JP2002163971A - Rail mounting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rail mounting device wherein a loading direction of a slider to an instrument body can be made the same as an assembling direction of the instrument body itself. SOLUTION: A fitting protrusion 22 is protrudingly installed at one side of a fitting groove part 21 installed at a lower face of the instrument body 2 of an electric equipment, and a slider mounting part 4 is installed at a lower part side of a terminal insulating wall 3 of the other side. A slider insertion part 41 is formed at a lower part of the slider mounting part 4, and an engaging part 42 is formed at the upper part side. A through hole 52 is installed at the slider 5, and a rail locking part 53 is formed at an end part of the fitting groove part 21, and a pair of elastic arm pieces 55 at whose tip a slide-contact engagement part 54 is formed are protrudingly installed from both sides of the through hole 52. The through hole 52 covers the slider insertion part 41 from the lower face part, and the elastic arm pieces 55 is made to go along the side face of the slider mounting part 4 so that the slide-contact engagement part 54 is engaged with the engagement part 42, and the rail locking part 53 is protruded capable of advance and retreat in the engagement groove part 21 so that the rail 1 is locked.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rail mounting device for mounting an electric device on a rail having projecting pieces projecting outward from both sides in a longitudinal direction.

[0002]

2. Description of the Related Art Conventionally, as a rail mounting device for mounting an electric device on a rail having projecting pieces protruding outward along the longitudinal direction from both sides, a fitting groove portion in which the rail is inserted into a lower surface of a body of the electric device is known. A fitting projection for fitting one of the projecting pieces of the rail between the lower surface of the fitting groove and the lower surface of the fitting groove is provided on one side wall of the fitting groove, and the fitting protrusion is provided on the other side wall of the fitting groove in the fitting groove. There is a type in which a slider that protrudes and retracts and locks the other projecting piece of the rail is mounted (Japanese Patent Laid-Open No. 8-148860).

As shown in FIG. 7, the rail mounting device has a fitting groove 21 'into which a rail (not shown) is fitted on the lower surface of a body 2' of an electric device, and the fitting groove 21 '.
A fitting projection 22 'for fitting one of the projecting pieces of the rail between the lower surface of the fitting groove 21' and the fitting groove 2 'is formed on the other side wall of the fitting groove 21'.
A slider 5 'that protrudes into and retracts from the inside of the rail 1' and locks the other projecting piece of the rail is mounted. The slider 5 ′ is housed in a housing groove 23 ′ formed by communicating the other side wall of the fitting groove 21 ′ with the outer side surface of the housing 2 ′ and mounted on the housing 2 ′. A concave portion 24 'is formed on the inner wall of the', so that the cross-sectional shape of the slider 5 'is substantially the same as the cross-sectional shape of the storage groove 23', and is engaged with both end walls of the concave portion 24 'according to the movement of the slider 5' A projected portion 58 ′,
By providing the slider 5 'with a resilient piece 59' for resiliently pressing the protrusion 58 'on the inner wall of the recess 24', the slider 5 'is prevented from coming off the storage groove 23'.

[0004] The body 2 'constituting the rail mounting device as described above is divided into two bodies 2a', 2a.
a 'is assembled in the longitudinal direction (the direction of the arrow B in the figure) of the rail to be fitted into the fitting groove 21' by a fixing tool 2c '.

[0005] In the above rail mounting device,
When the slider 5 'is mounted on the body 2', the slider 5 'must be inserted along the lower surface of the body 2' in a direction perpendicular to the longitudinal direction of the rail (the direction of arrow A in the figure). Met. For this reason, when trying to automate the assembling process of the electric equipment, the assembling of the body 2 ′ itself requires the two bodies 2 in the longitudinal direction of the rail (the direction of arrow B) as described above.
a ′ is connected by a fixing tool 2c ′, and the device housed in the body 2 ′ is incorporated into the body 2 ′ in the longitudinal direction (similar to the assembly of the body 2 ′ itself). (Direction of arrow b), the operation direction of these operations is different from the direction (direction of arrow a) orthogonal to the longitudinal direction of the rail, which is the mounting direction of the slider 5 'to the body 2'. Direction, resulting in a problem that the workability of assembly is deteriorated.

