JPH0548531U - Double floor opening fittings - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention makes it possible to easily insert and remove a mounting bracket such as an outlet from the top surface of a floor into an opening for wiring and piping provided on a double floor. Is what makes it possible. [Structure] An engaging claw (3) is provided at one side edge of a rectangular face plate (1) which is hung on the double floor opening (40), and two engaging plates are provided near the opposite side edge of the face plate (1). Screw holes and stoppers (4)
Provided with a face plate member, a locking member (B) having two screw holes and engaging claws (22), and two long axis screws (30) connecting the face plate member and the locking member (B). And an engaging claw (3) on the side edge of the opening (40) of one floor panel (P) in a state in which the locking member (B) is hung diagonally on the face plate member by the long axis screw (30). And place the face plate (1) on the upper surface of the opening (40) of the other floor panel (P), and set the long axis screw (3).
When the locking member (B) is pulled up by rotating (0), the engaging claw (22) becomes horizontal by the stopper (4), and it can be firmly fitted to the side edge of the opening (40).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a metal fitting for attaching a device or a lid, which can be easily attached / fixed and removed from an opening for wiring and piping arranged on a double floor by operating from the top of the floor.

[0002]

[Prior Art]

 In order to facilitate the maintenance and management of the underfloor wiring and piping, the double floor is usually a floor with 40 to 60 cm square concrete plates, such as concrete, metal, or synthetic resin, on which the supporting heights are adjustable at the four corners. It is generally adopted that a large number of panels are laid adjacent to each other on the floor base to make them free-access type. At this time, a floor panel having an opening on the plate surface or a notch at the center of the plate facing edge is used. By arranging a number of openings distributed over the entire surface of the double floor that has been formed, it is possible to pull out the wires and cables for communication power that extend below the floor to the desired positions on the floor.

[0003] In the opening where the wiring and piping are drawn out, an adherend metal fitting for stably holding the supporting and connecting device is fitted and fixed. For example, floor sockets and retractable sockets are fixed to the metal fittings that are detachably fixed in the openings by means such as screwing or screwing. In addition, the unused opening where wiring is not drawn out is fitted and sealed with a metal fitting for the blind lid.

As a means for attaching the adherend to the double floor opening, there is usually a method of sandwiching the floor panel edge of the opening by a male screw cylinder with an upper collar and a female screw lower collar screwed to the male screw cylinder. Generally, this method requires that the laid floor panel be pulled up, installed and removed, which makes the work bothersome and inefficient. In particular, the openings are provided on the edges of both floor panels adjacent to each other. The application was extremely difficult when the notches were formed facing each other.

In order to solve the above-mentioned problems, the present inventor provided elastic claws on the facing plate surface of the metal fitting to be inserted into the opening, which respectively project outward and engage with the lower surface of the floor panel edge. Outlet fittings that can be easily fitted and locked from the floor upper surface (actually open 64-6222 and 64-9412), and an assembly type that is fitted to the edge of the floor facing the opening We devised an outlet mounting bracket using a receiving bracket (Shokai 63-153718), which allows the socket to be attached and detached by operating from the top of the floor without pulling up the laying floor panel. Got

[0006]

[Problems to be solved by the device]

 In the above invention, the elastic engaging claw attachment means is easy to fit and lock, but the engagement and fixation are likely to be unstable, and the disengagement operation during removal is troublesome. Further, the assembly type bracket has a problem that the mounting and position adjusting operations are complicated and inefficient.

[0007]

[Means for Solving the Problems]

 The metal fitting of the present invention has a fixed engaging claw on one edge of a rectangular face plate that hangs on the floor opening, and a movable engagement supported on the opposite edge so that it can be oscillated and moved up and down. By providing the claws, it is possible to easily and surely perform the attachment / detachment operation from the floor top surface without causing the above-mentioned conventional problems. For the sake of explanation, the side edge of the face plate where the fixed engaging claw is provided is the front edge, and the opposite side edge where the movable engaging claw is provided is the rear edge, and the front and rear are also in the same direction.

