JP2013225386A - Waterproof jack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem of causing a contact failure because an adhesive applied for waterproof infiltrates up to the contact part of a contact spring through the contact spring projecting from a rear part of a jack housing.SOLUTION: A waterproof jack comprises: a jack housing 1 including a plug insertion hole 1a, attachment grooves 1b, 1c, 1d, 1e and 1f for respectively fixing positioning of a contact spring 2 therearound and a charging opening 1g for charging the contact spring 2; the contact spring 2 charged from the charging opening 1g to be attached to the attachment grooves 1b, 1c, 1d, 1e and 1f; a cover member 3 for closing the charging opening 1g while allowing terminal parts 2a1, 2b1, 2c1, 2d1 and 2e1 of the contact spring 2 to project; an adhesive 4 for waterproof applied to a recessed part surrounded with an outer surface of the cover member 3 and an inner edge of the charging opening 1g; and circular holes 2a6, 2b6, 2c6 and 2d6 or a rectangle hole 2e6 opened to base parts 2a3, 2b3, 2c3, 2d3 and 2e3 of the contact spring 2.

Description

  The present invention relates to a jack configured on a device side used for transmission / reception of audio signals, video signals, various control signals and other signals, and transmission / reception of electric power in various portable communication devices and other electronic devices, including rainwater and the like It is related with the waterproof jack provided with the waterproof function which prevents that the water | moisture content permeates into an installation object apparatus through this.

Patent Document 1 describes two waterproof jacks.
One of them is a jack body having a plug insertion hole and an opening opening in a direction orthogonal to the plug insertion hole, a contact comprising a tip spring, a ring spring and a sleeve spring disposed in the plug insertion hole, and the tip spring and ring spring. Two terminals which are separated from each other, an insulator which places the contact and the two terminals through the through hole in the plug insertion hole and closes the opening by itself, and a plug which closes each through hole and the opening. It is composed of a liquid or two-component adhesive.

  The second is that, in the above, a packing pressing surface is formed around the insulator, a packing receiving surface is formed in the opening, and when the insulator is fitted into the opening, between the two The other is the same as that one, and a one-component adhesive is applied to the through hole.

  Therefore, according to the one and the two waterproof jacks described in Patent Document 1, the water that has entered the plug insertion hole is, as described above, between the opening and the insulator. The gap is closed with a two-component adhesive, and the gap between the through-hole of the insulator and the contact etc. is closed with a one-component adhesive. Since the gap between the insulator and the insulator is closed with packing, and the gap between the through hole of the insulator and the contact etc. is closed with a one-component adhesive, there is a risk of intrusion to the rear through those parts There is no.

  However, when adhesive is applied to each part from the lower side of the jack housing (below the opening), the adhesive may flow through the contacts and flow into the jack housing. May flow up to the contact portion of the contact, covering all or a part of the contact portion and causing a contact failure.

Japanese Utility Model Publication No. 06-23176 (5th page, FIGS. 5-8, 6th page, 9th page, FIGS. 2-4)

  The present invention has the above-described problems of the prior art, that is, the opening for inserting the contact spring into the jack housing is maintained in the state in which the terminal portion of the contact spring extends rearward. While closing with some cover member, the gap between the contact spring and the through hole of the cover member and the gap between the outer periphery of the cover member and the inner periphery of the opening is filled with an adhesive to waterproof When trying to ensure the property, the adhesive flows through the contact spring to the contact portion at the tip, and avoids contact failure that may occur by covering all or part of the contact portion. The problem to be solved is to provide a waterproof jack that can be used.

According to one aspect of the present invention, there is provided a plug insertion hole for receiving a plug to be inserted, and a contact spring for positioning the contact portion around the plug insertion hole so as to contact a corresponding electrode of the plug inserted into the plug insertion hole. And a jack housing with an inlet for loading the contact spring to attach to the attachment means;
A contact spring that is inserted from the charging port and attached to the mounting means, a contact portion is advanced into the plug insertion hole, and a terminal portion is protruded from the charging port to the outside of the jack housing;
A cover member that closes the loading port while allowing the terminal portion to protrude outside the jack housing;
A waterproofing adhesive applied to all or part of the recess surrounded by the outer surface of the cover member and the inner edge of the loading port;
In the waterproof jack composed of
A waterproof jack in which an adhesive reservoir is formed at a base portion of the contact spring for mounting and fixing to the mounting means.

