JP6482429B2 - Grating coupling - Google Patents

Description

  The present invention relates to a connecting fitting for connecting adjacent gratings mounted in a side groove or the like.

  In order to prevent the rattling of the grating attached to the side groove or the like, or to prevent theft, the adjacent gratings are connected using a connecting metal fitting. In this type of known connecting bracket, a U-shaped clip is formed, a protruding piece is formed by a notch in the constricted portion of both side walls, and inserted into the adjacent grating end plates from above. Then, the projecting piece bites into the end plate and locked (Patent Document 1), a fitting section having a U-shaped cross section that fits from above to the grating bearing bars mounted adjacently, A fitting metal member formed by bending an inverted V-shaped mounting portion projecting sideways at the lower end of one side wall of the fitting portion, and the bearing bars are applied from the lower side. A vertical portion of the support portion that is inserted from below into the attachment portion and protrudes upward from the attachment portion. Screw the nut into the part Those to fix sandwiches the both bearing bar (Patent Document 2) and the like are known by.

  In addition, in the grating consisting of a thin plate-shaped main member (bearing bar) and a connecting member (cross bar) arranged orthogonal to the main member arranged side by side, the weight of the main member is reduced without slipping, and anti-slip Therefore, there is also known one in which the upper part of the main member is bent into a wave shape or a zigzag shape (Patent Document 3).

JP-A-9-250165 CD-ROM of Japanese Patent Application No. 3-113605 (Japanese Utility Model Application Publication No. 5-67687) JP 2002-349010 A

  The connection metal fitting disclosed in Patent Document 1 is lifted as one of the gratings adjacently connected rises, and one of the gratings cannot be prevented from rising from the other.

  In the connection metal fitting disclosed in Patent Document 2, it is possible to prevent one of the gratings that are adjacently connected from being lifted, but it is not possible to prevent the main member from shifting in the longitudinal direction. If the width of the connecting member in the longitudinal direction of the main member is made equal to the interval of the connecting members, the main member can be prevented from shifting in the longitudinal direction, but the connecting member becomes large, which increases costs and impairs the appearance.

  An object of this invention is to provide the coupling metal fitting which can connect the grating as disclosed by patent document 3 without producing the above problems.

  The invention according to claim 1 is a thin plate-like shape, and the upper portion has a corrugated or zigzag shape in the longitudinal direction, and has a main member having vertical peaks and valleys, and a main member arranged in parallel to the main member. It is made of a connecting member fixed to the main member, and among the main members, at least the endmost main member of the adjacent grating facing each other has a depth from a peak to a valley formed in the upper part larger than the thickness of the main member. The upper plate is a connecting bracket for connecting the grating in which the mountain protrudes on both sides of the main member. A lower plate applied to the two main members from the lower side, and at least one side of the upper plate and the lower plate, the upper plate and the upper plate to sandwich and fix the main member from above and below Connect the lower plate to the main member A pin attached to a state where the pin is fitted in a mountain or valley of the pin, and at least one of the upper and lower ends of the pin has a screw portion screwed into the upper plate or the lower plate, or A screw portion into which a nut is screwed into a protruding portion that is inserted into a plate or a lower plate and protrudes from the plate is provided.

  The invention according to claim 2 is a thin plate-like shape, and the upper part has a corrugated or zigzag shape in the longitudinal direction, and has a main member having vertical peaks and valleys, and a main member arranged in parallel to the main member. A coupling fitting for coupling a grating made of a coupling material fixed to a main member, the upper plate being applied from the upper side to both end members of adjacent gratings facing each other, and both the members The lower plate applied to the lower side of the upper plate and the lower plate, and at least one side portion of the upper plate and the lower plate, the upper plate and the lower plate are coupled to sandwich and fix the main member from above and below, It consists of pins that connect the upper and lower upper and lower plates sandwiching the main member, the pins forming a stepped shape at the upper part, projecting laterally from the lower part thereof, and a mountain or valley above the main member And has an overhanging portion that fits into the At least one of the upper upper end and the lower end of the pin has a screw portion that is screwed into the upper plate or the lower plate, or is inserted into the upper plate or the lower plate and protrudes from the plate. It has a screw part into which a nut is screwed into a projection part.

  The invention according to claim 3 is formed in a wave shape or zigzag shape as a whole, and is fixed to the vertical main member orthogonally to the main member having vertical peaks and valleys from the upper end to the lower end, and the main members arranged in parallel. A connecting metal fitting for connecting a grating made of a connecting material, the upper plate being stretched over the two main members facing each other from the upper side of the adjacent grating, and the two main members from the lower side Of the lower plate to be applied and at least one side portion of the upper plate and the lower plate, the upper plate and the lower plate are sandwiched and fixed in a state of being fitted between the mountains of the main member. It consists of a pin that connects the plates, and at least one of the upper and lower ends of the pin has a screw portion that is screwed into the upper plate or the lower plate, or is inserted into the upper plate or the lower plate, A nut is screwed into the protruding part protruding from the plate. It characterized by having a Murrell threaded portion.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the fixing pin parallel to the pin is connected to one of the upper plate and the lower plate connected by the pin at one side portion. The fixing pin is locked to an upper plate or a lower plate that rotates around the pin, or is inserted into a hole formed in the upper plate or the lower plate.

  The connecting bracket according to the present invention supports the main members facing each other of the grating installed adjacent to the side groove or the like by sandwiching the main members facing each other between the upper plate and the lower plate from above and below. Therefore, it is possible to prevent one of the gratings from being lifted or the connecting metal fitting from being detached from the main member due to the floating of the grating. Further, it is possible to prevent the relative displacement between the main member (grating) and the connecting metal fitting by fitting the pins of the connecting metal fitting to the upper part of the main member or the valley or mountain of the main member. In this respect, the inventions according to claims 1 to 3 all have special technical features in common and have unity of invention. In addition, the pin may be fitted and locked in any valley provided in the longitudinal direction of the main member, and the connection by the connecting bracket is not limited to one place in the longitudinal direction of the main member, but a plurality of places are connected. You can also

  In the connection fitting of the invention according to claim 4, the pin is screwed in by fixing the fixing pin to the upper plate or the lower plate or by inserting the pin into a hole formed in the upper plate or the lower plate. When the upper plate or the lower plate is locked, and the screwing operation is performed in this state, the upper plate or the lower plate moves up and down along the pins, and the main member is sandwiched and fixed from above and below. If the pin protrudes from the lower plate and does not protrude on the grating, the pedestrian or the vehicle can smoothly walk or travel without being caught by the pin.

The front view of the connection metal fitting which concerns on this invention. The top view of the principal part of the grating to which the connection metal fitting of this invention is applied. The enlarged plan view of the principal part which connected the main member of grating using the connection metal fitting shown in FIG. The front view of the connection metal fitting which connected the main member. The enlarged plan view of the principal part which connected the main member of another form using the coupling metal fitting shown in FIG. The front view of the connection metal fitting which connected the main member shown in FIG. The front view of the connection metal fitting provided with the pin of another form. The enlarged plan view of the principal part which connected the main member using. The top view of the connection metal fitting shown in FIG. 7 which connected the main member. The same side view.

Hereinafter, the connection fitting of the embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a connecting metal fitting used to connect the opposite main end 2a of the main member (bearing bar) 2 of the grating 1 shown in FIG. 2 mounted adjacent to a side groove or the like. The grating 1 is arranged so that the upper part 2b is bent in a wave shape and has a thin plate-like main member 2 having vertical peaks and valleys, and a main member arranged in parallel, and is electrically resistance welded to the upper part of the main member. As shown in FIG. 3, the depth H of the peaks and valleys at the top of the main member is larger than the wall thickness t of the main member 2 below the top. Thus, the mountain protrudes from the main member 2 below the upper part to the inside inside the grating and the outside outside the grating.

  The main member 2 of the illustrated grating 1 has a wavy upper portion 2a, but may be formed in a zigzag shape. Further, the main member upper portion 2a has a depth H from the peak to the valley only for the outermost main member 2 so that the pins constituting the connecting member described later can be fitted into the mountains or valleys. Well, even if the upper part of the other main members except the outermost main member 2 is bent in a wave shape, since the pin is not fitted in the mountain or valley, the depth from the mountain to the valley is shallow, and extremely For example, the main member 2 may not be formed so as to protrude laterally.

  The connecting bracket 5 includes an upper plate 6 and a lower plate 7 that are spanned between the upper and lower main members 2 a of the grating 1 that is mounted adjacent to the side groove and the like, and upper ends of the upper plate 6 and the upper plate 6. A fixed pin 8 fixedly supported by the screw 6, and a screw having a head portion 9a at the upper end and inserted through the upper plate 6 and having a screw portion 9b screwed into the screw hole of the lower plate 7 at the lower end portion. (Which may be bolt-shaped).

  The grating 1 mounted in the side groove or the like is connected by fixing the fixing pin 8 to the upper plate 6 and adjoining the grating 9 with the pin 9 passing through the hole formed in the upper plate 6 until the head 9a hits the upper plate 6. The upper plate 6 of the coupling metal 5 is bridged from the main member 2 between the main members 2 facing each other, the fixing pin 8 is applied to one of the facing main members 2a from the inside of the grating, and the main member facing the pin 9 2 is applied to the other side of the grating, and the upper portions of the pins 8 and 9 are fitted into the mountain (valley) protruding to the side of the upper portion of the main member and attached to the main member 2a. Next, in a state where the lower plate 7 is applied from the lower side of the main member between the outermost main members, the screw portion 9 b at the lower end is screwed into the screw hole of the lower plate 7 by the screwing operation of the pin 9. . By this screwing, the lower plate 7 is rotated in the clockwise direction in FIG. When the screwing of the pin 9 is continued in this state, the lower plate 7 is pressed against the pin 9 and lifted in a state of being prevented from rotating, and the main member 2 is sandwiched and fixed from the upper plate 6 from above and below. FIG. 4 shows a state in which the main member 2 a is fixed by the connecting metal fitting 5.

  According to the connecting metal fitting of the present embodiment, the endmost main members 2a of adjacent gratings facing each other are fixed by being sandwiched from above and below by the upper plate 6 and the lower plate 7, and one of the gratings 1 is lifted or the grating 1 It is possible to prevent the connecting metal fitting 5 from being lifted from the main member 2a and coming off due to the lifting. Further, when the pins 8 and 9 of the connecting metal fitting 5 are fitted between the valleys or peaks of the upper part of the main member, the relative displacement between the main member 2 (grating 1) and the connecting metal fitting 5 is restricted, and the pin 8 is on the grating. The head 9a of the pin 9 does not protrude, and the protruding amount of the pin 9 is extremely small, so that a pedestrian does not walk or interfere with the running of the vehicle.

The fixing pin 8 may be inserted into a hole formed in the lower plate 7. As a result, similarly to the above, the lower plate 7 is prevented from rotating, and cannot be rotated around the pin 9 even if the pin 9 is screwed.
The connection by the pin 9 may be performed by passing through the lower plate 7 from the lower side of the lower plate 7 and screwing it into the upper plate 6 in the opposite manner. In this case, the pin 9 protrudes from the upper plate 6, but if the amount of protrusion is small, it will not hinder walking or running of the vehicle.

  In the above embodiment, the fixing pin 8 prevents the lower plate 7 from rotating and does not connect the upper plate 6 and the lower plate 7. However, like the pin 9, the upper plate 6 and the lower plate 7 may be connected. . When connecting the upper plate 6 and the lower plate 7, it is configured in the same manner as the pin 9, and after passing through the upper plate 6, it is screwed into the lower plate 7 and fastened, or is passed through the lower plate 7. A nut is screwed into the threaded portion protruding from 7 to be fixed.

  The interval between the fixing pin 8 and the pin 9 of the coupling metal 5 is such that the main members face each other if the pins 8 and 9 are fitted in the mountains of the main member upper part 2a facing each other and the movement is restricted by the mountains. It may be larger than the distance 2a and slightly spaced from the main member 2a, but preferably the distance between the main member upper parts 2a (to be precise, the pins 8 and 9 of the main member upper part 2a facing each other engage with each other). The distance between the engagement points, that is, the distance between the engagement point of one main member upper part 2a with which the pin 8 engages and the engagement point of the other main member upper part 2a with which the pin 9 engages is narrower and in a connected state. It is desirable that the pins 8 and 9 push the main member upper portion 2a so that the space between the upper portions of the main members is narrowed to fix the grating 1 in the longitudinal direction and further in a direction perpendicular to the direction so as not to move.

  Although the example in which the connecting member 5 of the embodiment is applied to the grating 1 in which the upper part of the main member forms a wave shape, the connecting metal part 5 is similarly applied to the grating in which the upper part of the main member forms a zigzag shape.

  5 and 6 show not only the upper part of the main member but also the entire main member 11 that is wavy or zigzag-shaped, and that has vertical peaks and valleys that extend from the upper end to the lower end. The example which connected the member 11a using the connection metal fitting 5 shown in FIG. 1 is shown, The connection of the main member 11 by the connection metal fitting 5 is a mountain or trough from the upper end of the main member 11a to the lower end of the main member 11a. This is carried out in the same manner as in the above-described embodiment in a state where it is fitted to.

  FIG. 7 shows another embodiment of the connection fitting 13. The pin 16 corresponding to the pin 8 and the pin 17 corresponding to the pin 9 for connecting the upper plate 14 and the lower plate 15 are stepped. Projecting portions 16a and 17a having large diameters projecting laterally from the lower portion of the upper portion and fitting into the valleys of the upper portion 2a of the main member are formed on the upper portion, and the projecting portions 16a and 17a are shown in FIGS. As shown, the main member upper part 2a is engaged with a mountain or a valley, and also in this connection fitting 13, the main member 2 is connected to the overhang portions 16a and 17a of the pins 16 and 17, respectively. This is performed in the same manner as in the above-described embodiment in a state of being fitted in a mountain or valley at the top of the member.

1 .. Grating 2, 15.. Main member 3.. Connecting material 5, 13... Connecting bracket 6, 14 .. Upper plate 7, 15.

Claims (4)

  The main plate has a thin plate shape, and the upper portion has a corrugated or zigzag shape in the longitudinal direction, and has vertical peaks and valleys, and a connecting member fixed to the main member orthogonal to the main members arranged side by side. Among the main members, at least the endmost main member of the adjacent grating facing each other has a depth from a crest to a trough formed in the upper portion larger than the thickness of the main member, and the crest is the main member. A connecting metal fitting for connecting the gratings projecting on both sides of the upper plate, the upper plate being stretched over the two main members facing each other from the upper side of the adjacent grating, and the lower members The upper plate and the lower plate are connected in order to sandwich and fix the main member from above and below in at least one side portion of the lower plate applied from the side and both sides of the upper plate and the lower plate, Fits into a mountain or valley above the member A pin attached to the upper and lower ends of the pin, and at least one end of the pin has a screw portion that is screwed into the upper plate or the lower plate, or is inserted into the upper plate or the lower plate. A connecting bracket characterized by having a screw portion into which a nut is screwed into a protruding portion protruding from the plate.   The main plate has a thin plate shape, and the upper portion has a corrugated or zigzag shape in the longitudinal direction, and has vertical peaks and valleys, and a connecting member fixed to the main member orthogonal to the main members arranged side by side. A connecting bracket for connecting the grating, and an upper plate that is stretched over the uppermost main members of the adjacent grating facing each other from the upper side, and a lower plate that is applied to the both members from the lower side. The upper and lower upper and lower plates sandwich the main member by connecting the upper plate and the lower plate so as to sandwich and fix the main member from above and below at least one side portion of both sides of the plate and the upper and lower plates. The pin comprises a pin that connects the plate and the lower plate, and the pin has a stepped shape at the top, and a protruding portion that protrudes laterally from the lower portion thereof and fits into a mountain or valley above the main member. And having an upper end on the overhang and a lower end of the pin Of these, at least one end has a screw portion to be screwed into the upper plate or the lower plate, or is inserted into the upper plate or the lower plate, and the nut is screwed into the protruding portion protruding from the plate. A connecting bracket having a threaded portion.   The whole is wavy or zigzag, and connects the main member having vertical peaks and valleys from the upper end to the lower end, and the grating made of the connecting member fixed to the vertical main member orthogonal to the main members arranged side by side. A connecting plate for the upper plate that is applied to the uppermost main members of the adjacent grating facing each other from the upper side, the lower plate applied from the lower side to the two main members, Among the both sides of the upper plate and the lower plate, at least one side portion is composed of a pin that connects the upper plate and the lower plate so as to sandwich and fix the main member in a state of being fitted between the mountains of the main member, Of the upper and lower end portions of the pin, at least one end portion has a screw portion that is screwed into the upper plate or the lower plate, or is inserted into the upper plate or the lower plate and protrudes from the plate. Has a threaded part into which the nut is screwed Connecting fitting, wherein the door.   A fixing pin parallel to the pin is fixed to either one of the upper plate and the lower plate connected by the pin at one side, and the fixing pin rotates around the pin. The connecting bracket according to any one of claims 1 to 3, wherein the connecting bracket is inserted into a hole formed in the upper plate or the lower plate.