JP2008156850A - Door body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To sure necessary rigidity while maintaining high adaptability to a dimensional change, related to a door body for opening and closing an opening of an electronic device enclosure. <P>SOLUTION: In this door body, a panel body 1 formed of a thin steel plate is reinforced by a reinforcement 2, and the reinforcement 2 is formed by connecting a vertical strut member 3 and a horizontal strut member 4 at least one of which is controlled in length in the shape of a cross. A panel side reinforcing part 5 having a U-shaped sectional part is bent and formed on each of four side edges of the panel body 1, and both ends of the vertical and horizontal strut members 4 of the reinforcement 2 are fixed to the panel side reinforcing parts 5 to reinforce the panel body 1. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a door body for opening and closing an opening or the like of an electronic device casing.

As a door body in which a panel body is reinforced with a reinforcing material, one described in Patent Document 1 is known. In this conventional example, the door body is formed by fixing a core assembly in which a core material is connected in a rectangular frame shape via a hollow joint to the back surface of the decorative panel.
JP-A-11-236790

  However, in the above-described conventional example, when the decorative panel is a material with low rigidity such as a thin steel plate, the rigidity of the door body is determined by the rigidity of the core assembly. For this reason, in order to give the door body the necessary rigidity, it is necessary to form the core assembly so as to exactly match the length and width of the decorative panel. If the dimensions of the door body change, a new core assembly is set. There is a problem that needs to be done.

  The present invention has been made to eliminate the above-described drawbacks, and an object of the present invention is to provide a door body that can secure necessary rigidity while maintaining high flexibility with respect to dimensional changes.

  In the present invention, the door body is formed by reinforcing the back surface of the panel body 1 formed of a thin steel plate with the reinforcing body 2. Although the panel body 1 formed of a thin steel plate itself lacks rigidity, the panel body 1 is excellent in bending workability. Therefore, the auxiliary panel side reinforcing portion 5 is formed on the four side edges using this.

  On the other hand, the reinforcing body 2 is formed by connecting the vertical strut members 3 and the horizontal strut members 4 in a cross shape. When both ends of the vertical and horizontal strut members 4 are connected to the panel-side reinforcing portion 5, the panel-side reinforcing portion 5 Since the displacement of the panel body 1 is regulated so as to maintain the interval between the reinforced edges and the relative position, the rigidity of the entire door body is improved as a result.

  In addition, since the reinforcement of the panel body 1 is performed by connecting both ends of the cross-shaped reinforcement body 2 to the panel-side reinforcement portion 5, it is compared with the case where the reinforcement body 2 is framed so as to match the panel edge. Thus, it is possible to easily adapt to the panel body 1 of various sizes simply by adjusting the length of the vertical and horizontal strut members 4. As a result, the flexibility with respect to the dimensional change of the door body is improved, and the versatility of the reinforcing body 2 is also improved.

  According to the present invention, necessary rigidity can be ensured while maintaining high flexibility with respect to dimensional changes.

  FIG. 1 shows an embodiment of the present invention configured as a door body of an electronic device housing 8. The inside of the apparatus housing 8 is partitioned into a plurality of stages by shelves (not shown), and an electronic device 9 is placed on each stage. A cooling fan 9a that performs cooling is attached to all or an appropriate number of electronic devices 9 that require cooling.

  In addition, a door body that closes an opening through which the electronic device 9 is taken in and out of the device housing 8 is rotatably attached to the device housing 8 via a hinge. As shown in FIG.1 (b), a door body is formed by attaching the reinforcement body 2 to the panel body 1 previously shape | molded by the predetermined magnitude | size. The panel body 1 is formed of a thin steel plate, and a punching metal having a large number of small holes 1a is used to ensure ventilation between the inside of the apparatus housing 8 and the outside air. Moreover, the handle etc. outside a figure are fixed to the panel body 1 as needed.

  The four side edges of the panel body 1 are bent back in a U-shape to form the panel-side reinforcing portion 5. As shown in FIG. 2 (b), the panel-side reinforcing portion 5 formed on the upper and lower edges is also used as the hinge forming portion 5a. Therefore, the edge portion is further bent to form a hollow rectangular cross section for reinforcement. Is done. Further, as will be described later, in order to make the installation height of the horizontal strut member 4 variable, a slit 5 b that is long in the vertical direction is formed in the back wall of the panel-side reinforcing portion 5 at the side edge.

  As shown in FIGS. 2 and 3, the reinforcing body 2 for reinforcing the panel body 1 formed as described above is formed in a cross shape in front view by connecting the horizontal strut member 4 to the vertical strut member 3. . In this embodiment in which the vertical dimension is variable, the vertical column member 3 is formed by connecting the lower column 11 shown in FIG. 3 (a) and the upper column 12 shown in FIG. 3 (b).

  Screw insertion holes 11a are formed in the lower column 11 at appropriate intervals, and dimension adjusting slits 12a are formed in the upper column 12 at positions where the screw insertion holes 11a can be matched. Further, at the upper end of the upper support column 12 and the lower end of the lower support column 11, screw insertion holes 5 c to be screwed into the panel-side reinforcing portion 5 are opened.

  At the center and both ends of the horizontal strut member 4, burring is performed to form screw holes 4a and 4b. The screw holes 4b formed at both ends are used for screwing the fixing pieces 13 to the panel body 1 as will be described later, and the screw holes 4a at the center are used for screwing the vertical column members 3. . In addition, a Z-shaped guide member 4c is fixed to the center portion of the horizontal support member 4 so as to sandwich the screw hole 4a. The guide member 4c sandwiches both side edges of the vertical column member 3 and guides the slide operation of the vertical column member 3 to be described later.

  Therefore, in this embodiment, as shown in FIG. 3 (d), the reinforcing body 2 is connected by the screws 2a in a state where the horizontal strut member 4, the lower strut 11, and the upper strut 12 are laminated in this order. The screw 2a passes through the dimension adjusting slit 12a of the upper support column 12 and the screw insertion hole 11a of the lower support column 11, and is screwed into the screw hole 4a of the horizontal support member 4, thereby fastening the vertical and horizontal support members 3 and 4 firmly. .

  When the screw 2a is loosened from this state, when the screw 2a is tightened at an appropriate position at which the upper support 12 can be moved up and down, the superposition dimension of the upper support 12 and the lower support 11 changes. The length of 3 changes. In this way, with the length of the vertical strut member 3 adjusted to match the vertical dimension of the panel body 1, the end portions of the vertical and horizontal strut members 3, 4 are connected to the panel side reinforcing portion 5 of the panel body 1. The door body is completed by fixing to.

  In a state where the reinforcing body 2 is fixed to the panel body 1, even if a force that twists the surface to which the opposing side belongs is applied to the panel body 1, the reinforcing body 2 is loaded and deformed. In order to regulate, the rigidity required for the whole door body is exhibited.

  Moreover, in this embodiment, the door body can change the installation height of the horizontal strut member 4. In order to change the installation height of the horizontal strut member 4, fitting folding pieces 4 d are formed at both ends of the horizontal strut member 4. As shown in FIG. 2 (c), the horizontal strut member 4 is fixed to the panel-side reinforcing portion 5 in a state in which the fitting bent piece 4 d of the horizontal strut member 4 is fitted into the slit 5 b of the panel-side reinforcing portion 5. Then, the fixing piece 13 is passed through the horizontal strut member 4 through the screw insertion hole 13a formed in the fixing piece 13 and screwed into the screw hole 4b of the horizontal strut member 4, so that the fixing piece 13 of the panel side reinforcing portion 5 It is carried out by pressing against the horizontal strut member 4 using elasticity and pinching it.

  The installation height of the horizontal support member 4 is changed by changing the connection position of the horizontal support member 4 to the vertical support member 3 by changing the screw insertion hole 11a of the vertical support member 3 through which the screw 2a is inserted. The slit 5b of the panel side reinforcing portion 5 enables the horizontal strut member 4 to be fixed to the panel body 1 at the changed position.

  Therefore, in this embodiment, as shown in FIG. 4A, when the horizontal strut member 4 faces the cooling fan 9a of the electronic device 9 accommodated in the apparatus housing 8, it interferes with the cooling airflow. As shown in FIG. 4B, the position of the horizontal strut member 4 can be changed to improve the cooling efficiency.

  In addition, although the case where the reinforcing body 2 is formed so as to be dimensionally adjustable in the vertical direction has been described above, the dimension can be adjusted in the horizontal direction or can be adjusted in both directions.

  Moreover, although the both ends of the vertical and horizontal column members 3 and 4 are directly fixed to the panel body 1, as shown in FIG. 5, the auxiliary beam portion 6 along the longitudinal direction of the panel side reinforcing portion 5 is connected to the vertical and horizontal column members 3 and 4. It is also possible to fix the reinforcing body 2 to the panel body 1 via the auxiliary bar portion 6. When a deformation force is applied to the panel body 1, a large load is applied to the joint portion between the panel body 1 and the reinforcement body 2, but the joint portion between the panel body 1 and the reinforcement body 2 through the auxiliary crosspiece 6. When the area is increased, stress concentration on the panel body 1 can be prevented, so that harmful deformation of the panel body 1 can be reliably prevented.

  Furthermore, as shown in FIG. 6, openings 4e are formed at predetermined intervals on the horizontal support member 4, and the cooling fan 7 is screwed so that the ventilation openings 7a of the cooling fan 7 are positioned in the openings 4e. Fix to the column member 4. Then, the power cord 7b of the cooling fan 7 is gathered and passed through the U-shaped hollow portion of the panel side reinforcing portion 5 and connected to a power source (not shown) by the connector 7c. As described above, when the cooling fan 7 is fixed to the horizontal support member 4, cooling air can be blown into the apparatus housing 8.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows this invention, (a) is a perspective view which shows the state in which the door body was attached to the electronic device housing | casing, (b) is a perspective view which shows the attachment state to the panel body of a reinforcement body. It is a figure which shows the detail of a door body, (a) is a front view of a door body back surface, (b) is the 2B-2B sectional view taken on the line of (a), (c) is 2C-2C sectional view taken on the line. It is a figure which shows a reinforcement body, (a) is the principal part enlarged view of a lower support | pillar, (b) is the principal part enlarged view of an upper support | pillar, (c) is 3C-3C sectional drawing of Fig.2 (a). It is a figure which shows the position change of a horizontal strut member, (a) is a figure before a position change, (b) is a figure after a position change. It is a figure which shows the modification of this invention, and is a perspective view which shows the attachment state to the panel body of a reinforcement body. It is a figure which shows the 2nd modification of this invention, (a) is a rear view of the back surface of a door body, (b) is a front view which shows the state which attached the door body to the electronic device housing | casing, (c) is an electronic device. It is a top view which shows the state in which the door body was attached to the housing | casing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Panel body 2 Reinforcement body 3 Vertical strut member 4 Horizontal strut member 5 Panel side reinforcement part 6 Auxiliary crosspiece part 7 Cooling fan

Claims (4)

A door body in which a panel body formed of a thin steel plate is reinforced by a reinforcing body,
The reinforcing body is formed by connecting a longitudinal strut member and a lateral strut member, at least one of which is adjustable in length, in a cross shape,
On the four side edges of the panel body, a panel-side reinforcing portion having a U-shaped cross-section is bent,
The door body which fixed the both ends of the vertical and horizontal support | pillar member of the said reinforcement body to the panel side reinforcement part, and reinforced the panel body.   The door body according to claim 1, wherein a connecting position of the horizontal strut member to the vertical strut member is variable.   The door body according to claim 1 or 2, wherein at least one of the vertical and horizontal strut members of the reinforcing body is formed in an H shape by connecting auxiliary bars along the panel side reinforcing portion to both ends.   The door body according to claim 1, wherein a cooling fan is fixed to the horizontal support member.

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