JP4978989B2 - Panel fixing mechanism - Google Patents

Description

  The present invention fixes, for example, a plurality of floor panels, which are laid on a floor portion of a clean room, an office room, etc., constituting a free access floor configured by providing a space between a concrete floor surface to the supporting means. It is related with the panel fixing mechanism used in order to support.

  Conventionally, when a dimensional accuracy is not so good, for example, when using a panel such as a concrete panel, the corners of the four concrete panels are simultaneously pressed and fixed from above with the heads of bolts with heads. At this time, there is a problem that the concrete panel having the thinner fixed portion among the four sheets may be rattled up and down between the lower surface of the head and the support surface of the adjusting table. If there are three panels, there will be a three-point contact and there will be no backlashing panel. However, if there are four panels, backlashing may occur at the fixed part of any panel.

  Therefore, as a conventional panel fixing mechanism for solving such a problem, for example, as shown in FIGS. 14 and 15, panel support legs 7 for fixing and supporting each corner of four panels 5 are provided. There exists what provided the buffer member 10 (rubber member etc.) which has elasticity on the adjustment stand 7a of the upper part (refer patent document 1). In FIG. 14, the panel support leg 7 is erected on the concrete floor 8.

In such a conventional panel fixing mechanism, as shown in the figure, the panel 5 is placed on the buffer member 10 provided on the adjustment base 7a, and the screw portion 12a of the fixing member 12 is placed on the adjustment base 7a. By fastening the panel 5 by fastening it to the screw hole 7b in the center portion, when a person walks on the panel 5, carries an object or places an object, the panel 5 rattles or squeaks, etc. It is intended to prevent the occurrence of.
No. 7-40026

  However, since such a conventional panel fixing mechanism has a structure in which the buffer member 10 is disposed below the panel 5, it rests on the panel 5 in addition to the weight of the panel 5 itself. Since the entire weight of the person or the object is applied to the buffer member 10, the buffer member 10 is placed in a state where the buffer member 10 is liable to deteriorate.

  Thus, when the buffer member 10 is bent, its elasticity and resilience are lost, and when there is a difference in the thickness direction of each panel 5, the buffer member 10 reduces the difference in elasticity and resilience. Therefore, there is a problem that the panel 5 having a smaller thickness cannot be pressed down and the panel cannot be prevented from rattling.

  Therefore, in view of the above-described problems, the present invention provides a panel fixing mechanism that can prevent the shock-absorbing member from being loosened and preventing its elasticity and resilience from being lost, thereby preventing the panel from rattling. This is a problem.

In order to solve the above problems, the panel fixing mechanism of the present invention is
A fixing member having a head portion and a screw portion for removably fixing the panel;
Panel having a panel supporting portion that supports interposed therebetween fixed panels between the head of the fixing member, and a fastening portion to which the screw portion is formed on the projecting portion extending upward from the panel supporting part is fastened And supporting means,
The head of the fixing member has a small head formed continuously at the center of the screw portion and a large head arranged to wrap the small head outside the small head. Have
The large head is a shock-absorbing member having an elastic protrusion that abuts against the panel on the lower surface side thereof .

  The panel fixing mechanism of the present invention is characterized in that the elastic protrusions of the buffer member are formed in a substantially annular shape centering on the intersection of the boundary lines between the panels.

  The panel fixing mechanism of the present invention is characterized in that the elastic protrusions of the buffer member are formed in a substantially spiral shape centering on the intersection of the boundary lines between the panels.

  The panel fixing mechanism according to the present invention is characterized in that the elastic protrusions of the buffer member are formed substantially radially around the intersection of the boundary lines between the panels.

  The panel fixing mechanism of the present invention is characterized in that the elastic protrusions of the buffer member are non-uniformly arranged.

  The panel fixing mechanism of the present invention is characterized in that the elastic protrusions of the buffer member have different heights depending on each position.

  The panel fixing mechanism of the present invention is characterized in that the elastic protrusion of the buffer member has different hardness depending on each position.

According to such a panel fixing mechanism of the present invention,
A panel that has a fixing member having a head portion and a screw portion for removably fixing the panel, and a fastening portion to which the screw portion is fastened, and supports the panel fixed by being sandwiched between the head portion of the fixing member. A support member, and a buffer member having an elastic protrusion between the head of the fixing member and the panel.
It is possible to prevent the shock absorber from sagging and losing its elasticity and resilience, thereby preventing the panel from rattling.

  Further, in the panel fixing mechanism of the present invention, by forming the buffer member integrally with the head of the fixed member, it is possible to prevent the buffer member from leaning and losing its elasticity and resilience. In addition, an increase in the number of parts can be prevented.