2 of the present invention is the waterproof jack of 1 of the present invention,
As the adhesive reservoir, a hole opened at the base of the contact spring is adopted.

3 of the present invention is the waterproof jack of 2 of the present invention,
The hole is formed in a circular shape, an elliptical shape, a rectangular shape or a slit shape.

4 of the present invention is the waterproof jack of 1 of the present invention,
As the adhesive reservoir, concave portions that are formed on both sides of the contact spring and are formed on the base portion for fixing to the attachment means are employed.

  According to the waterproof jack of the present invention, when the waterproof adhesive is applied to all or a part of the recess surrounded by the inner edge of the inlet and the outer surface of the cover member, the cover member and the The contact spring enters into the jack housing through the clearance between the contact spring or the clearance between the contact spring and the loading port and along the contact spring, and flows to the contact portion at the tip of the contact spring. It is possible to eliminate the possibility of causing contact failure by covering all or a part of the film with it.

  The adhesive is applied to the inlet for the purpose of preventing moisture that may enter the plug insertion hole from entering the mounting target device incorporating the jack through the inlet. Is surely closed in a watertight state. At this time, if the adhesive is simply applied to the inlet, the adhesive will infiltrate into the jack housing including the plug insertion hole without limitation. In addition, a cover member is arranged to prevent it. However, as described above, there is a slight gap between the cover member and the contact spring, between the contact spring and the loading port, or between the cover member and the loading port. In some cases, the adhesive may penetrate into the jack housing.

  In this case, the amount of the adhesive that penetrates is not large and rarely causes problems, but it flows to the tip side of the contact spring through the base part and the movable piece part, and all or part of the contact part at the tip. In such a case, a problem of contact failure of the contact portion occurs.

  According to the waterproof jack 1 of the present invention, as described above, the adhesive reservoir is formed in the base for attaching the contact spring to the attachment means such as the attachment groove for attaching the contact spring in the jack housing. Even if the adhesive flows in through the spring, most of it will stay in the adhesive reservoir, and even if there is an adhesive that flows further through the surroundings, etc., the amount is small. Therefore, there is almost no possibility of reaching the contact portion. Therefore, it is possible to avoid a problem that a contact failure is caused by the adhesive used for waterproofing.

  Further, as described above, the adhesive reservoir is formed on the base portion used when the contact spring is attached and fixed around the plug insertion hole in the jack housing. It does not affect the operation of the contact part when inserting or removing the plug. In other words, the movable piece that extends from the base of the contact spring to the contact has a large effect on its elasticity and strength when an adhesive pool is formed in the middle, but the base is a fixed part. It is hard to give such an influence. Furthermore, it goes without saying that the structure provided with the adhesive reservoir as described above does not affect the waterproof performance.

  According to the waterproof jack 2 of the present invention, since a hole opened in the base of the contact spring is adopted as the adhesive reservoir, most of the adhesive flowing in from the gap between the cover member and the contact spring is bonded. It flows into the hole that is the agent reservoir and stays there, and the amount that flows further to the contact portion side is not small. Therefore, there is almost no adhesive reaching the contact portion, and all or a part of the contact portion is covered with the adhesive, and there is no problem that a contact failure occurs. Further, according to the waterproof jack 2 of the present invention, a hole is adopted as the adhesive reservoir, and in the process of forming the contact spring, it can be processed at the same time as other components by pressing or the like. Has the advantage of being easy.

  According to the waterproof jack 3 of the present invention, the hole is formed in a circular shape, an elliptical shape, a rectangular shape, or a slit shape, all of which have a simple configuration and are easy to process, and a cover member and a contact spring. It is possible to reliably retain the adhesive flowing in from the gap or the like, and most of the flow to the contact portion side can be prevented. As described above, since the amount of the adhesive flowing beyond this is very small, it hardly reaches the contact portion, and therefore, there is hardly any problem that causes contact failure at the contact portion. In the case of an ellipse, the major axis is formed in a direction perpendicular to the direction from the terminal part of the contact spring to the contact part, and when the square is also rectangular, the long side is similarly contacted from the terminal part of the contact spring. It is appropriate to form in a direction orthogonal to the direction to the part. In the case of a slit shape, the direction is the same.

