JP2012094708A - Structure and method for preventing fall of unit at drawing out - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure and a method for preventing the fall of a unit of a drawer structure at drawing out the unit.SOLUTION: The structure for preventing the fall of a unit at the time of drawing out the unit comprises: an installation cage 1; a guide rail 3 laid down in the installation cage 1 to be movable to the outside of the installation cage 1, and provided with a groove 10 having a predetermined width W1; and a unit 2 provided slidably along the groove 10. The unit 2 has a stopper 9 which is fitted in the groove 10 of the guide rail 3 and slid along the groove. The guide rail 3 has an engaging portion 11 in an end portion of the groove 10. When being engaged with the stopper 9, the engaging portion 11 stops the unit 2 sliding in a direction P toward the outside thereof and guides the move of the unit 2 along a vertically upward direction U.

Description

  The present invention relates to a unit having a drawer structure, and more particularly to a structure for preventing a drop when the unit is pulled out, and a method for preventing a drop when the unit is pulled out.

  In an electronic device mounted with high density, both high reliability and high performance are required. In order to realize this requirement, an electronic device in which a detachable unit is mounted is used. The unit easily realizes replacement at the time of failure, saving of data, expansion of functions as a device by addition of the unit, replacement with parts having improved performance, and the like. As a result, the unit contributes to providing an electronic device having excellent maintainability and expandability. In order to facilitate replacement in the case of a drawer-type unit, a structure that reliably produces smooth movement of the unit and proper alignment is required.

  In relation to the above description, a slide rail unit with a holding function is disclosed in Japanese Utility Model Registration No. 3126799. In this example, a holding pin erected so as to be movable in the longitudinal direction and the width direction with respect to the first rail, an elastic member that urges the holding pin toward the stroke end of the second rail, 1 is provided on the rail, and the holding pin is locked at the standby position away from the stroke end against the biasing force of the elastic member, and the holding pin detached from the standby position is directed toward the stroke end with the biasing force. A pin guide member for guiding, and a cam member that is provided on the second rail and that holds the holding pin away from the standby position of the pin guide member and overlaps with the pin guide member.

  Japanese Utility Model Laid-Open No. 63-195786 discloses a drawer slide mechanism. This is because the slide fittings are provided on both side walls of the drawer, and the guide rails corresponding to the slide fittings are provided on the rack, respectively, and the drawer accommodated in the rack is pulled out by sliding the slide fitting on the guide rail. In the drawer slide mechanism, by providing a notch in the guide rail, the guide rail is separated into a short first rail portion and a long second rail portion, and the first rail portion is separated with the notch therebetween. And a second rail portion, and a stopper that hits the first rail portion when the drawer is pulled out from the rack is provided in the vicinity of the end portion on the back side of the drawer of the slide fitting. .

  A slide mass automatic processing system is disclosed in Japanese Patent Application Laid-Open No. 2006-308575. This includes a slide tray that holds a plurality of slides in a substantially horizontal position and a workstation that receives the slide tray. Also, in a specific embodiment, the workstation supplies reagents to the slide surface without substantial transfer of reagents from one slide to another slide (and reagents that carry contaminants such as exfoliated cells). Like to do. Furthermore, an automatic slide processing method is also provided.

  Japanese Patent No. 4507218 discloses an apparatus and a method for fixing a carriage or the like. In this example, on the bottom of the furniture or caster, a substrate in which a large number of needles are obliquely implanted and integrated is provided together with a mechanism for the needles to be arbitrarily inserted into the carpet on the floor. In the case of trucks that are fixed on the floor and are used for laying aircraft, etc., the mechanism is operated instantly manually or automatically before the vibration becomes serious and dangerous to prevent damage caused by turbulence. ing.

Utility Model Registration No. 3126799 Japanese Utility Model Publication No. 63-195786 JP 2006-308575 A Japanese Patent No. 4507218

  If the weight of the unit pulled out from the electronic device exceeds the operator's assumption, or if the unit itself is uneven in weight, the unit will be out of balance and tilted when it is lifted. It can be dropped. This can cause damage to the unit, damage to the mounting cage on the unit storage side, and the like.

