JP4320894B2 - Mounting mechanism of rear panel in casing - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rear panel mounting mechanism for a casing, and more particularly to a rear panel mounting mechanism in a casing that can be easily and surely temporarily fixed to a rear end opening portion of a chassis body.
[0002]
[Prior art]
Conventionally, a casing for incorporating various electrical parts has a front cover at the front part, a chassis main body in which left and right side plates are erected on both sides of the bottom plate, and the chassis main body has an open rear part, It is known that a rear panel is attached to the open part and a top cover is attached to the upper part of the chassis body. Thus, the rear panel attached to the open portion of the chassis main body is temporarily fixed to the chassis main body when initially attached to the left and right side plates.
[0003]
FIG. 6 shows an example of a conventional attachment mechanism for temporarily fixing a rear panel to the left and right side plates. 6 (a), the chassis main body 1 of the casing has a pair of side plates (the other not shown) 1b standing on both sides of the bottom plate 1a, and is cut and raised on the rear outer surface of the side plate 1b. Thus, the restricting portion 1c is formed. The rear panel 2 has a pair of arm plates (the other is not shown) 2a formed by bending the left and right end portions forward, and a locking hole 2b is formed in the arm plate 2a.
[0004]
The rear panel 2 is temporarily fixed to the rear portion of the chassis body 1 by fitting both the arm plates 2a to the outer surfaces of the both side plates 1b of the chassis body 1 and fitting the locking holes 2b into the restricting portions 1c of the side plates 1b. Is done. FIG. 6B shows a pair of locking holes 2c, 2c formed in the arm plate 2a of the rear panel 2 and a pair of pins 1d, 1d protruding from the side plate 1b of the chassis main body 1, respectively. As a result, the rear panel 2 is temporarily fixed to the rear portion of the chassis body 1.
[0005]
[Problems to be solved by the invention]
In the conventional example of FIG. 6A, when a force in the insertion direction (front-rear direction) indicated by an arrow acts on the rear panel 2, the restriction portion 1c formed by the cut and raised and the locking hole 2b Although the locking state is strong and the temporary fixing of the rear panel 2 cannot be removed, there is a problem that the temporary fixing of the rear panel 2 is easily released when a force in the lateral direction or a force other than the insertion direction is applied.
[0006]
Further, as shown in FIG. 6B, in the case of temporary fixing by the round pins 1d and 1d and the round locking holes 2c and 2c, it is sufficient for the vertical force acting on the rear panel 2. The adaptive force works and the temporary fastening of the rear panel 2 is difficult to come off, but when a force from a direction other than the vertical direction is applied, there is a problem that the temporary fastening of the rear panel 2 is easy to come off. Thus, until the electrical component is assembled in the casing having the chassis main body 1 and the rear panel 2, the rear panel 2 may be temporarily carried on the chassis main body 1. At this time, particularly when the chassis body 1 is relatively heavy, there is a defect that when the operator holds the rear panel 2 and carries the chassis body 1, the temporary fastening of the rear panel 2 is released.
[0007]
Therefore, there is a technical problem to be solved in order to easily and surely perform the temporary fixing of the rear panel to the chassis main body, and the present invention aims to solve the problem. Is.
