JP2014038776A - Table tap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a table tap which can enhance assembly efficiency to streamline a manufacturing process and reduce a manufacturing cost.SOLUTION: A table tap 1 comprises a blade receiving terminal 13, an operation switch 9, and a switch terminal 12 configured as a set of switch part 5 inside a housing body 2, and a cable connection terminal 4 and the switch part 5 are assembled as a module. From above, a plurality of components can be mounted on the housing body 2 as one component, thereby, a manufacturing process of the table tap 1 is streamlined compared to the case when each of the plurality of components is mounted individually, and a manufacturing cost can be reduced.

Description

  The present invention relates to a table tap that integrally constitutes a switch terminal and a blade receiving terminal.

Conventionally, a table tap with a switch capable of switching on / off of conduction to a blade receiving terminal has been used. As this switch, a tumbler switch is generally used (see, for example, Patent Document 1).
In addition, as a conduction mechanism of the conventional table tap with a switch, there is a blade receiving terminal, a seesaw-shaped metal plate switch terminal that can be moved with the blade receiving terminal as a fulcrum, and a cable connection terminal provided immediately below one end of the metal plate switch terminal. What is composed is commonly used. Each cable connection terminal and blade receiving terminal are respectively fixed to a cable connection terminal or blade receiving portion electrically connected to an external power source by soldering. When the operator performs a switch operation, the metal plate switch terminal is inclined toward one end side and comes into contact with the cable connection terminal, whereby conduction to each terminal, the blade receiving portion and the metal plate switch terminal is turned on. Conversely, when one end of the metal plate switch terminal is separated from the cable connection terminal, the conduction is turned off.

JP 2002-237361 A

  However, in such a conventional tumbler switch, the seesaw-like metal plate is merely placed on the blade receiving terminal and is not connected. Further, since the contact between the metal plate switch terminal and the blade receiving terminal serving as a fulcrum is made with a point or a line, the contact area between the two is small. Since energization between the two occurs at this contact portion, variations in the contact area due to differences in processing accuracy of the members may cause a large difference in conduction efficiency.

  Moreover, the cable connection terminal and the blade receiving terminal are each fixed by soldering between the cable connection terminal or the blade receiving portion that is electrically connected to the external power source. For this reason, there is a problem that poor contact is likely to occur due to the aging of the solder and the occurrence of cracks caused by the difference in shrinkage due to the temperature change between the terminal made of copper and the solder. Furthermore, when solder fixing is performed manually, the work efficiency is poor, and the fixing degree may vary depending on the skill level of the operator.

  Since each part is assembled individually, there is a problem that assembly efficiency and product reliability are low. Furthermore, since each terminal is exposed in the housing of the table tap, if foreign matter such as liquid or dust enters the housing, these may adhere to the terminal and cause deterioration in conduction performance.

  The present invention has been made paying attention to such a conventional table tap. That is, an object of the present invention is to suppress an influence on conduction efficiency due to a difference in processing accuracy of parts. Another object of the present invention is to make it difficult to cause poor contact between the blade receiving portion or the cable connection terminal and each terminal. Another object of the present invention is to increase assembly efficiency. Furthermore, an object of the present invention is to suppress deterioration of conduction performance caused by foreign matters adhering to each terminal.

In order to achieve the above object, the present invention is configured as follows.
That is, the present invention is a table tap including a cable connection terminal that is electrically connected to an external power source and a switch unit disposed in the cable connection terminal inside the housing, and the cable connection terminal protrudes from the switch unit. The switch portion has a blade receiving portion into which the outlet plug is inserted, and the switch receiving portion has a blade receiving terminal arranged away from the contact portion, and ON / OFF of the conductive connection to the blade receiving terminal. An operation switch that switches off and a fixing portion that engages and connects with either the contact portion or the blade receiving terminal on one end side, and the other end side is displaced by the ON operation to the operation switch and contacts with the other one. Thus, a table tap having a switch terminal for electrically connecting the contact portion and the blade receiving terminal is provided.

  According to the present invention, the blade receiving terminal, the operation switch, and the switch terminal can be configured as a single switch unit, and the cable connection terminal and the switch unit can be modularized. Therefore, it can be assembled to the housing as one component. As a result, the manufacturing process can be made more efficient and the production cost can be reduced as compared with the case where a plurality of parts are individually assembled to the housing.