  The problem to be solved by the present invention is to provide a structure for preventing a drop when removing a unit and a method for preventing a drop when removing a unit that prevent the unit from dropping when the unit having a drawer structure is removed.

  The structure for preventing the unit from dropping when the unit is removed includes a mounting cage, a guide rail laid on the mounting cage and movable to the outside of the mounting cage, and a slide provided on the guide rail and having a predetermined width. The unit has a stopper that slides in the groove of the guide rail, and the guide rail engages with the stopper at the end of the groove and slides in the direction of the outside of the unit. It has a meshing part that stops and guides the movement of the unit vertically upward.

  According to the method for preventing the unit from dropping when the unit is removed, the unit accommodated in the mounting cage is placed on the guide rail that is laid on the mounting cage and movable to the outside of the mounting cage. A step of stopping the sliding of the unit in an outward direction of the unit by engaging the stopper of the unit that slides in the groove of the guide rail with the engaging part of the end of the groove, and a unit stopper A step of moving the guide rail in the outward direction by meshing with the meshing portion; and a step of moving the unit vertically upward by guidance of the meshing portion to release the meshed state between the stopper and the meshing portion.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the fall prevention structure at the time of unit extraction which prevents the fall at the time of extraction of the unit of drawer structure, and the fall prevention method at the time of unit extraction.

FIG. 1 is a cross-sectional view illustrating an example of a structure for preventing a drop when a unit is removed in an embodiment of the present invention. FIG. 2 is a cross-sectional view illustrating an example of an elastic member having a structure for preventing a drop when the unit is removed in the embodiment of the present invention. FIG. 3A is a bottom view showing an example of a structure for preventing a drop when the unit is removed in the embodiment of the present invention. FIG. 3B is an enlarged view of a main part of the bottom surface showing an example of a structure for preventing a drop when the unit is removed in the embodiment of the present invention. FIG. 4A is a perspective view showing an example when the unit is pulled out of the fall prevention structure when the unit is removed in the embodiment of the present invention. FIG. 4B is a partially enlarged perspective view showing an example when the unit is pulled out of the fall prevention structure when the unit is removed in the embodiment of the present invention. FIG. 5A is a perspective view illustrating an example of the unit removal of the fall prevention structure at the time of unit removal in the embodiment of the present invention. FIG. 5B is a partially enlarged perspective view showing an example of the unit removal of the fall prevention structure at the time of unit removal in the embodiment of the present invention. FIG. 6A is a bottom view showing an example of a unit having a structure for preventing a drop when the unit is removed in the embodiment of the present invention. FIG. 6B is a bottom view showing an example of a stopper in the unloading state of the drop prevention structure when the unit is removed in the embodiment of the present invention. FIG. 6C is a bottom view showing an example of a stopper in a state where a load is applied to the fall prevention structure when the unit is removed in the embodiment of the present invention. FIG. 7 is a cross-sectional view illustrating an example of a guide rail having a structure for preventing a drop when the unit is removed in the embodiment of the present invention. FIG. 8 is a cross-sectional view illustrating an example of a meshing portion of the guide rail of the structure for preventing a drop when the unit is removed in the embodiment of the present invention.

  Hereinafter, a unit drop prevention structure and a unit drop prevention method according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. Below, the example which applied the fall prevention structure at the time of unit extraction to the electronic device illustrated by the computer is demonstrated. However, the present invention is not limited to this example.

  First, the structure of the structure for preventing a drop when the unit is removed according to the present invention will be described in detail.

  FIG. 1 is a cross-sectional view illustrating an example of an electronic apparatus to which a structure for preventing a drop when a unit is removed is applied in an embodiment of the present invention. FIG. 1 shows a cross-sectional structure of the side surface side of the electronic device 20. The electronic device 20 includes a mounting cage 1 and a unit 2. The mounting cage 1 has an insertion shelf S that is a space for detachably storing the unit 2. FIG. 1 shows a state in which the unit 2 is pulled out from the insertion shelf S in the mounting cage 1.

