KR20060071868A - Relay device - Google Patents

Abstract

Provided is a relay device capable of easily attaching and detaching a relay main body to a connecting rod with a small force as compared with a conventional configuration.

The relay main body A has a latching projection 5 protruding from the upper surface and the terminals 2 to 4 on the rear surface of the device 1 in which the pluggable terminals 2 to 4 protrude. The latching projection 5 is in contact with the projection receiving surface provided on the connecting table when the relay main body A is detached from the connecting table. In the state where the locking projection 5 is in contact with the projection receiving surface, the device body 1 is placed in the insertion and disengagement direction of the terminals 2 to 4 with the contact portion of the locking projection 5 as the point of contact with the projection receiving surface. By rotating, the relay main body A is detached from the connecting table.

Description

Relay device {RELAY DEVICE}

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the relay main body of embodiment of this invention.

2 is a perspective view illustrating a process of installation of an in-phase;

3 is a cross-sectional view of the main portion showing the process of installing the statue.

4 is a perspective view showing the configuration of an in-phase;

5 is a perspective view showing the configuration of an in-phase;

It is a perspective view which shows the junction mounting plate used for in-phase.

FIG. 7: shows the structure of the in-phase relay main body, FIG. 7 (a) is a perspective view, FIG. 7 (b) is a perspective view of a principal part.

It is a perspective view of the main part which shows the structure of a frostbite.

9 is a perspective view of the relay body in phase.

10 is a perspective view of the relay body in phase.

11 is a perspective view showing another configuration of the relay main body in phase.

12 is a perspective view showing another configuration of the relay body in phase.

It is sectional drawing of the principal part which shows a conventional example.

(Explanation of symbols for the main parts of the drawing)

One … Device 2 to 4. Terminals

5…. Jamming 12. Engaging protrusion (protrusion receiving surface)

13. Maintenance piece 14. Construction indication part

15,16. Nail error prevention irregularities 17. Protrusion Piece (Joint Protrusion)

18. Engaging hole 19... Manual lever

20... Operation recess 24. Nameplate

25…. 29,29 'terminal Terminal cover

35. Cover groove (cover positioning part)

36. Cover mounting recess (cover positioning part)

37. Cover installation protrusion (cover positioning part)

39,40... Installation claw

41…. Mounting hole 42. Guide Home

A… Relay body B... Connecting rod

C… Joint mounting plate

The present invention relates to a relay device in which a relay main body having an insertion terminal is detachably provided in a connecting table to which a terminal of the relay main body is inserted and connected.

Conventionally, as this kind of relay device, as shown in FIG. 13, the relay main body A which the terminal 2 protruded from the lower surface of the base body 1, and a pair of coupling arm 43 which protruded upwards are shown. It is comprised by the connection stand B which hold | maintains a relay main body between 44 and.

On the opposite surface to the engaging arm 44 in the engaging arm 43 on one side (right direction in the drawing), a engaging projection 45 is formed to protrude from the side of the machine body 1 of the relay main body A. The guide groove 46 is formed, and the lower end of the bottom surface of the guide groove 46 is continuous with the engaging hole 47 engaged with the engaging projection 45. An introduction groove 48 in which the bottom is inclined so as to be closer to the engagement arm 43 from the distal edge of the engagement arm 44 toward the opposite side to the engagement arm 43 in the other engagement arm 44. Is formed, and below the introduction groove 48, a coupling hole 47 is formed which is engaged with the engaging projection 45 formed to protrude from the side surface of the device body 1 of the relay body A. In addition, the lower surface of both coupling protrusions 45 of the relay main body A is inclined in the direction away from the side surface of the device body 1.

The relay device is in a state in which one coupling protrusion 45 of the relay main body A is aligned with the position of the guide groove 46, and the other coupling protrusion 45 is aligned with the position of the introduction groove 48. By pushing the device body 1 straight down along the protruding direction of the terminal 2, the terminal 2 is inserted into and connected to the connecting table B, and the device body 1 is a pair of coupling arms. It is inserted and maintained between 43 and 44. Here, by engaging each engaging projection 45 of the relay main body A to the engaging hole 47, the relay main body A is prevented from coming out (for example, refer patent document 1).

