Scaffolding deck

Abstract

To provide a scaffolding deck which can be easily installed on a scaffolding such as a one-side scaffolding and can be used as a foothold for a worker or a platform for placing an article. [Solution] The scaffolding deck 1 comprises a deck body 2 which constitutes the deck surface, and at least two mounting hooks 3A, 3B which are provided on one side edge of the deck body 2 with their tips facing downward and which are inserted from above into sockets 11X, 11Y of two scaffolding posts 10.

Description

[Technical field]

[0001] The present invention relates to a scaffolding deck that can be easily installed on a scaffold, particularly on one side of a scaffold, and can be used as a foothold for workers or a platform for placing objects. [Background technology]

[0002] For example, in one-sided scaffolding as shown in Patent Documents 1 and 2, the scaffolding board is installed in a protruding manner on one side of the support, so it is generally not possible to make the width of the scaffolding board wide. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 5-21049 [Patent Document 2] Japanese Patent Application Publication No. 11-229615 Summary of the Invention [Problem to be solved by the invention]

[0004] For this reason, it was difficult to secure space that could be used, other than scaffolding boards, for example as footholds for workers or as a temporary platform for placing tools, materials, and other items. At best, the only option was to use stepladders, etc., but this posed significant limitations on the conditions for where they could be used and the space that could be secured.

[0005] This invention has been made in consideration of the above-mentioned problems, and aims to provide a scaffolding deck that can be easily installed on a scaffold such as a one-sided scaffold, and can be used as a foothold for workers or a platform for placing items. A further object of the present invention is to provide a scaffolding deck as described above, which can be used for each type of scaffolding, even if the pitch between the scaffolding posts or the size of the sockets of the scaffolding posts differs, by simply preparing one type of scaffolding deck. [Means for solving the problem]

[0006] In order to achieve the above object, the present invention comprises the following aspects.

[0007] 1) A scaffolding deck that is attached across two parallel scaffolding posts having sockets on the sides that are open at the top and bottom, A deck body that constitutes the deck surface; A scaffolding deck having at least two mounting hooks provided at one side edge of the deck body with their tips facing downward and inserted from above into sockets of two scaffolding posts.

[0008] 2) The mounting hooks are comprised of two end mounting hooks provided at both ends of one side edge of the deck body, and two intermediate mounting hooks provided at two intermediate portions spaced a predetermined distance from both ends of one side edge of the deck body in the longitudinal direction of the deck body, A scaffolding deck as described above in 1), in which two end mounting hooks, two intermediate mounting hooks, or one of the end mounting hooks and the intermediate mounting hook furthest from the end mounting hooks are selectively inserted into the sockets of the two scaffolding supports depending on the pitch between the two scaffolding supports.

[0009] 3) A scaffolding deck as described above in 2), in which an engagement hook is provided below each intermediate mounting hook, which can prevent the deck body from floating up by engaging with a scaffolding post from the end side of each of the two ends of the deck body that is closer to each intermediate mounting hook.

[0010] 4) Each mounting hook has a first mounting hook portion and a second mounting hook portion provided at a predetermined distance from the first mounting hook portion in the longitudinal direction of the deck body, A scaffolding deck according to any one of 1) to 3) above, in which only the first mounting hook portion, or both the first mounting hook portion and the second mounting hook portion, are selectively inserted into the socket depending on the size of the socket of the two scaffolding posts.

[0011] 5) A scaffolding deck according to any one of 1) to 4) above, in which two handrail fixing insertion openings are provided on one side edge of the deck body, into which both ends of a gate-shaped handrail unit can be inserted and fixed. Effect of the Invention

[0012] According to this invention, in a scaffold such as a one-sided scaffold assembled using scaffolding posts with sockets on the sides (see Patent Documents 1 and 2), a scaffolding deck can be simply attached to straddle the two posts, and the deck can be used as, for example, a foothold for workers or a temporary platform for placing items such as tools and materials, thereby improving workability and safety on the scaffold. Patent Documents 1 and 2 do not disclose anything equivalent to the scaffolding deck. The scaffolding deck of the above aspect 2) is highly convenient because it can be installed on each scaffold by preparing only one type of scaffolding deck, without having to prepare multiple types of scaffolding decks corresponding to scaffolds with different pitches (spacing) between the scaffolding supports. In addition to the above effects, the scaffolding deck of the above aspect 3) has the advantage that even if a downward load such as a worker's tread pressure is applied to the end of the deck body that is closer to the intermediate mounting hook inserted into the socket of the support, the engaging hook prevents the deck body from floating up, thereby further improving safety. According to the scaffolding deck of the above aspect 4), even in cases where scaffolding posts with different socket sizes are used, it is not necessary to prepare multiple types of scaffolding decks to accommodate them, but rather it is possible to install only one type of scaffolding deck, which is highly convenient. Furthermore, according to the scaffolding deck of the above aspect 5), the handrail unit can be easily installed along one side edge of the deck body, further enhancing safety. [Brief description of the drawings]

