KR100418055B1 - brake structure of cover - Google Patents

Abstract

(Problem) The braking structure of the cover which can reduce the change of braking force of the rotary damper, can close the cover with good operability, and can assist the rotation of the cover and assist the braking of the cover by the finger member. to provide.

(Measures) In the braking structure of the cover, the rotation of the cover 5 which rotates in the vertical direction with respect to the support shaft 4 arranged horizontally is braked by the viscous resistance of the viscous fluid 14 in the rotary damper 11. In the rotary damper 11, one end is fixed to the housing 12, and the other end is provided with a coil spring 16 fixed to the rotor 13 to release the holding force of the coil spring 16. In the state, the center G of the lid 5 is positioned on a substantially vertical line of the axis of the support shaft 4.

Description

Brake structure of cover

The present invention relates to a braking structure of a lid that rotates in a vertical direction, for example, to brake the rotation of a lid such as a printer.

When braking a cover such as a printer, which rotates in a vertical direction with respect to a horizontally arranged support shaft, a rotating damper that obtains a braking force by the viscous resistance of the viscous fluid is used.

In the braking structure of the lid, the braking force acts even when the lid is rotated in the open direction or the lid is rotated in the closing direction because the lid is simply braked.

Further, if the center of gravity of the lid is located on a substantially perpendicular line of the axis of the support shaft, and the lid is rotated in the direction of closing the lid or in the direction of opening the lid further, the center is moved by the rotation of the lid. As the cover rotates, the rotation speed of the cover increases, so the quality of the cover rotates.

Thus, in the rotation damper, a braking of the lid is provided, in which a carbon dioxide member having one end fixed to the housing and the other end fixed to the rotor is installed, and the rotary damper is attached in a state in which the finger force in the direction of opening the lid is accumulated on the carbon member. A structure was proposed

According to the braking structure of the lid, since the finger member accumulates the force in the direction in which the lid is opened, when the cover is closed and the lock mechanism for locking in the position is released, the finger force of the finger member becomes the viscosity of the viscous fluid. Although covered by resistance, the cover is opened by the holding force of the finger member.

And since the cover is supported in the opening direction by the holding force of the finger member, it is prevented from rotating in the closing direction.

However, in the latter braking structure, the cover is opened by the holding force of the finger member when the lock mechanism is released by releasing the lock mechanism, and the cover rotates when the center of the cover passes along the vertical line of the axis of the support shaft. The center of the lid is moved by the cover, and the rotational speed of the lid is increased as the lid is rotated by the force of the finger member acting on the lid, thereby degrading the quality of the lid.

In addition, when the cover is closed, the cover operation is deteriorated because the cover must be rotated in response to the finger force of the finger member so that the force can be accumulated in the finger member.

The present invention has been made to solve the above-mentioned disadvantages, and it is possible to reduce the change in the braking force of the rotary damper, to close the cover with good operability, and to assist and brake the rotation of the cover by the fingering member. It is to provide a braking structure of the cover that can assist the.

1 is a perspective view of an open state of a cover of a printer to which a braking mechanism of a cover of an embodiment of the present invention is applied;

2 is a cross-sectional view showing an example of a rotary damper used in one embodiment of the present invention.

3 is a cross-sectional view showing a braking structure of a cover which is one embodiment of the present invention applied to FIG.

4 is an operation explanatory diagram

Explanation of symbols on the main parts of the drawings

1-printer 2-housing

2a-recess 2b-locking recess

3-opening 4-support shaft

5-cover 5a-recess

5b-shaft 5c-locking recess

11-Rotary Damper 12-Housing

12a-Receptacle 12b-Taekyung Area

12c-narrow neck 12d-step

12e-attachments 12f-engagement protrusion

12g-Jam Click 13-Rotor

13a-Insertion part 13b-Taekyung part

13c-Cervix 13d-Mandrel

13e-recess 13f-attachment

13g-protrusion 13h-recess

13i-Alignment Stone 14-Viscous Fluid

15-O-ring 16-Coil Spring

17-cover 17a-through hole

17b-fitting G-center

In the braking structure of a lid, the center of the lid is approximately the axis of the support shaft in the braking structure of the lid for braking the pivot of the lid which rotates in the vertical direction with respect to the supporting shaft arranged horizontally by the viscous resistance of the viscous fluid in the rotary damper. In a state of being placed in a vertical line, one end of the finger member which has opened the finger force is fixed to the housing of the apparatus with the cover and the other end of the finger member is fixed to the cover, or in the rotary damper, one end is fixed to the housing. The center of the cover is positioned on a substantially perpendicular line of the axis of the support shaft in a state in which the other end is fixed to the rotor with a support member fixed to the rotor and the force of the support member is opened.