[Patent Document 1] Japanese Patent Application Laid-Open No. 7-45348 (Second page, Fig. 2)

However, in the above-described configuration, in order to align the relay main body A with respect to the connection table B, alignment is necessary at two places of the guide groove 46 and the introduction groove 48, so that the connection table B is used. The installation of the relay body A to the end is cumbersome. In addition, since a relatively large force may be required for the insertion and removal of the terminal 2 to the connecting table B, it is also required to reduce the force required for attaching and detaching the relay body A to the connecting table B. It is becoming. In particular, when the relay main body A has a plurality of terminals 2, a large force is required for the attachment and detachment of the relay main body A to the connection table B. In addition, in the above-described relay device, the relay body A is held in the connecting table B in the right and left opposite directions in FIG. 13, and thus the relay main body A is shown in relation to the connecting table B. We may change left and right of 13 and may install.

This invention is made | formed in view of the said reason, Comprising: It aims at providing the relay apparatus which can carry out attachment and detachment of a relay main body with respect to a connection board easily and with little force compared with a conventional structure.

In the invention of claim 1, the insertion terminal includes a relay main body which protrudes from one surface of the apparatus body, and a connecting table to which the terminal of the relay main body is inserted and connected in a state where the relay main body is detachably provided and the relay main body is installed. The main body of the relay protrudes from the other side of the apparatus body adjacent to one side and the terminal on one surface of the terminal body protruding from the terminal body, and receives the protrusions provided on the connecting table when the terminal is inserted into and removed from the connecting table. It is characterized in that the contact portion with the projection receiving surface has a locking projection that becomes a point of rotation of the device body by contacting the surface.

According to this configuration, first, the engaging projection is brought into contact with the projection receiving surface, and then the relay body is connected to the connecting table by rotating the device body in the direction of insertion of the terminal with the contact portion with the projection receiving surface at the engaging projection as a point. Can be installed. That is, since the relay main body can be aligned with respect to the connecting rod just by bringing the engaging protrusions into contact with the projection receiving surface, the installation of the relay main body with respect to the connecting rod is simpler than in the conventional configuration. In addition, when the device body is rotated and the terminal is inserted into the connecting table by pressing the site away from the point as the reverse point in the device body, the terminal serving as the operating point is applied to the reverse point according to the principle of lever. The force is inserted into the splice by the greater force. That is, the terminal can be inserted with a relatively small force relative to the connecting table. When the relay main body is detached from the connecting table, the device body may be rotated in a direction opposite to that at the time of installation. In this case as well, the terminal can be separated from the connecting table with a relatively small force using the principle of lever. In addition, since the locking projection which becomes a point of rotation is provided in one place, the relay main body is not provided in the opposite direction with respect to a connection table.

In the invention of claim 1, in the invention of claim 1, a plurality of the terminals of the relay main body are provided in a line, and the locking projections are arranged in a line with the terminal in the device body. do.

According to this configuration, when the relay main body is attached to the connecting table, a plurality of terminals are inserted into the connecting table one by one from the locking projection side sequentially, so that the connecting table can be operated with a smaller force than when all the terminals are inserted into the connecting table at the same time. The relay body can be installed in the In addition, when the relay main body is separated from the connecting table, the plurality of terminals are separated from the connecting table one by one from the opposite side to the latching projection. Therefore, the relay is disconnected from the connecting table with a small force as compared with the case where all terminals are simultaneously removed from the connecting table. The main unit can be removed.

In the invention of claim 1 or 2, in the invention of claim 1 or 2, the relay main body and the connection table are provided in plural kinds, and a combination thereof is determined, and the relay main body and the connection table are fitted only when the combination is correct. The pair of jaw error prevention uneven portions having different arrangements of the concave portion and the convex portion for each combination of the connecting rods are provided on each of the one surface facing the connection table in the device body and the one surface facing the device body in the connection table. It features.

According to this configuration, the relay main body can be prevented from being incorrectly installed in another type of connection table.

According to a fourth aspect of the present invention, in the third aspect, the jaw error preventing uneven portion on the side of the apparatus body is formed at a part that can be visually confirmed in a state where the relay main body is provided at the connecting table.

According to this configuration, since the rough error prevention unevenness can be visually checked at all times, it is possible to visually inform the discrepancy between the types of the relay main body and the connection table.

The invention of claim 5 is characterized in that, in the invention of claim 3 or 4, the jaw error preventing uneven portion on the side of the device body is formed around the locking projection.

According to this configuration, when the jaw error preventing concave-convex portion is installed at the portion of the relay main body that first contacts the connecting rod when the relay main body is installed on the connecting rod, the installation work can be stopped early when a jaw error occurs. The working time extended by the jaw error can be restrained relatively short.

In the invention according to any one of claims 1 to 5, the connecting table is provided with the terminal between the locking piece on one surface facing the device body in a state where the relay main body is provided. It has a holding piece in a position, and in the holding piece and the apparatus body, the engaging projection protrudes on one side of the site | part which contacts a holding piece, and the engaging hole which engages with a engaging projection is formed in the other side, It is characterized by the above-mentioned.

According to this configuration, since the engaging projection engages the engaging hole in the state where the relay main body is installed with respect to the connecting table, it is easy to judge how much the relay main body can be pushed to the connecting table side when the relay main body is installed in the connecting table. In addition to this, the relay main body can be prevented from being pulled out of the connecting table.

In the invention according to any one of claims 1 to 6, the relay main body indicates an arrow indicating a rotational direction of the device body when the relay main body is attached to the connecting table, and separates it from the connecting table. It is characterized by having a construction display part which marked the arrow which shows the rotational direction of the apparatus body at the time of taking out in a site | part other than one surface which opposes a connection table in an apparatus body.

According to this structure, since a worker is shown how to attach or detach a relay main body with respect to a connection table, the improvement of the efficiency of attaching and detaching operation can be expected. In addition, since the relay main body can be prevented from detaching by the wrong method, it also leads to preventing the relay main body and the connecting rod from being damaged.

In the invention of claim 8, in the invention of any one of claims 1 to 7, the connection having a pair of mounting claws which elastically holds the relay main body and the connecting table coupled to each other from both sides in the insertion direction of the terminal. In order to make it possible to install in a mounting board, the mounting hole which the mounting claw of a connection mounting board couple | engages is formed in each of the relay main body and the connection stand, and the relay main body and the connection stand use the jig inserted into the installation hole of the relay main body. The mounting body coupled to the mounting hole of the relay body is detached from the connecting mounting plate by removing the mounting claw from the mounting hole in a manner that resists elasticity, and the relay body moves the jig used for removing the mounting claw from the mounting hole into the mounting hole. A guide groove for guiding is provided on the inner circumferential surface of the installation hole.

According to this configuration, since the jig for separating the relay main body and the connecting rod from the joint mounting plate becomes easy to be inserted into the mounting hole of the relay main body, it is easy to remove the relay main body and the connecting rod from the joint mounting plate. Leads to effects.

In the invention according to any one of claims 1 to 8, the relay main body is connected to a contact point, and the connection terminal is exposed from a portion other than one surface of the device body that faces the connection table. And a terminal cover covering the connection terminals by being installed in the apparatus body, wherein the apparatus body has a plurality of types of cover positioning parts for positioning the plurality of types of terminal covers having different shapes for each type.

According to this configuration, not only one type of terminal cover but also a plurality of types of terminal covers having different shapes can be positioned, so that only the terminal cover can be replaced in accordance with the intended use.

The invention of claim 10 is the invention according to any one of claims 1 to 9, wherein the relay main body includes a manual lever operated to manually open and close a contact, and the manual lever is opposed to the connecting rod in the device body. The paper is exposed in an operation recess formed concave on one surface other than one surface, and the operation recess is characterized in that one side of the manual lever is open.

According to this structure, since one side of a manual lever is open, there exists an advantage that a manual lever is easy to operate.

The invention of claim 11 is the invention according to any one of claims 1 to 9, wherein the relay main body includes a manual lever operated to open and close a contact manually, and the manual lever is opposed to the connecting rod in the device body. The paper is exposed in an operation recess formed concave on one surface other than one surface, and the operation recess is characterized in that both sides of the manual lever are open.

According to this structure, since both sides of a manual lever are open, there exists an advantage that it is easy to operate a manual lever. In addition, since the apparatus body can be seen visually from both sides of the manual lever by having an operation recess, identification with other relay bodies which do not have an operation recess becomes easy.

According to the invention of claim 10, in the invention of claim 10 or 11, the relay main body includes a name plate capable of recording provided on the device body along one surface of the device body in which the operation recess is formed, and the name plate is partially. It extends so that it may be installed along the inner peripheral surface of an operation recess.

According to this configuration, since the name plate extends to the inside of the operation recess, a recordable area in the device body is secured relatively wide, and a relatively large amount of information can be recorded.

As shown in FIG. 2, the relay device of the present embodiment controls the on / off of power supply to a load (not shown) by opening and closing a contact (not shown) stored in the device 1. And a connecting table B electrically connected to the relay main body A in a state where the relay main body A is installed. In the following, the upper and lower sides of FIG. 2 will be described with the upper and lower sides and the left direction as the rear.

