JPH1069948A - Installation structure of flat cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To do with a small space necessary for installing a flat cable which has improved in installation operability. SOLUTION: In a connector housing 10, an installation part 21 of a terminal 20 unitedly attached to the housing 10 is extended in a cantilever-like manner. A hook 35 is folded back and unitedly fixed in the tip end part of a flat cable 30. The flat cable 30 can be installed in the connector housing 10 by hooking the hook 35 at the installation part 21 and pulling the flat cable 30. The hook 35 is made as to be hooked at the installation part 21, so that the installation operation can be carried out easily even if the flat cable 30 has flexibility and is easy to be buckled. On the completion of the installation, since the installation part 21 is housed in the hook 35, a small space is enough to carry out the installation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible flat cable mounting structure.

[0002]

2. Description of the Related Art Conventionally, as a means for attaching a flexible flat cable, a leading edge of the flat cable is inserted into a slit-shaped opening provided in a connector housing, and a lever is depressed to sandwich the flat cable so that the flat cable is restricted. However, when a flat cable is inserted into a narrow slit, buckling of the flat cable is apt to occur, so that there is a problem that operability is poor.

In order to prevent the flat cable from being buckled, Japanese Unexamined Patent Publication No.
There is one disclosed in US Pat. In this case, as shown in FIG. 11, a side projection 2 is provided at the tip of the flat cable 1, and the tip of the flat cable 1 including the projection 2 can be dropped into the connector housing 3. In addition to the provision of the concave portion 4, the slit portion 5 capable of sandwiching the protruding portion 2 is provided so as to be continuous with the concave portion 4. When attaching the flat cable 1, the tip including the protrusion 2 of the flat cable 1 is dropped into the recess 4, and the flat cable 1 is pulled backward to fit the protrusion 2 into the slit 5.
Follow the steps below. According to such a structure, the flat cable 1 is not pressed, so that the flat cable 1 does not need to buckle, so that operability is improved.

[0004]

However, in the case of the above, the flat cable 1 has a laterally projecting portion 2 at the distal end thereof.
Is provided, the width of not only the flat cable 1 but also the connector housing 3 is increased. In addition, in a state where the flat cable 1 is mounted, the flat cable 1 is wastefully present such that the concave portion 4 projects further forward than the leading edge. Therefore, there is a problem that a large space is required for attaching the flat cable 1.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a mounting structure in which the space required for mounting the flat cable can be reduced in an improved flat cable mounting operation. It is intended to be.

[0006]

According to a first aspect of the present invention, a distal end of a flexible flat cable having a conductive wire disposed on a surface thereof is attached to a mating connecting member having a contact portion.
A flat cable mounting structure for bringing the contact portion and the conductive wire into contact with each other, wherein the mating connection member is provided with a mounting portion extending in a cantilever manner, and is provided at a distal end portion of the flat cable. Is characterized in that a hook is integrally fixed in a folded shape, and the flat cable is attached to the mating connection member by hooking the hook on the attachment portion and pulling the flat cable.

A second aspect of the present invention is characterized in that, in the first aspect of the present invention, the hook has elasticity capable of pressing the mounting portion when the hook is mounted on the mounting portion. A third aspect of the present invention is characterized in that, in the second aspect of the present invention, the contact portion is disposed at a position in the mounting portion that receives the elastic clamping force of the hook. According to a fourth aspect of the present invention, in the second or third aspect of the present invention, the hook is provided with a locking portion that can be elastically returned in a direction of pressing the mounting portion, and the mounting portion has a regular hook. It is characterized in that a retaining portion which can be locked with the locking portion in the mounted state is provided in a stepped shape.

[0008] The invention of claim 5 is the invention of claims 1 to 4.
In any one of the inventions described above, the hook is characterized in that an operation piece projecting laterally with respect to a mounting direction to the mounting portion is provided. The invention according to claim 6 is the invention according to any one of claims 1 to 5,
The mating connection member is characterized in that a stopper for restricting excessive displacement of the hook when the hook is detached from the mounting portion along the extending direction is provided.