That is, according to the present invention, the front edge of the rectangular face plate that is hung on the double floor opening is provided with the front wall bent from the front edge and the engaging claw bent forward from the lower edge of the front wall. Provided with screw holes at both corners of the rear edge of the face plate, and on the lower face plate between the screw holes, a face plate member having a stopper fixedly mounted close to the rear edge, and an upper wall. Two protrusions that are bent and branched at a distance wider than the stopper are formed forward from both sides of the edge, and engaging claws that are bent backward from the lower edge of the standing wall are integrally formed. Locking member having a screw hole formed therein, and two long shaft screws for screwably connecting both members through a screw hole of the face plate member into the screw hole of the locking member. The gist of the present invention is a double-floor opening adhered metal fitting.

In the above, the square face plate has a width that is suspended between a pair of opposite side edges of the square opening formed on the double floor surface, and the width of the front wall, the engaging claw, and the face plate member. May have a size that can be accommodated between the pair of side edges, and the face plate may be provided with an opening at the center for attaching wiring equipment, or may be used as a cover without providing the opening.

The screw holes formed at both corners of the rear edge of the face plate lock the long shaft screw heads inserted therein and have a through hole diameter larger than the screw shaft diameter to allow the screw shaft to tilt. It is desirable to have a recessed hole shape so that the screw head can be housed in the upper part of the through hole and the screw shaft can be tilted. Usually, the long-axis screw has a flat plate-shaped head, and the screw hole is also a countersink corresponding thereto, and the through-hole diameter of the dish hole is set to be 1.5 times or more as large as the axial diameter of the long-axis screw. It is preferable that the major axis screw can tilt by 30 ° or more around the vertical axis.

The stopper, which is hung and fixed near the rear edge of the face plate, is located between the screw hole and the rear edge, and when the metal fitting to be attached is fitted in the floor opening, A locking member, which will be described later and is oscillatably supported by a long shaft screw inserted into the hole, is pulled up by the screw of the long shaft screw to restrict the posture in which it abuts and locks the bottom surface of the floor panel. The hanging length is usually about the thickness of the floor panel, and is determined by the dimensions of the locking member.

The locking member is hung by screwing a long shaft screw loosely inserted into a screw hole of the face plate into a screw hole provided in two projecting pieces bent forward from the upper edge of the standing wall to suspend it from the standing wall. Due to the eccentric load of the engaging claw bent to the rear of the lower edge, the long-axis screw is supported in a state in which it is inclined vertically with its lower end facing forward, but the long-axis screw is not supported by the rotating driver. When the pressurizing force is applied, the long shaft screw is rotated while maintaining the right angle direction with respect to the face plate, and accordingly, the engaging claw of the locking member is pulled up in a state of protruding rearward, and the front surface of the standing wall is moved forward. The stopper comes into contact with the rear surface of the stopper and is restrained from tilting forward.

[0013]

[Action]

 In the metal fitting of the present invention, the front edge of the face plate is inserted into the rectangular opening formed in the double floor from above, and the engaging claw bent and bent toward the front edge is formed in front of the opening. The rear green of the face plate is mounted on the rear edge of the opening by protruding it to the lower surface of the edge floor panel, so that the rear plate can be oscillated in the front-back direction by the two long shaft screws. Due to the inclined support state of the member, the engaging claw end is lowered and inserted into the opening without contacting the upper surface of the opening.

Then, by rotating the screwdriver in pressure contact with the long shaft screw head and alternately screwing the two long shaft screws, the standing wall of the locking member is pulled up to the rear of the stopper, and the engaging claw is released. In close contact with the bottom surface of the floor panel, the metal fittings are non-detachably attached to the upper and lower edges of the floor panel at the front and rear edges thereof, with the face plate edge contacting the upper surface of the floor panel and the engaging claw contacting the lower surface. At this time, the stopper keeps the locked state by restraining the tilting tendency of the locking member in the front detachment direction. However, if the lower end of the stopper is a guide end extending obliquely forward and downward, the above-mentioned engagement can be prevented. It is possible to smoothly pull up the stop member.

