JP4052161B2 - Opening and closing structure of the housing - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an opening / closing structure for a housing such as an electronic device suitable for maintenance inspection and repair.
[0002]
[Prior art]
In a conventional case opening / closing structure, a first support shaft and a second support shaft formed with a reduced diameter portion are provided on one housing, and the first or second support shaft is fitted on the other housing. There is a type in which a first or second support piece having a support hole is provided, and a slit through which a reduced diameter portion can pass is provided in the support hole of the second support piece (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. .
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 5-28732 (paragraphs “0012” and “0013”, FIGS. 1 to 5)
[0004]
[Problems to be solved by the invention]
In the above-described conventional casing opening and closing structure, the second support piece is inserted into the reduced diameter portion of the second support shaft through the slit in order to attach the second casing to the first casing. Later, it is necessary to align the support hole of the first support piece with the first support shaft. Moreover, since it is necessary to attach the rotation arm which regulates the opening amount of a 2nd housing after inserting the support hole of a 1st and 2nd support piece in the 1st and 2nd support shaft, it is the 2nd housing. There was a problem that the attaching and detaching work of was complicated. In addition, since the support shaft is fitted to the support hole to be rotatable, it is necessary to provide a gap between the support shaft and the support hole, and between the first housing and the second housing. There is also a problem that dust easily enters.
[0005]
The present invention has been made in view of the above-described conventional problems, and a first object is to facilitate the attachment and detachment of the case. The second purpose is to eliminate the gap between the two cases.
[0006]
[Means for Solving the Problems]
To achieve this object, according to a first aspect of the present invention, there is provided a housing opening / closing structure in which an upper case that opens and closes an opening of a lower case is detachable from the lower case. A lower bracket formed by a horizontal portion of the first horizontal portion and a first vertical portion formed by bending the front end side of the first horizontal portion at a right angle, and an upper bracket provided on one end side of the upper case. The upper bracket is mounted on the first horizontal portion of the lower bracket, and the first vertical portion of the lower bracket is bent at a right angle at one end of the mounting portion. A bent portion provided with a slit-shaped guide hole that is engaged with the engaging portion, and a locking portion that is bent at a right angle to the other end of the bent portion in a direction opposite to the mounting portion. Configure and before By Taise' each of mounting portion and the locking portion of the upper-side bracket on the front and back of the first horizontal portion of the lower side bracket, the opening of the lower case is closed by the upper case.
Accordingly, the opening of the lower case is closed by the upper case in a state where the first horizontal portion of the lower bracket is sandwiched between the placement portion and the locking portion of the upper bracket. Further, the lower case bracket is engaged with the guide hole of the upper side bracket and the engagement is released, whereby the upper case is attached and detached with the lower side bracket as a guide.
[0007]
The invention according to claim 2 is the invention according to claim 1, wherein the mounting portion and the locking portion of the upper side bracket are brought into contact with the front and back of the first vertical portion of the lower side bracket. As a result, the opening of the lower case is opened.
Therefore, the opening of the lower case can be opened without removing the upper case.
[0008]
The invention according to claim 3 is the invention according to claim 1 or 2, wherein an inclined portion is provided between the first horizontal portion and the first vertical portion of the lower bracket.
Therefore, the guide hole of the upper side bracket can be smoothly moved between the first horizontal portion and the first vertical portion of the lower side bracket.
[0009]
According to a fourth aspect of the present invention, in the first or third aspect of the present invention, the second bracket is formed by bending the upper end of the first vertical portion of the lower side bracket at a right angle to the first horizontal portion side. A horizontal portion is formed, and a second vertical portion that is bent at a right angle upward is provided at the tip of the second horizontal portion.
Accordingly, the upper case keeps the opening of the lower case open by engaging the engaging portion of the upper side bracket with the second vertical portion and engaging the mounting portion with the first vertical portion. Can do.
[0010]
According to a fifth aspect of the present invention, in the first to fourth aspects of the invention, the lower case and the upper case are engaged with the other end sides of the lower case by closing the opening of the lower case. An engagement means for releasing the engagement by moving the upper case in the horizontal direction is provided.
Therefore, the opening of the lower case is closed by the upper case by the two engaging means provided at both ends of the housing.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a cross-sectional view taken along line II in FIG. 2, FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1, FIG. 3 is a perspective view showing an exploded main part, and FIG. 2 is a cross-sectional view taken along the line II in FIG. 2 for explaining the opening and closing operation, and FIG. 5 is a cross-sectional view taken along the II line in FIG. Shows a state in which the opening of the lower case is closed by the upper case, and FIG. 4B shows a state in which the upper case is moved in the horizontal direction with respect to the lower case. 6 and 7 are cross-sectional views taken along the line VI-VI in FIG. 2, which shows only the main part for explaining the opening / closing operation of the housing, and FIG. 6 (a) shows a state where the upper case is slightly opened. FIG. 7B shows a state where the upper case is opened at an angle A, FIG. 7A shows a state where the upper case is opened at an angle B, and FIG. 7B shows a state where the upper case is removed. Show.
