JP2008275116A - Member mounting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a member mounting structure capable of mounting a mounted member of a large-sized switch case on a fixed plate of a wall face with only work from the front face side even when the inside of the fixed plate is narrow. <P>SOLUTION: A movable body 6 held on a screw rod 5A of a bolt 5 fitted and held in a flat part 1A for mounting of the mounted member 1 by press-fitting the screw rod 5A in a hole of an elastic nut 7 made of an elastic material is passed through from an opening part 2A having a predetermined shape provided in the fixed plate 2 to the back face of the fixed plate 2. Thereafter, the bolt 5 is rotated to firmly contact a portion in the back face of the fixed plate 2 that is not the opening part 2A. The mounting structure capable of mounting by only work from the front face side can be obtained. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention is a large switch, controller, instrument case, etc., such as a case where a mounting member having a flat part for mounting outside is attached to a fixing plate such as a wall surface of various facilities, the space inside the fixing plate is narrow, The present invention relates to a member attachment structure that can be attached only from the surface side when it is behind other members.

  As a mounting structure for fixing a mounted member having such a mounting plane portion to a fixed body such as a wall surface only from the surface side, an exploded perspective view of a main part of the conventional mounting structure in FIG. 11 and FIG. There is known a mounting structure as shown in the front sectional view of FIG.

  In the figure, reference numeral 41 denotes an upper elastic cylinder having a bolt insertion hole 41A in the center and an inclined surface 41B formed at the lower end surface, and 42 a lower elastic cylinder having a bolt insertion hole 42A in the center. An inclined surface 42B having the same inclination angle as that of the inclined surface 41B is formed on the upper end surface, both of which are elastic bodies made of rubber or polyurethane resin, and 43 is a nut provided with an eccentric screw hole 43A. is there.

  The case where the angle 45 which has the flat part 45A for attachment to the fixing bodies 47, such as a wall surface, is fixed using such an attachment member is demonstrated.

  As shown in FIG. 12, the bolt 44 is passed through the hole 45B of the mounting flat portion 45A of the washer 46 and the angle 45, and into the bolt insertion hole 41A of the upper elastic cylinder 41 and the bolt insertion hole 42A of the lower elastic cylinder 42. The screw is inserted into the eccentric screw hole 43 </ b> A of the nut 43 and inserted into the fixing hole 47 </ b> A formed in the fixing body 47.

  When the bolt 44 is tightened, the nut 43 does not rotate in the fixing hole 47A because the screw hole 43A is eccentric. The elastic cylinder body 42 is raised, and in the ascending process, the upper elastic cylinder body 41 is decentered (eccentric) by the action of the inclined surfaces 41B and 42B, and the upper elastic cylinder body 41 is pressed against the inner surface of the fixing hole 47A by this action. To do.

  As the tightening further proceeds, as shown in the front sectional view for explaining the mounting state of the conventional mounting structure in FIG. 13, the upper elastic cylinder 41 has no escape space in the fixing hole 47A and becomes larger in diameter, and is pressed against the entire fixing hole 47A. At the same time, the lower elastic cylinder 42 is enlarged and pressed against the inner surface of the fixing hole 47A.

In this way, the angle 45 having the mounting flat portion 45A is fixed to the fixed body 47 only by the work from the front side (see, for example, Patent Document 1).
JP 7-317735 A

  However, in the above conventional mounting structure, it is necessary to provide an elongated hole perpendicular to the surface of the fixed body to which the member to be mounted is attached. There was a problem that a special cylindrical body or the like had to be provided.

  The present invention has been made to solve such a problem, and even when the fixed body is a wall surface with a small thickness, the member to be mounted can be easily attached only from the surface side. An object of the present invention is to provide a member mounting structure that can be securely fixed.

  In order to solve the above-described problems, the member mounting structure of the present invention has a fixed member having a mounting member having a mounting plane portion, a large-diameter head having an engaging portion with a rotary tool, and a predetermined length. A bolt made of a screw rod having a diameter, fitted into a through-hole provided in the mounting flat portion of the mounted member, and held so that the head is exposed on the surface and the screw rod protrudes vertically on the back surface A cylindrical elastic nut made of a flexible resin or hard rubber with a hole corresponding to the valley diameter of the screw rod of the bolt, and a bearing portion in which the elastic nut is fitted, and the end extended from the bearing portion It consists of a support made of a rigid material having an arm part of a fixed length provided with a support protrusion, a movable body held by a bolt by inserting a screw rod into the hole of an elastic nut, and rotation of the screw rod Sometimes a part of the movable body abuts to regulate the rotation range. The guide bar provided integrally and vertically from the back surface of the mounting flat part of the mounted member and the movable body and the guide bar held by the bolt at one end position of the movable body pass so as to change the orientation of the mounted member. And a fixed plate having a possible opening.