[0009]

According to the first aspect of the present invention, when the flat cable is attached to the mating connecting member,
Position the hook slightly ahead of the mounting part, align the opening of the hook with the extension end of the mounting part, and pull back the flat cable. Then, the hook is hooked so as to be sandwiched with respect to the attachment portion, and the flat cable is attached to the mating connection member. Since a hook provided so as to be folded back at the tip of the flat cable is used as means for attaching to the mating connection member, an increase in the size of the flat cable is avoided. Further, since the mounting portion provided as the mounting means on the mating connection member is accommodated in the hook, the size is reduced as compared with the case where the mounting means of the mating connection member protrudes from the mounting area with the flat cable. be able to. As described above, according to the present invention, the space required for attaching the flat cable can be minimized.

According to the second aspect of the present invention, when the hook is mounted on the mounting portion, the hook is held in the mounted state by the clamping action of the mounting portion by the elasticity of the hook. According to the third aspect of the present invention, the contact portion is elastically contacted with the conductor of the flat cable by receiving the elastic clamping force of the hook, so that a high contact pressure is secured between the contact portion and the conductor, and the contact reliability is ensured. The performance is improved. According to the fourth aspect of the present invention, in the process of attaching the hook to the attaching portion, the engaging portion slides on the attaching portion and elastically bends. However, when the hook reaches the regular attaching state, the engaging portion elastically returns. The hook is locked to the retaining portion, and the hook is held in a state where the hook is restricted from being removed from the mounting portion. When the locking part is locked to the retaining part, the retaining part forms a step and the locking part returns elastically and vigorously, so that the operator can feel the sound and moderation feeling accompanying the locking operation. It can be clearly seen that this has led to the proper mounting state.

According to the fifth aspect of the present invention, when the flat cable is attached to the attachment portion, the hook is displaced in the direction of pulling the flat cable so that a finger is hooked on the operation piece. A load does not need to be applied to the fixing portion of the wire. Further, when the flat cable is detached, if the spare is hooked on the operation piece, the detachment of the hook from the attaching portion can be performed easily and reliably.

In the invention according to claim 6, even if the hook comes off vigorously when the hook is pulled out from the mounting portion along the extending direction thereof with force, the hook is excessively displaced by hitting the stopper. Is prevented.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 Embodiment 1 of the present invention will be described below with reference to FIGS. In the present embodiment, a case will be described in which the flat cable 30 is attached to a connector housing (a mating connection member which is a constituent element of the present invention) 10 fixed on a circuit board P.

The flat cable 30 has a structure in which a plurality of flexible conductive wires (not shown) are arranged in parallel on the lower surface of a sheet-like base material having a certain width of flexibility. As such a flat cable 30, for example, FPC
(Flexible printed circuit board) and FPC (flexible flat cable)
and so on. The tip (the left end in the figure) of this flat cable 30 is bent downward and to the rear (to the right in the figure).
It is folded back into a U-shape.

The folded portion 3 of the flat cable 30
At 0A, a J-shaped hook 35 formed by bending a plate material so as to be folded is integrally fixed so as to overlap from the outside. A flat portion 35B having a short length in the front-rear direction with respect to the folded portion 35A of the hook 35 is in close contact with the folded portion 30A of the flat cable 30. The hook 35 is arranged outside the flat cable 30 and is connected to a terminal 2 described later.
Since there is no direct contact with 0, the material of the hook 35 may be a conductive material such as a metal or an insulating material such as a synthetic resin. The flat cable 30 and the hook 3
As a means for fixing 5, a method by adhesion, a method by welding, or the like is used. In any case, the strength is such that it is not easily detached only by receiving an external force such as a tension applied in a normal working process. It has a fixing force. Further, the rear end (the right end in the figure) of the flat portion 35C on the upper side of the hook 35 is attached to the upper side of the figure (the flat cable 30).
An operation piece 36 is formed to protrude in a direction substantially perpendicular to the length direction.

As shown in FIG. 1, the connector housing 10 has a yokan-shaped main body 11 that is long in the left-right direction, and cantileverly extends forward from the lower edge of the front end (left end in FIG. 1) of the main body 11. And a pair of left and right side plate portions 13 rising so as to sandwich a front space of the main body portion 11 and an upper space of the bottom plate portion 12. A plurality of L-shaped cavities 14 are formed in the main body 11 so as to open in a slit shape along the upper surface and the rear end surface thereof in parallel in the left-right direction.
The main body 11 is formed with a holding hole 15 that opens to the rear side of each cavity 14. Such a cavity 1
The terminals 4 are respectively accommodated in the terminals 4.

The terminal 20 includes a mounting portion 21 that cantileverly extends forward, a contact portion 22 provided at a front end of the mounting portion 21, and a lower end extending downward from a rear end of the mounting portion 21 and having a lower end. It has an L-shaped board connection part 23 bent to the side and a holding part 24 protruding forward from the board connection part 23.
The upper surface and the lower surface of the contact portion 22 are formed in a shape protruding in a mountain shape, and the contact portion 22 comes into contact with the conductor of the flat cable 30. Such terminal 20
Is mounted so as to fit into the cavity 14 from behind the main body 11 and to fit the holding portion 24 into the holding hole 15, and is held in a retaining state by the projection 24 </ b> A of the holding portion 24.

When the terminal 20 is integrally mounted on the connector housing 10 as described above, the mounting portion 21 of the terminal 20 extends forward from the main body 11 in a cantilever manner. The distal end of the flat cable 30 and the hook 35 are hooked to the portion 21. Further, the support portion of the terminal 20 is flush with the upper surface of the main body 11 of the connector housing 10, the board connecting portion 23 is flush with the rear end face of the main body portion 11, and the lower end face of the board connecting portion 23 is flush with the main body portion. 11 and the lower surface of the bottom plate portion 12.

The connector housing 10 to which the terminal 20 has been attached in this manner is fixed to a predetermined position on the upper surface of the circuit board P by fixing means (not shown) such as bolting. In the fixed state, the board connection part 23 of each terminal 20 is connected to a contact point (not shown) of a circuit on the circuit board P. Next, the operation of the present embodiment will be described. When attaching the flat cable 30 to the connector housing 10 in which the terminal 20 is integrated, the operator grasps the flat cable 30 and
As shown in FIG. 3, the distal end of the flat cable 30 is put on the connector housing 10, and the bent end of the hook 35 is located forward (to the left in the figure) of the distal end of the mounting portion 21 of the terminal 20. Position.

Then, as shown by the arrow in the figure, the flat cable 30 is placed on the upper surface of the terminal 20 by lowering the tip ends of the flat cable 30 and the hook 35 as a whole. The flat cable 30 and the hook 35 are pinched as shown by arrows in FIG.
Is moved backward as a whole. Then, as shown in FIG. 4, the hook 35 is hooked on the mounting portion 21, and the distal end portion of the flat cable 30 bent along the inside of the hook 35 comes to sandwich the mounting portion 21, When the flat cable 30 is further pulled backward as it is, the installation is completed and the state shown in FIG. 5 is obtained.

Instead of pulling the flat cable 30 backward, a finger may be hooked on the operation piece 36 of the hook 35 and slid backward. By doing so, it is possible to reduce the stress generated in the fixed portion between the flat cable 30 and the hook 35 and the flat cable 30 itself. In this state, the contact portion 2 of the terminal 20
2 and the conducting wire of the flat cable 30 are conductively contacted. The positioning of the flat cable 30 in the left-right direction with respect to the terminal 20 is performed by contacting both side edges of the flat cable 30 with both side plate portions 13 of the connector housing 10, so that the predetermined contact portion 22 and the predetermined conductor are securely connected. Come into contact.

In the attached state, the flat cable 30 is provided by using another holding member (not shown).
And the hook 35 may pinch the mounting portion 21. In this manner, the flat cable 30 is reliably prevented from coming off from the mounting portion 21 and the contact portion 2
2 improves the contact reliability between the conductive wire. When removing the flat cable 30 from the connector housing 10, the finger is hooked on the operation piece 36 of the hook 35, and the hook 35 and the flat cable 30 are pushed out to remove the flat cable 30 from the mounting portion 21.
5 may be lifted.

As described above, in the present embodiment, the hook 3 provided at the tip of the flat cable 30 when the flat cable 30 is attached to the connector housing 10.
Since the cable 5 is hooked on the cantilever-shaped mounting portion 21, the mounting operation can be easily performed even in a situation where the flat cable 30 has flexibility and is easily buckled. In addition, as a means for attaching the flat cable 30 to the flat cable 30, the folded-back hook 35 is provided at the end of the flat cable 30, so that the flat cable 30 does not need to be large. Further, when the mounting is completed, the mounting portion 21 as the mounting means on the connector housing 10 side is housed in the hook 35, so that the mounting means on the connector housing 10 side is in the mounting area with the flat cable 30. The size is reduced compared to the structure that protrudes. As described above, according to the present embodiment, the flat cable 30 and the connector housing 10 are reduced in size, and the space required for mounting the flat cable 30 is minimized.

