JP2017076747A - Lid body attachment structure for flat cable insertion hole and electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lid body attachment structure for flat cable insertion hole that can easily open and close an insertion hole formed in an enclosure as a hole through which a flat cable can pass, can be repeatedly used for opening and closing, and is adaptive to shape change of the insertion hole at low cost in a short time.SOLUTION: A lid body attachment structure for flat cable insertion hole comprises an insertion hole (2g) formed on an enclosure (2f) and allowing a flat cable (3) to be inserted thereinto, and a lid body (5) formed of a sheet material of resin. The lid body (5) has a base part (5q) in a shape corresponding to the insertion hole (2g), and first and second projection parts (5e), (5qe) projecting from the base part (5q). The first projection part (5e) is elastically deformed to be put in and out of the enclosure (2f) through the insertion hole (2g). While the second projection part (5qe) is along an outer surface (2f1) of the enclosure (2f) and the first projection part (5e) is put inside the enclosure (5f), the base part (5q) is fitted to the insertion hole (2g) in a closing state where the insertion hole (2g) is blocked, and the insertion hole (2g) can be opened in a state where the first projection part (5e) is put out of the enclosure (2f).SELECTED DRAWING: Figure 8

Description

  The present invention relates to a lid mounting structure for a flat cable insertion port and an electronic apparatus, and more particularly, to a lid mounting structure for opening and closing an insertion port formed in a housing so as to pass a flat cable, and an electronic device including the structure. Equipment.

There is known a structure in which an insertion port is formed as a hole through which a flat cable can pass through a housing of an electronic device, and the flat cable is passed through the insertion port through the inside and outside of the housing.
For example, in a car navigation apparatus, a main body and a display that moves (rotates) so as to change the orientation of the screen with respect to the main body are electrically connected by a flat cable.

  Specifically, one end of the flat cable is inserted into the connector of the board through the insertion port formed in the housing of the display unit, and the other end pulled out to the outside from the insertion port is connected to the main body unit side. Connected.

In this structure, it is necessary to prevent foreign matter from entering the housing of the display unit from the insertion port. Further, since the flat cable moves with the movement of the display unit, it is necessary to prevent the movement load from being excessively applied to the connector.
Therefore, a lid that closes the insertion opening is attached to the housing while suppressing unnecessary movement of the flat cable.

  Conventionally, this lid is three-dimensionally formed by resin injection molding or metal thin plate press molding, and is detachably attached to the housing by, for example, screws. Or it forms in flat form from the sheet | seat material of a metal or resin, and is affixed with a double-sided tape with respect to a housing | casing. Patent Document 1 describes the former example.

Japanese Patent No. 4860016

  The above-described flat cable of the electronic device may need to be removed from the connector during repair, and the insertion port must be opened for the work.

When opening the insertion opening, the structure in which the three-dimensional lid can be attached and detached with screws can be attached and detached (opening and closing) a plurality of times, but there is a disadvantage that it takes time to remove and attach the screws. .
Further, when the shape of the insertion port is changed due to improvement of electronic equipment or the like, there is a disadvantage that a new die for injection molding or press working is required, which requires cost and time.

On the other hand, the structure in which the lid is attached as a sheet with a double-sided tape has the disadvantage that it cannot be reused substantially because the double-sided tape is peeled off and removed.
However, when the shape of the insertion opening is changed, it can be handled only by creating a simple punching die. Therefore, a new die for injection molding or pressing is not required, the cost increase is suppressed, and the response time can be shortened.

  As described above, since the conventional structure has advantages and disadvantages, the structure in which each advantage is exhibited, that is, the opening and closing of the insertion opening can be easily and repeatedly performed, and the shape of the insertion opening can be changed at a low cost in a short time. A lid mounting structure is desired.

  Therefore, the problem to be solved by the present invention is that it is easy to open and close the insertion port formed in the housing as a hole through which the flat cable can pass, and can be repeatedly opened and closed, and the cost of changing the shape of the insertion port is low. It is an object of the present invention to provide a lid mounting structure for a flat cable insertion port and an electronic device that can be used in a short period of time.