  By setting it as such a structure, the space | interval of the back surface of the plane part for attachment of a to-be-attached member and the protrusion part for support of a movable body is set larger than the thickness of a fixed plate, and the movable body was put in one terminal position. In this state, the movable body and guide rod are passed from the opening to the back side of the fixed plate, the back side of the mounting flat part of the mounted member is superimposed on the fixed plate, and the rotary tool is engaged with the large diameter head of the bolt. Rotate the screw rod to bring the movable body close to the stationary plate with the movable body in the other end position, and press the armed support protrusion on the non-opening part on the back of the stationary plate. The member can be fixed to the fixed plate, and the screw rod is inserted into the through-hole in the mounting flat part of the mounted member with the guide rod provided vertically, and the bolt is held. To be integrated in advance, including the body Since kill, only an opening of a predetermined shape on the fixed plate, and easily mounted can be at work only from the surface side of the fixed plate, it is possible to realize the mounting structure 119 can be reliably fixed.

  Further, in the above configuration, the guide rod may be formed using a wall portion provided perpendicularly to the back surface side of the mounting flat portion of the mounted member.

  By setting it as such a structure, the volume which an attachment member occupies is small in the back surface of the plane part for attachment of a to-be-attached member, and it can fix stably.

  The member mounting structure of the present invention comprises a mounted member having a mounting plane portion, a large-diameter head having an engaging portion with a rotary tool, and a screw rod having a predetermined length and a constant diameter. Fits into a through-hole provided in the base plate that is placed over the mounting flat part of the mounted member, and is held so that the head is exposed on the surface and the screw rod protrudes vertically on the back Bolts, flexible resin or hard rubber cylindrical nuts with holes corresponding to the valley diameters of the screw rods of the bolts, and the bearings that are fitted with the elastic nuts, and extended from the bearings A movable body made of a rigid material having a fixed length arm portion provided with a support protrusion at the tip, a screw rod screwed into the hole of the elastic nut and held by the bolt, and the bolt When the screw rod rotates, a part of the movable body comes into contact An opening through which the guide bar vertically provided on the back side of the base plate and the movable body held by the bolt at one end position of the movable body and the guide bar can pass so as to determine the direction by regulating the range. And a fixed plate having a portion.

  With such a configuration, the distance between the back surface of the base plate and the supporting protrusion of the movable body is set to a predetermined size, and the movable body and the guide are opened from the opening in a state where the movable body is at one end position. Pass the rod to the back side of the fixed plate, overlap the back surface of the mounting flat part of the mounted member on the fixed plate, and then engage the rotary tool with the large diameter head of the bolt to rotate the screw rod. With the movable body in the other end position, the movable body is brought close to the fixed plate, and the support protrusion of the arm portion is pressed against the portion of the fixed plate rear surface that is not the opening, and the mounted member can be fixed to the fixed plate. The screw rod is inserted into the through hole of the base plate in which the guide rod is provided vertically to hold the bolt, and the bolt is screwed into the elastic nut so that the mounting block including the movable body is integrated in advance. Can be fixed on the fixed plate Simply by providing Jo opening, and can be easily attached at the work from only the surface side of the fixed plate, it is possible to realize the mounting structure 119 can be reliably fixed.

  Further, in the above configuration, a metal base plate wider than the opening of the fixing plate is included in the recess on the back surface side of the mounting flat portion of the mounted member having a round hole larger than the head of the bolt. The mounting flat part is fixed so that it does not come out from the back surface of the mounting flat part, and the distance between the back face of the mounting flat part and the supporting protrusion of the movable body is set to a dimension larger than the thickness of the fixing plate. You may make it the back surface of overlap with a fixed plate.

  By adopting such a configuration, in addition to the effect of the above configuration, the mounting block integrated in advance can be further integrated with the member to be mounted and then fixed to the fixing plate very easily.

  In the above configuration, the mounting flat portion of the mounted member having an opening through which the movable body held by the bolt and the guide rod can penetrate at one end position of the movable body is superposed on the fixed plate. The distance between the back surface of the base plate wider than the opening and the support protrusion of the movable body is set to a dimension larger than the combined thickness of the mounting flat portion and the fixed plate, and on the surface of the mounting flat portion. You may make it overlap.

