JP2007103253A - Table tap - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a table tap capable of preventing leakage of water or the like into a case from outside. <P>SOLUTION: A bushing 3 is composed of a cylindrical protection part 30 protecting a power cord 2 protruded from the case 1, and a holding part 31 held on the case 1 at its inside, and provided with one or plurality of protrusion parts 32 facing the power cord 2 at an inner wall of the holding part 31, contacting the power cord 2 at least when the power cord 2 is bent. By the above, the bushing 3 is prevented from deformation caused by the bending of the power cord 2, and made so as not to generate any gap between the bushing 3 and the case 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a table tap.

A conventional table tap is shown in FIG. 4 (Patent Document 1). This table tap includes an outer shell 40 made of a synthetic resin cover 41 and a body 42, and the outer shell 40 is formed in an elongated box having a substantially rectangular parallelepiped shape. One surface along the longitudinal direction (the upper surface in FIG. 4). And a plug blade insertion hole 43 for inserting the plug blade of the plug P is provided on one end surface in the longitudinal direction. A terminal of a power cord 44 having a plug (not shown) at the tip is introduced into the outer shell 40 through a bushing 45 attached to the other end side in the longitudinal direction of the outer shell 40, and Power is supplied by connecting to a blade receiver (not shown) provided facing the plug blade insertion hole 43 and receiving the plug blade of the plug P. The bushing 45 covers the outer periphery of the power cord 44 drawn out from the outer shell 40 and prevents disconnection due to the bending of the power cord 44. One end of the bushing 45 has a cylindrical shape and the other end is fixed to the outer shell 40. Therefore, it is smoothly thinned from the other end side to the one end side. An opening for introducing the power cord 44 is formed on the other end side in the longitudinal direction of the outer shell 40, and the bushing 45 is covered by the opening. On both side surfaces of the other end of the bushing 45 in the vertical direction in FIG. 4, semicircular arc-shaped protrusions (not shown) protrude in the both directions, and the protrusions are on the other end side in the longitudinal direction of the outer shell 40. The bushing 45 is fixed to the outer shell 40 by being locked to the inner periphery of the opening.
JP 2004-221033 A

  However, in the table tap of the conventional example, when the power cord 44 is bent, the bushing 45 is deformed or twisted to create a gap between the outer shell 40 and the bushing 45, and as a result, water or the like is discharged from the outer shell 40. There was a risk of malfunction due to intrusion inside. In addition, even when the power cord 44 is not bent, a gap is generated between the power cord 44 and the bushing 45 to allow entry of water or the like from the outside, resulting in a problem as described above. there were.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a table tap that can prevent water and the like from entering the inside of the vessel from the outside.

  In order to achieve the above object, the invention of claim 1 is characterized in that an external body is provided through a container body in which one or a plurality of blade receivers are housed, and an insertion hole that is electrically connected to the blade receiver in the container body and opened in the container body. A table tap provided with a power cord that is pulled out and has a plug at one end, and a bushing that is externally attached to the power cord and held by the body, the bushing protruding from the body and protecting the power cord And one or a plurality of protrusions that abut against the power cord when the power cord is bent at least when facing the power cord on the inner wall of the retaining portion. It is provided with.

  According to a second aspect of the present invention, in the first aspect of the present invention, the bushing includes one or a plurality of valves that abut the entire periphery of the power cord on the inner wall of the protection portion.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the bushing is provided with a flange over the entire circumference on the outer side of the holding portion, and the vessel body has a groove in which the flange is fitted in the vicinity of the insertion hole. Is in contact with the peripheral wall of the insertion hole over the entire circumference.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the bushing includes one or more fitting pieces projecting outside the holding portion, and the body is fitted on the inner wall near the insertion hole. It is characterized by having a fitting portion that fits with the combined piece.

  According to the first aspect of the present invention, since the inner wall of the holding portion is provided with one or a plurality of protrusions facing the power cord when facing the power cord and bending at least when the power cord is bent, the bushing is caused by the bending of the power cord. Deformation can be prevented, and a gap can be prevented from being generated between the body and the bushing due to the deformation, and thus water and the like can be prevented from entering from the gap.

  According to the second aspect of the present invention, the bushing includes one or more valves that are in contact with the peripheral edge of the power cord on the inner wall of the protective portion over the entire circumference. Can be prevented from entering.

  According to the invention of claim 3, the bushing is provided with a flange over the entire circumference on the outside of the holding portion, the container has a groove into which the flange is fitted in the vicinity of the insertion hole, and the flange extends over the entire circumference of the peripheral wall of the insertion hole. Since the contact is made, intrusion of water or the like can be prevented by the flange even when a gap is generated between the container and the bushing.