In order to solve the above problems, the present invention has the following configurations 1) and 2).
1) An insertion port formed in the housing and through which the flat cable is inserted;
A lid formed of a resin sheet material;
With
The lid is
A base portion having a shape corresponding to the insertion opening, and first and second projecting portions projecting from the base portion,
The first projecting portion can be elastically deformed to enter / exit the housing through the insertion port,
The insertion is performed in a closed state in which the base portion closes the insertion port in a state where the second overhanging portion is along the outer surface of the housing and the first overhanging portion is placed inside the housing. Attached to the mouth,
It is a cover attachment structure of a flat cable insertion port that allows the insertion port to be opened in a state where the first overhanging portion is extended to the outside of the housing.
2) an insertion opening formed in the housing;
One end side is connected to the connector inside the housing, and the other end side is a flat cable drawn out through the insertion port, and
A lid that is formed of a resin sheet and opens and closes the insertion opening,
The lid is
A base portion having a shape corresponding to the insertion opening, and first and second projecting portions projecting from the base portion,
The first projecting portion can be elastically deformed to enter / exit the housing through the insertion port,
The insertion is performed in a closed state in which the base portion closes the insertion port in a state where the second overhanging portion is along the outer surface of the housing and the first overhanging portion is placed inside the housing. Attached to the mouth,
In the electronic device, the insertion port can be opened in a state where the first overhanging portion is extended to the outside of the housing.

  According to the present invention, it is easy to open and close the insertion port formed in the housing as a hole through which the flat cable can pass, and it can be used repeatedly and can be used in a short period of time to change the shape of the insertion port at low cost. .

FIG. 1 is a side view for explaining a car navigation device 51 which is an example of an electronic apparatus according to an embodiment of the present invention. FIG. 2 is a view for explaining the insertion opening 2g in the lid attachment structure of the flat cable insertion opening provided in the car navigation device 51. FIG. FIG. 3 is a view for explaining the lid 5 in the lid attachment structure of the flat cable insertion opening provided in the car navigation device 51. FIG. 4 is an enlarged view of a portion A in FIG. 3 for explaining the overhang portion 5 e of the lid 5. FIG. 5 is a first diagram illustrating a procedure for attaching the lid 5 to the insertion opening 2g. FIG. 6 is a second diagram illustrating the procedure for attaching the lid 5 to the insertion opening 2g. FIG. 7 is a third diagram illustrating the procedure for attaching the lid 5 to the insertion opening 2g. FIG. 8 is a partial plan view showing a state in which the lid 5 is attached to the insertion opening 2g. FIG. 9 is a cross-sectional view at the position S9-S9 in FIG. FIG. 10 is a perspective view for explaining the opening / closing operation of the lid 5. FIG. 11 is a plan view for explaining a lid 5 </ b> A that is a first modification of the lid 5. 12 is a cross-sectional view at the position S12-S12 in FIG. FIG. 13 is a diagram for explaining a lid body 5B which is a second modification of the lid body 5. FIG. 14 is a cross-sectional view for explaining a third modification in which a folded portion 2f3 is formed at the edge 2g3 of the insertion port 2g. FIG. 15 is a plan view for explaining a lid body 7 which is a modified example 4 of the lid body 5. FIG. 16 is a perspective view showing a state immediately before the lid body 7 is attached to the insertion opening 2g. FIG. 17 is a perspective view showing a state in which the lid body 7 is attached to the insertion opening 2g. FIG. 18 is a cross-sectional view for explaining the position of the bent portion 5 a 2 formed in the lid 5.

The flat cable in the following description includes at least a cable material in which a plurality of coated wires of single wires or stranded wires are arranged in a planar shape, and the coating of adjacent coated wires is integrated by fusion or the like, and a so-called flexible printed wiring board (FPC). : Flexible printed circuits).
In other words, the flat cable in the following description means a belt-like wiring tool that has flexibility and can electrically connect a plurality of wirings between two parts (connectors).

An electronic device according to an embodiment of the present invention will be described using a car navigation device 51 (hereinafter also referred to as a navigation device 51) as an example.
First, the main body 1 and the display unit 2 of the navigation device 51 will be described with reference to FIGS. For convenience of explanation, each direction before and after up and down is defined as the direction shown in FIG. With this rule, the front and back direction of the paper is the width direction.

The navigation device 51 includes a main body unit 1 and a display unit 2 including an image display unit 2a and an operation unit 2b.
In the display unit 2, the link bar 2 c enters and exits the main body unit 1 in the front-rear direction by driving a drive source (not shown) (see arrow DRa).