Further, in this rail mounting device, a fitting groove portion into which a rail is fitted on the lower surface of the body 2 'so that the slider 5' can slide forward and backward along the lower surface of the body 2 '. Since a storage groove 23 'for storing the slider 5' is formed on the side of 21 ', a conductor (not shown) can be connected to a terminal in the housing 2' even from the lower surface side of the housing 2 '. Therefore, when an opening for connection is provided on the lower surface of the container 2 ′, the size of the storage groove 23 ′ is limited and the storage groove 23 ′ is limited.
However, there is a problem that the holding strength of the slider 5 'housed and held is reduced, or that the housing groove 23' cannot be formed.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to make the mounting direction of the slider to the body the same as the assembly direction of the body itself. A rail mounting device capable of connecting a conductor to a terminal connection portion provided on a body of an electric device from the lower surface side of the body of the electric device and firmly holding a slider for locking a rail to the body. Is to provide.

[0008]

In order to solve the above-mentioned problems, a rail mounting device according to the present invention is a container for electric equipment constructed by combining a body 2a and a cover 2b in a vertical direction (direction of arrow C). The lower surface of the body 2 is provided with a fitting groove 21 into which the rail 1 having the projecting piece 11 projecting outward from both sides along the longitudinal direction (the direction of arrow B) is fitted, and a rail is provided on one side of the fitting groove 21. 1 is provided with a fitting projection 22 into which the one overhanging piece 11a is fitted.
The terminal isolation wall 3 is provided on the side opposite to the side on which the first fitting projection 22 protrudes, the slider attachment portion 4 is provided below the terminal isolation wall 3, and the slider attachment portion 4 is provided below the slider attachment portion 4. Passage 41
And a rail 1 on the upper side of the slider mounting portion 4.
A long engaging portion 42 is formed in a direction perpendicular to the longitudinal direction of the slider 5 (in the direction of arrow A). A pair of resilient arm pieces 55 having a stop portion 53 and a sliding contact engagement portion 54 formed at the distal end thereof are protruded from both sides of the through hole 52 of the slider body 51, and the through hole 52 of the slider 5 is formed. Slider passing portion 41 of slider mounting portion 4
And the elastic arm piece 55 is slidably fitted from the lower surface side of the
4 is engaged with the engaging portion 42, and the slider 5 is attached to the slider attaching portion 4 so as to be slidable in a direction orthogonal to the longitudinal direction of the rail 1 (the direction of arrow A), and the rail locking portion 53 is attached. The rail 1 protrudes into the fitting groove 21 so as to be able to move forward and backward.
The other overhanging piece 11b is locked. With such a configuration, the fitting groove 2
1 and the other overhanging piece 11 of the rail 1 protruding into and out of the rail 1.
The slider 5 having the rail locking portion 53 for locking the slider b can be attached to the slider attaching portion 4 from the lower surface side of the body 2 upward, and the slider 5 can be attached to the body 2 of the body 5. Is set in the same vertical direction as the direction of assembling the body 2 itself and the direction of assembling the devices housed in the body 2, thereby facilitating the automation of the assembly process of the electric device.

It is preferable that connection openings 7 communicating with the terminal connection portions 6 isolated by the terminal isolation wall 3 and opening on the lower surface of the housing 2 are provided on both sides of the terminal isolation wall 3. With such a configuration, the slider 5 can be firmly held on the body 2 while the slider 2 is attached to the rail 1.
A conductor such as an electric wire can be connected to the terminal connection portion 6 isolated from the terminal isolation wall 3 of the housing 2 also from the lower surface side of the electric device to which is attached.