  According to the invention of claim 4, the bushing is provided with one or more fitting pieces projecting to the outside of the holding part, and the vessel body is provided with a fitting part that fits with the fitting piece on the inner wall near the insertion hole. Therefore, it is possible to prevent the bushing from being deformed or twisted due to the bending of the power cord, and thus to prevent a gap from being generated between the body and the bushing, and to prevent entry of water or the like.

  Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 3, the table tap of the present embodiment includes a container body 1 in which three sets of blade receivers (not shown) that receive a pair of plug blades of a plug (not shown) are stored. A power cord 2 that is electrically connected to the blade receiver in the body 1 and is drawn out through an insertion hole 10 that is open at one end in the longitudinal direction (left side in FIG. 3) of the body 1 and has a plug at one end; And a bushing 3 that is externally attached to the power cord 2 and is held by the container 1 in the vicinity of the insertion hole 10.

  The container 1 includes a cover 11 and a body 12 made of synthetic resin, and is formed in an elongated box having a substantially rectangular parallelepiped shape. As shown in FIGS. 2A and 2C, the cover 11 and the body 12 are each formed in a substantially rectangular box having an opening on one surface, and one end in the longitudinal direction (FIGS. 2A and 2B). The upper side in c) is formed in a semicircular arc shape. In addition, the semicircular arc ends of the cover 11 and the body 12 are provided with cutouts in a substantially rectangular shape, and these cutouts constitute the body 1 by attaching the cover 11 to the body 12. A substantially rectangular insertion hole 10 is formed.

  Furthermore, the cover 11 and the body 12 are each provided with a wall 17 that is curved in parallel with the semicircular arc-shaped end portion with a predetermined interval. As shown in FIGS. 2B and 2D, each of the walls 17 is formed in a substantially U-shape integrally with the inner wall of the container 1 and has a plurality of concave shapes formed on the inner side. The fitting part 14 is provided and it fits with the fitting piece 35 mentioned later. Further, a groove 13 is provided in both the cover 11 and the body 12 between the end portion of the semicircular arc shape and the wall 17, and a flange 34 described later is fitted therein.

  The body 1 is attached to the body 12 so that the peripheral edges of the cover 11 are in contact with each other, and screw insertion holes 16a respectively formed in the axial direction of three columnar ribs 16 provided on the inner bottom surface of the body 12. An assembly screw (not shown) inserted from the back side of the body 12 is screwed into three screw holes 15 provided in the cover 11.

  The upper surface of the container body 1 in FIG. 3 is provided with two pairs of rectangular blade insertion holes 1a into which the plug blades of the plug are inserted. Also on the right side in FIG. 3, although not shown, one set of plug blade insertion holes 1a is provided. A blade receiver is provided inside the container body 1 at a position facing each plug blade insertion hole 1a, and is electrically connected to a terminal of the power cord 2 having a plug at one end. The power cord 2 is introduced into the interior of the vessel 1 through a substantially rectangular insertion hole 10 provided at one end in the longitudinal direction of the vessel 1, and is externally inserted into the power cord 2 in the vicinity of the insertion hole 10. A bushing 3 is attached to the body 1.

  As shown in FIG. 1, the bushing 3 is made of a resin material, covers the outer periphery of the power cord 2 drawn from the container 1, and prevents the disconnection due to the bending of the power cord 2, and the insertion It comprises a holding portion 31 for holding the bushing 3 in the vessel 1 inside the vessel 1 in the vicinity of the hole 10.

  The protection part 30 is formed in an elongated cylindrical shape, and an opening 30a is formed in a substantially elliptical shape in order to introduce the power cord 2 at one end and the other end in the longitudinal direction. On the inner wall of the protection part 30, two valves 33 that are formed integrally with the protection part 30 and that contact the peripheral edge of the power cord 2 over the entire circumference are provided at a certain interval, as shown in FIG. Also on the inner wall of the upper opening 30a, although not shown, two valves are similarly provided at regular intervals. When the power cord 2 is inserted into the protection unit 30, these valves 33 are deformed according to the cord diameter of the power cord 2 by being pushed by the power cord 2, and are in close contact with the periphery of the power cord 2. It has become.

  As shown in FIG. 1A, the holding portion 31 includes a lid portion 36 that closes the insertion hole 10 of the container 1, a flange 34 provided on the outer periphery of the holding portion 31, and a bushing 3 inside the vessel 1. It consists of a fixing part 37 that is fixed to the container 1, and the central part of any part is opened in a substantially elliptical shape for introducing the power cord 2. The lid portion 36 is curved so as to be parallel to a semicircular arc at one end in the longitudinal direction of the vessel body 1 and is formed integrally with the end portion of the protection portion 30 on the vessel body 1 side. The insertion hole 10 is closed by contacting over the circumference. The flange 34 is integrally formed along the lid 36 on the lower side of the lid 36 in FIG. 1A, and projects outward from the lid 36 over the entire circumference. The flange 34 is brought into contact with the back side of the wall surface forming the periphery of the insertion hole 10 of the container body 1 by fitting into the groove 13 of the container body 1.