  Further, in the panel fixing mechanism of the present invention, by providing the buffer member integrally with the panel, it is possible to prevent the buffer member from sagging and losing its elasticity and resilience, and the number of parts increases. This can be prevented.

  Further, in the panel fixing mechanism of the present invention, the elastic protrusions of the buffer member are formed in a substantially ring shape centering on the intersection of the boundary lines between the panels, so that the buffer member is bent and elastic and restorable. In addition to preventing loss, even when the buffer member is formed integrally with the head of the fixing member and rotated together with the fixing member, the possibility that the buffer member is distorted can be reduced.

  Further, in the panel fixing mechanism of the present invention, the elastic protrusions of the buffer member are formed in a substantially spiral shape centering on the intersection of the boundary lines between the panels, so that the buffer member is bent and elastic or restorable. In addition, it is possible to reduce the possibility that the buffer member is distorted even when the buffer member is formed integrally with the head of the fixing member and rotates together with the fixing member.

  Further, in the panel fixing mechanism of the present invention, the elastic protrusions of the buffer member are formed in a substantially radial shape centering on the intersection of the boundary lines between the panels, so that the buffer member is bent and has elasticity and resilience. It is possible to prevent the panel from being loosened by preventing it from being lost.

  Further, in the panel fixing mechanism according to the present invention, the elastic protrusions of the buffer member are non-uniformly arranged, so that the buffer member is prevented from falling and its elasticity and resilience are lost, and the panel is loose. In addition to being able to prevent this, even when the thickness accuracy of the portion of the panel to which it is fixed varies, the elastic protrusions absorb the variation and securely fix the panel. be able to.

  Further, in the panel fixing mechanism of the present invention, the elastic protrusions of the buffer member have different heights depending on each position, so that the buffer member is prevented from sunk and loses its elasticity and resilience. In addition to preventing the occurrence of rattling, even when there is a variation in the thickness accuracy of the portion of the panel to which it is fixed, the variation is absorbed by the elastic deformation of the elastic protrusion and the panel is removed. It can be fixed securely.

  Further, in the panel fixing mechanism of the present invention, the elastic protrusions of the buffer member have different hardness depending on each position, thereby preventing the buffer member from being lost and losing its elasticity and resilience. In addition to preventing the occurrence of rattling, even when there is a variation in the thickness accuracy of the portion of the panel to which it is fixed, the variation is absorbed by the elastic deformation of the elastic protrusion and the panel is removed. It can be fixed securely.

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 to 12 are views referred to for describing a panel fixing mechanism 50 according to an embodiment of the present invention.

  As shown in FIGS. 1 to 3, a panel fixing mechanism 50 according to the present embodiment is used to fix a concrete panel 40 for a free access floor, and is a head that fixes the panel 40 in a detachable manner. A panel support leg that has a fixing bolt 45 (fixing member) having a portion 48 and a male screw portion 46 and a screw hole to which the male screw portion 46 is fastened, and is fixed and supported by sandwiching the panel 40 between the head portion 48. 47 (panel support means).

  As shown in FIGS. 2 and 3, the concrete panel 40 is disposed between the plate-shaped head portion 48 of the fixing bolt 45 and the adjustment base 52 included in the panel support leg 47, and the male screw portion 46 included in the fixing bolt 45. Is screwed into a screw hole 52b (fastening portion, see FIGS. 4 and 6) formed in the upper part of the axis of the adjustment base 52, so that the plate-like head 48 of the fixing bolt 45 and the circle of the adjustment base 52 are provided. It is sandwiched and fixed between the plate-like panel support portions 52a.

  The head 48 of the fixing bolt 45 is preferably formed in a plate shape as in the present embodiment in order to make the floor surface formed by the upper surface of the fixing bolt 45 a flat surface without unevenness. The head 48 does not necessarily have to satisfy the plate-like concept as long as the effects of the invention can be exhibited.

  When the concrete panel 40 is fixed in this way, the lower surface of the panel 40 is brought into contact with the upper surface of the panel support portion 52a, and the lower surface of the periphery of the head 48 of the fixing bolt 45 is brought into contact with the fixed pressing surface 40a of the panel 40. The plate thickness portion corresponding to the fixed pressing surface 40a at the corner portion of the panel 40 is supported by the head 48 and the panel support by contacting the male screw portion 46 to the screw hole 52b and pressing the contact portions. It is fixed by being sandwiched between the portion 52a.

  In FIG. 1, only one concrete panel 40 is shown. However, when the panel support leg 47 is arranged so that the axis center is located at the intersection of the boundary lines between the four panels 40, FIG. It goes without saying that the corners of the four panels 40 are arranged around the panel support legs 47 so that they are fixed and supported together as in the conventional example shown in FIG.