[0012]
1 is constituted by a lower case 2 whose upper part is opened by a bottom part 4 and an enclosure wall 5 and an upper case 3 which is opened by an upper part 6 and an enclosure wall 7. . The opening of the lower case 2 is closed by the upper case 3 by bringing the opening end of the lower case 2 and the opening end of the upper case 3 into contact with each other by a method described later. A column 10 is erected integrally with the bottom 4 of the lower case 2, and a support plate 11 is attached to the column 10 in a horizontal state.
[0013]
Reference numeral 13 denotes a front engaging means provided on the front side of the housing 1, which projects integrally with the front lower bracket 14 fixed to the support plate 11 and the inside of the enclosure wall 7 of the upper case 3. The front upper bracket 16 is attached to the support column 15. The front lower bracket 14 has a crank-shaped cross section, and an engaging piece 17 positioned in a horizontal state is formed on the upper part. The engaging piece 17 has a notch 18 as shown in FIG. Is provided.
[0014]
The front upper bracket 16 extends downward, and is provided with an engaged piece 19 formed in an L shape in a side view at the lower end. The engaged piece 19 is as shown in FIG. Further, in a state where the opening of the lower case 2 is closed by the upper case 3, the engagement piece 17 faces the lower surface of the engagement piece 17 from the notch 18, and the engaged piece 19 is opposed to the engagement piece 17. Touch. On the other hand, when the upper case 3 is moved to the left as shown in FIG. 4 with respect to the lower case 2, the engaged piece 19 is positioned in the notch 18 of the engaging piece 17, and the engaged piece 19 and The engagement with the engagement piece 17 is released.
[0015]
In FIG. 1, reference numeral 20 denotes a fixing plate having an inverted L-shaped cross section. As shown in FIG. 3, the vertical portion 21 is provided with an insertion hole 22.
[0016]
In FIG. 3, reference numeral 25 denotes rear engagement means provided on the rear side of the housing 1, and includes a rear lower bracket 26 provided on the lower case 2 side and a rear upper bracket provided on the upper case 3 side. 27. The rear lower bracket 26 is composed of a first horizontal portion 28 and a first vertical portion 29 formed by bending the front end side of the first horizontal portion 28 at a right angle. These first horizontal portions An inclined portion 30 that forms an angle of 45 ° with the horizontal plane is provided between the first vertical portion 29 and 28.
[0017]
The first horizontal portion 28 is provided with arm portions 31 extending left and right, and both end portions of the arm portions 31 are erected integrally with the bottom portion 4 of the lower case 2 as shown in FIG. Attached to the column 32. At the upper end of the first vertical portion 29 of the rear lower bracket 26, a second horizontal portion 33 formed at a right angle on the first horizontal portion 28 side is provided, and this second horizontal portion 33. A second vertical portion 34 that is bent at a right angle toward the upper side is provided at the tip.
[0018]
As shown in FIG. 3, the rear upper bracket 27 is bent at a right angle to a mounting portion 35 mounted on the first horizontal portion 28 of the rear lower bracket 26 and one end of the mounting portion 35. A bent portion 37 provided with a slit-shaped guide hole 36 formed and engaged with the first vertical portion 29, and the other end of the bent portion 37 is perpendicular to the mounting portion 35. And a locking portion 38 formed in a bent shape. The distance D between the mounting portion 35 and the locking portion 38 is formed slightly larger than the thickness of the rear lower bracket 26 as shown in FIG. In addition, a fixed portion 39 that is bent at a right angle in the opposite direction to the bent portion 37 and has a screw portion 40 at the center is provided at the other end of the mounting portion 35.
[0019]
As shown in FIG. 3, arm portions 41 and 41 (one arm portion 41 is not shown) bent upward at right angles are provided at the left and right ends of the fixed portion 39, At the upper ends of these arm portions 41, 41, attachment portions 42, 42 formed at right angles are provided. As shown in FIG. 1, the attachment portion 42 is attached to a column 43 that protrudes integrally with the enclosure wall 7 of the upper case 3, so that the fixed portion 39 of the rear upper bracket 27 is exposed from the enclosure wall 7. To do. Reference numeral 44 denotes a screw having a knob for manual rotation, which is inserted into the insertion hole 22 of the fixing plate 20 and screwed into the screw portion 40 of the rear upper bracket 27.
[0020]
Next, a method for attaching and detaching the upper case in the casing opening and closing structure having such a configuration will be described. First, a method of attaching the upper case to the lower case in order to close the opening of the lower case with the upper case will be described.
