JP2009140900A - Fixing metal fittings for installation rail - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide fixing metal fittings for an installation rail readily attached to the installation rail. <P>SOLUTION: The fixing metal fittings 1 include an outer housing strip 3 having a pair of locking claws 11 protruding downward from both lower sides and bending their leading ends 15 opposite to each other and a pair of loosely fitting grooves 12 formed in bent parts of the locking claws 11 to loosely fit on linking plate sheets E of the installation rail A, a lifting strip 4 slidably held in a sliding clearance 13 within the outer housing strip 3 and a fixing screw 5 moving up and down in the sliding clearance 13 at its tip. The lifting strip 4 is depressed with each linking plate sheet E loosely fitted into the loosely fitting groove 12 to nip an end of each linking plate sheet E between the locking claw 11 and a lower bottom surface of the lifting strip 4. A nip-pressing edge 18 pressed into contact with the end of the linking plate sheet E from below is formed on an upper edge of the tip of the locking claw 11 and an inclined guide edge 19 guiding the end of the linking plate sheet E onto the nip-pressing edge 18 is formed on the base end side of the nip-pressing edge 18 of each locking claw 11. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a mounting bracket for a mounting rail that is mounted on a mounting rail and fixes a mounting device such as a terminal block mounted on the mounting rail so as not to move along the mounting rail.

  Various terminal blocks have been proposed that include a plurality of connecting portions for connecting conducting wires and electrically connect the conducting wires connected to the connecting portions. Such a terminal block is hold | maintained on an installation rail, multiple rows | lines are provided, and will comprise a collective terminal block (for example, refer patent document 1). As shown in FIG. 11, the installation rail A is formed with linkage plate seats E, E projecting in the width direction at the upper ends of the rising side walls D, D on both sides along the longitudinal direction. An engaging portion (not shown) provided at the lower part of the terminal block C to be connected is engaged with the lower surfaces of the linkage plate seats E, E, and the plurality of terminal blocks C are held in alignment. In order to prevent the collective terminal block B held on the installation rail A from moving along the installation rail A, installation rail fixing brackets (hereinafter abbreviated as “fixing brackets”) 1b and 1b are provided. Installed.

  As shown in FIG. 12, the conventional fixing bracket 1b includes an outer casing piece 3b and a pair of locking claws 11b that are slidably held in the vertical direction inside the outer casing piece 3b and project downward from both sides of the lower section. , 11c are assembled by a fixing screw 5b and a square nut 31. The pair of latching claws 11b and 11c are bent in a substantially L shape and their tips are opposed to each other, and the link plate seats E and E are loosely connected to the bent portions of the latching claws 11b and 11c. A pair of loose fitting groove portions 12b and 12c to be fitted is formed. Here, one locking claw 11c is larger than the other locking claw 11b, and the loose fitting groove 12c formed in the larger locking claw 11c is deeper than the other loose fitting groove 12b.

  The fixing bracket 1b is attached to the installation rail A according to the procedure shown in FIGS. That is, first, with the fixing screw 5b loosened, the fixing bracket 1b is tilted with respect to the installation rail A, and is loosely fitted to one linkage plate seat E in the deeper loose fitting groove 12c (FIG. 13a). Subsequently, in a state where the linkage plate seat E is inserted to the back of the loose fitting groove 12c, the tilted fixing bracket 1b is leveled (FIG. 13b). Next, the fixing fitting 1b is slid in the direction of the deep loose fitting groove 12c, and the other linkage plate seat E is loosely fitted in the shallow loose fitting groove 12b (FIG. 13c). The tip is made to wrap around below each linkage plate seat E. Finally, by tightening the fixing screw 5b and raising the elevating piece 4b with respect to the outer casing piece 3b, the linkage plate seats E and E are sandwiched between the respective locking claws 11b and 11c and the outer casing piece 3b. Then, the fixing bracket 1b is fixed to the installation rail A (FIG. 13d).

JP 2003-331947 A (paragraph 0003, FIG. 7)

  In the conventional fixing bracket, in order to fasten the fixing screw in a state where the tips of the locking claws on both sides can be engaged with each linkage plate seat, the depth of one loose fitting groove is reduced, Positioning is performed by inserting a linkage plate seat into the back of the loose fitting groove. For this reason, when mounting on the installation rail, it is necessary to first fit the deep loose fitting groove portion with the installation rail first, so that it takes time to confirm the deeper one of the loose fitting groove portions when mounting. Also, when tightening with a fixing screw, the fixing bracket may not be fixed by hand so that it does not fall off the shallow loose-fitting groove, and the mounting of the fixing bracket may become unstable and mounting may not be successful.

  The present invention has been made in view of the current situation, and an object thereof is to provide a fixing bracket that can be easily mounted on a mounting rail.

  In the present invention, a mounting plate mounted on the installation rail is fixed by fixing a connecting plate seat protruding in the width direction at the upper ends of the rising side walls on both sides along the longitudinal direction. In a mounting rail fixing bracket that is fixed so as not to move along the rail, a pair of locking claws that protrude downward from both sides of the lower portion and bend so that their tip portions face each other, and a bent portion of each locking claw An outer casing piece having a pair of loose fitting grooves formed and loosely fitted to the linkage plate seat, an elevating piece that is slidably held up and down in a sliding gap formed inside the outer casing piece, A fixing screw that is screwed into a vertical screw hole formed in the upper part of the outer casing and moves the tip of the screw up and down in the sliding gap. The tip of the fixing screw is lowered in the loosely fitted state, and the raising / lowering piece at the tip By pressing downward, the end of each linkage plate seat is clamped between the locking claw and the lower bottom surface of the elevating piece. When holding the end portion, a substantially horizontal pinching edge is formed which will pinch the end portion from below, and on the base end side of the pinching edge of each locking claw, An installation rail fixing bracket characterized in that an inclined guide edge is formed to be inclined so as to guide an end portion of a biased linkage plate seat onto a pinching edge.

  In such a configuration, when the mounting rail is biased downward by the elevating piece in the state where the loose fitting groove is loosely fitted to each linkage plate seat of the installation rail, the end of the linkage plate seat is positioned above the clamping edge. Even if not, the end of the linkage plate seat is guided onto the pinching edge by the guiding action between the inclined guide edge of the locking claw and the end of the linkage plate seat. For this reason, the fixing bracket for installation rails of the present invention does not require time and effort for positioning in the width direction so that the respective locking claws and the linkage plate seats are engaged when fixed to the installation rail with fixing screws. . Further, as in the prior art, one loose fitting groove does not have to be shallow for alignment, so that the left and right loose fitting grooves can be fitted to the linkage plate seat without distinction.

  Further, in the mounting rail fixing bracket according to the present invention, a close fitting recess is formed on the lower part of the lifting piece so as to be fitted to the upper part of the mounting rail so as to have substantially no play in the width direction. In the upper part, a guide recess is formed in which the tip of the fixing screw fits in the sliding gap. The guide recess has a shape that shrinks downward, and the tip of the fixing screw extends to the lower part of the guide recess. When inserted, the tip is fitted with the guide recess in the width direction with almost no play, so that the lifting piece has a width at a position where both ends of the tightly fit recess coincide with the clamping edge of the locking claw. When the tip of the fixing screw is advanced from the upper part to the lower part of the guide recess, the lifting piece slides in the width direction by the guide action between the tip and the side of the guide recess. Move so that the end of each linkage plate seat is positioned above the clamping edge of the locking claw. Configured for relatively moving the mounting rails fitted into the concave portion is proposed.

  In such a configuration, when the tip of the fixing screw is positioned above the guide recess, the elevating piece can slide within the play range between the tip of the fixing screw and the guide recess. When loosely fitting the loose fitting groove portion of the outer casing piece to the linkage plate seat, it can be slid in the width direction so that the elevating piece does not get in the way. Then, when the tip of the fixing screw is advanced from the upper part to the lower part of the guide recess, the tip of the fixing screw is guided to the lower part of the guide recess by the guide action of the side of the guide recess that shrinks downward and the tip of the fixing screw. If the elevating piece slides in the width direction and the installation rail is fitted in the close fitting recess, the installation rail moves relative to the outer casing piece, and the linkage plate seat is moved to each locking claw. It will be located on the pinching edge. Therefore, according to this configuration, even when the guide action between the inclined guide edge and the linkage plate seat does not sufficiently act due to the mutual frictional force or the like, the fixing bracket is fixed by the guide action between the fixing screw and the lifting piece. And the installation rail can be aligned correctly.

  Further, in the mounting rail fixing bracket of the present invention, a close fitting recess is formed in the lower part of the lifting piece so as to be fitted to the upper part of the mounting rail so that there is almost no play in the width direction. The casing is formed with a restricting portion that restricts the sliding range in the width direction of the elevating piece. When the elevating piece is positioned closer to the upper side of the sliding gap, the width between the elevating piece and the restricting portion is increased. When there is play in the direction and the lift piece is positioned closer to the lower part of the sliding gap, there is no play between the lift piece and the restricting part, so that both ends of the tightly fitting recess are The elevating piece is set so that it cannot slide in the width direction at a position that coincides with the width direction. When the elevating piece is lowered in the sliding gap, the guide between the regulating portion of the outer casing piece and the elevating piece is provided. The lifting piece slides in the width direction due to the action so that the end of each linkage plate seat is positioned on the clamping edge of the locking claw Configured for relatively moving the mounting rails fitted into the fitting recess is proposed.

  In such a configuration, in the state where the lifting piece is positioned closer to the upper side of the sliding gap, the lifting piece can be slid in the width direction within the range of play between the lifting piece and the regulating portion. When loosely fitting the loosely fitting groove portion of the outer casing piece to the linkage plate seat of the rail, the lifting piece can be slid in the width direction so as not to get in the way. When the elevating piece is lowered in the sliding gap, the elevating piece moves in the width direction by the guide action between the regulating portion of the outer casing piece and the elevating piece, and the installation rail is fitted in the tightly fitting recess. If it is in a state, the installation rail moves relative to the outer casing piece, and the connecting plate seat is positioned on the clamping edge of each locking claw. Therefore, according to this configuration, even when the guide action between the inclined guide edge and the linkage plate seat does not sufficiently act due to the mutual frictional force or the like, the guide between the regulating portion of the outer casing piece and the lifting piece is provided. By the action, the fixing bracket and the installation rail can be correctly aligned.

  Moreover, in the mounting bracket for mounting rail according to the present invention, a configuration is proposed in which an elastic material is provided in the sliding gap to urge the elevating piece downward with respect to the outer casing piece. Examples of the elastic material include a compression coil spring and a leaf spring. In such a configuration, since the elevating pieces are urged downward within the sliding gap, the elevating pieces press the installation rails downward when each linkage plate seat of the installation rails is loosely fitted in the loose fitting grooves. Each linkage plate seat is clamped between the lifting piece and the locking claw, and the installation rail can be temporarily held before the fixing screw is tightened. For this reason, according to this configuration, it is possible to save the trouble of pressing the fixing bracket by hand when tightening the fixing screw.

  Further, in the mounting rail fixing bracket of the present invention, the elastic member is a compression coil spring that is fitted on a screw main body of a fixing screw and abuts the upper end portion on the outer casing piece and the lower end portion on the lifting piece. And the outer casing is in contact with the upper end of the compression coil spring at a position closer to at least one side of the sliding gap, guides the upper end toward the opposite side of the sliding gap, and the upper end is guided by the screw. A configuration having a guide holding unit that holds the main body while interfering with the main body is proposed. In such a configuration, the compression coil spring interferes with the screw thread of the screw main body and presses the fixing screw, thereby suppressing the rattling of the fixing screw and making the fixing screw difficult to loosen. Therefore, according to this configuration, means for preventing loosening of the fixing screw, such as caulking the tip of the fixing screw, applying an adhesive, or making the screw body longer than necessary, becomes unnecessary. .

  Further, in the above configuration, the outer casing piece further has a mounting groove in the vertical direction at a position near at least one side of the sliding gap, and the compression coil spring has its outer peripheral portion fitted into the mounting groove. Further, a configuration is proposed in which the guide holding portion is a side edge portion of the upper portion of the mounting groove that is tapered toward the upper side. According to such a configuration, the upper end portion of the compression coil spring can be held in a state of interfering with the screw main body by a simple configuration using the elastic force of the compression coil spring.

  Further, in the above configuration, the outer casing abuts the upper end portion of the compression coil spring at a position facing the guide holding portion with the sliding gap interposed therebetween, and the corresponding contact portion is provided by the guide holding portion. A configuration having a locking portion that locks at a lower position is proposed. In this configuration, the upper end portion of the compression coil spring is locked to the locking portion at the other side of the sliding gap and bent toward the other side of the sliding gap. Can strongly interfere with the screw body.

  As described above, according to the present invention, when the fixing bracket is fixed to the installation rail with the fixing screw, the positioning of the fixing bracket and the installation rail can be performed very easily. Moreover, since the structure which shallows one of the loose fitting groove parts is unnecessary, the loose fitting groove part can be loosely fitted to the linkage plate seat without checking the left and right sides of the loose fitting groove part.

  Hereinafter, embodiments of the present invention will be described according to examples.

<First Example>
As shown in FIG. 1, the mounting rail fixing bracket 1 of this embodiment is fixed on the installation rail A in the same manner as the existing fixing bracket, and the terminal block C mounted on the installation rail A is installed. It is fixed so as not to move along the rail A.

  As shown in FIGS. 2 to 5, the fixing bracket 1 includes a pair of left and right locking claws 11, 11 that protrude downward from both sides of the lower portion and bend so that the front ends thereof face each other. The outer casing piece 3 having a pair of loose fitting groove portions 12, 12 that are formed in the portion and loosely fit the linkage plate seat E, and slides up and down in a sliding gap 13 formed inside the outer casing piece 3. An elevating piece 4 that can be held, a fixing screw 5 that is screwed into a vertical screw hole 10 formed in the upper part of the outer casing piece 3 and moves the tip 30 up and down in the sliding gap 13; A compression coil spring 6 is provided in the sliding gap 13 and biases the elevating piece 4 downward.

  The outer casing piece 3 is formed by bending a metal plate piece punched into a required shape. The outer casing piece 3 has a substantially U-shape in a side view made up of a pair of side plate portions 8 and 8 facing front and rear and an upper plate portion 9 that links the upper edges of the side plate portions 8 to each other. A substantially uniform sliding gap 13 is formed between the opposing side plate portions 8 and 8 to hold the elevating piece 4.

  Each of the side plate portions 8 and 8 has a substantially trapezoidal shape with left-right symmetry and a wide lower portion. Further, the lower portions on both sides protrude downward to form a pair of left and right locking claws 11, 11. The locking claws 11, 11 are bent in an approximately L shape inward so that the front end portions 15 thereof face each other, and the link plate seat E is loosely connected to the bent portion of each locking claw 11. A pair of left and right loose fitting grooves 12, 12 to be fitted are formed. In such a configuration, the interval between the distal end portions 15 of the locking claws 11 is set slightly narrower than the upper width of the installation rail A, and the interval between the proximal ends of the engagement claws 11 is It is set wider than the upper width, and the outer casing piece 3 can be externally fitted to the upper part of the installation rail A by inclining the installation rail A and inserting each linkage plate seat E into the loose fitting groove portion 12 in order. It has become. Here, the latching claw 11 and the loose fitting groove portion 12 of the present embodiment have a symmetrical shape, and each linkage plate seat E can be inserted without distinguishing the left and right of the loose fitting groove portion 12.

  In addition, a substantially horizontal pressing edge 18 is formed on the upper edge of the distal end portion 15 of each locking claw 11 so as to be pressed from below when the end portion of the linkage plate seat E is clamped. In addition, an inclined guide edge 19 is formed on the base end side of each pinching edge 18 of each locking claw 11 so as to be inclined downward in the center and guide the end portion of the linkage plate seat E onto the pinching edge 18. Has been.

  At the place where the locking claws 11 of the side plate portions 8 and 8 are formed, a horizontally long drop prevention protrusion 16 that protrudes into the sliding gap 13 and prevents the lifting piece 4 from dropping off is formed by drawing. . A mounting groove 17 for mounting the compression coil spring 6 is opened at the upper center of the side plate portion 8.

  A screw hole 10 in the vertical direction is formed in the upper plate portion 9 of the outer casing piece 3, and the fixing screw 5 is screwed into the screw hole 10 from above, and the tip 30 thereof is inserted into the sliding gap 13. It is protruding.

  The elevating piece 4 is formed by punching a metal plate, and has a substantially frontal trapezoidal shape approximately the same size as the outer casing piece 3. The elevating piece 4 has a thickness substantially equal to the width of the sliding gap 13 of the outer casing piece 3 and is slidably held in the sliding gap 13.

  In the lower part of the elevating piece 4, a close fitting recess 20 having a substantially equal width to the upper part of the installation rail A is formed in a notch shape. As shown in FIG. 2, the close fitting recess 20 is located between the locking claws 11, 11 of the outer casing piece 3, and when each linkage plate seat E is loosely fitted into the loose fitting groove 12, The close fitting recess 20 is set so as to be externally fitted to the upper portion of the installation rail A in a state where there is substantially no play in the width direction.

  As shown in FIG. 5, a notch-shaped guide recess 21 is formed in the upper center of the elevating piece 4 so as to face downward. The guide recess 21 includes an upper wide portion 21a that is approximately twice as wide as the diameter of the fixing screw 5, a lower narrow portion 21c that is substantially equal to the diameter of the fixing screw 5, and a wide portion 21a and a narrow portion. It is comprised by the reduced width part 21b to which a width | variety is taper-down below between 21c. As shown in FIG. 2, the guide recess 21 is fitted with a tip 30 of the fixing screw 5, and the elevating piece 4 is restricted in the sliding range in the width direction by the tip 30. That is, in the state where the tip 30 of the fixing screw 5 is located at the wide portion 21a and there is play between them, the elevating piece 4 can slide in the width direction within the range of the play, but the tip 30 of the fixing screw 5 Is located in the narrow portion 21c, and there is almost no play between them, the lifting piece 4 is hardly slidable in the width direction. Here, in a state where the tip 30 of the fixing screw 5 is located in the narrow portion 21c, as shown in FIG. 2, both ends of the close fitting recess 20 of the elevating piece 4 and the pinching edge 18 of the locking claw 11 are provided. The position is set to match the width direction. According to such a configuration, with the tip 30 of the fixing screw 5 positioned above the sliding gap 13, the upper portion of the installation rail A is fitted into the close fitting recess 20 and the tip 30 of the fixing screw 5 advances downward. Then, the elevating piece 4 has a width so that the tip 30 is guided into the narrow portion 21c of the guide recess 21 by the guide action between the side surface of the reduced width portion 21b of the guide recess 21 and the tip 30 of the fixing screw 5. The mounting rail A that fits in the close fitting recess 20a moves relative to each other so that both end portions of each linkage plate seat E are positioned on the pinching edge 18.

  In addition, the compression coil spring 6 is held in the guide recess 21. The compression coil spring 6 is externally fitted to the fixing screw 5, and a lower end thereof is brought into contact with the bottom surface of the guide recess 21, and an upper end thereof is brought into contact with the upper plate portion 9 of the outer casing piece 3. The elevating piece 4 is urged downward with respect to the piece 3.

  As shown in FIG. 4, the fixture 1 is inserted into the sliding gap 13 of the outer casing piece 3 from the side, and in this state, the compression coil spring 6 is attached to the guide recess 21 and further fixed. The screw 5 is screwed into the screw hole 10 and the tip 30 is advanced into the guide recess 21 for assembly.

  The procedure for mounting the fixing bracket 1 to the installation rail A will be described with reference to FIG. First, the fixing screw 5 is rotated so that the tip 30 is positioned above the sliding gap 13. Then, in this state, the fixture 1 is tilted, and one linkage plate seat E is inserted to the back of the one-side loose fitting groove 12 (FIG. 6a). At this time, since there is sufficient play between the tip 30 of the fixing screw 5 and the guide recess 21, it is possible to push the elevating piece 4 diagonally upward by the linkage plate seat E so that the elevating piece 4 does not get in the way. it can.

  Next, in a state where one linkage plate seat E is inserted to the back of the one side loose fitting groove portion 12, the inclined fixing bracket 1 is tilted so as to be horizontal, and the other side loose fitting groove portion 12 is moved to the other linkage plate. It is fitted on the seat E (see FIG. 6b). As a result, the linkage plate seats E on both sides are loosely fitted in the respective loose fitting groove portions 12, and the close fitting recess 20 of the elevating piece 4 is fitted on the upper portion of the installation rail A. Note that the fixing bracket 1 of this embodiment is bilaterally symmetric, and any of the loose fitting groove portions 12 on both sides may be loosely fitted to the linkage plate seat E first.

  When the hand is released from the fixture 1 in the state shown in FIG. 6B, the lifting piece 4 slides downward with respect to the outer casing piece 3 by the urging force of the compression coil spring 6, so that the outer casing piece 3 moves relative to the installation rail A. As shown in FIG. 6c, the connecting plate seat E is sandwiched between the locking claw 11 of the outer casing piece 3 and the lower bottom surface of the elevating piece 4, and the fixing bracket 1 is temporarily fixed.

  With the fixing bracket 1 temporarily fixed, the fixing screw 5 is further rotated by a screwdriver or the like to lower the tip 30 of the fixing screw 5 and the lifting piece 4 is pressed downward by the tip 30. As a result, the linkage plate seats E sandwiched between the locking claws 11 and the elevating pieces 4 are more strongly clamped, and the fixture 1 is completely fixed to the installation rail A (see FIG. 6d).

  As described above, the fixing bracket 1 of the present embodiment tilts the fixing bracket 1 so that the loose fitting groove portions 12 on both sides are externally fitted to the linkage plate seats E, and the fixing screws 5 are temporarily fixed by the compression coil springs 6. It is attached to the installation rail A by tightening. Here, in the fixing bracket 1 of the present embodiment, in the mounting procedure, the positioning of the installation rail A and the fixing bracket 1 in the width direction is automatically performed in the process of the mounting procedure. The end portion of the linkage plate seat E can be reliably held on the pinching edge 18 of both the locking claws 11.

  That is, even if the end portion of each linkage plate seat E is not positioned on the pinching edge 18, the base end side of each pinching edge 18 of each locking claw 11 is inclined downward in the center. Since the inclined guide edge 19 that guides the end of the plate seat E onto the pinching edge 18 is formed, when the linkage plate seat E is sandwiched between the outer casing piece 3 and the lifting piece 4, the linkage plate When the seat E is pressed downward by the elevating piece 4, a guiding action is generated between the inclined guide edge 19 and the end of the linkage plate seat E, and the end of the linkage plate seat E is positioned on the clamping edge 18. It is guided to do. Even when the guiding action between the inclined guide edge 19 and the end portion of the linkage plate seat E is insufficient, when the elevating piece 4 is pushed down by the fixing screw 5, the tip 30 of the fixing screw 5 and the guide recess By the guide action between the 21 side surfaces, the installation rail A and the outer casing piece 3 can be relatively moved in the width direction so that each linking plate seat E is positioned on the clamping edge 18.

  As described above, in this embodiment, when the fixing bracket 1 is mounted on the installation rail A, it is not necessary to align the fixing bracket 1 and the installation rail A in the width direction. Further, when attaching the fixing bracket 1, the linkage plate seat E may be inserted into either loose fitting groove portion 12 first, so that it is not necessary to confirm the right and left of the fixing bracket 1. Therefore, the fixing bracket 1 of the present embodiment can be attached to the installation rail A more easily than in the past.

  Further, since the fixing bracket 1 of this embodiment can be temporarily fixed by the compression coil spring 6 when the fixing bracket 1 is fixed to the installation rail A by the fixing screw 5, the fixing bracket 1 is held by hand when the fixing screw 5 is fastened. Time and effort is also unnecessary.

<Second embodiment>
Next, a description will be given of a second embodiment in which the configuration of the first embodiment is partially changed, and the installation rail and the fixing bracket can be aligned by the guide action between the outer casing piece and the lifting piece. The fixing bracket of the present embodiment has the same configuration as that of the first embodiment, and the same reference numerals are given to the common parts in the drawings, and the description thereof is omitted.

  The fixing bracket 1a of this embodiment is mounted on the installation rail A in the same manner as the fixing bracket 1 (see FIG. 1) of the first embodiment, and as shown in FIGS. A pair of left and right engaging claws 11 and 11 that project and bend so that their tip portions are opposed to each other, and a pair of loose fitting groove portions that are formed in the bent portions of the respective engaging claws 11 and loosely fit the linkage plate seat E. 12 and 12, an elevating piece 4 a slidably held in a sliding gap 13 a formed inside the outer casing piece 3 a, and an upper part of the outer casing piece 3 a. The fixed screw 5 that is screwed into the vertical screw hole 10a and moves the tip 30 up and down in the sliding gap 13a, and the sliding gap 13a is arranged to urge the elevating piece 4a downward. And a compression coil spring 6.

  The outer casing piece 3a is formed by bending a metal plate piece punched into a required shape. The outer casing piece 3a is formed in a substantially U-shape in a side view including a pair of side plate portions 8a, 8a opposed to each other in the front-rear direction and an upper plate portion 9a linking the upper edges of the side plate portions 8a. Between the side plate portions 8a, 8a facing each other, a substantially equal width sliding gap 13a for holding the elevating piece 4 is formed.

  Each of the side plate portions 8a, 8a has a substantially convex shape, and the lower portions on both sides protrude downward to form a pair of left and right engaging claws 11, 11. The structure of the locking claws 11 is the same as that in the first embodiment.

  Further, a circular drop-off preventing protrusion 16a that protrudes into the sliding gap 13 and prevents the elevating piece 4a from dropping downward is formed by drawing at a portion where the locking claw 11 of the side plate portions 8a and 8a is formed. ing. Further, a mounting groove 17a for mounting the compression coil spring 6 is opened at the upper center of the side plate portion 8a.

  Further, on both side portions of the side plate portions 8a and 8a, there are formed restricting portions 23 that project into the sliding gap 13a and restrict the sliding range in the width direction of the elevating piece 4a. As will be described later, the restricting portion 23 comes into contact with the side surface of the elevating piece 4a and exhibits a guiding action for the elevating piece 4a.

  A screw hole 10a in the vertical direction is formed in the upper plate portion 9 of the outer casing piece 3a. The fixing screw 5 is screwed into the screw hole 10a from above, and the tip 30 thereof is inserted into the sliding gap 13a. It is protruding.

  The elevating piece 4a is formed by punching a metal plate, and has a horizontally long strip shape that is substantially equal in width to the outer casing piece 3a. The elevating piece 4a has a thickness substantially equal to the width of the sliding gap 13a of the outer casing piece 3a, and is slidably held in the sliding gap 13a.

  A pair of locking projections 25, 25 are formed on the lower portions on both sides of the elevating piece 4 a so as to extend outward and downward, and are approximately equal in width to the upper portion of the installation rail A between the locking projections 25, 25. A tightly fitting recess 20a is formed. As shown in FIG. 7, the close fitting recess 20 a is located between the locking claws 11, 11 of the outer casing piece 3 a, and when each linkage plate seat E is loosely fitted into the loose fitting groove 12, The close fitting recess 20a is set so as to be externally fitted to the upper portion of the installation rail A in a state where there is substantially no play in the width direction.

  As shown in FIG. 10, the elevating piece 4 a has a shape that gradually decreases in the downward direction, and a smooth guide surface 24 that is inclined inward toward the lower side is formed on the side surface thereof. As shown in FIG. 7, the elevating piece 4a is held so as to be slidable up and down between the restricting portions 23, 23 of the outer casing piece 3a. Further, in the state in which the narrow portion is positioned between the restricting portions 23, the lifting piece 4a has a play with the restricting portion 23 and can slide in the width direction within the range of the play. Become. On the other hand, when the elevating piece 4a is lowered and the wide portion of the elevating piece 4a is closely fitted between the restricting portions 23 and 23 and there is no play between them, the elevating piece 4a cannot slide in the width direction. . Here, in a state where the wide portion of the elevating piece 4a is tightly fitted between the restricting portions 23, 23, as shown in FIG. 7, both end portions of the tightly fitting recess 20a of the elevating piece 4a and each locking claw 11 are provided. Is set so as to coincide with the pinching edge 18 in the width direction.

  According to this configuration, when the elevating piece 4a is lowered after the elevating piece 4a is pushed upward and the upper portion of the installation rail A is fitted into the close fitting recess 20a, the guide between the restricting portion 23 and the guide surface 24 is achieved. Due to the action, the elevating piece 4 a slides in the width direction and is tightly fitted to the restricting portion 23. As a result, the installation rail A moves relative to the outer casing piece 3a, so that both end portions of each linkage plate seat E are positioned on the clamping edge 18.

  Thus, according to the fixing bracket 1a of the present embodiment, when the mounting bracket A is mounted, in addition to the guiding action between the inclined guide edge 19 and the end of the linkage plate seat E, the outer casing piece 3a By the guide action between the restricting portion 23 and the guide surface 24 of the elevating piece 4a, the installation rail A can be relatively moved so that each link plate seat E is positioned on the pinching edge 18. Therefore, even when the guiding action between the inclined guide edge 19 and the end of the linkage plate seat E is insufficient, the installation rail A and the fixing bracket are caused by the guiding action between the outer casing piece 3a and the lifting piece 4a. The alignment of 1a can be performed reliably.

<Third embodiment>
Next, a description will be given of a third embodiment in which the configuration of the second embodiment is partially changed and the compression coil spring and the fixing screw are made to interfere with each other. Note that the fixing bracket of the present embodiment has the same configuration as that of the second embodiment, and the same reference numerals are given to the common portions in the drawings, and the description thereof is omitted.

  As shown in FIGS. 14 to 16, the fixing bracket 1 c of the present embodiment includes an outer casing piece 3 c that is substantially U-shaped in side view and includes a side plate portion 8 a and an upper plate portion 9 a. The difference in configuration between the outer casing piece 3c and the outer casing piece 3a of the second embodiment is vertical mounting grooves 17a and 17b opened at the upper center of the side plate portion 8a. As shown in FIG. 16 (a), the mounting groove 17b on the front side of the outer casing piece 3c has a taper shape with its upper portion tapered upward, and the side edge of the upper portion of the mounting groove is compressed. The upper end portion of the coil spring 6a is guided toward the back side to be a guide holding portion 32 for holding. On the other hand, as shown in FIG. 16B, the mounting groove 17a on the back side has a uniform width in the vertical direction as in the second embodiment.

  The compression coil spring 6a of the present embodiment has an inner diameter larger than the outer diameter of the screw body 51 of the fixing screw 5 having the thread 52, and is externally fitted to the screw body 51, and its upper end is attached to the outer casing piece 3c. By bringing the lower end portion into contact with the elevating piece 4a, the elevating piece 4a is urged downward with respect to the outer casing piece 3c. Further, the compression coil spring 6a has an outer diameter larger than the width of the sliding gap 13a, and does not completely fit in the sliding gap 13a, and both front and rear sides of its outer peripheral portion are fitted in the mounting grooves 17a and 17b. Yes.

  According to such a configuration, as shown in FIG. 15, the front side portion of the upper end portion of the compression coil spring 6 a comes into contact with the guide holding portion 32. Since the guide holding portion 32 is reduced in width upward, when the upper end portion of the compression coil spring 6a tries to expand by elastic force, the upper end portion is guided to the back side by the guide action of the guide holding portion 32, The thread 52 of the screw body 51 interferes with the Y portion in FIG. 15 and is held in such an interference state.

  Thus, in the fixing bracket 1c of the present embodiment, the fixing screw 5 is pressed by the upper end portion of the compression coil spring 6a, so that it is difficult to rattle and loosen. Therefore, the fixing bracket of the present embodiment can easily prevent the fixing screw 5 from loosening without crimping the tip of the fixing screw 5 or applying an adhesive.

<Fourth embodiment>
Next, a description will be given of a fourth embodiment in which the configuration of the mounting groove on the back side is changed from the configuration of the third embodiment. The fixing bracket of the present embodiment has the same configuration as that of the third embodiment, and the same reference numerals are given to the common parts in the drawings, and the description thereof is omitted.

  In this embodiment, as shown in FIGS. 17A and 17B, the upper edge of the mounting groove 17c on the back side of the outer casing piece 3d is more than the upper edge of the mounting groove 17b on the front side. The upper upper edge of the mounting groove 17c is a locking portion 33 that locks the upper end of the compression coil spring 6a at a position lower than the guide holding portion 32.

  In the fixing bracket 1d of the present embodiment, as shown in FIG. 18, the upper end portion of the compression coil spring 6a is locked to the locking portion 33 at a position closer to the back side of the sliding gap 13a, and the sliding gap 13a It will bend to the back side. For this reason, the upper end portion of the compression coil spring 6 a is displaced closer to the back side by the action of bending the compression coil spring 6 a by the locking part 33 in addition to the guide action of the guide holding part 32. Therefore, in this embodiment, compared with the third embodiment, the upper end portion of the compression coil spring 6a more strongly interferes with the screw thread 52 at the Y portion in the figure, and the loosening of the fixing screw 5 can be prevented more reliably.

<Fifth embodiment>
Next, a fifth embodiment in which the configuration of the mounting grooves on the front side and the back side is changed from the configuration of the third embodiment will be described. The fixing bracket of the present embodiment has the same configuration as that of the third embodiment, and the same reference numerals are given to the common parts in the drawings, and the description thereof is omitted.

  In the present embodiment, as shown in FIG. 19, mounting grooves 17d and 17d having the same shape are formed on the front and back sides of the outer casing piece 3e at positions facing front and rear. Each mounting groove 17d has a taper shape with the upper portion thereof tapered upward, and a guide holding portion 32a that guides and holds the side edge of the upper portion of the mounting groove and the upper end portion of the compression coil spring 6a on the back side. , 32a. Further, horizontal edge portions are extended on both sides of the lower end of the guide holding portion 32a, and the engaging portions 33a for locking the edge portions at positions lower than the guide holding portion 32a at the upper end portion of the compression coil spring 6a. It is said.

  In the fixing bracket 1e of the present embodiment, as shown in FIG. 20, the upper end portion of the compression coil spring 6a is in contact with the guide holding portion 32a on one side (left side in the drawing) of the sliding gap 13a. Guided to the opposite side (right side in the figure). In this embodiment, the upper end guided by the guide holding portion 32 on one side is set so as to be deeply engaged with the mounting groove 17c on the opposite side, and abuts on the guide holding portion 32a on the opposite side. Instead, it abuts against the horizontal locking portion 33a and is locked at a position lower than the guide holding portion 32a.

  Thus, in the present embodiment, the guide holding portions 32a and the locking portions 33a are formed in the mounting grooves 17d on both sides, respectively, and the upper end portion of the compression coil spring 6a is either one of the guide holding portions. While being unevenly distributed toward the opposite side by the guiding action of 32a, it is bent toward the opposite side by the locking of the locking portion 33a on the opposite side. Therefore, in the configuration of the present embodiment, the upper end portion of the compression coil spring 6a and the screw thread 52 of the screw main body 51 are connected at the Y portion in FIG. 20 by the synergistic action of the guide holding portion 32a and the locking portion 33a. It is possible to cause strong interference and reliably prevent the fixing screw 5 from loosening. In the present embodiment, the front and rear mounting grooves 17d have the same shape, and the outer casing piece 3a has a front and back symmetrical shape. Therefore, when the compression coil spring 6a is assembled to the outer casing piece 3e, There is an advantage that the trouble of distinguishing the front and back of the piece 3a is unnecessary.

  In addition, the fixing metal fitting in this invention can add a various change in the range which does not deviate from the summary of not only the form of the said Example but this invention. For example, the above embodiment is a fixing bracket used for a mounting rail for mounting a terminal block, but the present invention is not limited to the mounting rail for mounting a terminal block, but a mounting rail for mounting various mounting devices. It can be applied to fixing brackets. In the above embodiment, the lifting piece was formed by punching a metal piece having a thickness substantially equal to the width of the sliding gap, but the lifting piece according to the present invention is not limited to such a configuration. A thin metal piece may be bent into a substantially U shape to have a thickness substantially equal to the width of the sliding gap.

It is a perspective view of the state which attached the terminal block C and the fixing bracket 1 of the 1st Example to the installation rail A. FIG. It is a front view of the fixture 1 of the first embodiment. It is a side view of the fixture 1 of the first embodiment. It is a disassembled perspective view of the fixing metal fitting 1 of a 1st Example. It is a disassembled front view of the fixing metal fitting 1 of a 1st Example. It is explanatory drawing which shows the attachment procedure of the fixing metal fitting 1 of a 1st Example. It is a front view of the fixture 1a of the second embodiment. It is a side view of the fixture 1a of a 2nd Example. It is a disassembled perspective view of the fixture 1a of a 2nd Example. It is a disassembled front view of the fixture 1a of a 2nd Example. It is a perspective view of the state which attached the terminal block C and the fixing bracket 1b of the conventional structure to the installation rail A. FIG. It is a disassembled perspective view of the fixing metal fitting 1b of a conventional structure. It is explanatory drawing which shows the procedure which fixes the fixing bracket 1b of a conventional structure to the installation rail A. It is a front view of the fixture 1c of the third embodiment. It is a vertical side view which cuts and shows the outer casing piece 3c in the XX part in FIG. It is the (a) front view and (b) back view of the outer casing piece 3c of a 3rd Example. It is (a) front view and (b) back view of the outer casing piece 3d of the fourth embodiment. It is a vertical side view of the fixing bracket 1d of the fourth embodiment showing the interference mode between the compression coil spring 6a and the fixing screw 5. It is a front view of the outer casing piece 3e of the fifth embodiment. It is a vertical side view of the fixing bracket 1e of the fifth embodiment showing an interference mode between the compression coil spring 6a and the fixing screw 5.

Explanation of symbols

1, 1a, 1b, 1c, 1d, 1e Fixing bracket 3, 3a, 3b, 3c, 3d, 3e Outer casing piece 4, 4a, 4b Lifting piece 5, 5b Fixing screw 6, 6a Compression coil spring 8, 8a Side plate 9 , 9a Upper plate part 10, 10a Screw hole 11 Locking claw 12 Free fitting groove part 13, 13a Sliding gap 15, 15a Tip part (locking claw)
18 Clamping Edge 19 Inclined Guide Edge 20, 20a Close Fitting Recess 21 Guide Recess 23 Control Part 24 Guide Surface 25 Locking Projection 30 Tip (Fixing Screw)
32, 32a Guide holding part 33, 33a Locking part 51 Screw body A Installation rail C Terminal block D Standing side wall E Linking plate seat

Claims (7)

At the upper ends of the rising side walls on both sides, a connecting plate seat protruding in the width direction is formed on the installation rail formed along the longitudinal direction, and the mounting device mounted on the installation rail is installed along the installation rail. In the mounting bracket for mounting rail that is fixed so that it does not move,
A pair of locking claws that protrude downward from both sides of the lower portion and bend so that the front ends thereof face each other; a pair of loose fitting grooves that are formed on the bent portions of the respective locking claws and are loosely fitted to the linkage plate seat; An outer casing piece having
A lifting piece that is slidably held up and down in a sliding gap formed inside the outer casing piece,
A fixing screw that is screwed into a vertical screw hole formed in the upper part of the outer casing piece and moves the tip up and down within the sliding gap;
With each linkage plate seat of the installation rail loosely fitted in the loose fitting groove, the tip of the fixing screw is lowered and the lifting piece is pressed downward by the tip, thereby locking the end of each linkage plate seat And between the lower bottom of the lifting piece,
The upper edge of each locking claw is formed with a substantially horizontal clamping edge that clamps the end from below when clamping the end of the linkage plate seat. The base end side of each clamping claw is formed with an inclined guide edge that is inclined so as to guide the end of the downwardly biased linkage plate seat onto the clamping edge. Fixed bracket for installation rail. A close fitting recess is formed in the lower part of the lifting piece so as to be fitted to the upper part of the installation rail so that there is almost no play in the width direction. A guide recess that fits inside is formed,
The guide recess has a shape that shrinks downward, and when the tip of the fixing screw is inserted to the lower part of the guide recess, the tip fits into the guide recess in the width direction with almost no play, so The elevating piece is set so that it cannot slide in the width direction at a position where both ends of the fitting recess coincide with the pinching edge of the locking claw in the width direction,
When the tip of the fixing screw is advanced from the upper part to the lower part of the guide recess, the elevating piece slides in the width direction by the guide action between the tip and the side surface of the guide recess, and the end of each linkage plate seat is engaged. 2. The mounting bracket for mounting rail according to claim 1, wherein the mounting rail fitted in the close fitting recess is relatively moved so as to be positioned above the clamping edge of the pawl. A close fitting recess is formed on the lower part of the lifting piece so as to be fitted to the upper part of the installation rail so that there is almost no play in the width direction.
The outer casing is formed with a regulating portion that regulates the sliding range in the width direction of the elevating piece,
When the lifting piece is positioned closer to the upper side of the sliding gap, play occurs in the width direction between the lifting piece and the restricting portion, and when the lifting piece is positioned closer to the lower side of the sliding gap, the lifting piece and the restriction are restricted. By eliminating the play between the parts, the lifting piece is set so that it cannot slide in the width direction at the position where both ends of the tightly fitting recess coincide with the clamping edge of the locking claw,
When the elevating piece is lowered within the sliding gap, the elevating piece slides in the width direction by the guiding action between the regulating portion of the outer casing piece and the elevating piece, and the end of each linkage plate seat is the locking claw. The mounting bracket for a mounting rail according to claim 1 or 2, wherein the mounting rail fitted in the close fitting recess is relatively moved so as to be positioned on the clamping edge of the mounting rail.   The mounting bracket for a mounting rail according to any one of claims 1 to 3, wherein an elastic material is provided in the sliding gap to bias the elevating piece downward with respect to the outer casing piece. . The elastic material is a compression coil spring that is externally fitted to a screw main body of a fixing screw, and has an upper end contacting the outer casing piece and a lower end contacting the lifting piece,
The outer casing is in contact with the upper end of the compression coil spring at a position close to at least one side of the sliding gap, guides the upper end toward the opposite side of the sliding gap, and the upper end is connected to the screw body. 5. A mounting bracket for a mounting rail according to claim 4, further comprising a guide holding portion for holding in an interference state. The outer casing has a mounting groove in the vertical direction at a position closer to at least one side of the sliding gap,
The compression coil spring has its outer periphery fitted in the mounting groove,
The mounting bracket for mounting rail according to claim 5, wherein the guide holding portion is a side edge portion of an upper portion of the mounting groove that is tapered toward the upper side.   The outer casing is in contact with the upper end of the compression coil spring at a position facing the guide holding part with a sliding gap therebetween, and locks the corresponding contact part at a position lower than the guide holding part. The fixing bracket for installation rails according to claim 6, wherein:

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