JP6094757B2 - Finger pinching prevention device and cabinet equipped with finger pinching prevention device - Google Patents

Description

  The present invention relates to a finger pinching prevention device for a door, a cabinet using the device, and the like.

  Devices for preventing finger pinching of doors are generally known. The finger pinching prevention device plays a role of preventing a finger from being pinched between the door and the frame when the door is closed. For example, Patent Literature 1 discloses a shock absorber as a finger pinching prevention device. The shock absorber includes a rotating body that is fixed at a position that meshes with the end of the door opposite to the hinge. The rotating body rotates around the vertical guide piece. A front piece positioned on the front side in the forward direction of the door when the door is closed and a rear piece positioned on the rear side in the forward direction of the door are formed on the end surface of the door.

  When the end of the door approaches the frame in accordance with the closing operation of the door, the end of the door comes into contact with the first piece of the rotating body. The closing operation of the door causes the rotating body to rotate against the spring force. When the door reaches the pause position, the first piece of the rotating body is released from contact with the front piece of the door. At the same time, the second piece of the rotating body meshes with the rear piece of the door. The door closing operation is temporarily stopped according to this engagement.

JP 2003-286787 A JP-A-7-286473

  In the above-described shock absorber, when the first piece of the rotating body is released from contact with the front piece of the door, a rotating force acts on the rotating body according to the spring force. Therefore, if the moving speed of the second piece of the rotating body according to the rotational force is faster than the speed of the door closing operation, the second piece of the rotating body cannot be engaged with the rear piece of the door. The door closes without pausing. In addition, when the above-described shock absorber is attached to a cabinet such as a computer rack, the shock absorber protrudes outside the cabinet, and the installation space of the cabinet increases.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to realize a finger pinching prevention device that can surely stop the door closing operation.

  In order to solve the above-described problems and achieve the object, a finger pinching prevention device according to claim 1 of the present invention is a frame or a door connected to the frame so as to be opened and closed in a horizontal direction by a hinge. A guide piece unit having a guide piece fixed to one side and movable in a horizontal direction along a straight line, and fixed to the other of the frame or the door, and on the horizontal plane as the door opens and closes. A guide member formed with a guide groove for guiding the movement of the guide piece; and a driving force applying mechanism for applying a driving force for driving the guide piece. The guide groove includes a main groove, an auxiliary groove, and a connection groove. The main groove is formed so that one end facing the frame body or the door is opened on a circumference centered on an axis corresponding to an axis of the hinge, and the auxiliary groove is formed of the main groove. Radially outward with the axis as the center relative to the groove And the other end of the auxiliary groove and the main groove are formed such that one end facing the frame body or the door is open and the other end is closed on the circumference. When the door is closed, the guide piece is introduced into the auxiliary groove at the position of the open end of the auxiliary groove by the driving force applying mechanism. As the door closes, the auxiliary groove comes into contact with the other closed end and stops once, and is moved to the connection groove by the driving force applying mechanism.

  Further, the finger pinching prevention device according to claim 2 of the present invention is the above-described claim 1, wherein when the door is closed, the guide piece moves to the connection groove and then the door is moved in the opening direction once. The guide piece is moved from the connection groove to the main groove by the driving force applying mechanism.

  According to a third aspect of the present invention, there is provided the finger pinching prevention device according to the first or second aspect, wherein the driving force applying mechanism is configured such that the driving force applying mechanism is moved from the axial center of the hinge to the main groove. The guide from the first position located at a distance to one end to the second position located at a distance from the axial center of the hinge to the one end of the auxiliary groove along the one straight line in the horizontal direction. A driving force for driving the piece is provided.

  According to a fourth aspect of the present invention, in the finger pinching prevention device according to the third aspect, the driving force applying mechanism has a first connecting shaft and a second connecting shaft that open at a predetermined angle when no load is applied. A torsion spring that generates torque between the first connecting shaft and the second connecting shaft around a vertical axis that is connected to the guide piece by the first connecting shaft and is fixed to the frame; When the guide piece, which is rotatably attached to the frame body and is connected to the second connecting shaft of the torsion spring, moves in the main groove, a force for bringing the guide piece close to the axial center side of the hinge is provided. A drive plate whose posture changes between a first posture that is generated by the torsion spring and a second posture that is generated by the torsion spring that holds the guide piece in the second position, and is coupled to the drive plate And holding the drive plate in the second posture An elastic member that exerts an elastic force, and is formed on the guide member so that when the guide piece is guided to the guide groove, it acts on the drive plate and resists the elastic force. And a driving cam for transmitting a driving force for driving the motor to the first posture to the driving plate.

