JP7211780B2 - Grips for floored cloth frames and floored cloth frames equipped with such grips - Google Patents

Description

The present invention provides a gripping fitting suitable for attaching a cloth frame with a floor (or a cloth frame with a board) used when constructing a work floor or a work passage to horizontal members of a building frame or arm members of a scaffold, and its It relates to a cloth frame with a floor provided with grips. Hereinafter, the horizontal members of the building frame and the arm members of the scaffolding are simply referred to as "horizontal members".

A cloth frame with a floor used to construct a work floor or a work passage uses a rectangular plate-like body having a contour shape defined by a pair of short sides and a pair of long sides connected to these short sides. A structure as shown in FIG. 25 is known, and is mounted in a horizontal state by hooking fixing metal fittings provided at four corners of a plate-like body to horizontal members as shown in FIG.

This type of cloth frame with floor has a locking mechanism (movable claw) on each grip so that the grips will not easily come off from the horizontal member due to wind blowing up or unexpected thrusts from below. ) must be provided.

By the way, the detents provided in conventional cloth frames with floors are suspended from the main body of the grip fitting via studs, and are automatically locked when they move (fall) due to their own weight. Since it has a self-locking structure, when removing the cloth frame with the floor, after releasing the lock by the detent on one end side, lift that part once, and release the lock by the detent on the other end side in that state. When this work is done by one person, the burden on the work is large (the weight (mass) of the cloth frame with floor is about 14 to 16 kg per piece), There was a problem that efficient removal could not be performed.

In addition, when transporting a conventional cloth frame with a floor to a work site or material storage place, after stacking a plurality of cloth frames with a floor, the transportation efficiency is improved by tying and packing using a binding band. However, when stacking the cloth frame with the floor, the stopper of the cloth frame with the floor located in the upper row interferes with the stopper of the cloth frame with the floor located in the lower row, and the cloth frame with the floor The unevenness formed on the upper and lower surfaces of the floor (welded parts that join members together, anti-slip unevenness formed on the upper surface of the floor, etc.) causes the layered state to become unstable. This entails a troublesome task of horizontally shifting and stacking the upper and lower layers, and has a problem that efficient transportation of the cloth frame with the floor cannot be carried out.

As prior art related to this point, for example, Patent Document 1 proposes a hook device that enables a single worker to efficiently install and remove scaffolding, and Patent Document 2 proposes a hook device. , a projecting portion projecting downward is provided on the lower surface of the temporary scaffolding cloth plate, and the horizontal position of this projecting portion is the horizontal position of the weld provided on the upper surface of the temporary scaffolding cloth plate Cloth boards for temporary scaffolding have been proposed in which the stacking state is stabilized by shifting the protruding portion and making the protruding amount of the protruding portion larger than the protruding amount of the welded portion.

However, in the hook device proposed in Patent Document 1, even if the falling lock is placed at the raised position, the abutment point provided on the falling lock is in a state of protruding to the outside of the engaging recess, so that the scaffolding is If an unexpected force is applied to the corresponding contact when removing the plate, the falling lock will easily move to the lowered position, and the scaffolding cannot be removed unless the falling lock is pushed up again to the raised position. , it is difficult to say that the work load can be reduced.

On the other hand, the temporary scaffolding cloth board proposed in Patent Document 2 eliminates the interference of the locking members between the temporary scaffolding cloth boards in the upper and lower stages when stacking the temporary scaffolding cloth boards. Although it is possible, the height of the temporary scaffolding cloth boards tends to be high because the amount of protrusion of the protruding part is larger than the amount of swelling of the welded part. When an unexpected impact or the like is applied to the cloth frame with the floor, there is a concern that the load may collapse.

JP-A-10-88790 JP 2008-308862 A

An object of the present invention is to enable efficient removal of a flooring cloth frame from a horizontal member, and to provide a flooring cloth frame without the risk of interference between detents or collapse of cargo due to unexpected impact. To propose a new grip fitting for a cloth frame with a floor capable of linearly stacking frames and a cloth frame with a floor provided with the metal fitting.