[0013] [Figure 1] FIG. 1 is a perspective view of a scaffolding deck according to an embodiment of the present invention. [Diagram 2]1A, 1B, and 1C are diagrams showing a scaffolding deck with some parts omitted, where (a) is a plan view, (b) is a front view, and (c) is a side view. [Diagram 3] This is an oblique view of the area near the intermediate mounting hook of the scaffolding deck from below. [Figure 4] This is a perspective view showing the scaffolding deck installed on a scaffolding where the pitch between the scaffolding posts is medium size (1500 mm) and the sockets of the scaffolding posts are of the wide type. [Diagram 5] 5 shows the scaffolding deck in the state shown in FIG. 4, where (a) is a plan view, (b) is a front view, and (c) is a side view. [Figure 6] This shows the state in which the intermediate mounting hook of the scaffolding deck is inserted into the wide socket of the scaffolding support, where (a) is a plan view, (b) is a front view, and (c) is a perspective view from below. [Figure 7] This is a perspective view showing the scaffolding deck installed on a scaffolding where the pitch between the scaffolding posts is long size (1800 mm) and the sockets of the scaffolding posts are of wide type. [Figure 8] This is a perspective view showing the scaffolding deck installed on a scaffolding where the pitch between the scaffolding posts is short size (1200 mm) and the sockets of the scaffolding posts are of the wide type. [Figure 9] FIG. 1 shows the state in which the intermediate mounting hook of the scaffold deck is inserted into the vertical socket of the scaffold support, where (a) is a plan view, (b) is a front view, and (c) is a perspective view seen from below. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] A scaffolding deck according to an embodiment of the present invention will be described below with reference to Figs. In the following description, the bottom of Figures 2(a) and 6(a) will be referred to as the "front" and the top of Figures 2(a) and 6(a) will be referred to as the "rear", and left and right will refer to the left and right when viewed from the front (for example, the left and right of Figures 2(b) and 6(b)).

[0015] The scaffolding deck (1) of this embodiment is attached across two parallel scaffolding posts (10) that have sockets (11X) (11Y) that open at the top and bottom on their sides, and is equipped with a deck main body (2) that forms the deck surface (20), and at least two (more specifically, four) mounting hooks (3A) (3B) that are provided on the front edge of the deck main body (2) with their tips facing downward and are inserted from above into the sockets (11X) (11Y) of the two scaffolding posts (10).

[0016] The deck body (2) includes a horizontal band-shaped deck plate (21) and two front and rear beams (22) joined and fixed to the front and rear edges of the deck plate (21) by welding or the like. The deck plate material (21) is made of a metal plate such as a steel plate, but other plate-like materials may be used. As shown in detail in Figures 2 and 6, the deck plate material (21) has a large number of holes (211) formed therein, which provide an anti-slip function for the deck surface (20) and also have the effect of reducing the weight of the deck body (2). The left and right ends of the deck plate material (21) are bent downward. The girder (22) is formed, for example, from a hollow steel material having a square cross section. Moreover, the deck body (2) of this embodiment is provided with a plurality of (more specifically, four) auxiliary rail members (23) that are secured to the front and rear beam members (22) on the underside thereof. The auxiliary crosspieces (23), like the girder members (22), are also made of, for example, hollow steel material with a square cross section, and are provided at positions corresponding to the four mounting hooks (3A) (3B) described in detail later (the left and right ends of the deck main body (2) and two intermediate portions spaced a specified distance from both ends).