  As shown in FIGS. 3 and 12, an arc inner periphery facing the outer peripheral surface of the upper boss portion 52 c protruding upward from the panel support portion 52 a of the adjustment base 52 is formed on the arc center side of the fixed pressing surface 40 a of the concrete panel 40. A surface 40b is formed, and a tapered inner peripheral surface 40c facing the tapered outer peripheral surface of the head 48 is formed on the side opposite to the center of the arc of the fixed pressing surface 40a.

  As shown in FIGS. 4 and 5, the adjustment base 52 has four ribs 52d formed radially from the upper boss portion 52c integrally with the upper surface of the panel support portion 52a and the outer peripheral surface of the upper boss portion 52c. These ribs 52d are arranged so as to be sandwiched between adjacent concrete panels 40 as shown in part in FIG.

  Further, as shown in FIG. 6, a screw hole 52 e having a diameter larger than that of the screw hole 52 b is formed in the adjustment base 52 below the screw hole 52 b, and the screw hole 52 e is formed on the panel support leg 47. The screw rod member 49 (see FIG. 3) is screwed to the upper end portion. Further, a height fixing bolt 54 for fixing the height of the adjustment base 52 to the screw rod member 49 is screwed into the screw hole in the middle of the lower boss portion 52 f of the adjustment base 52. It has become.

  As shown in FIGS. 8 and 9, the head 48 of the fixing bolt 45 has an inverted frustoconical small head 48 a formed continuously from the same steel material as the male screw 46 (screw) at the center thereof. A large head 48b (buffer member) formed of a partially synthetic resin material is disposed outside the radius of the small head 48a so as to wrap the small head 48a. ing.

  As shown in FIGS. 10 and 11, a part A of FIG. 9B, that is, the lower surface side of the peripheral part of the large head 48b is arranged concentrically with the male screw part 46, and is formed into a plurality of elastic shapes. A protrusion 48c is formed. Most of the large head 48b is formed to be hard, but only the portion of the elastic protrusion 48c is formed to be softer than the other portions so as to have appropriate elasticity.

  Therefore, such an annular elastic protrusion 48c comes into contact with the fixed pressing surface 40a of the concrete panel 40. For this reason, the elastic protrusion 48c prevents the panel 5 from rattling or squeaking when a person walks on the panel 40, carries an object, or places an object. By absorbing the difference in thickness of the panel 40, it is possible to firmly fix the panel 40 so that no rattling occurs in any of the panels 40.

  According to the panel fixing mechanism 50 configured as described above, each panel 40 is fixed in a state where the elastic protrusion 48c of the large head 48b of the head 48 of the fixing bolt 45 is in contact with the fixed pressing surface 40a from above. Therefore, the elastic protrusion 48c is only subjected to the fastening force to the screw hole 52b of the male screw portion 46, and the weight of the concrete panel 40 itself and the weight of the person or object placed on the elastic panel portion 48c. It will not take time. For this reason, it is possible to prevent the elastic protrusion 48c from sagging and losing its elasticity and resilience, thereby preventing the panel 40 from rattling.

  In the above embodiment, the case where the elastic protrusion 48c is formed integrally with the head 48 has been described. However, the elastic protrusion 48c is formed integrally with the fixed pressing surface 40a of the concrete panel 40. Alternatively, the head 48 and the panel 40 may be separated from each other and simply sandwiched between them.

  In the above embodiment, the case where the elastic protrusion 48c is formed in an annular shape concentric with the male screw portion 46 of the fixing bolt 45 has been described. However, the elastic protrusion 48c may be formed in a spiral shape, Or you may form so that it may extend from the male screw part 46 to a radial direction (four directions).

  In the above embodiment, the case where the elastic protrusions 48c are continuously formed in the circumferential direction has been described. However, as shown in FIG. 13, the elastic protrusions 48d are formed in a spot shape, May be distributed and arranged at a number of non-uniform positions on the buffer member.

  By adopting such a configuration, it is possible to prevent the elastic protrusion 48d from sagging and losing its elasticity and resilience, and to prevent the panel 40 from rattling. Even if the thickness accuracy of the portion to which it is fixed varies, the variation can be absorbed by the elastic deformation of the elastic protrusion 48d, and the panel 40 can be fixed securely.

Moreover, in the said embodiment, although the case where the some elastic projection part 48c was formed in the same height was demonstrated, you may form in a mutually different height.
Moreover, in the said embodiment, although the case where the some elastic projection part 48c was formed in the same hardness (softness) was demonstrated, you may form in mutually different hardness.

  As described above, when the heights and hardnesses of the plurality of elastic projections are different, the present invention is also applied to the case where the plurality of elastic projections 48d as shown in FIG. 13 are distributed at non-uniform positions. be able to. In this way, even when the plurality of elastic protrusions are configured to have different heights and hardnesses, it is possible to obtain the same effects as when the plurality of elastic protrusions 48d shown in FIG. 13 are dispersedly arranged. it can.

  Further, since the present invention is effective in the case of a panel whose dimensional accuracy is not so good, in the embodiment, the case where the concrete panel 40 is used as the panel for the free access floor has been described. Needless to say, the present invention can be applied to such panels.

  In the head 48 of the above embodiment, the fixing bolt 45 is composed of two members, a small head 48a integrated with the male screw portion 46, and a large head 48b that wraps the small head 48a. The entire fixing bolt 45 including the head 48 may be formed of a single resin material. In this case, the elastic projection 48c is soft and has appropriate elasticity, and the other portions are elastic projections. A material that can be harder than the portion 48c is preferable.

  In the above embodiment, the male screw part 46 is provided in the fixing bolt 45 and the screw hole 52b is provided in the adjustment base 52. However, the male screw part is provided in the adjustment base 52 and the fixing bolt 45 is screwed. A hole may be provided.

It is a top view which shows the panel fixing mechanism 50 which concerns on one embodiment of this invention. It is a side view of the panel fixing mechanism 50 shown in FIG. FIG. 3 is an exploded side view of the panel fixing mechanism 50 shown in FIG. 2. It is a top view of the panel support leg 47 shown in FIG. It is a side view of the adjustment stand 52 shown in FIG. It is the sectional view on the AA line of the adjustment stand 52 shown in FIG. It is a bottom view of the adjustment stand 52 shown in FIG. It is a top view of the fixing bolt 45 shown in FIG. FIG. 9A is a side view showing the fixing bolt 45 shown in FIG. 8, and FIG. 9B is a side view showing only the left half in section. FIG. 10 is a partial enlarged cross-sectional view showing a portion A of the large head 48b shown in FIG. 9 (b). FIG. 10 is a bottom view of the fixing bolt 45 shown in FIG. 9. It is a partial enlarged top view which shows the fixed press surface 40a of the concrete panel 40 shown in FIG. It is a bottom view of the fixing bolt 45 in which the elastic protrusion part 48d arrange | positioned like the spot on the head 48 which concerns on another Example was formed. It is a cross-sectional side view which shows the conventional panel fixing mechanism. It is a top view of the panel fixing mechanism shown in FIG.

Explanation of symbols

5 Panel 7 Panel support leg 7a Adjustment stand 7b Screw hole 8 Concrete floor 10 Buffer member 12 Fixing member 12a Screw part 40 Concrete panel 40a Fixed pressing surface 40b Arc inner peripheral surface 40c Taper inner peripheral surface 45 Fixing bolt 46 Male screw part 47 Panel Support leg 48 Head 48a Small head 48b Large head 48c Elastic projection 48d Elastic projection 49 Screw rod member 50 Panel fixing mechanism 52 Adjustment stand 52a Panel support 52b Screw hole 52c Upper boss 52d Rib 52e Screw hole 52f Bottom Boss part 54 Height fixing bolt

Claims (7)

A fixing member having a head portion and a screw portion for removably fixing the panel;
Panel having a panel supporting portion that supports interposed therebetween fixed panels between the head of the fixing member, and a fastening portion to which the screw portion is formed on the projecting portion extending upward from the panel supporting part is fastened And supporting means,
The head of the fixing member has a small head formed continuously at the center of the screw portion and a large head arranged to wrap the small head outside the small head. Have
The panel fixing mechanism, wherein the large head is a cushioning member having an elastic protrusion that abuts against the panel on a lower surface thereof . The panel fixing mechanism according to claim 1 , wherein the elastic protrusions of the buffer member are formed in a substantially annular shape centering on the intersection of the boundary lines between the panels. The panel fixing mechanism according to claim 1 , wherein the elastic protrusions of the buffer member are formed in a substantially spiral shape centering on the intersection of the boundary lines between the panels. The panel fixing mechanism according to claim 1 , wherein the elastic protrusions of the buffer member are formed in a substantially radial shape with the intersection of the boundary lines between the panels as a center. The panel fixing mechanism according to claim 1 , wherein the elastic protrusions of the buffer member are arranged unevenly. Panel fixing mechanism according to claim 1 or 5, characterized in that the elastic protrusions of the cushioning member has a different height from the respective positions. Panel fixing mechanism according to claim 1 or 5, characterized in that the elastic protrusions of the cushioning member has a different hardness by each position.

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