  With this configuration, in addition to the effects of the above configuration, the mounting block integrated in advance is inserted as it is into the mounting flat portion of the mounting member and the opening of the fixing plate to fix the mounting member. Can be fixed to the board.

  Further, in the above configuration, the length of the through hole provided in the mounting flat portion of the mounted member or the base plate disposed so as to overlap the mounting flat portion is fitted to the screw rod of the bolt. You may make it be 1.5 times or more of a diameter.

  By adopting such a configuration, when the screw rod of the bolt is rotated and the supporting protrusion of the movable body is pressed against the back surface of the fixed plate, the bolt can be prevented from being inclined and the pressure contact force being weakened.

  In the above configuration, the self-locking nut may be mounted at a position where the tip of the bolt rod is fixed with respect to the engaging portion with the elastic nut of the movable body.

  With such a configuration, when attaching or removing the mounted member by rotating the bolt with a rotary tool, the movable body that cannot be seen behind the mounted member or the fixing plate is mistakenly attached to the screw rod. The trouble of removing from the tip can be eliminated.

  In the above configuration, a hollow cylindrical elastic nut having a constant height and a ratio of the outer diameter to the inner diameter of 1.5 to 3.5 is press-fitted into the circular hole of the bearing portion having an inner diameter equal to the outer diameter. Thus, a movable body may be formed.

  With such a configuration, the elastic nut and the bearing portion of the movable body can be easily combined, and the screw rod is inserted into the hole of the elastic nut having an inner diameter corresponding to the thread valley diameter of the screw rod after the combination. As the outer diameter of the elastic nut tends to swell by screwing, the elastic nut is firmly pressed and fixed in the hole of the bearing portion of the support.

  Further, in the above configuration, the ratio of the outer diameter to the inner diameter at a constant height is 1.5 to 3.5, and the outer cross-sectional shape of the intermediate portion in the height direction of the hollow cylindrical shape is narrower than the circular portion. A movable body may be formed by press-fitting an Ω-shaped elastic nut having a portion into a Ω-shaped notch of the same size of the support.

  By adopting such a configuration, the portion of the Ω-shaped cross section of the intermediate portion in the height direction of the elastic nut is press-fitted into the Ω-shaped notch of the same dimension of the support and temporarily held in a stable state. After that, when the screw rod is screwed into the hole of the elastic nut having an inner diameter corresponding to the valley diameter of the screw rod, the outer diameter of the elastic nut tends to swell, and the elastic nut is strong against the notch of the support body of the support body. Pressed and fixed to.

  The member mounting structure of the present invention has a predetermined shape in which a movable body that is held via an elastic nut is provided on a screw rod of a bolt that is directly or indirectly held on a mounting flat portion of a mounted member. After passing through the opening of the fixing plate to the back side of the fixing plate, the bolt is rotated to be brought into pressure contact with the back surface of the fixing plate and fixed.

  As a result, a great effect of realizing a mounting structure of a member having a flat surface for mounting, which can be easily mounted on a fixed body having a small thickness by work from only one side and can be securely fixed. Play.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a front sectional view of a mounting structure according to a first embodiment of the present invention, and FIG. 2 is a sectional view taken along line DD in FIG.

  In the figure, reference numeral 1 denotes a mounted member, and 2 denotes a fixing plate to which the mounted member 1 is attached.

  The mounted member 1, which is a large switch or instrument case, is made of a highly rigid resin and has a bottom surface that is a mounting plane portion 1A. A guide bar 4 having a substantially square cross section is provided vertically from the back surface.

  A threaded rod 5A having a fixed length and a fixed diameter of a metal bolt 5 is fitted and held in this through hole 3 so as to be rotatable over a length of 1.5 times the diameter or more. The large-diameter head 5B is exposed on the surface of the mounting plane 1A.

  A movable body 6 including an elastic nut 7 and a support body 8 is held on the screw rod 5 </ b> A of the bolt 5.

  That is, as shown in the exploded perspective view of the movable body in the mounting structure according to the present embodiment in FIG. 3, the movable body 6 is formed of a flexible resin such as an elastomer or a material having elasticity such as a synthetic rubber. An elastic nut 7 having a hollow cylindrical shape with an inner diameter corresponding to the valley diameter of the screw rod 5A and an outer diameter of 1.5 to 3.5 times the inner diameter is used as the outer diameter of the elastic nut 7. It is press-fitted into the circular hole of the bearing portion 8A of the support 8 made of a highly rigid resin or zinc die cast having the same inner diameter.

