JP5501502B2 - shutter - Google Patents

Description

  The present invention relates to an oscillating shutter, and more particularly to a shutter that is locked by blocking an open shutter.

Unlike a slide-type shutter, a swing-type shutter that opens and closes an opening of a structure by swinging does not require an area where the shutter slides on the same plane as the opening. It is often used for some small structures.
For example, in the case where a cutting blade is provided in the housing, such as a desktop shredder, and the trash box can be pulled out below the housing, in order to prevent the cutting blade from being exposed when the trash box is pulled out, A swinging shutter is often provided between the cutting blade and the waste box.

  Japanese Patent Laid-Open No. Sho 61-268363 discloses a shredder provided with a shutter between a cutting blade and a waste box. In this case, on the inside of a door that is swung forward around the lower end, The trash can is detachably provided, and the upper end of the door is pulled forward, so that the trash can swings around the lower end. It is shielded by pushing it up.

That is, when the trash box is stored in the housing, the position of the shutter is regulated by the spring provided in the housing so that the shutter is kept open, but the trash box is swung by pulling out the door. At this time, the upper end of the trash box pushes up the swinging end of the shutter, elastically deforms the spring over the beat, and the shutter is swung in the shielding direction.
With this configuration, at the same time that the door is pulled out, the position restriction by the spring is released by the rotation of the waste box, the shutter swings in the shielding direction, and the shredder cutting blade and the waste box are shielded. You can

However, since the shutter shielding state is not locked, it can be opened by hand and there is a risk that the hand touches the cutting blade.
In addition, since the waste bin is accommodated inside the door in a fitted state, when discharging the waste, the operation for pulling out and swinging the upper end of the door and for removing the waste bin from the door The operation is necessary, and the waste box cannot be pulled out and thrown away instantly.

JP 61-268363 A

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to realize, with a simple configuration, a mechanism in which a shutter is automatically shielded and automatically locked when the shutter is shielded.

In order to solve the above-described problems, a shutter according to the present invention is configured such that a lock piece is slidably attached to a shutter member that shields an opening of a structure, and an accommodating portion into which the lock piece is fitted is provided in the structure. The lock piece is slid and fitted into the housing portion by sliding an operation member provided near the opening and swinging the shutter member in the shielding direction. It is a feature.
Also, a shutter member that shields the discharge path of shredded waste by the cutting blade, an elastic member that swings the shutter member in the shielding direction, and a waste box that urges the elastic member by a sliding operation toward the inside of the housing The shutter member is slidably attached to the shutter member, and an accommodating portion into which the lock piece is fitted is provided in the vicinity of the discharge path, and the waste box is slid toward the outside of the housing. By doing so, the shutter member swings in the shielding direction, and the lock piece is slid and fitted into the accommodating portion.

The shutter according to claim 1 slidably attaches a lock piece to a shutter member that shields the opening of the structure, and a housing portion into which the lock piece is fitted is provided in the vicinity of the opening of the structure. Since the lock piece is slid and fitted into the housing portion by sliding the operation member for swinging the shutter member in the shielding direction, the shutter is locked in the shielding state. be able to.
According to a second aspect of the present invention, there is provided a shutter member for shielding a shredder discharge path by a cutting blade, an elastic member for swinging the shutter member in a shielding direction, and a sliding operation toward the inside of the housing. In the shutter consisting of a trash box for energizing the trash box, the lock piece is slidably attached to the shutter member, and the trash box is slid by providing an accommodating portion to which the lock piece is fitted in the vicinity of the discharge path. As a result, the shutter member swings in the shielding direction, and the lock piece is slid and fitted into the accommodating portion, so that the shutter can be locked in the shielding state, and the waste box is pulled out. It is possible to prevent access to the cutting blade from the space portion that occurs at the time.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a shredder to which a shutter according to an embodiment of the present invention is applied, (a) is a longitudinal sectional view at a position of a lock part, and (b) is a perspective view in which a shutter is visible by removing the upper part of the shredder. is there. It is the said shredder of the state which pulled out the waste box, (a) is a longitudinal cross-sectional view in the position of a lock part, (b) is the perspective view which removed the upper part of the shredder and made the shutter visible. It is a perspective view which shows the shutter which concerns on this invention. It is a perspective view which shows the state which decomposed | disassembled the said shutter. It is a perspective view which shows the spring biasing part of the said shutter. It is explanatory drawing which shows the state which the latching convex part of a shutter member latches in the latching recessed part of a waste box, (a) is a state in which a contact part is pressed, (b) is a state in which a contact part is pressed. The state in which the locking projection is rotated toward the locking recess, and (c) shows the locking projection engaging with the locking recess. It is the longitudinal cross-sectional view which cut | disconnected the shredder in the position of the lock | rock part, (a) is the state which accommodated the waste box, (b) is the state which pulls out the waste box and locks a shutter, (c) is in the locked state. Show. It is a perspective view which shows a waste box. It is explanatory drawing which shows the state by which a lock piece is fitted by the accommodating part, (a) is before a lock | rock, (b) is during locking operation, (c) shows after a lock | rock. It is a perspective view which shows the state where a waste box is pushed in in a housing, (a) is the state taken out from the housing, (b) is the state accommodated, (c) shows the state accommodated. It is a principal part perspective view which shows the state by which a shutter member is latched by a waste box. It is a longitudinal cross-sectional view which shows the state of the bottom part of a housing. It is a principal part perspective view which shows the modification of the said lock part.

  A preferred embodiment of the present invention will be described with reference to the accompanying drawings. In addition, embodiment is not limited to the following forms, The other aspect is also possible if the subject of this invention can be solved.

  Fig.1 (a) is sectional drawing which shows the shredder 2 with which the shutter 1 of embodiment of this invention is applied. The shredder 2 is for cutting a sheet-like object to be cut such as paper or a compact disk. The shredder introduced from the insertion port 3 is cut by a cutting blade 5 provided inside the housing 4. Cutting is performed, and the waste is discharged into a waste box 30 provided below the cutting blade 5.

A waste box 30 is accommodated in the front of the housing 4 of the shredder 2 so as to be able to be pulled out.
On the upper surface of the housing 4, a charging port 3 for loading a sheet material is provided.
Below the insertion port 3, a pair of cutting blades 5 for cutting the sheet material into a linear shape, and a cutting blade 5 'for cross-cutting are disposed below the pair of cutting blades 5'. The cutting blade 5 is provided with a number of sharp blades on the peripheral surface of a cylindrical body, and the two cylindrical bodies are arranged in parallel horizontally and are rotatably supported at both ends. A cutting blade 5 'for cross-cutting is formed by spirally cutting the peripheral surface of a cylindrical body.

Above these cutting blades 5, sensors (not shown) are attached, and when the sensors detect the passage of the object to be cut, the drive motor 8 is operated to rotate the cutting blades 5. The object to be shredded is cut into pieces.
The shredded waste is discharged to a waste box 30 disposed below the cutting blade 5.

A shutter 1 according to the present invention is disposed between the cutting blade and the waste box.
As shown in FIG. 1B, the shutter is swingably disposed in a discharge path 7 opened in a partition wall 6 disposed below the cutting blade 5, as shown in FIG. Moreover, when the waste box 30 is pulled out, the discharge path 7 is shielded to prevent access to the cutting blade 5 from the space that is generated when the waste box 30 is pulled out.

The configuration of the shutter 1 will be described with reference to FIG.
The shutter 1 includes a shutter member 10, a torsion coil spring 20 as an elastic member, and a waste box 30 as an operation member, and an automatic lock function that is automatically locked when the shutter 1 is closed. And an open maintaining function for automatically maintaining the open state when the shutter is opened.

The shutter member 10 includes a shielding portion 11 that shields the discharge path 7, a spring biasing portion 12 that causes the elastic force of the torsion coil spring 20 to act on the shielding portion 11, a pivot shaft 13 that swings the shutter member 10, And a lock portion 40 that locks the shutter member 10 in a shielded state.
The shielding part 11 is made of a plate-like member having a size capable of shielding the discharge path 7 provided in the partition wall 6 and, as shown in FIG. 4, a small hole for slidably attaching a lock piece 41 described later. 42 and a guide wall 43 are provided at two locations on the swing end.