  Moreover, the cabinet which concerns on Claim 5 of this invention was equipped with the finger pinching prevention apparatus in any one of Claim 1 thru | or 4 mentioned above, It is characterized by the above-mentioned.

  As described above, according to the aspect of the present invention, when the door is closed, the temporary stop can be surely performed before the door is closed, and it can be installed in the cabinet, so that the installation space of the cabinet is not increased. It has an effect of becoming dull.

1 is a perspective view schematically showing an external appearance of an electronic device apparatus, that is, a rack type server computer. It is a perspective view which shows roughly the external appearance of a server computer at the time of opening of a door. It is an expansion partial perspective view showing roughly the finger pinching prevention device concerning one embodiment of the present invention at the time of opening of a door. It is an expansion exploded perspective view of a finger pinching prevention device. It is an enlarged plan view which shows the front end surface of a guide piece roughly. FIG. 5 is an enlarged exploded perspective view of the finger pinching prevention device observed from an angle different from that in FIG. 4. FIG. 3 is a partially transparent enlarged plan view schematically showing a first posture of a drive plate. It is a partial see-through enlarged plan view schematically showing the second posture of the drive plate. It is a partial see-through enlarged plan view schematically showing the opening operation of the door. It is a partial see-through enlarged plan view schematically showing the opening operation of the door. It is a partial see-through enlarged plan view schematically showing the opening operation of the door. It is a partial see-through enlarged plan view schematically showing the closing operation of the door. It is a partial see-through enlarged plan view schematically showing the closing operation of the door. It is a partial see-through enlarged plan view schematically showing a temporary stop of the door closing operation. It is a partially transparent enlarged plan view which shows roughly the opening operation | movement of the door after a temporary stop. It is a partially transparent enlarged plan view which shows roughly the opening operation | movement of the door after a temporary stop. It is a partially transparent enlarged plan view which shows roughly the opening operation | movement of the door after a temporary stop. It is a partial see-through enlarged plan view schematically showing the door closing operation after a temporary stop.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 schematically shows an external appearance of an electronic apparatus device, that is, a server computer 11. The server computer 11 includes a rack (cabinet) 12. The rack 12 is configured as a so-called 19-inch rack. The rack 12 includes a box 13 and a door 14. The box 13 includes a frame 19 including a base 15, a ceiling panel 16, and a decorative panel 17, and a back panel (not shown) opposite to the opening 18. The base 15 and the ceiling panel 16 extend along a horizontal plane. The rack 12 is installed on the floor surface with the base 15 facing down. A rectangular parallelepiped accommodation space is defined between the base 15 and the ceiling panel 16. The left and right side surfaces of the housing space are covered with the decorative panel 17.

  As shown in FIG. 2, a door 14 for opening and closing the opening 18 is attached to the box 13. The door 14 is rotatably connected to the frame body 19 by a hinge 45. A rack mount device, that is, a rack mount type computer device 20 is mounted on the rack 12. The computer device 20 is accommodated in the accommodation space.

  As shown in FIG. 3, the rack 12 includes a finger pinching prevention device 21 for the door 14. The finger pinching prevention device 21 includes a guide piece unit 22 and a guide member 23. Here, the guide piece unit 22 is supported by the frame 19, that is, the ceiling panel 16 of the rack 12. The guide piece unit 22 is fixed to the ceiling surface in the accommodation space of the rack 12. The guide member 23 is fixed to the inward surface of the door 14. Therefore, when the door 14 closes the opening 18, the guide member 23 is stored in the storage space of the rack 12.

  The guide piece unit 22 has a guide piece 24 supported so as to be displaceable along one straight line in the horizontal direction. A driving force application mechanism 25 is connected to the guide piece 24. The driving force applying mechanism 25 includes a driving plate 27 that is attached to the ceiling panel 16 so as to be rotatable around a vertical shaft 57, and an elastic member that is connected to the driving plate 27, that is, a coil spring 28. One end of the coil spring 28 is connected to the drive plate 27, and the other end of the coil spring 28 is connected to the ceiling panel 16.

