JP5973810B2 - Temporary staircase structure - Google Patents

Description

  The present invention relates to a temporary staircase structure. More specifically, the present invention relates to a temporary staircase structure which can be added to a direct temporary staircase and can be lifted and lowered from a side surface of the direct temporary staircase.

  In order to be used for the movement of the upper and lower floors of a building under construction, it has been conventionally practiced to install a temporary staircase using an atrium formed on the floor of the upper floor.

  In particular, in a detached house, a staircase is provided, and an atrium is formed on the floor of the second floor, and a temporary staircase is installed until a regular staircase is installed in the staircase.

JP 2008-208665 A

  However, in the temporary staircase using the blow-through portion, the lower end portion of the temporary staircase may contact or approach the wall surface depending on the installation position. In particular, in the case of a detached house, the staircase is often provided along one of the walls in order to take in external sunlight and on the layout plan of the building, and the lower end of the temporary scaffolding is placed on the wall. Very often in contact or close proximity.

  If the lower end of the temporary scaffold is in contact with or close to the wall surface, the wall surface blocks the ascending / descending direction of the temporary staircase, making it difficult to move up and down using the temporary staircase. Therefore, the movement from the temporary staircase to the lower floor or from the lower floor to the temporary staircase must be done from the side, not in the direction of raising or lowering the temporary staircase. There is a risk that. In the first place, the temporary staircase is installed in the building under construction, so there are many opportunities to use the temporary staircase while holding construction materials, tools, etc., and the risk due to insufficient installation of this temporary scaffolding is high. .

  In view of the above problems, an object of the present invention is to provide a temporary staircase structure that can be added to a direct temporary staircase and can be lifted and lowered from a side surface of the temporary staircase.

  The above-described problems include a straight-type temporary stair consisting of a pair of side plates and a plurality of treads fixed between the side plates, a landing attached to any one of the treads, and a temporary staircase fixed to the landing The problem is solved by a temporary staircase structure characterized by comprising elevating stairs attached to the side surface.

  In this temporary staircase structure, a landing is attached to the tread board of the temporary staircase, and the lifting staircase is attached to the side of the temporary staircase and is fixed to the landing, so it is approximately Even if an L-shaped temporary staircase is formed, and the lower end of the temporary scaffold is in contact with or close to the wall surface, and the wall surface blocks the up-and-down direction of the temporary staircase, Temporary stairs can be moved up and down.

  Moreover, since only the landing and the elevating staircase are attached to the temporary staircase, even an existing direct temporary staircase can be easily converted into a substantially L-shaped temporary staircase.

  In this temporary staircase structure, the side of the landing opposite to the side attached to the tread is provided with a support for supporting the landing, and the support is preferably supported by a tread below the step board to which the landing is attached. .

  The landing is supported by a support plate below the footboard to which the landing is attached. Stable. In addition, since the landing is supported by using the step board below the landing that is not used after the landing and the climbing staircase are attached, no extra space or members are required to support the landing, and the temporary staircase structure is efficiently Can be realized.

  Further, in this temporary staircase structure, the ascending / descending staircase includes a pair of side plates and a tread plate fixed between the side plates, and the pair of side plates are respectively attached to the landing area across one side plate of the temporary staircase. It is good to have.

  Since the pair of side plates of the ascending / descending stairs straddle one side plate of the temporary staircase and are attached to the landing, the ascending / descending stairs can be firmly attached to the landing.

  Since the present invention is as described above, it is possible to provide a temporary staircase structure which can be added to a direct temporary staircase and can be moved up and down from the side surface of the direct temporary staircase.

FIG. 1A is a side view showing a temporary staircase structure according to an embodiment of the present invention, and FIG. FIG. 1A is a side view showing a straight staircase, FIG. 2B is a plan view thereof, and FIG. 1C is a front view thereof. The figure (I) is a side view showing the landing, the figure (B) is the plan view, the figure (C) is the front view, the figure (2) is the plan view on the back side, and the figure (E) is It is a partial expanded side view of figure (A). FIG. 1 (a) is a side view showing an elevating staircase, FIG. 2 (b) is a plan view thereof, and FIG. Drawing (a) thru / or (2) is a perspective view showing the installation removal situation of a temporary staircase structure with Drawing 6 (e) thru (G). FIGS. 5E to 5G are perspective views showing the installation / removal status of the temporary staircase structure together with FIGS. 5A to 5B.

  Next, embodiments of the present invention will be described with reference to the drawings.