The present invention is a grappling fitting for a flooring frame, which is provided at the longitudinal end of the flooring frame and attaches the flooring frame to the cross member by linking with the cross member constructing the scaffolding. ,
a hook which has a recess opened downward and is hooked to the horizontal member through the open end of the recess; is held in a locked state to prevent removal of the flooring fabric frame from the cross member, while the hook is unlocked by retracting the claw from the open end of the recess to unlock the hook. a detent that allows the fabric frame with the floor to be removed from the horizontal member;
The hook has, on one side surface, two studs which have heads at the tips and are fixed and held vertically spaced apart,
The detent has two long holes, upper and lower, through which each stud is inserted and the stud itself suspends and holds the detent on the side surface of the hook. and is movable up and down so as to draw a curved trajectory by changing the position of the two upper and lower long holes with respect to the stud, and the projection is positioned at the top of the detent when the hook is locked. , the recess is located at the bottom of the detent ,
The recess has an open surface that enables reception of another projection that has the same shape as the projection, and prevents movement along the longitudinal direction of the cloth frame with the floor in the state in which the other projection is received. , said protrusion is adaptable to another recess having the same shape as said recess, and has a bulging protruding end which, when fitted with said other recess, prevents movement of said flooring fabric along the longitudinal direction. It is a grip metal fitting for a cloth frame with a floor characterized by doing.

In addition, the present invention provides a cloth frame with a floor provided with the grip fittings configured as described above, wherein the cloth frame with a floor is fixedly held at longitudinal ends of the cloth frame with a floor. A cover is provided to cover the area from the longitudinal end to at least the center of hooking of the hook on the extension line of the floor board of the fabric frame with floor, wherein one end of the cover is connected to the floor board, and the other end is connected to the floor board. consists of a cover body positioned at least at the center of hooking of the hook, and a support plate positioned below the cover body to support the cover body, and the support plate is connected to the other end of the cover body with a radius (R). a curved wall portion that is bent by adding a , a bulging wall portion connected to the curved wall portion and protruding toward the back surface of the cover body, and a lower surface portion of the cloth frame with floor connected to the bulged wall portion A floor frame with grips is characterized by having an inclined wall portion extending toward and a flat wall portion connected to the inclined wall portion and fitted to the lower surface of the floor frame.

The cover may be provided with tongues formed by cutting and raising the cover main body and the inclined wall portions, respectively, as required, and positioned on the side surfaces of the hooks to prevent lateral deformation of the hooks. can.

According to the present invention, when the hook is in the locked state, the protrusion is positioned at the top of the stopper and the recess is positioned at the bottom of the stopper. , while receiving the protrusions (other protrusions) for retaining the floor attached to the lower level, the protrusions fit into the recesses for retaining the floor attached to the upper level, and the grip fittings There is no mutual interference, and the cloth frames with floor can be stacked linearly.

Moreover, according to the present invention, even if an unexpected impact is received in the stacked state of the flooring cloth frame, the movement of the flooring cloth frame is restricted by the projections and the recesses, so that the load does not collapse.

Further, according to the present invention, the recess is positioned at the open end of the recess by inserting the stud located at the bottom into the notch provided in the long hole located at the bottom. It is possible to hold the cloth frame with the floor in the temporary deposit posture by matching the open surface of the outer surface of the horizontal member with the outer surface of the horizontal member, and the cloth frame with the floor can be efficiently removed by one worker.

Further, according to the present invention, by inserting the upper stud into the notch provided in the upper elongated hole, the position of the stopper in the upper position is stabilized. Even if an accidental impact is received during handling such as removal of the attached cloth frame, the detent does not easily move downward due to its own weight.

Further, according to the present invention, since the height of the top of the hook is the same as the floor plate surface of the cloth frame with the floor, it is possible to eliminate bumping on the work floor and the work passage.

In addition, according to the present invention, since the area from the longitudinal end of the cloth frame with floor to at least the center of hooking of the hook is covered with the cover, tools and the like can be prevented from falling from the area. It is possible and safety is enhanced.

Furthermore, according to the present invention, even if an impact is applied to the hook, the impact can be effectively absorbed by the tongues formed by cutting and raising the cover body and the inclined wall. and deformation of the hook due to impact is prevented.

1 is an external perspective view schematically showing an embodiment of a grip fitting according to the present invention; FIG. FIG. 2 is an external perspective view showing an exploded state of the grip fitting shown in FIG. 1; (a) is a front view of the grip shown in FIG. 1, and (b) is a plan view of the grip shown in FIG. (a) is a view showing the bottom surface of the grip shown in FIG. 1, and (b) is a view showing the back surface of the grip shown in FIG. (a) is a view showing the right side of the metal grip shown in FIG. 1, and (b) is a view showing the left side of the metal grip shown in FIG. It is an enlarged view of a retainer. (a) to (c) are diagrams showing the movement of the retainer. 1 is an external perspective view schematically showing an embodiment of a cloth frame with floor provided with grips; FIG. (a) is a plan view showing the state in which the cloth frame with floor shown in FIG. 8 is attached to a horizontal member together with other cloth frames with floor that are adjacently arranged, and (b) is a side view thereof. is. FIG. 4 is an enlarged view showing the ends of the fabric frame with floor in the longitudinal direction together with the grips. FIG. 10 is a view showing a modification of the grip fitting according to the present invention; It is an external appearance perspective view of a cover. (a) is a plan view of the cover, (b) is a front view of the cover, and (c) is a side view of the cover. 4(a) to 4(e) are diagrams showing the state of attaching the cloth frame with the floor provided with the gripping fitting according to the present invention to the cross member; FIG. 4(a) to 4(d) are diagrams showing the removal of the floor covering with the gripping fitting according to the present invention from the cross member; FIG. 4(a) to 4(e) are diagrams showing a state in which a fabric frame with a floor provided with gripping fittings according to the present invention is held in a state in which the horizontal member is temporarily stored. FIG. (a) to (c) are diagrams showing the positional relationship between the retainer and the lateral member due to the difference in cutout length of the cutout. FIG. 10 is a diagram showing another embodiment of the gripping fitting according to the present invention with respect to the detent. FIG. 19 is a view showing a usage state of the retainer shown in FIG. 18; FIG. 4 is a diagram showing a main part of a state in which cloth frames with a floor are laminated. 1 is a diagram showing a conventional stacking situation of a fabric frame with a floor; FIG. FIG. 4 is a diagram showing the lamination of the flooring fabric frame according to the present invention; FIG. 10 is a view showing another example of the grip fitting according to the present invention; FIG. 10 is a view showing another example of the grip fitting according to the present invention; Fig. 2 is an external perspective view of a conventional cloth frame with floor; It is the figure which showed the state which attached the conventional cloth frame with a floor to the horizontal member.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 is an external perspective view schematically showing an embodiment of a grip fitting according to the present invention, and FIG. 2 is an external perspective view showing an exploded state of the grip fitting shown in FIG. 3(a) and 3(b) are front and plan views of the grip shown in FIG. 1, and FIGS. 5(a) and 5(b) are views showing the right side and left side of the grip fitting shown in FIG. 1, and FIG. 6 is an enlarged view of the stopper. is. The grips can be made of general structural steel (SS400, etc.), and the cloth frame with floor can be made of hot-dip galvanized steel (SGHC, etc.).

Reference numeral 1 in FIGS. 1 to 6 denotes a hook that constitutes the main body of the grip. The hook 1 has a downwardly open recess 1a and can be hooked to a cross member through an open end 1a1 of the recess 1a.

Here, the hook 1 is shown as an example having an inverted U-shaped recess 1a that can be hooked onto a horizontal member such as a pipe having a circular cross section. Various changes can be made according to the cross-sectional shape of the transverse member, and it is not limited to the illustrated one.

Further, reference numerals 2a and 2b denote two upper and lower studs provided on one side surface of the hook 1. As shown in FIG. The studs 2a and 2b are composed of stud bodies 2a1 and 2b1 and heads 2a2 and 2b2 connected to the tips of the stud bodies 2a1 and 2b1, which are vertically spaced and fixed.

Reference numeral 3 is a detent provided on the side surface of the hook 1 . The detent 3 has a curved surface 3a that can be fitted along the outer surface of a part of the lateral member, and has a top side 3b connected to the curved surface 3a, an upper outer side 3c connected to the top side 3b, and the top side 3c connected to the top side 3b. It is possible to apply a plate-shaped piece having a "C" (or inverted C) contour shape as a whole, surrounded by a lower outer side 3d connected to an upper outer side 3c, and is formed with a claw portion 3e and a concave portion 3f.

The retainer 3 has two long holes 3g and 3h (hereinafter referred to as long holes 3g and 3h) through which the studs 2a and 2b are inserted and the retainer 3 itself is suspended from the side surface of the hook 1 by the studs 2a and 2b. 7(a) to 7(c). ), the positions of the upper elongated hole 3g and the lower elongated hole 3h are changed with respect to the studs 2a and 2b so as to draw a curved trajectory, and the claw portion of the detent 3 When the 3e is positioned at the open end 1a1 of the recess 1a, the projection 3i is positioned at the top of the stopper 3 and the recess 3f is positioned at the bottom of the stopper 3. As shown in FIG. In the present invention, positioning the claw portion 3e of the retainer 3 at the open end 1a1 of the recess 1a means that the retainer 3 is moved to the lowest position of the hook 1 as shown in FIG. state.

The concave portion 3f can receive another convex portion having the same shape as the convex portion 3i. It has an open face that can conform to the surface and is provided adjacent to the claw 3e.

Moreover, the projection 3i is adaptable to another recess having the same shape as the recess 3f, and has a protruding protruding end that disables movement along the longitudinal direction of the flooring fabric when fitted with the other recess. are doing. In the present invention, another convex portion having the same shape as the convex portion 3i means a detent convex portion having the same configuration as the present invention, and another concave portion having the same shape as the concave portion 3f. means a detent recess having the same structure as the present invention.

Specifically, as the upper elongated hole 3g, as shown in FIG. It is possible to apply an open lower opening 3g2 and an intermediate opening 3g3 connected to the lower end of the upper opening 3g1 and the upper end of the lower opening 3g2 via bending points P1 and P2, respectively. can.

Further, as the lower elongated hole 3h, an upper opening 3h1 having a dead end at its upper end and an open lower end, and an upper opening 3h1 having a dead end at its lower end and having its upper end through a stepped portion d. It is possible to apply one configured with a lower opening 3h2 connected to the lower end of the .

Reference numeral 4 denotes a notch provided in the lower long hole 3h. The notch 4 has a width that allows the stud 2b to be inserted therein, and has one end connected to the upper opening 3h1 of the lower elongated hole 3h and the other end forming a blind end.

When the stopper 3 is moved, the recess 3f can be positioned at the open end 1a1 of the recess 1a by inserting the stud 2b into the notch 4 (see FIGS. 16(a) to 16(d)).

FIG. 8 is an external perspective view schematically showing an embodiment of the cloth frame with floor provided with the grip fittings configured as described above, and FIGS. Fig. 10 is a top view and a side view showing a state in which the framing with floor is attached to the horizontal member together with other framing with floor which are adjacent to each other; 1 is an enlarged view shown together with FIG.

Reference numeral 5 in FIGS. 8 to 10 above is a cloth frame with a floor. The cloth frame 5 with a floor can be constructed of a floor plate 5a and a pair of side plates 5b connected to the widthwise ends of the floor plate 5a, for example, having a grooved cross-sectional shape. When assembling the grip fittings to the cloth frame 5 with floor, it is preferable to bend the main body portion of the hook 1 as shown in FIG. As shown in 9(a) and 9(b), the flooring frames 5 can be attached linearly to the same cross member.

In the cloth frame 5 with a floor according to the present invention, the area L is fixedly held at the longitudinal end of the cloth frame 5 with a floor and extends from the end to at least the hook center N of the hook 1 (see FIG. 10). It is possible to provide a cover 6 that covers the extension of the floor plate 5a, and the cover 6 can reliably prevent tools and the like from falling through the gap formed in that area.

FIG. 12 is an external perspective view showing only the cover 6, and FIGS.

The cover 6 includes a cover main body 6a having one end connected to the floor plate 5a of the cloth frame 5 with the floor and the other end positioned at least at the hooking center N of the hook 1, and the cover main body 6a positioned below the cover main body 6a. A support plate 6b that supports the main body 6a can be applied.

The cover main body 6a can be a flat plate-like member continuously connected to the floor board surface 5a of the cloth frame 5 with floor. The support plate 6b includes a curved wall portion 6b1 that is connected to the other end of the cover main body 6a and is bent with a radius (R), and a bulge that is connected to the curved wall portion 6b1 and protrudes toward the back surface of the cover main body 6a. A protruding wall portion 6b2, an inclined wall portion 6b3 connected to the protruding wall portion 6b2 and extending toward the lower surface of the cloth frame with floor, and a flat wall portion connected to the inclined wall portion 6b3 and matching the lower surface of the cloth frame with floor. A wall part 6b4 can be used.

In particular, the cover body 6a can be firmly supported by forming the support plate 6b with the curved wall portion 6b1, the bulging wall portion 6b2, the inclined wall portion 6b3, and the flat wall portion 6b4.

The hook 1 is fixed to the side plate 5b of the cloth frame 5 with the floor at the base of the main body via rivets or joined by welding. is connected to the side plate 5b of the cloth frame 5 with the floor in a cantilevered state. There is also a concern that the hook 1 may be deformed laterally starting from the fixed portion.

For this reason, the cover body 6a and the inclined wall portion 6b3 are cut and raised at the edge portions in the width direction of the cover 6 as necessary, and positioned on the side surface of the hook 1 to prevent the hook 1 from being deformed in the lateral direction. Tongues 7, 8 may be provided for the purpose.

The fixing of the cover 6 to the cloth frame 5 with the floor is appropriately fixed by welding, rivets, or the like.

It is preferable that the top of the hook 1 has the same height as the floor plate 5a of the cloth frame 5 with the floor, and even if the cover 6 is installed, no step is formed. The cover 6 may be provided with one or more bends along the width direction, and the bends may form an inclination.

FIGS. 14(a)-(e) are diagrams showing how the cloth frame 5 with flooring provided with the gripping fittings according to the present invention is attached to the cross member.

In order to attach the cloth frame 5 with the floor provided with the gripping metal fitting according to the present invention to the horizontal member, the claw portion 3e of the stopper 3 is brought into contact with the upper side of the horizontal member, and while maintaining that state, the hook 1 is attached to the floor. It is lowered together with the cloth frame 5. 14(b) and 14(c), the recess 1a of the hook 1 is opened, and as shown in FIG. The member will enter the recess 1a.

After the horizontal member has entered the recess 1a of the hook 1, the retainer 3 moves downward due to its own weight, as shown in FIG. 14(e). installation is completed.

When the cloth frame 5 with the floor is attached to the horizontal member, the claw part 3e of the stopper 3 is positioned at the bottom of the horizontal member, so the cloth frame 5 with the floor cannot be removed from the horizontal member. (locked state).

FIGS. 15(a)-(d) are diagrams showing the removal of the cloth frame 5 with the floor provided with the gripping fittings according to the present invention from the cross member.

In order to remove the cloth frame 5 with the floor provided with the gripping metal fittings according to the present invention from the horizontal member, as shown in FIGS. After retracting the hook 3e from the open end 1a1 of the recess 1a of the hook 1, as shown in FIG.

When the detent 3 is placed in the state shown in FIG. 15(d) (unlocked), the posture is maintained as it is unless the projecting end 3j of the detent 3 protruding into the recess 1a of the hook 1 is pressed. (Fixed), the cloth frame with the floor can be removed efficiently by one person's work.

FIGS. 16(a) to (e) are diagrams showing the situation in which the cloth frame 5 with flooring provided with the gripping fittings according to the present invention is held in the temporarily deposited state of the cross member. Here, the temporary storage state means that the cloth frame 5 with the floor is removed from the horizontal member and the removed cloth frame 5 with the floor is once placed on the horizontal member.

In order to hold the cloth frame 5 with the floor provided with the gripping metal fittings according to the present invention in a temporarily deposited state on the horizontal member, as shown in FIGS. Further, as shown in FIG. 16(d), the stud 2b (2b1) is inserted into the notch 4 so that the recess 3f is positioned at the open end 1a1 of the recess 1a of the hook 1, as shown in FIG. 16(e). , the cloth frame 5 with the floor is placed on the horizontal member through the recess 3f. When removing the cloth frame 5 with the floor, the work can be reduced by holding the cloth frame 5 with the floor in a temporarily deposited state.

FIGS. 17(a) to 17(c) are diagrams showing the positional relationship between the retainer 3 and the lateral member depending on the difference in the notch length e of the notch 4. FIG. The boundary between the claw portion 3e and the recessed portion 3f of the retainer 3 is defined as the contact point d of the retainer 3, and the vertical line passing through the radial center O of the lateral member is defined as the reference line M, and the radial center O of the lateral member is defined as When the angle formed by the reference line M serving as the starting point and the contact point d of the detent 3 is defined as the contact angle θ of the detent 3, the contact angle θ is in the range of +30° to -5°. It is preferable to provide a notch 4 with e, by means of which the cloth frame 5 with floor can be held in a temporary storage condition in a stable position. Regarding the contact angle θ, the angle in the clockwise direction from the reference line M is defined as (+), and the angle in the counterclockwise direction from the reference line M is defined as (-).

In particular, when the contact angle θ exceeds 0° (the angle coinciding with the reference line M) and becomes a negative angle as shown in FIG. When the contact angle .theta. is about -4.degree., the contact area between the concave portion 3f and the outer surface of the horizontal member becomes maximum, and the temporary deposit posture of the cloth frame 5 with the floor is further stabilized. The length e of the notch 4 is preferably equal to or greater than the diameter of the stud 2b.

FIG. 18 is a view showing another embodiment of the grip fitting according to the present invention with respect to the retainer 3. As shown in FIG. The stud 2a can be inserted into the part of the detent 3 at the bending point P1 of the upper long hole 3g (see FIG. 6), that is, the outer edge of the boundary between the lower opening 3g2 and the intermediate opening 3g3. A cutout portion 3g4 can be provided, and in a state (unlocked state) as shown in FIG. Therefore, even if an accidental impact is applied to the stopper 3 during handling for removing the cloth frame 5 with the floor, the stopper 3 will not easily move downward due to its own weight, and the cloth frame 5 with the floor will not move. Removal work can be performed efficiently.

FIG. 20 shows a state in which the claw portion 3e of the detent 3 is positioned at the open end 1a1 of the recess 1a, that is, the state in which the hook 1 is held in a locked state and the cloth frame 5 with the floor is stacked. It is a diagram showing.

In the past, it was inevitable that the stoppers of the grips would interfere with each other at the top and bottom. For example, as shown in FIG. Therefore, in the grip fitting, the recess 3f of the detent 3 can receive another projection having the same shape as the projection 3i (the projection of the detent of the grip fitting of the cloth frame with floor located in the lower stage). Also, since the convex portion 3i can be adapted to another concave portion having the same shape as the concave portion 3f (the concave portion of the grip fitting of the cloth frame with floor located in the upper stage), the cloth frame with floor 5 is shown in FIG. can be linearly stacked as shown in FIG. Moreover, in such a stacked state, even if an accidental impact is received, the concave portion 3f contacts the convex portion 3i of the stopper 3 in the grip fitting of the cloth frame 5 with floor located in the lower stage, while the convex portion 3i comes into contact with the recessed portion 3f of the stopper 3 in the grip fitting of the cloth frame 5 with floor located on the upper stage, so that the movement of the cloth frame with floor is regulated and the load does not collapse.

23 and 24 show the contour shape of the stopper 3, the shape and length of the upper elongated hole 3g, the lower elongated hole 3h, the notch 4 (shown in FIG. 6), the length, etc., according to the present invention. However, it is a diagram showing another example of the grip fitting.

When the claw portion 3e of the stopper 3 is positioned at the open end 1a1 of the recess 1a of the hook 1, the protrusion 3i is positioned at the top of the stopper 3 and the recessed portion 3f is positioned at the bottom. The contour shape of the stop 3, the shape and length of the upper elongated hole 3g, the lower elongated hole 3h, and the notch 4 can be changed arbitrarily.

According to the present invention, the fabric flooring can be efficiently removed from the horizontal members, and the fabric flooring can be removed without the risk of the detents interfering with each other or the load collapsing due to an unexpected impact. It is possible to provide a grip fitting that enables stacking and a cloth frame with a floor equipped with the grip fitting.

1 Hook 1a Recess 1a1 Open end 2a Stud 2b Stud 3 Detent 3a Curved surface 3b Top side 3c Upper outer side 3d Lower outer side 3e Claw 3f Recess 3g Long hole (upper long hole)
3g4 Notch 3h Long hole (lower long hole)
3i Protruding portion 3j Protruding end 4 Notch 5 Cloth frame with floor 5a Floor plate 5b Side plate 6 Cover 6a Cover body 6b Support plate 6b1 Curved wall 6b2 Protruding wall 6b3 Inclined wall 6b4 Flat wall 7 Tongue 8 Tongue piece

Claims (7)

Grab fittings for the flooring frame at the longitudinal ends of the flooring frame for attaching the flooring frame to the cross members by interlocking with the cross members constructing the scaffolding, comprising:
a hook which has a recess opened downward and is hooked to the horizontal member through the open end of the recess; is held in a locked state to prevent removal of the flooring fabric frame from the cross member, while the hook is unlocked by retracting the claw from the open end of the recess to unlock the hook. a detent that allows the fabric frame with the floor to be removed from the horizontal member;
The hook has, on one side surface, two studs, one above the other and one above the other, which have a head at the tip and are fixed and held with a gap between them in the vertical direction,
The detent has two long holes, upper and lower, through which each stud is inserted and the stud itself suspends and holds the detent on the side surface of the hook. and is movable up and down so as to draw a curved trajectory by changing the position of the two upper and lower long holes with respect to the stud, and the projection is positioned at the top of the detent when the hook is locked. , the recess is located at the bottom of the detent,
The recess has an open surface that enables reception of another projection that has the same shape as the projection, and prevents movement along the longitudinal direction of the cloth frame with the floor in the state in which the other projection is received. ,
The protrusion has a bulging protruding end that is compatible with another recess having the same shape as the recess and that prevents movement along the longitudinal direction of the flooring fabric in a fitted state with the other recess. A grip fitting for a cloth frame with a floor, characterized by: 2. The grapple of claim 1, wherein the open face of said recess is an open face conformable to the outer surface of said cross member. Of the elongated holes, the elongated hole located on the lower side has a notch portion having one end connected to the opening of the elongated hole and the other end formed with a dead end, and the notch portion is located on the lower side. is positioned at the open end of the recess by inserting a stud located at the bottom of the recess to hold the cloth frame with the floor in a temporarily deposited state on the horizontal member through the recess. 3. A grip fitting for a cloth frame with floor according to claim 1 or 2. 4. The floor covering according to any one of claims 1 to 3, wherein the upper elongated hole has a notch into which at least a part of the upper stud is inserted. Frame grip fittings. 5. The grip fitting for the cloth frame with floor according to any one of claims 1 to 4, wherein the top of said hook is at the same height as the floor board surface of said cloth frame with floor. A cloth frame with a floor provided with the grip fitting according to any one of claims 1 to 5,
a cover fixedly held at the longitudinal end of the frame with floor and covering the area from the end to at least the center of hooking of the hook on the extension line of the floor board of the frame with floor;
The cover comprises a cover body having one end connected to the floor plate and the other end located at least at the center of the hook of the hook, and a support plate positioned below the cover body and supporting the cover body,
The support plate includes a curved wall portion connected to the other end of the cover body and bent with a radius (R) added, and a bulging wall portion connected to the curved wall portion and protruding toward the rear surface of the cover body. a slanted wall portion connected to the bulging wall portion and extending toward the lower surface of the floor frame; and a flat wall portion connected to the slanted wall portion and aligned with the lower surface of the floor frame. Cloth frame with floor with characteristic grips. 3. The cover is formed by cutting and raising the cover main body and the inclined wall, and has a tongue piece located on a side surface of the hook to prevent lateral deformation of the hook. Cloth frame with floor provided with grips as described in 6 .

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