As shown in FIG. 7B, the upper case 3 is rotated by approximately 90 ° in the clockwise direction in the drawing so that the bent portion 37 of the rear upper bracket 27 is in a horizontal state, and the upper case 3 is lowered. As a result, the second vertical portion 34 of the rear lower bracket 26 is engaged with the guide hole 36 as shown in FIG.
[0021]
Next, while rotating the upper case 3 counterclockwise, as shown in FIG. 6A, the first vertical portion 29 is engaged with the guide hole 36 from the second horizontal portion 33, and further the upper case As shown in FIG. 5 (b), the guide hole 36 is engaged from the inclined portion 30 to the first horizontal portion 28 while rotating 3 in the counterclockwise direction. In this state, by moving the upper case 3 to the right in the figure, the mounting portion 35 and the locking portion 38 of the rear upper bracket 27 are moved to the first horizontal portion as shown in FIG. 28 is in contact with the upper and lower surfaces (front and back) 28, and the engaged piece 19 of the front upper bracket 16 is in contact with the lower surface of the engaging piece 17 of the front lower bracket 14.
[0022]
At the same time, the fixed portion 39 of the rear upper case 26 comes into contact with the vertical portion 21 of the fixing plate 20, and the screw portions 40 and the insertion holes 22 face each other. The lower case 2 is fixed to the upper case 3 by inserting the screw 44 through the insertion hole 22 and screwed into the screw portion 40, and the opening of the lower case 2 is closed by the upper case 3.
[0023]
As described above, the distance D between the mounting portion 35 and the locking portion 38 is formed slightly larger than the thickness of the rear lower bracket 26, that is, the first horizontal portion 28. The engaging portion 38 is in contact with the upper and lower surfaces of the first horizontal portion 28 in close contact with each other. Therefore, it is possible to prevent a gap from being generated between the open end of the upper case 3 and the open end of the lower case 2. Further, since the engaged piece 19 of the front upper bracket 16 contacts the lower surface of the engaging piece 17 of the front lower bracket 14 on the front side of the housing 1, the upper case 3 and the lower case 2 The contact state becomes more solid.
[0024]
Further, when the second vertical portion 34 of the rear lower bracket 26 is engaged with the guide hole 36, the guide hole 36 is guided to the first horizontal portion 28 using the rear lower bracket 26 as a guide. Easy to install. Further, by providing the inclined portion 30 between the first vertical portion 29 and the first horizontal portion 28, the guide hole 36 is moved to the first vertical portion while the upper case 3 is rotated counterclockwise. The operation of engaging the first horizontal portion 28 from 29 is facilitated.
[0025]
Next, a method for removing the upper case from the lower case will be described.
As shown in FIG. 5B, the screw 44 and the screw portion 40 of the rear upper bracket 27 are released, and the upper case 3 is moved to the left in the figure, whereby the front lower bracket 14 is moved. The engagement between the engagement piece 17 and the engaged piece 19 of the front upper bracket 16 is released.
[0026]
As the upper case 3 is rotated clockwise, the guide hole 36 of the rear upper bracket 27 passes through the inclined portion 30 from the first horizontal portion 28 of the rear lower bracket 26 as shown in FIG. The first vertical portion 29 is engaged. At this time, similarly to the attachment of the upper case 3 described above, the inclined portion 30 is provided to facilitate the clockwise rotation of the upper case 3. Further, when the upper case 3 is rotated and the opening angle of the upper case 3 is A as shown in FIG. 5B, the mounting portion 35 and the locking portion 38 of the rear upper side bracket 27 are connected to the rear lower side. The upper case 3 is brought into contact with the front and back of the first vertical portion 29 of the bracket 26, and is locked to the upper end of the vertical portion 21 of the fixing plate 20.
[0027]
Therefore, since the upper case 3 is held in an opened state by the angle A, maintenance inspection and repair can be performed without removing the upper case 3 from the lower case 2. Here, when the opening angle A of the upper case 3 is small, as shown in FIG. 7A, the second horizontal portion 33 is engaged with the guide hole 36 and the upper end of the engaging portion 38 is connected to the second end. The upper case 3 can be held in a state in which the opening angle of the upper case 3 is set to B by being locked to the vertical portion 34 and the lower end of the mounting portion 35 being locked to the first vertical portion 29. . Thus, since the opening angle of the upper case 3 can be selected, workability in maintenance inspection, repair, etc. can be improved.
[0028]
In order to remove the upper case 3 from the lower case 2 from this state, the second vertical portion 34 is engaged with the guide hole 36 from the second horizontal portion 33, and as shown in FIG. This is done by moving 3 upward.