  According to the waterproof jack 4 of the present invention, as the adhesive reservoir, the concave portions opened on both sides of the contact spring formed on the base for fixing to the mounting means are adopted. Similarly to the case, when the waterproof adhesive is applied to all or a part of the recess surrounded by the inner edge of the loading port and the outer surface of the cover member, it is provided between the cover member and the contact spring. When the adhesive enters the jack housing through a gap or the like and along the contact spring, most of the adhesive stays in the recesses formed on both surfaces of the base of the contact spring. It is possible to eliminate the possibility of causing a contact failure by flowing to the contact portion at the tip and covering all or part of the contact portion with it.

  The contact spring is composed of a very thin conductive elastic metal plate, and it may be difficult to form the recess, but since the amount of adhesive flowing in is small, the effect of retaining even the shallow recess is There is enough. The recesses are formed on both sides so that even if the adhesive flows along any surface, it can be retained in the recesses located on the flowing side. It is not inconvenient if the concave portions on both sides are provided on both sides of the same position or slightly shifted back and forth.

(a) is a cross-sectional plan view showing a state where the contact spring set is to be inserted into the jack housing, and (b) is a state where the cover inlet of the jack housing to which the contact spring set is attached is being closed with a cover member. FIG. 2C is a plan sectional view, and FIG. 3C is a plan sectional view showing a state in which the inlet of the jack housing to which the contact spring set is attached is closed with a cover member and adhesive is applied (plan sectional view of the waterproof jack). The perspective view which shows the state which is going to insert a contact spring set in a jack housing. (a) is a perspective view as seen from above the front side of the jack housing with the contact spring set attached and the inlet closed with a cover member, (b) is a perspective view as seen from above the rear side, and (c) is further from the outside. The perspective view seen from the back side upper part of the waterproof jack which shows the state which gave the adhesive agent to the loading port. (a) is a front view of a contact spring set, (b) is a rear view, (c) is a plan view, (d) is a bottom view, (e) is a left side view, and (f) is a right side view. (a) is a front view of a ring spring, (b) is a rear view, (c) is a plan view, (d) is a bottom view, (e) is a left side view, and (f) is a right side view. (a) is a front view of the second sleeve spring, (b) is a rear view, (c) is a plan view, (d) is a bottom view, (e) is a left side view, and (f) is a right side view. (a) is a front view of the other second sleeve spring, (b) is a rear view, (c) is a plan view, (d) is a bottom view, (e) is a left side view, and (f) is a right side view. . (a) is a front view of the first sleeve spring, (b) is a rear view, (c) is a plan view, (d) is a bottom view, (e) is a left side view, and (f) is a right side view. (a) Front view of tip spring, (b) Rear view, (c) Top view, (d) Bottom view, (e) Left side view, (f) Right side view, (g) Back view The perspective view seen from the top. (a) is a front view (inner side) of the cover member, (b) is a rear view (outer side), (c) is a plan view, (d) is a bottom view, (e) is a left side view, (f) Is a right side view, (g) is a perspective view as viewed from diagonally above the back, and (h) is a cross-sectional view taken along line AA in (a). (a) is a front view of the jack housing, (b) is a rear view, (c) is a perspective view seen from above the front side, and (d) is a perspective view seen from above the rear side. (a) is a front view of a jack housing to which a contact spring set is attached, (b) is a rear view, (c) is a perspective view seen from above the front side, and (d) is a perspective view seen from above the rear side. (a) is a front view of a waterproof jack, (b) is a rear view, (c) is a perspective view of the horizontal section viewed from diagonally upward on the front side, and (d) is a perspective view viewed from diagonally upward on the rear side.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the invention will be described in detail based on examples and with reference to the accompanying drawings.

  As shown in FIGS. 1 (a) to (c), FIG. 3 (c), and FIGS. 13 (a) to (d), the waterproof jack of this embodiment is provided at a predetermined position around the plug insertion hole 1a. A ring spring 2a which is a contact spring 2, two second sleeve springs 2b and 2c, a first sleeve spring 2d and a tip spring 2e, and mounting grooves (mounting means) 1b, 1c, 1d, 1e and 1f, and A jack housing 1 made of an insulating plastic material provided with an inlet 1g of a contact spring 2 for inserting a contact spring into the mounting grooves 1b, 1c, 1d, 1e, 1f, and the inlet 1g A ring spring 2a, two second sleeve springs 2b, 2c, a first sleeve spring 2d and a tip spring 2e, and their contact bars, which are inserted into the mounting grooves 1b, 1c, 1d, 1e and 1f. Cover member 3 that closes the charging port 1g while allowing the terminal portions 2a1, 2b1, 2c1, 2d1, and 2e1 of the terminal 2 to protrude through the charging port 1g, and the outer surface of the cover member 3 The waterproof adhesive 4 applied to a certain range of the recess surrounded by the inner edge of the loading port 1g, the ring spring 2a, the two second sleeve springs 2b and 2c, the first sleeve spring 2d and the tip spring 2e, respectively. It consists of circular holes 2a6, 2b6, 2c6, 2d6 or square holes 2e6 which are adhesive reservoirs opened in the bases 2a3, 2b3, 2c3, 2d3, 2e3.

