JP5348680B2 - Waterproof structure and electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow a waterproof member to be inserted easily in a slot. <P>SOLUTION: A waterproof structure is provided with: a waterproof member 7 formed integrally around a first member 1; a slot 21 which is formed around a second member 2 joined to the first member 1 and in which the waterproof member 7 is inserted; a reinforcing member 8 buried in the waterproof member 7; and a shock absorbing portion 71 disposed between the first member 1 and the reinforcing member 8. The reinforcing member 8 is buried in the waterproof member 7 with the shock absorbing portion 71 formed as a clearance against the first member 1, and is provided as a thin plate set along the direction of insertion into the slot 21. The first and second members 1 and 2 combine to make up a case. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a waterproof structure of a type in which a waterproof member is inserted into a groove portion, and an electronic apparatus including a casing with the waterproof structure.

Patent Document 1 discloses a waterproof packing in which a metal wire is embedded in the center of a rubber ring having an approximately elliptical cross section. This waterproof packing is designed to waterproof the electronic equipment by fitting it into the annular groove of the back case and pressing the front case. Since the metal packing is embedded, the waterproof packing is difficult to deform. Workability is improved compared to mounting the waterproof packing in the annular groove.
Japanese Utility Model Publication No. 5-59885

  However, the waterproof packing of Patent Document 1 cannot be easily attached to the annular groove when the processing accuracy of the waterproof packing and the annular groove is not good. That is, it is necessary to install the waterproof packing while bending it so as to fit the annular groove. If the tolerance is large, it takes more time than installing the normal waterproof packing.

  The subject of this invention is enabling it to insert a waterproof member easily with respect to a groove part.

To solve the above problems, the invention according to claim 1, and Tei Ru waterproof member said first member and is formed integrally provided around the first member, to coalesce the first member A groove portion provided around the second member and inserted into the waterproof member , and extending in a direction along the insertion direction of the waterproof member into the groove portion, with the tip protruding from the waterproof member wherein a reinforcing member Ru embedded in the waterproof member Tei, characterized a waterproof structure and a cushioning portion having elasticity is provided between the reinforcing member and the first member in.

According to a second aspect of the invention, a waterproof structure according to claim 1, wherein the reinforcing member is embedded in said waterproofing member relative to the first member provided with the buffer portion by the clearance, And it is a thin plate-shaped member along the insertion direction with respect to the said groove part, It is characterized by the above-mentioned.

  A third aspect of the present invention is the waterproof structure according to the first aspect, wherein the first member and the second member are combined to form a casing.

The invention according to claim 4, a waterproof structure according to claim 1, wherein the reinforcing member is characterized Tei Rukoto provided over the entire periphery of the waterproof member.

  Invention of Claim 5 is the waterproof structure of Claim 4, Comprising: The said reinforcement member is a continuous-shaped molded article over the perimeter of the said waterproof member, The part is divided | segmented and length adjustment is carried out It has a possible adjustment part.

The invention according to claim 6 is the waterproof structure according to claim 1, characterized in that the waterproof member is provided to extend at the end of the first member and has an L-shaped cross section. It is characterized by that.

Invention of claim 7, a waterproof structure according to claim 6, wherein the reinforcing member is characterized that you have to pass through the L-shaped cross section of the waterproof member.

  According to an eighth aspect of the present invention, there is provided an electronic apparatus including the housing having the waterproof structure according to any one of the first to seventh aspects.

  According to the present invention, the waterproof member can be easily inserted into the groove portion.

Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a mobile phone as a configuration of an embodiment of an electronic apparatus to which the present invention is applied. 1 is an upper case, 2 is a lower case, 3 is an operation unit, 4 is a display unit, and 5 is a transmission unit. , 6 is a receiver. In the illustrated example, the casing is a case in which an upper case 1 and a lower case 2 are screwed through a surrounding waterproof structure, and an operation unit 3, a display unit 4, a transmitter unit 5, a receiver unit 6 and the like are provided on the upper case 1. Is provided.

  2 is a view of the upper case 1 of the housing of FIG. 1 from the inner surface side, 11 is a screwing portion, 13 is an operation key sheet, 14 is a display window, 15 is a small window for transmitting, and 16 is for receiving a call. It is a small window. As shown in the figure, the upper case 1 is formed with screwing portions 11 at the four corners and the middle portion around the upper case 1, and inside the operation key sheet 13 of the operation unit 3, the display window 14 of the display unit 4, The transmission window 15 of the transmission section 5 and the reception window 16 of the reception section 6 are each attached with a waterproof seal structure.