[0029]
In the present embodiment, the front engaging means 13 is constituted by the front lower side bracket 14 and the front upper side bracket 16. However, the present invention is not limited to this. For example, a screw in the rear engaging means 25 is provided. 44 and the fixed plate 20 may be adopted.
[0030]
【The invention's effect】
As described above, according to the first aspect of the invention, it is possible not only to easily attach and detach the case, but also to prevent a gap from being generated between the two cases.
[0031]
Moreover, according to the invention which concerns on Claim 2, a maintenance check, repair, etc. can be performed, without removing a case.
[0032]
Moreover, according to the invention which concerns on Claim 3, attachment / detachment of a case becomes easy.
[0033]
Moreover, according to the invention which concerns on Claim 4, since the opening angle of a case can be selected, workability | operativity in a maintenance check, repair, etc. can be improved.
[0034]
Moreover, according to the invention which concerns on Claim 5, the contact state of both cases becomes firmer.
[Brief description of the drawings]
FIG. 1 shows a housing according to the present invention, and is a cross-sectional view taken along line II in FIG.
FIG. 2 is a cross-sectional view taken along the line II-II in FIG.
FIG. 3 is an exploded perspective view showing a main part of a housing according to the present invention.
4 is a cross-sectional view taken along the line II in FIG. 2 for explaining the operation of opening and closing the housing according to the present invention.
FIG. 5 is a cross-sectional view taken along the line II in FIG. 2 showing only the main part for explaining the operation of opening and closing the housing. FIG. 5A shows a state in which the opening of the lower case is closed by the upper case FIG. 2B shows a state where the upper case is moved in the horizontal direction with respect to the lower case.
6 is a cross-sectional view taken along the line VI-VI in FIG. 2 which shows only the main part in order to explain the operation of opening and closing the casing according to the present invention. FIG. 6 (a) shows a state in which the upper case is slightly opened. FIG. 2B shows a state where the upper case is opened at an angle A.
7 is a cross-sectional view taken along the line VI-VI in FIG. 2 for explaining the operation of opening and closing the housing according to the present invention. FIG. 7 (a) shows a state in which the upper case is opened at an angle B; b) shows a state where the upper case is removed.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Housing | casing, 2 ... Lower case, 3 ... Upper case, 13 ... Front part engagement means, 14 ... Front part lower side bracket, 16 ... Front part upper side bracket, 17 ... Engagement piece, 18 ... Notch, DESCRIPTION OF SYMBOLS 19 ... Engagement piece, 20 ... Fixing plate, 22 ... Insertion hole, 25 ... Rear engagement means, 26 ... Rear lower side bracket, 27 ... Rear upper side bracket, 28 ... First horizontal part, 29 ... First Vertical part, 30 ... inclined part, 33 ... second horizontal part, 34 ... second vertical part, 35 ... mounting part, 36 ... guide hole, 37 ... bent part, 38 ... locking part, 39 ... Fixed part, 40 ... screw part, 44 ... screw.

Claims (5)

In the opening and closing structure of the housing that the upper case that opens and closes the opening of the lower case is removable from the lower case,
A lower bracket formed by a first horizontal portion provided at one end of the lower case and a first vertical portion formed by bending the tip side of the first horizontal portion at a right angle;
An upper side bracket provided on one end side of the upper case,
The upper bracket is placed on the first horizontal portion of the lower bracket and the first vertical portion of the lower bracket which is bent at a right angle at one end of the placement portion. Consists of a bent part provided with a guide hole formed in the shape of a slit to be engaged, and a locking part formed at the other end of the bent part at a right angle in the opposite direction to the mounting part. And
The opening of the lower case is closed by the upper case by bringing the mounting portion and the locking portion of the upper bracket into contact with the front and back of the first horizontal portion of the lower bracket. Opening and closing structure of the housing. In the opening-closing structure of the housing of Claim 1,
An opening of the lower case is opened by bringing the mounting portion and the locking portion of the upper side bracket into contact with the front and back of the first vertical portion of the lower side bracket. Opening and closing structure. In the opening-closing structure of the housing of Claim 1 or 2,
An opening / closing structure for a housing, wherein an inclined portion is provided between a first horizontal portion and a first vertical portion of the lower bracket. In the opening-closing structure of the housing | casing of Claim 1 thru | or 3,
A second horizontal portion bent at a right angle to the first horizontal portion side is formed at the upper end of the first vertical portion of the lower side bracket, and a right angle upward is formed at the tip of the second horizontal portion. A structure for opening and closing the housing, characterized in that a second vertical portion formed by bending is provided. In the opening-closing structure of the housing of Claims 1 thru | or 4,
Engaging means for engaging the lower end of each of the lower case and the upper case by closing the opening of the lower case with the upper case and releasing the engagement by moving the upper case in the horizontal direction. A structure for opening and closing the housing, characterized by being provided.

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