JP5642209B2 - Temporary handrail mounting jig - Google Patents

Description

  Embodiments of the present invention relate to a temporary handrail attachment jig for attaching a temporary handrail to a truss of a passenger conveyor.

  When installing a passenger conveyor, for example, an escalator, a truss to which a step or the like is attached is installed from the lower floor of the building to the upper floor, and then an installation work such as a railing is performed. When this truss was installed, it was often open to the floor of the lower floor on the left and right sides of the truss, and the work on the truss was accompanied by dangers such as an operator's fall accident. .

  For this reason, until now, until the balustrade is installed, a plurality of vertical struts are installed on the slanted beams arranged on the left and right in the width direction of the slanted intermediate truss at appropriate intervals from top to bottom. To alert the worker that he was working at a high place.

  However, such vertical struts are simple enough to bridge a rope, and even if the effect of alerting can be expected, it does not have sufficient strength to support this when an operator falls. Does not function as a fall prevention for workers.

  In addition, there is a known work scaffold standing on the escalator step. The scaffold is for the scaffold so that the support column is placed on the step and parallel to the inclination of the step. A connecting arm also serving as a handrail is arranged.

  However, since the above-mentioned work scaffold is only placed on the step, it is inferior in stability, and is not perfect from the viewpoint of worker safety.

JP 2009-234754 A JP 2003-26386 A

  The problem to be solved by the present invention is to provide a temporary handrail attachment jig for attaching a temporary handrail capable of sufficiently ensuring the safety of the operator to the truss of the passenger conveyor when the passenger conveyor is installed.

  A temporary handrail mounting jig in a passenger conveyor according to an embodiment of the present invention is a temporary handrail mounting jig that is mounted on a passenger conveyor provided with a truss and a step for circulation driving, and the temporary handrail mounting jig is mounted on a truss. A truss mounting portion for mounting and a column mounting portion for mounting a column standing upright with respect to the truss.

It is the schematic which looked at the whole escalator truss at the time of installation which shows the attachment position of the temporary handrail attachment jig which concerns on Example 1 of this invention from the side. It is the schematic which looked at the state which attached the temporary handrail attachment jig which concerns on Example 1 of this invention to the escalator truss at the time of installation from the step side. It is a side view of the temporary handrail attachment jig which concerns on Example 1 of this invention. It is a front view of the temporary handrail mounting jig which concerns on Example 1 of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is an enlarged view which shows the state which attached the temporary handrail attachment jig concerning Example 1 of this invention to the truss, Comprising: (a) is a front view, (b) is a side view in the figure.

  The temporary handrail attachment jig in the passenger conveyor which concerns on embodiment of this invention is a jig | tool which can comprise a temporary handrail using the construction temporary material at the time of installation of an escalator as an example.

  As shown in FIGS. 1 and 2, the temporary handrail mounting jig 10 according to the present embodiment constitutes a part of an escalator and is provided with a pair of L-shapes disposed at the upper end of a truss T provided with a step F. Are arranged at an appropriate interval in the angle L. In the present embodiment, the temporary handrail mounting jig 10 is arranged at five positions at the angle L in the inclined portion of the truss T.

  As shown in FIGS. 3 and 4, the temporary handrail mounting jig 10 has a truss mounting portion 20 for mounting on a truss T fixed to a base 11 having an L-shaped cross section, and an upper side with respect to the truss T. And a column mounting part 30 for mounting a column standing upright.

  As shown in FIG. 3, the truss mounting portion 20 includes a horizontal gripping portion 21 that grips the horizontal plate portion La of the angle L, and a vertical gripping portion 25 that grips the vertical plate portion Lb of the angle L. Yes.

  The horizontal gripping portion 21 is fixed to the upper surface of the horizontal support plate 11a in the base material 11, and is fixed to the fixing portion 22 that supports the horizontal gripping portion 21 by a bolt member 23 fixed to the horizontal gripping portion 21. It is configured to be able to advance and retreat in the direction indicated by p. That is, the bolt member 23 is attached in the same direction as the advancing / retreating direction of the horizontal gripping portion 21, the shaft portion 23 a is fixed to the horizontal gripping portion 21, and the bolt portion 23 b is exposed on the left side in FIG. 3. And the nut 24 is engage | inserted by the said bolt part 23b, and if the horizontal holding part 21 rotates in the direction which tightens the nut 24 with respect to the bolt part 23b, the horizontal holding part 21 will shorten. Conversely, when the nut 24 is rotated relative to the bolt part 23b in the direction of loosening, the horizontal gripping part 21 extends. Further, a horizontal hook portion 21a is provided at the tip which is the free end of the horizontal gripping portion 21, and the free end which is the horizontal end of the horizontal plate portion La at the angle L as shown in FIG. La1 can be gripped.