[0017] In scaffolding such as one-sided scaffolding, the pitch between the scaffolding posts (10) is usually set to either long size (1800 mm), medium size (1500 mm), or short size (1200 mm) depending on the installation conditions and the size of the scaffolding boards used. The scaffolding deck (1) of this embodiment can be installed on scaffolding in which the pitch between the scaffolding posts (10) is set to any of the three sizes described above, by configuring the mounting hooks (3A) and (3B) as follows. Correspondingly, the overall length of the deck body (2) is set to be approximately the same as or slightly longer than the pitch between the long-size (1800 mm) scaffolding posts (10). That is, the mounting hooks consist of two end mounting hooks (3A) provided at both ends of the front edge of the deck main body (2), and two intermediate mounting hooks (3B) provided at two intermediate portions a predetermined distance in the longitudinal direction (left-right direction) of the deck main body (2) from both ends of the front edge of the deck main body (2). In the case of a scaffolding in which the pitch between the scaffolding supports (10) is medium size (1500 mm), one end mounting hook (3A) and the middle mounting hook (3B) farther from the end mounting hook (3A) are inserted into the sockets (11X) and (11Y) of the two scaffolding supports (10) as shown in Figures 4 and 5. Note that, although the right middle mounting hook (3B) and the left end mounting hook (3A) are inserted into the sockets (11X) of both supports (10) in Figures 4 and 5, the left middle mounting hook (3B) and the right end mounting hook (3A) may be inserted into the sockets (11X) of both supports (10) in the opposite manner. In the case of a scaffolding in which the pitch between the scaffolding supports (10) is long size (1800 mm), the two end mounting hooks (3A) are inserted into the sockets (11X) of the two scaffolding supports (10) and attached, as shown in FIG. 7. In addition, in the case of a scaffolding in which the pitch between the scaffolding supports (10) is short size (1200 mm), as shown in Figure 8, two intermediate mounting hooks (3B) are inserted into the sockets (11X) of the two scaffolding supports (10) and attached.

[0018] Brackets (24) are attached to the front edge of the deck body (2) at four locations corresponding to the mounting hooks (3A) and (3B). The brackets (24) are bent plate members that are generally U-shaped and open forward when viewed from the side, and their vertical walls (241) are joined and fixed to the outer surface of the front girder (22) and the front end of the auxiliary crosspiece (23) by welding or the like. The mounting hooks (3A) and (3B) are attached to the underside of the upper horizontal wall (242) of the bracket (24) with their tips facing downward. Here, the sockets (11X) and (11Y) of the scaffolding support (10) have a pair of side walls (12) and a central wall (13) connecting the leading edges of both side walls (12), and are usually provided at a predetermined pitch in the vertical direction on the front, rear, left, and right sides of the support (10). The central walls (13) of the sockets (11X) and (11Y) are inclined obliquely downward toward the support (10). When installing the scaffolding deck (1) according to the present invention, the sockets (11X) and (11Y) at the required height position on the rear side of each support (10) are used. Although not shown in the figure, the sockets (11X) and (11Y) on the front side of each support (10) are used to install a scaffolding board, for example, via a bracket. However, the sockets are broadly divided into two types differing in size: one is a wide-type socket (11X) in which the distance between both side walls (12) is nearly equal to the inner diameter of the support (10) as shown in Fig. 6, and the other is a vertically long type socket (11Y) in which the distance between both side walls (12) is considerably smaller than the inner diameter of the support (10) and the protruding length of both side walls (12) is longer than that of the wide-type socket (11X), as shown in Fig. 9. The scaffolding deck (1) of this embodiment employs the following configuration for the mounting hooks (3A) and (3B), thereby making it possible to install the scaffolding deck (1) on the scaffolding support (10) regardless of whether the socket is the wide type (11X) or the vertical type (11Y). That is, each of the mounting hooks (3A) and (3B) has a first mounting hook portion (31) and a second mounting hook portion (32). The second mounting hook portion (32) is provided on either the left or right side of the first mounting hook portion (31) at a predetermined distance in the left-right direction (the longitudinal direction of the deck main body (2)). In this embodiment, the first mounting hook portion (31) and the second mounting hook portion (32) each consist of a plate piece whose thickness direction is in the left-right direction, and are attached in a hanging manner to the underside of the upper horizontal wall portion (242) of the bracket (24). When the socket of the scaffolding pole (10) is of the wide type (11X), both the first mounting hook portion (31) and the second mounting hook portion (32) are adapted to be inserted into the socket (11X). When the socket of the scaffolding pole (10) is of the vertically long type (11Y), only the first mounting hook portion (31) is adapted to be inserted into the socket (11Y).

[0019] More specifically, the first mounting hook portion (31) is attached to the center of the left-right width of the lower surface of the upper horizontal wall portion (242) of the bracket (24). The first mounting hook portion (31) has a thickness that allows it to be inserted into a vertically elongated socket (11Y). A downward step (311) is formed at the rear edge of the first mounting hook portion (31) at the midpoint of its height. The first mounting hook portion (31) is inserted into a vertically long socket (11Y) to a depth where the upper edge of the socket (11Y) abuts against the underside of the upper horizontal wall portion (242) of the bracket (24), while it is inserted into a wide socket (11X) only to a depth where the upper edge of the central wall (13) of the socket (11X) abuts against the step (311) on the rear side edge. In the left end mounting hook (3A) and the middle mounting hook (3B), the second mounting hook portion (32) is attached near the left edge of the lower surface of the upper horizontal wall portion (242) so as to be located to the left of the first mounting hook portion (31) with a specified gap. In the right end mounting hook (3A) and the middle mounting hook (3B), the second mounting hook portion (32) is attached near the right edge of the lower surface of the upper horizontal wall portion (242) so as to be located to the right of the first mounting hook portion (31) with a specified gap. The above gap is set so that the second mounting hook portion (32) does not interfere with the socket (11Y) when the first mounting hook portion (31) is inserted into the vertically long socket (11Y). A downward step (321) is formed on the rear edge of the second mounting hook portion (32) at the same height as the step (311) on the rear edge of the first mounting hook portion (31). The first mounting hook portion (31) and the second mounting hook portion (32) are inserted into the wide-type socket (11X) to a depth where the upper edge of the central wall (13) of the socket (11X) abuts against the steps (311), (321) on the rear edges of both mounting hook portions (31), (32). In addition, the second mounting hook portion (32) has a thickness such that when the first mounting hook portion (31) and the second mounting hook portion (32) of the required two mounting hooks (3A) and (3B) are inserted into the wide-type sockets (11X) of the two scaffolding posts (10), the second mounting hook portion (32) can come into close proximity or loose contact with the inner surface of the outer side wall (12) of the socket (11X) in the left-right direction. With the above configuration, left-right misalignment and wobbling of the scaffolding deck (1) in the installed state is suppressed.

[0020] In addition to the above configuration, the scaffolding deck (1) of this embodiment is provided with a lower holding portion (6) that is provided below each of the mounting hooks (3A) and (3B) and abuts against the side of the scaffolding support (10). The lower holding portion (6) allows the scaffolding deck (1) to be installed in a more stable state. The illustrated lower retaining portion (6) is made of a vertical plate whose thickness direction is in the left-right direction, and is joined and fixed across the lower part of the front surface of the vertical wall portion (241) and the upper surface of the lower horizontal wall portion (243) of each bracket (24). The vertical front edge of this lower retaining portion (6) is adapted to abut against the rear side of the support (10).

[0021] The scaffold deck (1) of this embodiment also includes engagement hooks (4) provided below the two intermediate mounting hooks (3B). The engagement hooks (4) are adapted to engage with the scaffolding posts (10) from the end sides of the left and right ends of the deck body (2) that are closer to each intermediate mounting hook (3B), thereby preventing the deck body (2) from floating up. More specifically, the engagement hook (4) is made of a horizontal plate piece bent into a substantially L-shape when viewed from above, and is attached to the lower horizontal wall portion (243) of the bracket (24). The engagement hook (4) located below the right-side intermediate mounting hook (3B) is configured to be able to engage with the support (10) from the right side (the right end side of the deck body (2)). The engagement hook (4) located below the left-side intermediate mounting hook (3B) is configured to be able to engage with the support (10) from the left side (the left end side of the deck body (2)). The concave edge of the engagement hook (4) is configured to be substantially arc-shaped so as to fit substantially along the side of the support (10). In an installation mode in which the intermediate mounting hooks (3B) on one or both sides are inserted into the sockets (11X) (11Y) of the scaffolding supports (10), if a downward load such as foot pressure by a worker acts on one of the two ends of the deck body (2) that is closest to the intermediate mounting hooks (3B), there is a risk that the other end of the deck body (2) will lift up due to the reaction. However, at that time, the engaging hooks (4) engage with the supports (10) from the one end side of the deck body (2), thereby preventing the deck body (2) from lifting up.

[0022] Furthermore, the scaffolding deck (1) of this embodiment is provided with two handrail unit fixing insertion openings (5) at the front edge of the deck main body (2) into which both ends of a gate-shaped handrail unit (7) can be inserted and fixed. Each insertion opening portion (5) consists of a vertical cylinder, and is fixed to the outer surface of the front girder (22) of the deck main body (2) by welding or the like. The handrail unit (7) shown in the figure includes two vertical support posts (71) on the left and right, a horizontal upper handrail part (72) that connects the upper ends of both support posts (71), and a horizontal middle handrail part (73) that connects the middle parts of the height of both support posts (71). The lower ends of the two support posts (71) are inserted from above into the two handrail unit fixing insertion openings (5), so that the handrail unit (7) is installed along the front edge of the deck main body (2). Note that the configuration of the handrail unit is not limited to the above embodiment and can be modified as appropriate. The arrangement of the two handrail unit fixing insertion openings (5) may be appropriately set according to the size of the handrail unit (7), etc., but in this embodiment, one insertion opening (5) is arranged between the left end mounting hook (3A) and the middle mounting hook (3B), and the other insertion opening (5) is arranged between the right end mounting hook (3A) and the middle mounting hook (3B). With this arrangement, the handrail unit (7) can be installed without any problems on scaffolding where the pitch between the scaffolding supports (10) is set to any of the three sizes mentioned above, and the handrail unit (7) allows the scaffolding deck (1) to be used safely.

[0023] The scaffolding deck (1) of this embodiment can be installed extremely easily in one-side scaffolding or other scaffolding by using the sockets (11X) (11Y) of the existing scaffolding posts (10), and can be effectively used as a foothold for workers or a platform for placing items. Furthermore, according to the scaffolding deck (1) of the present invention, even in scaffolding in which the pitch between the scaffolding supports (10) is different or in which the sockets (11X) (11Y) are different in size, only one type of scaffolding deck can be installed, making it highly convenient and economical. [Industrial Applicability]

[0024] The present invention is preferably used as a scaffolding deck that can be easily installed on a scaffold such as a one-sided scaffolding. [Explanation of symbols]

[0025] (1): Scaffolding deck (2): Deck body (21): Deck boards (211):hole (22): Girder material (23):Auxiliary beam material (24): Bracket (241):Vertical wall (242): Upper horizontal wall (243): Lower horizontal wall (3A): End mounting hook (3B): Intermediate mounting hook (31): First mounting hook part (311): Step at rear edge (32): Second mounting hook part (321): Step at rear edge (4): Engagement hook (5): Insertion port for fixing the handrail unit (6): Lower holding part (7): Handrail unit (71): Support section (72): Upper handrail (73): Intermediate handrail section (10): Scaffolding support (11X): Wide type socket (11Y): Vertical type socket (12):Side wall (13):Central wall

Claims

1. A scaffolding deck that is attached across two parallel scaffolding posts having sockets on the sides that open up and down, A deck body that constitutes the deck surface; At least two mounting hooks are provided on one side edge of the deck body with their tips facing downward and are inserted from above into sockets of the two scaffolding posts; The mounting hooks are comprised of two end mounting hooks provided at both ends of one side edge of the deck body, and two intermediate mounting hooks provided at two intermediate portions spaced a predetermined distance from both ends of one side edge of the deck body in the longitudinal direction of the deck body, The scaffold deck is adapted so that two end mounting hooks, two intermediate mounting hooks, or one end mounting hook and an intermediate mounting hook farther from the end mounting hook are selectively inserted into the sockets of the two scaffolding supports depending on the pitch between the two scaffolding supports.

2. A scaffolding deck as described in claim 1, wherein an engagement hook is provided below each intermediate mounting hook, which can prevent the deck body from floating up by engaging with a scaffolding post from the end side of each of both ends of the deck body that is closer to each intermediate mounting hook.

3. A scaffolding deck that is attached across two parallel scaffolding posts having sockets on the sides that open up and down, A deck body that constitutes the deck surface; At least two mounting hooks are provided on one side edge of the deck body with their tips facing downward and are inserted from above into sockets of the two scaffolding posts; Each mounting hook has a first mounting hook portion and a second mounting hook portion provided at a predetermined distance from the first mounting hook portion in the longitudinal direction of the deck body, A scaffold deck in which only the first mounting hook portion or both the first mounting hook portion and the second mounting hook portion are selectively inserted into the sockets depending on the size of the sockets of the two scaffold supports.

4. 4. A scaffolding deck according to claim 1 or 3, wherein one side edge of the deck body is provided with two handrail unit fixing insertion openings into which both ends of a gate-shaped handrail unit can be inserted and fixed.

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