JP4580864B2 - Grating fixture and grating - Google Patents

Description

  The present invention relates to a fixture for grating and a grating that prevent the grating from coming off from an opening such as a side groove.

  Conventionally, as a fixing method of the grating, there is a method of fixing to an opening such as a side groove with a screw. Although this method can securely fix the grating to the opening, there is a problem that it is difficult to remove the grating from the opening due to corrosion or the like. Particularly in the event of an emergency such as a fire, it is necessary to quickly remove the grating from the opening, and the fixing method using screws cannot cope with this.

On the other hand, the present applicant has already formed a frame flat bar having guide holes in the four corner frames of the grating, a cam bearing support plate provided with a cam, an insulator receiving plate, and a retaining plate. An actuating pin with a square groove and a compression coil spring are arranged, the tip of the actuating pin is pushed firmly into the insert hole in the laying frame wall, and the cam claw is engaged with the actuating pin tip side angular groove to engage the actuating pin. Proposals have been made to stop the noise and disengagement prevention support structure grating (see Patent Document 1).
According to this grating, the attaching and detaching work is facilitated by the lever rod, and the four corners of the grating are firmly fixed and locked by the operating pins and the laying frame wall insert holes, thereby contributing to prevention of grating noise and detachment. In addition, it is effective for initial treatment in the event of a disaster or emergency.
JP 2004-339909 A (first page)

The problem to be solved regarding the grating fixing tool 10 and the grating is that it is difficult to remove the grating from the opening such as the side groove by the conventional screw fixing method. Body grating has a slightly complicated form.
Accordingly, an object of the present invention is to provide a grating fixing tool 10 and a grating that can be suitably fixed to an opening such as a side groove and can be easily removed from the opening in a simple form.

The present invention has the following configuration in order to achieve the above object.
According to one embodiment of the grating fixing tool according to the present invention, the grating fixing tool for preventing the grating from coming off from an opening such as a side groove, the tip portion protrudes outward from the side part of the grating. It is arranged so as to be movable in the horizontal direction parallel to the axial center, and is formed so as to be able to be locked to a locked portion provided on the inner side wall of the opening when the tip protrudes outward. A rod-shaped locking pin, a main body member for guiding the movement of the locking pin and holding the locking pin, and interposed between the main body member and the locking pin, and a distal end portion of the locking pin is An elastic member that constantly urges the locking pin in a direction that protrudes outward from the side of the grating, and a protruding portion that is provided in a state of protruding outward from the side surface of the locking pin; , Provided on the member constituting the main body member When the locking pin moves to the inside of the grating, the protrusion is engaged so that the tip of the locking pin does not protrude outward from the side of the grating. And a stopper portion that holds the retaining pin against the urging force of the elastic member.

Moreover, according to one form of the grating fixture according to the present invention, the main body member is formed by bending a metal plate, and the first side plate portion and the second side plate portion facing each other at a predetermined interval. And the locking pin is disposed across the through hole provided in each of the first side surface plate portion and the second side surface plate portion, and the distal end side of the locking pin is the first side surface plate portion. A step portion provided in a middle portion of the locking pin and the second side plate portion, which is inserted so as to be positioned on the side and is movable in a horizontal direction parallel to the axis of the locking pin. The elastic member may be disposed between the inner surface and the inner surface.
According to one embodiment of the grating fixture according to the present invention, the elastic member is a coil spring, and the rear end side of the locking pin is inserted and fitted into the coil spring. It can be characterized by being.

  Further, according to one embodiment of the grating fixture according to the present invention, a substantially slit-shaped guide hole extending along the moving direction of the locking pin is provided in the upper surface plate portion constituting the main body member, and the guide The stopper portion may be formed in the hole, and the protruding portion may be fitted so as to be movable along the guide hole and to limit a moving range of the locking pin.

  Further, according to one embodiment of the grating fixture according to the present invention, the main body member covers a base portion including a bottom plate portion, a first side plate portion and a second side plate portion at both ends, and the base portion. A pair of upper and lower side plate portions, a fourth side plate portion and a fourth side plate portion are provided so as to wind the bottom plate portion from both the third side plate portion and the fourth side plate portion. And a surrounding folding plate portion having a winding portion, and a fixing bolt is provided protruding from the bottom plate portion so as to be fixed to a fixed portion across the pair of winding portions. It can be.

Moreover, according to one form of the grating fixture according to the present invention, a cover member that covers the guide hole of the upper surface plate portion is provided.
In addition, according to one embodiment of the grating fixture according to the present invention, at least the upper surface side of the tip end portion of the locking pin is formed on an inclined surface.
Further, according to one aspect of the grating fixture according to the present invention, the locked portion is formed on a slope, and a tip end portion of the locking pin locked correspondingly is provided. Can be characterized.

Further, according to one embodiment of the grating fixture according to the present invention, a base plate to which the grating fixture 10 is fixed and both side portions to which the grating fixture on the base plate is fixed are provided. A pair of mounting side plates that are erected from each other and have hook portions that are hooked on the grating bar at the upper end portion, and are arranged between the hook portions of the mounting side plate portions and the base plate and are extended by screws. Thus, it is possible to provide sandwiching and fixing means for sandwiching and fixing the grating bar between the two.
Further, according to one embodiment of the grating fixture according to the present invention, the clamping and fixing means is disposed so as to be vertically movable by being fitted in a slit hole provided in the vertical direction in the attachment side plate portion. It is characterized by comprising a columnar female screw and a bolt screwed into the columnar female screw.

  Further, according to one embodiment of the grating fixture according to the present invention, the bolt of the clamping and fixing means is inserted into the base plate and / or the mounting side plate by the holding metal fitting. It can be characterized by being held.

  Moreover, according to one embodiment of the grating according to the present invention, the above-described grating fixing tool is fixed.

  According to the grating fixture and grating according to the present invention, the grating can be suitably fixed to an opening such as a side groove in a simple form, and can be easily removed from the opening.

Hereinafter, an example of the best mode for the grating fixture 10 and the grating according to the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a perspective view showing an embodiment of a grating fixture 10 according to the present invention. FIGS. 2 and 3 are sectional views showing a state in which the grating fixture 10 of FIG. 1 is fixed to the grating 20 by welding. It is. FIG. 4 is a cross-sectional view showing a state in which the grating 20 to which the grating fixture 10 of FIG. 1 is fixed is laid in an opening 25 such as a side groove.
The grating fixture 10 is for preventing the grating 20 from coming off from an opening such as a side groove, and is basically disposed at the four corners of the grating 20.

Reference numeral 30 denotes a locking pin, which is arranged so that the distal end portion 31 can project outward from the side portion of the grating 20 so as to be movable in a horizontal direction parallel to the axis, and when the distal end portion 31 projects outward. It is provided in a substantially rod shape so that it can be locked to the locked portion 40 provided on the inner wall 26 of the opening 25.
At least the upper surface side of the distal end portion 31 of the locking pin 30 is formed on the inclined surface 33. In the example of FIG. 1, the locking pin 30 is formed in a tapered shape having a slope on the entire circumference of the tip.
In addition, the locking pin 30 is formed such that the distal end side 32 excluding the tapered distal end portion 31 is larger in diameter than the rear end side 34. For this reason, it becomes the shape where the step part 35 was formed in the middle part. This is a shape that can be easily manufactured from a metal round bar.

Reference numeral 50 denotes a main body member which functions to guide the movement of the locking pin 30 and to hold the locking pin 30.
As is apparent from FIGS. 1 and 2, the main body member 50 is formed by bending a metal plate material. The main body member 50 is provided with a first side surface plate portion 51 and a second side surface plate portion 52 which are opposed to each other with a predetermined interval.
The locking pin 30 extends over the first through hole 55 and the second through hole 56 provided in the first side surface plate portion 51 and the second side surface plate portion 52, and the tip of the locking pin 30. The side is inserted so as to be located on the first side plate portion side 51 and is arranged to be movable in a horizontal direction parallel to the axis of the locking pin 30.
Corresponding to the diameters of the front end side 32 and the rear end side 34 of the locking pin 30, the diameter of the first through hole 55 is formed larger than the diameter of the second through hole 56.
The main body member 50 in the embodiment shown in FIG. 1 has a basic shape of a box shape having five surfaces with open bottoms, and can be easily manufactured by bending a metal plate.

Reference numeral 60 denotes an elastic member which is interposed between the main body member 50 and the locking pin 30, and the locking pin 30 extends in a direction in which the distal end portion 31 protrudes outward from the side portion of the grating 20. 30 is always energized.
In this embodiment, the elastic member 60 is disposed between the step portion 35 provided in the middle portion of the locking pin 30 and the inner side surface 52 a of the second side surface plate portion 52.
The elastic member 60 is a coil spring, and the rear end side 34 is inserted into the coil spring from the step portion 35 of the locking pin 30 and is in a fitted state. That is, the coil spring 60 is fitted and positioned in a thin portion of the locking pin, and is attached between the step portion 35 and the inner side surface 52a of the second side plate portion 52 so as not to fall off. Yes.

Reference numeral 37 denotes a protruding portion, which is provided in a state of protruding outward from the side surface of the locking pin 30.
In this embodiment, a bolt is screwed onto the locking pin 30 in a female screw cut in a direction perpendicular to the axis, so that the bolt forms an arm shape in a direction perpendicular to the axis of the locking pin 30. A protruding portion 37 is formed in the protruding shape. According to this, it is a structure which only screws a volt | bolt and can be manufactured easily.
Of course, the present invention is not limited to this configuration, and for example, the locking pin 30 and the protruding portion 37 may be integrally formed.

  Reference numeral 75 denotes a stopper portion which is provided on a member constituting the main body member 50 and is engaged with the protruding portion 37 when the locking pin 30 moves to the inside of the grating 20. The locking pin 30 is held against the urging force of the elastic member 60 so that the distal end portion 31 does not protrude outward from the side portion of the grating 20.

In this embodiment, the stopper portion 75 is formed in a substantially slit-shaped guide hole 70 that extends along the movement direction of the locking pin 30 in the upper surface plate portion 57 that constitutes the main body member 50. The stopper portion 75 is a hook-shaped hooked portion. In addition, a protruding portion 37 is fitted in the guide hole 70 so that the locking pin 30 can move along the guide hole 70 and limit the movement range of the locking pin 30.
Accordingly, the locking pin 30 set on the main body member 50 is suitably held without dropping from the main body member 50. That is, the locking pin 30 is determined by the fitting relationship between the protruding portion 37 and the guide hole 70 so that the state of being fitted over the first through hole 55 and the second through hole 56 of the locking pin 30 is maintained. The movement range is limited.

The grating fixture 10 configured as described above is fixed to the grating 20 by welding W to the grating bar 21 as shown in FIGS. FIG. 2 shows a state in which the locking pin 30 protrudes, and FIG. 3 shows a state in which the locking pin 30 is stored.
Reference numeral 22 denotes a grating side plate bar, which is provided with an opening hole 23 so that the tip 31 of the locking pin 30 can protrude. As shown in FIG. 4, the distal end portion 31 of the locking pin 30 protrudes from the opening hole 23 and can be locked to a locked portion 40 provided on the inner wall 26 of the opening 25 such as a side groove. .

  The locked portion 40 of this embodiment is a hole 41 having a diameter larger than the diameter of the distal end side 32 of the locking pin 30, and the contacted portion 42 in which the opening edge portion of the hole 41 contacts the locking pin 30. It has become. The position of the locking pin 30 is shallower than that of the locked portion 40 so that the middle portion of the slope 33 formed on the upper surface side of the distal end portion 31 of the locking pin 30 contacts the contacted portion 42. Has been placed. That is, when the grating 20 is laid, the locked portion 40 and the grating fixture 10 are positioned so that the upper surface 32a of the distal end side 32 of the locking pin 30 is shallower than the depth position of the contacted portion 42. The height position has been adjusted.

  Since the positional relationship between the locked portion 40 and the grating fixture 10 is set in this way, the locking pin 30 is urged so as to always protrude by the elastic member 60 and the locking relationship is maintained. The grating 20 can be securely and suitably fixed to the opening 25. That is, when an external force that creates a gap is applied between the distal end portion 31 of the locking pin 30 and the contacted portion 42 of the locked portion 40, the locking pin 30 is pushed by the elastic member 60. The contact state can be maintained as usual. In particular, since the tip 31 of the locking pin 30 is always in close contact with the contacted portion 42 of the locked portion 40, noise can be prevented.

  When the grating 20 is desired to be removed from the opening 25, the engagement between the locking pin 30 and the locked portion can be achieved by grasping the protruding portion 37 and sliding the locking pin 30 to the inside of the grating 20. The stop relationship can be easily released. And since the protrusion part 37 of the latching pin 30 can be prevented from protruding by hooking the protruding part 37 on the stopper part 75, the grating 20 can be easily removed from the opening part 25. Therefore, it is possible to appropriately cope with an emergency such as a fire.

Next, a grating fixture 10a according to another embodiment will be described with reference to FIGS.
FIG. 5 is a perspective view showing an embodiment of the grating fixture 10a according to the present invention, and FIG. 6 is a cross-sectional view showing a state in which the grating fixture 10a of FIG. 5 is fixed to the grating 20a by bolts and nuts. is there.
The basic configuration of the grating fixture 10a is the same as that of the embodiment described above, and the components having the same functions are denoted by the same reference numerals and description thereof is omitted.

The main body member 50 of the present embodiment includes a base plate 62 including a bottom plate portion 58, the first side plate portion 51 and the second side plate portion 52 at both ends, and a top plate portion 57 and a third plate so as to cover the base portion. The side plate portion 53 and the fourth side plate portion 54 and a pair of winding portions 64 provided so as to wind the bottom plate portion 58 from both the third side plate portion 53 and the fourth side plate portion 54. , 64 and a peripheral folded plate portion 63. A guide hole 70 is provided in the upper surface plate portion 57 as in the above-described embodiment.
A fixing bolt 65 is provided so as to protrude outward from the bottom plate portion 58 so as to be fixed to the fixed portion 76 with the pair of winding portions 64 interposed therebetween. The fixed portion 76 shown in FIG. 6 is a plate material fixed to the grating 20a by welding or the like.
In addition, a drain hole 58a is provided in the center of the bottom plate portion 58 so as to prevent accumulation of dust and water.

In this embodiment, a cover member 77 that covers the guide hole 70 of the upper surface plate portion 57 is provided. The cover member 77 has a U-shaped cross section, and is fitted to the upper portion of the surrounding folded plate portion by the bent portions 78 and 78 on both sides. Thereby, the upper surface plate portion 57 is stably covered.
According to this, intrusion of soil, sand, or dust into the main body member 50 can be prevented, and the attaching / detaching function of the grating fixture 10a can be appropriately protected. In other words, it is possible to prevent clogging up with dust and the like, thereby hindering the function of the elastic member 60 and the function of sliding movement of the locking pin 30.
The cover member 77 may be formed of a transparent material so that the guide hole 70 can be visually recognized. Further, on the surface of the cover member 77, an operation method for the protruding portion 37 and the like may be appropriately displayed.

Next, based on FIGS. 7-9, the relationship between the form of the front-end | tip part 31 of the latching pin 30 concerning this invention and the form of the to-be-latched part 40 is demonstrated.
The top end portion 31a of the locking pin 30a in FIG. 7 is formed with a slope 33a on the upper surface side, and the downward receiving surface 43 provided from the contacted portion 42a of the locked portion 40a is a surface parallel to the horizontal plane. . Since the locking pin 30a is always pressed by the urging force of the elastic member 60 so as to contact the contacted portion 42a, the locking pin 30a is preferably locked and the grating 20 can be suitably fixed as described above.

8 and 9, locked portions 40b and 40c to which the tip portions 31b and 31c of the locking pins 30b and 30c are locked are formed on the inclined surfaces 45b and 45c. That is, the downward receiving surfaces of the locked portions 40b and 40c are inclined surfaces 45b and 45c that descend toward the back.
Since the tip 31b of the locking pin 30b in FIG. 8 is also formed on the inclined surface 33b, the contact area between the locked portion 40b and the inclined surface 45b is increased, and stable locking is possible.
Further, the distal end portion 31c of the locking pin 30c in FIG. 9 is formed such that the peripheral edge 33c of the end surface is chamfered or rounded, and the peripheral edge 33c is in contact with the inclined surface 45c of the locked portion 40c. Has become a department. Also in this manner, substantially the same as in the case of FIG. 7, the locking pin 30c is preferably locked to the locked portion 40c, and the grating 20 can be suitably fixed.

Next, with reference to FIGS. 10 to 13, another mounting mode for the grating 20 b of the grating fixture 10 a according to the present invention will be described. FIG. 10 is a perspective view showing the mounting configuration, and FIG. 11 is a side view thereof. FIG. 12 is a side view showing a state in which the grating 20b is laid in the opening 25b by using the mounting form. FIG. 13 is a perspective view showing a locked metal fitting 99 used when the grating shown in FIG. 12 is laid.
In addition, about the structure same as the grating fixture 10a demonstrated above, the same code | symbol is attached | subjected and description is abbreviate | omitted.

Reference numeral 80 denotes a base plate, and the grating fixture 10 a described with reference to FIGS. 5 and 6 is fixed to the center of the base plate 80 in the width direction by bolts 65 and nuts 66.
Reference numeral 83 denotes a mounting side plate portion, which is erected from each side portion of the base plate 80 to which the grating fixture 10a is fixed, and has hook portions 84 that are hung on the grating bar 21b at the upper end portion. A pair is provided.
The mounting side plate portion 83 includes a folded plate portion 85 that is bent at a right angle outward at a lower end portion, and is fastened to the base plate 80 by tightening a nut 81 through a bolt 81 at that portion. The fixing method is not limited to this, and a known method such as welding or caulking may be used as appropriate.

Reference numeral 90 denotes a clamping and fixing means, which is arranged between the hook portion 84 of the mounting side plate portion 83 and the base plate 80 and is extended by screws, whereby the grating bar 21b is sandwiched and fixed therebetween.
This clamping / fixing means 90 is screwed into the columnar female screw 91 and a columnar female screw 91 that is fitted in a slit hole 86 that is elongated in the vertical direction in the mounting side plate portion 83 and arranged to be movable up and down. And a bolt 92. That is, the grating bar 21b is sandwiched by being stretched by the columnar female screw 91 and the bolt 92.
In order to turn the bolt 92 to attach to and detach from the grating bar 21b, the wrench 92a provided in the head of the bolt 92 is inserted into the wrench hole 92a through the through hole 88 opened in the base plate 80 and the folded plate portion 85. 93 is inserted. In this embodiment, a hexagonal wrench 93 is used as shown in FIG.

Further, the bolt 92 of the clamping and fixing means 90 is held by a holding metal fitting 94 that is inserted into the bolt 92 and fixed to the base plate 80 and / or the attachment side plate portion 83. In this embodiment, the bolts 81 are passed through and fixed to both ends of the holding fitting 94.
Thereby, the columnar female screw 91 and the bolt 92 are preferably prevented from dropping from the mounting side plate portion 83. The holding metal 94 also acts as a detent for the bolt 92.
Note that the columnar female screw 91 of this embodiment is provided so that it can move in the vertical direction along the slit hole 86 because the linkage piece 91 a provided at the upper end of the columnar female screw 91 fits into the slit hole 86. . Also by the action of the link piece 91a, the columnar female screw 91 and the bolt 92 are preferably prevented from falling off from the mounting side plate portion 83.

Further, when fixing the grating 20b with the grating fixture 10a of the present embodiment attached to the opening 25b of the existing side groove, the locked metal fitting 99 as shown in FIG. 13 is opened as shown in FIG. It is good to fix to the inner wall 26b of the part 25b, and to use as the to-be-latched part 40. The locked metal fitting 99 can be easily formed by bending a metal plate, is excellent in strength, and can lock the locking pin 30 suitably.
Further, regarding the plurality of mounting holes 98a and 98b through which the anchor bolts 97 for mounting the locked metal fittings 99 are inserted, if at least one of them is a long hole, the degree of freedom of mounting increases, and the workability improves. .
Reference numeral 27 denotes a height adjusting laying material, which is arranged on the placement step portion 28 of the opening 25b in order to adjust the laying height of the grating 20b, and is a table on which the grating 20b is placed. It is a frame.

  By the way, as shown in FIG. 14, the form of the guide hole 70a provided in the upper surface plate portion 57a may be a bent shape so that the locking pin 30 can be put in and out appropriately. According to this embodiment, when the locking pin 30 is in the retracted state, the protruding portion 37a fits into the stopper portion 75a and is positioned at the center in the width direction of the upper surface plate portion 57a. It can be held stably and straight. Therefore, the operability is improved and the handling is easy.

  As described above, the present invention has been variously described with reference to preferred embodiments. However, the present invention is not limited to these embodiments, and many modifications can be made without departing from the spirit of the invention. Of course you get.

It is a perspective view which shows one form of the fixing tool of the grating concerning this invention. It is sectional drawing which shows the fixing tool of the grating of the state from which the latching pin protruded. It is sectional drawing which shows the fixing tool of the grating of the state in which the latching pin was accommodated. It is sectional drawing which shows the state by which grating was laid in opening parts, such as a side groove. It is a perspective view which shows another form of the fixing tool of the grating concerning this invention. It is sectional drawing which shows the fixing tool of the grating of the state from which the latching pin protruded. It is a side view which shows one form of the relationship between the front-end | tip part of a latching pin, and a to-be-latched part. It is a side view which shows the other form of the relationship between the front-end | tip part of a latching pin, and a to-be-latched part. It is a side view which shows the other form of the relationship between the front-end | tip part of a latching pin, and a to-be-latched part. It is a perspective view which shows the example of mounting | wearing to the grating of the fixing tool of grating. It is a side view explaining the example of mounting | wearing of FIG. It is sectional drawing in which grating is laid in the opening part, such as a side groove. It is a perspective view which shows the to-be-latched metal fitting used in the case of laying of grating. It is a top view which shows the example of a form of the guide hole provided in an upper surface board part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Fixing fixture 20 Grating 21 Grating bar 25 Opening 26 Inner side wall 30 Locking pin 31 Tip part 33 Slope 35 Step part 37 Protruding part 40 Locked part 45b Slope 45c Slope 50 Main body member 51 1st side plate Part 52 Second side plate part 53 Third side plate part 54 Fourth side plate part 55 First through hole 56 Second through hole 57 Top plate part 58 Bottom plate part 60 Elastic member 62 Base 63 Peripheral folded plate Part 64 Roll-in part 65 Fixing bolt 70 Guide hole 75 Stopper part 76 Fixed part 77 Cover member 80 Base plate 83 Mounting side plate part 84 Hook part 86 Slit hole 90 Nipping and fixing means 91 Columnar female screw 92 Bolt

Claims (7)

A fixing fixture for the grating that prevents the grating from coming off from an opening such as a side groove,
The tip is arranged to be movable in the horizontal direction parallel to the axial center so as to protrude outward from the side of the grating, and provided on the inner wall of the opening when the tip protrudes outward. A substantially rod-shaped locking pin formed so as to be locked to the locked portion;
A body member for guiding the movement of the locking pin and holding the locking pin;
An elastic member that is interposed between the main body member and the locking pin, and constantly urges the locking pin in a direction in which a tip end portion of the locking pin protrudes outward from a side portion of the grating;
A protruding portion provided in a state of protruding outward from the side surface of the locking pin;
When the locking pin is provided on a member constituting the main body member and the locking pin moves to the inside of the grating, the protruding portion is engaged, so that the tip of the locking pin is moved from the side of the grating. A stopper portion that holds the locking pin against the urging force of the elastic member so as not to protrude outward ,
The main body member is formed by bending a metal plate material, and is provided with a first side plate portion and a second side plate portion facing each other at a predetermined interval,
The locking pin is positioned over the through hole provided in each of the first side surface plate portion and the second side surface plate portion, and the distal end side of the locking pin is positioned on the first side surface plate portion side. And is arranged to be movable in a horizontal direction parallel to the axis of the locking pin,
The elastic member is disposed between a step portion provided in the middle portion of the locking pin and an inner surface of the second side plate portion,
The main body member includes a bottom plate portion, a base portion including the first side plate portion and the second side plate portion at both ends, a top plate portion, a third side plate portion, and a fourth side so as to cover the base portion. It comprises a peripheral folded plate portion having a face plate portion and having a pair of winding portions provided so as to wind the bottom plate portion from both the third side face plate portion and the fourth side face plate portion,
A grating fixing tool, wherein a fixing bolt is provided so as to protrude outward from the bottom plate portion so as to be fixed to a fixed portion with the pair of winding portions interposed therebetween . A substantially slit-shaped guide hole extending along the moving direction of the locking pin is provided in the upper surface plate portion constituting the main body member, the stopper portion is formed in the guide hole, and along the guide hole The protrusion is fitted so as to be movable and to limit the movement range of the locking pin ,
Fixture grating of claim 1, wherein a cover member for covering the guide hole of the upper plate portion is provided. A fixing fixture for the grating that prevents the grating from coming off from an opening such as a side groove,
The tip is arranged to be movable in the horizontal direction parallel to the axial center so as to protrude outward from the side of the grating, and provided on the inner wall of the opening when the tip protrudes outward. A substantially rod-shaped locking pin formed so as to be locked to the locked portion;
A body member for guiding the movement of the locking pin and holding the locking pin;
An elastic member that is interposed between the main body member and the locking pin, and constantly urges the locking pin in a direction in which a tip end portion of the locking pin protrudes outward from a side portion of the grating;
A protruding portion provided in a state of protruding outward from the side surface of the locking pin;
When the locking pin is provided on a member constituting the main body member and the locking pin moves to the inside of the grating, the protruding portion is engaged, so that the tip of the locking pin is moved from the side of the grating. A stopper portion that holds the locking pin against the urging force of the elastic member so as not to protrude outward,
A substantially slit-shaped guide hole extending along the moving direction of the locking pin is provided in the upper surface plate portion constituting the main body member, the stopper portion is formed in the guide hole, and along the guide hole The protrusion is fitted so as to be movable and to limit the movement range of the locking pin,
A grating fixture comprising a cover member covering the guide hole of the upper surface plate. A fixing fixture for the grating that prevents the grating from coming off from an opening such as a side groove,
The tip is arranged to be movable in the horizontal direction parallel to the axial center so as to protrude outward from the side of the grating, and provided on the inner wall of the opening when the tip protrudes outward. A substantially rod-shaped locking pin formed so as to be locked to the locked portion;
A body member for guiding the movement of the locking pin and holding the locking pin;
An elastic member that is interposed between the main body member and the locking pin, and constantly urges the locking pin in a direction in which a tip end portion of the locking pin protrudes outward from a side portion of the grating;
A protruding portion provided in a state of protruding outward from the side surface of the locking pin;
When the locking pin is provided on a member constituting the main body member and the locking pin moves to the inside of the grating, the protruding portion is engaged, so that the tip of the locking pin is moved from the side of the grating. A base plate to which a fixing fixture of a grating comprising a stopper portion that holds the locking pin against the urging force of the elastic member so as not to protrude outward is fixed;
A pair of mounting side plates each having a hook portion that is erected from both side portions of the base plate on which the fixing fixture of the grating is fixed and is hung on the grating bar at the upper end portion;
It is provided between the hook portion of the mounting side plate portion and the base plate, and includes a clamping and fixing means for clamping and fixing the grating bar between the two by extending with a screw. Grating fixture. The clamping and fixing means includes a columnar female screw that is fitted in a slit hole that is provided in the vertical direction on the mounting side plate portion so as to be vertically movable, and a bolt that is screwed to the columnar female screw. The grating fixture according to claim 4, wherein: 6. The fixing of the grating according to claim 5 , wherein the bolt of the clamping and fixing means is held by a holding fitting through which the bolt is inserted and fixed to the base plate and / or the mounting side plate. Ingredients. Grating, characterized in that the fixture grating of claim 2, 3, 4, 5 or 6, wherein is fixed.

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