  In the temporary staircase structure 1 that is an embodiment of the present invention temporarily installed between the first floor and the second floor of a detached house shown in FIG. 1, 2 is a direct staircase suspended between the first floor and the second floor. 3 is a landing, 4 is an elevating staircase. In addition, 2A is a handrail attached to a direct staircase.

  The temporary staircase structure 1 is installed in a space for providing a staircase adjacent to the inner surface of the outer wall of the detached house 5 as shown in FIG. The lower end of the floor 6 is supported by the floor 7 of the first floor, and the lower end side lifting path of the straight staircase is closed by the inner surface of the outer wall.

  As shown in FIG. 2, the straight staircase 2 includes two bars 10 and 11 constituting a side plate, and a plurality of treads 12 fixed to a pair of left and right side members. Reference numeral 13 denotes a connecting member for connecting the bar members 10 and 11, 14 denotes a contact member that is pin-joined to the lower end portion of the bar member 11 and makes contact with the floor surface. Is affixed.

  Further, as shown in FIG. 1B, a handrail 2A may be attached to the bar 10 constituting the side plate. In this case, the handrail 2A is not installed up to the lower end of the direct staircase, but in order to move to the ascending / descending staircase via the landing, the lower limit for installing the handrail 2A is limited to the position where the landing is installed. It is good to leave.

  As shown in FIG. 3, the landing 3 includes a landing main body 20, a tread board engaging portion 21 that is provided on the back surface of the landing main body 20, and engages with the treads 12 of the direct staircase 2.

  The landing body 20 is a plate material having a substantially square shape in plan view that is substantially equal in width and long to the tread 12 of the direct staircase 2. The tread board engaging portion 21 is composed of I-shaped and L-shaped engaging pieces 22 and 23 arranged in parallel to the depth direction of the landing body 20, and is installed from the top of the tread 12 of the straight staircase 2. It can be engaged with the tread 12 by moving in the horizontal direction.

  The struts 24 are made of bar material, and are provided on the back surface of the landing body 20 and two on each side in the width direction end of the landing body 20. The support column 24 includes a clamp 25 that holds the side surface of the tread plate 12 and is movable in the length direction of the support column 24. The clamp 25 has a butterfly bolt 26 as a fixing mechanism for fixing the clamp 25 movable to the support 24 to the support 24 and a clamp 25 clamped on the side of the tread 12 to the tread 12. A butterfly bolt 27 as a fixing mechanism is provided.

  In addition, two protrusions 28 that engage with engagement holes 37 of the ascending / descending staircase 4 to be described later are arranged on the back surface of the landing body 20 in accordance with the interval between the pair of side plates of the ascending / descending staircase 4, respectively. A pair of protrusions 28 are provided so as to protrude in the same direction.

  As shown in FIG. 4, the ascending / descending staircase 4 is composed of two bars 30 and 31 constituting a side plate, and a plurality of treads 32 fixed to the pair of side members. 33 and 34 are connecting members for connecting the bar members 30 and 31, 35 is an abutting member which is pin-bonded to the lower end portion of the bar member 31 and abuts against the floor surface. A material 36 is affixed. Engagement holes 37, 37 for engaging the projections 28, 28 of the landing 3 are provided in the connection members 33, 33 provided at the upper end of the ascending / descending staircase 4.

  The temporary staircase structure 1 is installed as follows.

  As shown in Fig. 5 (a), it is installed in the atrium of the first and second floors of a detached house, with the lower end supported on the first floor and the upper end supported on the second floor. The landing 3 is attached to the step board 12 of the third step from the bottom of the straight staircase 2.

  As shown in FIG. 5 (b), the landing 3 is attached to the locking piece 22 of the tread plate engaging portion 21 formed of the I-shaped and L-shaped engaging pieces 22 and 23 provided on the back surface of the cross section 3 By inserting the tread board 12 between 23 and horizontally moving the landing 3, the L-shaped engagement piece 23 and the side surface of the tread 12 are engaged with each other, and the landing 3 is firmly fixed to the tread 12.

  As shown in FIG. 5 (c), the positions of the clamps 25, 25 provided on the two struts 24, 24 of the landing 3 are adjusted, and the clamp 25 is attached to the side surface of the first step board 12 of the direct staircase 2. , 25 are engaged, and the clamps 25, 25 are fixed to the tread 12 by the butterfly bolts 27, 27.