  The fixing portion 37 is formed in a substantially rectangular parallelepiped shape on the lower side of the flange 34 in FIG. 1A, and the upper surface is curved so as to contact the flange 34. On the inner wall of the fixed portion 37, two convex protrusions 32 that are formed integrally with the fixed portion 37 and face each other with the power cord 2 interposed therebetween are provided. These protrusions 32 are formed so as to come into contact with the periphery of the power cord 2. The protruding portion 32 may be formed so as to contact at least the peripheral edge of the power cord 2 when the power cord 2 is bent, and does not need to be contacted even when not bent as in the present embodiment.

  Further, on the outer periphery of the fixing portion 37, a plurality of convex fitting pieces 35 protruding outward from the fixing portion 37 are formed at intervals below the entire periphery of the lower portion of the flange 34 in FIG. These fitting pieces 35 are adapted to be fitted into fitting portions 14 provided in the vicinity of the insertion hole 10 inside the container body 1 (see FIG. 2 (e)).

  As described above, the valve 33 that contacts the entire periphery of the power cord 2 is provided on the inner wall of the protective portion 30 and the opening 30a, so that water or the like enters the bushing 3 through the power cord 2. In addition, since the valve 33 is in close contact with the peripheral edge of the power cord 2, water or the like can be prevented from entering the inside of the container 1. In addition, since the protruding portion 32 facing the power cord 2 is provided on the inner wall of the fixed portion 37, the protrusion 32 comes into contact with the power cord 2 when the power cord 2 is bent to prevent the bushing 3 from being deformed. Therefore, it is possible to prevent a gap from being generated between the lid portion 36 and the container body 1 due to the deformation, and thus prevent water or the like from entering the interior of the container body 1.

  Further, a flange 34 is provided outside the holding portion 31 over the entire circumference of the holding portion 31, and the flange 34 and the groove 13 provided on the back side of the wall surface of the vessel body 1 surrounding the insertion hole 10 are fitted. Therefore, even if a gap occurs between the container 1 and the lid 36 and water or the like enters, the flange 34 comes into contact with the back side of the wall surface of the container 1 so that the inside of the container 1 Water or the like can be prevented from entering the back. Further, a plurality of convex fitting pieces 35 are provided outside the fixed portion 37, and the fitting pieces 35 are fitted to the fitting portions 12 provided in the vicinity of the insertion hole 10 inside the container body 1. Therefore, when the power cord 2 is bent, it is possible to prevent the bushing 3 from being deformed or twisted, and thus it is possible to prevent a gap from being generated between the lid portion 36 and the container body 1, such as water. Can be prevented from entering.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the bushing of the table tap of embodiment of this invention, (a) is a front view, (b) is one side view, (c) is a top view, (d) is a BB sectional view. It is an arrow view, (e) is an AA line cross-sectional arrow view when the power cord is inserted. It is a figure which shows a container same as the above, (a) is a figure which shows the inner bottom face of a body, (b) is CC sectional view taken on the line, (c) is a figure which shows the inner bottom face of a cover, d) is a sectional view taken along line DD, (e) is a partial sectional view as seen from one end in the longitudinal direction of the vessel, and (f) is a view as seen from the other end in the longitudinal direction of the vessel. is there. It is a perspective view which shows the table tap of embodiment of this invention. It is a perspective view which shows the conventional table tap.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container 10 Insertion hole 13 Groove 14 Fitting part 2 Power supply cord 3 Bushing 30 Protection part 31 Holding part 32 Projection part 33 Valve 34 Flange 35 Fitting piece

Claims (4)

  A container in which one or a plurality of blade receivers are housed, a power cord that is electrically connected to the blade receiver in the container and is drawn to the outside through an insertion hole opened in the container, and having a plug at one end; A table tap having a bushing that is extrapolated to and held by the body, the bushing protruding from the body and protecting the power cord, and the bushing is held by the body inside the body A table tap comprising: a holding portion, and including one or a plurality of projecting portions that are opposed to the power cord on the inner wall of the holding portion and contact at least when the power cord is bent.   2. The table tap according to claim 1, wherein the bushing includes one or more valves that are in contact with the periphery of the power cord on the inner wall of the protection portion over the entire periphery.   The bushing includes a flange that extends around the entire outer periphery of the holding portion, and the container has a groove in which the flange is fitted in the vicinity of the insertion hole, and the flange is in contact with the peripheral wall of the insertion hole over the entire periphery. The table tap according to claim 1 or 2, characterized in that The bushing includes one or more fitting pieces projecting outside the holding portion, and the container includes a fitting portion that fits with the fitting piece on an inner wall near the insertion hole. The table tap in any one of Claims 1 thru | or 3.

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