As described above, the attached metal fitting fitted and locked in the floor opening is in an inclined suspended state when the long shaft screw is rotated and the upper edge of the vertical wall is lowered below the lower end of the stopper. It can be sensed visually, and in this state, the engaging claw end is located in front of the opening edge or slightly engaged with the lower edge of the opening. Since the upper surface of the base plate is inclined rearward and the locking member is swingable, the rear edge of the face plate can be easily pulled up, and then the engaging claw at the front edge of the face plate can be pulled out. The adherend can be removed from the opening.

[0016]

【Example】

 FIG. 1 shows an embodiment of the present invention. FIG. 1 is a perspective view showing a state in which a face plate of an adherend is horizontally supported, and FIG. 2 is an opening of a double floor formed on a floor base S. FIG. 3 is a vertical side view of the fitted state, and FIG. 3 is a plan view showing the upper surface of the double floor. In the figure, A is a face plate member made of a steel plate, 1 is a square face plate, 2 is a front wall bent from a position slightly inward from both sides of the front green 11 of the face plate 1, and 3 is a front wall 2. Engaging claws bent forward from the lower edge, 4 is a plate-like stopper which is arranged in close proximity to the rear edge 12 of the face plate 1 and hangs downward in parallel with the rear edge 12, and 5 and 5 of the stopper 4. These screw holes are formed in both corners of the face plate 1 at a distance larger than the width and slightly ahead of the stopper.

Reference numeral B denotes a steel plate-like locking member, and two projecting pieces 21 and 21 bent forward and branched from both upper edges of the standing wall 20 having the same width as the engaging claw 3 of the face plate member A. There is an engaging claw 22 bent backward from the lower edge of the standing wall 20, and the two projecting pieces 21 and 21 have a space larger than the width of the stopper 4 of the face plate member A and both rear edges of the face plate 1. Screw holes 25, 25 into which screw shafts are respectively screwed are formed in the surfaces of the projecting pieces 21, 21 at the same intervals as the screw holes 5, 5 formed in the corners.

Reference numeral 30 is a long-axis screw, and the head is locked and inserted into the screw hole 5 of the face plate member A, and screwed into the screw hole 25 of the projecting piece 21 of the locking member B. In order to connect A and B, the diameter of the through hole of the screw hole 5 is set to be 1.5 times or more the shaft diameter of the long shaft screw 30, and the two long shaft screws 30 and 30 are used as locking members. B is in a suspended supporting state in which it can easily swing forward and backward with respect to the face plate member A.

FIG. 3 shows a double-floor upper surface in which rectangular openings 40 are formed by opposing rectangular notches provided at the centers of opposite edges of the rectangular floor panel P, and a rectangular opening 40 is formed, and 41 is a peripheral edge of the opening 40. Is a step portion that is recessed along, and L is a supporting leg that is fitted in through holes penetrating the four corners of each rectangular floor panel P and erected downward. The supporting leg L is usually a screw pillar and is a floor panel. The support height of P can be adjusted.

FIG. 2 is a cross-sectional view showing a fitting state of a fitting such as (b) with respect to the opening 40 of the double floor shown in (a) of FIG. 3, in which the face plate 1 is at least Both sides thereof are erected so as to engage with the peripheral stepped portion 41 of the opening 40, and the engaging claws 3 at the front edge and the engaging claws 22 of the locking members respectively abut and engage with the back surface of the floor panel P. The metal fittings are fixed to the floor so that they cannot be separated. The adherend can also be fitted by rotating 90 ° with respect to the opening 40 as shown in FIG.

The engagement state of the engagement claw 22 of the engagement member B is held by the stopper 4, but the long axis screw 30 is rotated by a screwdriver to engage the engagement member B with the engagement range of the stopper 4. When it is lowered below the circumference, it is in an inclined suspended state like a locking member B'shown by a chain line. The claw end 23 of the engaging claw 22 moves forward and downward like 23 ', and further in front of the face plate 1. As the edge 12 is pulled up like 12 ', the face plate 1 is inclined like 1'and the claw end 23' is moved further forward, so that the adherend can be easily detached from the opening 40.