In addition, it is preferable to use the coil member as the coil spring.

Embodiment of the Invention

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described based on drawing.

1 is a perspective view of an open state of a cover of a printer to which a braking structure of a cover is applied according to an embodiment of the present invention, FIG. 2 is a cross-sectional view showing an example of a rotary damper used in an embodiment of the present invention, and FIG. Sectional drawing which shows the braking structure of the cover which is one Embodiment of this invention applied to 1, and FIG. 4 is explanatory drawing about operation | movement.

In addition, the braking structure shown in FIG. 3 is arrange | positioned in the circled part of FIG.

In these drawings, the printer 1 includes a housing 2 having an opening 3 on the upper side, a support shaft 4 provided horizontally in an opening 3 portion of the housing 2, and a housing. The cover 5 is rotatably supported in the vertical direction with respect to the rotor 13 of the rotary damper 11 serving as the support shaft attached to the above (2), and has a lid 5 for opening and closing the opening 3.

In the portion of the housing 2 which faces the support shaft 4 in the horizontal direction, a cylindrical recess 2a into which the housing 12 of the rotary damper 11 is inserted, and the recess 2a The engagement recesses 2b through which the engagement protrusions 12f formed on the outer periphery of the housing 12 are inserted into and engaged with each other and extend in the axial direction are formed.

In the cover 5 portion of the housing 2 which faces the recess 2a in the horizontal direction, a cylindrical recess 5a into which a part of the rotor 13 of the rotary damper 11 is inserted is inserted. A cylindrical shaft 5b formed at the center of the bottom of the concave portion 5a, and an engaging protrusion formed in the outer circumference of the rotor 13 in communication with the concave portion 5a and extending in the axial direction ( A locking recess 5c to which 13i) is inserted and engaged is formed.

Moreover, the recessed part 5a by which the support shaft 4 is rotatably engaged is formed in the part of the cover 5 which opposes the support shaft 4.

The rotary damper 11 has a cylindrical housing 12 having a bottom inserted into the recess 2a of the housing 2, and a part of the rotary damper 11 is inserted into the housing 12, and from the housing 12. Viscous fluid such as a cylindrical rotor 13 into which the protruding portion is inserted into the recess 5a of the lid 5 and the silicone oil filled in the space formed by the housing 12 and the rotor 13. 14, an o-ring 15 for sealing between the housing 12 and the rotor 13 so that the viscous fluid 14 does not flow out, and one end of which is fixed to the housing 12 and the other end of the rotor The coil spring 16 which is fixed to 13 is comprised, and the cover 17 which fixes the rotor 13 from the housing 12 is comprised.

In the housing 12, a cylindrical attaching portion 12e is formed at the center of the bottom of the cylindrical receiving portion 12a, extends in the axial direction on the outer circumference thereof, and the locking recess of the housing 2 ( The engagement protrusion 12f inserted into 2b) is formed, and the locking click part 12g is formed in the front-end | tip of outer periphery at predetermined intervals.

Further, the receiving portion 12a has a large diameter diameter portion 12b located on the open end side and a small diameter diameter small on the bottom side concentric with the diameter diameter portion 12b. A stepped portion 12d is formed on the boundary between the taekyung portion 12b and the narrow diameter portion 12c.

The rotor 13 is comprised by the cylindrical insertion part 13a inserted in the housing 12, and the cylindrical projection part 13g which protrudes from the housing 12 and the cover 17. As shown in FIG.

Then, the insertion portion 13a is a taekyung portion 13b rotatably fitted to the taekyung portion 12b, and a narrow diameter portion 13c rotatably fitted to the narrow diameter portion 12c with a slight gap. At the boundary between the taekyung portion 13b and the narrow diameter portion 13c, a wound stepped portion 13d is formed to form a space for accommodating the O-ring 15 together with the stepped portion 12d. .

In addition, the insertion portion 13a is formed with a cylindrical recess 13e for receiving the attachment portion 12e from the end of the narrow diameter portion 13c toward the caliber portion 13b, and the recess 13e. The columnar attachment portion 13f is formed at the center of the ceiling of the beam.