As shown in FIG. 1, the relay main body A is equipped with the apparatus body 1 formed in the thin box shape with the smallest dimension of a left-right direction. From the back surface of the device body 1, insertion-type terminals 2-4 which are inserted and connected to the connection table B protrude rearward. The terminals 2 to 4 protrude side by side in a plurality of lines (five in this case) in the vertical direction, and are arranged to face the upper left side on the rear surface of the device body 1. Each terminal 2-4 is formed in the plate shape which is long in the front-back direction, and thin in the left-right direction, respectively. The relay main body A has a coil terminal for energizing an internal coil (not shown), and an auxiliary terminal connected to an auxiliary contact (not shown) interlocked with the contact and used to detect the opening and closing of the contact. In the present embodiment, of the terminals 2 to 4 protruding from the back of the device body 1, the two lower terminals 2 are coil terminals, and the upper three terminals 3 and 4 are auxiliary terminals. to be. The lower two terminals 4 of the auxiliary terminals are connected to each other in the apparatus 1, and also function as detection terminals described later. The apparatus body 1 is provided with the cylindrical part 10 of the cross section along the back surface installed in the periphery of the terminals 2-4 so that the terminal 2-4 may be surrounded.

Moreover, the relay main body A is provided with the connection terminal 25 (refer FIG. 5) connected to a contact, separately from the terminals 2-4 which are inserted and connected to the connection table B mentioned above. The connection terminal 25 is exposed over the upper surface and the front surface of (1). The connection terminal 25 is a screwed terminal to which a load (not shown) and a power supply (not shown) are connected, and includes a terminal plate 26 and a terminal screw 27 screwed to the terminal plate 26. In the present embodiment, four pairs of connecting terminals 25 are provided, and two pairs of contacts are provided to connect a pair of connecting terminals 25 to each pair of contacts. On the other hand, two sets of connection terminals 25 may be connected in parallel. Here, the insulating insulating wall 28 (refer FIG. 5) is arrange | positioned between a pair of connection terminal 25, and the connection terminal 25 of each pair is arrange | positioned in the up-down direction in staircase shape.

By the way, the relay main body A of this embodiment can also open and close a contact manually. Opening and closing of the contact point manually is performed by operating the manual lever 19 provided in the left end part of the upper surface in the apparatus 1. The manual lever 19 is disposed in the operation recess 20 which is recessed downward on the upper surface of the device body 1. The operation recessed part 20 is formed with the back side inclined surface 21 inclined so that it may be concave downward as the front, and the front side inclined surface 22 inclined so that it may be concave downward as the rear. The manual lever 19 is exposed from the operation window 23 opening to the rear inclined surface 21 and is operated in the front-rear direction along the rear inclined surface 21. Here, one side of the left and right directions (here, left direction) is open | released in the operation recessed part 20 so that the manual lever 19 may be easy to operate.

On the other hand, as shown in FIG. 2, in the connection table B, the installation recessed part 11 which recessed back in the same shape as the back surface of the apparatus body 1 is formed in the front surface. The relay main body A is attached to the connecting table B in a state where the rear end portion is inserted into the mounting recess 11. In the connecting table B shown in FIG. 2, a plurality of mounting recesses 11 (in this case, four) are formed side by side in the horizontal direction, and a plurality of relay bodies A (here, up to four) can be provided. . Here, the connection table B is provided with the detection circuit (not shown) to which the two terminals 4 as detection terminals mentioned above are connected between a pair of detection terminals in the state in which the relay main body A was provided, By monitoring the opening and the short circuit between the detection stages by the detection circuit, it is determined whether or not the relay main body A is provided in each of the installation recesses 11.

Next, a structure for attaching the relay main body A to the connection table B will be described.

In the relay main body A, as shown in FIG. 1, the latching protrusion 5 which protrudes upwards from the upper surface of the outer peripheral surface in the cylinder part 10 is formed. The locking projection 5 protrudes from the rear end of the cylinder part 10 in the shape along the back surface of the apparatus body 1 between the left and right ends of the cylinder part 10, and between the back surface of the apparatus body 1, and Have a gap. As shown in FIG. 3, the front end surface of the locking protrusion 5 is inclined so that the protrusion dimension of the locking protrusion 5 may become smaller as it is the back side of the apparatus body 1. As shown in FIG.

Moreover, in the upper surface of the apparatus 1, the upper step 7 which retreats downward as the upper contact surface 6 mentioned later is formed, and in the lower surface of the apparatus 1, the rear end is mentioned later. The lower step 9 is formed to retreat upward as the lower contact surface 8. Here, the lower contact surface 8 is formed longer in the front-rear direction than the upper contact surface 6, and as shown in FIG. 4, a protruding piece (coupling projection) extending in the left and right direction at the center of the lower contact surface 8 ( 17) is formed to protrude. The protruding piece 17 is formed in the shape which the cross section orthogonal to a left-right direction becomes a part of circular arc.

On the other hand, the connection table B is provided with the engaging protrusion 12 which protrudes downward from the inner peripheral surface of the mounting recess 11 in the upper end part of the mounting recess 11 as shown in FIG. The engaging projection 12 is set to a protruding dimension in which the distal end is accommodated in the gap between the rear surface of the device body 1 and the locking projection 5 in a state where the relay main body A is provided in the connecting table B. As shown in FIG. In addition, the connection table B of the mounting recess 11 is in contact with the lower contact surface 8 of the device body 1 in a state in which the rear end of the relay main body A is inserted into the mounting recess 11. The holding piece 13 (refer FIG. 2) which protrudes forward from the lower peripheral edge is provided. The holding piece 13 is formed such that a coupling hole 18 through which the protruding piece (coupling projection) 17 of the device body 1 engages. The engagement hole 18 is arrange | positioned in the position where the protrusion piece 17 is fitted in the state in which the relay main body A was reliably provided with respect to the connection table B. As shown in FIG.

Hereinafter, the process of attaching the relay main body A to the connection table B will be described with reference to FIGS. 2 and 3.

First, as for the relay main body A, the angled part between the back surface and the upper surface of the device body 1 in the installation recessed part 11 in the state which the back surface of the device body 1 faced the connection table B was carried out. Is inserted. That is, a part of the relay main body A is inserted in the installation recessed part 11 in the state inclined with respect to the connection table B like FIG. At this time, as shown in FIG. 3, the upper end portion of the rear surface of the device body 1 is in contact with the front surface of the engaging projection 12. Further, the distal end portion of the engaging projection 12 is accommodated in the gap between the back surface of the device body 1 and the locking projection 5. Next, the entire surface of the rear surface of the device body 1 is inserted into the mounting recess 11. At this time, the back surface of the engaging projection 12 functions as a projection receiving surface on which the engaging projection 5 is engaged, and the device body 1 is engaged with the engaging projection 5 by engaging the engaging projection 5 with the engaging projection 12. It rotates clockwise in FIG. 3 using the contact part with the engagement protrusion 12 in 5) as a point. Here, the angled portion between the back surface of the device body 1 and the lower contact surface 8 moves on the holding piece 13 of the connection table B and is introduced into the installation recess 11. When the protruding piece 17 is fitted into the engagement hole 18, installation of the relay main body A to the connection table B is completed.

In this state, the upper step 7 is in contact with the leading edge of the upper end of the connecting table B, and the lower step 9 is in contact with the leading edge of the holding piece 13. In addition, the upper contact surface 6 is in contact with the inner circumferential surface of the mounting recess 11, and the lower contact surface 8 is in contact with the inner circumferential surface of the mounting recess 11 and the upper surface of the retaining piece 13. The rear end of the sieve 1 is held in the installation recess 11. In this state, the terminals 2 to 4 are inserted into and connected to the connection table B. As shown in FIG.

In the present embodiment, as described above, the relay main body A and the connection table B are coupled by rotating the device body 1 of the relay main body A by hooking the engaging protrusion 5 to the engagement protrusion 12. Since the locking projection 5 is fastened to the engaging projection 12, the alignment of the relay body A and the connection table B can be facilitated. In addition, by pressing the part relatively far from the contact part with the engaging projection 12 in the latching projection 5 used as a point (for example, the front-end part of the upper surface of the apparatus 1) as an emphasis, according to the principle of lever The terminals 2 to 4 serving as operating points can be inserted into the connection table B with a relatively small force. In this configuration, the plurality of terminals 2 to 4 arranged in a line up and down are not inserted into the connecting table B at the same time, but the connecting tables B are sequentially arranged one by one from the latching projection 5 side, that is, the upper side. ), There is also an advantage that the terminal B can be installed with a smaller force than when the terminals 2 to 4 are inserted all at the same time.

In addition, since the installation is completed by inserting the protruding piece 17 into the engagement hole 18, it is easy to know how far the main body A should be pushed against the installation recess 11, and the relay The main body A can be prevented from falling out from the connection table B. FIG. Here, since the protruding piece 17 is formed in the shape which a cross section becomes a part of circular arc, it is not caught by the lower end part of the connection table B at the time of installation of the relay main body A, At the time of separation, it is not caught by the peripheral edge of the coupling hole 18. That is, the protruding strip 17 does not prevent the relay body A from being attached to the connecting table B.

As shown in FIG. 5, the relay device in which the relay main body A and the connecting table B are coupled is connected to each other with a main plate 38 disposed along the lower surface of the relay main body A and the connecting table B. FIG. It can be installed in the plate (C). As shown in Fig. 6, the connecting mounting plate C is a pair of pairs which hold and hold the lower ends of the relay main body A and the connection table B coupled to each other from both sides in the insertion direction of the terminals 2-4. It has installation claws 39 and 40. In this embodiment, since the maximum 4 relay main bodies A can be arrange | positioned simultaneously with respect to the connection table B, four installation claws 39 and 40 are provided. As shown in Fig. 7 (a), each of the connection table B and the relay main body A has an installation hole 41 (to which the installation claws 39 and 40 of the connecting mounting plate C are engaged). Not shown] is formed for the B) side.

The mounting claw 39 engaged with the mounting hole of the connection table B is formed by cutting a part of the main plate 38, and the mounting claw 40 engaged with the mounting hole 41 of the relay body A. Consists of a spring member provided in a part of the main plate 38. The mounting claw 40 coupled to the mounting hole 41 of the relay main body A has flexibility in the direction of widening the gap with the other mounting claw 39, and is provided in the mounting hole of the connecting table B. When the relay main body A is pressed toward the main plate 38 in the state in which the mounting claw 39 is engaged, the mounting claw 40 is engaged with the mounting hole 41 of the relay main body A, and the connecting mounting plate C is connected. Installation of relay device to is completed.

On the other hand, in the case where the relay device is separated from the connecting mounting plate C, a jig (not shown) such as a flat head screwdriver is inserted into the mounting hole 41 of the relay main body A so that the mounting clip 40 is elastically mounted. It is necessary to resist and remove from the mounting hole 41. Here, in the inner circumferential surface of the mounting hole 41 of the relay main body A, the tip of a flat-blade screwdriver is provided so that the jig for removing the mounting claw 40 from the mounting hole 41 of the relay main body A can be easily inserted. A guide groove 42 for guiding the groove into the installation hole 41 is formed to be concave upward in the width at which the tip end portion of the flat-blade screwdriver is accommodated, as shown in Fig. 7B.

However, in the state in which the some relay main body A is provided in the connection table B like FIG. 5, the relay main body A is isolate | separated from the connection mounting plate C one by one. That is, only by removing the mounting claw 40 from the mounting hole 41 of one relay main body A, the other relay main body A and the connection table B are hold | maintained in the junction mounting plate C. Therefore, it is necessary to separate the relay main body A from the connection table B provided in the joint mounting plate C. When separating the relay main body A from the connection stand B, the process of attachment of the relay main body A to the connection table B mentioned above is performed in reverse. That is, for example, the front end portion of the device body 1 is pulled in a direction away from the joint mounting plate C, and the device body 1 is brought into contact with the engagement protrusion 12 in the locking projection 5 as a point. ), The relay main body A can be separated from the connecting table B by rotating the counterclockwise direction in FIG. 3. Thus, even when separating the relay main body A from the connection table B, the advantage that the terminal 2-4 can be removed from the connection table B with a comparatively small force using the principle of a lever. have.

In addition, the relay main body A of this embodiment is detachable with respect to the connection table B by rotating the apparatus body 1 as mentioned above, Even if the apparatus body 1 is translated back, the connection table B is carried out. It is impossible to install at the side), and it is impossible to separate from the connection table B even if the machine body 1 is translated forward. Thus, for example, as shown in FIG. 2, the arrow indicating the rotational direction of the device body 1 when the relay body A is provided is indicated as the "installation direction" and the relay body A is separated. The construction method of attaching and detaching the relay main body A by attaching the construction display part 14 which indicated the arrow which shows the rotation direction of the apparatus 1 in the "separation direction" to the right side of the apparatus 1, etc. It is desirable to make it easy to understand. In the state in which the relay body A is installed in the connection table B, there is a possibility that it is difficult to understand how to attach or detach the relay body A since the coupling structure such as the locking projection 5 is not exposed, but the construction display unit 23 In this way, it is possible to prevent the relay main body A from being attached or detached by a wrong method in advance, and not only to improve the efficiency of the detachable operation but also to prevent the damage of the relay main body A and the connecting table B.

