JP3960948B2 - Waterproof structure of planar wiring body and method for forming the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a waterproof structure applied to a connection portion of a planar wiring body.
[0002]
[Prior art]
When connecting a wiring body to another wiring body, in order to prevent moisture from entering the connecting portion, it is widely performed to attach a waterproof member to the wiring body to form a waterproof structure. Conventionally, round electric wires have generally been used as wiring bodies, but recently, flat wiring bodies such as flat cables and circuit boards have come to be used in many cases. As for the above, a waterproof structure for waterproofing a connection portion or the like has been studied.
[0003]
For example, with respect to a waterproof connector used in a flat cable, it is known to provide a seal member so as to cover the outer periphery of the flat cable near the terminal portion (see Patent Document 1). It is also known to provide a sealing member composed of a plurality of elastic block bodies at the end portion of a flat cable constituting a waterproof connector (see Patent Document 2).
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 6-203910 (see page 2, column 2, line 25 to page 3, column 4, line 27, see FIGS. 1 to 4)
[Patent Document 2]
Japanese Patent Laid-Open No. 11-16628 (see page 3, column 3, line 15 to page 7, column 12, line 48, see FIGS. 1 to 16)
[0005]
[Problems to be solved by the invention]
By the way, in the waterproof connector described in patent document 1, the press member for compressing a sealing member is required, and there existed a problem that a waterproof structure and an assembly process became complicated. In addition, the waterproof connector described in Patent Document 2 is a simplified assembly process, and no specific mention is made of further improving waterproofness.
[0006]
Therefore, an object of the present invention is to provide a waterproof structure for a planar wiring body and a method for forming the same, which has a simple structure for enhancing waterproofness and an easy assembly process.
[0007]
[Means for Solving the Problems]
The invention according to claim 1 is a waterproof structure of a planar wiring body in which a waterproof member is attached to the outer periphery of the planar wiring body and the waterproof member is accommodated in a housing, and the waterproof member is formed of a rubber-like elastic material. And having a slit through which the planar wiring body is inserted, and the waterproof member is in a state in which the planar wiring body is not inserted into the slit of the waterproof member, and the width of the slit is the planar shape. The waterproof member is formed so as to be narrower than the width of the wiring body and the height of the slit is higher than the thickness of the planar wiring body, and the waterproof member is accommodated in the housing. Is closely attached to the outer periphery of the planar wiring body.
[0008]
The invention of claim 2 is characterized in that, in the invention of claim 1, the slit is formed by a plurality of protrusions protruding from the inner surface of the waterproof member.
[0009]
The invention of claim 3 is the invention of claim 1, wherein the height of the internal space of the housing is lower than the height of the waterproof member in a state where the planar wiring body is inserted through the slit, and The cross-sectional area of the internal space is 80% or more and less than 100% of the cross-sectional area of the waterproof member in a state where the planar wiring body is inserted through the slit.
[0010]
The invention of claim 4 is a method for forming a waterproof structure of a planar wiring body in which a waterproof member is attached to the outer periphery of the planar wiring body and the waterproof member is accommodated in a housing, wherein the waterproof member is formed of a rubber-like elastic material. And having a slit through which the planar wiring body is inserted, and the waterproof member has a width of the slit in a state where the planar wiring body is not inserted into the slit of the waterproof member. It is formed narrower than the width of the planar wiring body, and the height of the slit is higher than the thickness of the planar wiring body, and the width of the slit is greater than the width of the planar wiring body. In this state, the planar wiring body is inserted into the slit, and then the waterproof member is accommodated in the housing so that the waterproof member is brought into close contact with the outer periphery of the planar wiring body. And butterflies.
[0011]
The invention of claim 5 is characterized in that, in the invention of claim 4, chamfering is performed in advance on the tip of the planar wiring body.
[0012]
According to a sixth aspect of the present invention, in the invention of the fourth aspect, when the planar wiring body is inserted through the slit in a state where the width of the slit is equal to or larger than the width of the planar wiring body, An atmosphere is pressurized to expand the width of the slit to be larger than the width of the planar wiring body.