  The mounting cage 1 includes guide rails 3 and 4. The guide rail 3 is provided on the bottom surface corresponding to the bottom of the insertion shelf S. The guide rail 3 laid inside the mounting cage 1 is configured to be movable to the outside of the mounting cage 1. The guide rail 3 mounts and supports the unit 2. On the other hand, the guide rail 4 is provided on the ceiling surface of the insertion shelf S. The guide rail 4 is fixed to the mounting cage 1. The guide rails 3 and 4 guide the unit 2 in the attaching / detaching direction.

  The unit 2 includes guide plates 5a and 5b. The guide plate 5 a is attached to the lower part of the unit 2. The guide plate 5 b is attached to the upper part of the unit 2. The unit 2 is slidably inserted along the guide rail 3 and the guide rail 4 into the mounting cage 1 or pulled out of the mounting cage 1.

  The mounting cage 1 includes a roller 6 and an elastic member 7 exemplified by a spring. The roller 6 is provided in a freely rotatable manner at an end portion on the back side of the guide rail 3 surrounded by A in FIG. One end of the elastic member 7 is connected to the inside of the mounting cage 1 that contacts the bottom side of the storage shelf S, and the other end is connected to the end of the guide rail 3 on the back side.

  The unit 2 includes a handle 8. The handle 8 is provided on the surface of the unit 2 where the unit 2 is pulled. The arrows in the figure indicate the direction P in which the unit 2 housed in the mounting cage 1 is pulled out. Similarly, the arrow indicates the direction in which the guide rail 3 is pulled out. That is, the unit 2 stored in the storage shelf S is moved on the guide rail 3 by the user pulling the handle 8 in the direction of the arrow, and the guide rail 3 is further moved to the outside to move outside the mounting cage 1. Will be exposed.

  FIG. 2 is a cross-sectional view illustrating an example of an elastic member having a structure for preventing a drop when the unit is removed in the embodiment of the present invention. Referring to FIG. 2, the portion surrounded by A in FIG. 1 is shown enlarged. The guide rail 3 has a roller 6 necessary for its own slide. The guide rail 3 is configured to be movable to the outside of the mounting cage 1 by the rolling of the roller 6. On the other hand, the elastic member 7 is connected to the inside of the mounting cage 1 and the guide rail 3. The elastic member 7 biases the guide rail 3 toward the inside opposite to the outside of the mounting cage 1. As a result, the elastic member 7 pulls the guide rail 3 that has moved to the outside of the mounting cage 1 back into the mounting cage 1. The elastic member 7 is provided so as to be extendable and contractible in the expansion / contraction direction K of the elastic member 7 indicated by an arrow in the drawing. Thereby, the guide rail 3 can reciprocate between the inside and the outside of the mounting cage 1. Thus, the guide rail 3 is held at a fixed position in the mounting cage 1. Further, the guide rail 3 has a convex portion 15 extending in the bottom direction of the storage shelf S. The convex portion 15 penetrates the bottom surface of the mounting cage 1.

  FIG. 3A is a bottom view showing an example of a structure for preventing a drop when the unit is removed in the embodiment of the present invention. Referring to FIG. 3A, the positional relationship of the guide rail 3 in the mounting cage 1 is shown. In the mounting cage 1 in FIG. 3A, a configuration in which two units 2 can be mounted is illustrated. The guide rail 3 shown on the upper side in FIG. 3A is in a state where a part thereof is pulled out to the outside of the mounting cage 1. The guide rail 3 shown on the lower side of FIG. 3A is in a state of being housed in the mounting cage 1. As described above, the guide rail 3 can move from the inside of the mounting cage 1 until a part of the guide rail 3 is exposed to the outside. Further, the upper and lower guide rails 3 are provided at the end away from the center, that is, on the upper side in FIG. 3A. With this configuration, the structure of the unit 2 is not restricted. The convex portion 15 of the guide rail is located at the end on the back side of the guide rail 3 surrounded by B in FIG. 3A and penetrates the bottom surface of the mounting cage 1.

