JP2009066256A - Brake device and drawer apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a brake device 3 of a movable body 2 installed without executing a strict positioning, and a drawer apparatus having the same. <P>SOLUTION: This brake gear includes an abutment body 30 abutting on a portion 2c on which the abutment body abuts which is provided in the movable body 2 at a predetermined reciprocating position of the movable body 2 and moving accompanied with the reciprocation of the movable body 2 after the abutment, a damper member 31 for applying a brake force to the movement of the damper movable portion 312, and a linkage body 32 moving with the movement of the abutment body 30 to move the damper movable portion 312. The portion 2c and the abutment body 30 are configured to be mutually attracted by a magnetic force. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a braking device for slowly moving various movable bodies supported movably on a fixed body first from a predetermined forward movement position, and an improvement of a drawer using the same.

  When the drawer is closed and the drawer rail is moved rearward, the driver pin provided on the drawer side is captured, and the drawer is completely retracted by the carriage that moves rearward by the urging of the elastic body. Japanese Patent Application Laid-Open No. H10-228707 discloses a braking force acting on the movement of the carriage by a fluid buffer device.

However, in the device disclosed in Patent Document 1, it is necessary to accurately align the drive pins when they are provided so that the drive pin is captured by the carriage at a predetermined push-in position. Further, even if the alignment is performed in this manner, the position of the driving body pin may be lowered depending on the amount of the drawer loaded, and the driving body pin may not be properly captured by the carriage at a predetermined pushing position. .
Special table 2006-506132 gazette

  The main problem to be solved by the present invention is to provide a braking device for a movable body that can be installed without strict alignment as in the prior art, and a drawer device having the same.

In order to achieve the above object, in the present invention, the braking device has the following configurations (1) to (5).
(1) The abutted portion provided on one of the fixed body and the movable body movably supported by the fixed body is abutted at a predetermined forward movement position of the movable body, and this abutment A contact body that is moved by the forward movement of the subsequent movable body;
(2) a damper member for applying a braking force to the movable movable part of the damper;
(3) a linkage that moves with the movement of the abutment and moves the damper movable part;
(4) It has a casing that incorporates these into a unit,
(5) Moreover, the contacted portion and the contact body are attracted by magnetic force.

  According to such a configuration, it is only necessary that the abutted portion is attracted to the abutting body by a magnetic force, and the movement of the movable body can be performed in a predetermined direction without strict alignment between the two. It is possible to slow down from the moving position. In addition, since the abutted part and the abutting body are attracted by magnetic force, the support body is returned to the position before the movement along with the return of the movable body, and the linkage body and the damper are accordingly accompanied. The damper movable part of the member can also be returned to the position before the operation to prepare for the next forward movement of the movable body. Since the attraction is due to magnetic force, the attraction is released at a predetermined forward movement position, and the return movement of the movable body is not hindered. The abutment body, the damper member, and the link body are unitized by the casing, and can be used for braking various movable bodies as long as there is a space in which the casing can be attached.

  If the damper member and the linkage body are arranged in parallel in a direction orthogonal to the moving direction of the movable body, the braking device can be installed with a minimum installation space.

  If the damper member is a damper movable part that moves the piston or cylinder in the direction along the moving direction of the movable body, and this piston or cylinder is connected to the linkage body, the damper member makes contact with the forward movement of the movable body. The damper movable portion can be moved through the body and the linkage body to apply the braking force of the piston damper to the movable body.

  If the guide means for guiding the movement of the linkage body in the direction along the moving direction of the movable body is provided, the linkage body is regularly moved in the direction along the movement direction of the movable body by the movement of the contact body. The damper movable part of the damper member can be moved.

  Further, if the direction or position of the contact surface of the contact body can be varied within a certain range, the contacted portion and the contact body when the contact body hits the contacted portion. Even if the contact surface does not face the intended orientation, this can be corrected so that both are properly adsorbed.

  If the drawer is configured by attaching the braking device to the drawer cabinet so that the abutting body abuts against the back end of the drawer when the drawer is pushed, The drawer can be quietly closed.

  According to the braking device of the present invention, since the contacted portion only needs to be attracted by the contact body and magnetic force, the movable body can be obtained without strict alignment between the both. Can be slowly moved forward from a predetermined forward movement position.