Further, in the protruding portion 13g, a cylindrical recess 13h into which the shaft 5b of the lid 5 is fitted is formed at the protruding end, extends in the axial direction at the outer circumference, and the latching recess of the lid 5. An engagement protrusion 13i inserted into the portion 5c is formed.

The coil spring 16 is accommodated in the recess 13e of the rotor 13, one end of which is fixed to the attachment part 12e of the housing 12, and the other end of the coil spring 16 is attached to the attachment part of the rotor 13 ( 13f).

In the cover 17, a keyhole-shaped through hole 17a through which the projecting portion 13g of the rotor 13 is rotatably penetrated is formed at the center thereof, and is clicked on the side opposite to the housing 12. Engaging portions 17b engaged with the portions 12g are formed at predetermined intervals corresponding to the engaging click portions 12g.

Since the rotary damper 11 used in one embodiment of the present invention can be assembled by a normal assembling method, description thereof will be omitted.

Subsequently, attachment of the rotary damper 11 and the lid 5 will be described.

First, the housing 12 of the rotary damper 11 is inserted into the recess 2a formed in the housing 2 of the printer 1, and the engagement protrusion 12f is inserted into the locking recess 2b. do.

Thus, when the housing 12 is inserted in the recessed part 2a, and the engagement protrusion 12f is inserted in the engagement recessed part 2b, the engagement protrusion 12f will be caught by the engagement recessed part 2b. 12 does not rotate in the recessed part 2a.

Then, the support shaft 4 is inserted into the recess 5a on one side of the lid 5, and the rotor 13 of the rotary damper 11 is inserted into the recess 5a on the other side of the lid 5. In addition, the engagement protrusion 13i is inserted in the locking recess 5c, and the shaft 5b is fitted to the recess 13h.

When the cover 5 is supported by the support shaft 4 and the rotor 13 (rotation damper 11) in this manner, the cover 5 is vertically mounted with respect to the support shaft 4 and the rotor 13. Can rotate

If the rotor 13 is inserted into the recessed portion 5a and the engaging protrusion 13i is inserted into the locking recess 5c, the engaging protrusion 13i is caught in the locking recess 5c. The rotor 13 does not rotate in the recess 5a.

If the rotary damper 11 and the lid 5 are attached as described above, the holding force of the coil spring 16 is opened, that is, in the state that the coil spring 16 does not accumulate the holding force, As shown in FIG. 4, the locking recesses 2b and 5c to which the engagement protrusions 12f and 13i are engaged are positioned so that the center G of the lid 5 is located approximately on a perpendicular line of the axis of the support shaft 4. ) Is formed.

Subsequently, the operation will be described.

First, as shown in FIG. 4, when the cover 5 is opened and the center G of the cover 5 is located on the substantially perpendicular line of the axis line of the support shaft 4, the holding force of the coil spring 16 will become Since it is in an open state, the lid 5 can be stopped in an open state.

And in the state of FIG. 4, even if the cover 5 is rotated counterclockwise and closed, or if the cover 5 is rotated clockwise and opened more than the state of FIG. 4, the holding force to the coil spring 16 is carried out. In other words, even if the center G of the lid 5 is moved due to the rotation of the lid 5, the holding force is applied to the coil spring 16 as the center G of the lid 5 moves. Since it is possible to reduce the change in the braking force of the rotary damper 11, the change in the rotational speed of the lid 5 is reduced, so that the quality of the lid 5 can be maintained.

In the case of closing the cover 5 by rotating it counterclockwise in the state of FIG. 4, the cover 5 is rotated and closed in a state in which no force is accumulated in the coil spring 16. The holding force accumulated in the coil spring 16 in the state of closing (5) becomes much less than the conventional example.

Therefore, the lid 5 can be closed with good operability.

In addition, when the cover 5 is opened in the closed state, or the cover 5 is rotated counterclockwise in a state in which the cover 5 is opened more clockwise than the state of FIG. 4, the cover 5 is rotated in the state of FIG. 4. In the case of rotating, since the holding force is accumulated in the coil spring 16, the rotating force of the lid 5 can be assisted by the holding force of the coil spring 16.

In the state of FIG. 4, the cover 5 is rotated in a counterclockwise direction to close it, or the cover 5 is rotated in a clockwise direction to open more than the state of FIG. 4. Since the bearing force is accumulated, the braking of the lid 5 can be assisted by the coil spring 16.