  FIG. 3B is an enlarged view of a main part of the bottom surface showing an example of a structure for preventing a drop when the unit is removed in the embodiment of the present invention. Referring to FIG. 3B, a portion surrounded by B in FIG. 3A is enlarged. 3B shows a state in which the upper guide rail 3 is pulled out and the lower guide rail 3 is housed, as in FIG. 3A. In addition, the elastic member 7 is a fixed position in the lower state in the example in which the elastic members 7 are attached to the upper and lower storage shelves S, respectively. The mounting cage 1 is provided with a guide groove 16 on the bottom surface of the storage shelf S. The guide groove 16 is an opening that penetrates the bottom surface of the storage shelf S. The guide groove 16 extends along the moving direction of the guide rail 3. Such a guide groove 16 has a substantially rectangular shape. A convex portion 15 of the guide rail 3 is fitted in the guide groove 16. The convex part 15 has an example of a cylindrical shape. The shape of the convex portion 15 may be a prismatic shape, for example. The guide rail 3 is moved on a predetermined track by being guided by the convex portion 15 moving along the guide groove 16. Moreover, the guide groove 16 is formed in a state adjusted so as to appropriately define the moving section of the guide rail 3. Accordingly, the guide rail 3 is stored in the storage shelf S when the unit 2 is mounted on the mounting cage 1, and the guide rail 3 is exposed to an appropriate position outside the mounting cage 1 when the unit 2 is removed. In this way, the end portion of the back side of the guide rail 3 does not collide with the inside of the mounting cage 1 or drop out when pulled out.

  FIG. 4A is a perspective view showing an example when the unit is pulled out of the fall prevention structure when the unit is removed in the embodiment of the present invention. Referring to FIG. 4A, a state where the entire unit 2 is pulled out from the mounting cage 1 is shown. When the handle 8 is pulled horizontally in the pulling direction P, the guide plate 5 b is exposed to the outside of the mounting cage 1. When the entire unit 2 is pulled out from the mounting cage 1, the upper part of the unit 2 having the guide plate 5 b is detached from the guide rail 4. On the other hand, a part of the guide plate 5a attached to the lower part of the unit 2 is on the guide rail 3 drawn out of the mounting cage 1 surrounded by C in FIG. 4A. Therefore, the lower part of the unit 2 having the guide plate 5a is still supported by the guide rail 3. Since the unit 2 is not stable when a part of the unit 2 is supported by the guide rail 3, the operator is encouraged to carefully support and remove the bottom of the unit 2.

  4B is an enlarged view of a portion surrounded by C in FIG. 4A. Referring to an enlarged view of the bottom of the unit 2 in FIG. 4B, in other words, an enlarged view of the opening of the mounting cage 1, a guide rail 3 drawn out of the mounting cage 1 and a guide plate 5a mounted thereon are shown. Yes. The guide rail 3 has a groove 10. The groove 10 extends on the surface on which the unit 2 is placed along the direction in which the guide rail 3 reciprocates between the inside and the outside of the mounting cage 1. The guide plate 5 a slides on a groove 10 provided on the guide rail 3.

  FIG. 5A is a perspective view illustrating an example of the unit removal of the fall prevention structure at the time of unit removal in the embodiment of the present invention. Referring to FIG. 5A, a state in which the unit 2 is lifted after being pulled out of the mounting cage 1 is shown. The arrow in the figure indicates the removal direction U of the unit 2 which is the vertical upward direction. The unit 2 is configured to move upward when the handle 8 is pulled in the removal direction U and to be detached from the mounting cage 1. The same place as the area surrounded by C in FIG. 4A is surrounded by D.

  5B is an enlarged view of a portion surrounded by D in FIG. 5A. Referring to an enlarged view of the bottom of the unit 2 in FIG. 5B, that is, an opening of the mounting cage 1, the guide rail 3 drawn out of the mounting cage 1 and the guide plate removed therefrom in the removal direction U 5a is shown. The guide plate 5a has a stopper 9 at its end on the bottom side. The stopper 9 is made of an elastic material such as an elastic material exemplified by rubber or an elastic structure exemplified by a spring. The stopper 9 slides in the groove 10 of the guide rail 3. The height of the stopper 9 is H. The stopper 9 is formed so that the width combined with the guide plate 5 a is substantially the same as the width of the groove 10, and the drawing direction P side is wider than the width of the groove 10. The stopper 9 made of an elastic body is fitted in the groove 10 by contracting.