  As a result, the display unit 2 that rotatably supports the tip of the link bar 2c has a basic posture in which the display screen shown in FIG. 1A is a vertical plane and the display screen shown in FIG. 1B. The posture changes with rotation between an inclined posture facing diagonally upward and forward.

  Inside the main body 1, a circuit board 1 b on which a connector 1 a is mounted is housed. Inside the display unit 2, a circuit board 2e on which a connector 2d is mounted is housed. The connector 1a and the connector 2d are connected by a flat cable 3. The flat cable 3 has a substantially U-shaped convex downward between the connector 1a and the connector 2d.

FIG. 2A is a partial rear view showing the vicinity of the connection portion between the flat cable 3 and the connector 2d in the display unit 2. FIG. That is, FIG. 2A corresponds to the arrow Y1 diagram in FIG. Further, the horizontal direction in FIG. 2A is referred to as the width direction.
FIG. 2B is a cross-sectional view at the position S2-S2 in FIG.
2 (a) and 2 (b) are shown in a state before a lid 5 to be described later is attached.

  The display unit 2 includes a box-shaped housing 2f. The housing 2f is made of metal or resin.

The back surface 2f1 of the housing 2f is a hole that allows the flat cable 3 to be inserted into and removed from the connector 2d at a position corresponding to the connector 2d on the circuit board 2e housed in the housing 2f. An insertion opening 2g is formed.
The insertion opening 2g has a rectangular base opening 2g1 having a length La in the width direction and a length Da in the up-down direction, and an opening of the base opening 2g1 facing downward, and a length Lb in the width direction (Lb <Lb < La) and an opening / closing opening 2g2 extending in the range of the length Db in the downward direction, and is formed as a downward convex opening.
The width Lb in the width direction of the base opening 2g1 may be equal to the length La. In this case, the insertion port 2g is a rectangular opening having a length obtained by adding the length Lb in the width direction and the length Da and the length Db in the vertical direction.

The base opening 2g1 is formed at a position and a size that enable the work of inserting and removing the flat cable 3 into and from the connector 2d.
The length Lb of the entrance / exit opening 2g2 is longer than the length L3 in the width direction of the flat cable 3, and the length Db is set as small as possible within the range in which the flat cable 3 can pass.

  The position in the width direction where the entrance / exit opening 2g2 is formed is, as shown in FIG. 2 (a), a flat cable drawn out through the entrance / exit opening 2g2 when the flat cable 3 is attached to the connector 2d. 3 is included.

  With this structure, the flat cable 3 can be inserted into and removed from the connector 2d through the insertion port 2g with the insertion port 2g opened (see arrow DRb).

(About the lid 5)
A lid 5 is attached to the insertion opening 2g of the housing 2f as a lid for opening and closing the insertion opening 2g.
Next, the lid 5 will be described with reference to FIGS.
3A is a rear view of the lid 5, FIG. 3B is a side view of the lid 5, and FIG. 3C is a front view of the lid 5. The front surface of the lid 5 is an outer surface when attached to the housing 2f.
For convenience of explanation, the vertical direction and the width direction are defined as directions indicated by arrows.
The vertical direction coincides with the vertical direction defined in FIG. 2 with the lid 5 attached to the housing 2f.

  The lid 5 includes a lid main body 5a formed by punching a resin sheet with a die, a double-sided tape 5b attached to a back surface 5a3 (see FIG. 3) of the lid main body 5a, a protruding member 5c, and a cable presser. Member 5d (hereinafter, simply referred to as a pressing member 5d).

The resin sheet material is, for example, a sheet of PET (polyethylene terephthalate) having a thickness of 0.2 mm. The material and thickness are not limited to this.
The protruding member 5c and the pressing member 5d are made of, for example, a soft urethane foam material. The material is not limited to this.

The lid main body 5a has a substantially rectangular shape composed of a length LAa in the width direction and a length DAa in the vertical direction. The length LAa in the width direction is set slightly shorter than the length La in the width direction of the insertion opening 2g. The length DAa in the vertical direction is set to be longer than the length Da in the vertical direction of the base opening 2g1 in the insertion port 2g.
That is, the lid body 5a has a base 5q having a shape corresponding to the insertion opening 2g, and a tension projecting from the base 5q by the difference between the length DAa and the vertical length Da of the base opening 2g1 at the insertion opening 2g. And an exit portion 5qe.