The sliding contact engaging portion 5 formed on the slider 5
When the rail 4 is engaged with the engaging portion 42 formed on the slider mounting portion 4, the rail locking portion 53 of the slider 5 projects into the fitting groove portion 21 to lock the rail 1 and the rail 5 of the slider 5 The sliding contact engaging portion 54 is provided with a protrusion 56 and the engaging portion 42 is provided with a protrusion 56 so that the locking portion 53 does not protrude into the fitting groove portion 21 and keeps the state where the locking of the rail 1 is released. It is preferable to provide a ridge 43 that engages with the ridge. With such a configuration, when the body 2 is fitted into the fitting groove 21, the rail locking portion 53 of the slider 5 is engaged with the fitting groove 2.
1 can be held, and the rail 1 fitted in the fitting groove 21 of the body 2 can be held by the rail locking portion 53 of the slider 5. It is possible to prevent the slider 5 that locks the rail 1 from being inadvertently released and the rail 1 from falling off from the body 2, and when attaching the body 2 to the rail 1, the rail locking portion There is no need to fit the rail 1 into the fitting groove 21 of the body 2 while pulling the slider 5 with a finger or the like so that the 53 does not project into the fitting groove 21.

Further, the tip of a tool such as a screwdriver is inserted into the end of the slider 5 opposite to the side where the rail locking portion 53 is provided, so that the slider 5 can be slidably moved into and out of the fitting groove 21. Preferably, a tool insertion hole 57 is provided. With such a configuration, a tool such as a driver can be inserted into a tool in a state where the rail locking portion 53 of the slider 5 projects into the fitting groove portion 21 and locks the other projecting piece 11b of the rail 1. The slider 5 is retracted by inserting the tool into the hole 57 to move the slider 5 to release the locking of the rail 1 by the rail locking portion 53 of the slider 5 or a driver or the like in a state where the locking of the rail 1 is released. By inserting the tool into the tool insertion hole 57 and moving the tool to move the slider 5 forward, the rail 1 can be locked by the rail locking portion 53 of the slider 5, and the fitting groove portion of the body 2 can be locked. This facilitates the work of inserting and removing the rail 1 from the rail 21.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the accompanying drawings.

First, the rail 1 to which the rail mounting apparatus of the present invention is applied has a longitudinal direction (arrows in the figure) from the distal end edges of both legs of the rail 1 main body 12 formed in a substantially U-shaped cross section as shown in FIG. (Hereinafter, referred to as direction b) in the direction of (b). Is a so-called DIN rail 1 on which electric devices are fixedly arranged. The rail mounting device is for removably fixing the electric device to the rail 1.

As shown in FIG. 1 and FIG. 2, the electric equipment detachably fixed to the rail 1 has two terminal connection parts 6 on both sides of a body 2 made of an insulating material such as synthetic resin. In order to avoid a short circuit between the two terminal connection portions 6 provided on the same side portion, a terminal isolation wall 3 for electrically isolating between the terminal connection portions 6 on both side portions of the housing 2 is provided. It is. In addition, as for the electric equipment, there are various purposes and applications including a circuit breaker for protecting a circuit by forcibly opening a contact portion when an excessive current flows in a main circuit in which the contact portion is inserted. However, the purpose of the present invention is to
The application is not particularly limited, and corresponds to an electric device having a terminal isolation wall formed on at least one side of a body.

The housing 2 of the electric equipment is composed of a body 2a and a cover 2b which are divided into two parts in the vertical direction (the direction of arrow C in the figure, hereinafter referred to as direction C). (Not shown) is covered with the cover 2b from above, and the connecting screw 2c is screwed from above to connect the body 2a and the cover 2b. In addition, as for the operation of incorporating the devices housed in the case 2, the devices are incorporated into the body 2a from above, and after all the devices are incorporated, the cover 2b is covered from above.

On the lower surface of the body 2, a fitting groove 21 into which the rail 1 is fitted is formed in the longitudinal direction B of the rail 1.
On one side of the fitting groove 21, a fitting protrusion 22 for fitting the one extension piece 11 a of the rail 1 is provided so as to protrude between the fitting groove 21 and the lower surface of the fitting groove 21. Further, a slider attachment portion 4 to which a slider 5 described later is attached is formed below the terminal isolation wall 3 on the other side of the fitting groove 21.

