JP2006222269A - Opening and closing structure of electronic equipment case - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve workability such as a maintenance check on an opening-and-closing structure of an electronic equipment case with an upper case freely opened and closed to a lower case for a maintenance check purpose or the like. <P>SOLUTION: The electronic equipment case 1 comprises the lower case 2 with its one surface opened and the upper case 3 with its one face opened, and the upper case 3 is supported to the lower case 2 in a freely opened and closed manner. The upper case 3 is supported to a pair of pivots provided to protrude on pivot bearings 9, 9 rotatably and in a movable manner to an arrow-A direction, and can be detached from the lower case 2 by movement. Closing the upper case 3 engages the shoulder 16a of the upper case 3 with the shoulder 6a of the lower case 2 to regulate movement to the arrow-A direction. Opening the upper case 3 90° makes the side plate 17 of the upper case 3 engaged with the pivot bearing 9 of the lower case 2 to regulate the opening at an angle of not less than 90°. Then, the holding body 21 of the upper case 3 is engaged with an elastic piece 11 of the lower case 2 and the falling of the upper case 3 to the lower case 2 side is prohibited. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an opening / closing structure of an electronic device housing in which an upper case can be opened and closed with respect to a lower case for maintenance inspection and the like.

For example, when this type of electronic device housing is hung on a wall and the place to be installed is at the corner of the room, if the opening angle of the upper case exceeds 90 °, it is perpendicular to the wall to which the electronic device housing is attached. Since the upper case hits the wall to be damaged and damages the wall or damages the upper case itself, a structure in which the opening angle of the upper case does not exceed 90 ° may be adopted in advance. Conventionally, a lower case having an opening on one side and an upper case having an opening on one side are provided, and a pair of pins projecting in opposite directions are provided at one end of the lower case, and the concave holes of the upper case are associated with these pins. The upper case is supported by the lower case so that it can be opened and closed centered on the pin. When the opening angle of the upper case reaches 90 °, a part of the upper case engages with the rotation support plate, and the upper case is 90 ° or more. There is one that restricts the opening (see, for example, Patent Document 1). In addition, the applicant could not find prior art documents closely related to the present invention by the time of filing other than the prior art documents specified by the prior art document information described in this specification. .
Japanese Patent No. 3242335 (paragraphs “0021”, “0022”, “0027” and FIGS. 1 to 4)

  In the open / close structure of the above-described conventional electronic device housing, maintenance and inspection must be performed while the upper case is attached to the lower case, so that there is a problem that the upper case may interfere with work and workability is poor. there were.

  The present invention has been made in view of the above-described conventional problems, and an object thereof is to improve workability at the time of maintenance and inspection.

  In order to achieve this object, the invention according to claim 1 is provided with one case opened on one side and the other case opened on one side, and a pivot provided in the one case is provided in the other case. In the opening / closing structure of the electronic device housing in which the other case is rotatably supported by one case so as to open and close each other with the pivot as the rotation center by engaging with the provided bearing hole, A pair of pivots is provided so that the respective axes are provided on the same straight line and the open ends are directed in the same direction, and the open ends of the two cases with respect to the open end of the other case with respect to one case. Movement restriction means for restricting movement and releasing the movement restriction by opening the other case with respect to the one case is provided.

  The invention according to claim 2 is the invention according to claim 1, wherein the movement restricting means is provided in a portion corresponding to the pivot of the open ends of the two cases.

  The invention according to claim 3 is the invention according to claim 1 or 2, further comprising holding means for holding the other case open by opening the other case by approximately 90 ° with respect to the one case. Is.

  According to the first aspect of the invention, by opening the other case with respect to one case, the other case can be removed from the one case and can be easily attached. Improves.

  According to the second aspect of the present invention, the opening angle at which the other case can be removed can be set, so that the other case can be prevented from being accidentally removed before the predetermined opening angle is reached. Therefore, there is no possibility of damaging an electrical component or the like mounted on one case by the other case to be removed.