The pair of edge portions 5aa and 5aa in the width direction of the lid main body portion 5a are formed with overhang portions 5e and 5e that protrude outward in the width direction, respectively.
The vertical position of the overhang 5e is, for example, a position closer to the lower edge 5a1 than the upper edge 5a4.
A pair of overhang | projection parts 5e and 5e are formed in the same position, for example in the up-down direction.
Hereinafter, the overhang portion 5e is also referred to as a first overhang portion, and the overhang portion 5qe is also referred to as a second overhang portion.

  A pair of overhang | projection parts 5e and 5e are symmetrical shapes with the centerline of the width direction of the lid | cover main-body part 5a. Here, the detail of the overhang | projection part 5e is demonstrated with reference to FIG. FIG. 4 is an enlarged view of part A in FIG.

A pair of overhang | projection parts 5e and 5e are the shapes which become narrow as it goes to a front-end | tip, respectively.
Is formed.
That is, the protruding portion 5e of the lid main body portion 5a is parallel to the edge portion 5aa and the inclined edge portion 5e1 that protrudes from the edge portion 5aa to incline outward in the width direction and extends from the tip of the inclined edge portion 5e1. The outer edge 5e2 extending downward and the lower edge 5e3 connected to the edge 5aa from the lower end of the outer edge 5e2.

  The overhanging distance LAb of the outer edge 5e2 from the edge 5aa is set as appropriate from the state of deformation when the lid 5 is attached to the housing 2f (details will be described later).

  The inclined edge 5e1 is inclined so as to project outward as it moves downward from the bent portion 5a2 (details will be described later: see FIG. 3). That is, the angle θa formed by the inclined edge 5e1 and the edge 5aa above the inclined edge 5e1 is 90 ° <θa <180 °. For example, the angle θa = 135 ° ± 30 °.

  The angle θb between the lower edge 5e3 and the lower edge 5aa below the lower edge 5e3 is, for example, in the range of angle θb = 90 ° ± 30 °.

  Returning to FIG. 3, a perforation extending in parallel with the lower edge 5a1 is formed on the upper portion of the lid main body 5a and has a bent portion 5a2 that can be bent more easily than other portions. The bent portion 5a2 allows the base portion 5q to be bent with respect to the overhang portion 5qe.

A protruding member 5c is attached to the back surface 5a3 of the lid body 5a in parallel with the lower edge 5a1 of the lid body 5a. For this attachment, for example, a double-sided tape or an adhesive is used.
The mounting position of the protruding member 5c in the vertical direction is lower than the bent portion 5a2, and does not cover the bent portion 5a2.
The protruding member 5c is a flexible urethane foam material formed in an elongated rectangular parallelepiped shape, and is attached to the back surface 5a3 so that the positions of both end portions in the width direction coincide with the outer edges in the width direction of the lid main body portion 5a.

The pressing member 5d is attached to the back surface 5a3 as the same as the protruding member 5c. For this attachment, for example, a double-sided tape or an adhesive is used.
The pressing member 5d is attached in parallel with the lower edge 5a1 with the lower end aligned with the lower edge 5a1 of the lid body 5a.
The pressing member 5d is a contact member that elastically contacts the flat cable 3 passed through the insertion port 2g into and out of the housing 2f when the lid 5 is attached so as to close the insertion port 2g. Function.

  The vertical distance DAc between the lower end 5d1 of the pressing member 5d and the upper end 5c1 of the protruding member 5c is set to be the same as or slightly smaller than the vertical length Da of the base opening 2g1 at the insertion port 2g. Has been.

  A double-sided tape 5b is affixed along the upper edge 5a4 to the upper part of the back surface 5a3 of the lid body 5a. The double-sided tape 5b is affixed above the bent portion 5a2 so as not to cover the bent portion 5a2.

(Installation work of the lid 5)
Next, a procedure for attaching the lid 5 to the housing 2f will be described with reference mainly to FIGS.
FIG. 5 is a perspective view of the state immediately before the lid 5 is attached to the insertion opening 2g as seen from the lower left side of the front side of the sheet of FIG. 2 (a).

  As shown in FIG. 5, first, the flat cable 3 is attached to the connector 2d through the insertion port 2g in the open state, and the lower side from which the flat cable 3 is pulled out is the holding member 5d side with respect to the insertion port 2g. (See the white arrow DRc).