[0008]
[Means for Solving the Problems]
The present invention has been proposed to achieve the above object, and the invention according to claim 1 is a chassis main body of a casing, the chassis main body including a bottom plate, left and right side plates provided on both left and right sides of the bottom plate, and A casing comprising a front cover and a top cover, the rear part of which is open, and a rear panel attached to and detached from the open part. The casing is provided on the rear panel, and is provided on the outer surface of the left and right side plates of the chassis body. A pair of arm plates, the arm plates having an insertion port formed by opening the front surface at a substantially intermediate portion, and a long hole continuously opened from the insertion port along the upper side; and A first restricting portion that abuts the upper edge of the arm plate of the rear panel and restricts the upward movement of the rear panel on the rear outer surfaces of the left and right side plates of the chassis main body, and is inserted into the elongated hole of the arm plate. And forming a second regulating portion for regulating the movement in the longitudinal direction of the panel, the first restricting portion is formed by cutting and raising the left and right side plates of the chassis body, and said second restricting portion, the chassis A casing configured by bending a part of the rear end portion of the left and right side plates of the main body outwardly, and further, a lower edge of the arm plate is in contact with a protrusion protruding to the left and right sides of the bottom plate The rear panel mounting mechanism and the invention according to claim 2 are a chassis main body of the casing, and the chassis main body includes a bottom plate, left and right side plates provided on the left and right sides of the bottom plate, a front cover, and a top cover. In a casing formed by attaching / detaching a rear panel to / from the open part, provided on the rear panel, and provided on the outer surface of the left and right side plates of the chassis body. A pair of arm plates, the arm plates having an insertion port formed by opening the front surface at a substantially intermediate portion, and a long hole continuously opened from the insertion port along the upper side; and The left and right side plate rear outer surfaces of the chassis main body are inserted into the long holes of the arm plate, the first restricting portion that contacts the upper edge of the arm plate of the rear panel and restricts the upward movement of the rear panel, and and forming a second regulating portion for regulating the movement in the longitudinal direction of the rear panel, the first restricting portion and the second restricting portion, by the respective provided with cut-and-raised above the left and right side plates of the chassis body Ri構 Further, the lower edge of the arm plate provides a mounting mechanism for a rear panel in a casing configured to abut on a protrusion protruding to the left and right sides of the bottom plate .
[0009]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described below with reference to FIGS. 1 and 2, reference numeral 11 denotes a casing. The casing 11 includes a chassis body 12 and a rear panel 21. Thus, the chassis body 12 includes a bottom plate 16, left and right side plates 17 erected on both the left and right sides of the bottom plate 16, and a front cover 19 and a top cover 20 provided on the front surface. The rear end portions of the left and right side plates 17 are released, and the release portion 21 is detachably closed by the rear panel 21. The left and right side plates 17 are formed with inwardly bent pieces 17a and 17b, respectively, and a substrate 22 indicated by phantom lines is fixed by screws (not shown), and various electrical components 23 are provided on the substrate 22. , 23... Are arranged.
[0010]
The left and right side plates 17 are formed symmetrically, but FIG. 3 shows the left side plate 17. In the drawing, a first restricting portion 17c is formed by cutting and raising on the rear outer surface of the side plate 17, and further, a bent piece facing outward is formed below the first restricting portion 17c. A second restricting portion 17d is provided. Accordingly, the first restricting portion 17c and the second restricting portion 17d are also provided on the right side plate 17.
[0011]
The rear panel 21 has a pair of left and right arm plates 21a, 21a formed by bending both end portions forward. In FIG. 3, the left part of the rear panel 21 is shown. Thus, the arm plate 21a is formed with an insertion port 21b whose front surface is opened and a longitudinally long hole 21d whose lower part is connected to the insertion port 21b. The upper end surface forms a locking surface 21e and locks to the first restricting portion 17c, and the upward movement of the rear panel 21 is restricted. Both the arm plates 21a, 21a of the rear panel 21 are in contact with the rear outer surfaces of the left and right side plates 17 of the chassis main body 12 so as to be freely fitted.
[0012]
Also, long holes 21d and 21d formed in the left and right arm plates 21a and 21a of the rear panel 21 and second restricting portions 17d and 17d formed by bent pieces of the left and right side plates 17 are formed in the insertion openings 21b and 21b. Mounting mechanisms 15 and 15 are configured to be inserted and regulated to temporarily fix the rear panel 21 swinging in the front-rear direction.
[0013]
As shown in FIG. 2, the rear panel 21 is provided with a screw hole 23 for screwing the top cover 20 and an attachment hole 25 for attaching a connection part. The left and right side plates 17 are not elastic because the front panel 26 and the front cover 19 are fixed to the front side of the left and right side plates 17, but the rear side of the left and right side plates 17 is open. Therefore, the upper part of each side plate 17 is elastic enough to be slightly inclined inward.
[0014]
When the rear panel 21 is temporarily fixed to the chassis body 12, the rear upper portions of the left and right side plates 17 are tilted inward, and the amount of tilt is the first of the left and right side plates 17 shown in FIG. 3. The restricting portions 17c and 17c may sunk on the inner surface side of the arm plates 21a and 21a of the rear panel 21. If the second restricting portions 17d and 17d are inserted into the insertion ports 21b and 21b of the arm plates 21a and 21a of the rear panel 21 shown in FIG. As shown in (a), the arm plates 21 a and 21 a of the rear panel 21 are fitted to the outer side surfaces of the left and right side plates 17 of the chassis body 12. Thus, when the rear panel 21 in the state shown in FIG. 4A is lowered in the direction indicated by the arrow, as shown in FIG. 4B, the chassis main body is placed in the long holes 21d and 21d of the arm plates 21a and 21a. The second restricting portions 17d and 17d of the left and right side plates 17 and 17 constituting 12 are inserted, and the upper surfaces 21e and 21e of the arm plates 21a and 21a are in contact with the lower edges of the first restricting portions 17c and 17c. Is done. At this time, the lower edges of the arm plates 21a and 21a are in contact with the protrusions 16a and 16a of the bottom plate 16, and the upper bent pieces 21f of the rear panel 21 are in contact with the upper edges 17e and 17e of the left and right side plates 17.
[0015]
As described above, the rear panel 21 attached to the rear portion of the chassis body 12 is restricted in movement by the first restricting portions 17c and 17c in the upward direction, and by the second restricting portions 17d and 17d in the insertion direction. The movement is restricted, and thus the rear panel 21 is securely temporarily fixed to the chassis body 12.
[0016]
The chassis main body 12 to which the rear panel 21 is temporarily fixed may be carried in the middle of assembling the electrical component 23 described above. In this case, the rear panel 21 is given a strong force in the insertion direction due to the weight of the chassis main body 12 itself. However, since the second restricting portions 17d and 17d of the left and right side plates 17 constituting the chassis main body 12 engage with the long holes 21d and 21d of the rear panel 21 and a strong restricting force is applied, the rear panel 21 is temporarily fixed. It will never come off. Accordingly, it is possible to prevent the chassis body 12 from being dropped and the electrical component 23 from being damaged due to the temporary fastening of the rear panel 21 while the chassis body 12 is being carried.
[0017]
In the above embodiment, the case where the second restricting portion for restricting the long holes 21d and 21d of the rear panel 21 is formed by the bent pieces 17d and 17d formed on the left and right side plates 17 has been described. Instead of the pieces 17d, 17d, it is possible to use a long cut in the vertical direction, and FIG. 5 shows an example thereof.
[0018]
FIG. 5 shows the left side plate 17 of the left and right side plates 17 formed symmetrically of the chassis body 12. In FIG. 5, a first restricting portion 17 c similar to that of the above embodiment and a second restricting portion 17 f formed by cutting and raising the lower portion are provided on the rear outer surface of the side plate 17. The second restricting portion 17f is formed such that the longitudinal dimension L is long.
[0019]
First restricting portions 17c and 17c and second restricting portions 17f and 17f formed on the left and right side plates 17, upper surfaces 21e and 21e of the arm plates 21a and 21a of the rear panel 21, and long holes formed in the arm plates 21a. 21d and 21d can also securely fix the rear panel 21 to the chassis main body 12 in the same manner as in the above embodiment, and the first restricting portions 17c and 17c and the second restricting portions 17f and 17f Since both are formed by cutting up, the machining operation is simplified and the cost of the casing 11 can be reduced.
[0020]
It should be noted that the present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified ones.
[0021]
【The invention's effect】
As described in detail in the above embodiment, the present invention controls the upward movement of the rear panel by abutting the first restricting portion of the chassis main body on the upper surface of the arm plate of the rear panel, and the chassis has a long hole in the rear panel. Since the rear panel is temporarily fixed to the chassis body by engaging the second restricting portion of the main body and restricting the movement of the rear panel in the insertion direction, forces in various directions act on the temporarily fixed rear panel. However, the rear panel does not come off, and the rear panel can be securely fixed to the chassis body. Thereby, even when the chassis main body with the rear panel temporarily fixed is carried when, for example, an electrical component is assembled, a problem that the rear panel is temporarily fixed can be prevented.
[0022]
Further, the first restricting portion is formed by a cut and raised provided on the left and right side plates of the chassis main body, and is formed by a bent piece provided on the left and right side plate of the chassis main body as the second restricting portion. Since the cut and bent pieces are formed integrally with the left and right side plates, the cost of the casing can be reduced. Further, since the lower edge of the arm plate is configured to abut on the protrusions protruding to the left and right sides of the bottom plate, a stronger mechanism for temporarily fixing the rear panel can be realized.
[0023]
Furthermore, since both the first restriction portion and the second restriction portion of the left and right side plates are formed by cutting and raising provided on both side plates of the chassis main body, the first restriction portion and the second restriction portion can be easily processed. Thus, the cost of the casing can be further reduced. In addition, since the lower edge of the arm plate is configured to come into contact with the protrusions protruding to the left and right sides of the bottom plate, a more rigid mechanism for temporarily fixing the rear panel can be realized.
[Brief description of the drawings]
FIG. 1 is a perspective view of a casing according to an embodiment of the present invention.
FIG. 2 is a perspective view of a chassis main body and a rear panel temporarily fixed thereto according to an embodiment of the present invention.
FIG. 3 is a perspective view of a rear panel mounting mechanism according to an embodiment of the present invention.
4A is a side view of a rear panel immediately before temporary fixing, and FIG. 4B is a side view of the rear panel after temporary fixing is completed. It is.
FIG. 5 is a perspective view of a side plate of a chassis main body provided with a cut-and-raised portion as a restricting portion according to another embodiment of the present invention.
6A and 6B show an example of a conventional rear panel mounting mechanism, wherein FIG. 6A is a perspective view of a side panel of a chassis main body having a rear panel having a locking hole and a cut-up, and FIG. 6B is a pair of round shapes. It is a perspective view of the side plate of the chassis main body which has a rear panel which has a locking hole, and a pair of pins.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 Casing 12 Chassis main body 15 Attachment mechanism 16 Bottom plate 17 of chassis main body Left-right side plate 17c of the chassis main body 1st control part 17d formed by cutting up 2nd control part 17f formed by bending piece 2nd formed by cutting up Restriction part 21 Rear panel 21a Arm plate 21b Insertion slot

Claims (2)

A chassis main body of the casing, the chassis main body comprising a bottom plate, left and right side plates provided on the left and right sides of the bottom plate, a front cover and a top cover, the rear portion of which is open, and a rear panel is attached to and detached from the open portion. In the casing
A pair of arm plates provided on the rear panel and on the outer side surfaces of the left and right side plates of the chassis main body, the arm plates having an insertion port formed by opening a front surface at a substantially intermediate portion, and the insertion port A long hole that is continuously opened from above and on the outer side of the rear side of the left and right side plates of the chassis main body, abutting on the upper edge of the arm plate of the rear panel to move the rear panel upward Forming a first restricting portion that restricts and a second restricting portion that is inserted into the elongated hole of the arm plate and restricts movement of the rear panel in the front-rear direction ;
The first restricting portion is formed by cutting and raising the left and right side plates of the chassis main body, and the second restricting portion is formed by bending a part of the rear end portion of the left and right side plates of the chassis main body outward. And
Further, the rear panel mounting mechanism in the casing is characterized in that the lower edge of the arm plate is configured to come into contact with a protrusion protruding leftward and rightward of the bottom plate . A chassis main body of the casing, the chassis main body comprising a bottom plate, left and right side plates provided on the left and right sides of the bottom plate, a front cover and a top cover, the rear portion of which is open, and a rear panel is attached to and detached from the open portion. In the casing
A pair of arm plates provided on the rear panel and on the outer side surfaces of the left and right side plates of the chassis main body, the arm plates having an insertion port formed by opening a front surface at a substantially intermediate portion, and the insertion port A long hole that is continuously opened from above and on the outer side of the rear side of the left and right side plates of the chassis main body, abutting on the upper edge of the arm plate of the rear panel to move the rear panel upward Forming a first restricting portion that restricts and a second restricting portion that is inserted into the elongated hole of the arm plate and restricts movement of the rear panel in the front-rear direction;
The first restricting portion and the second regulating portion is made Ri構 by respectively provided with cut-and-raised above the left and right side plates of the chassis body,
Further, the rear panel mounting mechanism in the casing is characterized in that the lower edge of the arm plate is configured to come into contact with a protrusion protruding leftward and rightward of the bottom plate .

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