CN2410040Y

CN2410040Y - Hand-operated paper crusher

Info

Publication number: CN2410040Y
Application number: CN 00202987
Authority: CN
Inventors: 李麦郎
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-01-26
Filing date: 2000-01-26
Publication date: 2000-12-13
Anticipated expiration: 2010-01-26

Abstract

The utility model discloses a hand-operated paper cutting machine, which is composed of an upper cover, a paper cutting barrel, a hand crank and a base. A paper cutting mechanism is composed of a standard cylindrical gear driven by the hand crank, a pair of blade shafts, a paper cutting blade forming a bowl shape, a spacer sleeve, etc. The utility model drives a pair of gears and a pair of blade shafts relatively rotated by controlling the hand crank, and thus, the paper cutting blade on the shaft can carry out cutting operation by a synchronous action. The utility model is suitable for families and office locations which require a lower utilization rate of the paper cutting machine, and replaces the electric drive paper cutting machine; thus, the utility model works under the condition electricity, and also works under the condition without electricity. The arrangement and the improved structure of the paper cutting blade causes the paper cutting effect good.

Description

Hand shredder

It is the shredder of power that the utility model relates to hand.

Shredder at present with electronic be majority, general all is relatively large using for office, collective of enterprises and institutions, it is power with the motor, two series cylinder cut-off knives on the driven gear group axle are the subtend rotation, and paper is chopped into strip by cut-off knife at interval, reach the purpose of shredded paper, this shredder is applicable to the place that needs frequent shredded paper, just can't use in case meet to have a power failure.Application number is that the blade for shredding paper of 94239256.6 " manually shredder " is the hackle mark structure, adopts plastic material, though cost reduces, the arrangement of blade for shredding paper and the blade cutting edge of zigzag structure all make the shredded paper effect undesirable.

The purpose of this utility model is to overcome the defective of prior art and for the not high place of shredded paper probability provides a kind of hand shredder that not influenced by power supply, the arrangement architecture that changes kneader bar is to improve the shredded paper effect.

The purpose of this utility model realizes by following technical proposal: this hand shredder, comprise loam cake and paper shredding barrel, be provided with the base that fixedly is the hollow frame structure with it in the loam cake, base is provided with the paper shredder that is driven by wind, this paper shredder comprises a pair of standard cylinder gear, with the parallel blade shaft in a pair of bearing that is bearing in the two end axles bearing that gear drive connects, axle is provided with by spacer and is divided into many group spacings blade for shredding paper identical and do the subtend rotation with axle mutually, it is characterized in that described blade for shredding paper is bowl-type, with two be one group of closing dorsad, every group of blade on two blade shafts mutually dislocation and adjacent edge kissing forms shearing edge.

The utility model is applicable to and uses not high family and the office space of shredded paper probability that with the electronic influence that just is not subjected to there is electric power or not of hand replacement, the arrangement architecture of blade for shredding paper and the improvement of blade structure improve this shredder shredded paper effect greatly.

Description of drawings.

Fig. 1 is the utility model contour structures schematic diagram.

Fig. 2 is the plan structure schematic diagram behind the dismounting loam cake.

Fig. 3 is the paper shredder profile.

Fig. 4 is the blade for shredding paper structure chart.

Fig. 5 is the left view of Fig. 4.

Fig. 6 is the A place partial enlarged drawing of Fig. 5.

Embodiment to the utility model is described in detail again below in conjunction with above-mentioned accompanying drawing:

Shown in Fig. 1-6, hand shredder is seen loam cake (1), paper shredding barrel (3), the wind (4) of injection molding from contour structures, the loam cake upper surface is provided with hand steered vibration-proof structure (2) on the opposite of wind, this structure can be to lay two inner concaves in front and back or the concavo-convex list structure or the gridiron of finger.Be provided with 4 or 6 rubber cushions (5) that height is consistent at the bottom of the paper shredding barrel.

Remove loam cake, a base that is the hollow frame structure (7) that is connected with the loam cake screw is arranged, base is provided with the paper shredder that is driven by wind (4), paper shredder comprises a pair of standard cylinder gear (10), the blade shaft (11) a pair of parallel to each other that is connected with gear drive is bearing in the bearing of base two end axles bearing (6), a pair of blade shaft is a hex-shaped shaft, a pair of gear (10) with hexagon ring is sleeved on blade shaft one end, and a blade shaft stretches out and the mutual suit of wind.

Blade shaft is provided with by plastic spacer (9) and is divided into many group spacings blade for shredding paper (8) identical and do the subtend rotation with axle mutually, this blade for shredding paper is by the metallic plate punch forming of thickness 0.5-1mm, be bowl shaped structure, endoporus is a hexagon ring, match with blade shaft, and with two be one group dorsad closing be arranged in axle and go up form uniform gap, every group of blade on two blade shafts dislocation and adjacent edge kissing mutually forms shearing edge.

The rim of a bowl of blade for shredding paper has an annular flat surface, and its excircle punching out becomes arc toothed (12) of tooth depth a=0.25-0.45mm, tooth pitch b=0.9-1mm, and the cutter tooth cutting edge has the keen edge of α=15 °-45 ° of chamferings.

During use, the paper that will pulverize inserts from paper inlet earlier, the manual control wind, transmission of power is given two blade shafts, another hand steered firmly vibration-proof structure place, paper promptly reaches paper and pulverizes purpose along with the strip paper tape is swallowed and cut into to the rotation of wind by the blade for shredding paper of subtend rotation on the axle.

Claims

1. hand shredder, comprise loam cake (1) and paper shredding barrel (3), be provided with the base (7) that fixedly is the hollow frame structure with it in the loam cake, base is provided with the paper shredder that is driven by wind (4), this paper shredder comprises a pair of standard cylinder gear (10), with the parallel blade shaft (11) in a pair of bearing that is bearing in two end axles bearing (6) that gear drive connects, axle is provided with by spacer (9) and is divided into many group spacings blade for shredding paper (8) identical and do the subtend rotation with axle mutually, it is characterized in that described blade for shredding paper is bowl-type, with two be one group of closing dorsad, every group of blade on two blade shafts mutually dislocation and adjacent edge kissing forms shearing edge.

2. hand shredder as claimed in claim 1, the excircle that it is characterized in that described blade for shredding paper (8) are that tooth depth a is that 0.25-0.45mm, tooth pitch b are arc toothed (12) of 0.9-1mm.

3. hand shredder as claimed in claim 1 or 2 is characterized in that the edge α of described blade for shredding paper (8) is 15 ° of-45 ° of chamferings.

4. hand shredder as claimed in claim 1 is characterized in that described loam cake (1) is provided with hand steered vibration-proof structure (2).

5. hand shredder as claimed in claim 1 is characterized in that described paper shredding barrel (3) end is provided with rubber cushion (5).