  As described above, the length LAa in the width direction of the protruding member 5c and the pressing member 5d is set to be substantially the same or slightly smaller than the length La in the width direction of the base opening 2g1 in the insertion port 2g. The vertical distance DAc between the upper end of the protruding member 5c and the lower end of the pressing member 5d is set to be substantially the same as or slightly smaller than the vertical length Da of the base opening 2g1. .

Thereby, the up-down direction and the width direction of the lid 5 are positioned by the protrusion member 5c and the pressing member 5d entering the insertion opening 2g.
Next, the double-sided tape 5b is pressed against the back surface 2f1 of the housing 2f and attached. Thereby, the upper part of the cover body 5 is fixed to the housing | casing 2f.
In this state, the pressing member 5d is elastically brought into contact with the flat cable 3 with a predetermined interference margin.

Next, as shown in FIG. 6, the vicinity of the pair of overhang portions 5e is pushed in with a finger F or the like (see arrow DRd).
By this pushing, the lid body 5a is elastically deformed as shown in FIG. 7A, and the overhanging portion 5e is inserted inside the insertion opening 2g as shown in FIG. 7B.

7A and 7B are schematic cross-sectional views at the position S7-S7 in FIG.
When the finger F pushes in the direction of the arrow DRd, as shown in FIG. 7A, the lid main body portion 5a is elastically deformed so that the protruding portion 5e rises and passes through the insertion port 2g.

  At the time of this passage, the inclined edge 5e1 inclined so as to gradually protrude outwardly as it moves away from the bent part 5a2 contacts the side edge 2g1a (see also FIG. 5) of the insertion opening 2g. The hit angle becomes smaller. Thereby, elastic deformation smoothly proceeds with a small force, and the elastic deformation of the overhang portion 5e and the passage of the side edge portion 2g1a are promoted.

When the protruding portion 5e passes through the side edge 2g1a of the insertion port 2g and enters the inside of the housing 2f, the overhanging portion 5e urges the inner surface 2f2 of the housing 2f upward to return to its shape (see arrow DRe).
The lid body 5 is securely attached to the housing 2f by covering the insertion opening 2g by inserting the protruding portions 5e on both sides in the width direction of the lid body portion 5a into the inside of the housing 2f in this way.

A state where the lid 5 is attached to the housing 2f is shown in FIGS.
FIG. 8 is a plan view corresponding to a state in which the lid 5 is attached to the housing 5f shown in FIG. FIG. 9 is a cross-sectional view at the position S9-S9 in FIG.

  As shown in FIG. 8, the lid 5 is attached so as to substantially cover the entire surface of the base opening 2g1 of the insertion port 2g. Thereby, the foreign substance approach from the insertion port 2g to the inside of the housing 2f can be substantially prevented.

As shown in FIG. 9, the pressing member 5 d softly presses the flat cable 3 with the lid 5 attached to the housing 2 f.
Since the pressing member 5d is formed of a flexible urethane foam material having flexibility, it can be pressed without affecting the flat cable 3.

Thereby, even if the flat cable 3 moves with the movement of the display part 2, the movement is suppressed by the pressing member 5d in the insertion port 2g.
Therefore, an excessive load is not applied to the connector 2d, and the long-term reliability of the display unit 2 is ensured.

(Opening of 2g through hole)
With the lid 5 attached to the housing 2f, the lid 5 can be changed from a closed state in which the insertion opening 2g is closed as described above to an open state in which the lid 5 is opened.

  Specifically, first, the lower edge portion 5a1 of the lid main body portion 5a is lifted with a thin stick or claw, and elastically deformed so that the front end side in the width direction of the overhang portion 5e rises toward the inside of the housing 2f. Pull out 2g through the insertion hole.

When lifting the lower edge 5a1, it is preferable to insert a rod-like object or claw into the gap B (see FIG. 8) on the side of the flat cable 3 in the entrance / exit opening 2g2.
The overhanging portion 5e and the vicinity thereof are elastically deformed when passing through the insertion opening 2g, and return to the original flat plate state after being drawn out of the housing 2f.

When the overhanging portion 5e is pulled out from the insertion port 2g, the lower edge 5a1 side is further lifted.
At this time, the lid main body 5a has a perforation or the like formed in the bent portion 5a2 so that it can be easily bent, so that the lower side opens with the bent portion 5a2 as a fulcrum as shown in FIG. To turn.
As a result, the insertion opening 2g is in an open state, and the flat cable 3 can be removed from the connector 2d and reattached when the display unit 2 is repaired.