  The arrow toward the mounting cage 1 in the figure indicates the return direction R of the guide rail 3 that is the direction inside the mounting cage 1. The guide rail 3 after the unit 2 is removed is configured to be pulled back in the return direction R by the elastic member 7.

  The guide rail 3 has a meshing portion 11 at the front end portion of the groove 10. The meshing part 11 has a recess in which the width of the groove 10 increases as it advances in the pulling (external) direction P. In addition, the widened width is narrowed at the position of the meshing portion 11 in the outermost direction P. The meshing part 11 having such a configuration meshes with the stopper 9. Thereby, the guide plate 5a of the unit 2 is prevented from sliding further in the pulling direction P. In this state, the meshing part 11 guides the movement of the unit 2 in the removal direction U. As the unit 2 moves in the vertical direction, the engagement between the stopper 9 and the engagement portion 11 is released. This function is realized by providing a catching portion 12 in which the width of the groove 10 is narrower than the meshing portion 11 on the side of the meshing portion 11 in the pulling direction P. In addition, the catching part 12 should just be narrower than the expansion of the width | variety of the groove | channel 10 by the meshing part 11. FIG. With such a configuration, the unit 2 is not pulled out on the guide rail 3 beyond a certain amount. In this state, when the guide rail 3 following the unit 2 (guide plate 5a) moves in the pulling direction P, the unit 2 moves to the outside of the mounting cage 1.

  The groove 10 further extends in the pulling direction P side from the meshing portion 11 and reaches the tip 13 of the guide rail 3. The width of the groove 10 on the pulling direction P side from the catching portion 12 is formed substantially the same as the width on the return direction R side from the meshing portion 11. The stopper 9 is configured to freely fit in the groove 10 from the tip 13 of the guide rail 3 and slide in the return direction R. Further, the elastic stopper 9 is configured to be movable in the return direction R even at the meshing portion 11 provided with the catching portion 12. As described above, in the unit drop prevention structure according to the present embodiment, the insertion direction and the removal direction of the unit 2 with respect to the mounting cage 1 are different. The guide rail 3 is housed in the mounting cage 1 after the unit 2 is removed. Therefore, the method of attaching the unit 2 from the tip 13 side of the guide rail 3 as in this embodiment is preferable from the viewpoint of ease of work. In addition, in order to make introduction from the front end 13 side of the guide plate 5a easier, the width of the groove 10 may be widened to be chamfered.

  FIG. 6A is a bottom view showing an example of a unit having a structure for preventing a drop when the unit is removed in the embodiment of the present invention. 6A, the positional relationship between the guide plate 5a attached to the unit 2 and the stopper 9 is shown. The guide plate 5a extends in the attaching / detaching direction of the unit 2 so as to support the entire unit 2. The guide plate 5 a is provided so as to extend further than the back side of the unit 2. This extended portion is effective when the unit 2 is attached. Further, the guide plate 5a is provided at the end away from the center, that is, on the right side in FIG. 6A in accordance with the configuration of the guide rail 3. The stopper 9 is provided at the end on the back side of the guide plate 5a surrounded by E in FIG. 6A. The stopper 9 is attached so as to sandwich the guide plate 5a.

  FIG. 6B is a bottom view showing an example of a stopper in the unloading state of the drop prevention structure when the unit is removed in the embodiment of the present invention. 6B, the stopper 9 attached to the guide plate 5a surrounded by E in FIG. 6A is shown enlarged. The stopper 9 is provided substantially in parallel with the guide plate 5 a extending in the attaching / detaching direction of the unit 2. The stopper 9 has a fixed portion 17 and a movable portion 18. The fixing portion 17 is connected along the attaching / detaching direction of the unit 2. The movable portion 18 extends from the fixed portion 17 in the drawer (external) direction P. The movable portion 18 is provided by being bent from the fixed portion 17 so as to move away from the unit 2 as it proceeds in the pulling direction P.