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

  Here, FIGS. 1 to 3 respectively show the main parts of the drawer device provided with the braking device 3 according to the embodiment. In particular, FIG. 1 shows the contact body 30 of the braking device 3 in the standby position. The state immediately after the back end 2b of the drawer 2a hits (or the contact body 30 adsorbed to the back end 2b moves away from the back end 2b when the drawer 2a moves backward (drawing operation). 2 shows the state when the drawer 2a is pushed in from the state shown in FIG. 1, and FIG. 3 shows the state where the braking device 3 is viewed from the front. 4 to 10 show such a braking device 3, respectively.

  The braking device 3 according to this embodiment is configured to slowly move the various movable bodies 2 supported by the fixed body 1 movably from the predetermined forward movement position.

  The braking device 3 is attached to the cabinet 1a constituting the drawer device, and when the drawer 2a constituting the drawer device is pushed in, the contact body 30 described later uses the back end 2b of the drawer 2a as the contacted portion 2c. If it is made to contact, this drawer 2a can be made quiet.

  The braking device 3 includes a contact body 30, a damper member 31, and a linkage body 32. These are incorporated into the casing 33 and unitized. In the illustrated example, the casing 33 is configured to have wide both sides 331 and 332, and one side of the casing 33 is attached to the inner part 1 b of the cabinet 1 a constituting the drawer device with the mounting surface 331 as one side. In the figure, reference numeral 333 indicates a through hole for a screw for the attachment. In the illustrated example, the casing 33 is attached so as to be positioned below the support rail 1c of the drawer 2a on the back side of the drawer housing portion of the cabinet 1a. A contact body 30 to be described later is arranged so as to protrude inward from the other surface 332 side of the casing 33, and immediately before the drawer 2a is fully pushed in, the back end 2b of the drawer 2a abuts against the contact body 30 from the front. It has become. (FIG. 1) Due to this contact, the contact body 30 is moved rearward (left side in FIG. 1) together until the drawer 2a is pushed in, and the rearward movement is applied with a braking force by the damper member 31 and pulled out. 2a is quiet. (FIG. 2) The braking device 3 may be attached to the left and right inner portions 1b across the drawer 2a in the cabinet 1a. In this case, the arrangement of each member in the braking device 3 attached to the right side is symmetric with respect to the arrangement of the members in the braking device 3 attached to the left side of the cabinet 1a.

  In this embodiment, the contact body 30 is a contacted portion 2c (the back end portion) provided on the drawer 2a as the movable body 2 supported movably by the cabinet 1a as the fixed body 1. 2b) is brought into contact with the movable body 2 at a predetermined forward movement position, and is moved by the forward movement of the movable body 2 after the contact. In the illustrated example, the contact body 30 is provided at the rear end 321 of the linkage body 32 so as to be integrated with the linkage body 32. The casing 33 has a configuration in which a long space before and after being formed between one surface (attachment surface 331) and the other surface 332 is roughly divided into two vertically by a partition portion 334. The linkage body 32 has a long and narrow plate shape in the front-rear direction, and is housed in a space 334 a on the upper side of the casing 33 so as to be movable back and forth. The contact body 30 is integrally provided at the rear end 321. A long open part 335 is formed on the other surface 332 at the rear end side of the casing 33, and the contact body 30 is directed from the other surface 332 side of the casing 33 toward the inside of the cabinet 1a through the open part 335. It is arranged to stick out. When the drawer 2a is pulled out, the contact body 30 is positioned at a standby position located in front of the opening 335. (Figure 1)

  In the illustrated example, the contact body 30 is configured by combining a cylindrical body 301 having a cylindrical axis line along the front-rear direction, a disk-shaped permanent magnet 302, and an annular cushion body 303. The cylinder front end of the cylindrical body 301 is closed by a plate portion 301b formed in the center with an I-shaped split groove 301a. The outer surface of the plate portion 301b functions as an abutting surface 301c that abuts against the inner end 2b of the drawer 2a. The permanent magnet 302 is inserted into the cylindrical body 301 from the opened rear end of the cylindrical body 301 to a position where the magnetic pole face 302a is in contact with the plate portion 301b with the first magnetic pole face 302a first. The insertion state is formed at the side portion of the cylindrical body 301 that is elastically deformed outward once in the insertion process, and is elastically restored at the insertion position to be engaged with the other magnetic pole surface 302b of the permanent magnet 302. The elastic engagement piece 301d is maintained. The cushion body 303 is fitted to an edge between the contact surface 301c and the side portion of the cylindrical body 301, and the contact surface 301c is edged by the cushion body 303. The cushion body 303 is made of rubber or plastic having rubber-like elasticity. The cushion body 303 is provided with a plurality of convex portions 303a that protrudes slightly forward from the contact surface 301c with a substantially equal interval between the convex portions 303a adjacent to each other in the circumferential direction. The cushion body 303 prevents the abutting sound between the back end 2b and the abutting body 30 from being generated, and the movable body 2 composed of the abutting surface 301c and the magnetic material by the magnetic force of the permanent magnet 302. The rear end 2b of the drawer 2a as the contacted portion 2c is not excessively adsorbed.

  The damper member 31 includes a damper movable part 312 and applies a braking force to the movement of the damper movable part 312.

  In the illustrated example, the damper member 31 is configured as a piston damper 311 in which a piston (not shown) is moved as a damper movable portion 312 that is movable in a direction along the moving direction of the movable body 2 and the piston is connected to the linkage body 32. ing. The piston damper 311 includes a cylinder 311a having a central axis line in the front-rear direction, and a piston rod 311b that is connected to a piston (not shown) housed in the cylinder 311a and protrudes forward from the front end of the cylinder 311a. In the illustrated example, the cylinder 311a is positioned on the rear side using the fitting opening 336 of the piston damper 311 that communicates with the lower space 334b of the casing 33 and is opened to the mounting surface 331 side. The piston damper 311 is fitted, and the cylinder 311 a is fixed to the casing 33. A slider 311c is attached to the protruding end of the piston rod 311b. The slider 311c has a plate shape that is long in the front-rear direction and includes ribs 311d along the axis of the piston rod 311b. The slider 311 c has its rib 311 d slidably inserted from the inside of the casing 33 into the insertion groove 336 a of the piston rod 311 b in the fitting opening 336 on the mounting surface 331 side of the casing 33, and the other surface 332 of the casing 33. On the side, the guide groove 332b formed on the other surface 332 side is slidably inserted from the inside of the casing 33, and is supported by the casing 33 so as to be slid and moved along the movement axis of the piston without looseness. ing. If a piston damper 311 having a large resistance acting only on the pushing-in of the piston is used, as will be described later, the abutting body 30 is moved to the standby position following the magnetic force when the drawer 2a is pulled out. This movement can be prevented from hindering the drawer operation. Further, the piston damper 311 may have a built-in spring or the like for returning the piston to the position before the piston is pushed when the piston is released. Resistance can be imparted to the piston by the action of viscous fluid or air sealed in the cylinder. One typical method for this purpose is to provide resistance to the movement of the piston by providing an orifice in the piston so that viscous fluid is moved only through the orifice when the piston is pushed in. it can. Separately from the illustrated example, the piston rod 311b is fixed to the casing 33 and the cylinder 311a is not fixed to the casing 33. When the contacted portion 2c of the movable body 2 comes into contact with the contact body 30, the linkage is established. The cylinder 311a may be moved backward through the body 32 so that the piston is relatively pushed into the cylinder 311a.

  The linkage body 32 has its front end 322 branched to the left and right. A shaft portion 322b is installed between the inner surfaces of the pair of branch plates 322a and 322a. On the other hand, a protrusion 311e protruding upward from a communicating portion 337 between the upper space 334a of the casing 33 and the lower space 334b of the casing 33 is formed on the upper portion of the slider 311c. A concave portion 311f for fitting the shaft portion 322b to be rotatable is formed, and the linkage body 32 is fitted to the damper member 31 via the slider 311c on the front end portion 322 side by fitting the shaft portion 322b to the concave portion 311f. It is connected.

  In the standby position of the contact body 30, the slider 311 c is located at the foremost position, and the piston rod 311 b is most protruded from the cylinder. (FIG. 1) When the rear end 2b of the drawer 2a is brought into contact with the contact body 30 and moved rearward, the linkage body 32 is also moved rearward. Accordingly, the piston rod 311b is moved to the cylinder via the slider 311c. The braking force of the damper member 31 is pushed into 311a and acts on the drawer 2a. (FIG. 2) When the drawn-out drawer 2a is pulled out, the contact body 30 is attracted to the back end 2b of the drawer 2a by a magnetic force, so the contact body 30 is forcibly moved to the standby position. It is positioned at the standby position until the drawer 2a is pushed again, and the linkage 32 is also moved forward, so that the piston rod 311b returns to the state where it is most protruded from the cylinder. (Figure 1)

  In this embodiment, the damper member 31 and the linkage body 32 are arranged in parallel in the vertical direction in the direction y orthogonal to the moving direction x of the movable body 2.

