JP4411229B2 - Braking mechanism and movable body support mechanism - Google Patents

Description

  In the present invention, after being manually moved to a position exceeding the intermediate position, it is self-running to the second position by urging, and after being manually moved back to a position exceeding the intermediate position, it is attached to the first position. The present invention relates to a braking mechanism that applies braking to a self-running forward movement and a self-running backward movement of a movable body that is self-running by a force, and a movable body support mechanism that uses this mechanism.

  From the neutral state in which the rotation axis of the lid body rotatably supported by the main body, one end of the spring fixed to the main body side, and the other end of the spring fixed to the lid body are positioned on one straight line If the lid is moved in any direction to close it, the lid will be forcibly closed by the action of the spring, and if it is moved even slightly from this neutral state to open the lid, the lid will be forced by the action of the spring. There is a lid opening / closing support mechanism configured to open automatically. (See Patent Document 1)

However, in such a support mechanism, the forcible closing and opening of the lid are easy to be performed vigorously. By providing a damper device that always contacts a part of the lid and applies braking to the rotation of the lid, the forced closing and opening can be moderately reduced, If such a damper device is simply used, an unnecessary resistance is generated in the manual movement of the lid before the forced movement of the lid.
JP-A-8-156698

  The main problem to be solved by the present invention is that after being manually moved to a position exceeding the intermediate position, it is self-propelled by urging to the second position and manually moved back to a position exceeding the intermediate position. After that, the brake is applied only to the self-propelled forward movement and the self-propelled backward movement of the movable body that is self-propelled backward by energizing to the first position.

In order to solve the above problems, in the present invention, the braking mechanism has the following configurations (1) to (9).
(1) A movable body supported by the main body so as to be able to reciprocate between a first position and a second position, and is manually operated from the first position toward the second position and beyond the intermediate position of both positions. After being moved forward, it is self-propelled to the second position by urging, and after being manually moved back from the second position to the position exceeding the middle position of both positions, the first position A movable body braking mechanism that is self-propelled and rebounded by energization,
(2) a link portion provided on the movable body side;
(3) a rack forming body;
(4) a support portion that is provided on the main body side and supports the rack forming body;
(5) having a pinion that is provided on the main body side, always has a pinion that meshes with the rack of the rack forming body, and that is configured to apply braking to the rotation of the pinion;
(6) The rack forming body is formed with a through portion of the link portion extending long, and the rack forming body is supported by the support portion so as to be able to reciprocate in a direction substantially along the extending direction of the through portion.
(7) When the movable body is in the first position, the rack forming body is moved back and cut in a state where the link portion is abutted against one end of the through portion by the biasing force.
(8) When the movable body is in the second position, the rack forming body is moved forward and cut in a state where the link portion is abutted against the other end of the through portion by the biasing force.
(9) Moreover, the overall length of the through portion is made substantially equal to the moving distance of the link portion due to manual forward movement and manual backward movement of the movable body.

  When the movable body starts to be manually moved forward from the state where the movable body is in the first position toward the second position, the link portion located at one end of the through portion of the rack forming body which has been moved back is also moved. However, the rack forming body does not start the forward movement until the manual forward movement is completed, and therefore, the braking by the damper device can be prevented from being applied to the movement of the movable body in the manual forward movement. When this manual forward movement is completed, the link portion abuts against the other end of the through portion of the rack forming body, so that the rack forming body starts the forward movement by the self-running forward movement by the biasing, and this self-running forward movement is Until the process is completed, braking by the damper device can be applied to the movement of the movable body.

  In addition, when the movable body is manually moved backward toward the first position from the state where the movable body is in the second position, the link portion positioned at the other end of the through-hole of the rack forming body that has been moved forward is also provided. Although it is moved, the rack forming body does not start returning until the manual return is completed. Therefore, in this manual return, it is possible not to apply the braking by the damper device to the movement of the movable body. . When the manual backward movement is completed, the link part hits one end of the through part of the rack forming body, so that the rack forming body starts moving backward due to the self-running backward movement by the biasing, and the self-running backward movement is finished. In the meantime, braking by the damper device can be applied to the movement of the movable body.

The movable body is assembled to the main body so as to be rotatable with a rotation shaft,
Moreover, the urging force of the movable body is such that one end of the spring is stopped on the movable body side and the other end of the spring is stopped on the main body side, and at an intermediate position of the movable body, on an imaginary straight line passing through the other end of the spring and the rotating shaft. In some cases, one end of the spring is positioned substantially and a torsion coil spring is arranged so as to be most elastically deformed at this time.

  In this case, after manually moving the movable body from the first position to the second position to a position exceeding the intermediate position between the two positions, one end of the spring is directed to the second position rather than the virtual straight line. Therefore, the elastic restoring force of the movable body that has been most elastically deformed by the manual forward movement is changed to a force that rotates the movable body toward the second position. It is possible to convert and move the movable body to the second position. Further, after the movable body is manually moved backward from the second position toward the first position to a position exceeding the intermediate position between the two positions, one end of the spring is rotated toward the first position with respect to the virtual straight line. Therefore, the elastic restoring force of the movable body that has been most elastically deformed by this manual forward movement is converted into a force that rotates the movable body toward the first position. The movable body can be self-propelled to the first position. In addition, the movable body can be supported by the spring so that the movable body does not return to the second position at the first position and the movable body does not return to the first position at the second position. .

  The support portion is constituted by a cylindrical body formed in a rack forming body and entering a groove extending long along the reciprocating direction of the rack forming body and having a diameter substantially equal to the groove width of the groove. There is also.

  In such a case, the rack forming body can be sandwiched between the support portion and the pinion of the damper device so that the rack of the rack forming body can be properly meshed with the pinion at all times. It is also possible to allow the rack forming body to move while tilting by moving the movable body while maintaining proper meshing.

  If the above-described braking mechanism is provided on both sides of the movable body along the moving direction of the movable body and the virtual center line is sandwiched between them, the movable body support mechanism can be configured. A braking force can be applied to the both sides of the movable body against the forward movement and the self-running backward movement.

  According to the braking mechanism of the present invention, after being manually moved to a position exceeding the intermediate position, the self-propelled forward movement is performed by urging to the second position, and after being manually moved back to a position exceeding the intermediate position. Can apply braking to the self-propelled forward movement and the self-propelled backward movement of the movable body that is self-propelled and reciprocated by urging to the first position by the damper device. Since the rack of the rack forming body that is moved during the self-propelled forward movement and the self-propelled backward movement of the movable body is always engaged with the pinion of the damper device by the support portion, manual forward movement and manual backward movement are performed. In some cases, it is possible to ensure that the braking force is generated at the time of the self-running forward movement and the self-running backward movement while having a configuration in which the braking force is not generated. Further, the present invention can be applied to a movable body that is rotatably assembled to the main body and a movable body that is slidably assembled. Further, the damper device constituting such a mechanism has a feature that its installation position can be set with a high degree of freedom.

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

  1 and 3 to 5 show an opening formed in the right side portion of the main body 2 at the first position CL when the braking mechanism 5 according to the embodiment is rotatably assembled to the main body 2. FIG. 1 shows an example applied to braking of a lid 10 that closes 20 from the side 21 side adjacent to the opening 20 of the main body 2. FIG. 1 shows that the lid 10 (movable body 1) is the first one. FIG. 5 shows a state in which the lid 10 (movable body 1) is in the second position OP. FIG. 3 shows a state in which the lid 10 in the first position CL faces the second position OP. FIG. 4 shows how the lid 10 at the second position OP is manually moved backward toward the first position CL to reach the substantially intermediate position N. Each of them is shown. FIG. 5 shows a state in which the braking mechanisms 5 are provided on both sides of the main body 2 as viewed from below the main body 2 in the state of FIG.

  A braking mechanism 5 according to this embodiment is a movable body 1 that is supported by a main body 2 so as to be able to reciprocate between a first position CL and a second position OP. After being manually moved to the position that exceeds the intermediate position N between the two positions CL and OP toward the OP, it is self-propelled to the second position OP and is moved from the second position OP to the first position CL. The self-propelled forward movement and the self-propelled backward movement of the movable body 1 which is self-propelled and reciprocated by urging to the first position CL after being manually reciprocated to a position exceeding the intermediate position N between the positions CL and OP Is applied with braking.

  As the movable body 1, a drawer in a drawer device, a lid that closes the openings 20 of various storage boxes, and the like are planned.

  In the illustrated example, the movable body 1 is a lid body 10 assembled to the main body 2 so as to close the opening 20 of the main body 2 having the opening 20 on one side at the first position CL.

  In the illustrated example, the movable body 1 is assembled to the main body 2 so as to be rotatable with a rotation shaft 3. Specifically, in the illustrated example, the movable body 1 has a plate shape that closes the opening 20 by pressing the back surface 10a against the opening 20 at the first position CL, and has an upper end at the first position CL. The portion 10b is assembled to the main body 2 so as to be rotatable by the rotation shaft 3. In the example shown in the drawing, the movable body 1 is centered on the rotation shaft 3 and the end portion that has become the lower end portion 10c at the first position CL is higher than the level of the rotation shaft 3 at the second position OP. The opening 20 is opened by being positioned at the position.

  In the illustrated example, the urging force of the movable body 1 is such that the spring one end 40 is stopped on the movable body 1 side and the spring other end 41 is stopped on the main body 2 side. One end of the spring 40 is substantially positioned on an imaginary straight line x passing through the end 41 and the rotation shaft 3 and is made by the torsion coil spring 4 arranged so as to be most elastically deformed at this time. .

  Specifically, in the illustrated example, the arm 11 formed in a curved shape along an arc of a virtual circle centered on the rotation shaft 3 of the movable body 1 has the arm front end as the movable body 1. Here, the movable body 1 is provided in a state of being integrally connected to the back surface 10 a of the lid body 10. The arm 11 is positioned outside the side portion 21 adjacent to the opening 20 of the main body 2. In the illustrated example, one end 40 of the spring that forms the pin shape of the spring is inserted into a hole 11b formed in the arm rear end 11a of the arm 11, and a spring that forms a loop of the spring. When the other end 41 is located almost directly below the rotation shaft 3, the spring support portion 22 is fixed to the cylindrical spring support portion 22 formed on the outer surface portion of the side portion 21 of the main body 2 so as to be accommodated in the loop. It has been. In the illustrated example, this spring is placed in a state where it is least elastically deformed when the movable body 1 is at the first position CL and when it is at the second position OP. (FIG. 1, FIG. 5 / That is, the space | interval between the spring one end 40 and the spring other end 41 is made the widest.)

  Accordingly, in the illustrated example, after the movable body 1 is manually moved from the first position CL toward the second position OP to a position exceeding the intermediate position N between the positions CL and OP, the spring end 40 is moved to the virtual position. Since the movable body 1 that is rotated toward the second position OP from the straight line x is positioned on the moving front side (right side in FIG. 3) of the movable body 1 that is most elastically deformed by this manual forward movement. The elastic restoring force can be converted into a force for rotating the movable body 1 toward the second position OP, and the movable body 1 can be moved forward to the second position OP. Further, after the movable body 1 is manually moved back from the second position OP toward the first position CL to a position exceeding the intermediate position N between the positions CL and OP, the spring end 40 is more than the virtual straight line x. Since the movable body 1 that is rotated toward the first position CL is positioned on the moving front side (left side in FIG. 4), the elastic return force of the movable body 1 that is most elastically deformed by the manual forward movement is movable. The movable body 1 can be self-propelled to the first position CL by converting the body 1 into a force for rotating the body 1 toward the first position CL. Further, the movable body 1 is moved by the spring 4 so that the movable body 1 does not return to the second position OP at the first position CL and the movable body 1 does not return to the first position CL at the second position OP. 1 can be supported respectively.

The braking mechanism 5 is
A link unit 50 provided on the movable body 1 side;
A rack forming body 51;
A support portion 52 provided on the main body 2 side to support the rack forming body 51;
It has a pinion 53a that is provided on the main body 2 side, always meshes with the rack 51a of the rack forming body 51, and a damper device 53 configured to apply braking to the rotation of the pinion 53a. .