  Thus, the movable body 6 is held by the screw rod 5A by screwing the screw rod 5A of the bolt 5 into the hole of the elastic nut 7, but the elastic nut 7 having an inner diameter corresponding to the valley diameter of the screw rod 5A. When the screw rod 5A is screwed into the hole, the outer diameter of the elastic nut 7 tends to swell and is firmly pressed and fixed to the wall of the hole of the bearing portion 8A of the support 8 and is fixed to the screw rod 5A. Even with a strong friction force.

  A supporting protrusion 9 </ b> A provided at the tip of the arm portion 9 of the support 8 is in contact with the bottom surface of the fixing plate 2.

  That is, the mounting flat portion 1A and the fixing plate 2 are sandwiched between the head portion 5B of the bolt 5 that passes through the opening 2A of the fixing plate 2 and the supporting protrusion portion 9A of the support body 8, so that the mounting is performed. The member 1 is fixed to the fixed plate 2.

  The guide bar 4 provided perpendicularly to the bottom surface of the mounting flat portion 1A of the mounted member 1 is part of the support 8 of the movable body 6 along with the rotation of the screw rod 5A during the rotation of the bolt 5. Is for abutting and restricting the rotation range of the movable body 6 to determine its direction.

  The self-locking nut 10 screwed near the tip of the screw rod 5A of the bolt 5 has a rubber friction ring 10A fitted on the end of the thread of a metal nut, and can be moved by rotating the bolt 5. It is mounted to prevent the body 6 from being detached from the tip of the screw rod 5A when moving to the tip side of the screw rod 5A.

  Next, a method for attaching the mounted member 1 to the fixing plate 2 using the attachment structure according to the present embodiment will be described.

  First, as shown in the front sectional view of FIG. 4A, the screw rod 5A of the bolt 5 is inserted into the through hole 3 from the surface side of the mounted member 1, and only the large-diameter head 5B is placed on the surface. Expose.

  Next, the head 5B of the bolt 5 is turned with a rotary tool (generally clockwise), and the tip of the screw rod 5A is screwed into the hole of the elastic nut 7 of the movable body 6 so that the movable body 6 is positioned at an intermediate position of the screw rod 5A. Then, the self-locking nut 10 is screwed to the position where the tip of the screw rod 5A protrudes beyond the friction ring 10A.

  Thereafter, the head 5B of the bolt 5 is turned with a rotary tool to move the movable body 6 up and down, and between the back surface of the mounting flat portion 1A of the mounted member 1 and the supporting protrusion 9A of the movable body 6. While making the dimension slightly larger than the thickness dimension of the fixing plate 2, as shown in the bottom view of FIG. 4B, the one side surface 9B of the arm portion 9 of the support 8 is brought into contact with the guide rod 4, The movable body 6 is placed at one end position in the rotation angle range.

  Next, as indicated by an arrow in FIG. 4A, the movable body 6 and the fixed body 2 are provided from the opening 2A provided in a predetermined shape and size (the movable body 6 and the guide rod 4 can pass). The guide bar 4 is passed through the back surface side of the fixed plate 2 and the back surface of the mounting flat portion 1A of the mounted member 1 is superimposed on the fixed plate 2, and then a rotating tool (see FIG. 2 is engaged and the screw rod 5A is rotated (generally clockwise) so that the stopper 9C of the support 8 of the movable body 6 is brought into contact with the guide rod 4, and the movable body 6 is shown in FIG. It is placed at the other end position of the rotation angle range shown.

  Then, in this state, the screw rod 5A is further rotated to bring the movable body 6 closer to the fixed plate 2, and the supporting protrusion 9A is brought into pressure contact with the portion of the back surface of the fixed plate 2 that is not the opening 2A, as shown in FIG. In this state, the mounted member 1 can be fixed to the fixing plate 2.

  At this time, even if a slightly strong rotational force is applied to the bolt 5 to rotate the screw rod 5A and the supporting projection 9A of the movable body 6 is pressed slightly against the back surface of the fixed plate 2, the screw rod 5A is not attached to the mounting member. Since one through-hole 3 is fitted over a length of 1.5 times the diameter or more, the bolt 5 does not tilt and the pressure contact force does not weaken.