In addition, in this embodiment, as shown in FIG. 2, in the right end part in the angled part between the back surface and the upper surface of the apparatus body 1, a recessed part and a convex part are provided in the left-right direction, The error prevention uneven part 15 is formed. On the other hand, Article 2 in which the Article 1 error prevention recesses and protrusions 15 are fitted to the connection table B in a portion corresponding to the Article 1 error prevention recesses and recesses 15 in the state where the relay main body A is installed. The error prevention uneven part 16 is formed. Thereby, for example, in the case of development in another system, the shapes of the first and second error preventing uneven portions 15 and 16 are set for each system, respectively, so that the system different from the connection table B of the present embodiment. Even if the relay main body A 'is installed, as shown in Fig. 8, since the Article 1 error prevention uneven portion 15' is not fitted to the Article 2 error prevention uneven portion 16, the machine body ( Intrusion into the mounting recess 11 of the angled part between the back surface and the upper surface of 1) is prohibited, and erroneous insertion between systems is prevented. In addition, since the first and second error preventing uneven portions 15 and 16 are always provided in the part which can be visually checked even when the relay body A is installed in the connecting table B, the first and second articles 2 Checking the error prevention uneven portions 15 and 16 visually shows whether or not an incorrect insertion has occurred.

On the upper surface of the device body 1, as shown in Fig. 9, a name plate 24 on which a user can record, for example, a relay number or the like is attached. The name plate 24 preferably extends so that a part of the name plate 24 is attached along the inner circumferential surface of the operation recess 20 so as to secure a relatively wide recordable area within a range that does not interfere with the operation of the manual lever 19. In FIG. 9, the extended portion is attached to the front inclined surface 22.

By the way, as shown in FIG. 9, the terminal cover 29 which covers the connection terminal 25 is provided in the site | part in which the connection terminal 25 was provided in the apparatus 1, in FIG. As shown, it consists of the plate-shaped slab 30 along the upper surface of the apparatus body 1, and the vertical lowering piece 31 extended downward from the leading edge of the slab 30, and is connected to the slab 30 with a connection terminal ( A terminal cover having a screw penetrating hole 32 for exposing the terminal screw 27 of 25 is formed, and a wire penetrating hole 33 through which a wire (not shown) can be inserted into the vertically lowered piece 31 ( 29) can be installed. On the left and right both edges of the cast piece 30 of the terminal cover 29, a pair of mounting projections 34 projecting in the left and right directions are formed. As the cover positioning part which positions the terminal cover 29 in the state in which this terminal cover 29 was installed in the apparatus body 1, as shown in FIG. 10, each side wall of the left-right direction of the apparatus body 1, Covering grooves 35 are formed on the opposite surfaces of the insulating wall 28, respectively, extending in the front-rear direction and opening forward. The terminal cover 29 is positioned between the side walls in the left and right directions of the device body 1 and the insulating wall 28 by inserting the mounting protrusion 34 into the cover groove 35 from the front. In the state where the terminal cover 29 is provided, the terminal screw 27 of the connecting terminal 25 can be turned through the screw through hole 32. On the other hand, when the terminal screw 27 does not need to be exposed, a terminal cover 29 'different from FIGS. 9 and 10 may be provided. As shown in FIG. 11, this terminal cover 29 'is a plate shape along the upper surface of the apparatus body 1, and is provided in the opposing surface of each side wall of the apparatus body 1 in the left-right direction, and the insulating wall 28. As shown in FIG. By the cover attachment recessed part 36 (refer FIG. 10) formed in the upper end part in the top, and the cover attachment protrusion 37 (refer FIG. 10) provided in front of the cover attachment recessed part 36, It is positioned between each side wall in the lateral direction and the insulating wall 28, respectively. That is, the cover mounting recess 36 and the cover mounting protrusion 37 function as a cover positioning portion for positioning the terminal cover 29 '.

In addition, as shown in FIG. 12, you may form the operation recessed part 20 between the both ends of the apparatus body 1 in the left-right direction so that the operation recessed part 20 may open in the left-right direction, and in this case, It is easier to operate the manual lever 19 than when the operation recess 20 is opened to one side in the left and right direction, and furthermore, it is noticed that the operating body 20 has the operation recess 20 even when the device body 1 is viewed from either side. As can be confirmed, identification with other relay bodies without the operation recess 20 is easy.

In addition, the relay device can be fixed to the shelf by providing the connecting mounting plate C provided with the relay device on a shelf (not shown) such as a control panel. In a state where the relay device is fixed to the shelf, the relay device is disposed with the upper left side and the lower right side downward in FIG. 5 so as to face one surface where the manual lever 19 in the relay main body A is exposed. .

According to the present invention, a relay main body is connected to a connecting table by first engaging the projection with the projection receiving surface, and then rotating the device body in the insertion direction of the terminal with the contact portion with the projection receiving surface of the projection being the point. It can be installed. That is, since the relay main body can be aligned with respect to the connecting rod just by bringing the engaging projections into contact with the projection receiving surface, the installation of the relay main body with respect to the connecting rod is simpler than in the conventional configuration. In addition, when the device body is rotated and the terminal is inserted into the connecting table by pressing the part away from the point as the station in the device body, the terminal serving as the operating point is larger than the force actually applied to the station point according to the principle of lever. The force is inserted into the splice. That is, there is an advantage that the terminal can be inserted with a relatively small force relative to the connecting table. When the relay main body is detached from the connecting table, the device body may be rotated in a direction opposite to that at the time of installation. In this case as well, the terminal can be removed from the connecting table with a relatively small force using the principle of lever. Moreover, since the locking projection which becomes a point of rotation is formed in one place, the relay main body is not provided in the opposite direction with respect to a connection table.

Claims (12)

A relay main body having an insertion terminal protruding from one surface of the apparatus body, and a connecting rod to which the terminal of the relay main body is inserted and connected in a state where the relay main body is detachably installed and the relay main body is installed; The relay main body protrudes from the other side of the apparatus body adjacent to one surface and the terminal in the surface where the terminal in the device body protrudes, and is provided on the projection receiving surface provided in the connection table when the terminal is inserted into and removed from the connection table. The relay device which has a latching process which becomes a point of a rotation of an apparatus body by a contact part with a protrusion receiving surface by engaging so that it may be caught. The relay device according to claim 1, wherein the terminal of the relay main body is provided in plural and arranged in a row, and the locking projection is arranged in line with the terminal in the device body. The concave portion according to claim 1 or 2, wherein the relay main body and the connecting rod are provided in plural kinds, and combinations are determined, respectively, and the relay main body and the connecting rod are fitted only when the combination is correct. And a pair of jaw error preventing irregularities having different arrangements of convex portions are provided on each of one surface of the device body facing the connection table and one surface of the connection table facing the device body. 4. The relay device according to claim 3, wherein the jaw error preventing uneven portion on the side of the device body is formed at a part that can be visually confirmed in a state where the relay main body is installed at the connecting table. 4. The relay device according to claim 3, wherein the jaw error preventing uneven portion on the side of the device body is formed around the locking projection. The said connecting rod has a holding piece in the position which pinches | interposes the said terminal between the said engaging piece in the surface which abuts against the said apparatus body in the state in which the said relay main body was installed, The holding piece of Claim 1 or 2 And a coupling projection protruding on one side of a portion of the over-body body in contact with the holding piece, and a coupling hole for engaging with the coupling projection on the other side. The said relay main body shows the arrow which shows the rotation direction of the said apparatus body at the time of installation in the said connection stand, and shows the rotation direction of the apparatus body at the time of separation from a connection stand. A relay device comprising a construction display unit in which an arrow is indicated, in a portion other than one surface of the apparatus body that faces the connecting table. The method according to claim 1 or 2, wherein the relay main body and the connecting table coupled to each other can be installed on a connecting mounting plate having a pair of mounting claws that are elastically held by inserting from both sides in the insertion direction of the terminal. Mounting holes to which the mounting claws of the connecting mounting plate are coupled are formed in each of the relay main body and the connecting rod, and the relay main body and the connecting rod are coupled to the mounting holes of the relay main body using a jig inserted into the mounting hole of the relay main body. The mounting claw is detached from the connecting mounting plate by removing the mounting claw from the mounting hole by resisting elasticity, and the relay main body has a guide groove for guiding the jig used for removing the mounting claw from the mounting hole into the mounting hole on the inner peripheral surface of the mounting hole. Relay device having a. 3. The relay body according to claim 1 or 2, wherein the relay main body is connected to a contact point and covers the connection terminal by being provided on a connection terminal exposed from a portion other than one surface of the device body that faces the connection table, and the device body. A terminal cover; The device includes a plurality of types of cover positioning parts for positioning a plurality of types of terminal covers having different shapes for each type. 3. The relay body according to claim 1 or 2, wherein the relay main body includes a manual lever which is operated to manually open and close a contact, and the manual lever is formed concave on one surface of the device body other than one surface facing the connecting rod. The relay device is exposed in the operation recess, and the operation recess has one side of the manual lever open. 3. The relay body according to claim 1 or 2, wherein the relay main body includes a manual lever which is operated to manually open and close a contact, and the manual lever is formed concave on one surface of the device body other than one surface facing the connecting rod. A relay device, wherein the operation recess is exposed in the operation recess and both sides of the manual lever are open. 11. The relay body according to claim 10, wherein the relay main body has a recordable name plate installed on the device body along one surface of the device recessed portion, wherein the name plate extends so that a portion thereof is provided along an inner circumferential surface of the operation recessed portion. Relay device characterized in that.

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