The lid main body 5a can be bent multiple times at the bent portion 5a2.
That is, when the repair or the like of the display unit 2 is completed, the lid body 5a is rotated in the direction of the arrow DRf with the bent portion 5a2 as a fulcrum, and the pair of projecting portions 5e are removed from the insertion port 2g by the above-described method. By inserting it inside, the insertion opening 2g can be closed again and the flat cable 3 can be pressed.

  Thus, the lid 5 can repeatedly open and close the insertion opening 2g in a state of being attached to the housing 2f. In addition, it is not necessary to attach or detach the lid by rotating a screw, etc., and the lid body 5a can be simply rotated and pushed into the housing 2f so as not to be opened. Opening and closing is very easy.

Further, the lid body 5a of the lid 5 can be processed and formed from a resin sheet material with a simple and inexpensive die. This eliminates the need for expensive molds for injection molding and pressing, reduces costs, and enables use in a short period of time.
In addition, when changing the shape of the insertion opening 2g, it is possible to cope with it simply by creating a simple and inexpensive punching die. As a result, an increase in cost is suppressed, and the time required for changing is also extremely shortened.

In addition, an appropriate rigidity corresponding to the size of the insertion opening 2g of the lid main body 5a and a force for elastically deforming the lid main body 5a to insert the overhanging portion 5e into the insertion opening 2g or pull it out from the inner side. And the magnitude of the force for pressing the flat cable 3 with the pressing member 5d can be adjusted by changing the type of resin used as the material and the thickness of the sheet material.
Thereby, the adjustment work in the design stage is made efficient, and the design period is shortened.

  Thus, the above-described cover attachment structure for the flat cable insertion opening allows the flat cable insertion opening to be easily opened and closed, and can be used repeatedly for opening and closing. Moreover, it can respond to the shape change of the insertion opening in a short time at a low cost.

  The embodiments of the present invention are not limited to the above-described configuration, and modifications may be made without departing from the spirit of the present invention.

(Modification 1)
As a first modification, the lid 5 may be transformed into a lid 5A that also covers the entrance / exit opening 2g2 of the insertion port 2g.
11 and 12 are a plan view and a cross-sectional view corresponding to FIGS. 8 and 9. 12 is a cross-sectional view at the position S12-S12 in FIG.

The lid main body 5Aa of the lid 5A has an extending portion 5j as an overhanging portion that projects downward corresponding to the shape of the access opening 2g2.
When the lid body 5Aa has the extending portion 5j, the lid 5 has a gap area in a plan view between the insertion port 2g and the lid 5A in a state where the lid 5A closes the insertion port 2g. Less and substantially no gap.
Thereby, even when the foreign matter is small, entry into the housing 2f can be more effectively prevented.

Further, the flat cable 3 passing through the insertion port 2g is elastically pressed by the extending portion 5j in addition to the pressing by the pressing member 5d.
Thereby, the unnecessary movement of the flat cable 3 accompanying the movement of the display part 2 can be suppressed more effectively. Therefore, the load applied to the connector 2d is further reduced.

(Modification 2)
FIGS. 13A and 13B are views for explaining a lid body 5B which is a modified example 2 of the lid body 5. FIG. 13A is a developed view as seen from the back side, and FIG. ) Is a perspective view seen from the front side obliquely lower side in the use state.

As shown in FIG. 13A, the lid body 5B has a knob portion 5k and a pressing portion 5m extending downward at a portion corresponding to the lower edge portion 5a1 of the lid main body portion 5Ba.
In this example, a pair of knobs 5k is formed at both ends in the width direction.
The pressing portion 5m is formed in the widthwise length corresponding to the width of the flat cable 3 at the center in the width direction.
The pair of knobs 5k and the presser 5m are formed with perforations 5a5 and perforations 5a6 at positions corresponding to the lower edge 5a1 of the lid 5, and can be easily bent at the perforations 5a5 and perforations 5a6, respectively. It is like that.

When using the lid 5B, as shown in FIG. 13 (b), the knob 5k is bent to one side (front side) at the perforation 5a5. The bending angle is, for example, in the range of 30 ° to 60.
The pressing portion 5m is bent so as to be folded back to the other side (back side) at the perforation 5a6. The bending angle is, for example, in the range of 120 to 150 °.