[0013]
According to a seventh aspect of the present invention, in the sixth aspect of the invention, when the atmosphere in the waterproof member is pressurized to expand the width of the slit to be larger than the width of the planar wiring body, the height direction of the slit is increased. A member that suppresses the expansion is attached to the outside of the waterproof member.
[0014]
That is, the waterproof structure of the planar wiring body according to the present invention has the above-described configuration, so that the waterproof member can be easily attached to the planar wiring body and has a sufficient waterproof performance.
[0015]
Further, according to the method for forming a waterproof structure of a planar wiring body of the present invention, a waterproof structure having sufficient waterproof performance can be easily applied to the planar wiring body.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
[0017]
FIG. 1 is a side sectional view schematically showing a basic example of a waterproof structure for a planar wiring body according to an embodiment of the present invention. In FIG. 1, 1 is a planar wiring body, 2 is a waterproof member provided on the outer periphery of the planar wiring body 1, 3 is a housing provided on the outer periphery of the waterproof member 2, and the waterproof member 2 is inside the housing 3. It is accommodated in the space 4. The waterproof member 2 is formed of a rubber-like elastic material, for example, a natural rubber material, a synthetic rubber material (silicon rubber or the like), an elastomer, or the like. Further, the waterproof member 2 is formed with slits 5 for inserting the planar wiring body 1, and for improving workability when the planar wiring body 1 is inserted at the front and rear ends of the slit 5. A chamfered portion 2a is provided.
[0018]
2A and 2B are diagrams for explaining a process of attaching a waterproof member to the planar wiring body, where FIG. 2A is a front view of the waterproof member, FIG. 2B is a front view of the planar wiring body, and FIG. The front view which shows the state by which the waterproof member was attached to the planar wiring body, (d) is sectional drawing which shows the state by which the waterproof member was attached to the planar wiring body. In FIG. 2, 6 is a gap between the planar wiring body 1 and the slit 5.
[0019]
2 (C) and 2 (D), the gap 6 in the state in which the planar wiring body 1 is inserted into the slit 5 of the waterproof member 2 indicates that the existence thereof is allowed. It goes without saying that 6 need not exist. From the viewpoint that the operation of inserting the planar wiring body 1 into the slit 5 of the waterproof member 2 can be easily performed, it is desirable that the gap 6 is slightly present.
[0020]
In FIG. 2, the width W ₁ of the slit 5 is narrower than the width W ₂ of the planar wiring body 1 and the height of the slit 5 in a state where the planar wiring body 1 is not inserted into the slit 5 of the waterproof member 2. The length t ₁ is higher than the thickness t ₂ of the planar wiring body 1. When the planar wiring body 1 is inserted into the slit 5, the waterproof member 2 extends in the left-right direction of the drawing, and the height of the waterproof member 2 is a height H before the planar wiring body 1 is inserted. ₁ to a height H ₂ after the planar wiring body 1 is inserted (H ₁ > H ₂ ).
[0021]
FIG. 3 is a diagram for explaining a process of housing a waterproof member into which a planar wiring body is inserted in a housing, wherein (a) is a front view of the waterproof member through which the planar wiring body is inserted; ) Is a front view of the housing, and (C) is a front view showing a state in which the waterproof member is accommodated in the housing.
[0022]
FIG. 3A is a view similar to FIG. 2C described above, and the presence of the gap 6 in the state where the planar wiring body 1 is inserted into the slit 5 of the waterproof member 2 is allowed. In the state in which the member 2 is accommodated in the housing 3, the waterproof member 2 comes into close contact with the outer periphery of the planar wiring body 1 as shown in FIG. Thereby, the waterproof performance of the planar wiring body 1 is satisfied.
[0023]
Here, in order to satisfy the waterproof performance of the planar wiring body 1, the height H ₃ of the internal space 4 of the housing ₃ is the same as that of the waterproof member 2 in a state where the planar wiring body 1 is inserted into the slit 5. The cross-sectional area S ₂ of the inner space 4 of the housing 3 is lower than the height H ₂ and is 80% or more and less than 100% of the cross-sectional area S ₁ of the waterproof member 2 with the planar wiring body 1 inserted through the slit 5. It needs to be. When these conditions are not satisfied, a gap is formed between the planar wiring body 1 and the waterproof member 2 in FIG. 3C as well as FIG. Performance will be reduced.