  According to the invention of claim 3, this state is maintained by opening the other case by 90 ° with respect to the one case, and the fall of the other case to the one case side can be restricted. Since it is not necessary to support the other case, an operator's burden can be reduced. Also, when removing and attaching the other case from one case, the holding means can function as a guide, so that workability is improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a perspective view showing a state in which an electronic device housing according to the present invention is opened, FIG. 2 is a plan view of a lower case that also forms the electronic device housing, and FIG. 3 is a bottom view of an upper case that also forms the electronic device housing. 4A is a sectional view taken along line IV (A) -IV (A) in FIG. 1, FIG. 4B is a sectional view taken along line IV (B) -IV (B) in FIG. 1, and FIG. FIG. 6 is a cross-sectional view taken along the line VV in FIG. 6A, FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG. 2, and FIG. FIG. 6 shows a state where the upper case is assembled to the lower case.

  1 is a lower case 2 and an upper case 3 both of which are open and formed of plastic, and the lower case 2 is opened and closed so as to open and close the respective openings 2a and 3a. The upper case 3 is rotatably supported. The lower case 2 is integrally formed upright on both sides of the back plate 4, a back plate 4 formed in a rectangular shape, an upper plate 5 and a bottom plate 6 erected integrally with the upper and lower ends of the back plate 4, and the back plate 4. The left and right side plates 7 and 8 are formed. A step portion 5b, a step portion 7b, and a step portion 6b are connected to the outer edges of the opening ends 5a, 7a, and 6a of the top plate 5, the side plate 7, and the bottom plate 6, respectively. 7c is provided.

  A pair of shaft support portions 9, 9 formed in an inverted L shape are integrally erected on both ends of the back plate 4 in the arrow D direction and in the arrow AB direction. A pair of pivot shafts 10 and 10 projecting in the direction of arrow A are integrally provided at the tip end portions 9a and 9a of the shaft support portions 9 and 9, respectively. As shown in FIG. 5, these pivot shafts 10 and 10 are projected from the shaft support portions 9 and 9 so that the respective open ends 10a and 10a are directed in the direction of arrow A, and each of the pivot shafts 10 and 10 is provided. Are provided on the same straight line L. Reference numerals 11 and 11 denote elastic pieces provided between the shaft support portions 9 and 9. The elastic pieces 11 are integrally provided on the back plate 4 and project at the front end portion in the direction of the arrow AB. A strip 11a is provided.

  The upper case 3 is integrally formed upright on both sides of the surface plate 14, the surface plate 14 formed in a rectangular shape, the upper plate 15 and the bottom plate 16 erected integrally with the upper and lower ends of the surface plate 14. The left and right side plates 17 and 18 are formed. A step portion 15b, a step portion 18b, and a step portion 16b are connected to the inner edges of the opening ends 15a, 18a, and 16a of the top plate 15, the side plate 18, and the bottom plate 16, respectively. A convex portion 18 c that fits into the concave portion 7 c of the lower case 2 is provided.

  A pair of bearing pieces 19, 19 are integrally projected at both ends of the side plate 17 in the direction of the arrow AB, and the pivots 10, 10 of the lower case 2 described above are provided on these bearing pieces 19, 19. Engaging bearing holes 19a, 19a are provided. Between the bearing pieces 19 and 19, a pair of holding bodies 21 and 21 which are integrally provided upright from the surface plate 14 are provided, and the ends of the holding bodies 21 and 21 are as shown in FIG. As shown, projecting portions 21a and 21a extending in the direction of the arrow AB are projected. As will be described later, the convex portion 21 a of the holding body 21 abuts on the convex body 11 a of the elastic piece 11 by opening the upper case 3 with respect to the lower case 2 by approximately 90 °, and further the upper case 3. When it is slightly opened, it engages with the ridge 11a so as to ride on the ridge 11a by elastic deformation of the elastic piece 11.

  Thus, when the convex part 21a engages with the convex body 11a, the upper case 3 is maintained in the 90 ° open state, and the elastic piece 11 and the holding body 21 form a holding means. Further, when the upper case 3 is opened by about 90 ° with respect to the lower case 2 and the convex portion 21a is engaged with the ridge 11a, the side plate 17 of the upper case 3 is moved as shown in FIG. The lower case 2 engages with the back surfaces of the end portions 9a and 9a of the shaft support portions 9 and 9 to restrict the opening of the upper case 3 by 90 ° or more. A lock 22 is provided on the surface plate 14 of the upper case 3 and is locked by a key operation with the upper case 3 closed to the lower case 2.

