JP2007218000A - Panel fixing mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a panel fixing mechanism which can improve the workability of the attachment/detachment of a panel, and the reliability of the fixing of the panel. <P>SOLUTION: This panel fixing mechanism 50 for detachably fixing the panel 40 to a fixing member 45 comprises: a screw member 22 which has a head 22a and a male screw part 22c for fixing the panel 40; a cap member 26 which is joined to the side of the fixing member 45 with respect to the screw member 22, inside which a space is provided, and in which a female screw part 26c for being screw-fastened to the male screw part 22c is formed in a closing plate part 26b at an end on the side of the screw member 22; an elastic member 28 which is housed in the space, and expanded/contracted in the height direction of the cap member 26; and an engaging member 30 which is provide at the screw member 22 side end of the elastic member 28, and engaged with the leading end of the screw member 22. Thus, the workability of the attachment/detachment of the panel, and the reliability of the fixing of the panel can be improved. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a panel fixing mechanism used for fixing a panel to a fixing member, such as a plurality of free access floor panels constituting a free access floor laid on a floor portion of a clean room or an office room, for example. is there.

  As a conventional panel fixing mechanism, there exists a thing as described in the following patent document 1, for example. In this conventional panel fixing mechanism, the panel fixing bracket 3 shown in FIG. 3 of Patent Document 1 is inserted into the hole 1a of the panel 1 as shown in FIG. From the temporarily mounted state, the head 5a of the lock pin 5 is pushed downward, and the head 7b of the lock bolt 7 and the engagement pins 7a, 7a are formed into an oval hole 12a of the receiving portion 12 (see FIG. )), And the lock pin 5 is rotated clockwise so that the engaging pins 7a and 7a enter the lower side of the short diameter portion of the oval hole 12a of the receiving portion 12 and the lower surface of the receiving portion 12 Is attached (see FIG. 5B of Patent Document 1).

At this time, the urging force generated by compressing the compression coil spring 6 in the axial direction acts to bring the sleeve 4 and the engagement pins 7a and 7a closer to each other. Can be fixed to the receiving portion 12 side. With this configuration, the panel can be attached and detached in a short time using the one-touch method, compared with the case where the panel is attached and detached by rotating the screw member a long distance from the beginning to the end of the screw. The workability of the attachment / detachment can be improved.
Japanese Patent No. 3422934

  However, in the conventional panel fixing mechanism as described above, when the engaging pin 7a is missing or lost, the lock bolt 7 is disengaged from the receiving portion 12, and the head 4b of the sleeve 4 is removed. However, there is a problem in that the panel 1 cannot be fixed because the force for suppressing the panel 1 to the receiving portion 12 side is lost.

  Further, the panel 1 is pressed and fixed to the receiving portion 12 side by the urging force generated by compressing the compression coil spring 6 in the axial direction thereof, so that the panel 1 is subjected to an earthquake or the like larger than the urging force. When an external force is applied, the panel 1 overcomes the urging force and separates from the receiving portion 12 and floats above the panel 1, which makes it impossible to stably and firmly fix the panel 1. .

  Therefore, in view of the above problems, the present invention has an object to provide a panel fixing mechanism that can improve the workability of attaching and detaching the panel and can improve the reliability in fixing the panel. To do.

In order to solve the above problems, the present invention
A panel fixing mechanism for detachably fixing a panel to a fixing member,
A screw member having a head and a male screw for fixing the panel;
A cap member that is joined to the fixing member side with respect to the screw member, has a space inside, and has a female screw portion that is screwed to the male screw portion on the closing plate portion of the end portion on the screw member side;
An elastic member housed in the space and extending and contracting in the axial direction of the cap member;
It is provided with the engaging member which is provided in the edge part by the side of the screw member of the elastic member, and engages with the tip part of the screw member.

  The cap member of the present invention is characterized in that the position of the cap member can be adjusted in a direction perpendicular to the axial direction of the cap member.

  Moreover, the present invention is characterized in that the male screw portion and the female screw portion are formed by multiple threads.

  Further, the present invention is characterized in that an engaging portion and a small-diameter portion that can be engaged with the engaging member are formed at a tip portion of the screw member.

According to the present invention as described above,
A panel fixing mechanism for detachably fixing a panel to a fixing member,
A screw member having a head and a male screw for fixing the panel;
A cap member that is joined to the fixing member side with respect to the screw member, has a space inside, and has a female screw portion that is screwed to the male screw portion on the closing plate portion of the end portion on the screw member side;
An elastic member housed in the space and extending and contracting in the axial direction of the cap member;
Provided with an engagement member that is provided at an end of the elastic member on the screw member side and engages with a tip of the screw member;
The workability of attaching and detaching the panel can be improved, and the reliability in fixing the panel can be improved.

  In the panel fixing mechanism of the present invention, the cap member is provided so that its position can be adjusted in a direction perpendicular to the axial direction of the cap member, so that the panel can be securely attached even if the mounting position on the panel is slightly shifted. It can fix and can improve workability of panel attachment or detachment.

  Further, in the panel fixing mechanism of the present invention, since the male screw portion and the female screw portion are formed by multiple threads, the distance traveled per rotation of the screw member can be increased, so that the workability of panel attachment / detachment is improved. be able to.

  Further, in the panel fixing mechanism of the present invention, the engaging portion and the small-diameter portion that can be engaged with the engaging member are formed at the distal end portion of the screw member, thereby engaging the moving direction when the screw member is attached or detached. The part can guide and improve the workability of the panel attachment / detachment.

Hereinafter, the best mode for carrying out the panel fixing mechanism according to the present invention will be specifically described with reference to the drawings.
FIGS. 1-8 is a figure referred in order to demonstrate the panel fixing mechanism 50 which concerns on one embodiment of this invention.

  As shown in FIG. 1, the panel fixing mechanism 50 according to the present embodiment is used for fixing the panel 40 for the free access floor to the fixing member 45, and stands on the screw member 22 and the bottom plate 24. A cap member 26 installed and joined to the screw member 22; a compression coil spring 28 (elastic member) housed in a space in the cap member 26; and a throttle washer 30 (engagement member) provided at the upper end of the compression coil spring 28 ). These members are all made of metal.

As the fixing member 45, the same one as the square pipe 2 shown in FIG.
As the fixing member, in addition to the fixing member 45 using a square pipe, a support leg 52 shown in FIG. 11 of Patent Document 1 is used, and the upper end portion of such a support leg is used. A panel fixing mechanism 50 may be provided on the panel to fix the panel 40.

  As shown in FIG. 2, the bottom plate 24 is formed in a substantially square shape, and one cap member 26 is disposed at each of the four corners. As will be described later, a double thread 22c, which is a male screw portion of the screw member 22 shown in FIG. 7B, is screwed to the female screw portion 26c of the cap member 26 shown in FIG. 4B. ing.

  By the way, the vertical and horizontal two-dot chain lines in FIG. 2 indicate the boundaries of the corners of the four free access floor panels 40 adjacent to each other, so that the cap members 26 are arranged at the corners of the panels 40. It can be seen from this figure that

  As shown in FIGS. 3 and 4, a flange portion 26 a is formed at the lower end portion of the cap member 26 so as to expand outward in the radius. As shown in FIG. 3, the flange portion 26 a is arranged in a space formed between the bottom plate 24 and the surface plate 32 and is not fixed.

  As shown in FIG. 3, an intermediate plate 34 is sandwiched between the bottom plate 24 and the surface plate 32 and is integrally fixed to the bottom plate 24 and the surface plate 32 by a screw member (not shown). Since the intermediate plate 34 has a thickness slightly larger than the thickness of the flange portion 26a of the cap member 26, the flange portion 26a of the cap member 26 is not restrained so as not to move in the horizontal direction.

  As shown in FIG. 5A, the surface plate 32 has a larger diameter than the cylindrical portion of the cap member 26 into which the respective cylindrical portions of the four cap members 26 are inserted at four positions inside the four corners. Since the long hole 32a is formed, the cylinder part can move in the long hole 32a in a direction perpendicular to the axial direction of the cap member 26. Further, in the vicinity of the center of each of the four sides of the peripheral portion of the surface plate 32, a plate-like shape (not shown) separate from the screw member 22 that integrally fixes the three plates 24, 32, 34. The dish-shaped head portion of the second screw member having the head portion is fitted, and a dish-shaped recessed hole 32b through which the screw portion is inserted is formed.

  Further, in the center portion of the surface plate 32, the three plates 24, 32, 34 for fixing the three plates 24, 32, 34 to a beam-shaped square pipe (fixing member) (not shown) below the bottom plate 24 are provided. The dish-shaped recessed hole 32b into which the dish-shaped head of a third screw member having a dish-shaped head (not shown) that is slightly larger than the two-screw member is fitted and the threaded part is inserted. A slightly larger dish-shaped recessed hole 32c is formed.

  As shown in FIG. 5 (b), the intermediate plate 34 accommodates the flange portions 26a of the four cap members 26 at four positions inside the four corners, and has a deformed hole 34a having a larger area than the flange portion 26a. Is formed. In addition, in the vicinity of the center of each of the four sides of the peripheral portion of the intermediate plate 34, an insertion hole 34b through which the screw portion of the second screw member for integrally fixing the three plates 24, 32, 34 is inserted. Is formed.

  Further, an insertion hole 34c through which the screw portion of the third screw member for fixing the three plates 24, 32, 34 to the lower square pipe of the bottom plate 24 is inserted in the center portion of the intermediate plate 34. Is formed.

  As shown in FIG. 5 (c), the screws of the second screw member that integrally fix the three plates 24, 32, and 34 in the vicinity of the center of each of the four sides of the peripheral portion of the bottom plate 24. A screw hole 24b is formed in which the tip portion is screwed. In addition, an insertion hole 24c through which the screw portion of the third screw member is inserted in the center portion of the bottom plate 24 is for fixing the three plates 24, 32, 34 to the square pipe on the lower side of the bottom plate 24. Is formed. The screw tip portion of the third screw member is screwed into a screw hole formed in the lower square pipe of the bottom plate 24.

  As shown in FIG. 4B, the cap member 26 has a flange portion 26a formed at the lower end portion thereof, and a central portion of a closing plate portion 26b formed at the upper end portion thereof by, for example, drawing. In addition, a screw hole having a female screw portion 26c is formed in the peripheral portion. As shown in FIG. 3, the space inside the cap member 26 accommodates a compression coil spring 28 and a throttle washer 30 (engagement member) that is fitted to the upper end of the compression coil spring 28. It has come to be.

  As shown in FIG. 6, the throttle washer 30 has an outer cylinder part 30 a that fits outside the upper end part of the compression coil spring 28, and an inner part formed radially inward from the outer cylinder part 30 a via the upper surface part 30 d. And an engagement hole 30c is formed inside the inner cylinder portion 30b.

  As shown in FIG. 7, the screw member 22 screwed to the cap member 26 is formed with a head portion 22a having a circular plane and a height, and a tool such as a minus screwdriver is formed on the upper surface of the head portion 22a. Is formed with a groove 22b. In the middle of the length of the shaft portion of the screw member 22, a double thread 22c (male screw portion) is formed. And the small diameter part 22d and the step part 22e (engagement part) are formed in the front-end | tip part of the said axial part.

  As shown in FIG. 8, the screw member 22 is lowered from above the cap member 26, and the tip portion thereof is inserted into the internal space from the screw hole having the female screw portion 26 c of the cap member 26, so that the small diameter of the tip portion is obtained. The portion 22d is fitted into the engagement hole 30c of the throttle washer 30 provided at the upper end portion of the compression coil spring 28, and the step portion 22e formed adjacent to the upper end portion of the small diameter portion 22d is the upper surface portion of the throttle washer 30. 30d is brought into contact with and engaged (see the right half in FIG. 1).

  Then, the head portion 22a of the screw member 22 is pushed downward and rotated by a tool such as a screwdriver engaged with the groove portion 22b, and the double thread screw 22c is screwed to the female screw portion 26c of the cap member 26. Thus, the panel 40 can be fixed on the surface plate 32 (see the left half in FIG. 1).

  When it is desired to remove the panel 40 from the top surface plate 32, the screw member 22 is rotated in the opposite direction to that when the panel 40 is fixed, so that the double screw 22c is screwed with the female screw portion 26c of the cap member 26. Detach from fastening. Then, the screw member 22 is instantaneously pushed upward by the urging force stored by compression in the compression coil spring 28, and the head 22 a protrudes above the upper surface of the panel 40.

  Then, the screw member 22 is picked up with a finger, the small diameter portion 22d is pulled out from the engaging hole 30c of the throttle washer 30, and the tip end portion is pulled upward through the screw hole of the cap member 26, whereby the panel 40 is removed. Can be easily removed.

  On the other hand, the flange portion 26a of the cap member 26 is accommodated in a deformed hole 34a formed in the intermediate plate 34 and having a larger area than the flange portion 26a, and the thickness of the intermediate plate 34 is larger than the thickness of the flange portion 26a. The cap member 26 can move on the bottom plate 24 in a direction perpendicular to the axial direction thereof by being thick and loosely fitting the cylindrical portion of the cap member 26 into the elongated hole 32a of the larger surface plate 32, The position can be adjusted.

  For this reason, even if the center position of the panel fixing hole 40a (see FIG. 1) formed in the panel 40 through which the screw member 22 is inserted slightly deviates from the center position of the cap member 26, the cap member 26 By being able to move in the horizontal direction so as to adjust the position, the center positions of the panels can be matched, and the panel 40 can be reliably fixed on the surface plate 32 of the panel fixing mechanism 50.

  In addition, the panel fixing mechanism 50 according to the present embodiment is configured so that the double thread 22c of the screw member 22 and the female thread portion 26c of the screw hole of the cap member 26 are formed by the double thread. The distance traveled per rotation (lead) can be increased.

  In addition, the panel fixing mechanism 50 according to the present embodiment includes a step 22e (engagement portion) that can be engaged with the throttle washer 30 at the upper end of the compression coil spring 28 at the lower end of the screw member 22, and the throttle washer 30. By forming the small-diameter portion 22d that fits into the engagement hole 30c, the compression coil spring 28 does not bend (does not buckle) when the screw member 22 moves up and down, so that the height when the screw member 22 is attached or detached can be reduced. It can be guided so that the movement in the vertical direction is straight.

  Here, the panel fixing mechanism 50 according to the present embodiment locks the engaging pins 7a, 7a to the lower side of the short diameter portion of the oval hole 12a of the receiving portion 12 as in the conventional panel fixing mechanism. Unlike the case where the panel is fixed, the panel 40 is fixed on the surface plate 32 by screwing the double thread 22c of the screw member 22 to the female screw portion 26c of the cap member 26. The conventional engagement pins 7a, 7a are not broken and the panel cannot be fixed, and the panel is stably and firmly secured by screw fastening between the double thread screw 22c and the female screw portion 26c. 40 can be fixed.

  Further, the panel fixing mechanism 50 according to the present embodiment is different from the conventional panel fixing mechanism in which the compression coil spring 6 is compressed and the panel is pressed and fixed by the urging force generated by the compression. The panel 40 is fixed by screwing the double thread 22c of the screw member 22 to the female screw portion 26c of the cap member 26.

  For this reason, even if an external force larger than the urging force of the compression coil spring 28 is applied to the panel 40 due to an earthquake or the like, the panel 40 does not float up due to the external force. When the screw member 22 is removed from the cap member 26, the compression coil spring 28 of the panel fixing mechanism 50 according to the present embodiment is used to instantaneously push the screw member 22 upward by its urging force.

As described above, according to the panel fixing mechanism 50 according to the present embodiment, the screw member 22 may be pushed downward by a predetermined length and then tightened by a slight length. Since the screw member 22 can be attached and detached, the workability of attaching and detaching the panel can be improved.
Moreover, since the fixing force of the panel 40 can be prevented from being lost or reduced for some reason, the reliability in fixing the panel can be improved.

  Further, according to the panel fixing mechanism 50 according to the present embodiment, the cap member 26 is provided so that its position can be adjusted in the direction perpendicular to the axial direction, so that the mounting position on the panel 40 is slightly deviated. Since the panel 40 can be reliably fixed on the bottom plate 24, workability of attaching / detaching the panel 40 can be improved.

  Further, according to the panel fixing mechanism 50 according to the present embodiment, the double thread 22c of the screw member 22 and the female thread portion 26c of the screw hole of the cap member 26 are formed by multiple threads, so that the screw member 22 Since the distance traveled per rotation can be increased, workability for attaching and detaching the panel can be improved.

  In addition, according to the panel fixing mechanism 50 according to the present embodiment, the screw member 22 can be attached and detached by forming the step portion 22e and the small-diameter portion 22d that can be engaged with the diaphragm washer 30 at the lower end portion of the screw member 22. Since the moving direction at the time can be guided straight, the workability of attaching and detaching the panel can be improved.

  In the above embodiment, the groove 22b for engaging the flathead screwdriver is formed on the upper surface of the head 22a of the screw member 22. However, in order to use other screw rotating tools, the groove 22b is formed on the upper surface of the head 22a. You may change the shape formed.

  In the above embodiment, the case where the present invention is applied to a panel for a free access floor has been described. However, the panel need not be limited to a panel for a free access floor, and is used for other purposes. It can also be applied to.

  Moreover, in the said embodiment, although the case where each board, such as the baseplate 24 of the panel fixing mechanism 50, was arrange | positioned in a horizontal direction was demonstrated, a panel fixing mechanism is arranged so that those each board may be arrange | positioned in a perpendicular direction. It is also possible to attach 50 to a vertical surface such as a wall and fix the panel 40 to the vertical surface. Alternatively, the panel 40 can be attached to a place such as a ceiling via the panel fixing mechanism 50.

  In the above-described embodiment, the compression coil spring 28 is used as an elastic member. However, the present invention is not limited to this. Instead, other types of elastic members such as plastic synthetic rubber and leaf springs are used. It can also be used.

  In the above-described embodiment, the case where the double thread is used for the male screw portion of the screw member 22 and the female screw portion 26c of the cap member 26 has been described. However, the male screw portion of the screw member 22 and the female screw portion 26c of the cap member 26 It is not necessary to limit to a 2 thread | sled | screw, and a 1 thread | sled | screw or a multiple thread | sled more than 3 may be used.

  Moreover, in the said embodiment, although the component used the metal thing, respectively, if it has sufficient intensity | strength, the component which comprises a panel fixing mechanism may be formed also with materials other than a metal. it can.

  Moreover, in the said embodiment, although each said plate 24,32,34 was fixed so that they might be mutually integrated by fastening those four places with a screw member, those fixed places are limited to four places. It is not limited to this, and it may be 3 or less or 5 or more.

  Further, fixing means other than the above screw members may be used. For example, the respective plates 24, 32, and 34 are fastened together by other fixing means such as rivets so that the plates are integrated. It may be fixed to.

  In the embodiment, each of the plates 24, 32, and 34 is fixed to the fixing member 45 of the square pipe below the bottom plate 24 with a screw member at one central portion thereof. It is not limited to, and may be fixed at two or more locations.

  In the above embodiment, the case where the bottom plate 24 and the intermediate plate 34 are separate members has been described. However, the bottom plate 24 and the intermediate plate 34 may be integrally formed. For example, the bottom plate 24 can be omitted by forming the deformed hole 34a of the intermediate plate 34 into a concave shape by drawing. At this time, since it is a condition that a space is formed so that the flange portion 26a of the cap member 26 is not constrained, the shape of the recess does not necessarily have to be an irregular shape such as the deformed hole 34a.

  Alternatively, the surface plate 32 and the intermediate plate 34 may be integrally formed. For example, by providing a convex portion or a bent portion on the outer peripheral portion of the surface plate 32, it is possible to form a space that does not restrain the flange portion 26a of the cap member 26, and as a result, the intermediate plate 34 is formed. Can be omitted.

It is side surface sectional drawing of the panel fixing mechanism 50 which concerns on one embodiment of this invention, the right half part in a figure shows the state before fixing the panel 40, and the left half part in the figure is when the panel 40 is fixed. It is a figure which shows a state. 2A and 2B are views showing a state in which the screw member 22 of the panel fixing mechanism 50 shown in FIG. 1 is omitted, FIG. 2A being a top view thereof, and FIG. It is AA arrow sectional drawing of the state which abbreviate | omitted the screw member 22 of the panel fixing mechanism 50 shown to Fig.2 (a). FIG. 4A is a top view, FIG. 4B is a side cross-sectional view, and FIG. 4C is a bottom view. It is a figure which shows each board of the panel fixing mechanism 50 integrally attached on the fixing member 45 of a square pipe from the top, FIG.5 (a) is a top view of the surface board 32, FIG.5 (b) is an intermediate | middle. FIG. 5C is a top view of the bottom plate 24. FIG. FIG. 6A is a top view thereof, FIG. 6B is a side sectional view thereof, and FIG. 6C is a bottom view thereof. It is a figure which shows the screw member 22, FIG. 7 (a) is the top view, FIG.7 (b) is the side view. FIG. 6 is an exploded side cross-sectional view for explaining an assembling procedure of the screw member 22, the cap member 26, the throttle washer 30, and the compression coil spring 28.

Explanation of symbols

22 screw member 22a head portion 22b groove portion 22c double thread screw 22d small diameter portion 22e step portion 24 bottom plate 24b screw hole 24c insertion hole 26 cap member 26a flange portion 26b closing plate portion 26c female screw portion 28 compression coil spring 30 throttle washer 30a outer cylinder portion 30a Inner cylinder portion 30c Engagement hole 32 Surface plate 32a Long hole 32b Dish-like recess hole 32c Dish-like recess hole 34 Intermediate plate 34a Deformed hole 34b Insertion hole 34c Insertion hole 40 Panel 45 Fixing member 50 Panel fixing mechanism

Claims (4)

A panel fixing mechanism for detachably fixing a panel to a fixing member,
A screw member having a head and a male screw for fixing the panel;
A cap member that is joined to the fixing member side with respect to the screw member, has a space inside, and has a female screw portion that is screwed to the male screw portion on the closing plate portion of the end portion on the screw member side;
An elastic member housed in the space and extending and contracting in the axial direction of the cap member;
A panel fixing mechanism, comprising: an engaging member that is provided at an end of the elastic member on the screw member side and engages with a tip of the screw member.   The panel fixing mechanism according to claim 1, wherein the cap member is provided so that its position can be adjusted in a direction perpendicular to the axial direction of the cap member.   The panel fixing mechanism according to claim 1, wherein the male screw portion and the female screw portion are formed by multiple threads. 4. The panel fixing mechanism according to claim 1, wherein an engagement portion and a small-diameter portion that can be engaged with the engagement member are formed at a distal end portion of the screw member. 5.

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