Boarding facility mechanism

Abstract

To provide a boarding facility mechanism using an overhang boarding facility for performing work while overhanging from a boarding facility body, which can be removed at a necessary position.SOLUTION: In a boarding facility main body mechanism provided with a boarding facility main body 10 and an overhang boarding facility 20 used for boarding of workers that can be suspended by heavy equipment such as a crane 106 when constructing or removing a temporary pier 101, the boarding facility main body 10 has a bottom surface 11 having a width from a first base end part 13 at the front in the width direction to a second base end part 14 at the rear side in the width direction and has a depth of a predetermined length in the longitudinal direction, and the overhang boarding facility 20 has a hooking part 30 capable of being hooked to a first base end part 13 of the boarding facility main body 10. Since the overhang boarding facility 20 can be attached to and detached from the boarding facility main body 10, a bottom surface 25 of the overhang boarding facility 20 can overhang forward in the width direction from the bottom surface 11 of the boarding facility main body 10.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a boarding equipment mechanism used for constructing a temporary trestle, which is detachably provided with a projecting boarding equipment.

Background Art

[0002] Conventionally, a temporary trestle has been assembled as temporary equipment for constructing a road or the like in a mountainous area or on a slope. When constructing a temporary bridge, as described in Patent Document 1 and Patent Document 2, each stage is constructed using a boarding equipment main body.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] When constructing a temporary trestle, it is necessary to first drive a support column further ahead from an existing stage, mount the boarding equipment main body on the support column, and join a receiving girder, diagonal members, etc. In this work, a boarding equipment main body having a scaffold with a length spanning between a plurality of support columns may be used, but when work on the back side of the support column from the boarding equipment main body is required, the work for the worker is very difficult. Also, there is a risk of falling and it is dangerous. On the other hand, the scenes for working by projecting vary greatly from site to site, and it has been difficult to pre-install on the boarding equipment main body. Therefore, equipment that can work by projecting from the boarding equipment main body has been demanded, and equipment that can be removed at necessary locations has been demanded.

[0005] Therefore, an object of the present invention is to provide a boarding equipment mechanism using a projecting boarding equipment for working by projecting from a boarding equipment main body, which can be removed at necessary locations.

Means for Solving the Problem

[0006] The present invention is a boarding equipment mechanism including a boarding equipment main body used for boarding of workers that can be lifted by a heavy machine such as a crane during the construction or removal of a temporary bridge, and a projecting boarding equipment. The boarding equipment main body has a bottom surface with a width from a first base end portion in the front in the width direction to a second base end portion in the rear in the width direction, and a depth with a predetermined length in the longitudinal direction. The projecting boarding equipment has a latching portion that can be latched to the first base end portion of the boarding equipment main body. By making the projecting boarding equipment detachable from the boarding equipment main body, the bottom surface of the projecting boarding equipment can be projected forward in the width direction from the bottom surface of the boarding equipment main body.

[0007] Moreover, it is preferable to have an open portion through which workers can pass between the boarding equipment main body and the projecting boarding equipment.

[0008] Moreover, the latching portion of the projecting boarding equipment is a protruding member having an open bottom and a latching space directed in the vertical direction. It is preferable to insert and latch the side wall portion of the first base end portion of the boarding equipment main body into the latching space.

[0009] Moreover, the latching portion has a first latching portion for latching to the first base end portion, and a second latching portion for latching to a front safety fence provided above the first base end portion. The second latching portion is located rearward in the width direction than the first latching portion. The first base end portion of the boarding equipment main body preferably consists of two side wall portions on both sides and an H-shaped steel having a second bottom surface between the side wall portions.

Effect of the Invention

[0010] According to the invention described in claim 1, when constructing a temporary bridge, especially when constructing and removing a newly installed stage, if it is necessary to set up columns and install components such as receiving girders on the other side, in some cases, it may be carried out using boarding equipment for hoisting with a crane. However, by detachably arranging the overhanging boarding equipment, when workers are working around the columns, they can work safely, and it is also possible to appropriately install the overhanging boarding equipment at locations extending from the boarding equipment main body, such as places where there are columns, to carry out work. Furthermore, it is also possible to contribute to shortening the construction time of the stage.

[0011] According to the invention described in claim 2, an open part is installed between the boarding equipment main body and the overhanging boarding equipment, so that workers do not have to cross over components such as beams to move back and forth between the boarding equipment main body and the overhanging boarding equipment. According to this, not only will the work site become inefficient when crossing over beams and the like, but it is also possible to prevent dangers such as slipping and falling when crossing over.

[0012] According to the invention described in claim 3, by having a latching space that is open at the bottom and extends in the vertical direction, when the overhanging boarding equipment is pushed down from above, it can slide and be inserted into the side wall portion of the first base end portion, making it easy to position. Also, the side wall portion of the first base end portion can be provided with holding means for maintaining the connection with the column, and by using such a side wall portion, the overhanging boarding equipment can be latched, enabling holding and latching with holding force.

[0013] According to the invention described in claim 4, it has two types of latching portions up and down, and since the upper latching portion is located at the rear in the width direction, when a worker gets on the overhanging boarding equipment, a force is applied to the first base end portion on the lower boarding equipment main body. By using high-rigidity H-shaped steel for this first base end portion, it is possible to stably latch the overhanging boarding equipment.

Brief Description of the Drawings

[0014]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Embodiments for Carrying Out the Invention

[0015] An example of an embodiment of the present invention will be described with reference to the drawings. In this description, "front" refers to the front side in FIG. 3, and "rear" refers to the opposite side. Since the boarding equipment main body may be positioned on the advancing direction side or the opposite side of the support column during work, the front and rear in this description are not related to the longitudinal direction shown in FIG. 1.

[0016] The present invention is a boarding equipment mechanism 1 including a cantilever boarding equipment 20 that is latched to and used with a boarding equipment main body 10 used when constructing a temporary trestle 101. The cantilever boarding equipment is particularly useful in the work of the support piles 102 of the temporary trestle 101.

[0017] When constructing the temporary trestle 101, it is often carried out by sequentially constructing the new stage B from the existing stage A. The support piles 102 are driven, a cross beam 103 in the transverse direction (width direction) is placed between the support piles 102, and a main beam 104 in the longitudinal direction (advancing direction) is spanned from the existing part to the cross beam 103. Then, a bracing member 105 is spanned for reinforcement to complete the new existing stage A, and successively, new support piles 102 are driven forward to complete and construct the new stage.

[0018] When constructing such a temporary trestle 101, a plurality of support piles 102 arranged transversely at a predetermined interval are driven from the existing stage A, and a cross beam 103 is installed between each support pile 102. Since there is a predetermined interval from the existing stage A, the operator uses the crane 106 on the existing stage A to lift the boarding equipment 110, and the operator boards the boarding equipment 20 to perform the boarding operation on each support pile 102.

[0019] Such boarding operations include attaching the attachment 107 to the support pile 102 and fixing the cross beam 103, etc., but are carried out in front of and behind the support pile 102 in the advancing direction and on the left and right sides in the width direction of the support pile 102. Sometimes the operator leans out from the boarding equipment 110 to perform the operation, which is dangerous. Therefore, a boarding equipment mechanism with a cantilever boarding equipment has been demanded.

[0020] The boarding equipment mechanism 1 shown in FIG. 3 will be described. The boarding equipment mechanism 1 consists of a boarding equipment main body 10 and a cantilever boarding equipment 20, and the cantilever boarding equipment 20 can be moved and hooked to appropriate necessary positions of the boarding equipment main body 10. The boarding equipment main body 10 shown in FIG. 3 shows a shortened depth length in the longitudinal direction (the length from the front left to the back right in FIG. 3) due to the relationship of the drawing. The depth direction of the boarding equipment main body 10 is about 10 m, as shown in FIG. 4(a), but in this description, the one with the shortened depth direction as shown in FIGS. 3 and 4(b) will be used for explanation. The width direction refers to the length between the first base end portion 13 and the second base end portion 14 described later, and is the same direction as the front-back direction.

[0021] The boarding equipment main body 10 will be described. As shown in FIGS. 4 and 5, the boarding equipment 10 has a first bottom surface 11 and a second bottom surface 13a within the first base end portion 13, and is a box-shaped object in which the bottom surfaces 11 and 13a are surrounded by a safety fence 15. An operator boards it, and it is lifted by a crane via the crane locking portions 12 and 12 arranged on the safety fence 15 and moved to a working position for the operator to perform work.