  As shown in FIGS. 1A to 1C and 13C, the plug insertion hole 1a is a cylindrical space that opens to the front of the jack housing 1 and guides a plug (not shown). The contact portion 2d2 of the first sleeve spring 2d is provided at the foremost portion of the side portion, and the contact portions 2b2 and 2c2 of the two second sleeve springs 2b and 2b are provided further at the rear side. The contact portion 2a2 of the ring spring 2a is opened on the peripheral side portion of the ring spring, and the contact portions 2e2 and 2e2 of the tip spring 2e are opened on the peripheral side portion of the rear end portion so as to advance into the plug insertion hole 1a.

  Further, as shown in FIG. 1 (a), the mounting groove 1b is formed on the upper and lower sides of the rear portion of one side of the plug insertion hole 1a, which is formed on each side of the base 2a3 of the ring spring 2a. The mounting groove 1c is formed on the opposite inner side (from the rear to the middle) across the mounting groove 1b and the plug insertion hole 1a, and the second mounting groove 1c is formed. Responsible for attaching each side of the base portion 2b3 of the sleeve spring 2b in a fitted state, the mounting groove 1d is formed from the rear to the middle on the upper and lower sides of the mounting groove 1b. The second sleeve spring 2c is in charge of attaching each side of the base 2c3 to the fitted state.

  Further, on the opposite side across the mounting groove 1d and the plug insertion hole 1a, as shown in FIG. 1 (a), the mounting groove 1e is formed above and below the intermediate portion and above and below it. Is responsible for attaching each side of the base 2d3 of the first sleeve spring 2d to a fitted state. Further, as shown in FIGS. 2 and 11 (b) and 11 (d), the mounting groove 1f is formed on the lower side of the peripheral side of the plug insertion hole 1a in the figure, which is the tip spring 2e. Responsible for attaching the base 2e3 to the fitted state.

  As shown in FIGS. 2 and 11 (b) and 11 (d), the loading port 1g is a quadrilateral opening in which the entire rear part of the jack housing 1 is opened. The rear ends of 1b, 1c, 1d, 1e, and 1f are open. As shown in FIG. 2, when the set of contact springs 2 is inserted into the jack housing 1 from the loading port 1g with the contact portions 2a2, 2b2, 2c2, 2d2, and 2e2 at the top in the arrangement shown in the drawing, 2a, the bases 2a3, 2b3, 2c3, 2d3, 2e3 of the two second sleeve springs 2b, 2c, the first sleeve spring 2d and the tip spring 2e are fitted in the corresponding mounting grooves 1b, 1c, 1d, 1e, 1f. It comes to match. The set of contact springs 2 can be attached to the attachment grooves 1b, 1c, 1d, 1e, and 1f at a time as described above if held in the positional relationship shown in FIG. Otherwise, each contact spring 2 is inserted into the jack housing 1 one by one from the insertion port 1g and fitted into the corresponding mounting groove 1b (1c, 1d, 1e, 1f).

  As shown in FIGS. 5A to 5F, the ring spring 2a includes a wide base 2a3, a movable piece 2a4 extending forward from the base 2a3, and the tip of the movable piece 2a4. The contact portion 2a2, an extension portion 2a5 extending rearward from the base portion 2a3, and a terminal portion 2a1 formed at the rear end of the extension portion 2a5, and the circular hole 2a6 serving as an adhesive reservoir in the base portion 2a3. Is open. As shown in the figure, the circular hole 2a6 has a diameter of less than 50% of the width of the base 2a3 in this embodiment.