  Further, when the mounted member 1 shown in FIG. 1 is fixed to the fixed plate 2, the head 5B of the bolt 5 is movable by rotating the head 5B in the opposite direction (generally counterclockwise) with a rotary tool. The force with which the supporting protrusion 9A of the body 6 presses against the back surface of the fixed plate 2 gradually decreases, and eventually the supporting protrusion 9A moves away from the back surface of the fixed plate 2 and the movable body 6 rotates slightly to stop the stopper 9C. Is separated from the guide bar 4 and one side surface 9B of the arm portion 9 of the support 8 abuts against the guide bar 4, and the movable body 6 has one end position in the rotation angle range shown in FIG. Become.

  In this state, since the supporting protrusion 9A of the movable body 6 is within the range of the opening 2A of the fixed plate 2, the movable body 6 and the guide rod 4 are pulled out to the surface side through the opening 2A, and the member to be mounted 1 can be removed from the fixed plate 2.

  When the head 5B of the bolt 5 is rotated in a direction opposite to the above (generally counterclockwise) with a rotary tool, if the movable body 6 is moved too close to the tip of the screw rod 5A, the movable body Since 6 can hit the self-locking nut 10 and stop its movement, the movable body 6 does not come off the screw rod 5A.

  As described above, according to the mounting structure according to the present embodiment, the screw rod 5A is inserted into the through hole 3 of the mounting flat portion 1A of the mounted member 1 in which the guide rod 4 is provided vertically, and the bolt 5 is inserted. Since the bolt 5 can be screwed into the elastic nut 7 and integrated with the movable body 6 in advance, the surface of the fixed plate can be obtained simply by providing the fixed plate 2 with an opening 2A having a predetermined shape. It can be easily attached only from the side and can be fixed securely.

  In the above description, as shown in FIG. 1, the mounted member 1 is a large switch or instrument case, and the mounting flat portion 1A is the bottom surface, and the guide rod 4 is provided vertically from the back surface. As shown in the front sectional view of the other mounting structure in the mounting structure according to the present embodiment in FIG. 5, there is a mounting plane portion 11A on the side surface of the mounted member 11, and the mounting plane portion. When the wall portion 12 is provided substantially vertically on the back surface side of 11A, the guide rod 14 may be formed using the wall portion 12 provided vertically.

  Even in this case, the configuration of other parts such as the bolt 5 and the movable body 6 and the method of attaching the mounted member 11 to the fixing plate 13 having the large opening 13A are the same as in the above case, so detailed explanation is omitted. With such a configuration, the volume occupied by the mounting member is small on the back surface of the mounting flat portion 11A of the mounted member 11, and the mounting strength can be fixed stably.

  Further, the movable body 6 is also formed by press-fitting a hollow cylindrical elastic nut 7 into the circular hole of the bearing portion 8A of the support 8 as shown in FIG. As shown in the exploded perspective view of the other movable body 15 in the mounting structure according to the form, the outer cross-sectional shape of the intermediate portion in the height direction of the hollow cylindrical shape having a constant height is formed from the circular portion 16A. An elastic nut 16 having an Ω-shape having an opening portion 16B having a narrow width is press-fitted into a Ω-shaped cut 17A having the same dimensions of a support 17 made by punching or bending a metal plate. The movable body 15 may be used.

  When such a movable body 15 is used, an Ω-shaped cross-section portion having an opening portion 16B having a width narrower than the circular portion 16A at an intermediate portion in the height direction of the elastic nut 16 is formed in an Ω-shaped configuration having the same dimensions as the support body 17. Can be press-fitted into the notch 17A and temporarily held in a stable state, and then the screw nut 5A is screwed into the hole of the elastic nut 16 having an inner diameter corresponding to the valley diameter of the screw rod 5A. The elastic nut 16 is firmly pressed against and fixed to the notch 17 </ b> A of the support body 17 so that the outer diameter of 16 is expanded.

  And since the structure and attachment method as the whole attachment structure do not change also with such a movable body 15, detailed description is abbreviate | omitted.

(Second Embodiment)
FIG. 7 is a front sectional view of the mounting structure according to the second embodiment of the present invention, and FIG. 8 is a sectional view taken along the line EE of FIG.

  As shown in the figure, the mounting structure according to the present embodiment has a through-hole 23 and a movable body for fitting and holding the screw rod 5A of the bolt 5 rotatably with respect to the structure described in the first embodiment. 6 is different in that the guide rod 24 for determining the orientation of the mounting member 21 is provided on the base plate 25 fixed in the concave portion 21B on the back surface of the mounting flat portion 21A of the mounted member 21, and the configuration of the other portions is as follows. This is almost the same as the mounting structure according to the first embodiment.

  That is, a slightly thicker mounting flat surface portion 21A of the mounted member 21 is provided with a recess 21B having a round hole 21C larger than the head portion 5B of the bolt 5, and a base plate 25 made of a metal plate is provided therein. Is fixed to the mounting flat portion 21A by a rivet 26, and the screw plate 5A of the bolt 5 is fitted and held on the base plate 25 at a length of 1.5 times or more of its diameter. A through hole 23 in which a cylindrical portion is formed by burring a metal plate, and a guide rod 24 having a substantially rectangular cross section in which a side surface portion of the base plate 25 is bent are integrally provided.

  Then, the movable body 6 in which the screw rod 5A is screwed and held in the hole of the elastic nut 7 and the self-lock nut 10 is screwed near the tip thereof are the same as in the case of the first embodiment. is there.

  Next, a method for attaching the mounted member 21 to the fixed plate 2 using the attachment structure according to the present embodiment will be described.

  First, the screw rod 5A of the bolt 5 is inserted into the through hole 23 of the base plate 25 from the side without the cylindrical portion, the screw rod 5A protrudes toward the cylindrical portion side, and then the head 5B of the bolt 5 is rotated. After turning with a tool, the tip of the screw rod 5A is screwed into the hole of the elastic nut 7 of the movable body 6 to hold the movable body 6 at an intermediate position of the screw rod 5A, and then the self-lock nut 10 is attached to the friction ring 10A. It is the same as in the case of the first embodiment that the screw rod 5A is first screwed to the position where the tip protrudes, but this makes the external perspective view of the mounting block in the mounting structure according to the present embodiment of FIG. A mounting block 27 as shown is made.

  Thereafter, the rivets 26 are passed through the two small holes 27A of the base plate 25 of the mounting block 27, and are fixed on the ceiling surface of the concave portion 21B so as to overlap the mounting flat portion 21A of the mounted member 21.

  The means for fixing the base plate 25 may be other methods such as screwing, but it is necessary to prevent the base plate 25 from protruding beyond the recess 21B.

  Thereafter, the head 5B of the bolt 5 is turned with a rotary tool to move the movable body 6 up and down, and the dimension between the back surface of the mounting flat portion 21A of the mounted member 21 and the supporting protrusion 9A of the movable body 6 is measured. Is made slightly larger than the thickness dimension of the fixed plate 2 and one side surface 9B of the arm portion 9 of the support 8 is brought into contact with the guide rod 24 so that the movable body 6 is brought into one end position of the rotation range. After passing the movable body 6 and the guide bar 4 from the opening 2A of the fixed plate 2 to the back surface side of the fixed plate 2 and superimposing the back surface of the mounting flat portion 21A of the mounted member 21 on the fixed plate 2, The bolt 5 is rotated so that the stopper 9C of the support 8 of the movable body 6 is brought into contact with the guide rod 24, and the movable body 6 is placed at the other end position of the rotation range.

  Then, in this state, the bolt 5 is further rotated to bring the movable body 6 closer to the fixed plate 2, and the supporting protrusion 9A is brought into pressure contact with the portion of the back surface of the fixed plate 2 that is not the opening 2A, as shown in FIG. In the state, the mounted member 21 can be fixed to the fixing plate 2 as in the case of the first embodiment.

  As described above, according to the mounting structure according to the present embodiment, the screw rod 5A of the bolt 5 held in the through hole 23 of the base plate 25 provided with the guide rod 24 is screwed into the elastic nut 7 to be movable. The mounting block 27 including the body 6 can be integrated in advance, and after the mounting block 27 is integrated with the mounted member 21, it is very easy to work only from the surface side of the fixing plate 2. It can be attached to the fixing plate 2 and can be securely fixed.

  The base plate 25 including the through holes 23 and the guide rods 24 is not limited to being made of a metal plate, and may be formed of zinc die casting or a highly rigid resin material.

(Third embodiment)
FIG. 10 is a front sectional view of the mounting structure according to the third embodiment of the present invention.

  As shown in the figure, the mounting structure according to the present embodiment is the same as that described in the second embodiment, except that the mounting flat portion 31A of the mounted member 31 and the fixing plate 2 are left as they are with the mounting block 32. The other parts are configured in the same manner as the mounting structures according to the first and second embodiments.

  That is, the method of attaching the mounted member 31 to the fixed plate 2 using the attachment structure according to the present embodiment is first held by the bolt 5 at one end position of the movable body 6, similar to the opening 2 </ b> A of the fixed plate 2. The mounting flat surface portion 31A of the mounted member 31 provided with the opening 33 through which the movable body 6 and the guide bar 34 can pass is overlapped with the fixed plate 2.

  And the space | interval of the back surface of the base plate 36 of the attachment block 32 and the protrusion 9A for support of the movable body 6 is set to a dimension a little larger than the thickness which united both, and the opening part 33 of the plane part 31A for attachment, The bolt 5 is rotated with the back surface of the base plate 36 of the mounting block 32 overlapped with the mounting flat portion 31A of the mounted member 31 through the opening 2A of the fixing plate 2 and movable. The mounted member 31 is fixed to the fixing plate 2 in the state shown in FIG. 10 by bringing the body 6 close to the fixing plate 2 and press-contacting the supporting protrusion 9A with the portion of the back surface of the fixing plate 2 that is not the opening 2A. What can be done is the same as in the first embodiment and the second embodiment.

  As described above, according to the mounting structure according to the present embodiment, the screw rod 5A of the bolt 5 held in the through hole 36A of the base plate 36 provided with the guide rod 34 is screwed into the elastic nut 7, and the movable body The mounting block 32 integrated in advance including 6 is inserted into the mounting flat portion 31A of the mounted member 31 and the opening 2A of the fixed plate 2 as it is, and the mounted member 31 is fixed to the fixed plate 2. Can do.

  Although detailed description is omitted, the mounting block 32 of the mounting structure according to the present embodiment has a base plate 36 wider than the mounting block 27 of the mounting structure according to the second embodiment, and the screw of the bolt 5. The bar 5A is a little long.

  In the above description, it has been described that the mounting structure is provided only at one place of the mounted member, such as a large switch mounted on the fixed plate or a case of an instrument. It may be provided at two positions on both ends, or one end may be sandwiched by a U-shaped cut or the like, and the other end may be provided with a mounting structure as in the present invention.

  The mounting structure of the member of the present invention allows the mounted member to be easily mounted by work only from the surface side, and can be securely fixed, even when the fixed body is a wall surface that is not so thick. .

  Therefore, when attaching a large switch, controller, instrument case, etc. to a fixed plate such as a wall surface of various facilities, the space inside the fixed plate is narrow or behind other members. Useful.

Front sectional view of the mounting structure according to the first embodiment of the present invention Sectional view taken along line DD in FIG. Exploded perspective view of movable body in the same mounting structure (A) Front sectional view for explaining the mounting method (b) Bottom view for explaining the mounting method Front sectional view of another mounting structure in the same mounting structure Exploded perspective view of another movable body in the mounting structure Front sectional view of the mounting structure according to the second embodiment of the present invention Sectional drawing in the EE line of FIG. External perspective view of mounting block in the same mounting structure Front sectional view of the mounting structure according to the third embodiment of the present invention Main part exploded perspective view of conventional mounting structure Front sectional view Front sectional view explaining the mounting state

Explanation of symbols

1, 11, 21, 31 Mounted member 1A, 11A, 21A, 31A Mounting flat part 2, 13 Fixing plate 2A, 13A, 33 Opening part 3, 23, 36A Through hole 4, 14, 24, 34 Guide bar 5 Bolt 5A Screw rod 5B Head 6,15 Movable body 7,16 Elastic nut 8,17 Support 8A Bearing 9 Arm 9A Supporting projection 9B One side 9C Stopper 10 Self-locking nut 10A Friction ring 12 Wall 16A Circular Part 16B Opening part 17A Notch 21B Recessed part 21C Round hole 25, 36 Base plate 26 Rivet 27, 32 Mounting block 27A Small hole

Claims (9)

A mounted member having a mounting plane portion;
It consists of a large-diameter head having an engaging part with a rotary tool and a fixed-diameter screw rod with a fixed length, and fitted into a through-hole provided in the mounting flat part of the mounted member, A bolt held so that the head is exposed on the front surface and the screw rod protrudes vertically on the back surface;
A cylindrical elastic nut made of a flexible resin or hard rubber having a hole with an inner diameter corresponding to the valley diameter of the threaded rod of the bolt, a bearing portion in which the elastic nut is fitted, and the bearing portion The support rod is made of a rigid material having a certain length of arm portion provided with a support protrusion at the tip, and the screw rod is screwed into the hole of the elastic nut and held by the bolt. A movable body,
Provided integrally and vertically from the back surface of the mounting flat portion of the mounted member so that a part of the movable body abuts when the screw rod of the bolt rotates and the rotation range is regulated to determine the direction. A guide bar,
The movable body is composed of a fixed plate having an opening through which the movable body held by the bolt and the guide rod can pass at one end position of the movable body,
The gap between the back surface of the mounting flat portion of the mounted member and the support protrusion of the movable body is set to be larger than the thickness of the fixed plate, and the opening is in a state where the movable body is at one terminal position. The movable body and the guide rod are passed through the fixed plate back surface side, the back surface of the mounting flat portion of the mounted member is overlaid on the fixed plate, and the rotary tool is engaged with the large-diameter head of the bolt. Then, the screw rod is rotated so that the movable body is brought close to the fixed plate with the movable member in the other end position, and the supporting protrusion is moved to a portion that is not an opening on the back surface of the fixed plate. A member mounting structure, wherein the attached member is fixed to the fixing plate by press-contacting. The member mounting structure according to claim 1, wherein the guide rod is formed using a wall portion provided substantially perpendicularly to the back side of the mounting flat portion of the mounted member. A mounted member having a mounting plane portion;
A large-diameter head having an engaging portion with a rotary tool and a fixed-length screw rod having a predetermined length, and is provided on a base plate disposed to overlap the mounting flat portion of the mounted member. A bolt that is fitted in the through-hole, and is held so that the head is exposed on the front surface and the screw rod protrudes vertically on the back surface;
From the flexible resin or hard rubber cylindrical nut formed with a hole having an inner diameter corresponding to the valley diameter of the screw rod of the bolt, a bearing portion in which the elastic nut is fitted, and the bearing portion A movable support body made of a rigid material having an arm portion of a certain length, which is extended and provided with a support projection at the tip, and is held by the bolt by screwing the screw rod into the hole of the elastic nut. Body,
A guide bar provided vertically on the back side of the base plate so that a part of the movable body abuts upon rotation of the screw rod of the bolt and the rotation range is regulated to determine the direction;
The movable body is composed of a fixed plate having an opening through which the movable body held by the bolt and the guide rod can pass at one end position of the movable body,
The distance between the back surface of the base plate and the protrusion for supporting the movable body is set to a predetermined size, and the movable body and the guide rod are fixed from the opening in a state where the movable body is at one end position. After passing through the back side of the plate, the back surface of the mounting flat portion of the mounted member is overlaid on the fixed plate, and then the screw rod is rotated by engaging the rotary tool with the large-diameter head of the bolt. Then, with the movable body in the other end position, the movable body is brought close to the fixed plate, and the supporting projection is pressed against a portion of the back surface of the fixed plate that is not an opening, thereby mounting A member mounting structure, wherein the member is fixed to the fixing plate. The base plate including the fixing means including the fixing means is installed in the recess on the back side of the mounting flat portion of the mounted member having a round hole larger than the bolt head. Fixing the flat surface portion so that it does not come out from the back surface, and setting the distance between the back surface of the mounting flat surface portion and the projecting portion for supporting the movable body to be larger than the thickness of the fixed plate, The member mounting structure according to claim 3, wherein the back surface of the flat portion is overlapped with the fixing plate. The mounting flat portion of the mounted member is overlaid on the fixed plate, and has an opening through which the movable body held by a bolt and a guide rod can pass through at one end position of the movable body, The distance between the back surface of the base plate wider than the opening and the supporting protrusion of the movable body is set to a dimension larger than the combined thickness of the mounting flat portion and the fixed plate, and the mounting flat portion The member mounting structure according to claim 3, wherein the member mounting structure is superposed on a surface. The mounting flat portion of the mounted member or the length that the through-hole provided in the base plate disposed to overlap the mounting flat portion is fitted to the screw rod of the bolt is the diameter of the screw rod. The member mounting structure according to claim 1, wherein the member mounting structure is 1.5 times or more. 4. The member according to claim 1, wherein a self-locking nut is mounted at a position where a tip of a screw rod of the bolt is fixed to an end of an engaging portion with an elastic nut of the movable body. 5. Mounting structure. The movable body is a hollow cylindrical shape having a constant height, and an elastic nut having a ratio of the outer diameter to the inner diameter of 1.5 to 3.5 is press-fitted into the circular hole of the main body having an inner diameter equal to the outer diameter. The member mounting structure according to claim 1, wherein the member mounting structure is formed. The movable body is a hollow cylindrical shape having a constant height, the ratio of the outer diameter to the inner diameter is 1.5 to 3.5, and the outer cross-sectional shape of the intermediate portion in the height direction is narrower than the circular portion. 4. The member according to claim 1, wherein an elastic nut having an Ω-shape having a shape is press-fitted into a Ω-shaped notch of the same size as the support. 5. Mounting structure.

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