  The vertical grip portion 25 includes a triangular support portion 25a fixed between a lower surface of the horizontal support plate 11a and a vertical wall surface of the vertical support plate 11b in the base material 11, and a hanging portion extending below the support portion 25a. It is comprised from the vertical hook part 25c provided in the front-end | tip which is a free end of 25b. The triangular support portion 25a supports the horizontal support plate 11a and the vertical support plate 11b, and functions to prevent the base material 11 from being deformed even when a strong load is applied to the base material 11. Further, a reinforcing plate member 11 c is provided as a reinforcement of the base material 11. The vertical hook portion 25c grips a free end Lb1, which is the lower end of the vertical plate portion Lb having an angle L, as shown in FIG.

  By configuring the truss mounting portion 20 as described above, the vertical hook portion 25c of the vertical grip portion 25 is hooked to the free end Lb1 of the vertical plate portion Lb of the angle L, and the horizontal hook portion 21a of the horizontal grip portion 21 is angled. By hooking to the free end La1 of the horizontal portion La of L, the truss attachment portion 20 can be attached to the angle L. Further, since the length of the horizontal gripping portion 21 can be adjusted, the truss mounting portion 20 can be easily attached to and detached from the horizontal portion La of the angle L. Moreover, by tightening the nut 24, the truss mounting portion 20 is It can be firmly fixed to the angle L.

  Note that the vertical gripping portion 25 may have a structure in which the length of the vertical gripping portion can be adjusted by adopting a structure similar to that of the horizontal gripping portion 21.

  The column attachment portion 30 is a fitting cylinder portion made of a cylindrical body on the upper surface of the horizontal support plate 11a in the base material 11, that is, the horizontal support plate 11a extending in the direction opposite to the horizontal plate portion La of the angle L. 31 is erected. The fitting cylinder part 31 is for fitting a column A, which is a strong single tube used for supporting a scaffold in a temporary construction material as an example.

The fitting cylinder portion 31 has an outer diameter substantially equal to the inner diameter of the support column A, and a recess 32 is formed on the peripheral surface of the fitting cylinder portion 31 except for a part of the peripheral surface. The concave portion 32 includes a wide concave portion 32a formed at a fixed distance from the top portion of the fitting cylinder portion 31, and a narrow concave portion 32b formed continuously from the lower portion of the wide concave portion 32a and not reaching the top portion. Composed. On the other hand, the column A is provided with a pin A1 on its inner peripheral surface, and the pin A1 of the column A enters the wide recess 32a when the column A is fitted into the fitting cylinder part 31, and the fitting cylinder part. When the support column A is rotated with respect to 31, the pin A1 that has entered the wide recess 32a is transferred to the narrow recess 32b, and the support column A is configured not to escape upward with respect to the fitting tube portion 31. In this embodiment, the support column A is configured to stand upright in the direction orthogonal to the traveling direction of the step F, that is, in the direction orthogonal to the angle L of the truss T. You may comprise so that the support | pillar which stood in the perpendicular direction with respect to the base material 11, and was fitted in the fitting cylinder part may stand upright.

  The temporary handrail attachment jig 10 having the above-described configuration is shown in FIG. 2 when attached to both of a pair of L-shaped angles L disposed on the upper end of the truss T using the truss attachment portion 20. It becomes a state. Then, as shown in FIG. 1, the temporary handrail mounting jig 10 is provided at five locations on the angle L of the truss T, and the fitting tube portion 31 of each temporary handrail mounting jig 10 is used to provide five pieces. The connecting arm B1 used as a handrail for the single pipe or the scaffold is used as an example so as to be parallel to the inclination of the step F at an intermediate height position of the supporting column A by fitting and fixing the supporting column A. If it arrange | positions as a middle rail and arrange | positions connection arm B2 similarly as a temporary handrail on the upper part of the support | pillar A, the state shown in FIG. 1 can be constructed | assembled.

  By setting the temporary handrail mounting jig 10 to the truss T as described above, the temporary handrail mounting jig 10 can be used in common regardless of whether the balustrade is a glass panel type or a metal panel type. For example, a single hand pipe used for a temporary construction material is attached to the temporary handrail mounting jig 10 as a column A, and the connection arms B1 and B2 are attached to the column A to form a temporary handrail. Further, the temporary handrail mounting jig 10 includes a horizontal gripping portion 21 that can move forward and backward, and the horizontal gripping portion 21 has a horizontal hook portion 21a that grips the free end La1 of the horizontal plate portion of the truss T. Since the length of the portion hooked to the truss T can be adjusted, the temporary handrail mounting jig 10 can be easily attached to and detached from the truss T. In addition, since the length of the horizontal gripping portion 21 can be adjusted, the temporary handrail mounting jig 10 can be reliably fixed to the truss T. The handrail is also fixed in a stable state, and can be sufficiently supported even when a load such as the weight of the operator is applied, improving safety. Further, since the nut 24 for adjusting the length of the horizontal gripping portion 21a is provided on the upper part of the temporary handrail mounting jig 10, it is easy to get on the step F and perform the construction work of the temporary handrail.

  In addition, although the present Example demonstrated the escalator as a passenger conveyor, it is applicable also to a moving sidewalk.

  Moreover, although several embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

A ………… Post A1 ………… Staff pin B1 ………… Connecting arm as middle rail B2 ………… Connecting arm as temporary handrail T ………… Truss F ………… Step L ………… L-shaped angle arranged at the top of the truss La ......... Horizontal plate of the angle La1 ... Free end of the horizontal plate of the angle Lb ......... Vertical plate of the angle Lb1 ... of the vertical plate of the angle Free end 10... Temporary handrail attachment jig 11... Base material 11 a. Base material horizontal support plate 11 b. Base material vertical support plate 11 c. Reinforcement plate material 20. ... Horizontal gripping part of truss mounting part 21a ... Horizontal hook part of horizontal gripping part 22 ... ... Fixing part that supports the horizontal gripping part 23 ... ... Bolt material of horizontal gripping part 23a ... Shaft part of bolt material 23b ... ... Bolt material bolt 24 ......... Nut 25 ......... Truss Attached vertical gripping portion 25a ...... Triangular support portion 25b …… Suspended portion 25c …… Vertical hook portion 30 ……… Staff mounting portion 31 ………… Fitting cylinder portion 32 ……… The circumference of the fitting cylinder portion Surface recess 32a ...... Wide recess in fitting tube 32b ...... Narrow recess in fitting tube

Claims (3)

A temporary handrail mounting jig to be attached to a passenger conveyor equipped with a truss and a step for circulating driving,
The temporary handrail mounting jig includes a truss mounting portion for mounting on a truss, and a column mounting portion for mounting a column standing upright with respect to the truss ,
The truss for attaching the truss attachment part has a horizontal plate part extending inward of the truss,
The support mounting portion includes a horizontal support plate extending in a direction opposite to the horizontal plate portion constituting the truss, and a fitting tube portion for fitting a support provided on the upper surface of the horizontal support plate,
A concave portion is formed on the peripheral surface of the fitting cylinder portion, and the concave portion is continuous with a wide concave portion formed at a fixed distance from the top of the fitting cylindrical portion and a lower portion of the wide concave portion. Formed in a horizontal direction and a narrow recess that does not reach the top,
The support is provided with a pin on its inner peripheral surface, and the pin enters the wide recess when the support is fitted into the fitting cylinder, and turns into a wide recess when the support is turned relative to the fitting cylinder. A temporary handrail mounting jig characterized in that the pin that has entered is configured to shift to a narrow concave portion so that the support column does not come out upward with respect to the fitting tube portion . The truss mounting portion includes a horizontal gripping portion configured to be movable forward and backward,
The temporary handrail mounting jig according to claim 1, wherein the horizontal gripping portion has a horizontal hook portion for gripping a free end of a horizontal plate portion constituting the truss . The truss for attaching the truss attachment part has a vertical plate part extending to the truss lower side,
The truss mounting portion has a vertical gripping portion for gripping a vertical plate portion;
The temporary handrail attachment jig according to claim 2, wherein the vertical gripping portion includes a vertical hook portion that grips a free end of the vertical gripping portion constituting the truss .

Images