  As shown in FIG. 4, the guide piece unit 22 includes a guide piece 24, a guide rail 29, and an attachment member 32. The guide rail 29 is formed of a round bar having an axial center extending in a straight line in the horizontal direction. The guide piece 24 is formed in a cylindrical shape. The guide piece 24 is formed with a through hole 31 orthogonal to the cylindrical axis. The inner diameter of the through hole 31 is slightly larger than the outer diameter of the round bar. By passing the guide rail 29 through the through hole 31, the guide piece 24 can move on the guide rail 29. The guide rail 29 guides the linear movement of the guide piece 24.

  The attachment member 32 supports the guide rail 29. The attachment member 32 has a pair of support pieces 33 that support both ends of the guide rail 29. A small plate piece 34 is formed integrally with each support piece 33. Each of the small plate pieces 34 has a mounting surface 34a extending along a common horizontal plane. The small plate pieces 34 are stacked on the downward surface of the ceiling panel 16 at the attachment surface 34a. Each small plate piece 34 is formed with a through hole 35 for a screw. The attachment member 32 can be fixed to the ceiling panel 16 with a screw 36 screwed through the through hole 35. Thus, the axis of the guide rail 29 defines a straight line in the horizontal direction. The guide piece 24 moves on the axis of the guide rail 29.

  The attachment member 32 includes a rotation prevention piece 37. The rotation prevention piece 37 extends in parallel to the guide rail 29 between the support pieces 33. The rotation prevention piece 37 contacts the outer shape of the guide piece 24 over a predetermined length along the generatrix of the guide piece 24, that is, the side surface of the cylinder. By this contact, the guide piece 24 does not rotate around the axis of the guide rail 29 but is held in a fixed posture with respect to the guide rail 29.

  As shown in FIG. 4, the guide member 23 is a plate piece 41 that extends in a horizontal direction perpendicular to the inward surface of the door 14, and the plate piece 41 includes a horizontal plane 42. The horizontal surface 42 faces the downward surface of the ceiling panel 16, that is, the ceiling surface of the storage space when the door 14 closes the opening 18. The horizontal surface 42 extends parallel to the downward surface of the ceiling panel 16. An attachment surface 41 a is provided on a vertical plane for attaching the plate piece 41 to the door 14. The attachment surface 41a is overlaid on the inward surface of the door 14. A screw hole 43 is formed in the attachment surface 41a. The axis of the screw hole 43 may be orthogonal to the mounting surface 41a. The screw 44 penetrates the door 14 from the outside of the door 14 and is screwed into the screw hole 43. Thus, the plate piece 41 is fixed to the door 14 in a posture orthogonal to the door 14. The horizontal plane 42 is formed with a guide groove 46 that guides the movement of the guide piece 24 along the horizontal plane 42 when the relative angle changes between the frame 19 and the door 14 around the hinge axis 45a. Further, a drive cam 62 that contacts the drive plate 27 is formed at a corner near the hinge 45 (the hinge axis 45a in FIG. 4) on the surface opposite to the mounting surface 41a.

  The guide groove 46 includes a main groove 47, an auxiliary groove 48, and a connection groove 49. The main groove 47 has a wall surface 47a that extends in the circumferential direction around the axis 45a of the hinge along the horizontal plane 42 and is formed by a side surface of a cylinder drawn with the axis 45a of the hinge as the central axis. The main groove 47 includes an open end 47b that is open to the outside of the contour of the guide member 23 defined by the horizontal plane 42 around the hinge axis 45a on the surface opposite to the mounting surface 41a.

  The auxiliary groove 48 extends in parallel to the main groove 47 from the one end 48a of the auxiliary groove along the horizontal plane 42, and is arranged so as to be offset from the main groove 47 in the radial direction of a circle centering on the hinge axis 45a. Here, the auxiliary groove 48 is displaced from the main groove 47 in a direction away from the axial center 45a of the hinge. The auxiliary groove 48 has a side near the mounting surface 41a around the hinge axis 45a as one end 48a of the auxiliary groove and a side far from the mounting surface 41a as the other end 48b. Open to the outside of the contour. At this time, the width of the auxiliary groove 48 may gradually increase toward the other end 48b of the auxiliary groove to be opened. When the door 14 is closed, the guide piece 24 is guided to the auxiliary groove 48 from the other end 48b of the opened auxiliary groove.

  The connection groove 49 is a substantially crank-shaped groove connected to the main groove 47 from one end 48 a of the auxiliary groove. A trap wall 49a is provided at a portion connecting the connection groove 49 and one end 48a of the auxiliary groove. The trap wall 49a faces the guide piece 24 and is recessed from a virtual vertical plane 51 including the hinge axis 45a (a plane having sides of the axis 45a and the dotted axis of the hinge as a side). When closing 14, the guide piece 24 passes through the auxiliary groove 48 and temporarily stops at the trap wall 49a.

  When the guide piece 24 stops at the trap wall 49a, when the door 14 is once moved in the opening direction, the guide piece 24 is guided to the crank-shaped connecting groove 49 and moves to the main groove 47 (opening operation after being temporarily stopped).

  When the guide piece 24 is in the main groove 47, the door 14 can be closed.

  The driving force application mechanism 25 includes a torsion spring 52. The torsion spring 52 has a first connecting shaft 52a and a second connecting shaft 52b that open at a predetermined angle (hereinafter referred to as “reference angle”) when no external force is applied (no load). The torsion spring 52 generates torque between the first connecting shaft 52a and the second connecting shaft 52b around the vertical axis 53 of the vertical shaft 57 fixed to the ceiling panel 16 illustrated in FIG. When the relative angle between the first connecting shaft 52a and the second connecting shaft 52b is reduced from the reference angle, the torsion spring 52 accumulates elastic force in the direction in which the first connecting shaft 52a and the second connecting shaft 52b open. On the contrary, when the relative angle between the first connecting shaft 52a and the second connecting shaft 52b increases from the reference angle, the torsion spring 52 accumulates elastic force in the direction in which the first connecting shaft 52a and the second connecting shaft 52b are closed. Is done. The torsion spring 52 is connected to the guide piece 24 by the first connecting shaft 52a, and is connected to the drive plate 27 by the second connecting shaft 52b.

  A spring groove 54 for locking the first connecting shaft 52 a of the torsion spring 52 is formed on the upper end surface of the guide piece 24. As shown in FIG. 5, the spring groove 54 has two fan-like shapes that can move within the range of the arrow 55 around the axis of the guide piece 24 at an interval equal to the outer diameter of the first connecting shaft 52 a of the torsion spring 52. The grooves are arranged point-symmetrically about the axis of the guide piece 24. According to such a spring groove 54, even if the direction of the first connecting shaft 52a changes with respect to the guide piece 24, the first connecting shaft 52a can maintain a linear shape, along the guide rail 29. Thus, the smooth movement of the guide piece 24 is realized.

  As shown in FIG. 6, the drive plate 27 includes a cylindrical shaft 58 that is rotatably fitted to a vertical shaft 57 that is fixed to the downward surface of the ceiling panel 16. A torsion spring 52 is attached to the cylindrical shaft 58. A screw 59 is screwed into the tip of the vertical shaft 57. Thus, the drive plate 27 is attached to the ceiling surface of the storage space so as to be rotatable about the axis of the cylindrical shaft 58. The second connecting shaft 52 b of the torsion spring 52 is locked to the connected piece 61 on the drive plate 27.

  The drive plate 27 is formed with a driven cam surface 63 that receives the drive cam 62 of the guide member 23. As shown in FIG. 7, the driven cam surface 63 receives a driving force from the driving cam 62. The posture of the drive plate 27 when the drive cam 62 is in contact with the driven cam surface 63 is defined as a first posture. The position of the guide piece 24 when the torsion spring 52 forms a reference angle between the first connecting shaft 52a and the second connecting shaft 52b in the first posture of the drive plate 27 is defined as a first position. In the first position, the distance between the guide piece 24 and the hinge axis 45 a is equal to the distance from the hinge axis 45 a to the open end 47 b of the main groove 47. When the relative angle between the frame body 19 and the door 14 changes according to the opening / closing operation of the door 14, the drive cam 62 (the front end) draws an arc trajectory around the hinge axis 45 a. Similarly, the driven cam surface 63 forms a cylindrical surface around the hinge axis 45a when the drive plate 27 is in the first posture. Therefore, the driving plate 27 maintains the first posture as long as the contact between the driven cam surface 63 and the driving cam 62 is maintained regardless of the opening / closing operation of the door 14.

  As shown in FIG. 7, when the distance L1 between the hinge axis 45a and the main groove 47 and the distance L2 between the hinge axis 45a and the trap wall 49a are determined, the hinge axis 45a is rotated around the hinge axis 45a. The temporary stop position of the closing operation is determined according to the relative angle α between the virtual vertical plane 51 and the first position. That is, the first value (= α) of the relative angle is determined. Once the first value is determined, the length of the main groove 47 can be determined. Similarly, the range of the opening operation after stopping is determined in accordance with the relative angle β between the virtual vertical plane 51 and the boundary between the connection groove 49 and the main groove 47 around the hinge axis 45a. That is, the second value (= α + β) of the relative angle is determined.

  As shown in FIG. 8, the posture of the drive plate 27 when the contact between the drive cam 62 and the driven cam surface 63 is released is the second posture. In the second posture, the connected piece 61 on the drive plate 27 is closer to the guide piece unit 22 than in the first posture. The position of the guide piece 24 when the torsion spring 52 forms a reference angle between the first connecting shaft 52a and the second connecting shaft 52b in the second posture of the drive plate 27 is defined as a second position. In the second position, the distance between the guide piece 24 and the hinge axis 45 a is equal to the distance from the hinge axis 45 a to the other end 48 b that is the open end of the auxiliary groove 48. Since the driving cam 62 does not contact the driven cam surface 63, the opening / closing operation of the door 14 does not generate a driving force for the driving plate 27. Here, the second posture of the drive plate 27 is defined by the stopper 64. The stopper 64 is disposed on the ceiling surface of the storage space at a position in contact with the driven cam surface 63. The stopper 64 may be fixed to the downward surface of the ceiling panel 16. The coil spring 28 exhibits an elastic force that holds the drive plate 27 in the second posture around the vertical axis 57. The driven cam surface 63 is pressed against the stopper 64 around the vertical axis 57 by the action of the coil spring 28. When the guide piece 24 is guided to the guide groove 46, the drive cam 62 pushes the drive plate 27 against the elastic force of the coil spring 28 based on the external force applied to the door 14 when the door 14 is opened and closed. A driving force for driving the posture is transmitted to the driving plate 27.

  Next, the opening / closing operation of the door 14 will be described. As shown in FIG. 7, the guide piece 24 is in the main groove 47 with the door 14 closed. The drive plate 27 maintains the first posture. The drive cam 62 contacts the driven cam surface 63. Therefore, an elastic force is generated in the coil spring 28 in the contracting direction. The guide piece 24 is located at the first position on the guide rail 29. In the state where no external force is applied to the torsion spring 52, a reference angle is established between the first connecting shaft 52a and the second connecting shaft 52b.

  As shown in FIG. 9, when the opening operation of the door 14 is started, the drive cam 62 continues to contact the driven cam surface 63, so that the first posture of the drive plate 27 is maintained. When the opening operation of the door 14 is continued, the relative angle θ between the frame body 19 and the door 14 increases from zero degrees. The guide piece 24 moves in the main groove 47 toward the open end 47 b of the main groove 47. Thus, while the guide piece 24 moves in the main groove 47, the drive cam 62 of the guide member 23 continues to hold the drive plate 27 in the first posture against the elastic force of the coil spring 28. At this time, the torsion spring 52 exerts a force in a direction of pressing the guide piece 24 against the wall surface 47 a of the main groove 47. As a result, the guide piece 24 does not move from the main groove 47 toward the connection groove 49 but passes through the connection groove 49. The torsion spring 52 does not exert a force in the direction of pressing the guide piece 24 against the wall surface 47a of the main groove 47, but maintains a reference angle between the first connection shaft 52a and the second connection shaft 52b. Also good.

  As shown in FIG. 10, when the guide piece 24 passes through the connection groove 49, the drive cam 62 on the guide member 23 is detached from the driven cam surface 63 of the drive plate 27. As a result, the drive plate 27 starts to rotate around the vertical shaft 57 in the direction in which the coil spring 28 contracts due to the elastic force of the coil spring 28. Here, although the torque around the vertical shaft 57 generated by the coil spring 28 is larger than the torque of the torsion spring 52, the guide piece 24 is held at the first position on the guide rail 29 by the restriction of the main groove 47. Therefore, elastic force is accumulated in the direction in which the first connecting shaft 52a and the second connecting shaft 52b are closed in the torsion spring 52 in accordance with the rotation of the drive plate 27.

  As shown in FIG. 11, when the opening operation of the door 14 is further continued, the guide piece 24 moves from the open end 47 b of the main groove 47 to the outside of the outline of the guide member 23 according to the opening operation of the door 14. . The guide piece 24 is detached from the guide member 23. The guide member 23 has only to guide the guide piece 24 within a limited range in the open area of the door 14, and does not need to guide the guide piece 24 over the entire open area of the door 14. Therefore, the guide member 23 can be reduced in size compared with the case where the main groove 47 is formed over the entire open area of the door 14.

  When the guide piece 24 is detached from the guide member 23, the contact between the drive cam 62 and the driven cam surface 63 is also released as shown in FIG. Therefore, the drive plate 27 establishes the second posture by the action of the coil spring 28. The guide piece 24 is allowed to move on the guide rail 29. The torsion spring 52 exerts a driving force for driving the guide piece 24 along one straight line in the horizontal direction from the first position to the second position. Elastic force is generated in a direction in which the first connecting shaft 52a and the second connecting shaft 52b move away from each other. The torsion spring 52 exerts a force for holding the guide piece 24 in the second position.

  Thereafter, when the door 14 is closed, the guide piece 24 is guided to the auxiliary groove 48 as shown in FIG. As described above, since the guide piece 24 is held at the second position, the guide piece 24 can be reliably prevented from entering the main groove 47. When the closing operation of the door 14 is continued, the guide piece 24 moves in the auxiliary groove 48 toward the other end 48b of the auxiliary groove. At this time, the drive cam 62 of the guide member 23 is driven toward the driven cam surface 63 of the drive plate 27 in accordance with the closing operation of the door 14. Regardless of the rotation of the drive plate 27, the auxiliary groove 48 restricts the movement of the guide piece 24 on the guide rail 29 toward the first position, so that the drive plate 27 is driven as shown in FIG. Elastic force is accumulated in the torsion spring 52 in the direction in which the first connecting shaft 52a and the second connecting shaft 52b are closed.

  Further, when the closing operation of the door 14 is continued and the relative angle between the frame body 19 and the door 14 decreases to the first value (= α), the guide piece 24 travels through the auxiliary groove 48 as shown in FIG. The auxiliary groove 48 moves from one end 48a to a place where the connecting groove 49 contacts the curved trap wall 49a. The guide piece 24 and the trap wall 49a are in contact with each other. Since the trap wall 49a is recessed from the virtual vertical plane 51, the movement of the guide piece 24 is regulated along one horizontal straight line on the guide rail 29. Accordingly, the reduction of the relative angle between the frame body 19 and the door 14 is restricted. That is, since the closing operation of the door 14 is stopped, a space can be secured between the frame body 19 and the door 14.

  At this time, when the “opening operation” of the door 14 is performed instead of the closing operation, in other words, when the relative angle between the frame body 19 and the door 14 increases from the first value (= α), it is shown in FIG. As described above, the guide piece 24 moves from the trap wall 49 a toward the main groove 47 by the elastic force accumulated in the torsion spring 52. Thus, the torsion spring 52 functions as a power source for the driving force applying mechanism 25.

  Since the guide piece 24 moves along a straight line in the horizontal direction on the guide rail 29, when the opening operation of the door 14 is further continued, the guide piece 24 is main as shown in FIGS. 16 and 17. It moves further toward the groove 47. When the relative angle between the frame body 19 and the door 14 reaches a second value larger than the first value, the guide piece 24 enters the main groove 47 as shown in FIG.

  Thereafter, when the door 14 is closed again, that is, when the relative angle between the frame 19 and the door 14 decreases from the second value, the guide piece 24 is guided to the main groove 47. Since the main groove 47 extends in the circumferential direction around the hinge axis 45a, the closing operation of the door 14 can be continued. As a result, as shown in FIG. 7, the relative angle between the frame body 19 and the door 14 can reach 0 (zero) degrees. Thus, the door 14 can completely close the opening 18 of the box 13. Thus, after the closing operation of the door 14 is temporarily stopped, the door 14 cannot be completely closed unless the opening operation of the door 14 is performed once. Therefore, the temporary stop of the closing operation of the door 14 can be achieved reliably.

  The guide member 23 can be screwed to the door 14 as described above, can be fixed by other fixing methods, and can be integrated with the door 14. Similarly, the attachment member 32 of the guide piece unit 22 may be integrated with the ceiling panel 16 of the frame body 19. In addition, the attachment member 32, the vertical shaft 57, and the stopper 64 of the guide piece unit 22 may be formed on a common support plate and handled as one unit. Moreover, the box 13 and the frame 19 may be handled as the same thing.

11 Electronic equipment 12 Rack (cabinet)
DESCRIPTION OF SYMBOLS 13 Box 14 Door 15 Base 16 Ceiling panel 17 Cosmetic panel 18 Opening 19 Frame 20 Computer apparatus 21 Finger pinching prevention apparatus 22 Guide piece unit 23 Guide member 24 Guide piece 25 Driving force provision mechanism 27 Drive plate 28 Coil spring 29 Guide rail 45 Hinge 45a Axis of hinge 46 Guide groove 47 Main groove 47a Wall surface of main groove 47b Open end of main groove 48 Auxiliary groove 48a One end of auxiliary groove 48b Other end of auxiliary groove 49 Connection groove 49a Trap wall 52 Torsion spring 52a First Connecting shaft 52b Second connecting shaft 57 Vertical shaft 58 Cylindrical shaft 62 Driving cam 63 Driven cam surface 64 Stopper

Claims (5)

A guide piece unit having a frame or a guide piece fixed to one of the doors that is connected to the frame so as to be opened and closed in a horizontal direction by a hinge and movable in a horizontal direction so as to be displaceable;
A guide member fixed to the other of the frame body or the door and having a guide groove formed to guide the movement of the guide piece on a horizontal plane when the door is opened and closed;
A driving force applying mechanism for applying a driving force for driving the guide piece,
The guide groove has a main groove, an auxiliary groove, and a connection groove,
The main groove is formed such that one end facing the frame body or the door is opened on a circumference centered on an axis corresponding to an axis of the hinge.
The auxiliary groove is formed such that one end facing the frame body or the door is opened and the other end is closed on a circumference shifted radially outwardly with respect to the main groove with respect to the main groove,
The connection groove is a crank-shaped groove, and is formed to connect the other end of the auxiliary groove and one end and the other end of the main groove,
When closing the door,
The guide piece is introduced into the auxiliary groove at a position where the auxiliary groove is opened by the driving force applying mechanism, and comes into contact with the closed other end of the auxiliary groove as the door is closed. The finger pinching prevention device is temporarily stopped and moved to the connection groove by the driving force applying mechanism. In the pinch prevention device according to claim 1,
When closing the door,
After the guide piece has moved to the connection groove, the door is moved in the opening direction once.
The finger pinching prevention device, wherein the guide piece is moved from the connection groove to the main groove by the driving force applying mechanism. The finger pinching prevention device according to claim 1 or 2,
The driving force applying mechanism is configured such that when the door is opened and closed, the one end of the auxiliary groove from the axial center of the hinge from the first position located at a distance from the axial center of the hinge to the one end of the main groove. A finger pinching prevention device comprising a driving force for driving the guide piece along the one straight line in the horizontal direction between a second position and a second position. In the finger pinching prevention device according to claim 3,
The driving force applying mechanism has a first connecting shaft and a second connecting shaft that open at a predetermined angle when no load is applied, and is connected to the guide piece by the first connecting shaft and is fixed to the frame. A torsion spring for generating a torque between the first connecting shaft and the second connecting shaft around,
The guide piece attached to the frame so as to be rotatable about the vertical axis and connected to the second connecting shaft of the torsion spring moves to the axial center side of the hinge when the guide piece moves in the main groove. A drive plate whose posture changes between a first posture that causes the torsion spring to generate a force for moving a piece, and a second posture that causes the torsion spring to generate a force that holds the guide piece in the second position;
An elastic member coupled to the drive plate and exhibiting an elastic force to hold the drive plate in the second posture;
A driving force that is formed on the guide member and acts on the drive plate when the guide piece is guided to the guide groove to drive the drive plate to the first posture against the elastic force. And a drive cam that transmits the drive signal to the drive plate. In a cabinet composed of a frame and a door connected to the frame so as to be opened and closed in a horizontal direction by a hinge,
The cabinet provided with the finger pinching prevention apparatus in any one of Claims 1 thru | or 4.

Images