On both sides of the shielding part 11, spring urging parts 12 are connected. The spring urging unit 12 is a part for urging the torsion coil spring 20 by receiving pressure from the trash box 30 when the trash box 30 is pushed into the housing and the shutter 1 is opened.
A mechanism for maintaining the open state of the shutter by sliding the waste box 30 in the storage direction is provided at the side edge of the spring biasing portion 12. The side edge portion is formed in a cam shape in cross section, and as shown in FIG. 5, an inclined contact portion 15 and a locking convex portion 16 are formed at the tip end portion on the swing end portion side. ing.

The contact portion 15 is a portion made of an inclined flat surface formed on the lower side of the side edge portion of the spring biasing portion 12, and receives a pressure from the waste box 30 at this portion.
On the other hand, the locking convex portion 16 is a curved portion that is continuous above the contact portion 15. That is, the locking projection 16 is formed in a convex shape that is smoothly continuous from the contact portion 15 toward the side opposite to the swinging direction C in the opening direction, and the convex tip portion is It has a shape that can be engaged with a locking recess 34 of the waste box 30 described later.

The contact portion 15 is provided below the pivot shaft 13 of the shutter member 10 and the contact portion 15 is formed in an inclined shape, so that the waste box 30 is slid to press the contact portion 15 of the shutter member 10. The force F applied at the time can be dispersed in the direction C in which the shutter member 10 is swung in the opening direction and in the direction orthogonal thereto.
Since the shutter member 10 can be reliably rotated by the force in the swing direction C, as the shutter member 10 rotates, the shutter member 10 slips from the inclined contact portion 15 to the locking convex portion 16. It moves smoothly on a good curved surface, and the locking projection 16 is engaged with a locking recess 34 (described later) of the waste box 30 (see FIG. 6).
In this case, the arrangement position of the pivot shaft 13 of the shutter member 10 is set so that the force dispersed in the normal direction of the swinging direction of the shutter member 10 does not act excessively in the direction of pushing down the waste box 30. ing.

As shown in FIG. 3, the spring biasing portion 12 having such a shutter opening maintaining mechanism has a direction in which the shutter is opened by abutting one end portion of the torsion coil spring 20 at the connecting portion with the shielding portion 11. In addition, an urging force is applied to the spring.
The shielding portion 11 and the spring biasing portion 12 are fixed to the pivot shaft 13 via the continuous portion 17. The pivot shaft 13 is swingably supported by a mounting portion provided on the inner wall surface of the housing 4, and the coil portion of the torsion coil spring 20 is fitted into the shaft core with play. ing.

A lock portion 40 is provided at the swinging end portion of the shielding portion 11. As shown in FIG. 2, the lock portion 40 is provided with a lock mechanism for automatically fixing the shutter member 10 to the partition wall 6 when the shutter 1 is closed.
That is, as shown in FIG. 4, the lock portion 40 is formed so that the lock piece 41 can slide in the small hole 42 provided in the shielding portion 11, and the lock piece 41 is covered with the cover 44. .

  A protrusion 45 is formed on the lower surface of the lock piece 41, and the lock piece 41 is slid in a state where the protrusion 45 is inserted into the small hole 42 provided in the shielding part 11. ing. The lock piece 41 slides in the direction in which the trash box 30 is pulled out, so that a lock operation portion 32 (described later) formed on the trash box 30 comes into contact with the protrusion 45, and the lock piece 41 is provided on the partition wall 6. It is comprised so that it may slide in the direction made to fit in the accommodating part 60.

A torsion coil spring 20 is attached to the pivot shaft 13 of the shutter member 10 having the above configuration. The torsion coil spring 20 is interposed between the spring biasing portion 12 of the shutter member 10 and the mounting portion provided on the inner wall surface of the housing 4, and the biasing force is released by the spring biasing portion 12. The shutter member 10 is swung in the shielding direction by the elastic force at the time.
Below the shutter member 10, the waste box 30 is slidably accommodated.

As shown in FIG. 7, the waste box 30 is removable by being pulled out from the housing 4.
The operation of pulling out the waste box 30 serves as a trigger for shielding the shutter, and also serves as a trigger for sliding the lock piece 41 of the shutter member 10 into the accommodating portion 60 of the partition wall 6.
On the other hand, the operation of pushing in the trash box 30 serves as a trigger for opening the shutter, and engages the locking convex part 16 of the shutter member 10 with the locking concave part 34 of the trash box 30 to change the shutter open state. Trigger to maintain.

The configuration of the waste box 30 will be described with reference to FIG.
A handle portion 31 that is gripped when being pulled out is provided on the front portion of the waste box 30, and a lock operation portion 32, a pressing portion 33, and a locking recess 34 are provided on the back portion.

The lock operation part 32 is provided at a position corresponding to the lock part 40 of the shutter member 10 at the upper end of the rear face of the trash box 30 and moves the trash box 30 in the direction A as shown in FIG. Accordingly, as shown in FIG. 9, the lock piece 41 is to be slid in the direction A in which the lock piece 41 is fitted in the accommodating portion 60 of the partition wall 6.
The upper end portion of the lock operation portion 32 extends to a position where it abuts on the protrusion 45 of the lock piece 41, and the protrusion 45 can be jumped over smoothly by moving the waste bin 30 in the pulling direction A. Both sides are tapered.

A pressing portion 33 and a locking recess 34 are provided on the upper rear side of the both sides of the waste box 30. As shown in FIG. 10, when the scrap box 30 is moved in the direction B to be pushed, as shown in FIG. 11, the torsion coil spring 20 is attached by pressing the spring urging portion 12 of the shutter member 10. This is a part for opening the shutter.
Specifically, as shown in FIG. 8, the upper end portion from the side surface portion to the back surface portion of the waste bin 30 is cut out in a square shape, and the corner portion at the upper end of the side surface portion becomes the pressing portion 33, and the pressing portion 33. Concave corners that continue downward from the bottom form locking recesses 34.

  The pressing part 33 is a part that presses the contact part 15 of the shutter member 10 when the waste box 30 is pushed into the housing 4, and presses the contact part 15 in the horizontal direction as shown in FIG. Thus, the force applied to the contact portion 15 is distributed in the shutter opening direction (that is, the tangential direction) and in the perpendicular direction (that is, the normal direction). When this tangential force acts on the torsion coil spring 20, the shutter member 10 is swung in the opening direction.

At this time, the locking convex portion 16 of the spring urging portion 12 is rotated in the shutter opening direction C by the swing of the shutter member 10, and therefore, smoothly on the ridge line from the pressing portion 33 toward the locking concave portion 34. While sliding, it comes to be locked in the locking recess 34 (see FIG. 6).
Accordingly, it is possible to open the shutter member 10 sealing the waste box 30 and maintain the open state only by pushing the waste box 30 in the accommodation direction.
Note that a part of the normal force dispersed when the contact portion 15 is pressed works as a drag force for displacing the waste bin 30 downward, but this downward displacement is prevented and the shutter is released. In order to promote engagement with the locking recess 34 by rotation of the member 10, the ridge line portion from the pressing portion 33 of the waste box 30 toward the locking recess 34 is designed to reduce friction.
Rails are provided on the bottom surface portion 9 of the housing 4 so that the waste box 30 can be taken in and out smoothly (see FIG. 12).

A use state of the shutter 1 having the above-described configuration will be described.
When shredded waste accumulates in the waste box 30 of the shredder 2, the waste box 30 is pulled out and taken out as shown in FIG. Since the stop protrusion 16 is disengaged from the locking recess 34 by the movement of the waste box 30 in the pull-out direction A, the shutter member 10 is swung in the shielding direction by the elastic force of the torsion coil spring 20.

When the shutter member 10 is shielded, as shown in FIG. 9, the lock operation unit 32 of the trash box 30 moves the lock piece 41 provided on the shutter member 10 as the trash box 30 moves in the pulling direction A. It is made to slide and it is made to fit in the accommodating part 60 of the partition wall 6. FIG.
Thereby, when the waste box 30 is pulled out, the shutter 1 is locked in a shielded state.

When the waste box 30 is accommodated in the housing 4, as shown in FIG. 10, the waste box 30 is slid to press the inclined contact portion 15 of the shutter member 10, and the shutter member 10 is shaken in the opening direction. When the shutter 1 is moved to a predetermined open state, the locking convex portion 16 of the shutter member 10 is locked to the locking concave portion 34 of the waste box 30, whereby the open state of the shutter 1 is maintained. For this reason, in the state in which the waste box 30 is housed in the housing 4, even when the shutter member 10 is not kept pressed by the waste box 30, the open state of the shutter can be maintained.
As a result, the biasing force of the torsion coil spring 20 for shielding the shutter acts only when the trash box 30 is pulled out, and it does not act while the trash box 30 is housed in the housing 4. The waste bin 30 does not suddenly pop out.

In addition, as shown in FIG. 13, the lock part 40 provided in the shutter member 10 may be configured to urge the lock piece 47 in the fitting direction by the elastic member 46.
In this case, it is preferable to process the corners into a taper shape or a round shape so that the lock piece 47 can be easily fitted into the accommodating portion 60 by swinging the shutter member 10.
Further, the abutting portion 15 may be a curved surface that curves continuously with the locking convex portion 16, or the abutting portion 15 may be positioned at the tip of the spring biasing portion 12.

  The shutter according to the present invention can be widely applied to a shutter disposed in the opening between the cutting blade provided in the housing and the waste box, regardless of the shredder. A member, and an elastic member that swings the shutter member in the shielding direction. The shutter member is provided with a pressing portion that presses the shutter member and a locking recess that is continuous with the pressing portion. Further, an urging portion having a contact portion with which the pressing portion is contacted and a locking convex portion continuous with the contact portion toward the side opposite to the swinging direction in the opening direction is provided. At this time, by sliding the waste box in the direction to open the shutter member, the pressing portion presses the contact portion of the shutter member, swings the shutter member in the opening direction, and locks the locking convex portion. What is necessary is just to comprise so that it may be made to lock in the direction of a recessed part and an urging | biasing state may be maintained. The operation member may be provided as a separate member from the waste box.

  The present invention can be applied to an oscillating shutter employed in any apparatus.

DESCRIPTION OF SYMBOLS 1 ... Shutter 2 ... Shredder 3 ... Input port 4 ... Housing 5, 5 '... Cutting blade 6 ... Partition wall 7 ... Discharge path (opening part)
DESCRIPTION OF SYMBOLS 8 ... Drive motor 9 ... Bottom part 10 ... Shutter member 11 ... Shielding part 12 ... Spring biasing part (biasing part)
DESCRIPTION OF SYMBOLS 13 ... Pivot shaft 15 ... Contact part 16 ... Locking convex part 17 ... Continuous part 20 ... Torsion coil spring (elastic member)
30 ... Trash box (operation member)
32 ... Lock operation part 33 ... Pressing part 34 ... Locking recess
DESCRIPTION OF SYMBOLS 40 ... Lock part 41, 47 ... Lock piece 42 ... Small hole 43 ... Guide wall 44 ... Cover 45 ... Projection part 46 ... Elastic member 60 ... Accommodating part

Claims (2)

The lock piece (41, 47) is slidably attached to the shutter member (10) that shields the opening (7) of the structure (2), and the accommodating part (41, 47) is fitted into the lock piece (41, 47). 60) is provided in the vicinity of the opening (7) of the structure (2),
By sliding the operating member (30) for swinging the shutter member (10) in the shielding direction, the lock pieces (41, 47) are slid and fitted into the accommodating portion (60). A shutter characterized by being configured as described above. A shutter member (10) for shielding the shredded waste discharge path (7) by the cutting blade (5), an elastic member (20) for swinging the shutter member (10) in the shielding direction, and the inside of the housing (4) In a shutter (1) consisting of a waste bin (30) for biasing the elastic member (20) by a sliding operation toward the
A lock piece (41, 47) is slidably attached to the shutter member (10), and a receiving portion (60) into which the lock piece (41, 47) is fitted is provided in the vicinity of the discharge path (7). By sliding the waste box (30) in the direction of pulling out from the housing (4), the shutter member (10) swings in the shielding direction and the lock pieces (41, 47) are slid, A shutter configured to be fitted into the accommodating portion (60).

Images