In the present invention, the switch terminal is fixed by engaging and connecting with either the contact portion or the blade receiving terminal.
Therefore, compared to the state where the seesaw-shaped metal plate is used as a switch terminal and the existing table tap mechanism is merely fixed to the cable connection terminal, the contact portion or the blade receiving terminal and the switch terminal are compared. Can be reliably brought into contact with each other.

The present invention engages and connects the switch terminal with either the contact portion or the blade receiving terminal in the fixing portion.
Therefore, it is possible to prevent the deterioration of solder and the generation of cracks that occur when solder fixing is used, so that the occurrence of contact failure can be suppressed.

The present invention provides a contact housing that has an opening through which the switch portion is inserted through the blade receiving portion and accommodates the other end portion of the blade receiving portion of the blade receiving terminal, the contact portion of the cable connection terminal, and the switch terminal. The switch case which has a part can be provided.
A switch part is provided with the switch case which has a contact accommodating part which accommodates a part of blade receiving terminal, a contact part, and a switch terminal in an inside. Therefore, it has a double structure with a switch case in the housing, and it can suppress deterioration of the continuity performance due to foreign matters such as liquid and dust that enter the inside through the gap of the housing adhere to the blade receiving terminal etc. it can.

The present invention provides a contact housing that has an opening through which the switch portion is inserted through the blade receiving portion and accommodates the other end portion of the blade receiving portion of the blade receiving terminal, the contact portion of the cable connection terminal, and the switch terminal. And a switch case that includes an operation switch housing portion that houses a movable mechanism of the operation switch.
A switch part is provided with the switch case which has a contact accommodating part which accommodates a part of blade receiving terminal, a contact part, and a switch terminal in an inside. Therefore, it has a double structure with a switch case in the housing, and it can suppress deterioration of the continuity performance due to foreign matters such as liquid and dust that enter the inside through the gap of the housing adhere to the blade receiving terminal etc. it can.
In addition, a switch case having an operation switch housing portion for housing the movable mechanism of the operation switch is provided. Therefore, it becomes a double structure with a switch case in the housing, and it is possible to prevent foreign matters such as liquid and dust entering the inside from the gap of the housing from adhering to the operation switch moving mechanism and failure of the moving mechanism. Can do.

According to the present invention, the switch case may have a holding hole for inserting and holding the contact portion of the cable connection terminal.
When the terminal main body is inserted into the contact accommodating portion in order to accommodate the contact portion in the contact accommodating portion, it is necessary to provide two insertion holes in the switch case for allowing the terminal main body to pass inside the contact accommodating portion. . However, according to the present invention, since the lower switch case has the holding hole for inserting and holding the contact portion of the cable connection terminal, the terminal main body is disposed outside the contact accommodating portion, and only the contact portion is accommodated therein. be able to. As a result, the contact portion can be accommodated in the contact accommodating portion by providing only one insertion hole, so that foreign matter such as liquid or dust that has entered the housing enters the contact accommodating portion and adheres to the blade receiving terminal or the like. You can reduce the risk of doing it.

In the present invention, the switch case has a lower switch case and an upper switch case that constitute a contact accommodating portion, and the terminal body of the cable connection terminal extends along the longitudinal direction between the lower switch case and the upper switch case. It is possible to have a holding portion that is held between.
Because it has a holding part that clamps the terminal body of the cable connection terminal along the longitudinal direction between the lower switch case and the upper switch case, it prevents the switch part from falling off or misaligned with respect to the terminal body. Can be held.

In the present invention, the switch case may be formed of a heat resistant resin.
Since the switch case is formed of a heat resistant resin, the shape of the switch case can be maintained without being deformed even when the blade receiving terminal or the like housed therein generates heat due to conduction.

The present invention may include a plurality of switch portions along the longitudinal direction of the cable connection terminal.
Since a plurality of switch portions are provided along the longitudinal direction, a table tap capable of simultaneously using a plurality of outlet plugs can be provided. In addition, since the cable connection terminal and the plurality of switch parts can be modularized and manufactured integrally, the work efficiency can be further improved as compared with the case where the cable connection terminal and the plurality of switch parts are individually assembled to the housing.

According to the present invention, the switch terminal is a leaf spring-shaped contact terminal, has the fixing portion on one end side, protrudes in a cantilever shape on the other end side, and receives the pressure of the operation switch to the other one. On the other hand, it can be moved toward and away.
Since the switch terminal is a leaf spring-shaped contact terminal, it can be more reliably brought into contact with either the contact portion or the blade receiving terminal as compared with a seesaw shape. In addition, since the contact area is large, it is difficult for a difference in performance between products due to a difference in processing accuracy of parts.

The present invention may have a connecting portion for riveting the blade receiving terminal and the switch terminal.
Since the connecting portion for riveting the blade receiving terminal and the switch terminal is provided, the connecting state between the two can be more reliably maintained as compared with the case where soldering or the like is used.

In the present invention, the operation switch is a push button type, and may have an operation unit arranged so as to straddle two adjacent surfaces of the housing.
Since the operation switch is a push button type, there is only one pressing portion. Therefore, it can be operated more intuitively compared to the case where there are two pressing portions such as a tumbler switch. In addition, since the operation unit is disposed so as to straddle two adjacent surfaces of the housing, the operator can easily see the operation unit and can be easily operated as compared with the case where the operation unit is disposed only on one surface. Furthermore, by forming the upper end surface of the operation unit so as to be flush with the casing, it is possible to provide a table tap having excellent aesthetics.

In the present invention, it is possible to suppress the influence on the conduction efficiency due to the difference in the processing accuracy of the members by securely connecting the switch terminal and the blade receiving terminal.
Further, by engaging and connecting the two, it is possible to make it difficult to cause poor contact due to deterioration over time or generation of cracks in the fixed portion.
By modularizing the cable connection terminal and the switch unit, it is possible to improve production efficiency, lower production cost, and improve product reliability.
Furthermore, by providing a switch case having a contact receiving portion for receiving the other end portion of the blade receiving portion, the contact portion and the switch terminal in the blade receiving terminal, each terminal is exposed in the casing and foreign matter adheres to it. It is possible to suppress the deterioration of the conduction performance due to.

It is a perspective view of the table tap by one Embodiment of this invention. It is a disassembled perspective view of the table tap shown in FIG. It is a disassembled perspective view of the switch part shown in FIG. It is sectional drawing of the switch part except the operation switch shown in FIG. It is sectional drawing of the holding | maintenance part shown in FIG.

  Hereinafter, an embodiment of a table tap 1 according to the present invention will be described with reference to the drawings.

  The table tap 1 of the present embodiment includes a pair of cable connection terminals 4 that are electrically connected to an external power source (not shown) via a cable 3 inside the housing 2, and one of the cable connection terminals 4. The switch unit 5 is provided. The cable connection terminal 4 and the switch unit 5 constitute a switch module 6.

(Casing)
As shown in FIGS. 1 and 2, the housing 2 has a rectangular parallelepiped shape made of resin, and includes a lid portion 2a and a bottom portion 2b. A cable holding unit 7 that holds the cable 3 and is connected to the housing 2 is disposed on the side of the housing 2. The lid 2a is provided with three insertion ports 8 for inserting outlet plugs (not shown) in parallel, and switches for disposing the operation switches 9 at positions adjacent to the respective insertion ports 8. It has a hole 10. The switch hole 10 is provided so as to straddle two surfaces from the upper surface to the side surface of the lid portion 2a. Among the three insertion ports 8, the distance between the central insertion port 8 a and the insertion port 8 b provided at the position farthest from the cable holding unit 7 is the insertion provided on the cable holding unit 7 side. It is set wider than the distance from the mouth 8c. Thereby, even if a wide AC adapter or the like is inserted into the insertion port 8b, the adjacent insertion port 8a can be prevented from being blocked.

(Terminal body and contact part of cable connection terminal)
The cable connection terminal 4 is made of a strip-like copper plate and has three contact portions 4b in the longitudinal direction of the terminal body 4a. These contact portions 4b are formed as protruding pieces that are perpendicular to the longitudinal direction and protrude in the horizontal direction, and the contact portions 4b are provided with contact protrusions 4c having a flat upper surface. Moreover, all the three contact parts 4b protrude by the same length toward the same direction.

(Switch part)
As shown in FIG. 3, the switch unit 5 includes an operation switch 9, a contact housing case 11 as a switch case, a switch terminal 12, and a blade receiving terminal 13. The operation switch 9 includes a switch cover 14 as an operation unit, a switch bezel 15 and a movable mechanism unit 16.

  The switch cover 14 is held with respect to a switch bezel 15 provided in the housing 2 in a state in which the switch cover 14 can slide in the vertical direction. As shown in FIG. 1, the upper end surface of the switch cover 14 is configured to be flat, and is provided so as to be flush with the upper surface of the housing 2 when conduction is off. When the operator performs a downward pressing operation, the switch cover 14 is pushed downward, and the continuity is switched on. Even if the operator removes his / her finger from the switch cover 14, the upper end surface of the switch cover 14 is maintained at a position lower than the upper surface of the housing 2, so that the conduction on state is maintained. By pressing the switch cover 14 again, the upper end surface of the switch cover 14 and the upper surface of the housing 2 are flush with each other, and the continuity returns to the off state.

  The switch bezel 15 is locked in a state of being fitted in the switch hole 10 provided in the lid portion 2a, and functions as a guide portion that guides the switch cover 14 downward when the switch cover 14 is pressed. A part of the switch bezel 15 can be seen from the outside of the housing 2 in either the non-pressed state (off state) or the pressed state (on state). That is, when the switch cover 14 is positioned above the switch bezel 15 in the non-pressed state, the lower portion 15 a of the switch bezel 15 can be visually recognized below the switch cover 14. On the contrary, when the switch cover 14 is in the pressed state and is located below the switch bezel 15, the upper portion 15 b of the switch bezel 15 can be visually recognized above the switch cover 14. Therefore, by confirming which part of the switch bezel 15 is visible from the outside of the housing 2, it is possible to determine whether the conduction is in the on state or the off state. Further, in this embodiment, the switch bezel 15 and the switch cover 14 are colored with different colors, so that this determination is further facilitated.

  Since the operation switch 9 is a push button type, there is only one pressing portion. Therefore, it can be operated more intuitively compared to the case where there are two pressing portions such as a tumbler switch. An operation switch housing portion 17 and a movable mechanism portion 16 are disposed below the switch bezel 15.

  The movable mechanism portion 16 includes a switch base 16a, a push rod 16b, a rotor 16c, a spring 16d, and a spring lid 16e. The movable mechanism portion 16 is an alternate type, and the spring 16d contracts when the operator presses the switch cover 14, and the contracted state of the spring 16d is maintained even when the operator removes the finger from the switch cover 14. . Further, the contraction of the spring 16d is released by pressing the switch cover 14 again.

  As shown in FIG. 4, the contact accommodating case 11 includes a contact accommodating case upper part 11 a and a contact accommodating case lower part 11 b. The contact accommodating case upper portion 11a and the contact accommodating case lower portion 11b are combined to accommodate the other end portion 13b of the blade receiving portion 13a of the blade receiving terminal 13, the contact portion 4b of the cable connection terminal 4, and the switch terminal 12. Part 18 is formed. As a result, a double structure having the contact housing case 11 in the housing 2 is formed, and the continuity performance is deteriorated due to foreign matters such as liquid and dust entering the inside through the gap of the housing 2 adhering to the blade receiving terminal 13 and the like. Can be suppressed. Further, since the contact housing case 11 is made of a heat-resistant resin, it is possible to prevent deformation due to heat generated by the switch terminal 12 and the like in a conductive state.

The contact housing case lower portion 11 b has a holding hole 19 that holds the contact portion 4 b of the cable connection terminal 4 through the contact housing portion 18. Assuming that the terminal body 4a is inserted into the contact housing portion 18 in order to accommodate the contact portion 4b in the contact housing portion 18, there are two holes or grooves for passing the terminal body 4a in the contact housing case 11. It is necessary to install in the place. However, according to the present embodiment, the contact housing case lower portion 11b has the holding hole 19 for inserting and holding only the contact portion 4b of the cable connection terminal 4, so that the terminal body 4a is disposed outside the contact housing portion 18, Only the contact part 4b can be accommodated inside. Thereby, since the contact part 4b can be accommodated in the contact accommodating part 18 only by providing one holding hole 19, foreign matters such as liquid and dust that have entered the housing 2 enter the contact accommodating part 18, The possibility of adhering to the blade receiving terminal 13 or the like can be reduced.
Moreover, the switch module 6 which has the some switch part 4 in a longitudinal direction can be formed by inserting the some contact part 4b of the cable connection terminal 4 in the holding hole 19 of the switch part 5 corresponding to each. .

As shown in FIGS. 2 and 5, the contact housing case upper portion 11a and the contact housing case lower portion 11b form a holding portion 20 that holds the terminal body 4a along the longitudinal direction in a combined state. The holding | maintenance part 20 consists of the step part 20a provided in the outer side of the contact accommodating case lower part 11b, and the side wall 20b of the contact accommodating case upper part 11a. The terminal body 4a is sandwiched between the step portion 20a and the side wall 20b by combining the contact housing case upper portion 11a and the contact housing case lower portion 11b with the step portion 20a holding the terminal body 4a. As a result, the switch unit 5 can be prevented from falling off or misaligned, and can be reliably held in the terminal body 4a.
Mounting portions 21a and 21b for positioning the contact portion 4b and the switch terminal 12 and preventing them from falling off by sandwiching the plate thicknesses are provided at the bottom inside the contact housing case lower portion 11b.

The movable mechanism portion 16 is housed in the operation switch housing portion 17. The operation switch housing portion 17 is formed by combining the operation switch housing portion upper portion 17a and the operation switch housing portion lower portion 17b. As a result, it is possible to prevent a failure of the movable mechanism portion 16 due to foreign matter that has entered the inside of the housing 2 adhering to the movable mechanism portion 16.
The operation switch accommodating portion upper portion 17a, the operation switch accommodating portion lower portion 17b, and the contact accommodating case upper portion 11a have movable mechanism insertion holes 22a, 22b, and 22c through which the movable mechanism portion 16 is inserted, respectively. Thereby, the movable mechanism part 16 can move freely without being obstructed by the operation switch accommodating part upper part 17a. Moreover, since the operation switch accommodating part lower part 17b and the contact accommodating case upper part 11a are formed from a single resin molded body, an increase in the number of parts can be suppressed.

The switch terminal 12 has a leaf spring shape, and a tip portion 12b opposite to the fixed portion 12a protrudes in a cantilever shape. A spring lid 16 e provided at the lower end of the movable mechanism 6 is in contact with the switch terminal 12. Further, the switch terminal 12 is connected to the blade receiving terminal 13 by a rivet 23 in the fixing portion 12a.
Since the switch terminal 12 has a leaf spring shape and is connected to the blade receiving terminal 13 by the fixing portion 12a, the switch terminal 12 can be more reliably brought into contact with the blade receiving terminal 13 than in the case of a seesaw shape. In addition, since the contact area is large, it is difficult for a difference in performance between products due to a difference in processing accuracy of parts. In addition, by using the rivet 23 as a connecting method, it is possible to suppress the deterioration of the fixing portion 12b over time and the occurrence of cracks as compared with the case of solder fixing.

  The blade receiving terminal 13 has a blade receiving portion 13a that is disposed apart from the contact portion 4b and into which an outlet plug (not shown) is inserted. The blade receiving portion 13 a is provided so as to protrude from the opening 24 of the contact housing case 11.

(Description of usage state)
In the non-pressed state (when off), the operation switch 9 is flush with the upper surface and the side surface of the housing 2. Therefore, since it does not protrude from the housing 2, it is excellent in aesthetics, and it is possible to prevent damage caused by a foreign object hitting the operation switch 9, or accidentally touching the operation switch 9 and pressing it.

When the operator pushes the switch cover 14, the upper end surface of the switch cover 14 falls below the upper surface of the housing 2. Since the switch cover 14 is disposed so as to straddle the upper surface and the side surface of the housing 2 in a state in which the table tap 1 is assembled, it is easy to perform a pressing operation and to visually recognize the on / off state of conduction. By pressing the operation switch 9, the movable mechanism portion 16 works, and the spring lid 16 e pushes down the tip end portion 12 b of the switch terminal 12. Thereby, the front-end | tip part 12b contacts the contact protrusion 4c of the cable connection terminal 4, and the conduction | electrical_connection to the blade receiving terminal 13 will be in an ON state. The movable mechanism 16 is an alternate type, and even if the operator releases the finger after pressing the switch cover 14, the upper end surface of the switch cover 14 is kept at a position lower than the upper surface of the housing 2. The on state of conduction is maintained (FIG. 2).
Further, when the pressing operation is performed again, the upper end surface of the switch cover 14 returns to a position flush with the upper surface of the housing 2, and the conduction to the blade receiving terminal 13 is turned off.