[0022] The boarding equipment main body 10 has a first base end portion 13 that is the front base end in the width direction of the bottom surfaces 11 and 13a, and a second base end portion 14 that is the rear base end in the width direction. The first base end portion 13 is made of an H-shaped steel located on the front side in the width direction of the first bottom surface 11 along the longitudinal direction, and serves as the second base end portion 14 that stands up on the rear side in the width direction. The first base end portion 13 has a second bottom surface 13a that can also be used as a working surface along the longitudinal direction and the depth direction (width direction), and side wall portions 13b and 13b that stand up on both sides of the second bottom portion 13a are formed. The side wall portions 13b and 13b made of H-shaped steel have higher strength than the first bottom surface 11.

[0023] The side wall portions 13b and 13b of the first base end portion 13 are arranged flush with the front surface side of the column of the front safety fence 15a for the front side wall portion 13b, and have a predetermined height direction length. That is, the upper end of the side wall portion 13b is located higher than the upper end of the second base end portion 14, and the lower end of the side wall portion 13b is located lower than the bottom surfaces 11 and 13a. Due to having such vertical height and using H-shaped steel, the first base end portion 13 is configured to be able to withstand a considerable thickness and impact. On the one hand, due to the high-strength and heavy first base end portion 13 made of H-shaped steel, the bottom surfaces 11 and 13a are made to be in a cantilever state from such a side, and by connecting and holding with a support pile and latching the overhanging boarding equipment 20 to the first base end portion 13 as described later, stable holding and latching are made possible.

[0024] The boarding equipment main body 10 is formed with a safety fence 15 that shields the surroundings on both the front and rear sides. The safety fence 15 is composed of a front safety fence 15a arranged above it along the first base end portion 13, a rear safety fence 15b arranged above it along the second side surface portion 14, and two side safety fences 15c and 15c that serve as side surfaces.

[0025] The safety fences 15a, 15b, and 15c are arranged with columns extending vertically at appropriate intervals and crossbars extending horizontally. The rear safety fence 15b and the side safety fence 15c have two upper and lower stages between the upper crossbar and the central crossbar. However, the front safety fence 15a above the first base end portion 13 does not have a central crossbar, but only a column and an upper crossbar, and central open portions 16, 16, 16 are formed.

[0026] The first base end portion 13 of the boarding facility main body 10 of the present embodiment serves as a support member for performing work in the vicinity of the support pile 40. As shown in FIG. 6, the support pile 40 is formed with a pocket-shaped held portion 41 protruding from the outer surface of the support pile 40 at an appropriate location. At an appropriate location on the side wall portion 13b, a holding member 42 having a groove-shaped holding groove opening downward is arranged. The holding member 42 protrudes outward from near the upper edge of the side wall portion 13b and has a hanging portion downward. The outer wall of the held portion 41 of the support pile 40 is inserted into the holding groove between the hanging portion and the side wall portion 13b. In this state, the holding member 42 and the side wall portion 13b are clamped using a fixture such as a bolt, so that the boarding facility main body 10 can be held on the support pile 40.

[0027] Next, the overhanging boarding facility 20 will be described. As shown in FIGS. 7 and 8, the overhanging boarding facility 20 is a lattice-shaped rectangular parallelepiped having scaffold columns 22, 22 on both sides in the front and rear, and horizontal scaffold crossbars 23, 23 spanning the scaffold columns 22, 22. Central crossbars 23a are arranged between the upper and lower scaffold crossbars 23, 23 on the front surface and the side surfaces other than the upper surface and the rear surface, but the rear surface is an open portion 24. A bottom plate made of a steel plate is supported on the bottom surface 25.

[0028] In addition, the overhanging boarding facility 20 has crane locking portions 26, 26 each consisting of eyebolts on both sides of the upper scaffold bars 23, 23, enabling it to be suspended by a crane. Further, latching portions 30, 31 for latching onto the boarding facility main body are formed to protrude rearward from the overhanging boarding facility 20. The latching portions include first latching portions 30, 30 located below and latching onto the first base end portion 13 of the boarding facility main body 10, and second latching portions 31, 31 located above and latching onto the upper bar of the front safety fence 15a of the boarding facility main body.