  The second sleeve spring 2b is disposed in the mounting groove 1c on the opposite side across the ring spring 2a and the plug insertion hole 1a, and is arranged in a manner to face the other second sleeve spring 2c, As shown in FIGS. 6A to 6F, as a whole, a wide base portion 2b3, a movable piece portion 2b4 extending forward from the base portion 2b3, and the contact portion 2b2 formed at the tip of the movable piece portion 2b4. And an extension portion 2b5 extending rearward from the base portion 2b3 and a terminal portion 2b1 configured at the rear end of the extension portion 2b5, and the circular hole serving as an adhesive reservoir on the front side of the base portion 2b3 2b6 is open. As shown in the figure, the circular hole 2b6 has a diameter of less than 50% of the width of the base 2b3 in this embodiment.

  The second sleeve spring 2c is attached to the attachment groove 1d at its base portion 2b3 so as to face the second sleeve spring 2b, as shown in FIGS. 7 (a) to 7 (f). The base portion 2c3 which is wide as a whole, the movable piece portion 2c4 extending forward from the base portion 2c3, the contact portion 2c2 formed at the tip of the movable piece portion 2c4, and the extended portion 2c5 extending rearward from the base portion 2c3 And a terminal portion 2c1 formed at the rear end of the extension portion 2c5, and the circular hole 2c6 serving as an adhesive reservoir is opened on the front side of the base portion 2c3. As shown in the figure, the circular hole 2c6 has a diameter of less than 50% of the width of the base 2c3 in this embodiment. The other second sleeve spring 2b is substantially symmetrical, and only the terminal portion 2c1 is different. The terminal portion 2b1 of the other second sleeve spring 2b bends the extension portion 2b5 outward and extends backward, whereas the terminal portion 2c1 of the second sleeve spring 2c bends inward and rearward. It has been extended to.

  The first sleeve spring 2d is a contact spring 2 disposed outside the second sleeve spring 2b. As shown in FIGS. 8A to 8F, the base portion 2d3 having a wide width as a whole and the base portion are provided. A movable piece 2d4 extending forward from 2d3, the contact 2d2 formed at the tip of the movable piece 2d4, an extension 2d5 extending rearward from the base 2d3, and a rear end of the extension 2d5 The circular hole 2d6, which is an adhesive reservoir, is formed on the front side of the base 2d3. As shown in FIGS. 8 (e) and 8 (f), the circular hole db6 has a diameter of less than 50% of the width of the base 2d3 in this embodiment.

  As shown in FIGS. 9A to 9G, the tip spring 2e includes a base portion 2e3 that is wide as a whole, movable piece portions 2e4 and 2e4 raised from both sides of the base portion 2e3, and the movable piece portion 2e4, 2e4 comprises the contact portions 2e2, 2e2 formed inside the tip, an extension portion 2e5 extending rearward from the base portion 2e3, and a terminal portion 2e1 extending in the rear end of the extension portion 2e5. The square hole 2e6, which is an adhesive reservoir, is formed on the rear side of the base 2e3. As shown in FIGS. 9C, 9D, and 9G, the rectangular hole 2e6 is configured to have a width of less than 50% of the width of the base portion 2e3 in this embodiment.

  The circular holes 2a6, 2b6, 2c6, 2d6 or the rectangular holes 2e6, which are the adhesive reservoirs described above, have a diameter or a width as close as possible to the width of the base portions 2a3, 2b3, 2c3, 2d3, 2e3 of the contact spring 2 forming them. Although it is preferable that the adhesive is not allowed to pass through and stays in this part, if the diameter or width is too large, the strength of the bases 2a3, 2b3, 2c3, 2d3, 2e3 is increased. The diameter or width is suitable so as not to bring about a decrease in strength while obtaining a high effect of being slightly less than 50%.

  In this embodiment, the waterproof jack provided with the above five types of contact springs 2 is applied, but the invention is not limited to this at all. A waterproof jack with contact springs 2 of completely different types or a completely different number of waterproof jacks is not inconvenient.

  The cover member 3 has an inlet opening that opens at the rear portion of the jack housing 1 while allowing the terminal portions 2a1, 2b1, 2c1, 2d1, and 2e1 of the contact spring 2 disposed in the jack housing 1 to protrude rearward. It is an insulating plate-like plastic member that closes 1 g. In particular, as shown in FIGS. 10 (a) to 10 (h), this is a substantially horizontally long insulating plate-like member slightly smaller than the loading port 1g, and has a recess in the front (inner) center. When viewed from the back side (outer side), the projection 3f swells in the center.