Further, in this embodiment, since the operation piece 36 is provided on the hook 35 and the operation can be performed by hooking a finger on the operation piece 36, when the flat cable 30 is attached, Hook 35
No load is applied to the fixed portion of the flat cable 30 and the flat cable 30 itself.
It is excellent in operability because it does not cause buckling. <Embodiment 2> Next, Embodiment 2 of the present invention will be described with reference to FIG. The third embodiment is different from the first embodiment in that a part of the fixing structure of the flat cable and the hook is different. Since other configurations are the same as those in the first embodiment, the same configurations are described below.
The same reference numerals are given and the description of the structure, operation and effect is omitted. In the first embodiment, the tip of the flat cable 30 is folded back into a U-shape, whereas in the second embodiment, the tip of the flat cable 30 is not folded and is fixed to only the upper flat portion 35C of the hook 35. Have been. Accordingly, the upper and lower flat portions 35 of the hook 35
The distance between C and 35B is set to be narrower by a dimension corresponding to the thickness of the flat cable 30 than in the first embodiment. Further, since the folded portion of the hook 35 comes into direct contact with the terminal 20, the hook 35 is made of an insulating material.

<Third Embodiment> Next, a third embodiment of the present invention will be described with reference to FIGS. The configuration of the flat cable 30 according to the third embodiment is the same as that of the flat cable 30 according to the first embodiment except that the distal end is not folded back. A generally U-shaped hook 40 is attached to the tip of the flat cable 30. The flat portion 40A on the upper side of the hook 40 is integrally fixed to the upper surface of the flat cable 30. An arc-shaped portion 40B continues downward from the tip edge of the flat portion 40A, and the tip of the arc-shaped portion 40B is inclined upward. The locking portion 40C faces the flat portion 40A, and the tip of the locking portion 40C is a guide portion 40D facing obliquely downward so as to open with respect to the flat portion 40A. An operation piece 41 protruding upward is formed at the rear end of the flat portion 40A. The hook 40 is made of an elastic material,
The flat portion 40A and the locking portion 40C can be elastically bent so as to come and go. In the free state, the distance between the flat portion 40A and the locking portion 40C is set to be slightly smaller than the height (thickness) of the mounting portions 56 and 61 of both the terminal 60 and the connector housing 50 described later. I have. The hook 40 is connected to the terminal 60.
Since it does not make direct contact with the conductive material, either a conductive material or an insulating material may be used.

The connector housing 50 has a main body 51, a bottom plate 52, a side plate (not shown), a cavity 54, and a holding hole 55, as in the first embodiment. Since it is the same as the connector housing 10 of the first embodiment, a detailed description is omitted. The connector housing 50 according to the third embodiment includes a main body 51.
A mounting portion 56 is formed to extend in a cantilevered manner from the front. A guide surface 57 having a tapered shape is formed on the lower surface of the distal end portion of the mounting portion 56, and a retaining portion 58 recessed in a step shape is formed at a position behind the guide surface 57. Further, the bottom plate portion 52 is formed with a wall-shaped stopper 59 rising from the front edge. The distance between the stopper 59 and the tip of the mounting portion 56 is
The length is set wider than the length from the front end of the 0 arc-shaped portion 40B to the rear end of the guide portion 40D.

The terminal 60 has a mounting portion 61, a board connecting portion 62, and a holding portion 63, as in the first embodiment. The attachment portion 61 extends forward in a cantilever manner, and is positioned so as to be integrally overlapped along the upper surface of the attachment portion 56 of the connector housing 50 when attached to the connector housing 50. On the upper surface of the mounting portion 61 of the terminal 60, a contact portion 64 projecting in a mountain shape is formed in a region corresponding to the mounting portion 56 of the connector housing 50.

In the third embodiment, the flat cable 3
When the flat cable 30 is attached to the connector housing 50, the flat cable 30 is picked up and the hooks 40 are attached to the attaching portions 56 and 6.
7, the flat cable 30 and the hook 40 are lowered from that state, and the flat cable 30 is placed on the upper surface of the terminal 60 as shown in FIG. From this state, the flat cable 30
While pulling, or pull the operation piece 4 of the hook 40
By hooking a finger on 1, the flat cable 30 and the hook 40 are entirely slid backward. Then
The guide portion 40C of the hook 40 is connected to the connector housing 50.
Of the arc-shaped portion 40B due to its inclination.
Is elastically expanded and deformed while the locking portion 40C is
Get on. Then, when the flat cable 30 and the hook 40 reach the proper attachment position, as shown in FIG. 8, the locking portion 40C passes through the guide surface 57 and is elastically restored to be locked to the retaining portion 58. Thus, the installation of the flat cable 30 is completed.