[0024]
The rubber-like elastic material forming the waterproof member 2 is preferably one having a hardness in the range of A30 to A50 as measured by a durometer described in Japanese Industrial Standard (JIS K6253).
[0025]
As mentioned above, although an example of embodiment of this invention was demonstrated, this is a fundamental thing to the last, for example, about the shape of the waterproof member 2, a slight change is possible. This example will be described below as an application example.
[0026]
FIG. 4 is a view showing an example of an application example of the waterproof member used in the embodiment of the present invention, in which (A) is a side view, (B) is a front view, and (C) is a side sectional view.
[0027]
In FIG. 4, a plurality of outer peripheral surface protrusions 22 are continuously arranged in a circumferential shape on an outer surface 21 a (hereinafter referred to as a main body portion outer surface 21 a) of the main body portion 21 of the waterproof member 2. A plurality of inner peripheral surface protrusions 23 are arranged on the inner surface 21 b of the main body 21 (hereinafter referred to as the main body inner surface 21 b) so as to form the slits 5. The other items are the same as those described above with reference to FIG.
[0028]
FIG. 5 is a side sectional view showing a state in which the planar wiring body is inserted through the waterproof member of FIG. Also in FIG. 5, the gap 6 in the state in which the planar wiring body 1 is inserted into the slit 5 of the waterproof member 2 allows its existence, as in FIGS. Needless to say, there is no need for the gap 6 to exist.
[0029]
FIG. 6 is a side cross-sectional view showing a state in which the waterproof member into which the planar wiring body is inserted as shown in FIG. 5 is housed in the housing. As described above, in FIG. 5, the existence of the gap 6 in the state where the planar wiring body 1 is inserted through the slit 5 of the waterproof member 2 is allowed. However, as shown in FIG. In the state of being housed, the waterproof member 2 is in close contact with the outer periphery of the planar wiring body 1 and the gap 6 does not exist, as in the case shown in FIG. Thereby, the waterproof performance of the planar wiring body 1 is satisfied.
[0030]
While the waterproof structure for a planar wiring body according to the present invention has been described above, there is a suitable forming method for the waterproof structure for a planar wiring body according to the present invention. The embodiment will be described below.
[0031]
The method for forming a waterproof structure of a planar wiring body according to an embodiment of the present invention specifically uses the waterproof member illustrated in FIG. 2 or FIG. 4 and uses the planar shape illustrated in FIG. 1 or FIG. This is a method of forming a waterproof structure of a wiring body. Hereinafter, description will be made using the reference numerals shown in FIGS.
[0032]
Here, the feature of this embodiment is in the process of attaching the waterproof member 2 to the planar wiring body 1, and the waterproof member 2 is slit in a state where the planar wiring body 1 is not inserted into the slit 5. 5 is formed so that the width of the slit 5 is narrower than the width of the planar wiring body 1 and the height of the slit 5 is higher than the thickness of the planar wiring body 1.
[0033]
Further, when the waterproof member 2 is attached to the planar wiring body 1, the planar wiring body 1 may be inserted into the slit 5 in a state where the width of the slit 5 of the waterproof member 2 is equal to or larger than the width of the planar wiring body 1. This is a feature of the embodiment.
[0034]
Then, the waterproof member 2 is accommodated in the housing 3 and the waterproof member 2 is brought into close contact with the outer periphery of the planar wiring body 1 to form a waterproof structure of the planar wiring body. Hereinafter, a specific example of this embodiment will be described.
[0035]
FIG. 7 is an explanatory view schematically showing an example of a waterproof member mounting device for realizing a method for forming a waterproof structure of a planar wiring body according to an embodiment of the present invention. In FIG. 7, the waterproof member shown in FIG. 4 will be used for explanation, but the shape of the waterproof member is not limited to that shown in FIG. 4, and may be changed as appropriate.