  As shown in FIG. 10 (a), when viewed from the front side, the extension 2c5 of the second sleeve spring 2c corresponds to the loading port 1g from the vicinity of the center of the left side of the cover member 3 in the height direction. A notch 3a for passing through between the side edges is formed, and a slit 3b for allowing the extension 2a5 of the ring spring 2a to pass through is formed from the vicinity of the central portion in the height direction to the lowermost portion on the right side. It is. The width of the notch 3a is slightly larger than the thickness of the extension 2c5, and the width of the slit 3b is slightly larger than the thickness of the extension 2a5. The height of each of the corresponding extensions 2c5 and 2a5 is slightly greater than the width.

  In addition, a notch 3c is formed at the lowermost center of the cover member 3 so that the extension 2e5 of the tip spring 2e passes from between the lower edge of the loading port 1g. The width of the notch 3c is set to be slightly larger than the width of the extension 2e5, and the height of the notch 3c is slightly larger than the thickness of the extension 2e5.

  Further, on the right side of the cover member 3, a notch 3 d for allowing the extension portion 2 d 5 of the first sleeve spring 2 d to pass from between the corresponding side edge of the loading inlet 1 g is formed from the vicinity of the center in the height direction to the lower side. A slit 3e for allowing the extension portion 2b5 of the second sleeve spring 2b to pass through is formed from the vicinity of the central portion in the height direction to the lowermost portion on the left side. The width of the notch 3d is slightly larger than the thickness of the extension 2d5, and the width of the slit 3e is slightly larger than the thickness of the extension 2b5. Each height slightly exceeds the width of the corresponding extension 2d5, 2b5.

  Therefore, according to the waterproof jack of this embodiment, when the predetermined contact spring 2 is set in the jack housing 1, the charging port 1g is closed by the cover member 3, and the adhesive 4 is applied from the back for waterproofing. Even if the adhesive 4 flows into the jack housing 1 from the gap between the contact spring 2 and the cover member 3, the contact spring 2 has the bases 2a3, 2b3, 2c3, 2d3, 2e3. Since the circular holes 2a6, 2b6, 2c6, 2d6 or the square holes 2e6 are opened and these function as an adhesive reservoir, most of the adhesive 4 is the circular holes 2a6, 2b6, 2c6, 2d6 or the It stays in the square hole 2e6 and reaches the respective contact portions 2a2, 2b2, 2c2, 2d2, and 2e2, and covers them to cause poor contact. There is little to generate the title. On the other hand, it goes without saying that the waterproof jack of this embodiment can maintain a sufficiently high waterproof property.

  As shown in FIGS. 1 (a) and 2, the jack housing 1 includes a ring spring 2a, which is a contact spring 2, from the rear loading port 1g, two second sleeve springs 2b, 2c, a first sleeve spring 2d, and The tip springs 2e are inserted toward the mounting grooves 1b, 1c, 1d, 1e, and 1f that are positioned and fixed around the plug insertion holes 1a, respectively. The positional relationship is fixed by some means, or is inserted individually. Naturally, both sides of each of the base portions 2a3, 2b3, 2c3, and 2d3 enter the upper and lower mounting grooves 1b, 1c, 1d, and 1e, and the base portion 2e3 enters the mounting groove 1f.

  FIG. 1B shows the above-described ring spring 2a, two second sleeve springs 2b, 2c, first sleeve spring 2d, and tip springs 2e at the bases 2a3, 2b3, 2c3, 2d3 on the mounting grooves 1b, 1c, respectively. 1d, 1e, 2e3, and 1f are properly fitted around the plug insertion hole 1a, and the respective contact portions 2a2, 2b2, 2c2, 2d2, 2e2, and 2e2 are respectively connected to the plug insertion holes 1a. The state which has advanced to the predetermined position is shown. FIGS. 12B and 12D show the state of the loading port 1g in the above state.

  Thereafter, as shown in FIGS. 1 (b) and 1 (c), the cover member 3 is pushed into the loading port 1g of the jack housing 1 with the front side thereof inward, as shown in FIG. 3 (b). Then, the charging port 1g is closed. Needless to say, the ring spring 2a, the two second sleeve springs 2b and 2c, the first sleeve spring 2d and the extension portion 2a5 of the tip spring 2e are seen from the back side of the cover member 3, as shown in FIG. Passes through the right slit 3b, the extension 2b5 passes through the left slit 3e, the extension 2c5 extends between the right cutout 3a and the side edge of the loading port 1g facing, and the extension 2d5 extends through the left cutout 3d. The extension 2e5 passes between the lower notch 3c and the lower edge of the inlet 1g, respectively, and the rear end terminals 2a1, 2b1, 2c1,. 2d1 and 2e1 are exposed to the outside.