(Modification)
In this embodiment, although the table tap 1 which has the three insertion ports 8 was shown, a number is not restricted to this.
In the present embodiment, the upper end surface of the switch cover 14 is lower than the upper surface of the housing 2 when the continuity is on. However, even if the continuity is on, It can also be the same across two sides. Thereby, even if it is an ON state, it can be excellent in aesthetics. Moreover, although it protrudes in the off state, it can be flush with the upper surface and the side surface of the housing 2 in the on state.
In the present embodiment, an example in which the switch part is provided only on one side of the two cable connection terminals 4 is shown, but the switch part may be provided on both of the cable connection terminals 4. As a result, the plurality of operation switches 9 can be arranged separately on both sides in the longitudinal direction, so that the degree of freedom in design of the table tap 1 is increased.

DESCRIPTION OF SYMBOLS 1 Table tap 2 Housing | casing 2a Cover part 2b Bottom part 3 Cable 4 Cable connection terminal 4a Terminal main body 4b Contact part 4c Contact protrusion 5 Switch part 6 Switch module 7 Cable holding part 8 Plug 8a Plug 8b Plug 8c Plug Slot 9 Operation switch 10 Switch hole 11 Contact accommodation case 11a Contact accommodation case upper part
11b Contact housing case lower part 12 Switch terminal 12a Fixing part 12b Tip part 13 Blade receiving terminal 13a Blade receiving part 13b Other end part 14 Switch cover 15 Switch bezel 16 Movable mechanism part 16a Switch base 16b Push rod 16c Rotor 16d Spring 16e Spring cover 17 Operation switch housing part 17a Operation switch housing part upper part 17b Operation switch housing part lower part 18 Contact accommodation part 19 Holding hole 20 Holding part 20a Step part 20b Side wall 21 Attachment part 21a Attachment part 21b Attachment part 22 Movable mechanism insertion hole 22a Movable mechanism insertion Hole 22b Movable mechanism insertion hole 22c Movable mechanism insertion hole 23 Rivet 24 Opening

Claims (10)

A table tap including a cable connection terminal electrically connected to an external power source and a switch unit disposed in the cable connection terminal inside the housing,
The cable connection terminal consists of a terminal body and a contact part protruding from the switch part.
The switch portion has a blade receiving portion into which the outlet plug is inserted, and has a blade receiving terminal disposed away from the contact portion, an operation switch for switching on / off of the conductive connection to the blade receiving terminal, and one end side Has a fixed portion that engages and connects with either the contact portion or the blade receiving terminal, and the other end side is displaced by the on operation of the operation switch and comes into contact with either one of the contact portion and the blade receiving terminal. A table tap having a switch terminal for conducting connection.   The switch portion has an opening through which the blade receiving portion is inserted to the outside, and has a contact receiving portion for receiving the other end side portion of the blade receiving portion in the blade receiving terminal, a contact portion of the cable connection terminal, and the switch terminal. The table tap of Claim 1 provided with a switch case.   The switch part has an opening through which the blade receiving part is inserted to the outside, the other end side part of the blade receiving part in the blade receiving terminal, the contact part of the cable connection terminal, and the contact accommodating part for accommodating the switch terminal, The table tap of Claim 1 provided with the switch case which provides the operation switch accommodating part which accommodates the movable mechanism of an operation switch.   The table tap according to claim 2 or 3, wherein the switch case has a holding hole for inserting and holding the contact portion of the cable connection terminal.   The switch case has a lower switch case and an upper switch case that constitute a contact accommodating portion, and holds the terminal body of the cable connection terminal along the longitudinal direction between the lower switch case and the upper switch case. The table tap in any one of Claims 2-4 which has a part.   The table tap according to any one of claims 2 to 5, wherein the switch case is formed of a heat resistant resin.   The table tap in any one of Claims 1-6 provided with a some switch part along the longitudinal direction of a cable connection terminal.   The switch terminal is a leaf spring-shaped contact terminal having the fixing portion on one end side and protruding in the form of a cantilever on the other end side, and is in contact with one of the other by receiving the pressure of the operation switch. The table tap according to any one of claims 1 to 7, wherein the table tap is movable.   The table tap in any one of Claims 1-8 which has a connection part which rivets a blade receiving terminal and a switch terminal.   The table tap according to any one of claims 1 to 9, wherein the operation switch is a push button type and has an operation portion arranged so as to straddle two adjacent surfaces of the housing.

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