  By bending the knob portion 5k to the front side, the lid body portion 5Ba of the lid body 5B is opened by pulling the protruding portion 5e outward from the attached state in which the protruding portion 5e is inserted inside the housing 2f. Can be picked with. Thereby, the operation | work which opens the cover body 5 becomes easier.

  By bending the pressing portion 5m to the back side, the pressing portion 5m can press the flat cable 3 in the attached state. As a result, unnecessary movement of the flat cable 3 can be suppressed without using the pressing member 5d, thereby reducing the cost.

  The lid 5B is not limited to having both the knob 5k and the pressing part 5m, but may have only one of them.

(Modification 3)
When the housing 2f of the display unit 2 is formed of sheet metal, a folded portion 2f3 by so-called hemming processing is provided on the edge 2g3 (see FIG. 2) from which the flat cable 3 of the insertion port 2g is drawn, as shown in FIG. It is good to form.
Thereby, the movement of the flat cable 3 accompanying the movement of the display unit 2 is particularly large, and the flat cable 3 is not damaged even when the movement is rubbed against the edge 2g3.

(Modification 4)
The above-described lid bodies 5 and 5A are attached to the lid main body portions 5a and 5Aa by using the double-sided tape 5b as a fixing means in order to be attached to the housing 2f. Even when the double-sided tape 5b is not used, it is necessary to fix the lid main body portions 5a and 5Aa to the housing 2f with an adhesive or the like.
On the other hand, the lid body 7 of the modified example 4 can be detachably attached to the housing 2f without using fixing means such as a double-sided tape or an adhesive.

15 to 17 are diagrams for explaining the lid body 7.
15 is a plan view of the lid body 7, FIG. 16 is a perspective view for explaining the attachment of the lid body 7 to the insertion port 2g, and FIG. 17 shows the lid body 7 on the surface of the housing 2f. It is a perspective view which shows the state attached so that the insertion port 2g might be blocked.
In this example, the insertion port 2g is a rectangular hole.

  The lid body 7 is formed by punching a resin sheet material into a shape corresponding to the shape of the insertion opening 2g with a punching die. A perforation 7a2 is formed at a predetermined position.

Specifically, overhanging portions 7e and 7e projecting outward in the width direction are formed on the edge portions 7a and 7a which are both ends in the width direction of the lid body 7, respectively. The overhang portion 7e is a portion corresponding to the first overhang portion (the overhang portion 5e).
Further, on the edge portions 7b and 7b which are both ends in the vertical direction of the lid body 7, flange portions 7p and 7p extending upward and downward, respectively, are formed at the central portion in the width direction. The collar portion 7p is a portion corresponding to the second overhanging portion (the overhanging portion 5qe).

In addition, a pair of positioning portions 7s and 7s are formed on the edge portions 7b and 7b so as to sandwich the flange portion 7p.
Each positioning portion 7s is formed with a perforation 7a2 at a position corresponding to the edge portion 7b, and can be easily bent using the perforation 7a2 as a fold.

When the lid body 7 is used, as shown in FIG. 16, each positioning portion 7s is bent to the same side at the position of the perforation 7a2.
Then, the lid body 7 in which the positioning portion 7s is bent is fitted into the insertion opening 2g.

  At this time, since the vertical outer distance of the bent positioning portion 7s corresponds to the vertical distance of the insertion opening 2g, the vertical position when the lid body 7 is mounted is guided. Thereby, the lid body 7 can be easily fitted into the insertion opening 2g.

Next, the vicinity of the pair of overhanging portions 7e is pushed with a finger or the like to be elastically deformed, and each overhanging portion 7e is inserted into the inside of the housing 2f.
Accordingly, the lid body 7 is attached to the housing 2 f, and the insertion opening 2 g is closed by the lid body 7.

The lid body 7 attached to the housing 2f can be removed by lifting any one of the edges and pulling out each protruding portion 7e from the inside to the outside while elastically deforming each overhanging portion 7e. As a result, the insertion opening 2g is opened.
The lid 7 can be repeatedly removed and attached, that is, the opening and closing of the insertion opening 2g can be repeated.

  As shown in FIG. 18 (a), the bent portion 5a2 of the lid main body portions 5a and 5Aa is separated from the upper edge 2g4 (see also FIG. 2) of the insertion port 2g to the side fixed by the double-sided tape 5b. It is better to be in the right position.

  As shown in FIG. 18B, the lid body 5a (5Aa) can be easily turned up with the bent portion 5a2 as a fulcrum to open the insertion port 2g because there is no interfering member. (See arrow ○). The ease of this rotation is the same regardless of the vertical position of the bent portion 5a2.

On the other hand, the rotation of inserting the lid main body 5a (5Aa) into the inner side from the insertion opening 2g indicated by the alternate long and short dash line moves the bent portion 5a2 from the edge 2g4 to the side fixed by the double-sided tape 5b. When set, it is regulated by interference with the edge 2g4.
In this case, it is preferable because the overhanging portion 5e enters the inside of the housing 2f and the force for urging the inner surface 2f2 of the housing 2f upward is increased, and the lid 5 more reliably closes the insertion opening 2g.

  The electronic device is not limited to a car navigation device. Any device may be used as long as the flat cable passes through the insertion port formed in the housing inside and outside the housing.

DESCRIPTION OF SYMBOLS 1 Main-body part, 1a Connector, 1b Circuit board 2 Display part 2a Image display part, 2b Operation part, 2c Link bar 2d Connector, 2e Circuit board, 2f Case, 2f1 Back surface 2f2 Inner surface, 2f3 Folding part, 2g Insertion opening 2g1 Base Opening, 2g1a side edge, 2g2 In / out opening 2g3, 2g4 Edge 3 Flat cable 5, 5A, 5B Lid 5a, 5Aa, 5Ba Lid body, 5aa edge 5a1 Lower edge, 5a2 Bending part, 5a3 Back 5a4 upper edge, 5a5, 5a6 perforation, 5b double-sided tape 5c protruding member, 5d holding member (cable holding member)
5e overhanging part (first overhanging part), 5e1 inclined edge part, 5e2 outer edge part 5e3 lower edge part, 5j extension part, 5k knob part 5m pressing part, 5q base part, 5qe overhanging part (second Overhang)
7 Lid 7a, 7b Edge, 7a2 Perforation 7e Overhanging portion (first overhanging portion), 7p Eaves portion (second overhanging portion)
7s Positioning part 51 Car navigation device (navigation device)
Da, Db, La, Lb, L3, LAa, DAa Length, DAc distance LAb Overhang distance, θa, θb angle

Claims (6)

An insertion port formed in the housing and through which the flat cable is inserted;
A lid formed of a resin sheet material;
With
The lid is
A base portion having a shape corresponding to the insertion opening, and first and second projecting portions projecting from the base portion,
The first projecting portion can be elastically deformed to enter / exit the housing through the insertion port,
The insertion is performed in a closed state in which the base portion closes the insertion port in a state where the second overhanging portion is along the outer surface of the housing and the first overhanging portion is placed inside the housing. Attached to the mouth,
A lid attachment structure of a flat cable insertion port that allows the insertion port to be opened in a state where the first projecting portion is extended to the outside of the housing.   The lid attachment structure for a flat cable insertion port according to claim 1, wherein the second overhanging portion is fixed to an outer surface of the housing.   3. The cover attachment structure for a flat cable insertion port according to claim 2, further comprising a bent portion formed with a perforation capable of bending the base portion with respect to the second projecting portion.   The lid attachment structure for a flat cable insertion port according to any one of claims 1 to 3, wherein the first projecting portion is formed in a shape that becomes narrower toward a tip.   An abutting member that elastically abuts against the flat cable passing through the insertion opening in a state where the lid is attached to the insertion opening is attached to one surface side of the base portion. The cover attachment structure of the flat cable insertion port of any one of claim | item 1-4. An insertion opening formed in the housing;
One end side is connected to the connector inside the housing, and the other end side is a flat cable drawn out through the insertion port, and
A lid that is formed of a resin sheet and opens and closes the insertion opening,
The lid is
A base portion having a shape corresponding to the insertion opening, and first and second projecting portions projecting from the base portion,
The first projecting portion can be elastically deformed to enter / exit the housing through the insertion port,
The insertion is performed in a closed state in which the base portion closes the insertion port in a state where the second overhanging portion is along the outer surface of the housing and the first overhanging portion is placed inside the housing. Attached to the mouth,
An electronic device that allows the insertion port to be opened in a state where the first overhanging portion is extended to the outside of the housing.

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