  Next, as shown in FIGS. 1 (c), 3 (c) and FIGS. 13 (b) to (d), the cover member 3 protrudes inside the loading port 1 g and behind the cover member 3. The adhesive 4 is filled until it matches the outer surface of the portion 3f, and the gap between the cover member 3 and each contact spring 2, the gap between the inlet 1g and the cover member 3, and other gaps are bonded. Fill with agent 4 to ensure watertightness.

  At this time, the adhesive 4 may flow into the jack housing 1 from the gap between the contact spring 2 and the cover member 3 or other gaps. As described above, it flows through the contact spring 2. In this case, if it flows into the tip end side, the adhesive 4 may cover the contact portions 2a2, 2b2, 2c2, 2d2, 2e2, and 2e2, which may cause poor contact. However, in the waterproof jack of this embodiment, the adhesive 4 flowing in along the ring spring 2a, the two second sleeve springs 2b and 2c, the first sleeve spring 2d and the extension 2a5 of the tip spring 2e is in the middle of inflow. This is because most of them come into contact with the circular holes 2a6, 2b6, 2c6, 2d6 or the square holes 2e6 formed in the base portions 2a3, 2b3, 2c3, 2d3, 2e3, and stay there.

  Some adhesive 4 may pass through both sides of the circular holes 2a6, 2b6, 2c6, 2d6 or the square holes 2e6 and further flow into the movable pieces 2a4, 2b4, 2c4, 2d4, 2e4. However, since the amount of the adhesive 4 is small and the adhesive 4 spreads over the surfaces, the contact portions 2a2, 2b2, 2c2, 2d2, 2e2, and 2e2 at the front end are hardly reached. Contact failure due to the coating of the agent 4 cannot occur.

  The waterproof jack structure of the present invention can be effectively used in the field of manufacturing various electronic devices.

1 Jack housing 1a Plug insertion hole 1b, 1c, 1d, 1e, 1f Mounting groove (mounting means)
1g loading port 2 contact spring 2a ring spring 2a1 terminal 2a2 contact 2a3 base 2a4 movable piece 2a5 extension 2a6 circular hole (adhesive reservoir)
2b Second sleeve spring 2b1 Terminal 2b2 Contact 2b3 Base 2b4 Movable piece 2b5 Extension 2b6 Circular hole (adhesive reservoir)
2c Second sleeve spring 2c1 Terminal portion 2c2 Contact portion 2c3 Base portion 2c4 Movable piece portion 2c5 Extension portion 2c6 Circular hole (adhesive reservoir)
2d 1st sleeve spring 2d1 terminal part 2d2 contact part 2d3 base part 2d4 movable piece part 2d5 extension part 2d6 circular hole (adhesive reservoir)
2e Tip spring 2e1 Terminal 2e2 Contact 2e3 Base 2e4 Movable piece 2e5 Extension 2e6 Square hole (adhesive reservoir)
3 Cover member 3a Notch 3b Slit 3c Notch 3d Notch 3e Slit 3f Protruding part 4 Adhesive

Claims (4)

A plug insertion hole for receiving a plug to be inserted, a contact spring mounting means for positioning the contact portion around the plug insertion hole so as to contact a corresponding electrode of the plug inserted into the plug insertion hole, and the contact spring A jack housing with a loading port for loading to the mounting means;
A contact spring that is inserted from the charging port and attached to the mounting means, a contact portion is advanced into the plug insertion hole, and a terminal portion is protruded from the charging port to the outside of the jack housing;
A cover member that closes the loading port while allowing the terminal portion to protrude outside the jack housing;
A waterproofing adhesive applied to all or part of the recess surrounded by the outer surface of the cover member and the inner edge of the loading port;
In the waterproof jack composed of
A waterproof jack in which an adhesive reservoir is formed in a base portion of the contact spring for mounting and fixing to the mounting means.   The waterproof jack according to claim 1, wherein a hole opened in the base of the contact spring is used as the adhesive reservoir. 3 of the present invention is the waterproof jack of 2 of the present invention,
The waterproof jack according to claim 2, wherein the hole is formed in a circular, elliptical, rectangular or slit shape.   The waterproof jack according to claim 1, wherein the adhesive reservoir is formed with recesses formed on both sides of the contact spring, which are formed on a base for mounting and fixing to the mounting means.

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