In this state, since the hook 40 is still slightly elastically expanded, the mounting portions 56, 61 are sandwiched from above and below by the elasticity of the hook 40. Therefore, the conductor of the flat cable 30 comes into contact with the contact portion 64 of the terminal 60 with a high contact pressure, and the contact reliability is improved without using another member. The locking portion 40C and the retaining portion 5
8, the hook 40 is attached to the mounting portions 56, 61.
Therefore, the function of holding the flat cable 30 in the attached state is highly reliable.

Further, when the engaging portion 40C engages with the retaining portion 58 in the normal mounting state, the retaining portion 40C has a step-like shape. The restoring force vigorously engages and generates a sound and a slight impact. Since this is perceived by the operator as a lock sound or a sense of moderation, the operator can clearly recognize that the flat cable 30 has been properly attached. Therefore, there is no need to pull the flat cable 30 more than necessary or to visually confirm the completion of installation.

When the flat cable 30 is removed from the connector housing 50, an operation of pushing or pulling the hook 40 forward with a strong force against the elasticity of the hook 40 is performed.
There is a possibility that the moment when the vehicle escapes from 6, 61, the vehicle may jump forward with excessive momentum. However, in the present embodiment, since the stopper 59 is provided in front of the mounting portions 56 and 61, the hook 40 that has vigorously popped out will hit the stopper 59,
It is reliably prevented that the hook 40 moves further forward from the region of the bottom plate portion 52 and contacts the upper surface of the circuit board P.

<Fourth Embodiment> Next, a fourth embodiment of the present invention will be described with reference to FIG. The flat cable 30 of the fourth embodiment is the same as that of the third embodiment. Hook 7 provided at the tip of flat cable 30
Reference numeral 0 denotes a flat portion 70A having elasticity and fixed to the distal end portion of the flat cable 30, a flat pressure portion 70B extending stepwise from the front end of the flat portion 70A, and a downward pressure from the pressure portion 70B. An arc-shaped portion 70C bent so as to be folded back and a locking portion 70D at the tip of the arc-shaped portion 70C are provided. The connector housing 80 is similar to the third embodiment,
The main body portion 81, the cavity 82, the holding hole 83, a mounting portion 84 extending cantileverly forward from the main body portion 81, a guide surface 85 on the lower surface of the mounting portion 84, and continuous with the guide surface 85. A retaining portion 86 is provided. The terminal 90 does not include components corresponding to the mounting portions 21 and 61 of the above embodiments, and includes a board connecting portion 91 and a holding portion 92.
And a contact portion 93. Contact 93
Is disposed at a position behind the mounting portion 84 of the connector housing 80.

The flat cable 3 according to the fourth embodiment
The operation of attaching the “0” to the connector housing 80 is the same as that of the above-described embodiment, and a description thereof will be omitted. In the state where the attachment is completed, the flat cable 30 is prevented from coming off by the engagement of the locking portion 70D with the retaining portion 86, and the elasticity of the hook 70 moves the mounting portion 84 between the locking portion 70D and the contact pressure portion 70B. And the floating of the flat cable 30 in the up-down direction and the forward / backward tilt direction is regulated.
The flat portion 70 </ b> A presses the tip of the flat cable 30 against the contact portion 93 of the terminal 90 by the elasticity of the hook 70. Therefore, in the fourth embodiment, the contact portion 93 of the terminal 90 exists outside the area of the attachment portion 84, but the contact between the flat cable 30 and the terminal 90 is reliably performed.