  A waterproof member 7 made of an elastic seal material such as rubber is integrally formed around the inner surface of the upper case 1 as shown in FIG. The waterproof member 7 is located inside the screwing portion 11. Further, a reinforcing member 8 made of metal, hard resin material or the like is embedded in the waterproof member 7 over the entire circumference. The reinforcing member 8 protrudes slightly from the waterproof member 7 uniformly.

(Embodiment 1)
FIG. 4 shows the waterproof structure of the first embodiment, in which 21 is a groove and 71 is a buffer. That is, a groove portion 21 into which the waterproof member 7 of the upper case 1 is inserted is formed on the inner peripheral surface of the lower case 2.

  Further, as shown in the figure, the waterproof member 7 has a thin plate-like reinforcing member 8 parallel to the insertion direction of the groove portion 21 of the lower case 2 and a buffer portion 71 with a slight clearance with respect to the inner surface of the upper case 1. It is embedded in one piece by insert molding. The thin plate-like reinforcing member 8 has its tip slightly projecting uniformly from the waterproofing member 7.

  When such a waterproof member 7 is inserted into the groove portion 21, the thin plate-like reinforcing member 8 parallel to the insertion direction is inserted with the buffer portion 71 provided with a slight clearance. Thus, it can be easily inserted as shown in FIG. 4 (a) while having a lateral followability indicated by an arrow. That is, as shown in FIG. 4B, when the waterproof member 7 is inserted into the groove portion 21, even if the positions of the groove portion 21 and the waterproof member 7 are shifted due to tolerance, the buffer portion 71 is bent and the waterproof member 7 is separated into the groove 21.

  As described above, according to the waterproof structure of the first embodiment, the waterproof member 7 on the entire periphery of the upper case 1 can be easily inserted into the groove portion 21 on the entire periphery of the lower case 2 in the casing of the mobile phone. That is, even if there is a tolerance, the waterproof member 7 is deformed by the buffer portion 71 even if there is a slight difference, and it is not necessary to rework the waterproof member 7 or the like.

  And since the thin-plate-shaped reinforcement member 8 parallel to the insertion direction to the groove part 21 is inserted in the waterproof member 7 with the front-end | tip slightly protruded, the deformation | transformation to the insertion direction with respect to the groove part 21 of the waterproof member 7 is also suppressed. For example, local wrinkles can be suppressed and leakage can be prevented. Therefore, good waterproof performance can be obtained.

Next, FIG. 5 shows an example of a method for forming the waterproof member 7 and the reinforcing member 8.
First, the parts are assembled into the mold. That is, as shown in FIG. 5A, the thin plate-shaped reinforcing member 8 is set in the cavity 101 of the molded lower mold 100, and the upper case 1 is placed on the molded lower mold 100. At this time, a slight clearance is secured between the upper end of the reinforcing member 8 and the upper case 1. In the figure, reference numeral 200 denotes an upper mold.

  Then close the mold. That is, as shown in FIG. 5 (b), the molding upper mold 200 is overlaid on the upper case 1 on the molding lower mold 100.

  Then, the waterproof member 7 is formed. That is, as shown in FIG. 5C, in the mold closed state, the waterproof member in which the elastic member (elastic seal material) is filled in the cavity 101 of the molded lower mold 100 and the thin plate-like reinforcing member 8 is inserted. 7 is molded.

  Then open the mold. That is, as shown in FIG. 5 (d), the upper mold 200 is raised upward from the upper case 1 on the lower mold 100.

  Then, the parts are taken out. That is, as shown in FIG.5 (e), the upper case 1 which integrally has the waterproof member 7 in which the thin-plate-shaped reinforcement member 8 was inserted is taken out.

  Finally, an excessive protruding portion of the reinforcing member 8 is cut off. That is, as shown in FIG. 5 (f), an excessive protruding portion of the reinforcing member 8 protruding from the tip of the waterproof member 7 is cut off.

  Although the case of insert molding has been described above, the molding method may be two-color molding or three-color molding.

FIG. 6 shows an example of forming the reinforcing member 8. When the shape of the groove portion 21 for waterproofing is complicated, it is expected that it becomes difficult to insert the reinforcing member 8 into the mold.
For this reason, as shown in the figure, the reinforcing member 8 formed with the bent portion 81 to be avoided inside the screwing portion 11 in accordance with the shape of the groove portion 21 is formed in advance.

FIG. 7 shows an example of the configuration of the adjusting portion of the reinforcing member 8, and when an adjustment allowance is necessary in the circumferential direction of the reinforcing member 8 for reasons such as thermal expansion, a length adjusting portion obtained by dividing a part thereof. Is provided.
That is, as shown in FIG. 7A, the length adjusting portion 82 obtained by dividing a part of the reinforcing member 8 has end piece portions 83 and 84 that are vertically overlapped in the insertion direction into the groove portion 21 at both ends thereof. Formed.

