JP2008004709A - Mechanism and device for preventing simultaneous pulling-out of multiple units - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mechanism and a device for preventing the simultaneous pulling-out of multiple units capable of making a stabilizer for a rack-overturn prevention and a stabilizer for the rack-overturn prevention unnecessary or a small size. <P>SOLUTION: The side face of the unit slidably supported to a rack by a sliding rail or the like has a side-face plate with four grooves, and a stopper with three projections slidably supported in the rotating direction and the vertical direction in approximately the same length as the height of the unit. The simultaneous pulling-out of the multiple units is prevented by fitting the projections for the stoppers and the grooves for the side-face plates for the units. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an electronic apparatus having a unit that is pulled out by a slide rail or the like, such as a disk array device, and relates to a structure in which a plurality of units cannot be pulled out simultaneously.

  A rack-structured electronic device generally has a structure in which units of a plurality of electronic devices are mounted on a rack and each unit can be pulled out by a slide rail or the like for maintenance and other conveniences. FIG. 1 is an external view of a general electronic device having such a rack structure. In FIG. 1, 1 is a rack, 2 is a unit, 3 is a stabilizer, and 4 is a slide rail. FIG. 1A is an external view of an electronic device having a rack structure, and FIG. 1B is an external view showing a state in which a unit 2 mounted on the rack 1 is pulled out to the front by a slide rail 4, and the electronic device is overturned. The stabilizer 3 for preventing is provided in the lowest part in the form which touches a floor surface. FIG. 1C is an external view showing that there is a risk of falling when a plurality of units 2 are pulled out at the same time. In particular, when a plurality of upper units 2 are pulled out at the same time, a considerably large stabilizer 3 is provided. However, it becomes unstable, and even a slight impact can cause it to fall.

  Therefore, in order to prevent the rack 1 itself from falling when each unit 2 is pulled out, the conventional stopper structure has a structure in which the other units 2 cannot be pulled out one by one. For example, Patent Document 1 discloses a structure in which a lock pin is engaged with a slit provided on a side surface of a unit and locked by a vertical movement of a shaft with a lock pin.

However, in Patent Document 1, when a plurality of slits are to be pulled out at the same time, the plurality of slits can slide from the inclined portion to the horizontal portion. Even when trying to pull out a plurality at the same time, there was no effective stopper structure.
Japanese Utility Model Publication No. 58-049477 (page 1-2, FIG. 1-5)

  An object of the present invention is to provide a structure in which a plurality of units mounted in a rack cannot be pulled out at the same time for the purpose of preventing the rack from toppling, and a stabilizer for preventing the rack from falling is unnecessary or small. And

  In the rack overturn prevention structure according to the present invention, the side surface of the unit that is slidably supported on the rack by a slide rail or the like, the side plate having four grooves, the length approximately the same as the height of the unit, and the rotational and vertical directions And a stopper having three protrusions supported slidably, and the protrusion of the stopper and the groove of the unit side plate are fitted to prevent a plurality of units from being pulled out simultaneously.

  The rack overturn prevention structure according to the present invention can prevent a plurality of units from being pulled out at the same time with a simple stopper structure, so there is no need to worry about rack overturning when the unit is pulled out, and a small stabilizer is sufficient. Less. Furthermore, when the stopper is broken, it is only necessary to replace the stopper at a corresponding portion, and the repair is easy.

To prevent the rack from toppling over, the structure is such that a plurality of units mounted on the rack cannot be pulled out at the same time, and a rotatable stopper having three protrusions provided on the side of the unit and four grooves provided on the side plate. In combination with, a structure that prevents simultaneous withdrawal was realized.
(Example)
FIG. 2 is a perspective view of a unit according to one embodiment of the present invention, and shows the appearance of four pullable units 2 provided with slide rails 4 and stopper structures on the side surfaces. FIG. 3 is a side view showing a unit storage state of one embodiment of the present invention. As an example, FIG. 3 shows a state in which two units 2 are mounted and stored in the rack 1 and are not pulled out. 3, 5 is a stopper, 6 is a side plate, 7 to 9 are projections A, B, and C provided on the stopper 5, and 10 is a shaft of the stopper 5.

  Next, the structure of the stopper 5 will be described with reference to FIGS. FIG. 4 is an external view of a plurality of stoppers of the present invention, and FIG. 5 is an external view of a single stopper. In FIG. 5, reference numeral 11 denotes a ring-shaped support ring that carries the stopper shaft 10, and 12 denotes upper and lower surfaces of the stopper 5. The protrusion A-7 and the protrusion B-8 are provided at substantially the same angular position with respect to the shaft 10, and the protrusion C-9 is provided at a position at an angle of approximately 90 degrees with respect to the protrusion A-7. A single stopper 5 composed of such 7 to 11 members is combined with the same number of units mounted on the rack 1 to form a plurality of stoppers as shown in FIG. It is attached to the side part of the unit, which will be described later, by two supporting upper and lower support tabs 11, and each stopper is rotated and vertically moved in a state where it is simply overlapped with the other upper and lower stoppers by the upper and lower surfaces 12. It is slidably supported.

  Next, details of the structure on the unit side will be described with reference to FIGS. FIG. 6 is a perspective view of the unit details of the present invention, and FIG. 7 is a side view of the unit details of the present invention. 6 and 7, reference numeral 13 denotes a groove A provided in the side plate 6 below the slide rail 4 of the unit 2, reference numeral 14 denotes a groove B provided in the side plate 6, and reference numeral 15 denotes a rack rear of the upper part of the side plate 6. The grooves C and 16 provided in the direction are the grooves D provided in the front of the rack at the bottom of 6. In addition, the left and right uppermost positions of the groove A-13 are substantially the same height, and the lowermost point on the right side of the groove A-13 in FIG. A side surface portion of the side plate 6 having no groove is defined as 18. 1 to 7 and the following drawings, the same components are denoted by the same reference numerals, and description thereof is omitted.

  With such a stopper structure and a groove structure provided in the unit, FIG. 8 is an explanatory diagram of the state 1 where one unit is pulled out, and FIG. 9 is an explanatory diagram of the state 2 where one unit is pulled out. Explain how the other units cannot be pulled out. FIG. 8A is a perspective view in the case where the second unit is pulled out from the bottom of four units as an example, and an enlarged view showing the relationship between the stopper and the groove is a circle in FIG. 8B on the left side. Shown in box. In FIG. 8, the protrusion A-7 of the stopper is at the position of the lowest point 17 on the right side of the groove A-13 in FIGS. 6 and 7 when the unit is not pulled out. By moving upward from the lowest point 17 to the left side along the groove of the unit, the stopper moves upward. For this reason, in the unit mounted above the unit, the protrusion A-7 is pushed up directly from the position 17 of the groove A of each unit, so that the protrusion A-7 and the groove A-13 Since it becomes a fitted state and functions as a stopper, all the units 2 mounted on the upper part of the unit have a structure that cannot be pulled out.

  When the unit is further pulled out from the state of FIG. 8, as shown in the explanatory diagram of the state 2 in which one unit is pulled out in FIG. 9, the stopper A-7 rotates about 90 degrees to the right as the unit is pulled out. The stopper C-9 enters the position of the groove C-15 while the shaft 10 rotates to the right, but the unit 2 can be further pulled out because there is no structure in contact with the stopper C-9 on the left side.

  FIG. 10 is an explanatory diagram showing a state in which two units arranged side by side according to the present invention are pulled out at the same time. When two lower units are pulled out in FIG. As described above, since the protrusion A-7 enters the groove A-13, it cannot be pulled out. Next, trying to pull out the lowest unit, the stopper A shaft corresponding to the lowest is lifted by fitting the groove A-13 and the projection A-7, and the upper unit is pulled out almost simultaneously. When the protrusion B-8 of the lowermost stopper enters the groove B-14 of the side plate of the upper unit, it cannot be pulled out any further. At the same time, since the shaft 10 cannot rotate any more, the lowermost unit cannot be pulled out any more by the projection A-7 belonging to the same stopper, and even if two units are pulled out almost simultaneously, It can only be withdrawn and no more. If the width of the groove B-14 is made larger, it can be made to function in the same way even at almost the same time, not at the same time. Further, as described above, the unit mounted on the upper part cannot be pulled out because the protrusion A-7 enters the groove A-13.

  11 and 12 illustrate a state in which two separated units are pulled out simultaneously. In the explanatory diagram of the state 1 in which two distant units are pulled out at the same time in FIG. 11, when trying to pull out the third unit from the bottom and the third unit from the bottom almost simultaneously, the second and fourth units not pulled out The unit cannot be pulled out because the protrusion A-7 enters the groove A-13, as in the description of FIG. The third unit to be pulled out almost at the same time cannot be pulled out further because the projection B-8 enters into the groove B-14, but is shown in the explanatory diagram of the state 2 in which two distant units in FIG. 12 are pulled out simultaneously. Thus, when the lowermost unit is further pulled out, the stopper shaft 10 rotates and the projection C-9 comes to the position of the groove C-15. Can be pulled out further.

  FIG. 13 shows a case where the lower unit is pulled out while the upper unit is already pulled out. Since the upper unit is pulled out, the protrusion B hits the lower surface of the side plate, so that the stopper does not go up any further in the lower unit. Therefore, when the lower unit, that is, the second unit from the bottom in the figure, is to be pulled out, the protrusion A cannot be raised, so that the protrusion C-9 hits the side surface portion 18 without the groove of the side plate 6. Since the stopper cannot rotate and the protrusions A-7 and C-9 work in a locked state with respect to the side plate 6, the unit 2 cannot be pulled out.

  FIG. 14 is an explanatory diagram of stopper replacement according to the present invention. In the present invention, even when the stopper 5 is broken, a plurality of stoppers are separated for each single stopper, so that it is not necessary to replace the entire stopper.

External view of a general electronic device with a rack structure Unit perspective view of one embodiment of the present invention The side view which shows the unit accommodation state of one Example of this invention External view of a plurality of stoppers of the present invention External view of the stopper according to the present invention Detailed perspective view of the unit of the present invention Side view of unit details of the present invention Explanatory drawing of the state 1 which pulled out one unit of the present invention Explanatory drawing of the state 2 which pulled out one unit of the present invention Explanatory drawing of the state where two units lined up according to the present invention are pulled out at the same time Explanatory drawing of the state 1 which pulled out two separate units of the present invention at the same time Explanatory drawing of the state 2 which pulled out two separate units of the present invention at the same time Case where the lower unit is pulled out while the upper unit of the present invention is already pulled out Explanatory drawing of stopper replacement of the present invention

Explanation of symbols

1 Rack 2 Unit 3 Stabilizer 4 Slide Rail 5 Stopper 6 Side Plate 7 Protrusion A
8 Protrusion B
9 Protrusion C
10 shaft 11 ring 12 upper and lower surfaces of stopper 13 groove A
14 Groove B
15 Groove C
16 Groove D
17 Bottom point 18 Side face without groove

Claims (2)

  The unit supported so as to be able to be pulled out by the rack is provided with a side plate having a plurality of grooves, and a stopper having a plurality of protrusions, which is supported to be slidable in the rotation and vertical directions, approximately the same length as the unit. A unit simultaneous withdrawal preventing mechanism for preventing simultaneous withdrawal of a plurality of units according to a fitting state between the groove of the side plate and the stopper. A plurality of units supported in a multi-stacked state in a vertical direction on a rack and capable of being pulled out in a horizontal direction;
Single unit having a cylindrical shaft, provided on the side of the unit in a multi-stacked state, with the same number as the unit mounted on the rack, supported by a ring-shaped canag on the side of the unit so that it can rotate and slide up and down A plurality of stoppers comprising stoppers;
A side plate provided on a side surface of the unit and having a plurality of grooves;
The single stopper is
Two protrusions A and C extending in a direction substantially perpendicular to each other at the same height and in the horizontal plane direction with respect to the stopper shaft surface, and one position above the protrusion and approximately the same size as the unit height A projection B;
The side plate includes a groove A composed of a vertical portion, a horizontal portion, and an inclined portion that are continuous along the drawing direction of the unit, and a semicircular groove B that fits the diameter of the protrusion,
Longitudinal grooves C and D that are long in the pull-out direction provided at the position of the rear surface of the rack at the top of the side plate and the position of the front surface of the rack at the bottom of the side plate,
Is provided,
In conjunction with the operation of pulling out the unit, as the protrusion A of the stopper moves / rises along the inclination direction of the groove A, the shaft rotates / rises, and the unit mounted above the unit When the protrusion C corresponding to the unit comes to the position of the groove C, the unit can be further pulled out.
In the upper unit when trying to pull out a plurality of units at the same time, when the protrusion B of the stopper enters the groove B, further pulling out is prevented,
When trying to pull out the lower unit of the unit that has already been pulled out, the protrusion C hits a portion of the side plate that does not have a groove and the stopper cannot rotate, so that further pulling is prevented.
A device for preventing simultaneous withdrawal of a plurality of units.

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