  Specifically, the casing 33 causes the linkage body 32 to be disposed above the piston damper 311, and the piston of the piston damper 311 is pushed by the rearward movement of the linkage body 32 thus arranged. Yes.

  As a result, in this embodiment, the braking device 3 can be installed with a minimum installation space on the side of the movable body 2 moved in the front-rear direction. (Figure 3)

 The casing 33 is provided with guide means for guiding the movement of the linkage body 32 in a direction along the movement direction x of the movable body 2.

  In the illustrated example, the linkage body 32 is housed in a space 334 a on the upper side of the casing 33 between a plate portion 331 a constituting the attachment surface 331 and a plate portion 332 a constituting the other surface 332. Further, a plate portion 331a constituting a mounting surface 331 at a position where the opening portion 335 of the contact body 30 is formed by a groove portion 338 in which the protrusion portion 321a formed at the rear end portion 321 of the linkage body 32 is slidable in the front-rear direction. It is formed on the inner surface. Further, the top portion 339 of the casing 33 is formed with a long split groove 339a in the front-rear direction for accommodating a long projecting piece 321b projecting upward from the rear end portion 321 of the linkage body 32.

  Accordingly, in the example shown in the drawing, the movable body 32 of the damper member 31 can be moved by regularly moving the linkage body 32 in the direction along the moving direction x of the movable body 2 by the movement of the contact body 30.

  Further, the direction or position of the contact surface 301c of the contact body 30 can be varied within a certain range.

  In the illustrated example, the front end portion 322 of the linkage body 32 is rotatably combined by a shaft portion 322b whose axis is aligned in the left-right direction with respect to the slider 311c, and the groove width of the groove portion 338 is the protrusion 321a. The width of the split groove 339a is also slightly larger than the thickness of the protruding piece 321b on the rear end side of the casing 33. Accordingly, in the illustrated example, the linkage body 32 is slightly movable up and down around the front end portion 322 side, and the angle of the contact surface 301c of the contact body 30 with respect to the vertical line is changed. Is allowed, and the position of the contact surface 301c in the left-right direction is allowed to change.

  Thereby, in the example shown in the figure, when the contact body 30 hits the contacted portion 2c, even if the contacted portion 2c and the contact surface 301c of the contact body 30 do not face each other in the intended direction, This can be corrected so that both are properly adsorbed.

  Apart from the illustrated example, the contact body 30 itself is provided with a structure for supporting the contact surface 301c with play in the front-rear direction, or the linkage body 32 and the slider 311c are connected with play in the front-rear direction. By matching, the position of the contact surface 301c in the front-rear direction can also be varied within a certain range.

Side view of essential parts of drawer device Side view of essential parts of drawer device Front view of main part of drawer device Side view of braking device 3 (mounting surface 331 side) Plan view Part A enlarged view in FIG. BB sectional view in FIG. CC sectional view in FIG. DD sectional view in FIG. EE sectional view in FIG.

Explanation of symbols

1 fixed body 2 movable body 2c contacted part
DESCRIPTION OF SYMBOLS 3 Braking device 30 Contact body 31 Damper member 312 Damper movable part 32 Linking body

Claims (6)

The abutted portion provided on one of the fixed body and the movable body movably supported by the fixed body is brought into contact with the movable body at a predetermined forward movement position, and the movable portion after the contact is made. A contact body that is moved by the forward movement of the body,
A damper member for applying a braking force to the movable movable part of the damper;
A linkage that moves with the movement of the abutting body and moves the movable part of the damper;
With a casing that incorporates these into a unit,
Moreover, the braking device is characterized in that the abutted portion and the abutting body are attracted by a magnetic force.   The braking device according to claim 1, wherein the damper member and the linkage body are arranged in parallel in a direction orthogonal to the moving direction of the movable body.   2. The damper member according to claim 1, wherein the damper member is a piston damper in which the piston or cylinder is moved in a direction along the moving direction of the movable body, and the piston or cylinder is connected to the linkage body. Braking device.   The braking device according to claim 1, further comprising guide means for guiding movement of the linkage body in a direction along a moving direction of the movable body.   The braking device according to any one of claims 1 to 4, wherein a change in the direction or position of the contact surface of the contact body is allowed within a certain range.   The brake device according to any one of claims 1 to 5, wherein the abutment body is brought into contact with the rear end portion of the drawer as a contacted portion when the drawer is pushed in. A drawer device characterized by being attached to a cabinet.

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