[0036]
FIG. 8 is a cross-sectional view schematically illustrating a process of forming a waterproof structure on the planar wiring body by the waterproof member mounting apparatus illustrated in FIG. 7. ) Is the state immediately before the waterproof member is attached to the planar wiring body, (c) is the state where the waterproof member is inflated by pressure, and (d) is the state where the waterproof member is attached to the planar wiring body. Show.
[0037]
7 and 8, reference numeral 7 denotes a waterproof member attaching device for attaching the waterproof member 2 to the planar wiring body 1, and is composed of a first box-like portion 71 and a second box-like portion 72. . When the waterproof member attaching device 7 is used, the first box-shaped part 71 and the second box-shaped part 72 are connected via the waterproof member 2.
[0038]
The first box portion 71 is provided with an introduction portion 73 for introducing the planar wiring body 1. A space 71a is provided inside the first box-shaped portion 71, a space 73a is provided inside the introduction portion 73, and the space 71a and the space 73a are in communication. Further, the first box-shaped portion 71 is provided with a through hole 74 that reaches the space 71a. On the other hand, a space 72 a is provided inside the second box-like portion 72.
[0039]
Further, when the first box-shaped portion 71 and the second box-shaped portion 72 are connected via the waterproof member 2, the space 71 a, the space 72 a, and the space 73 a are communicated with each other, and the through hole 74. By sending a gas such as air into the space 71 a, the spaces 71 a, 72 a, 73 a and the waterproof member 2 are pressurized, the slit 5 of the waterproof member 2 is expanded, and the planar wiring body 1 is inserted into the slit 5. It can be easily inserted.
[0040]
7 and 8, the inlet 75 of the introducing portion 73 (hereinafter referred to as “introducing portion inlet”) 75 is such that the gas supplied from the through hole 74 does not easily escape from the space 73 a in the introducing portion 73. It is desirable that the structure has an airtight structure, for example, the inlet 75.
[0041]
As described above, the method for forming the waterproof structure of the planar wiring body using the waterproof member mounting apparatus 7 illustrated in FIGS. 7 and 8 is configured so that the width of the slit 5 of the waterproof member 2 is the width of the planar wiring body 1. When the planar wiring body 1 is inserted through the slit 5 in the above-described state, the atmosphere in the waterproofing member 2 is pressurized to expand the width of the slit 5 beyond the width of the planar wiring body 1. Hereinafter, steps of a method for forming a waterproof structure of a planar wiring body using the waterproof member mounting apparatus 7 illustrated in FIG. 7 will be described with reference to FIGS.
[0042]
Step 1: As shown in FIG. 8 (a), the first box-shaped portion 71 and the second box-shaped portion 72 are opposed to each other, and the waterproof member 2 is attached to the second box-shaped portion 72. Further, the planar wiring body 1 is inserted through the introduction portion 73 of the first box-shaped portion 71.
[0043]
Step 2: As shown in FIG. 8 (b), the first box-shaped portion 71 and the second box-shaped portion 72 are connected via the waterproof member 2, and the waterproof member mounting device 7 is assembled. Until this step, the width of the slit 5 of the waterproof member 2 is narrower than the width of the planar wiring body 1.
[0044]
Step 3: As shown in FIG. 8 (c), a gas such as air is sent from the through hole 74 to the space 71a, the atmosphere in the waterproof member 2 is pressurized, and the width of the slit 5 of the waterproof member 2 is planar wiring. The planar wiring body 1 is easily inserted into the slit 5 by extending the width of the body 1.
[0045]
Step 4: As shown in FIG. 8D, the planar wiring body 1 is inserted while the slit 5 of the waterproofing member 2 is expanded.
[0046]
Step 5: The pressure in the spaces 71a, 72a, 73a is returned to almost atmospheric pressure, and then the waterproof member attaching device 7 is removed.
[0047]
Thus, in the present embodiment, a waterproof structure with sufficient waterproof performance can be easily applied to the planar wiring body by the above five steps.
[0048]
Here, in the step 5, the matters desirable from the viewpoint of facilitating the removal of the waterproof member attaching device 7 are listed. For example, the first box-shaped portion 71 and the introduction portion 73 are preferably structured to sandwich the planar wiring body 1 so that each of the first box-shaped portion 71 and the introduction portion 73 can be divided into two or more. It is desirable to provide a through hole (not shown) for returning the pressure in the space 72a to almost atmospheric pressure.
[0049]
Further, in the waterproof member mounting apparatus 7 illustrated in FIGS. 7 and 8, when the atmosphere in the waterproof member 2 is pressurized to expand the width of the slit 5 to be equal to or larger than the width of the planar wiring body 1, the height of the slit 5 is increased. It is desirable to attach a member that suppresses expansion in the vertical direction to the outside of the waterproof member 2. An example is described below.
[0050]
FIG. 9 shows a waterproof member mounting apparatus for realizing a method for forming a waterproof structure of a planar wiring body according to an embodiment of the present invention, with a member that suppresses expansion of the waterproof member in the height direction of the slit. It is explanatory drawing which shows an example roughly. In FIG. 9, reference numeral 8 denotes a member that suppresses the expansion of the slit 5 of the waterproof member 2 in the height direction (hereinafter referred to as “shaping member”).
[0051]
The shaping member 8 includes, for example, an upper member (hereinafter referred to as “upper member”) 8a and a lower member (hereinafter referred to as “lower member”) 8b with the waterproof member 2 interposed therebetween. In the waterproof member mounting apparatus 7 illustrated in FIG. 1, the upper member 8a is installed on the upper side of the waterproof member 2 and the lower member 8b is the waterproof member before the start of step 3 described above. 2 are respectively arranged on the lower side.
[0052]
With this shaping member 8, it is possible to efficiently expand the width of the slit 5 to be equal to or larger than the width of the planar wiring body 1 when pressurizing the atmosphere in the waterproof member 2.
[0053]
The method for inserting the planar wiring body 1 into the slit 5 after pressurizing the atmosphere in the waterproof member 2 and expanding the width of the slit 5 to be larger than the width of the planar wiring body 1 has been described. The method for forming the waterproof structure of the planar wiring body in the form is not limited to the above. An example is described below.
[0054]
For example, by attaching a member having a shape similar to the shaping member 8 shown in FIG. 9 to the outside of the waterproof member 2 and pressing it in the height direction of the slit 5 of the waterproof member 2, It is also possible to insert the planar wiring body 1 into the slit 5 in a state where the width is expanded to be equal to or larger than the width of the planar wiring body 1.
[0055]
In addition, in order to realize the method for forming the waterproof structure of the planar wiring body according to the present embodiment, the structure of the waterproof member 2 is optimized, the structure of the tip portion of the planar wiring body 1 is optimized, and the like. It is effective. An example is described below.
[0056]
FIG. 10 is a cross-sectional view showing an example of a waterproof member suitable for the method for forming a waterproof structure of a planar wiring body according to an embodiment of the present invention, where (A) is an initial state, and (B) is a planar wiring. The state immediately before the body is inserted, (c) shows the state where the planar wiring body is inserted.
[0057]
In the waterproof member 2 illustrated in FIG. 10, the inner peripheral surface protrusion 23 is formed so as to substantially define only the height of the slit 5 of the waterproof member 2. By forming the inner peripheral surface protrusion 23 in this way, it is possible to prevent unnecessary stress from being applied to a part of the inner peripheral surface protrusion 23 when the planar wiring body 1 is inserted into the slit 5.
[0058]
FIG. 11 is a perspective view showing an example of the shape of the distal end portion of the planar wiring body suitable for the method for forming the waterproof structure of the planar wiring body according to the embodiment of the present invention. In FIG. 11, a chamfered portion 11 is formed at the distal end portion of the planar wiring body 1. In this way, by using the planar wiring body 1 whose tip is processed in advance, when the planar wiring body 1 is inserted into the slit 5 of the waterproof member 2, a part of the inner peripheral surface protrusion 23 is more than necessary. It is possible to prevent stress from being applied.
[0059]
When the planar wiring body 1 having the chamfered portion 11 shown in FIG. 11 is used, the relationship between the width of the slit 5 of the waterproof member 2 and the width of the planar wiring body 1 is flat with respect to the slit 5 of the waterproof member 2. The width of the slit 5 may be narrower than the width of the planar wiring body 1 where the chamfered portion 11 is not formed, and the slit 5 of the waterproof member 2 is planar. When the wiring body 1 is inserted, the width of the slit 5 may be equal to or greater than the width of the portion where the chamfered portion 11 of the planar wiring body is formed. Therefore, depending on the shape of the chamfered portion 11, the planar wiring body 1 can be inserted into the slit 5 without expanding the width of the slit 5.
[0060]
As described above, the present invention can take the above-described embodiments, but these are merely examples, and the embodiments of the present invention can be modified in various ways within the scope of the matters described in the claims. Needless to say, the above-mentioned matters are not limited.
[0061]
【The invention's effect】
As described above, according to the present invention, in the waterproof structure of the planar wiring body in which the waterproof member is attached to the outer periphery of the planar wiring body and the waterproof member is accommodated in the housing, the waterproof member is a rubber-like elastic member. The slit is formed of a material and into which the planar wiring body is inserted, and the waterproof member has a width of the slit in a state where the planar wiring body is not inserted into the slit of the waterproof member. In a state where the width of the planar wiring body is narrower and the height of the slit is higher than the thickness of the planar wiring body, and the waterproof member is accommodated in the housing, Since the waterproof member is in close contact with the outer periphery of the planar wiring body, the waterproof member can be easily attached to the planar wiring body and has a sufficient waterproof performance. That.
[0062]
In the present invention, the height of the internal space of the housing is lower than the height of the waterproof member in a state where the planar wiring body is inserted through the slit, and the cross-sectional area of the internal space of the housing is When it is 80% or more and less than 100% of the cross-sectional area of the waterproof member in a state where the planar wiring body is inserted through the slit, the waterproof structure is further improved in waterproof performance.
[0063]
The method for forming a waterproof structure of a planar wiring body according to the present invention is such that the width of the slit is narrower than the width of the planar wiring body in a state where the planar wiring body is not inserted into the slit of the waterproof member. In addition, when the waterproof member 2 is attached to the planar wiring body 1, the width of the slit 5 of the waterproof member 2 is set so that the height of the slit is higher than the thickness of the planar wiring body. Since the planar wiring body 1 is inserted into the slit 5 in a state where the width is equal to or greater than the width, a waterproof structure having sufficient waterproof performance can be easily applied to the planar wiring body.
[Brief description of the drawings]
FIG. 1 is a side sectional view schematically showing a basic example of a waterproof structure of a planar wiring body according to an embodiment of the present invention.
FIGS. 2A and 2B are diagrams for explaining a process of attaching a waterproof member to a planar wiring body, where FIG. 2A is a front view of the waterproof member, FIG. 2B is a front view of the planar wiring body, and FIG. The front view which shows the state by which the waterproof member was attached to the planar wiring body, (d) is sectional drawing which shows the state by which the waterproof member was attached to the planar wiring body.
FIGS. 3A and 3B are diagrams for explaining a process of housing a waterproof member through which a planar wiring body is inserted in a housing, wherein FIG. 3A is a front view of the waterproof member through which the planar wiring body is inserted; ) Is a front view of the housing, and (C) is a front view showing a state in which the waterproof member is accommodated in the housing.
FIG. 4 is a view showing an example of an application example of a waterproof member used in the embodiment of the present invention, in which (A) is a side view, (B) is a front view, and (C) is a side sectional view.
5 is a side sectional view showing a state in which a planar wiring body is inserted through the waterproof member of FIG. 4;
6 is a side sectional view showing a state in which a waterproof member having a planar wiring body inserted therein as shown in FIG. 5 is housed in a housing.
FIG. 7 is an explanatory view schematically showing an example of a waterproof member mounting apparatus for realizing a method for forming a waterproof structure of a planar wiring body according to an embodiment of the present invention.
8 is a cross-sectional view schematically illustrating a process of forming a waterproof structure on a planar wiring body by the waterproof member mounting device illustrated in FIG. 7, where (a) is an initial state, and (b) is a cross-sectional view. The state immediately before the waterproof member is attached to the planar wiring body, (C) shows the state where the waterproof member is expanded by pressurization, and (D) shows the state where the waterproof member is attached to the planar wiring body.
FIG. 9 shows a waterproof member mounting apparatus for realizing a method for forming a waterproof structure of a planar wiring body according to an embodiment of the present invention, and a member that suppresses expansion of the waterproof member in the height direction of the slit. It is explanatory drawing which shows an example roughly.
FIG. 10 is a cross-sectional view showing an example of a waterproof member suitable for a method for forming a waterproof structure of a planar wiring body according to an embodiment of the present invention, where (A) is an initial state and (B) is a planar wiring. The state immediately before the body is inserted, (c) shows the state where the planar wiring body is inserted.
FIG. 11 is a perspective view showing an example of the shape of the tip end portion of the planar wiring body suitable for the method for forming the waterproof structure of the planar wiring body according to the embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Planar wiring body 2 Waterproof member 2a Chamfer part 3 Housing 4 Internal space 5 Slit 6 Gap 7 Waterproof member mounting apparatus 8 Shaping member 8a Upper member 8b Lower member 11 Chamfer part 21 Main body part 21a Main body part outer surface 21b Main body part inner surface 22 outer peripheral surface protrusion 23 inner peripheral surface protrusion 71 1st box-shaped part 72 2nd box-shaped part 73 introduction part 74 through-hole 75 introduction part inlet_port | entrance 71a, 72a, 73a space

Claims (7)

In the waterproof structure of the planar wiring body in which the waterproof member is attached to the outer periphery of the planar wiring body and the waterproof member is accommodated in the housing,
The waterproof member is formed of a rubber-like elastic material and has a slit through which the planar wiring body is inserted.
The waterproof member is formed such that the width of the slit is narrower than the width of the planar wiring body in a state where the planar wiring body is not inserted into the slit of the waterproof member, and the height of the slit is It is formed to be higher than the thickness of the planar wiring body,
A waterproof structure of a planar wiring body, wherein the waterproof member is in close contact with an outer periphery of the planar wiring body in a state where the waterproof member is accommodated in the housing. 2. The waterproof structure for a planar wiring body according to claim 1, wherein the slit is formed by a plurality of protrusions protruding from an inner surface of the waterproof member. The height of the internal space of the housing is lower than the height of the waterproof member in a state where the planar wiring body is inserted into the slit, and the cross-sectional area of the internal space of the housing is The waterproof structure for a planar wiring body according to claim 1 or 2, wherein the waterproof structure is not less than 80% and less than 100% of a cross-sectional area of the waterproof member in a state where the body is inserted. In the method for forming a waterproof structure of a planar wiring body in which a waterproof member is attached to the outer periphery of the planar wiring body and the waterproof member is accommodated in a housing,
The waterproof member is formed of a rubber-like elastic material and has a slit through which the planar wiring body is inserted,
The waterproof member is formed such that the width of the slit is narrower than the width of the planar wiring body in a state where the planar wiring body is not inserted into the slit of the waterproof member, and the height of the slit is It is formed to be higher than the thickness of the planar wiring body,
The planar wiring body is inserted into the slit in a state where the width of the slit is equal to or larger than the width of the planar wiring body, and then the waterproof member is accommodated in the housing and the waterproof member is inserted into the planar wiring body. A method for forming a waterproof structure of a planar wiring body, wherein the waterproof structure is closely attached to the outer periphery of the flat wiring body. 5. The method for forming a waterproof structure of a planar wiring body according to claim 4, wherein the tip of the planar wiring body is chamfered in advance. When the planar wiring body is inserted into the slit in a state where the width of the slit is equal to or larger than the width of the planar wiring body, the atmosphere in the waterproof member is pressurized to reduce the width of the slit. 5. The method for forming a waterproof structure for a planar wiring body according to claim 4, wherein the waterproofing structure extends beyond the width of the body. A member that suppresses expansion of the slit in the height direction is attached to the outside of the waterproof member when the atmosphere in the waterproof member is pressurized to expand the width of the slit beyond the width of the planar wiring body. The method for forming a waterproof structure of a planar wiring body according to claim 6.

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