  FIG. 6C is a bottom view showing an example of a stopper in a state where a load is applied to the fall prevention structure when the unit is removed in the embodiment of the present invention. Referring to FIG. 6C, a load is applied to the stopper 9 in the direction of the unit 2. The stopper 9 formed of an elastic body is formed so that the fixed portion 17 and the movable portion 18 are linearly formed by the force with which the movable portion 18 is pressed in the unit 2 direction.

  Thus, when the stopper is positioned in the groove 10 having a narrowed width, the fixed portion 17 and the movable portion 18 are linearly formed by the force with which the movable portion 18 is pressed in the direction of the unit 2. On the other hand, when the stopper is positioned at the meshing portion 11, the tip of the movable portion 18 is configured to expand in a direction away from the unit 2 by its own elasticity.

  FIG. 7 is a cross-sectional view illustrating an example of a guide rail having a structure for preventing a drop when the unit is removed in the embodiment of the present invention. Referring to FIG. 7, a cross section taken along A-A ′ of the guide rail 3 of FIG. 5 is shown. The groove 10 has a depth H and a width W1. A protrusion 14 that narrows the width of the groove 10 of the guide rail 3 is provided as needed on the side of the extraction direction U from the region formed by the depth H and the width W1. The width of the groove 10 squeezed by the protrusion 14 is wider than the guide plate 5 a and narrower than the stopper 9. In the present embodiment, the function of the stopper 9 is sufficiently exhibited even if the protrusion 14 is not provided. However, the protrusion 14 is preferably provided from the viewpoint of reliably preventing the unit 2 from being detached from other than the meshing portion 11.

  FIG. 8 is a cross-sectional view illustrating an example of a meshing portion of the guide rail of the structure for preventing a drop when the unit is removed in the embodiment of the present invention. Referring to FIG. 8, a cross-section at B-B ′ that is the meshing portion 11 of the guide rail 3 of FIG. 5 is shown. The groove 10 in the meshing part 11 has a width of W2. The width W2 is wider than the width W1. According to the dimensions of these grooves 10, the width of the stopper 9 is preferably formed such that the width on the return direction R side is W1 and the width on the pulling direction P side is W2. Further, the protrusion portion 14 is not provided in the meshing portion 11. The stopper 9 that has reached the meshing portion 11 is released from the force from the side wall of the groove 10 and widens its width. As described above, the stopper 9 does not move further in the pulling direction P side due to the configuration in which the catching portion 12 in which the width of the groove 10 is narrowed on the pulling direction P side of the meshing portion 11 is provided. On the other hand, the stopper 9 is configured to move freely in the removal direction U by not providing the protruding portion 14 in the meshing portion 11. The stopper 9 is not limited to the above-described form, and may have a structure integrated with the guide plate 5a, for example.

  Next, the operation of the structure for preventing a drop when the unit is removed according to the present invention will be described in detail.

  First, a method for removing the unit 2 will be described.

  The handle 8 of the unit 2 housed in the mounting cage 1 is pulled in the pulling direction P. As a result, the guide plate 5 a attached to the unit 2 and the stopper 9 slide on the groove 10 on the guide rail 3. In the upper part of the unit 2, the guide plate 5 b moves along the guide rail 4 fixed to the mounting cage 1.

  The stopper 9 reaches the meshing part 11 of the guide rail 3. Therefore, the width of the stopper 9 in the pulling direction P is increased from the state compressed to the width W1 of the groove 10 by the force from the side wall of the groove 10 to the width W2 of the groove 10 of the meshing portion 11.

  The stopper 9 having an increased width engages with the catching portion 12 on the pulling direction P side of the engaging portion 11, so that the guide plate 5 a of the unit 2 does not slide further on the pulling direction P side. Instead, the guide rail 3 integrated with the unit 2 moves as the roller 6 rolls in the pulling direction P side. This movement continues until the entire unit 2 comes out of the mounting cage 1.

  When the entire unit 2 comes out of the mounting cage 1, the upper part of the unit 2 having the guide plate 5 b is detached from the guide rail 4. On the other hand, a part of the guide rail 3 follows the unit 2 and is pulled out of the mounting cage 1. However, the guide rail 3 does not move further in the pulling direction P side like the unit 2 because the convex portion 15 provided at the lower portion thereof and the end portion of the guide groove 16 are caught.

  Next, the handle 8 is pulled in the removal direction U with respect to the unit 2 supported by the guide rail 3. The stopper 9 is slidable in the removal direction U at the meshing portion 11. When the stopper 9 moves in the removal direction U until it is separated from the meshing portion 11, the meshed state of the stopper 9 and the meshing portion 11 is released. At this time, the operator is warned of attention by constructing the unit 2 so as to be removed while maintaining the balance and level of the unit 2. That is, the worker has a lower portion of the unit 2 in order to support the unit 2 that is supported only by the guide rail 3 and lacks a relatively stable feeling. After that, the unit 2 is lifted and removed.

  The guide rail 3 after the meshed state of the stopper 9 and the meshing portion 11 is released automatically returns to the original position in the mounting cage 1 by the elastic member 7 connected to the inside of the mounting cage 1. .

  Next, an attachment method will be described.

  The unit 2 is attached from a state in which the guide rail 3 is housed in the mounting cage 1.

  A guide plate 5 a is fitted in the groove 10 at the tip 13 of the guide rail 3. When the unit 2 is pushed in the return direction R as it is, the stopper 9 also fits into the groove 10 from the tip 13.

  The elastic stopper 9 is movable in the return direction R side because the width of the stopper 9 is reduced when the catching portion 12 passes. The stopper 9 expands its width at the meshing portion 11. However, when the stopper 9 further advances in the return direction R, the width is reduced again. Accordingly, the stopper 9 can be further moved in the return direction R side. Thus, the unit 2 is accommodated in the mounting cage 1. As described above, the stopper 9 whose width on the pulling direction P side is widened can move without being caught when the stopper 9 moves toward the return direction R side.

  In the above, the fall prevention structure at the time of unit removal by the embodiment of the present invention and the fall prevention method at the time of unit removal were explained.

  This embodiment is suitably used as a mechanism for supporting the unit 2 in the vertical direction in the electronic device 20 in which the longitudinal direction of the unit 2 is arranged in the vertical direction. Further, the present embodiment, which can be incorporated in the mounting cage 1 in a space-saving manner, suppresses the proportion of the guide rail 3 in the mounting cage 1 and does not hinder the incorporation of other mechanisms. According to the present embodiment having such a feature, the configuration in which the movement of the unit 2 at the time of removal is guided in the vertically upward direction U has an effect of prompting the operator to correctly remove the unit.

  Further, according to the present embodiment, there is an effect of supporting the unit 2 by the configuration in which the guide rail 3 moves to the outside of the mounting cage 1 when the unit 2 is removed.

  Further, according to the present embodiment, the configuration in which the guide rail 3 after the unit 2 is removed is automatically housed in the mounting cage 1, so that the unit can be replaced without disturbing other work areas. Have

  Further, according to the present embodiment, there is an effect that not only the correct unit 2 can be removed but also the unit 2 can be easily attached.

  And according to this embodiment, it has the effect which prevents the damage of the unit 2 at the time of unit 2 extraction, the damage of the mounting cage 1 which is the storage side of the unit 2, etc. In the electronic device 20 to which the present embodiment is applied, a mechanism such as a connector for connecting the mounting cage 1 to the unit 2 to be removed is exposed. If the unit 2 is dropped when it is removed, this part is most likely to be damaged, which can be fatal to the unit 2. The danger can be avoided by applying this embodiment.

  According to the present embodiment described above, it is possible to provide a unit drop prevention structure and a unit drop prevention method that prevent the drawer structure from dropping when the unit is pulled out.

  The embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

1 Mounting cage 2 Unit 3 Guide rail 4 Guide rail 5a Guide plate (Unit 2 lower part)
5b Guide plate (Unit 2 upper part)
6 Roller 7 Elastic member 8 Handle 9 Stopper 10 Groove 11 Engagement part 12 Hook part of groove 10 of guide rail 3 13 Tip of guide rail 3 14 Projection part of groove 10 of guide rail 3 15 Protrusion part of guide rail 3 16 Guide groove 17 Fixed portion of stopper 9 18 Movable portion of stopper 9 20 Electronic device H Height of stopper 9 R Return direction of guide rail K Direction of expansion and contraction of elastic member 7 P Pull-out direction of unit 2 and guide rail 3 S Insertion shelf U Unplugging direction of unit 2 W1 Width of groove 10 W2 Width of groove 10 of meshing part 11

Claims (10)

A mounting cage;
A guide rail laid on the mounting cage and movable to the outside of the mounting cage;
A unit provided on the guide rail and slidably provided on a groove having a predetermined width.
The unit is
A stopper that slides into the groove of the guide rail;
The guide rail is
A structure for preventing a drop when the unit is removed, having an engaging portion that engages with the stopper at the end of the groove to stop the unit from sliding in the outside direction and guides the movement of the unit vertically upward. The unit according to claim 1, wherein the unit is a drop prevention structure when the unit is removed.
A structure for preventing the unit from dropping when the unit is removed, wherein the stopper and the meshing portion mesh with each other when the unit slides in the external direction, and the guide rail moves in the external direction. The unit according to claim 1 or 2, wherein the structure is prevented from dropping when the unit is removed.
A structure in which the stopper is configured to be released from the engaged state between the stopper and the engaging portion when the stopper moves in the vertically upward direction at the engaging portion. It is a fall prevention structure at the time of unit extraction according to any one of claims 1 to 3,
And an elastic member that urges the guide rail toward the inside of the mounting cage, which is the opposite direction to the outside. When the meshed state of the stopper and the meshing portion is released, the guide rail is A structure that prevents the unit from dropping when the unit is removed. It is a fall prevention structure at the time of unit extraction according to any one of claims 1 to 4,
The groove is
Extending to the front end of the guide rail, which is the outside direction of the meshing portion,
The stopper is
The guide rail is configured so as to freely fit in the groove from the tip and slide in the inner direction, and further move in the inner direction through the meshing portion. . It is a structure for preventing a drop when the unit is removed according to any one of claims 1 to 5,
The meshing part is
A recess that expands from the width of the groove as it proceeds in the external direction and returns to the width again at the outermost position of the meshing portion;
The stopper is
A fixed portion connected to the unit; and a movable portion extending from the fixed portion in the external direction;
The stopper is
When positioned in the groove, the fixed portion and the movable portion are linear due to the force by which the movable portion is pressed in the direction of the unit, and when positioned in the meshing portion, the elasticity of the movable portion is due to its own elasticity. A structure that prevents the drop when the unit is removed. The tip is configured to expand in the direction away from the unit. The unit according to any one of claims 1 to 6, wherein the unit is a fall prevention structure when the unit is removed.
The mounting cage is
An opening through the bottom is further provided,
The guide rail is
It further has a convex portion that moves in a state of being caught in the opening, and moves on a predetermined trajectory by being guided by the convex portion that moves along the opening,
The opening is
A structure for preventing a drop when the unit is removed, which is configured to define a moving section of the guide rail. A step in which a unit housed in the mounting cage slides in the direction of the outside of the mounting cage on a groove provided on a guide rail laid on the mounting cage and movable to the outside of the mounting cage;
A stopper of the unit that slides in the groove of the guide rail meshes with a meshing portion of an end of the groove to stop sliding of the unit in the external direction;
The step of the guide rail moving in the direction of the outside as the stopper of the unit and the meshing portion mesh with each other;
A step of preventing the unit from dropping when the unit is removed, comprising the step of moving the unit vertically upward by guidance of the meshing part to release the meshed state of the stopper and the meshing part. A method for preventing falling when the unit is removed according to claim 8,
Further, an elastic member that urges the guide rail toward the inside of the mounting cage, which is the direction opposite to the outside, releases the guide rail from the internal state after the stopper and the meshing portion are released. A method for preventing the unit from dropping when the unit is removed. A method for preventing fall when the unit is removed according to claim 8 or 9,
Further, the step of sliding the stopper in the inner direction freely fitted from the groove extending to the tip of the guide rail which is the outer direction of the meshing portion;
And a step of further moving in the internal direction after passing through the meshing portion.

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