In the above-described embodiment, an example in which the locking recesses 2b of the housing 2 and the locking recesses 5c of the lid 5 are formed one by one is shown. However, the locking recesses 2b and 5c are provided in plurality. The coil spring in a state where the center G of the lid 5 is positioned on a substantially vertical line of the axis of the support shaft 4 by selecting any one of the plurality of locking recesses 2b and 5c. It is good also as a structure which opens the holding force of (16).

Then, the coil spring 16 is assembled into the rotary damper 11, and the center G of the lid 5 is approximately perpendicular to the axis of the support shaft 4 in the state where the holding force of the coil spring 16 is opened. Although the example which located on the ship line is shown, the holding force is a state where the coil spring is set apart from the rotary damper 11, and the center G of the lid | cover 5 is located in the substantially perpendicular line of the support shaft 4 axis line. The same effect can be obtained also by fixing the one end of the coil spring which opened the to the housing 2 of the printer 1, and fixing the other end of the coil spring which opened the holding force to the cover 5.

In the case of attaching the coil spring in this manner, for example, a plurality of attachment holes and the like may be selected so as to be able to adjust the attachment position of the coil spring so that the coil spring can be attached under the above conditions.

In addition, although the example which used the carbon element 16 as the coil spring 16 was shown, if it can function similarly, for example, a carbon element, such as a spiral spring (flat spiral spring), may be sufficient.

In addition, although the example which used the rotary damper 11 as the support shaft of the lid | cover 5 was shown, it is a matter of course that it is good also as a structure which brakes the rotation of the lid | cover 5 through gears.

As described above, according to the present invention, in a state where the center of the cover is positioned on a substantially vertical line of the axis of the support shaft, one end of the finger member which has opened the finger force is fixed to the housing of the apparatus provided with the cover, Since the other end is fixed to the cover, it is possible to accumulate the force on the finger member even if the cover is rotated and closed or the cover is further opened by rotating the cover while the center of the cover is positioned approximately on a straight line along the axis of the support shaft. In other words, even if the center of the lid is moved by the rotation of the lid, since the force is accumulated in the finger member according to the movement of the lid, the braking force of the rotary damper can be reduced, so that the rotational speed of the lid is changed. It can be reduced to maintain the dignity of the cover rotation.

In addition, when the cover is rotated and closed while the center of the cover is positioned on the substantially vertical line of the axis of the support shaft, the cover is closed by rotating the cover in a state in which no force is accumulated in the finger member. The finger force accumulated in the finger member in the state becomes much smaller than in the prior art.

Therefore, the cover can be closed with good operability.

Further, when the cover is opened in the closed state, or in a state where the cover is more open than the state where the center of the cover is located on the approximately perpendicular line of the axis of the support shaft, the center of the cover is on the approximately perpendicular line of the axis of the support shaft. When the cover is rotated in the positioned position, since the force is accumulated in the finger member, the cover force can be assisted by the force of the finger member.

Furthermore, even if the cover is rotated and closed, or the cover is further opened by rotating the cover in a state where the center of the cover is located approximately on a straight line along the axis of the support shaft, the cover can be accumulated by the finger member because the finger force is accumulated. You can assist in braking.

And since the support member is provided in the rotation damper, since it is one component, component management becomes easy and assembly work becomes simple.

Claims (3)

In the braking structure of the cover for braking the rotation of the cover to rotate in the vertical direction with respect to the horizontally arranged support shaft by the viscous resistance of the viscous fluid in the rotary damper, With the center of the lid positioned approximately on a straight line along the axis of the support shaft, one end of the finger member which has opened the grip force is fixed to the housing of the mechanism having the lid, and the other end of the finger member is attached to the lid. Braking structure of the cover, characterized in that fixed. In the braking structure of the cover for braking the rotation of the cover to rotate in the vertical direction with respect to the horizontally arranged support shaft by the viscous resistance of the viscous fluid in the rotary damper, In the rotary damper, one end is fixed to the housing and the other end is fixed to the rotor, A braking structure for a lid, wherein the center of the lid is positioned on a substantially vertical line of the axis of the support shaft in a state in which the holding force of the finger member is opened. The method according to claim 1 or 2, A braking structure for a lid, wherein the stop member is a coil spring.