The slider mounting portion 4 has a slider 5
A slider passing portion 41 having a rectangular shape when viewed from below is inserted into the through hole 52 of the rail 1, and an engaging portion 42 engaged with a sliding contact engaging portion 54 of the slider 5 is formed on the upper portion with the longitudinal direction of the rail 1. The direction perpendicular to the direction (the direction of arrow A in the figure, hereinafter, referred to as direction A) is formed as the longitudinal direction.

The slider passage portion 41 is located below the lower surface of the fitting groove portion 21 and locks and holds the rail 1 fitted in the fitting groove portion 21 with the slider 5 from the lower surface side.

The engaging portion 42 engaged with the sliding contact engaging portion 54 of the slider 5 is oriented in a direction A perpendicular to the longitudinal direction of the rail 1 so that the slider 5 projects into the fitting groove 21 so as to be able to advance and retreat. In order to make the slider 5 movable, the slider 5 is formed as a step having the above-mentioned direction A as a longitudinal direction. Further, the engaging portion 42
When the sliding contact engagement portion 54 of the slider 5 is engaged with the engagement portion 42 so that the slider 5 is movable in the direction A in which the slider 5 advances and retreats into the insertion groove 21, the slider 5 is moved into the insertion groove 21.
A state in which the slider 5 is advanced in the direction (in the direction of arrow a ′, hereinafter, referred to as direction a ′) and protrudes into the fitting groove 21 and the slider 5 is outward (in the direction of arrow a, hereinafter, direction a ″). The ridges 43 are provided so as to hold the state in which they do not protrude into the fitting groove 21 by retreating in the vertical direction with C as the longitudinal direction.

On both sides of the terminal isolation wall 3 on the side of the body 2, terminal screws 6a and terminal fittings 6b are provided as a pair of terminal connection portions 6 isolated by the terminal isolation wall 3.
The terminal fitting 6b is connected to a device housed inside the housing 2, and a conductor (not shown) such as an external electric wire is sandwiched between the terminal fittings 6b by terminal screws 6a and housed inside. Electrical connection between the connected device and an external conductor. Further, a connection opening 7 is provided below the pair of terminal connection portions 6, passing through both sides of the terminal isolation wall 3, and opening to the lower surface and side surfaces of the housing 2. In this manner, as shown in FIG. 6, the terminal screw 6a is screwed in from the lower surface side, and a conductor is inserted into the connection opening 7 from the lower surface side or the side surface of the body 2 to be inserted into the terminal connection portion 6. By making the connection, the conductor can be connected to the terminal from the lower surface side or the side surface of the container 2 as described above even when the container 2 is attached to the rail 1.

The slider 5 is mainly composed of a slider main body 51 having a substantially rectangular frame shape and a through hole through which a slider through portion 41 of a slider mounting portion 4 provided on the lower surface side of the terminal isolation wall 3 is inserted. 52 is formed in the main body.

As shown in FIG. 4, the through hole 52 has a rectangular shape as viewed from below, and the length T1 in the direction in which the slider 5 advances and retreats into the fitting groove portion 21 is determined by the length of the slider passage portion of the slider mounting portion 4. The length T2 of the through hole 52, which is longer than the length t1 of the through hole 41 in the same direction and is orthogonal to the above-described direction, is substantially the same as the length t2 of the slider passing portion 41 in the same direction. When the slider 5 is attached to the slider mounting portion 4 by covering the slider 5 with the slider 5, the slider 5 can be moved forward and backward into the fitting groove 21 (movable in the direction of arrow A).