In this embodiment, the face plate 1 is provided with the central opening 6 into which the outlet C can be screwed. However, a screw lid is screwed into the central opening 6 or as shown in FIG. If the flat face plate 1 is not provided with the central opening, it can be used for covering the unused openings of the double floor.

FIG. 4 is an enlarged cross-sectional view of the main part of another embodiment in which the lower end of the stopper 4 in the previous embodiment is extended obliquely downward and forward to form the guide end portion 9. In this case, the screw hole 5 formed in the face plate 1 is used as a countersink, and the diameter of the lower through hole of the countersink is set to be about twice the shaft diameter of the long shaft tool 30. In this case, The locking member B ′ slanted and suspended as indicated by the alternate long and short dash line can be slidably contacted with the guide end 9 of the stopper 4 by the rotation of the long shaft screw 30 ′ and easily moved to the locked state shown by the solid line. The center of the flat plate screw head is aligned with the countersink, and the long-axis screw 30 is vertical so that the upper surface of the engaging claw 22 and the lower surface of the floor panel P are firmly locked in a good contact state at a predetermined position. In addition, the upper surface of the face plate 1 can be made flush to obtain a good floor surface.

[0024]

[Effect of the device]

 As described above, the double floor opening adherend of the present invention can be inserted into and removed from the floor upper surface of the double floor opening formed by the laying floor panel, and in particular, one of the face plates. The locking member can be oscillatedly suspended on the edge, and positive locking can be stabilized and ensured by the driver's operation of the long shaft screw for supporting the suspension, and the locking can be released easily. It has practical effects such as improvement of efficiency of maintenance work such as heavy floor formation work and subsequent wiring change.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a face plate of a double floor opening adherend according to the present invention is horizontally supported.

FIG. 2 is a vertical cross-sectional side view of the fitting of FIG. 1 fitted in a double floor opening.

FIG. 3 is a plan view showing an upper surface of a double floor.

FIG. 4 is an enlarged vertical sectional side view showing a main part of another embodiment.

[Explanation of symbols]

 1 Face Plate 2 Front Wall 3 Engaging Claw 4 Stopper 5 Screw Hole 6 Center Opening 11 Front Edge 12 Rear Edge 20 Standing Wall 21 Projecting Piece 22 Engaging Claw 23 Claw End 25 Screw Hole 30 Long Shaft Screw 40 Opening 41 41 Step A Face Plate Member B Locking member C Outlet P Floor panel

Claims (3)

[Scope of utility model registration request] 1. A front face (1) of a rectangular face plate (1) suspended on a double-floor opening is provided with a front wall (2) and a front wall (2) bent from the front edge (11). An engaging claw (3) bent forward from the lower edge is provided, and screw holes (5, 5) are formed at both corners of the rear edge (12) of the face plate (1). On the lower surface of the face plate (1) between (5, 5), the trailing edge (1
2) A face plate member (A) having a stopper (4) fixedly suspended in the vicinity of 2) and the upper wall of the standing wall (20) are forwardly branched from both sides of the upper edge of the standing wall (20) with a wider space than the stopper (4). The two projecting pieces (21, 21) and the engaging claw (22) bent backward from the lower green of the standing wall (20) are integrally molded, and the projecting pieces (21, 21) are respectively screw-threaded. Through the screw holes (5, 5) of the face plate member (A) and the screw hole (25, 25) of the lock member (B) through the lock member (B) having the screw holes (25, 25) formed therein. Both members (A,
B) Two long shaft screws (30, 3) that swingably connect
0) and a double floor opening adhered metal fitting. 2. The double floor opening adherend fitting according to claim 1, wherein the face plate (1) is provided with a central opening (6) into which a wiring device for holding and connecting is provided. 3. Adjacent to the trailing edge (12) of the face plate (1),
The lower end of the stopper (4) fixedly mounted on the lower surface of the guide end (9) extends obliquely forward and downward for the locking member (B).
The double floor opening adhered metal fitting according to claim 1 or 2, further comprising: