JP2005177619A - Shredder device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To control the rotation of wheels when an operation for pushing a pulling tool for movement to accommodate is performed. <P>SOLUTION: A shredder device is provided with at least a pair of wheels 2 and 2 in its bottom part 40 and a pulling tool 1 for movement provided with a pair of rods 10 and 10 extending in upward and downward directions and a handle part 11 extending from the upper part of one of the rods 10 and 10 to the upper part of the other rod capable of the up-and-down movement of the rod 10 in the pulling tool 1 for movement. The axle 20 of the wheel 2 is provided with a gear-like body 21. An elastic stopper chip 3 which keeps one end fixed and the other end free 30 and is provided, between the both ends, with an engaging projection part 31 which gets in between the teeth of the gear-like body 21 from above, is arranged above the gear-like body 21. The free end 30 side of the elastic stopper chip 3 is pushed downward when the rod 10 of the pulling tool 1 for movement is pushed downward to move. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an improvement of a shredder device, and more particularly, includes a moving puller, which is easily pulled out by using a wheel provided at the bottom by pulling out the puller and gripping / pulling the puller. The present invention relates to an improvement of a shredder device having a structure that can be moved.

  In a shredder device configured to incorporate a shredding mechanism at the top, and to receive a shredded material portion that is shredded by the shredding mechanism and sent out downward below the shredding mechanism, use thereof In some places, for example, in offices, there are some in which casters and wheels are provided at the bottom of the shredder device from the viewpoint of facilitating the change of the installation location.

  However, since such a shredder device normally needs to be stably positioned at a predetermined installation location, it is necessary to prevent the casters and wheels from rotating unless the movement is required. This is what is desired. Of course, many casters and wheels are provided with a stopper, but the operation of such a stopper is not always easy because it forces the operator to bend.

  The main problem to be solved by the present invention is that, in a shredder device having a moving puller and a moving wheel, the rotation of the wheel is triggered by pulling out the moving puller for the movement. It is free, and the rotation of the wheel is restricted by the operation of pushing and storing the moving puller at the end of the movement, thereby improving the usability of this type of shredder device.

In order to solve the above problems, in the present invention, the shredder device has the following configurations (1) to (7).
(1) In the upper part, there is a built-in shredding mechanism that shreds the shredded object inserted through the opening of the shredded object such as paper.
(2) Under this shredding mechanism, there is an accommodating part for shredded material that is shredded in the shredding mechanism and fed downward.
(3) having at least a pair of wheels at the bottom,
(4) A moving puller having a pair of rods extending in the vertical direction and a handle portion extending between the upper portions of the pair of rods can be moved in the vertical direction. A shredder device comprising:
(5) The wheel axle is provided with a gear-like body,
(6) Above this gear-like body, an elastic stopper piece having one end side fixed and the other end being a free end, and a hooking protrusion that enters between the teeth of the gear-like body between the both ends from above Is arranged,
(7) The free end side of the elastic stopper piece is pushed downward as the rod of the moving puller is pushed downward, and this pushing causes the engaging protrusion of the elastic stopper piece to move between the teeth of the gear-like body. I try to get in.

  In order to move the shredder device using a pair of wheels, if the gripping part constituting the moving pulling tool is gripped and the rod is moved upward, that is, if the rod is pulled out and moved, the elastic stopper piece can be freely moved. The end-side push is released, and the engaging protrusion of the elastic stopper piece is pulled out between the teeth of the gear-like body provided on the wheel axle, so that the rotation of the axle, that is, the rotation of the wheel becomes free. Thereby, the pulling movement of the shredder device in a state where only the wheel is in contact with the floor surface or the like by gripping the handle portion of the moving pulling tool is enabled.

  After moving the shredder device, gripping the handle part that constitutes the pulling tool for movement and moving the rod downward, that is, pushing and moving the extracted rod, the free end of the elastic stopper piece The side is pushed in again, and the engaging protrusion of the elastic stopper piece again enters between the teeth of the gear-like body provided on the wheel axle, and the rotation of the axle, that is, the rotation of the wheel is locked. Thereby, the shredder device can be stably positioned on the floor surface or the like at the movement end position.

  In the pushing movement of this rod, there is a case where the engaging protrusion of the elastic stopper piece pushed into the protruding end of the tooth of the gear-like body hits and this engaging protrusion does not immediately enter between the teeth of the gear-like body, Since the hooking protrusion is formed on the elastic stopper piece, in such a case, the elastic stopper piece can be bent in a curved shape toward the upper side by the protruding dimension of the tooth. There will be no damage on one side of the stopper or on the gear-shaped body. When the wheel is rotated even a little from the state in which the engaging protrusion of the elastic stopper piece pushed into the protruding end of the gear-like body is in this way, the engaging protrusion enters between the teeth of the gear-like body, The rotation is locked.

  According to the shredder device according to the present invention, the rotation of the wheel is freed by the pulling operation of the moving puller for the movement, and the shredder device can be easily used by using the moving puller and the wheel. It can be moved, and at the end of movement, the rotation of the wheel can be regulated by the operation of pushing and storing the pulling tool for movement, and the shredder device can be stably positioned at the end of movement. .

  The best mode for carrying out the present invention will be described below with reference to FIGS.

  Here, FIG. 1 shows a configuration of a main part of the shredder device 4 in a state where the moving puller is fully pulled out, and FIG. 3 shows a shredder in a state where the moving puller 1 is pushed all the way down. The structure of the main part inside the apparatus 4 is shown. 2 shows a further essential part of FIG. 1, and FIG. 4 shows an enlarged further essential part of FIG. 3. In the state of FIGS. 3 and 4, the elastic stopper is not clear at the cross-sectional position of both figures. The free end 30 side of the piece 3 is pushed downward by the rod 10, and the engaging protrusion 31 is engaged with the gear-like body 21 as shown in FIG. 6. FIG. 5 shows the main structure inside the bottom portion 40 of the shredder device 4 as viewed from above, and the gear-like body 21 is shown on the left side in FIG. 5 with the elastic stopper piece 3 removed. 6, 7, and 8 show only the main part from the side of the shredder device 4 so that the operation of the elastic stopper piece 3 can be easily understood. FIG. 6 shows that the rotation of the wheel 2 is free. 7 shows a state where the wheel 2 is locked, and FIG. 8 shows a state where the engaging protrusion 31 formed on the elastic stopper piece 3 and the tooth 21a of the gear-like body 21 abut each other. The state of the elastic stopper piece 3 in the case where it has been shown is shown respectively. 9 to 12 each show an external configuration of the shredder device 4. FIG.

  The shredder device 4 according to this embodiment includes a moving pulling tool 1, and pulls out the moving pulling tool 1, grasps and pulls it, and easily uses the wheel 2 provided on the bottom 40. It has a structure that can be moved.

  The shredder device 4 has a built-in shredding mechanism 43 for shredding the shredded object inserted into the shredded object insertion opening 42 such as paper in the upper part 41, and below the shredding mechanism 43. The shredding mechanism 43 has a shredded material accommodating portion 44 that is shredded and fed downward.

  In the illustrated example, the accommodating portion 44 includes a front plate 44a, a pair of side plates, a back plate 44b, and a bottom plate 44c, and is configured to have a box shape with the upper surface released. And the upper case 45 provided with the shredding mechanism 43 inside is provided on the accommodating part 44 so that the open | released upper surface of this accommodating part 44 may be plugged up. The shredding mechanism 43 includes a pair of rotary blades (not shown) and a drive motor that drives the rotary blades, and the shredded object inserted through the insertion opening 42 is cut into small pieces by the rotary blades. It is designed to send out as below. A slit-like insertion opening 42 extending in the left-right direction of the shredder device 4 is formed in the upper portion 41 of the upper case 45. Further, a receiving box structure 46 in which an upper surface and a front surface for receiving shredded objects are released is housed in the storage portion 44, and the released front surface of the receiving box structure body 46 is disposed in front of the storage portion 44. The receiving box constituting body 46 and the front plate 44a are integrally assembled so as to be closed by the plate 44a, and the shredded material that is shredded by the shredding mechanism 43 and fed downward is inward of these. In case of stagnation and discarding the shredded material, the front plate 44a is pulled to the front using the holding recess 44d formed on the front plate 44a, and the receiving box structure 46 is pulled out to the side. This is done.

  Further, the shredder device 4 has at least a pair of wheels 2 and 2 on the bottom 40.

  In the illustrated example, the lower end of the wheel 2 is positioned below the lower surface of the bottom plate 44c in the vicinity of both corners where the bottom plate 44c, the back plate 44b, and the side plate contact each other. Is provided. Each of the pair of wheels 2, 2 has a wheel shaft rotatably assembled to the bottom plate 44 c so that the axis of rotation is along the left-right direction of the shredder device 4. Further, the rotation axes of the pair of wheels 2 and 2 are positioned on the same virtual straight line. Specifically, in the illustrated example, a bearing portion 44e of the axle 20 is formed on the bottom plate 44c, and the wheel 2 is assembled to the protruding end of the axle 20 that is rotatably inserted into the bearing portion 44e. It has been. Further, in the illustrated example, casters 47 are provided at both corners of the bottom plate 44c of the accommodating portion 44 on the front side of the shredder device 4, and the shredder device 4 is connected to the casters 47. The wheel 2 is supported on a floor surface or the like.

  Further, the shredder device 4 includes a moving pulling tool 1. The moving pulling tool 1 includes a pair of rods 10 and 10 extending in the vertical direction and a handle portion 11 extending between the upper portions 41 of the pair of rods 10 and 10. And the shredder apparatus 4 is equipped with the said rod 10 in this pulling tool 1 for movement so that a movement to an up-down direction is possible.

  In the illustrated example, the guide tube 44f of the rod 10 with the upper and lower ends released is provided on the inner side of the back plate 44b of the housing portion 44, and the pair of rods 10 and 10 are respectively guided by this guide. By inserting the rod 10 into the tube 44f, the maximum pushing position (storage position) for projecting the contact portion 10a provided at the lower end of the rod 10 of the rod 10 from the lower end of the guide tube 44f is moved to the lower end of the rod 10. The provided retaining portion 10b is incorporated on the back side of the shredder device 4 so as to be movable in the vertical direction up to the maximum extraction position where it abuts against the abutting portion 44g provided on the upper end side of the guide tube 44f. That is, the moving pulling tool 1 stores the portion excluding the handle portion 11 in the maximum push-in position in the storage portion 44, holds the handle portion 11 from this state, and performs an extraction operation. Then, the rod 10 is extracted from the handle 10 and the handle portion 11 is positioned upward. In this extracted state, the shredder device 4 can be pulled and moved by gripping the handle portion 11 while tilting the shredder device 4 so that only the pair of wheels 2 and 2 are in contact with the floor surface. It has become.

  The axle 20 of the wheel 2 is provided with a gear-like body 21, and one end side is fixed above the gear-like body 21 and the other end is a free end 30. Between the teeth 21 a of the gear-like body 21, an elastic stopper piece 3 having a hooking protrusion 31 that enters from above is disposed.

  In the illustrated example, a gear-like body 21 is fitted to the axle 20 in the bearing portion 44e for each of the axles 20 of the pair of wheels 2 and 2, and as the axle 20 rotates. The gear-like body 21 is also rotated in the bearing portion 44e, and when the rotation of the gear-like body 21 is prevented in the bearing portion 44e, the rotation of the axle 20 is also prevented. In the example shown in the figure, the gear-like body 21 has a substantially equal distance between teeth 21 a having a long rib shape along the rotation axis direction of the axle 20 and teeth 21 a adjacent to each other in the rotation direction of the axle 20. Open and have multiple. In addition, an open portion 44h is formed on the upper portion 41 of the bearing portion 44e so that the upper end of the gear-like body 21 faces upward.

  On the other hand, the elastic stopper piece 3 is formed so as to have a long strip shape in the front-rear direction of the shredder device 4, and one end portion directed to the front side of the shredder device 4 on the bottom plate 44 c side of the housing portion 44. And the free end 30 is directed to the back side of the shredder device 4. Further, the open portion 44h is blocked from above by both ends of the elastic stopper piece 3, and the width direction of the elastic stopper piece 3 is between the both ends and on the lower surface portion of the elastic stopper piece 3. A hooking protrusion 31 having a long rib shape is formed.

  Then, the free end 30 side of the elastic stopper piece 3 is pushed downward as the rod 10 of the moving puller 1 is pushed downward, and the engaging protrusion 31 of the elastic stopper piece 3 is geared by this pushing. It enters between the teeth 21a of the body 21.

  Specifically, in the illustrated example, the lower end of the guide tube 44f for housing the rod 10 is positioned directly above the free end 30 of the elastic stopper piece 3. In a state where the abutting portion 10a of the rod 10 is not projected from the lower end of the guide tube 44f, that is, in a state where the rod 10 is located at a position other than the maximum pushing position, the elastic stopper piece 3 moves the engaging projection 31. It is maintained in a state where it cannot be inserted between the teeth 21 a of the gear-like body 21. (FIG. 6) When the rod 10 is pushed into the maximum pushing position, the abutting portion 10a of the rod 10 is pressed against the abutted portion 32 formed on the upper surface portion of the elastic stopper piece 3 on the free end 30 side, and is elastic. The stopper piece 3 is elastically deformed so as to push the free end 30 side downward. (FIG. 7) Then, due to the elastic deformation of the elastic stopper piece 3, the engaging protrusion 31 of the elastic stopper piece 3 enters between the teeth 21a of the gear-like body 21 from above. (FIG. 7) When the rod 10 is extracted and moved from the state in which the engaging protrusion 31 of the elastic stopper piece 3 is inserted between the teeth 21a of the gear-like body 21, the elastic stopper piece 3 moves toward the free end 30 side. Since the pressing by the rod 10 is released, the elastic stopper piece 3 elastically returns to the state before elastic deformation, and the engaging protrusion 31 is extracted from between the teeth 21a of the gear-like body 21. (FIG. 6) In the illustrated example, one end of the spring is pressed against the lower surface of the elastic stopper piece 3 on the free end 30 side, and the other end of the spring is fixed to the bottom plate 44 c side of the housing portion 44. The coil spring 33 is provided, and when the pressure by the rod 10 to the free end 30 side of the elastic stopper piece 3 is released, the elastic return of the elastic stopper piece 3 is ensured by the elastic spring of the compression coil spring 33. It has been made smooth.

  In order to move the shredder device 4 using the pair of wheels 2 and 2, when the handle 10 constituting the moving puller 1 is gripped and the rod 10 is moved upward, that is, the rod 10 is extracted and moved. Then, the pushing of the elastic stopper piece 3 on the free end 30 side is released, and the engaging protrusion 31 of the elastic stopper piece 3 is pulled out from between the teeth 21a of the gear-like body 21 provided on the axle 20 of the wheel 2, and the axle. The rotation of 20, that is, the rotation of the wheel 2 is free. As a result, the shredder device 4 can be pulled while the handle 11 of the moving pull tool 1 is gripped and only the wheel 2 is in contact with the floor surface or the like.

  After the shredder device 4 is moved, if the handle 10 constituting the moving pulling tool 1 is gripped and the rod 10 is moved downward, that is, if the extracted rod 10 is pushed and moved, the elasticity is obtained. The free end 30 side of the stopper piece 3 is pushed in again, and the engaging protrusion 31 of the elastic stopper piece 3 enters again between the teeth 21a of the gear-like body 21 provided on the axle 20 of the wheel 2 to rotate the axle 20, that is, The rotation of the wheel 2 is locked. Thereby, the shredder device 4 can be stably positioned on the floor surface or the like at the movement end position.

  When the rod 10 is pushed in, the engaging protrusion 31 of the elastic stopper piece 3 pushed into the protruding end of the tooth 21a of the gear-like body 21 comes into contact with the tooth 21a of the gear-like body 21 so that the engaging protrusion 31 is immediately formed. In some cases, the engaging protrusion 31 is formed on the elastic stopper piece 3, and in such a case, the elastic stopper piece 3 is curved so that the distance between both ends of the elastic stopper piece 3 is upward by the protruding dimension of the teeth 21 a. Even in such a case, the elastic stopper piece 3 side or the gear-like body 21 side is not damaged. (FIG. 8) When the wheel 2 is rotated even a little from the state in which the engaging protrusion 31 of the elastic stopper piece 3 pushed into the protruding end of the tooth 21a of the gear-like body 21 in this way, the teeth of the gear-like body 21 are obtained. The engaging protrusion 31 enters between 21a, and the rotation of the wheel 2 is locked.

  In the illustrated example, each of the pair of wheels 2, 2 has an axle 20, and a gear-like body 21 is provided on each of the axles 20, and the pair of rods 10, 10 that constitute the moving puller 1. One of the pair of rods 10 that press the elastic stopper piece 3 so that the engaging protrusion 31 is engaged with the gear-like body 21 provided on the axle 20 of one wheel 2 and that constitutes the pulling tool 1 for movement, The other end of 10 presses the elastic stopper piece 3 so that the engaging protrusion 31 is engaged with the gear-like body 21 provided on the axle 20 of the other wheel 2, but at both ends of one axle. Each of the wheels 2 may be provided. In this case, one gear-like body provided on the one axle and one elastic stopper piece having a hooking projection hooked on the gear-like body. I will lock the wheel 2 It can be.

Front view of main parts of the shredder device 4 Fig. 1 is an enlarged configuration diagram of the main part Front view of main parts of the shredder device 4 Fig. 3 is an enlarged configuration diagram of the main part Plane configuration diagram of main parts of the shredder device 4 Side view of essential parts of the shredder device 4 Side view of essential parts of the shredder device 4 Side view of essential parts of the shredder device 4 Front view of the shredder device 4 Planar configuration diagram of the shredder device 4 Side view of the shredder device 4 Rear view of the shredder device 4

Explanation of symbols

DESCRIPTION OF SYMBOLS 4 Shredder apparatus 40 Bottom part 41 Upper part 42 Insertion opening 43 Shredding mechanism 44 Housing part 1 Pulling tool 10 Rod 11 Handle part 2 Wheel 20 Axle 21 Gear-like body 21a Tooth 3 Elastic stopper piece 30 Free end 31 Engagement protrusion

Claims (1)

The upper part has a built-in shredding mechanism that shreds the shredded object inserted through the opening of the shredded object such as paper.
Under this shredding mechanism, it has a container for shredded objects that are shredded in the shredding mechanism and fed downward,
Having at least a pair of wheels at the bottom,
A shredder device comprising a moving puller having a pair of rods extending in the vertical direction and a handle portion extending between the upper portions of the pair of rods, the rod in the moving puller being movable in the vertical direction. Because
The axle of the wheel is provided with a gear-like body,
Above this gear-like body, there is disposed an elastic stopper piece that is fixed at one end and has the other end as a free end, and has a hooking protrusion that enters between the teeth of the gear-like body from above. And
The free end of the elastic stopper piece is pushed downward as the moving puller is pushed downward, so that the engaging protrusion of the elastic stopper piece enters between the teeth of the gear-like body. A shredder device characterized by that.

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