  Next, a method for opening and closing the electronic device casing thus configured will be described. First, a method for assembling the upper case 3 to the lower case 2 will be described. With the bearing pieces 19, 19 of the upper case 3 being spaced apart from the pivots 10, 10 in the direction of arrow A, as shown by a two-dot chain line in FIG. Corresponding to the pivots 10 and 10 of the case 2. From this state, the upper case 3 is moved in the direction of the arrow B, and the pivots 10 and 10 are engaged with the bearing holes 19a and 19a of the bearing pieces 19 and 19, whereby the upper case 3 is pivoted as shown in FIG. , 10 so as to be rotatable with respect to the lower case 2.

  Next, the upper case 3 is rotated in the direction of arrow C, and the openings 2a and 3a are closed so that the opening ends 5a, 6a, and 7a and the opening ends 15a, 16a, and 18a abut each other. The step portions 15b, 16b, and 18b of the upper plate 15, the bottom plate 16, and the side plate 18 of the upper case 3 are engaged with the step portions 5b, 6b, and 7b of the upper plate 5, the bottom plate 6, and the side plate 7, respectively. When the step portion 16b of the bottom plate 16 of the upper case 3 is engaged with the step portion 6b of the bottom plate 6 of the lower case 2, the upper case 3 moves in the direction of the arrow A with respect to the lower case 2 as shown in FIG. The movement is restricted, and the bearing holes 19a, 19a of the bearing pieces 19, 19 do not come off from the open ends 10a, 10a of the pivots 10, 10. Therefore, the step 6b of the bottom plate 6 of the lower case 2 and the step 16b of the bottom plate 16 of the upper case 3 move the pivots 10, 10 of the upper case 3 relative to the lower case 2 toward the open ends 10a, 10a. First movement restricting means 25 for restricting is formed.

  Next, a method for maintaining and inspecting the electronic device housing 1 formed by abutting the opening ends 5a, 6a, 7a of the lower case 2 and the upper case 3 and the opening ends 15a, 16a, 18a in this way will be described. To do. First, the electronic device housing 1 is hung on the wall by attaching the upper plate 5 of the lower case 2 to the upper side and attaching the back side of the back plate 4 to the wall. In this state, when the maintenance and inspection of the electronic device housing 1 are performed, the lock 22 is unlocked and the upper case 3 can be opened and closed with respect to the lower case 2, and the upper case 3 is opened as shown in FIG. Is opened at an angle α, the engagement between the step 6b of the bottom plate 6 of the lower case 2 and the step 16b of the bottom plate 16 of the upper case 3 is released.

  Further, by opening the upper case 3 with respect to the lower case 2 by approximately 90 °, the protrusion 21a of the elastic piece 11 of the lower case 2 is attached to the protruding body 11a of the upper case 3 as shown in FIG. The convex portion 21a is engaged, and the fall of the upper case 3 toward the lower case 2 is restricted. At the same time, as shown in FIG. 4A, the side plate 17 of the upper case 3 abuts against the back surfaces of the tip end portions 9a and 9a of the shaft support portions 9 and 9 of the lower case 2 and opens the upper case 3 by 90 ° or more. Is regulated. Therefore, even if this electronic device housing 1 is attached to the end of the wall and there is another wall perpendicular to the wall to which the electronic device housing 1 is attached in the opening direction of the upper case 3. The upper case 3 opened against this wall does not hit. In addition, since the upper case 3 can be prevented from falling toward the lower case 2, the operator does not need to support the upper case 3, so the burden on the operator can be reduced.

  In this state, the step 16b of the bottom plate 16 of the upper case 3 is disengaged from the step 6b of the bottom plate 6 of the lower case 2, so that the upper case 3 is connected to the open ends 10a, 10a of the pivots 10, 10. That is, by moving in the direction of arrow A, the upper case 3 can be removed from the lower case 2 as shown by a two-dot chain line in FIG. At this time, the protrusions 21a of the holding body 21 of the upper case 3 are engaged with the protrusions 11a of the elastic piece 11 of the lower case 2, so that the protrusions 11a and the protrusions 21a are connected to the upper case. Since it functions as a guide when moving 3 in the direction of arrow A, the upper case 3 can be easily removed. Further, since the upper case 3 can be removed from the lower case 2, the workability is improved because the upper case 3 does not interfere with the work during maintenance and inspection.