  As shown in FIGS. 5 (d) and 6 (e), the horizontal level of the landing 3 is adjusted by adjusting the mounting positions of the clamps 25, 25 with respect to the supports 24, 24, so that the landing 3 becomes horizontal. At this position, the clamps 25, 25 are fixed to the columns 24, 24 by the butterfly bolts 26, 26.

  Next, as shown in FIGS. 6F and 6G, the elevating staircase 4 is attached to the landing 3. The ascending / descending stairs 4 is attached to the landing 3 by engaging protrusions 37 provided on the right and left connecting members 33 33 provided at the upper end of the ascending / descending stairs 4 with projections provided on the back surface of the landing main body 20. 28 and 28 are inserted. Since the protrusions 28 and 28 protrude in the same direction, the protrusions 28 and 28 provided on both the left and right sides are engaged with the connecting members 33 and 33 by horizontally moving the ascending / descending staircase 4 from the side. The holes 37 and 37 can be easily inserted and fixed.

  The engagement holes 37, 37 are substantially bowl-shaped with two round holes of different sizes, one round hole being larger than the head of the projection 28, and the other round hole being the head of the projection 28. After inserting the projections 28 and 28 into one large round hole of the engagement holes 37 and 37, the projections 28 and 28 are slid toward the other small round hole, thereby engaging the engagement hole 37. , 37 can prevent the protrusions 28 and 28 from falling out, and the ascending / descending stairs 4 can be prevented from falling off the landing 3.

  In addition, since the landing 3 is provided with a pair of protrusions 28 at both ends in the width direction, the ascending / descending stairs 4 on either side of the straight staircase 2 depending on the situation of the temporary staircase installation location. Can be installed.

  In this temporary staircase structure, a landing is attached to the tread board of the temporary staircase, and the lifting staircase is attached to the side of the temporary staircase and is fixed to the landing, so it is approximately Even if an L-shaped temporary staircase is formed, and the lower end of the temporary scaffold is in contact with or close to the wall surface, and the wall surface blocks the up-and-down direction of the temporary staircase, Temporary stairs can be moved up and down.

  Since the landing is supported by the footboard below the landing, the landing is firmly and stably fixed to the temporary staircase by mounting on the footboard and supported by the support, and the temporary staircase landing is structurally stable Can be. In addition, since the landing is supported by using the step board below the landing that is not used after the landing and the climbing staircase are attached, no extra space or members are required to support the landing, and the temporary staircase structure is efficiently Can be realized.

  Moreover, since the height direction of the clamp provided in the support | pillar is movable, even if the step board height of a direct staircase differs, it can adjust and attach a height direction suitably.

  Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made without departing from the spirit of the invention. For example, in the above embodiment, the case of a temporary staircase structure that can be installed in an L-shape has been shown, but it may be realized by attaching a landing and an elevating staircase to an existing direct staircase. Even if an existing direct staircase is installed simply by installing a landing and an elevating staircase, an L-shaped temporary staircase can be obtained. In particular, the landing stage is attached to the direct staircase by the engagement of the landing landing part to the step board of the direct staircase, so a special attachment or the like is used even for an existing direct staircase. It can be easily installed without any problems.

  In the above embodiment, the landing is shown as being attached to the third step board from the bottom of the direct staircase, but the position of the tread board to which the landing is attached is not limited, and the temporary staircase structure is installed. It goes without saying that the position of the tread board to which the landing is attached is appropriately selected according to the situation.

  Furthermore, in the present embodiment, the case where the side plates of the straight staircase and the elevating staircase are constituted by two bars is shown, but the shape of the side plate is not limited to this, and one plate material Of course, it may be comprised by 3 or more rods, and it cannot be overemphasized that it may be based on methods other than this.

DESCRIPTION OF SYMBOLS 1 ... Temporary staircase structure 2 ... Direct staircase 3 ... Landing place 4 ... Elevating staircase 10,11 ... Bar material (side plate)
12 ... tread 24 ... prop

Claims (3)

  A straight temporary staircase composed of a pair of side plates and a plurality of treads fixed between the side plates, a landing attached to any one of the treads, and a lift fixed to the side of the temporary staircase fixed to the landing Temporary staircase structure characterized by comprising stairs.   The temporary scaffold according to claim 1, wherein a post supporting the landing is provided on a side opposite to the side attached to the step board of the landing, and the post is supported by a step board below the step board to which the landing is attached. Construction.   3. The ascending / descending staircase includes a pair of side plates and a tread plate fixed between the side plates, and the pair of side plates straddles one side plate of the temporary staircase and is attached to the landing. Temporary staircase structure as described.

Images