JP2003023265A - Electronic equipment case structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic equipment case structure where a display means can be fixed to an equipment body without using a connector. SOLUTION: An engaging hole 1d is provided to the rear of the main body case 1b of an equipment main body, a display means 2 is composed of a front case 2a and a back case 2b, and an engaging pawl 2f which is engaged with the engaging hole 1d in a detachable manner and fastens the front case 2a and the back case 2b together is provided to the front of the display means 2 so as to protrude. The engaging pawl 2f protruding from the front of the display means 2 is engaged with the engaging hole 1d of the case body 1b, by which the display means 2 can be fixed to the equipment body 1. The engaging pawl 2f serves also to fasten the cases 2a and 2b together, and an additional part such as a connector to join the display means 2 to the equipment body 1 can be dispensed with, so that this electronic equipment case structure can be reduced in the number of parts and cost.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a housing structure of electronic equipment for information communication.

[0002]

2. Description of the Related Art Conventionally, as a housing structure of this kind of electronic equipment, for example, one shown in FIG. 7 is known.

The housing structure of the electronic device comprises a device main body b provided with a plurality of operation keys a and a panel-shaped display means c which is detachable from the device main body b. A display unit (not shown) for displaying various information
Is provided.

Further, a connecting tool d for mounting the display means c is provided on the device body b side, and a fixing tool j is provided at, for example, two places on the bottom.
It is fixed by.

The connecting tool d is composed of a body mounting portion e fixed to the bottom of the device body b and a panel mounting portion f raised substantially at a right angle to the body mounting portion e, and is integrally formed by bending a metal plate. Has been formed.

Mounting holes g are formed in the panel mounting portion f, and the mounting screws h inserted into these mounting holes g are fitted with the slits i formed on both lower sides of the display means c. The display means c is attached to the rear part of the device body b by tightening h.

[0007]

However, in the case structure of the conventional electronic equipment described above, the connecting means d fixed to the bottom of the equipment body b by the fixing means j is attached to the connecting means d by the mounting screw h.
Due to the structure for mounting, there is a problem that it takes time to mount the display means c on the device body b, and since the connecting tool d is required, the number of parts increases and the cost increases.

A connecting tool d formed by bending a metal plate.
Has a dimensional variation due to manufacturing error. Therefore, when the display means c is attached to the connector d fixed to the device body b, a dimensional variation causes a gap between the device body b and the display means c. However, there are problems that the fixing of the display means c becomes unstable, and the appearance is not good.

The present invention has been made to solve the above conventional problems, and provides a housing structure of an electronic device in which a display means can be attached to a device body without using a connecting tool. The purpose is to facilitate the mounting of the display means and reduce the number of parts.

[0010]

In order to achieve the above object, a housing structure of an electronic device according to the present invention is a housing structure of an electronic device in which a display means is detachably attached to a rear portion of the device body. A locking hole is formed on the rear surface of the main body case of the main body, and the display means is composed of a front case and a rear case. The front and rear cases are locked to each other on the front surface of the display means, and the locking hole of the main body case is formed. It has a locking claw that can be engaged and disengaged.

With the above structure, the display means can be attached to the main body of the device by locking the locking claws protruding from the front surface of the display means in the locking holes of the main body case. The installation work can be done easily and in a short time, and the locking claws also function as locking means for locking the front and rear cases to each other, and a separate component such as a connector is required to mount the display means on the device body. Therefore, the number of parts and the cost can be reduced.

In order to achieve the above-mentioned object, the housing structure of an electronic device of the present invention has a front case formed with a slit having a narrow portion at the upper portion, and a narrow portion of the slit at the base of the locking claw. A concave groove that fits into the groove and a concave portion that engages with the lower edge of the locking hole are formed.

With the above construction, since the width of the narrow portion is made slightly larger than the plate thickness of the locking claws in advance, the front and rear cases are assembled with high precision, so that backlash and the like occur between the front and rear cases. In addition, the width of the recess is set in advance so that a gap that is slightly larger than the plate thickness of the rear surface of the body case is formed between the front edge of the recess and the front surface of the display means. When the is attached, since there is no gap between the rear surface of the device body and the front surface of the display means, it is possible to solve the problems such as unstable attachment of the display means and poor appearance. .

In order to achieve the above-mentioned object, the housing structure of the electronic device of the present invention is one in which the lower part of the front and rear case is fixed to the main body case by mounting screws.

With the above construction, the display means can be attached to the main body of the apparatus by the locking claws and the mounting screws, so that the display means can be attached more reliably and an external force acts on the display means during the use of the electronic device. However, the locking claws are less likely to be deformed or damaged.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail with reference to the drawings shown in FIGS.

FIG. 1 is a perspective view of an electronic device, FIG. 2 is a perspective view of a state in which a display means is removed from a device body, FIG. 3 is a perspective view of a rear surface side of the device body, and FIG. 4 is a perspective view of the display means. 5 is an exploded perspective view seen from the front side of the display means, and FIG. 6 is an exploded perspective view seen from the rear side of the display means.

The electronic device for information communication is a device body 1
And the display means 2.

The device body 1 is, for example, a console of an electronic device, and has a front panel 1a provided on the upper surface thereof and a flat body case 1b which is inclined so as to be gradually lowered toward the front side. A printed circuit board (not shown) on which electronic components and the like are mounted is housed therein.

On the front panel 1a provided on the upper surface of the main body case 1b, a large number of key groups 3 composed of a numeric keypad 3a and various function keys 3b are arranged vertically and horizontally, and on the upper side of the front panel 1a. The concave step portion 1c is formed, and the display panel 4 is retractably stored in the concave step portion 1c.

As shown in FIG. 3, on the rear surface of the main body case 1b, there are vertically elongated slit-like locking holes 1d in the upper portions of both ends, and a large number of ventilation holes 1 are provided between the locking holes 1d.
e is formed, and a screw hole 1f is formed below each locking hole 1d.

The locking hole 1d and the screw hole 1f are provided in the display means 2
For detachable mounting, each locking hole 1d,
Locking hole 2f projecting from the rear case 2b of the display means 2
Can be engaged and disengaged.

The display means 2, as shown in FIGS. 5 and 6,
It is composed of a front case 2a and a rear case 2b,
The upper portion of the front case 2a is an inclined surface 2c which is inclined rearward, and a display 5 such as a liquid crystal display for displaying information is provided on the inclined surface 2c.

The rear case 2b includes a rear surface plate 2d and a rear surface plate 2d.
The side plate 2e is formed on both sides of the side plate 2d, and the upper edge of the side plate 2e is inclined along the inclined surface 2c of the front case 2a. Are formed.

As shown in the enlarged view of FIG. 5, the locking claws are tongue-shaped and project from the front edges of the side plates 2e, and have slits formed in the front case 2a at the upper part of the base. 2 g
A concave groove 2j that fits into the narrow portion 2h is formed, and a concave portion 2k that engages with the locking hole 1d of the main body case 1b is formed in the lower portion.

The recessed groove 2j formed in the locking claw 2f is for locking the front case 2a and the rear case 2b together to integrate them, and the groove width W1 is slightly smaller than the plate thickness of the front case 2a. The width W2 of the narrow portion 2h of the slit 2g formed in the front case 2a is slightly larger than the plate thickness of the locking claw 2f, and the upper edge portion of the rear case 2b is formed. By fitting the concave groove 2j of the locking claw 2f into the narrow portion 2h of the slit 2g while fitting from the rear side of the front case 2a to the inside of the inclined surface 2c, the front and rear cases 2a, 2b.
Can be assembled without play.

On the other hand, the slit 2 is formed from the rear side of the front case 2a.
When the front and rear cases 2a and 2b are assembled by inserting the locking claw 2f into the g, the locking claw 2f is moved from the slit 2g to the front case 2a.
As shown in FIG. 4, the locking claw 2f
The width W3 is set so that a gap slightly larger than the thickness of the rear face plate 1g of the main body case 1b is formed between the front edge of the concave portion 2k formed on the lower side and the front surface of the front case 2a. By fitting the locking claw 2f into the locking hole 1d on the rear surface of the main body case 1b and pushing down the display means 2, the lower end edge of the locking hole 1d can be engaged with this gap without rattling.

Further, an inverted U-shaped notch 2m is formed in a lower portion of the front case 2a at a position corresponding to a screw hole 1f formed on the rear surface of the main body case 1b, and the notch 2m is inserted into the notch 2m. The display means 2 can be fixed to the main body case 1b by screwing the mounting screw 6 into the screw hole 1f of the main body case 1b.

Reference numeral 7 in FIGS. 5 and 6 denotes a printed circuit board on which electronic parts and the like are mounted, and is mounted inside the front case 2a. Further, a ventilation hole 2n elongated in the left-right direction is formed in the front surface of the front case 2a, and a large number of ventilation holes 2p are formed in the rear surface plate 2d of the rear case 2b.

Next, the operation of the housing structure of the electronic device configured as described above will be described.

The display means 2 attached to the device body 1 is assembled with the front and rear cases 2a and 2b in a state where the printed circuit board 7 is attached inside the front case 2a and the indicator 5 is attached inside the inclined surface 2c in advance. .

When assembling the front and rear cases 2a and 2b, the upper edge of the rear case 2b is placed on the inclined surface 2 of the front case 2a.
After being inserted into the inside of c and inserting the locking claw 2f into the slit 2g of the front case 2a, the rear case 2b is pushed up with respect to the front case 2a, and the concave groove 2j of the locking claw 2f is narrowed in the slit 2g. The front and rear cases 2a and 2b are fitted to the portion 2h.
After assembling without any looseness, a fastener 9 such as a screw inserted from the bottom side of the front case 2a is screwed into the bottom surface of the rear case 2b to integrate the front and rear cases 2a and 2b.

Next, when the display means 2 is attached to the equipment body 1, the display means 2 is provided behind the equipment body 1 as shown in FIG.
When the locking claw 2f projecting from the front surface of the front case 2a is inserted into the locking hole 1d of the device body 1 with the
The display means 2 is pushed down with respect to the device body 1, and the locking claw 2f
The lower concave portion 2k is engaged with the lower end edge of the locking hole 1d.

The width W3 of the concave portion 2k is set in advance so that the gap between the front surface of the front case 2a and the front edge of the concave groove 2k is slightly larger than the thickness of the rear surface plate 1g of the main body case 1b. The front surface of the front case 2a is in close contact with the rear surface of the main body case 1b, so that the display means 2 can be attached to the device main body 1 without play.

After the display means 2 is mounted as described above, the mounting screw 6 inserted through the notch 2m formed in the lower portion of the front case 2a is screwed into the screw hole 1f of the main body case 1b, and the device main body 1 The display means 2 is fixed to the device main body 1. The display means 2 is fixed to the device body 1 by the locking claws 2f and the mounting screws 6, so that the electronic device can be
There is no concern that an unreasonable force is applied to the connecting portion of the display means 2, and the vent hole 2n opened on the front surface of the front case 2a is
Since it is communicated with the ventilation hole 1e opened in the rear surface of the body case 1b, the ventilation in the device body 1 and the display means 2 is not obstructed.

[0036]

As described in detail above, according to the present invention, a locking hole is formed in the rear surface of the main body case of the device main body, and the display means is composed of the front case and the rear case, and the front surface of the display means is Since the front and rear cases are locked to each other and the locking claws that can be freely engaged and disengaged are provided in the locking holes of the main body case,
By locking the locking claws protruding from the front surface of the display means to the locking holes of the main body case, the display means can be attached to the main body of the device, so that the display means can be easily attached in a short time. In addition, the locking claws also function as locking means for locking the front and rear cases to each other, and since a separate part such as a connecting tool is not required to attach the display means to the device body, the number of parts can be reduced. It becomes possible to reduce the cost and the cost.

Further, the front case is formed with a slit having a narrow portion at the upper portion, and a recessed groove which is fitted into the narrow portion of the slit is formed at the base of the locking claw, and is engaged with the lower edge of the locking hole. Since the concave portion is formed, the width of the narrow portion is made slightly larger than the plate thickness of the locking claw in advance, so that the front and rear cases can be assembled with high accuracy, and thus rattling occurs between the front and rear cases. In addition, the width of the recess is set in advance so that a gap slightly larger than the plate thickness of the rear surface of the body case is formed between the front edge of the recess and the front surface of the display means. When the means is attached, there is no gap between the rear surface of the main body of the device and the front surface of the display means, so it is possible to solve the problems such as the unstable attachment of the display means and the poor appearance. it can.

Further, since the lower part of the front and rear case is fixed to the main body case by the mounting screw, the display means can be mounted on the device main body by the locking claw and the mounting screw, so that the display means can be mounted more reliably. At the same time, even if an external force acts on the display means during use of the electronic device, there is little concern that the locking claw will be deformed or damaged.

[Brief description of drawings]

FIG. 1 is a perspective view of an electronic device adopting a housing structure according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a housing structure of an electronic device according to an embodiment of the present invention.

FIG. 3 is a perspective view of a rear surface side of an electronic device adopting the housing structure according to the embodiment of the present invention.

FIG. 4 is a front perspective view of a display unit that employs a housing structure of an electronic device according to an embodiment of the present invention.

FIG. 5A is an exploded perspective view of the front side of the display unit that employs the housing structure of the electronic device according to the embodiment of the present invention. (B) is an enlarged view within the circle A of FIG. 5 (A).
FIG. 5C is an enlarged view within the circle B of FIG.

FIG. 6 is a perspective view of the rear surface side of the display means adopting the housing structure of the electronic device according to the embodiment of the invention.

FIG. 7 is an explanatory diagram showing a housing structure of a conventional electronic device.

[Explanation of symbols]

1 device body 1b body case 1d locking hole 2 display means 2a front case 2b rear case 2f locking claw 2g slit 2h narrow part 2j groove 2k recess 6 mounting screws

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Masakichi Kageyama             Fukushima Prefecture, Koriyama City, Senba 94, Japan             Within Tate Telecom Technology F-term (reference) 4E360 AB08 AB12 AB18 AB20 ED02                       ED03 ED17 ED27 GA06 GA52                       GA53 GB26 GB46

Claims (3)

[Claims] 1. A housing structure of an electronic device, wherein display means is detachably attached to a rear portion of a device body, wherein a locking hole is formed on a rear surface of a body case of the device body, and the display means is provided at a front portion. It comprises a case and a rear case, and the front and rear cases are locked to each other on the front surface of the display means,
In addition, a housing structure of an electronic device, wherein a locking claw that can be engaged and disengaged is provided in a projecting manner in the locking hole of the main body case. 2. The front case is formed with a slit having a narrow width portion at an upper portion thereof, and a recessed groove fitted into the narrow width portion of the slit is formed at a base portion of the locking claw, and the locking hole. The housing structure for an electronic device according to claim 1, wherein a recess that engages with a lower edge is formed. 3. The lower part of the front and rear case is fixed to the main body case with a mounting screw.
The housing structure of the electronic device according to 1.