  8 and 9 show a second embodiment of the present invention, FIG. 8 is a sectional view taken along the line VIII-VIII in FIG. 2 for explaining the open / closed state of the upper case, and FIG. 9 is an IX-IX in FIG. It is line sectional drawing. In both figures, FIG. 2 shows a state where the upper case is attached. The configuration other than that shown in both figures is the same as that of the first embodiment described above, and the same or equivalent members are denoted by the same reference numerals and detailed description thereof is omitted as appropriate.

  In the second embodiment, the second movement restricting means 30 for restricting the movement of the upper case 3 with respect to the lower case 2 toward the open ends 10a, 10a of the upper case 3 is provided in both cases 2, 3 is characterized in that it is provided at a portion corresponding to the pivot 10 of the three open ends 5a and 15a. That is, as shown in FIG. 8, an engaged portion 5 c that is thin and has a concave shape in a side view is provided at the opening end 5 a of the upper plate 5 of the lower case 2 in the direction of arrow D. It has been. Further, an engaging portion 15c that is thin and has a convex shape in a side view is provided at the opening end 15a of the upper plate 15 of the upper case 3 in the direction of arrow D.

  The engaged portion 5c and the engaging portion 15c are formed on the engaged portion 5c as shown in FIG. 9A in the state of FIG. 8A in which the upper case 3 is closed with respect to the lower case 2. The engaging portion 15c engages and restricts the movement of the upper case 3 in the direction of arrow A. In the state shown in FIG. 8C in which the upper case 3 is opened approximately 90 ° with respect to the lower case 2, the engaged portion 5c and the engaging portion 15c are disengaged, and the upper case 3 is moved in the direction of arrow A. It is configured to be movable.

  With this configuration, in the state shown in FIG. 8B in which the upper case 3 is opened with respect to the lower case 2 by an angle α (α <90 °), the engaged portion 5c is engaged with the engaged portion 5c. The state in which 15c is engaged is maintained. Therefore, when the opening angle α of the upper case 3 is relatively small, the upper case 3 is not moved by mistake. Therefore, when the upper case 3 is moved, the electrons mounted on the lower case 2 are not moved. Since the upper case 3 does not hit the parts or the like, the electronic parts or the like can be prevented from being damaged.

It is a perspective view which shows the state which opened the electronic device housing | casing which concerns on this invention. It is a top view of the lower case which comprises the electronic device housing which concerns on this invention. It is a bottom view of the upper case which comprises the electronic device housing which concerns on this invention. 4A is a sectional view taken along line IV (A) -IV (A) in FIG. 1, and FIG. 4B is a sectional view taken along line IV (B) -IV (B) in FIG. It is the VV sectional view taken on the line in FIG. It is the VI-VI sectional view taken on the line in FIG. FIG. 7 is a view taken along arrow VII in FIG. 1 for explaining an opening / closing operation of the electronic device housing according to the present invention. FIG. 8 is a cross-sectional view taken along the line VIII-VIII in FIG. 2 for explaining the open / closed state of the upper case in the second embodiment of the present invention. FIG. 5 is a cross-sectional view taken along line IX-IX in FIG. 2 according to the second embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Electronic device housing, 2 ... Lower case, 3 ... Upper case, 5c ... Engagement part, 6b, 16b ... Step part, 10 ... Axis, 10a ... Open end, 11 ... Elastic piece, 15c ... Engagement part, DESCRIPTION OF SYMBOLS 17 ... Side plate, 19 ... Bearing piece, 19a ... Bearing hole, 25 ... 1st movement control means, 30 ... 2nd movement control means.

Claims (3)

  One case opened on one side and the other case opened on one side, and pivoting the pivot by engaging the pivot provided in the one case into the bearing hole provided in the other case In an opening / closing structure of an electronic device housing in which the other case is rotatably supported by one case so as to open and close each other's opening as a center, the pivots are provided on the same straight line and the open ends are A pair is provided so as to be directed in the same direction, and the movement of the other case relative to one case to the open end side of the pivot is restricted to the open ends of the two cases, and the other case is the one case. An opening / closing structure for a housing of an electronic device, characterized in that a movement restricting means for releasing the movement restriction by opening is provided.   2. The opening / closing structure of an electronic device housing according to claim 1, wherein the movement restricting means is provided at a portion corresponding to the pivot of the open ends of the two cases. 3. The opening / closing structure of an electronic device housing according to claim 1, further comprising holding means for holding the other case in an open state by opening the other case with respect to the one case by approximately 90 degrees. Opening and closing structure of the electronic equipment housing.

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