<Fifth Embodiment> Next, a fifth embodiment of the present invention will be described with reference to FIG. Embodiment 5
In the third embodiment, the mounting portion 56 of the connector housing 50 has elasticity. Other configurations are the same as those of the third embodiment, and thus the same configurations are denoted by the same reference numerals, and description of the structures, operations, and effects will be omitted. The mounting portion 56 of the connector housing 50 includes a fixed mounting portion 56A that overlaps along the lower surface of the mounting portion 61 of the terminal 60, and a flexible mounting portion 56B that cantileverly extends forward below the fixed mounting portion 56A. Consists of The flexible mounting portion 56B has the guide surface 5
7 and a retaining portion 58, and can be elastically bent upward as shown by a chain line in FIG. On the other hand, the hook 40 includes a flat portion 40A and an arc-shaped portion 40B, and further has an arc-shaped portion 4A.
A locking portion 40E protruding upward (in a direction toward the flat portion 40A) is formed at the tip of 0B. Further, since the mounting portion 56 of the connector housing 50 has elasticity, the hook 40 does not have to have elasticity.
Of course, the hook 40 may have elasticity. When attaching the flat cable 30, the hook 40 is hooked on the attaching portion 56 so that the flat cable 30 and the hook 40
Is slid backward, the locking portion 40E is
7, the flexible mounting portion 56B is elastically bent, and when the locking portion 40E finishes passing through the guide surface 57, the flexible mounting portion 56B is elastically restored and the locking portion 40E is simultaneously locked with the retaining portion 5E.
8, the mounting operation is completed.

<Other Embodiments> The present invention is not limited to the embodiments described above and illustrated in the drawings. For example, the following embodiments are also included in the technical scope of the present invention. In addition, various changes can be made without departing from the scope of the invention. (1) In the above embodiment, the case where the mating connection member is a connector housing has been described. However, the present invention can be applied to a case where the mating connection member is a circuit board.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a state before a flat cable is attached to a connector housing in a first embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view showing a state where a flat cable is attached to a connector housing in the first embodiment.

FIG. 3 is a sectional view showing a state before a flat cable is attached to a connector housing in the first embodiment.

FIG. 4 is a cross-sectional view illustrating a process of attaching a flat cable to a connector housing in the first embodiment.

FIG. 5 is a sectional view showing a state where a flat cable is attached to a connector housing in the first embodiment.

FIG. 6 is a sectional view showing a state in which a flat cable is attached to a connector housing in the second embodiment.

FIG. 7 is a sectional view showing a process of attaching a flat cable to a connector housing in the third embodiment.

FIG. 8 is a sectional view showing a state where a flat cable is attached to a connector housing in a third embodiment.

FIG. 9 is a sectional view showing a state where a flat cable is attached to a connector housing in a fourth embodiment.

FIG. 10 is a sectional view showing a state where a flat cable is attached to a connector housing in a fifth embodiment.

FIG. 11 is a perspective view showing a state before a flat cable is attached to a connector in a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Connector housing (other party connection member) 21 ... Mounting part 22 ... Contact part 30 ... Flat cable 35 ... Hook 36 ... Operation piece 40, 70 ... Hook 40C, 40E, 70D ... Locking part 41 ... Operation piece 50, 80 ... Connector housing (partner connection member) 56,61,84 ... Mounting part 58,86 ... Prevention part 59 ... Stopper 64,93 ... Contact part

Claims (6)

[Claims] 1. A mating connection member having a contact portion,
A flat cable attachment structure for attaching a distal end portion of a flexible flat cable having a conducting wire disposed on a surface thereof and bringing the contact portion and the conducting wire into contact with each other, wherein the mating connection member includes A mounting portion extending in a cantilever manner is provided, and a hook is integrally fixed in a folded shape at a tip end of the flat cable, and the flat cable is pulled by hooking the hook on the mounting portion and pulling the flat cable. Is attached to the mating connection member. 2. The flat cable mounting structure according to claim 1, wherein the hook has elasticity capable of pressing the mounting portion when the hook is mounted on the mounting portion. 3. The flat cable mounting structure according to claim 2, wherein the contact portion is disposed at a position in the mounting portion where an elastic clamping force of the hook is received. 4. The hook is provided with a locking portion capable of elastically returning in a direction of pressing the mounting portion, and the mounting portion is capable of locking with the locking portion when the hook is properly mounted. 4. The flat cable mounting structure according to claim 2, wherein the portion is provided in a step shape. 5. The flat according to claim 1, wherein the hook is provided with an operation piece protruding laterally with respect to a mounting direction to the mounting portion. Cable mounting structure. 6. The mating connection member is provided with a stopper for restricting excessive displacement of the hook when the hook is detached from the mounting portion along the extending direction. The flat cable mounting structure according to any one of claims 1 to 5, wherein: