JP3162283U - Shredder paper discharge device unidirectional drive mechanism - Google Patents

Abstract

A unidirectional drive mechanism of a shredder paper discharge device is provided. A unidirectional drive mechanism of a shredder discharge device includes a transmission gear set 30 provided between a cutter set 10 of a shredder and a paper feeding roll set 20, and a main gear of the transmission gear set is a cutter of a cutter set. The main gear 31 is fitted with the shaft 11 and an interference member is provided. When the cutter shaft of the shredder rotates in the direction of paper breaking, the interference member is coupled with the end of the cutter shaft to form a cooperative state. When the cutter shaft rotates in the paper retraction direction, it is separated from the cutter shaft end, and when the paper feeding roll set is in the paper retraction mode, the stationary stationary state is reliably maintained. [Selection] Figure 3

Description

  The present invention relates to a kind of shredder, and more particularly to a kind of unidirectional drive mechanism of a shredder discharge apparatus.

  Due to the difference in the paper breaking method, commercially available shredders are roughly divided into two types, one of which is a strip-type shredder, which cuts the paper into strips. Another type is a break-type shredder, which breaks paper into paper scraps.

  Although the above-described strip-type shredder machine head is generally used alone, the break-type shredder machine head is prescribed for use with a waste bin. The reason for this is that the lower part of the machine head of the breakable shredder has an open outlet, and when the machine head and the waste box are separated, the user accidentally extends his hand into the outlet and is injured by the cutter during operation. It is because there is a risk of doing. In order to prevent the occurrence of such a situation, the machine head of the existing breakable shredder is obliged to install a safety switch, and a convex block is installed on the waste box corresponding to the switch so that the machine head is scrapped. When assembled in a box, the convex mass presses the safety switch to bring the shredder into an energized state and to operate normally. On the contrary, when the machine head and the litter box are separated, the convex block is separated from the engagement position with the safety switch, and the safety switch automatically cuts off the power of the shredder and makes it inoperable. At this time, even if the user extends his hand into the exit slot, the user is not injured by the operating cutter.

  The machine head of an existing breakable shredder is specified for use in combination with a dedicated waste box and cannot be used alone. Therefore, the production and transportation cost of the existing breakable shredder cannot be further reduced.

  The above-described breakable shredder prevents an accident in which a user is injured by a cutter by accidentally inserting his / her hand into the exit slot. On the other hand, the shredder described in Patent Document 1 is provided with a paper drawing mechanism below the paper outlet, and the paper drawing mechanism is basically a set of paper feeding rolls that rotate with the cutter set. Using the shielding action that the paper feed roll forms on the paper exit, it prevents the user from coming into contact with the cutter set even if the user extends his hand to the paper exit, thereby achieving the effect of safety protection. . In addition, the paper scraps broken by the cutter set smoothly fall into the trash box by driving the paper feed roll.

China Patent Publication No. 200610052985.8 Specification

  However, in the above-mentioned drawing mechanism, when the shredder is in the paper break mode, the paper feeding roll that rotates with the cutter set achieves the purpose of shielding protection and discharging paper debris. The paper roll must be stationary and stationary, otherwise rolled up paper scraps or paper that has not been completely broken can cause jams and affect the normal operation of the shredder .

  In view of this problem, an object of the present invention is to provide a kind of unidirectional drive mechanism for a shredder paper discharge device.

  The unidirectional drive mechanism of the shredder paper discharge device of the present invention has a transmission gear set provided between the cutter set of the shredder and the paper feed roll set, and the main gear of the transmission gear set is fitted to the cutter shaft of the cutter set. The main gear is provided with an interference member, and when the cutter shaft of the shredder rotates in the paper breaking direction, the interference member is coupled with the cutter shaft end portion to exhibit a cooperative state, and the cutter shaft of the shredder is in the paper withdrawal direction. When rotating, the cutter shaft ends are separated.

  The unidirectional drive mechanism of the shredder paper discharge apparatus according to the present invention reliably maintains the stationary state when the paper feed roll set is in the paper withdrawal mode.

It is a three-dimensional external view of a machine head of a shredder to which the present invention is applied. It is an external appearance three-dimensional view of the paper feeding roll set in this invention. It is a structure side view of the unidirectional drive mechanism in this invention. It is a display figure in which the main gear in the present invention rotates with the cutter shaft. It is a display figure in which the main gear in the present invention does not rotate with the cutter shaft. It is a related position figure of the cutter set and paper feeding roll set in this invention.

  1 is a three-dimensional external view of a shredder machine head to which the present invention is applied, FIG. 2 is a three-dimensional external view of a paper feeding roll set in the present invention, and FIG. 6 is a relationship between a cutter set and a paper feeding roll set in the present invention. Please refer to the location map.

  The unidirectional drive mechanism of the shredder paper discharge device of the present invention includes a cutter set 10, a paper feed roll set 20, and a transmission gear set 30.

  The cutter set 10 is disposed at a paper slot of the machine head of the shredder and includes two cutter shafts 11. A cutter (not shown) of a predetermined type is disposed on each cutter shaft 11 to drive the motor 40. In response, the paper passing between the two cutter shafts 11 is cut.

  The paper feed roll set 20 is disposed at a paper exit opening portion of the machine head of the shredder, and includes at least two paper feed roll shafts 21. The two paper feed roll shafts 21 form a shielding action against the paper exit opening. , Prevent the user from getting injured by the cutter while driving by extending the hand into the exit slot.

  At the time of implementation, the paper feeding roll set 20 further includes two auxiliary roll shafts 22 on the outer sides of the two paper feeding roll shafts 21 to enhance the paper discharge effect.

  As shown in the drive mechanism structural diagram of FIG. 3, the transmission gear set 30 is used to constitute a transmission relationship between the cutter set 10 and the paper feeding roll set 20. The transmission gear set 30 includes a main gear 31 fixed to the other end of the cutter shaft 11 of the cutter set 10, driven gears 32 provided on the two paper feeding roll shafts 21 of the paper feeding roll set 20, and a main gear. 31 and at least one transmission gear 33 provided between the two driven gears 32.

  See also FIG. The transmission gear set 30 further includes at least one interference member 34 provided between the main gear 31 and the cutter shaft 11. One end of each interference member 34 is pivotally connected to the main gear 31, and the other end has a positioning pin 341. An elastic member 35 is provided at the upper end of the positioning pin 341, and the positioning pin 341 is normally biased in the direction of the cutter shaft 11. Further, the cutter shaft 11 is provided with an internal member having the same number of the concave holes 111 as the interference member 34 at the end. When the positioning pin 341 of the interference member 34 and the recess 111 of the internal member are in the fitted state, the main gear 31 rotates together with the cutter shaft 11.

  The so-called unidirectional drive mechanism is as shown in FIG. 4 and is directed in the direction in which the cutter shaft 11 and the positioning pin 341 of each interference member 34 oppose each other (that is, the paper breaking direction AUTO set on the cutter shaft). ) When rotating, the positioning pin 341 of each interference member 34 is engaged with the recess 111 of the internal member under the action of the elastic member 35, and the main gear 31 of the transmission gear set 30 rotates with the cutter shaft 11. Thus, the paper feeding roll set 20 is operated synchronously, and the broken paper waste is sent downward and collected in the trash box. Thus, the paper discharge effect is achieved.

  On the contrary, as shown in FIG. 5, when the cutter shaft 11 and the positioning pin 341 of each interference member 34 are oriented in the same direction (that is, the sheet retraction direction REV set to the cutter shaft) and rotated, the positioning of each interference member 34 is performed. The pin 341 and the recess 111 of the internal member are in a separated state. That is, the positioning pin 341 of the interference member 34 is pushed out from the recess 111 of the internal member that rotates in the paper withdrawal direction. That is, the main gear 31 of the transmission gear set 30 is not driven by the cutter shaft 11 and does not rotate accordingly. As a result, the paper feed roll set 20 is also stationary and presents a stationary state.

  With the above-described design of the present invention, the paper discharge device has a function of sending paper waste broken by the rotation of the cutter shaft to the trash box when the shredder is in the paper breaking mode (AUTO). On the other hand, when the shredder is in the retreat mode (REV), the paper discharge device does not rotate with the rotation of the cutter shaft, and exhibits a stationary and stationary state. This effectively prevents injury to the user's fingers.

  The technical contents and technical features of the present invention are as described above, but those skilled in the art can make various substitutions and modifications based on the description of the present invention without departing from the inventive spirit of the present invention. Accordingly, the scope of claims of the present invention is not limited to the above-described embodiments, and any substitutions and modifications that do not depart from the present invention belong to the scope of claims of the present invention.

10 Cutter Set 11 Cutter Shaft 111 Concave Port 20 Paper Feed Roll Set 21 Paper Feed Roll Shaft 22 Auxiliary Roll Shaft 30 Transmission Gear Set 31 Main Gear 32 Driven Gear 33 Transmission Gear 34 Interference Member 341 Positioning Pin 35 Elastic Member 40 Motor

Claims (6)

In the unidirectional drive mechanism of the shredder paper discharge device,
A cutter set with at least two cutter axes;
A paper feed roll set comprising at least two paper feed roll axes;
A main gear fitted to one cutter shaft of the cutter set, and a transmission gear set comprising driven gears respectively provided on two paper feed roll shafts of the paper feed roll set;
And the main gear is provided with at least one interference member, and when the cutter shaft of the shredder rotates in the direction of paper breaking, the interference member is coupled to the end of the cutter shaft, and the cutter of the shredder A unidirectional drive mechanism for a shredder discharge device, wherein the shaft is separated from a cutter shaft end when the shaft rotates in the paper retraction direction.   The unidirectional drive mechanism of the shredder paper discharge device according to claim 1, wherein at least one transmission gear is provided between the main gear and the two driven gears. Drive mechanism.   The unidirectional drive mechanism of the shredder discharge device according to claim 1, wherein one end of the interference member is pivotally connected to the main gear, the other end is provided with a positioning pin, and an elastic member is provided at the upper end of the positioning pin. A unidirectional drive mechanism for a shredder discharge device, wherein the positioning pin is urged in the direction of the cutter shaft in a state.   2. The shredder paper discharge device according to claim 1, wherein an inner member having the same number of recesses as the interference member is provided at an end of the cutter shaft. Unidirectional drive mechanism of the device.   The unidirectional drive mechanism of the shredder paper discharge device according to claim 1, wherein each of the cutter shaft and the positioning pin of each interference member rotates in a direction opposite to each other, i.e., a paper breaking direction set on the cutter shaft. A shredder discharge, wherein the positioning pin of the interference member is engaged with the recess of the internal member under the action of the elastic member, and the main gear of the transmission gear set is rotated along with the cutter shaft. Unidirectional drive mechanism of the device.   2. The unidirectional drive mechanism of a shredder paper discharge device according to claim 1, wherein when the cutter shaft and the positioning pin of each interference member rotate in the same direction, i.e., the paper retraction direction set on the cutter shaft, each interference A unidirectional drive mechanism for a shredder discharge device, wherein a positioning pin of a member is pushed out from a concave opening of an internal member to be in a separated state, and a main gear of the transmission gear set does not rotate in cooperation with a cutter shaft.

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