From both sides of the through hole 52 of the slider main body 51, an elastic arm piece 55 for elastically holding the slider attaching portion 4 is protruded upward, and the upper end of the elastic arm piece 55 has a slider attaching portion 4 formed thereon. The sliding contact engagement portion 54 locked by the engagement portion 42 is provided. The elastic arm piece 55 and the sliding contact engaging portion 54 allow the through hole 52 of the slider 5 to
When the slider 5 is fitted from below, the elastic arm 55 sandwiches the slider mounting portion 4, and when the slider 5 is further moved upward, the sliding contact engaging portion 54 provided at the upper end of the elastic arm 55 is provided. The slider 5 is locked by an engaging portion 42 provided on an upper portion of the slider mounting portion 4 so that the slider 5 does not fall down. Slider engagement portion 54 of slider 5 and slider attachment portion 4
Is formed as a step having a longitudinal direction extending in and out of the fitting groove 21, so that the sliding contact engaging portion 54 of the slider 5 is attached to the engaging portion 42 of the slider attaching portion 4. In the locked state, the slider 5 can be moved in the direction A in which the slider 5 advances and retreats into the fitting groove 21.

At the end of the slider body 51 on the side of the fitting groove 21, a rail locking portion 53 for locking the other projecting piece 11b of the rail 1 is formed. By moving the rail engaging portion 53 forward into the fitting groove portion 21 to advance the rail engaging portion 53, the other protruding piece 11b of the rail 1 fitted into the fitting groove portion 21 can be moved to the rail engaging portion 5.
3 locks from the lower surface side.

The sliding contact engagement portion 54 of the slider 5
A protrusion 56 having a vertical direction C as a longitudinal direction is provided.
The protrusion 56 is described above when the sliding contact engagement portion 54 is engaged with the engagement portion 42 of the slider attachment portion 4 and the slider 5 is movable in the direction A in which the slider 5 advances and retreats into the fitting groove portion 21. The engagement with the crests 43 of the slider attachment portion 4 prevents the slider 5 from moving in the direction of arrow A by itself. 4 can be maintained in a state in which the slider 4 protrudes into the fitting groove 21 and a state in which the slider 5 retreats outward and the slider mounting portion 4 does not project in the fitting groove 21.

A tool such as a screwdriver is inserted into the end of the slider body 51 opposite to the side on which the rail locking portion 53 is provided to move the slider 5 in the direction of advancing and retracting into the fitting groove 21. A tool insertion hole 57 is provided, and the slider 5
When the rail locking portion 53 projects into the fitting groove portion 21 and locks the other extension piece 11b of the rail 1, a tool such as a driver is inserted into the tool insertion hole 57 and the slider is moved outward. 5 is retracted to release the locking of the rail 1 by the rail locking portion 53 of the slider 5, or a tool such as a driver is inserted into the tool insertion hole 57 in a state where the locking of the rail 1 is released. The slider 5 is advanced in the direction a ′ of the fitting groove portion 21, and the rail 1 is moved to the rail locking portion 53 of the slider 5.
Or to be locked.

In the slider 5 and the housing 2 configured as described above, the through hole 52 of the slider 5 is formed in the slider passage 41 of the slider attachment portion 4 provided on the terminal isolation wall 3 of the housing 2 from the lower surface side. The slider 5 is provided with a sliding contact engaging portion 54 formed at the tip of the elastic arm 55 so that the elastic arm 55 of the slider 5 extends along the slider attaching portion 4.
2, the slider 5 is movably mounted in the direction A perpendicular to the longitudinal direction of the rail 1 so that the rail locking portion 53 protrudes into and out of the fitting groove so as to assemble the rail mounting device. be able to. In addition, the slider attachment portion 4 and the elastic arm piece 55 along the slider attachment portion 4 are flush with each other so that no step is formed in the connection opening 7. The work of connecting to the connection section 6 is facilitated.

Next, a method of attaching the body 2 of the electric equipment to the rail 1 with the rail attaching device of the present embodiment will be described. First, the rail 1 is inserted into the fitting groove 21 such that one projecting piece 11 a of the rail 1 is inserted between the fitting protrusion 22 and the lower surface of the fitting groove 21. At this time, the slider 5 is pulled out outward, and the rail locking portion 53 of the slider 5 does not protrude into the fitting groove 21.
From here, by pushing the slider 5 in the direction a ′ of the fitting groove 21, the rail locking portion 53 of the slider 5 is protruded into the fitting groove 21, and the rail locking portion 53 and the fitting groove 2
The other protruding piece 11b of the rail 1 is locked between the lower surface of the rail 1 and the rail 1 and the rail 1 is fixed to the body 2. At this time, by inserting a tool such as a screwdriver into the tool insertion hole 57 of the slider 5 and moving the tool in the direction of the arrow groove 21 ′, the slider 5 can be pushed in the direction of the groove 21 ′.
When the slider 5 is pushed into the fitting groove 21 in the direction A ′, the slider 5 is pushed from the state shown in FIG. 4 so that the protrusion 56 of the slider 5 gets over the crest 43 of the slider attachment portion 4, and the protrusion 56 The locking of the rail 1 is maintained by engaging the ridges 43 with the ridges 43 as shown in FIG. Also, in this state, even if a force is applied to pull the slider 5 outwardly, the protrusion 56 rides over the mountain 43 and the rail 1 by the rail locking portion 53 unless a certain amount of force is applied. Is prevented from being released, so that the slider 5 is prevented from being inadvertently released and the rail 1 falling off from the body 2.

When the body 2 is to be removed from the rail 1, the slider 5 is removed from the state shown in FIG. 5 with such a force that the protrusion 56 of the slider 5 gets over the crest 43 of the slider attachment portion 4. And the rail 1 is released from the fitting groove 21 to release the rail 1 from the rail locking portion 53 which has locked the other projecting piece 11 b of the rail 1.
The state in which the locking of the rail 1 is released is maintained by engaging the ridge 6 with the ridge 43 as shown in FIG. By maintaining this state, there is no need to fit the rail 1 into the fitting groove 21 of the body 2 while pulling the slider 5 outward with a finger or the like the next time the body 2 is mounted on the rail 1.

According to the above configuration, the slider 5 is attached to the slider mounting portion 4 from the direction of the fitting groove 21 and the lower surface of the body 2.
So that the slider 5 can be attached to the slider attachment portion 4 in the same vertical direction as the assembling direction of the body 2 itself and the assembling direction of the equipment housed in the body 2. It becomes easy to automate the assembly process of the electric equipment.
Further, since the sliding contact engaging portion 54 of the slider 5 and the engaging portion 42 of the slider attaching portion 4 formed in the direction A perpendicular to the longitudinal direction of the rail 1 engage, the slider 5 is attached to the slider attaching portion 4. The slider 5 can protrude freely into and out of the fitting groove 21 while preventing the slider 5 from dropping off. In addition, a connection opening 7 opening the lower surface side of the body 2 and communicating with the terminal connection portion 6.
Is provided, a conductor such as an electric wire can be connected to the terminal connection portion 6 from the lower surface side of the body 2 even when the body 2 is attached to the rail 1. Further, a projection 56 is provided on the sliding contact engagement portion 54 of the slider 5 and the engagement portion 42 of the slider attachment portion 4 is provided.
Is provided with the crests 43, so that when the body 2 is fitted into the fitting groove 21, the rail locking portion 53 of the slider 5 is fitted with the fitting groove 2
1 can be held, and the rail 1 fitted in the fitting groove 21 of the body 2 can be held by the rail locking portion 53 of the slider 5. Further, a tool insert such as a screwdriver is inserted into the end of the slider 5 opposite to the side on which the rail locking portion 53 is provided so that the slider 5 can slide into the fitting groove 21 so as to be able to advance and retreat. Since the hole 57 is provided, when the slider 5 is moved, a tool such as a driver is inserted into the tool insertion hole 57 and the slider 5 can be moved by moving the tool.

[0031]

As described above, according to the first aspect of the present invention, the body and the cover are vertically combined on both sides of the lower surface of the body of the electric device along the longitudinal direction. A fitting groove into which a rail having a projecting piece projecting outward is fitted, and a fitting projection into which one of the projecting pieces of the rail is fitted is protruded on one side of the fitting groove to provide a body. A terminal isolation wall is provided on the side opposite to the side on which the fitting protrusion of the fitting groove portion protrudes, and a slider attachment portion is provided below the terminal isolation wall, and a slider passage portion is provided below the slider attachment portion. The slider is formed with a long engagement portion in the direction perpendicular to the longitudinal direction of the rail on the upper side of the slider attachment portion, a through hole is provided in the slider body of the slider, and the rail engaging portion is provided at the end of the slider body on the fitting groove side. The elasticity of forming the stop part and forming the sliding contact engaging part at the tip A pair of elastic arm pieces projecting from both sides of the through hole of the slider body, and the through hole of the slider is slidably fitted into the slider through portion of the slider attaching portion from the lower surface side, and the elastic arm piece is attached to the slider. A sliding contact engagement portion is slidably engaged with the engagement portion along a side surface of the portion, and a slider is attached to the slider attachment portion so as to be slidable in a direction orthogonal to the longitudinal direction of the rail. Since the stop portion protrudes into the fitting groove so as to be able to move forward and backward and locks the other protruding piece of the rail, the rail locking portion which protrudes into the fitting groove so as to freely move back and forth and locks the other protruding piece of the rail is provided. The formed slider can be attached to the slider attaching portion from the lower surface side of the body upward, and the mounting direction of the slider to the body is set in the assembly direction of the body itself and stored in the body. Vertical direction that is the same as the In which easily automated electrical equipment assembly process.

According to a second aspect of the present invention, in addition to the effects of the first aspect of the present invention, there is provided a connection for communicating with a terminal connecting portion separated by a terminal separating wall and opening on a lower surface of a body. Since the openings are provided on both sides of the terminal isolation wall, the slider can be firmly held on the body, but the terminal isolation wall of the body can also be seen from the lower side of the electric equipment with the body attached to the rail. It is possible to connect a conductor such as an electric wire to the terminal connection part isolated from the above.

According to a third aspect of the present invention, in addition to the effects of the first or second aspect of the present invention, the sliding contact engaging portion formed on the slider is provided on the engaging portion formed on the slider attaching portion. In the engaged state, the rail locking portion of the slider protrudes into the fitting groove and locks the rail, and the rail locking portion of the slider does not protrude into the fitting groove and the rail is unlocked. The protrusion is provided on the sliding contact engagement portion so as to hold the protrusion, and the crest is provided on the engagement portion to engage with the protrusion. Therefore, when the body is fitted into the fitting groove, the rail locking portion of the slider is provided. Can be maintained in a state in which the rail does not protrude into the fitting groove, and a state in which the rail fitted in the fitting groove of the body is locked by the rail locking portion of the slider. The stopped slider is inadvertently released and Can be prevented from falling off, and when mounting the body to the rail, the rail is fitted into the fitting groove of the body while pulling the slider with a finger or the like so that the rail locking portion does not protrude into the fitting groove. This eliminates the need.

According to a fourth aspect of the present invention, in addition to the effects of the first to third aspects of the present invention, the slider is provided at the end opposite to the side where the rail locking portion is provided. ,
A tool insertion hole is provided to insert the tip of a tool such as a screwdriver so that the slider can slide back and forth into the fitting groove, so that the rail locking portion of the slider protrudes into the fitting groove and extends the other side of the rail. In the state that the piece is locked, insert a tool such as a driver into the tool insertion hole and move the tool to retract the slider and release the rail lock by the rail locking portion of the slider, or When the rail is unlocked, a tool such as a driver can be inserted into the tool insertion hole, the tool can be moved to move the slider forward, and the rail can be locked by the rail locking portion of the slider. This facilitates the work of inserting and removing the rail from the fitting groove of the body.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention as viewed from a lower surface side.

FIG. 2 is a perspective view of a body of the electric device mounted on a rail in the embodiment, viewed from the upper surface side.

FIG. 3 is a sectional view of a main part of the embodiment.

FIG. 4 shows a state in which the slider of the above embodiment is attached to a slider mounting portion of a body and does not hold a rail;
(A) is a bottom view of a main part, and (b) is a cross-sectional view of the main part.

FIG. 5 shows a state in which the slider of the above embodiment is attached to a slider mounting portion of a body to hold a rail;
(A) is a bottom view of a main part, and (b) is a cross-sectional view of the main part.

FIG. 6 is an exploded perspective view of another embodiment of the present invention as viewed from below.

FIG. 7 is an exploded perspective view of a conventional example.

[Description of Signs] 1 Rail 11 Overhanging piece 11a One overhanging piece 11b The other overhanging piece 2 Body 2a Body 2b Cover 21 Fitting groove 22 Fitting protrusion 3 Terminal isolation wall 4 Slider attaching part 41 Slider passing part 42 Engagement part 43 Crest part 5 Slider 51 Slider body 52 Through hole 53 Rail locking part 54 Sliding contact engagement part 55 Elastic arm piece 56 Projection 57 Tool insertion hole 6 Terminal connection part 7 Connection opening

Continued on the front page F term (reference) 4E353 AA17 AA19 AA21 BB01 BB06 CC01 CC12 CC13 CC16 CC32 CC33 DD05 DD08 DD11 DR03 DR13 DR22 DR29 DR36 DR44 DR53 DR57 GG09 GG16 GG21 5G030 BA05 BB01 XX19 YY08

Claims (4)

[Claims] 1. A fitting groove in which a rail having a projecting piece extending outward from both sides in a longitudinal direction is fitted on a lower surface of a body of an electric device configured by vertically combining a body and a cover. A fitting projection into which one of the projecting pieces of the rail is fitted protrudes from one side of the fitting groove, and a side opposite to the side where the fitting protrusion of the fitting groove of the body protrudes. A terminal attachment wall, a slider attachment portion is provided below the terminal isolation wall, a slider passage portion is formed below the slider attachment portion, and an upper side of the slider attachment portion is orthogonal to the longitudinal direction of the rail. A resilient structure in which a long engaging portion is formed in the direction, a through hole is provided in the slider body of the slider, a rail locking portion is formed at an end of the slider body on the fitting groove side, and a sliding contact engaging portion is formed at the tip A pair of elastic arm pieces having protrusions from both sides of the through hole of the slider body. The slider through-hole is slidably fitted into the slider through-hole of the slider mounting portion from the lower surface side, and the elastic arm piece is made to slide along the side surface of the slider mounting portion, and the sliding contact engaging portion is engaged. The slider is slidably engaged with the slider mounting portion so as to be slidable in a direction perpendicular to the longitudinal direction of the rail, and the rail locking portion is protruded into and retracted into the fitting groove so that the other side of the rail can be extended. A rail mounting device characterized by locking an overhanging piece. 2. The rail according to claim 1, wherein connection openings are provided on both sides of the terminal isolation wall so as to communicate with terminal connection portions isolated by the terminal isolation wall and open on the lower surface of the housing. Mounting device. 3. In a state where the sliding contact engagement portion formed on the slider is engaged with the engagement portion formed on the slider attachment portion,
The slider is held so that the rail locking portion of the slider protrudes into the fitting groove and locks the rail, and the rail locking portion of the slider does not protrude into the fitting groove and holds the rail unlocked. 2. The contact portion according to claim 1, wherein the contact portion has a projection, and the engagement portion has a peak portion which engages with the projection.
Or the rail mounting device according to 2. 4. A tool insertion hole for inserting a tip of a tool such as a screwdriver into an end of the slider opposite to the side on which the rail locking portion is provided, so that the slider can be slidably moved into and out of the fitting groove. The rail mounting device according to any one of claims 1 to 3, further comprising: