JPH0643084U - Bracket for grating - Google Patents

Abstract

(57) [Summary] [Purpose] Grating can be held uniformly at predetermined intervals.
Moreover, it is to provide a grating coupling fitting that is easy to manufacture. [Structure] The top plate portion 11a of the encapsulating portion 11 is formed with a pressing protrusion 17a, 17b which is fitted between the end bars 2a, 2a adjacent to each other to separate the end bars 2a, 2a at a predetermined interval. The gratings 1 and 1 are connected at a predetermined interval so that a uniform laying state can be maintained, and unlike the conventional configuration in which the belt-shaped plate member is bent to form the bending protrusion on the top plate portion 11a, the manufacturing is performed. Easy and curved tongue pieces 12,1
Since it comes into pressure contact with the inwardly facing surface 4 of the end bars 2a, 2a, a clamping force is applied to the end bars 2a, 2a, and the gratings 1, 1 are held stably.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a connecting fitting for connecting gratings adjacent to each other, which is used for various purposes such as being attached to a side groove.

[0002]

[Prior art]

 It is necessary to fix adjacent gratings in order to connect them to each other so as to keep them loose or prevent the gratings from being stolen. However, there are cases in which the grating cannot be fixed to the loading rack at its end when fixing it.

As another fixing means in this case, a means for connecting adjacent gratings to each other with a connecting fitting is adopted. As shown in FIG. 6, the conventional connecting metal fitting x used for such a method has a substantially rectangular cross-section with an elastic mouth portion y formed by a pair of curved pieces that expands outwardly. , The outermost two end bars 2a, 2a of the adjacent gratings 1, 1 are fitted by straddling them from above by the expansion operation of the elastic mouth portion y to surround the end bars 2a, 2a. Hold it in.

[0004]

[Problems to be solved by the device]

 By the way, with this configuration, the end bars 2a, 2a are arranged with a slight gap corresponding to the length of the groove, but they are positioned in the connecting metal fitting x in the direction of the arrow as much as possible. In the case of making the side plate portions z and z, the elastic force does not act at all, and there is a drawback that the holding is insufficient.

In order to eliminate the drawbacks of this configuration, as shown in FIG. 7, a U-shaped bent protrusion z is formed on the top of the connecting fitting x ′, and the bent protrusion z is formed on the end bar. There is also a structure in which the end bars 2a, 2a are positioned between the two bars 2a, 2a so that a predetermined distance is generated between the end bars 2a, 2a. However, in such a configuration, it is necessary to bend the plate material at a right angle of four degrees, and there is a drawback that manufacturing is troublesome. Further, in both the configurations of FIGS. 6 and 7, the elastic mouth portion y blocks the inside of the connecting fitting, and the end bars 2a, 2a are surrounded and held in the connecting fitting. Therefore, the end bars 2a, 2a are held. Must have a predetermined height, cannot be applied to the end bars 2a, 2a that exceed the predetermined height, and lacks versatility. SUMMARY OF THE INVENTION The present invention aims to provide a grating connecting fitting that does not have the above-mentioned drawbacks.

[0006]

[Means for Solving the Problems]

 The present invention is composed of a strip-shaped plate material, and is composed of a top plate portion and vertical plate portions on both sides, which are fitted to the adjacent end bars of the gratings laid adjacent to each other on the left and right sides from above. And a curved tongue piece elastically contacting the inward surface of the end bar downward from the vertical plate portions on both sides of the package portion, and the top plate portion. Further, the present invention is characterized in that the projecting projections are formed by being pressed between the end bars adjacent to each other so as to separate the both end bars at a predetermined interval.

[0007]

[Action]

 When the connecting metal fitting of the present invention is attached, the pair of curved tongues are aligned with the end bars 2a, 2a, and are hammered in from above with a mallet or the like. At this time, the curved surface of the curved tongue piece expands due to the guiding action, and the top plate portion of the wrapping portion is externally fitted in such a position as to come into contact with the upper edges of the end bars 2a, 2a. Then, in this mounted state, the embossing projection is fitted between the end bars 2a, 2a to maintain the grating at a predetermined interval.