  In the illustrated example, the link portion 50 is formed at the arm rear end 11 a of the arm 11. The link part 50 prevents the bolt 50a passed through the bolt through hole formed in the arm rear end 11a of the arm 11 from coming out of the through part 51b of the rack forming body 51, which will be described later. The sleeve intermediate portion is configured to be screwed to the sleeve-like body 50b. The axes of the bolt 50a and the sleeve-like body 50b are parallel to the axis of the rotating shaft 3.

  The rack forming body 51 is formed with a through portion 51b of a link portion 50 extending long, and the rack forming body 51 is supported by a support portion 52 so as to be able to reciprocate in a direction substantially along the extending direction of the through portion 51b. Yes.

  In the illustrated example, the rack forming body 51 is configured to have an elongated plate shape with one plate surface facing the outer surface 21 a of the side portion 21 of the main body 2. The through portion 51b is configured as a groove-like through hole extending long along the length direction of the rack forming body 51, and is formed on the front side of the position substantially in the middle of the rack forming body 51 in the length direction. Has been. The groove width of the through portion 51b is made substantially equal to the outer diameter of the sleeve-like body 50b.

  Further, in the illustrated example, the support portion 52 is a groove 51 e formed in the rack forming body 51 and extending long along the length direction of the rack forming body 51, that is, the reciprocating direction y of the rack forming body 51. It is constituted by a cylindrical body 52a having a diameter substantially equal to the width of the groove 51e of the groove 51e.

  In the example shown in the drawing, the groove 51e is formed on the rear side of the rack forming body 51 in the middle of the length direction. In the illustrated example, the total length of the groove 51e is substantially equal to the movement distance of the rack forming body 51 in the forward movement and the backward movement. The axis of the cylindrical body 52 a is also parallel to the axis of the rotation shaft 3.

  In the example shown in the figure, since the support portion 52 is constituted by a cylindrical body 52a having a diameter substantially equal to the groove width of the groove 51e, a rack is formed between the support portion 52 and the pinion 53a of the damper device 53. The rack 51a of the rack forming body 51 can always be properly engaged with the pinion 53a so as to sandwich the body 51, and the rack forming body can be moved by moving the movable body 1 while maintaining such engagement. It is also possible to allow 51 to move while tilting.

  In the illustrated example, the damper device 53 is rotatably supported by the case 53b around a disc-shaped case 53b and a rotation axis in a direction perpendicular to one surface of the case 53b on one side of the case 53b. And a pinion 53a. The pinion 53a has an internal portion (not shown) housed in the case 53b, and a viscous fluid such as silicon oil sealed in the case 53b acts on the internal portion to give resistance to the rotation of the pinion 53a. ing. In the illustrated example, ear portions 53c having screw through holes 53d are formed on both sides in the diameter direction of the case 53b, and the damper device 53 uses the through holes 53d of the ear portions 53c to tighten screws. By being fixed to the side portion 21 of the main body 2, the outer surface 21 a of the side portion 21 of the main body 2 is provided.

In this embodiment, when the movable body 1 is at the first position CL, the urging force causes the link portion 50 to abut against one end (the rear end 51c in the illustrated example) of the through portion 51b. In this state, the rack forming body 51 is moved back and cut (in the illustrated example, the rack forming body 51 is located at the rearmost position).
When the movable body 1 is in the second position OP, the rack forming body 51 moves forward with the link portion 50 abutting against the other end (the front end 51d in the illustrated example) of the through portion 51b by the biasing. (In the illustrated example, the rack forming body 51 is located in the foremost position)
In addition, the entire length of the through portion 51b is set to be substantially equal to the moving distance of the link portion 50 by the manual forward movement and the manual backward movement of the movable body 1.

  As a result, according to the braking mechanism 5 according to this embodiment, when the movable body 1 starts to manually move toward the second position OP from the state where the movable body 1 is at the first position CL, the brake mechanism 5 is completely moved back. The link part 50 located at one end (rear end 51c) of the through part 51b of the rack forming body 51 is also moved, but the rack forming body 51 does not start the forward movement until the manual forward movement is completed. Therefore, in this manual forward movement, it is possible not to apply the braking by the damper device 53 to the movement of the movable body 1. When this manual forward movement is completed, the link portion 50 abuts against the other end (front end 51d) of the through-hole 51b of the rack formation body 51, so that the rack formation body 51 starts the forward movement by the self-running forward movement by the biasing. And until this self-propelled forward movement is completed, braking by the damper device 53 can be applied to the movement of the movable body 1.

  Further, when the movable body 1 is manually moved backward toward the first position CL from the state where the movable body 1 is at the second position OP, the other end of the passing portion 51b of the rack forming body 51 that has been moved forward ( The link portion 50 located at the front end 51d) is also moved, but the rack forming body 51 does not start returning until the manual backward movement is finished, and therefore the movable body 1 is moved in this manual backward movement. The braking by the damper device 53 can be prevented from being applied. When this manual return is completed, the link portion 50 abuts against one end (rear end 51c) of the through portion 51b of the rack forming body 51, so that the rack forming body 51 starts returning due to the self-running backward movement due to the biasing. Then, the braking by the damper device 53 can be applied to the movement of the movable body 1 until the self-running backward movement is completed.

  As shown in FIG. 2, the above-described braking mechanism 5 is provided on both sides of the movable body 1 along the virtual center line z along the moving direction of the movable body 1 so that the movable body 1 is provided. If one support mechanism is configured, a braking force can be applied to the both sides of the movable body 1 with respect to the self-running forward movement and the self-running backward movement of the movable body 1.

Side structure diagram showing an application example of the braking mechanism 5 Bottom view Side structure diagram showing an application example of the braking mechanism 5 Side structure diagram showing an application example of the braking mechanism 5 Side structure diagram showing an application example of the braking mechanism 5

Explanation of symbols

CL 1st position OP 2nd position N Intermediate position 1 Movable body 2 Main body 3 Rotating shaft 5 Braking mechanism 50 Link part 51 Rack forming body 51a Rack 51b Through part 52 Support part 53 Damper device 53a Pinion

Claims (4)

A movable body that is supported by the main body so as to be able to reciprocate between the first position and the second position, and is manually moved from the first position toward the second position beyond the intermediate position of both positions. After that, it is self-propelled by urging to the second position, and is urged to the first position after being manually moved back from the second position to the position exceeding the intermediate position of both positions. A movable body braking mechanism that is self-running by
A link part provided on the movable body side;
A rack forming body;
A support portion provided on the main body side for supporting the rack forming body;
A damper device that is provided on the main body side, has a pinion that always meshes with the rack of the rack forming body, and is configured to apply braking to the rotation of the pinion;
The rack forming body is formed with a through portion of the link portion extending long, and the rack forming body is supported by the support portion so as to be able to reciprocate in a direction substantially along the extending direction of the through portion,
When the movable body is in the first position, the rack forming body is moved back and cut in a state in which the link portion is abutted against one end of the through portion by the biasing,
When the movable body is in the second position, the rack forming body is moved forward and cut in a state where the link portion is abutted against the other end of the through portion by the biasing,
Moreover, the braking mechanism is characterized in that the total length of the through portion is substantially equal to the moving distance of the link portion by manual forward movement and manual backward movement of the movable body. The movable body is assembled to the main body so as to be rotatable with a rotation shaft.
Moreover, the urging force of the movable body is such that one end of the spring is stopped on the movable body side and the other end of the spring is stopped on the main body side, and at an intermediate position of the movable body, on an imaginary straight line passing through the other end of the spring and the rotating shaft. 2. The braking mechanism according to claim 1, wherein one end of the spring is substantially positioned and a torsion coil spring is arranged so as to be most elastically deformed at this time.   The support portion is constituted by a cylindrical body formed in the rack forming body and entering a groove extending long along the reciprocating direction of the rack forming body and having a diameter substantially equal to the groove width of the groove. The braking mechanism according to claim 1 or 2, characterized in that   A braking mechanism according to any one of claims 1 to 3 is provided on each side of the movable body along the moving direction of the movable body with the virtual center line interposed therebetween. Support mechanism for movable bodies.

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