JP2013215031A - Device for mounting protective device on din rail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem of difficulty in removing a protective device from a DIN rail with a conventional device for mounting a protective device on a DIN rail.SOLUTION: In the device for mounting a protective device on a DIN rail, an annular locking part e2 formed on one end of U-shaped main body e1 of a spring member E is inserted into a spring support pin s6a of a support part s6 formed on a base unit S2 composing a protective device S; and a hook-like part e3 formed on the other end of the U-shaped main body e1 of the spring member E is locked in a spring support hole h3c bored in a support part h3 composing an operation member H, thereby preventing an operation member H from moving upward, in an unlocked state in which the protective device S can be removed from the DIN rail R. A protective device S can be removed from a DIN rail R easily and quickly without manipulating an operation member H.

Description

  The present invention relates to a device for attaching a protector comprising a surge protection unit and a base unit to a DIN rail.

  In a device for mounting a protector on a DIN rail, a fixed locking projection fixedly formed on one side wall of a fitting recess to which a DIN rail of a base unit constituting the protector is fitted And a movable locking member that can move in the approaching / separating direction with respect to the fixed locking projection on the other side wall of the opposite side wall, and the vertical locking portion of the upper end of the DIN rail, After locking to the fixed locking projection, and then moving the moving locking member in the direction away from the fixed locking projection, the DIN rail is fitted into the fitting recess, and then the movement locking Patent Document 1 discloses an apparatus for attaching a protector to a DIN rail, which is configured to attach the protector to the DIN rail by moving the member in the direction of the fixed locking protrusion.

WO 2007/093572 A1

  In the device for attaching a protector to a DIN rail described in Patent Document 1, when removing the protector from the DIN rail, the moving locking member is moved in a direction away from the fixed locking projection. However, during removal of the protector, the operator must hold the moving locking member with one hand so that the moving locking member does not approach the fixed locking projection. First, the protector must be removed from the DIN rail with the other hand. Therefore, there was a problem that workability of the work for removing the protector from the DIN rail was poor.

  An object of the present invention is to solve the problems of the above-described conventional device for attaching a protector to a DIN rail.

  In order to achieve the above-described object, the present invention provides a device for mounting a protector on a DIN rail. First, a spring support pin of a support piece s6 formed on a base unit S2 constituting the protector S. An annular locking portion e2 formed at one end of the U-shaped main body portion e1 of the spring member E is inserted into s6a, and a spring support hole h3c formed in the support piece h3 constituting the operation member H is inserted into s6a. The hook-shaped part e3 formed at the other end of the U-shaped main body part e1 of the spring member E is locked, and in the locked state of the protector S and the DIN rail R, the elastic force of the spring member E The operation member H is configured not to move downward, and the operation member H is configured not to move upward in the detachable unlocked state of the protector S from the DIN rail R. Cage When the protector S is removed from the DIN rail R, the operation member H is prevented from moving upward. Second, a guide piece h4 formed on the operation member H is provided. Is configured to be inserted into the guide recess s7c of the engaging portion s7 formed in the base unit S2 of the protector S.

  Since this invention has the structure mentioned above, there can exist the effect described below.

  As described above, in the apparatus for attaching the protector to the DIN rail, the U-shaped main body e1 of the spring member E is attached to the spring support pin s6a of the support piece s6 formed in the base unit S2 constituting the protector S. An annular locking portion e2 formed at one end of the U-shaped main body e1 of the spring member E is inserted into a spring support hole h3c formed in the support piece h3 constituting the operation member H. A hook-like portion e3 formed at one end is locked, and the operation member H is configured not to move downward due to the elastic force of the spring member E when the protector S and the DIN rail R are locked. In the unlocked state in which the protector S is removable from the DIN rail R, the operation member H is configured not to move upward, and the protector S is removed from the DIN rail R. Since the operation member H is prevented from moving upward during the removal work, the work for removing the protector S from the DIN rail R can be easily and quickly performed. The workability of removing the protector S from the rail R is improved.

  Since the guide piece h4 formed on the operating member H is configured to be inserted into the guide recess s7c of the engaging portion s7 formed on the base unit S2 of the protector S, the operating member H And it can be moved stably.

FIG. 1 is a perspective view of a device for attaching a protector of the present invention to a DIN rail. FIG. 2 is an exploded perspective view of the protector of the present invention. FIG. 3 is a perspective view showing a state in which the protector of the present invention is detached from the DIN rail. FIG. 4 is an exploded perspective view of the base unit, the spring member, and the operation member of the protector of the present invention. FIG. 5 is a partial vertical sectional view along the longitudinal direction of the base unit of the protector of the present invention. FIG. 6 is a perspective view of the operation member of the present invention. FIG. 7 is also a perspective view of the operation member of the present invention. FIG. 8 is a front view of the spring member of the present invention. FIG. 9 is a partial vertical cross-sectional view along the longitudinal direction of the base unit constituting the protector of the present invention. FIG. 10 is a perspective view including a partial cross section in a state where the spring member and the operation member are attached to the protector of the present invention. FIG. 11 is a partial vertical sectional view of a state in which the protector is attached to the DIN rail. FIG. 12 is also a partial vertical sectional view showing a state where the protector is attached to the DIN rail.

  Examples of the present invention will be described below. However, the present invention is not limited to the examples as long as the gist of the present invention is not exceeded.

  First, the overall configuration of a device for attaching the protector S to the DIN rail R will be described with reference to FIGS.

  The protector S includes a surge protection unit S1 and a base unit S2 having a fitting recess S2 'into which the surge protection unit S1 is fitted. The DIN rail R has a rail main body r1 having a substantially C-shaped cross section perpendicular to the longitudinal direction. The rail main body r1 is formed from the vertical portion r1a and the upper end of the vertical portion r1a in the horizontal direction. It has an upper horizontal portion r1b that extends and a lower horizontal portion r1c that extends in the horizontal direction from the lower end of the vertical portion r1a. Further, an upper vertical locking portion r2 perpendicular to the upper horizontal portion r1b is formed at the tip of the upper horizontal portion r1b of the rail body r1, and further, at the tip of the lower horizontal portion r1c of the rail body r1, A lower vertical locking portion r3 perpendicular to the lower horizontal portion r1c is formed. The upper vertical locking part r2 and the lower vertical locking part r3 extend so as to be separated from each other.

  As shown in FIG. 2, the base unit S2 constituting the protector S includes a vertical part s1, and an upper horizontal part s2 extending in the horizontal direction from the upper part of the vertical part s1, as is well known. A lower horizontal portion s3 extending in the horizontal direction from the lower portion of the vertical portion s1, and the surge protection unit S1 includes the vertical portion s1 and the pair of opposed upper horizontal portion s2 and lower horizontal portion s3. A fitting recess S2 ′ to be fitted is formed. In addition, a recess s1b is formed at the center of a side surface (hereinafter simply referred to as a fitting recess side surface) s1a of the vertical portion s1 located on the fitting recess S2 ′ side, and the surge protection unit S1 is fitted. The fitting convex portion s4 projecting from the central portion of the side surface located on the side of the combined concave portion S2 ′ is fitted into the concave portion s1b.

  As shown in FIG. 2, the side surface (hereinafter simply referred to as the outer side surface) s1c of the vertical portion s1 located outside the fitting recess S2 ′ has an outer side located on the upper horizontal portion s2 side. By removing the outer side surface s1c while leaving the side surface s1c, a step portion s5 composed of the upper end horizontal surface s5a and the vertical surface s5b is formed. A fixed locking projection s5c is formed on the upper horizontal surface s5a forming the stepped portion s5 so as to form a gap in which the upper vertical locking portion r2 of the DIN rail R can be inserted between the vertical surface s5b. ing.

  As shown in FIG. 4, a slit G is formed along the longitudinal direction of the vertical surface s5b at the center of the lower end region of the vertical surface s5b forming the stepped portion s5. In this embodiment, the slit G is formed by the wide slit g1 and the narrow slit g2, but may be formed with the same width.

  As shown in FIG. 4, a support piece s6 perpendicular to the back surface protrudes from the back surface of the vertical surface s5b where the center portion of the slit G is located, and a spring support is provided at the tip of the support piece s6. A pin s6a is projected.

  In the lower end region of the vertical surface s5b forming the stepped portion s5, a total of four engaging portions s7 are formed along the slit G, two on each side of the slit G. The engaging portion s7 is formed of a vertical piece s7a perpendicular to the vertical surface s5b, and a parallel piece s7b extending in a direction away from the slit G from the upper end of the vertical piece s7a. The two engaging portions s7 formed on each side of the slit G are formed symmetrically along the longitudinal center line of the vertical surface s5b. A guide recess s7c is formed by the vertical piece s7a, the parallel piece s7b, and the vertical surface s5b. Note that two engaging portions s7 may be integrally formed on both sides of the slit G.

  Next, the operation member H is demonstrated using FIG.6 and FIG.7.

  The operation member H is formed with a flat plate portion h1 and opposed long side wall portions h2 vertically extending from the opposed long sides h1a of the flat plate portion h1, and a central portion of the flat plate portion h1. Is formed with a support piece h3 composed of a horizontal portion h3a perpendicular to the flat plate portion h1 and extending in the direction of the long side wall portion h2 and a vertical portion h3b perpendicular to the horizontal portion h3a and extending upward. A spring support hole h3c is formed in the vertical portion h3b.

  A guide piece h4 that is perpendicular to the long side wall portion h2 and extends in a direction approaching each other is formed at the tip of the opposing long side wall portion h2. In the present embodiment, there is shown an example in which two guide pieces h4 are formed at predetermined intervals for each long side wall portion h2, but the two guide pieces h4 are continuously connected. And may be integrally formed.

  At one end of the long side wall portion h2, a locking projection h2a is formed so as to protrude from one short side h1b of the opposing short side h1b of the flat plate portion h1. In addition, an inclined portion h2b is formed by deleting a corner located on the guide piece h4 side of the locking projection h2a, and a corner of the locking projection h2a opposite to the inclined portion h2b is deleted. By doing so, the guide inclined part h2c is formed. In addition, h5 is a window part formed in the flat plate part h1 in order to form the support piece h3 mentioned above.

  A grip portion h6 is formed on the other short side h1b of the opposing short side h1b. The handle portion h6 extends in the direction of the guide piece h4 from the upper vertical portion h6a extending from the flat plate portion h1 and the lower end of the upper vertical portion h6a formed near both ends of the other short side h1b. A horizontal portion h6b, a lower vertical portion h6c extending downward from the tip of the horizontal portion h6b, and a bridging portion h6d connecting the lower vertical portion h6c are formed. A window portion h6e into which a tip portion such as a fingernail or an operating rod can be inserted is formed.

  Next, the wire-like spring member E will be described with reference to FIG.

  The spring member E includes a substantially U-shaped main body (hereinafter simply referred to as a U-shaped main body) e1 and an annular lock formed in an annular shape outward from one end of the U-shaped main body e1. A part e2 and a hook-like part e3 formed in an arc shape from the other end of the U-shaped main body part e1 toward the outside are formed.

  Next, a state in which the protector S, the spring member E, and the operation member H are assembled will be described with reference to FIGS. 9 and 10.

  An annular locking portion e2 formed at one end of the U-shaped main body e1 of the spring member E projects from a support piece s6 formed on the back surface of the vertical surface s5b of the base unit S2 constituting the protector S. The hook-like part e3 formed on the other end of the U-shaped body part e1 of the spring member E is inserted into the spring support pin s6a and the vertical part h3b of the support piece h3 constituting the operation member H. It is locked in the provided spring support hole h3c. In this way, when the base unit S2 and the operating member H are connected by the spring member E, the guide piece h4 of the operating member H is inserted into the guide recess s7c of the base unit S2, A part of the spring member E is inserted into the slit G of the base unit S2.

  As described above, when the base unit S2, the spring member E, and the operation member H are assembled, the inclination formed on the locking protrusion h2a of the operation member H as shown in FIG. A lower gap V1 into which the lower vertical locking portion r3 of the DIN rail R is inserted is formed between the portion h2b and the vertical surface s5b of the base unit S2. Further, an upper gap V2 into which the upper vertical locking portion r2 of the DIN rail R is inserted is formed between the fixed locking protrusion s5c suspended from the upper end horizontal surface s5a of the base unit S2 and the vertical surface s5b. Will be.

  Further, in a state where the protector S is not attached to the DIN rail R, as shown in FIGS. 9 and 10, the engagement between the fixed locking projection s 5 c of the base unit S 2 and the operation member H is as follows. The distance D1 with the stop projection piece h2a is shorter than the height D2 of the DIN rail R (the distance from the upper end of the upper vertical locking portion r2 of the rail body r1 to the lower end of the lower vertical locking portion r3) D2. Yes. In a state where the protector S is not attached to the DIN rail R, the spring member E is in a no-load state where no load is applied. Therefore, the operation member H does not move in the vertical direction.

  Next, the case where the protector S is attached to the DIN rail R will be described. When the protector S is not attached to the DIN rail R, the protector S is moved in the direction of the DIN rail R. First, the upper vertical locking portion r2 of the DIN rail R is moved to the upper gap V2. insert.

  Further, when the protector S is moved in the direction of the DIN rail R, the lower vertical locking portion r3 of the DIN rail R comes into contact with the guide inclined portion h2c formed on the operation member H of the protector S. From this state, when the protector S is further moved in the direction of the DIN rail R, the locking engagement protrusion s5c formed on the base unit S2 and the engagement formed on the operation member H as described above. Since the distance D1 with the stop projection piece h2a is shorter than the distance D2 between the upper vertical locking portion r2 and the lower vertical locking portion r3 of the DIN rail R, the lower vertical locking portion r3 of the DIN rail R is The operation member H is moved downward in FIGS. 9 and 10. When the locking protrusion h2a of the operating member H gets over the lower vertical locking portion r3 of the DIN rail R, the lower vertical locking portion r3 is based on the inclined portion h2b formed on the operating member H. The protector S is attached to the DIN rail R as shown in FIG. 1 by being inserted into the lower gap V1 formed between the base unit S2 and the vertical surface s5b. This state is a locked state in which the protector S is not detached from the lock DIN rail R.

  As described above, when the protector S is attached to the DIN rail R, since the operation member H moves downward, the U-shaped main body of the spring member E located on the hook-shaped portion e3 side. The part e1 also moves downward, and as shown in FIG. 11, an elastic repulsive force that moves the operating member H upward is incorporated in the spring member E. Therefore, the operating member H does not move downward and the protector S is not detached from the DIN rail R, and the locked state between the protector S and the lock DIN rail R is not released.

  From the locked state of the protector S and the lock DIN rail R as shown in FIG. 11, the operation member H disposed on the protector S is moved downward against the elastic force of the spring member E. When moved, the lower vertical locking portion r3 formed on the DIN rail R is discharged from the lower gap V1, as shown in FIG. In this state, as in the state where the protector S is not attached to the DIN rail R shown in FIG. 9, the spring member E is in a state where no load is applied, and this state is maintained. The Therefore, the operation member H does not move. This state is an unlocked state in which the protector S can be removed from the DIN rail R. In this unlocked state, since the operation member H does not move upward, the operation member H can be removed from the DIN rail R without the operator holding the operation member H by hand. It can be done easily and quickly.

  As described above, in the apparatus for attaching the protector to the DIN rail, the U-shaped main body e1 of the spring member E is attached to the spring support pin s6a of the support piece s6 formed in the base unit S2 constituting the protector S. An annular locking portion e2 formed at one end of the U-shaped main body e1 of the spring member E is inserted into a spring support hole h3c formed in the support piece h3 constituting the operation member H. A hook-like portion e3 formed at one end is locked, and the operation member H is configured not to move downward due to the elastic force of the spring member E when the protector S and the DIN rail R are locked. In the unlocked state in which the protector S is removable from the DIN rail R, the operating member H is configured not to move upward, so the protector S from the DIN rail R is When the removal process, in which upward movement of the operating member H is configured to be prevented. Accordingly, the work for removing the protector S from the DIN rail R can be easily and quickly performed, and the workability of the work for removing the protector S from the DIN rail R is improved.

  Further, since the guide piece h4 formed on the operation member H is configured to be inserted into the guide recess s7c of the engagement portion s7 formed on the base unit S2 of the protector S, the operation member H And can be moved up and down stably.

E ········· Spring member H ············ Operation member h3 ··········· Support piece h4 ··· ······ Guide piece h6 ··································· DIN rail r2 Vertical locking part r3 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Lower vertical locking part S ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Protective device S1 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Surge protection Unit S2 ... Base unit V1 ... Lower gap V2 ... Upper gap

Claims (2)

  In the apparatus for attaching the protector to the DIN rail, an annular locking portion formed at one end of the U-shaped main body portion of the spring member is attached to the spring support pin of the support piece formed in the base unit constituting the protector. A hook-like portion formed at the other end of the U-shaped main body portion of the spring member is engaged with a spring support hole formed in the support piece that constitutes the operation member, and the protector In the locked state between the DIN rail and the DIN rail, the operating member is configured not to move downward due to the elastic force of the spring member. The member is configured not to move upward, and is configured to prevent the upward movement of the operation member when the protector is removed from the DIN rail. Mounting device for safe instrument DIN rail.   The DIN rail of the protector according to claim 1, wherein the guide piece formed on the operation member is inserted into a guide recess of an engaging portion formed on the base unit of the protector. Mounting device to.

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