[0008]

【Example】

 An embodiment of the present invention will be described with reference to the accompanying drawings. In FIG. 1, reference numeral 1 denotes a grating, which is a rectangular plate in which bearing bars 2a and 2b are arranged in parallel at regular intervals and are connected by twist bars 3 (see FIG. 1) orthogonal to each other. . When the grating 1 is applied to a side groove, for example, a large number of gratings 1 are arranged along the groove. At this time, it is desirable that the gratings 1 and 1 are laid at a slight interval so as to cope with an error in the groove length, and at equal intervals in order to improve the laid state. ing. Therefore, the above error can be dealt with by enlarging or closing the interval near the extreme end.

Reference numeral 10 denotes a connecting fitting according to the present invention, which is made of a strip-shaped plate material, and of the bearing bars of gratings 1 and 1 installed adjacent to each other, two adjacent outermost end bars 2a, 2a, which is fitted from the top over the top plate portion 11a and the vertical plate portions 11b and 11b on both sides, and the downward U-shaped enclosing portion 11 and the lower end portions of the vertical plate portions 11b and 11b on both sides. The curved tongue pieces 12 and 12 are curved inwardly and are coupled to each other. The end bars 2a, 2a have an I-shaped cross section as shown in FIG. 1, a T-shaped cross section as shown in FIG. 2 or a flat shape.

The curved tongue pieces 12, 12 have an inner edge and an outer edge that are larger than an interval between the opposing bars 2 a, 2 b of each grating 1, and have their inner edges constricted inwardly so that the end bars 2 a. The elastic press contact end 15 is in contact with the inward surface 4 and the outer edge is an elastic press contact end 16 in contact with the outward surface 5 of the bar 2b.

Further, the center of the top plate portion 11a is pressed with a punch or the like to be punched out in an arc shape, and a plate-shaped ejection projection portion 17a is formed downwardly to equally divide the inside of the enclosing portion 11a. is doing . Instead of the embossing protrusion 17a, the embossing protrusion 17b may be formed by a small protrusion-shaped bulge as shown in FIG.

A procedure for attaching the connecting fitting 10 will be described. First, the adjacent gratings 1 and 1 are brought close to each other, then the connecting metal fitting 10 is inclined with respect to the grating 1, and the enclosing portion 11 is externally fitted to the adjacent end bars 2a and 2a. 11a is hit with a mallet or the like, and the curved tongue piece 12 is press-fitted between the end bars 2a and 2b. Thus, as shown in FIGS. 1 and 2, the curved tongue 12 is located between the end bars 2a and 2b, and the elastic pressure contact end 15 of the curved tongue 12 is located on the inward surface 4 of the end bar 2a. The elastic pressure contact end 16 presses against the outward surface 5 of the bar 2b. Therefore, the space between the elastic pressure contact ends 15 and 16 is slightly contracted to elastically contact the inward surface 4 and the outward surface 5. At this time, when the end bars 2a, 2a have a T-shaped cross section (FIG. 2) and an I-shaped cross section (FIG. 1), the wide portion 4 is formed on the upper portion of the end bar 2a. The upper edge may be locked to the neck of the wide portion 4.

In this mounted state, the grating 1 is restrained from moving in the left-right direction by elastic contact of the elastic pressure contact ends 15 and 16, and is fixed so as to be immovable as determined by the projecting protrusions 17a and 17b. .

In the configuration shown in FIG. 3, the vertical plate portions 11b, 11b (or the front curved tongue pieces 12, 12) are provided with small projecting bulges 20, 20. The bulged portions 20 and 20 serve as the elastic pressure contact end 15. Thus, the elastic contact action of the curved tongue piece 12 with the inward surface 4 of the end bars 2a, 2a can be ensured. Also, by forming only one protrusion bulge 20, 20 as shown in the figure, it is possible to make a single point contact on both inward surfaces 4 and 4 of the end bars 2a, 2a. When fitting the connecting metal fittings 10 to the end bars 2a, 2a, while tilting the connecting metal fittings 10 slightly, the top plate parts 11a are alternately hammered into the left and right so as to be easily fitted onto the end bars 2a, 2a. The advantage is that it can be installed and the installation is simple.

In FIG. 4, the vertical plate portions 11b and 11b of the enclosing portion 11 are cut out, and the insertion groove 21 is fitted from the side to the twist bar 3 that is passed over substantially the center of the end bars 2a 1 and 2b. , 21 are formed. In such a configuration, the connecting metal fitting 10 is temporarily fitted around the end bars 2a and 2b while avoiding the twist bar 3, and further laterally pressed to move along the end bar 2a. It can be easily attached, and in such an attached state, the connecting metal fitting 10 is engaged with the twist bar 3 and cannot be pulled out upward, so that it can be stably held.

FIG. 5 shows that the curved tongue piece 12 has notches 22 and 22 formed substantially in the center thereof so that the twist bar 3 can be attached from above. It

In each of the above-mentioned configurations, the projecting projections 17a and 17b are formed on the configuration in which the tip of the curved tongue 12 is elastically contacted with the outward surface 5 of the bar 2b. However, the curved tongue piece 12 may be shortened to be elastically contacted only with the inward surface 4 of the end bar 2a.

[0018]

[Effect of device]

 According to the present invention, as described above, the projecting protrusions 17a, which are fitted into the top plate portion 11a of the enclosing portion 11 between the adjacent end bars 2a, 2a to separate the end bars 2a, 2a at a predetermined interval, Since 17b is formed by pressing, the gratings 1 and 1 are connected at a predetermined interval so that a uniform laying state can be maintained, and the belt-like plate material is bent to form a bending protrusion on the top plate portion 11a. Unlike the conventional configuration described above, the manufacturing is easy, and since the curved tongue pieces 12 and 12 are pressed against the inward surface 4 of the end bars 2a and 2a, a clamping force is applied to the end bars 2a and 2a. As a result, the gratings 1 and 1 are stably held, and they can be applied regardless of the height of the end bars 2a and 2a, so that they are versatile.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a grating 1, 1 and a connecting fitting 10.

FIG. 2 is a vertical cross-sectional side view showing a mounting state of a connecting fitting 10.

FIG. 3 is a perspective view showing a first modified example of the connecting fitting 10.

FIG. 4 is a perspective view showing a second modification of the connecting fitting 10.

FIG. 5 is a perspective view showing a third modification of the connecting fitting 10.

FIG. 6 is a vertical cross-sectional side view showing a connecting fitting x having a conventional configuration.

FIG. 7 is a vertical cross-sectional side view showing a connecting fitting x ′ having a conventional structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Grating 2a, 2a End part bar 10 Connecting metal fitting 11 Convex U-shaped encapsulation part 11a Top plate part 11b, 11b Vertical plate part 12 Curved tongue piece 15 Elastic pressure contact end 16 Elastic pressure contact end 17a, 17b Ejecting protrusion part 20, 20 Swelled portion 21,21 Fitting groove

Claims (1)

[Scope of utility model registration request] 1. A top plate portion and vertical plate portions on both sides, which are made of a strip-shaped plate material and which are externally fitted over adjacent end bars of gratings which are laid adjacent to each other on the left and right sides from above. And a curved tongue elastically in contact with the inward surface of the end bar downward from the vertical plate portions on both sides of the envelope portion, and the top plate portion. In the above, the grating connecting metal fitting is characterized in that the projecting protrusions are formed by pressing between the end bars adjacent to each other so as to separate the both end bars at a predetermined interval.