Alternatively, as shown in FIG. 7 (b), the length adjusting portion 85 obtained by dividing a part of the reinforcing member 8 is inserted into each other in the insertion direction into the groove portion 21 at both ends thereof, and the central ends overlapping vertically. A piece 86 and a groove 87 are formed.
As described above, the length adjusting portions 82 and 85 are deformed with respect to the end piece portions 83 and 84 or the central end piece portion 86 and the groove portion 87 that overlap vertically in the insertion direction into the groove portion 21, that is, the insertion direction. The shape should be small.

(Embodiment 2)
FIG. 8 shows a waterproof structure according to the second embodiment. As shown in the drawing, a waterproof member 7 having an L-shaped cross section, which is extended to the peripheral end portion of the upper case 1 and provided with a buffer portion 71 by clearance, is integrally formed. In addition, a thin plate-like reinforcing member 8 penetrating the waterproof member 7 having an L-shaped cross section is insert-molded.

  Even if such a waterproof member 7 having an L-shaped cross section is provided and a thin plate-like reinforcing member 8 is penetrated through the waterproof member 7 having an L-shaped cross section, the same effects as those of the first embodiment described above can be obtained. can get.

(Modification)
In the above embodiment, the cellular phone is used. However, the present invention is not limited to this, and includes a waterproof case structure such as a camera, a PDA, a notebook computer, a wearable computer, a calculator, and an electronic dictionary. Can be used for all electronic devices.
The reinforcing member may have a divided structure.
Further, the buffer portion may be integrally formed of a member different from the waterproof member.
Furthermore, the material and shape of the waterproof member and the reinforcing member, the structure of the adjusting portion, and the like are arbitrary, and it is needless to say that specific detailed structures and the like can be appropriately changed.

1 is a perspective view showing a configuration of an embodiment of an electronic apparatus to which the present invention is applied, showing a mobile phone. It is the perspective view which looked at the upper case of the housing | casing of FIG. 1 from the inner surface side. It is an enlarged view of the arrow A part of FIG. It is the vertical side view which showed the waterproof structure of Embodiment 1, and is the figure (a) which shows an insertion state, and the figure (b) which shows the middle of insertion. 1 shows an example of a method for forming a waterproof member and a reinforcing member. FIG. 1A shows a process of incorporating parts into a mold, FIG. 2B shows a mold closing process, FIG. 3C shows a molding process of the waterproof member, It is a figure (d) which shows a mold opening process, a figure (e) which shows a parts taking-out process, and a figure (f) which shows a cutting process of a reinforcing member. It is a perspective view which shows the example of forming of a reinforcement member. It is a side view (a) and (b) which show the example of composition of the adjustment part of a reinforcement member. It is the vertical side view which showed the waterproof structure of Embodiment 2. FIG.

Explanation of symbols

1 First member (upper case)
2 Second member (lower case)
21 Groove part 7 Waterproof member 71 Buffer part 8 Reinforcement member 82 Adjustment part 85 Adjustment part

Claims (8)

A waterproof member Ru Tei said first member and is formed integrally provided around the first member,
And the groove second of the waterproof member is provided around the member to be united to the first member is inserted,
Is formed to extend in the direction along the direction of insertion into the groove of the waterproof member, a reinforcing member distal from said waterproof member is Ru Tei buried in the waterproof member so as to protrude,
Waterproof structure of a buffer unit, characterized in that it comprises a having provided elastic between the first member and the reinforcing member. The reinforcing member is a thin plate-like member that is embedded in the waterproof member with the buffer portion provided by clearance with respect to the first member, and that extends in the insertion direction with respect to the groove portion. The waterproof structure according to claim 1.   The waterproof structure according to claim 1, wherein the first member and the second member are a case that is combined to form a housing. Waterproof structure according to claim 1 wherein the reinforcing member, characterized by Tei Rukoto provided over the entire periphery of the waterproof member.   5. The waterproof structure according to claim 4, wherein the reinforcing member is a continuous-shaped molded product extending over the entire circumference of the waterproof member, and has an adjustment portion whose length can be adjusted by dividing a part thereof. The waterproof member is a waterproof structure according to claim 1, characterized in that it na the first member end portion extending to and an L-shaped cross section provided in the. The reinforcing member has a waterproof structure according to claim 6, characterized that you have to pass through the L-shaped cross section of the waterproof member.   An electronic apparatus comprising the housing having the waterproof structure according to claim 1.

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