is used for clashing into effective lateral dimension of the front edge of staple pin, with thin-walled material the time, can strengthen by transversely deforming.

In order to reach this purpose, the suggestion according to the present invention, the pin of nail pushing plate has a transversely deforming at least in its front edge scope.At the nail pushing plate that curves with light sheet material, transversely deforming can be stamped to form.Impression is towards the inboard of nail pushing plate pin, that is towards nail box inside.Depth of cup is equivalent to 0.5 to 2 times of material thickness and suits.Like this, effective lateral dimension of the front edge that nail pin backstop is played a decisive role is equivalent to 1.5 to 3 times of material thicknesses.

The profile that preferred design of the present invention is transversely deforming in the scope of front edge is arch or crank shape.It is long that its stretching, extension surpasses 1/3 to 2/3 pin.

Of the present invention another designs preferably and be: nail pushing plate is rendered as by the pin of plate spacing with the transverse slat institute that is connected bipod, be essentially the U-shaped external form, and have on the pin one by positive edge spacing towards the stretching out partly of frontal, it highly is equivalent to 1 to 5 times of material thickness.Impression preferably is stretched over and stretches out whole height partly.Impression has also played additional reinforcement effect like this.In principle, impression also is extensible to the most length of nail pushing plate or is stretched over whole length.

For going into nail by top, the stapler of pulling back with arm-tie at distance front edge certain distance, in the plane of pin, is provided with a top edge that exceeds pin and outstanding stop lug, the baffle plate to positive front that the tensile machine that it has a confession to make arm-tie is used.

Elaborate the present invention by the embodiment that represents with schematic diagram below.They are:

Fig. 1 by on go into nail, have the sectional view of the stapler that arm-tie pulls back;

Side view, end view and the vertical view of Fig. 2 a to c Fig. 1 stapler nail pushing plate.

Stapler shown in the figure is mainly by forming with lower member: one microscler has a chopping block 10 in its anterior scope, and the base 14 of a bearing 12 is arranged at its rear portion; The staple box 22 that on bearing 12, can center on the power swing of transverse axis 16 contrary springs; One is led by thrust guide post 24 in nail box 22, has spring 26 to support, to following closely the nail pushing plate 28 that box head 20 directions move; Also have one can swing about 180 ° with respect to nail pushing plate 22 and base 14 self-closing positions to the position of going into to follow closely of opening around transverse axis 16, drive nail pushing plate during swing and move, nail lid plate 31 and a top cover 34 that has the pressure nail-plate 32 that is fit to nail box head 20 of having spring 30 to support.One end of arm-tie 36 is hinged on the nail box plate 31 by a hinge, and the other end then moves in guide rail 40 guiding of nail box 22.Arm-tie 36 was held nail pushing plate 28 and is shifted to the terminal location that staple 41 rises against the power drive nail pushing plate of spring 26 when top cover 34 was opened.

As what see at Fig. 2 a to c, nail pushing plate 28 is generally U-shaped by the cross section, and the light sheet material of bending is made, and is curved the pin vertical with transverse slat 44 and forms with two by a transverse slat 42.Push away on the positive side of hitting the staple pin at it, nail pushing plate pin 44 has an extension 46, and it is equivalent to 1.5 times of material thicknesses highly approximately.The interior side-prominent impression 48 of pin 44 oriented pin in stretching out part 46 scopes, it is crank-like along front edge 50, and its effective cross sections size is compared with material thickness and is about one times.

Pin 44 has upwards outstanding stop lug 52 at distance front edge 50 1 segment distances, and it has towards the backstop limit 54 of front edge 50 and is used to block arm-tie 36.Also have, the scope of nail pushing plate transverse slat 42 make one decurved, have the guide plate 56 of circular hole 58, nail pushing plate 28 by it and on the round bar shape thrust guide post 24 in nail box 22 guiding move.

Summarize and get up to have following points: the present invention relates to a kind of stapler, it has a staple box 22 to hold the one-tenth of arranging one by one bundle staple and nail pushing plate 28 that sidewall was led that its two side legs is a nail box 22.Its institute on nail guide rail 40 in the box 22 leads, and it does the sheet member shape that imaging bends, and pushes away at the stapling pinning 41 in following closely box under the effect of spring 26 with the front edge of two pin parallel to each other 44 and hits.Even in order to guarantee to make nail pushing plate with thin-walled material, also can not block during nail pushing plate bump staple pin, the pin 44 of nail pushing plate 28 has the transversely deforming 48 of a crank-like at least in the scope of front edge 50.

Claims

1, stapler, it has the staple box (22) that can upward swing at base (14) serves as that the one-tenth of arranging one by one that nail box sidewall is led is pricked staple with the pin that holds its two sides, with a nail pushing plate (28), it leads to following closely on the interior guide rail (40) of box, it preferably makes the pieces of sheet of bending, parallel to each other with two, front edge (50) near the pin (44) of following closely box (22) sidewall, under the effect of spring (26), push away and hit the batter that becomes to prick staple (41) in the nail box (22), and by the mechanism that pulls back (36), can revolt the power of spring (26) and upwards rise, it is characterized in that: the pin (44) of nail pushing plate (28) has a transversely deforming (48) at least in the scope of its front edge (50).

2, according to the stapler of claim 1, it is characterized in that: transversely deforming is to use towards the inboard impression (48) of nail pushing plate pin (44) to make.

3, according to the stapler of claim 2, it is characterized in that: the degree of depth of impression (48) is equivalent to 0.5 to 2 times of material thickness.

4, according to the stapler of claim 1, it is characterized in that: the profile of transversely deforming in the scope of front edge (48) is arch or crank shape.

5,, it is characterized in that the stretching, extension of impression (48) in front edge (50) scope is long above 1/3 to 2/3 pin according to the stapler of claim 2.

6, according to the stapler of claim 1, it is characterized in that: the transverse slat (42) that nail pushing plate (28) connects together by pin (44) with pin (44) is spacing, the external form that mainly takes the shape of the letter U, and pin (44) has one by the spacing extension towards the front of front edge (50) (46).

7, according to the stapler of claim 6, it is characterized in that: the height that stretches out part (46) is equivalent to 1 to 5 times of nail pushing plate (28) material thickness.

8, according to the stapler of claim 6, it is characterized in that: the whole height of (46) stretches impression (48) stretching out partly.

9, according to the stapler of claim 2, it is characterized in that: impression (48) is in the whole length extending of nail pushing plate.

10, according to the stapler of claim 1, it is characterized in that: in the plane of pin, apart from front edge (50) one segment distances, the top edge that exceeds pin is arranged and outstanding stop lug (52), the backstop limit (54) that the tensile machine that it has a confession to make arm-tie (36) is used towards the front.