[0029] The substantially L-shaped first latching portions 30, 30 having a notched hypotenuse have a main body portion 30a and a hanging piece 30b, are formed to hang down separated from the overhanging boarding facility 20, and have a latching space 30c. The substantially L-shaped second latching pieces 31, 31 of an extended thin plate have a main body portion 31a extending in the horizontal direction (front-rear direction) and a hanging piece 31b hanging down from near the tip of the main body portion 31a. The hanging piece 31b forms a latching space 31c depending on the distance from the rear surface of the overhanging boarding facility 20 to the starting point where it hangs down from the main body portion 31a.

[0030] The latching portions 30, 31 are such that the second latching portion 31 is located more rearward in the front-rear direction than the first latching portion 30, and the width of the latching space 31c of the second latching portion 31 is also wider than that of the latching space 30c of the first latching portion 30. Since the latching space is a vertical space open at the bottom, it is possible to latch the first base end portion 13 and the front safety fence 15a from above.

[0031] Next, a method for hanging the overhanging boarding facility 20 on the boarding facility main body 10 will be described. First, along the outer side wall portion 13b of the first base end portion 13 of the boarding facility main body 10, lower it downward along the frame at the rear of the overhanging boarding facility 20 so that the side wall portion 13b of the first base end portion 13 enters the hanging space 30c of the first hanging portion 30 of the overhanging boarding facility 20. At this time, the hanging space 31c of the second hanging portion 31 of the overhanging boarding facility 20 is located above the boarding facility main body 10. From this state, by moving the overhanging boarding facility 20 downward, the second hanging portion 31 is hooked and stopped on the upper crossbar of the front safety fence 15a of the boarding facility main body 10. The overhanging boarding facility 20 in the hooked state is supported in a cantilever manner by the boarding facility main body 10 with two upper and lower hanging portions 30 and 31. It is preferable to further support the upper crossbars with an auxiliary locking tool (not shown) made of a clamp. Furthermore, since the hanging space 31c of the second hanging portion 31 is wider than the hanging space 30c of the first hanging portion 30, it is easier to guide and position when attempting to hang. Note that the overhanging boarding facility 20 is made easy to move by using the crane locking portions 26 and 26.

[0032] In addition, by moving the overhanging boarding facility 20 upward from the boarding facility main body 10, its hooked state can be released. In addition, if the upward movement is slightly stopped and the upper crossbar of the boarding facility main body 10 is slid, it becomes possible to slide laterally.

[0033] The boarding facility main body 10 mounted so as to span between the columns of the temporary crosstie stage hangs the overhanging boarding facility 20 so as to be arranged between the columns to perform work, or releases the hooked state and can also hook the overhanging boarding facility 20 between other columns, making it possible to easily join the members between the columns, contributing to ensuring the safety of the workers and shortening the construction time of the new stage.

Explanation of Reference Numerals

[0034] 1... Boarding facility mechanism, 10…Ride equipment main body, 11…First bottom surface, 12…Crane locking part, 13…First base end part, 13a…Second bottom surface, 13b…Side wall part, 14…Second base end part, 15…Safety fence, 15a…Front safety fence, 15b…Rear safety fence, 15c…Side safety fence, 16…Open part 20…Overhanging ride equipment, 22…Scaffold column, 23…Scaffold crossbar, 24…Open part, 25…Bottom surface, 26…Crane locking part 30…First hooking part, 30a…Main body part, 30b…Drooping piece, 30c…Hooking space, 31…Second hooking part, 31a…Main body part, 31b…Drooping piece, 31c…Hooking space 40…Support pile, 41…Part to be held, 42…Holding member 101…Erection trestle, 102…Support pile, 103…Receiving girder, 104…Main girder, 105…Brace member, 106…Crane, 107…Accessory, 110…Ride equipment main body, A…Existing stage, B…Newly constructed stage

Claims

1. A boarding equipment mechanism comprising a boarding equipment main body and a projecting boarding equipment, which is used for boarding workers who can be suspended by a heavy machine such as a crane during the construction or removal of a temporary bridge. The bottom surface of the boarding equipment main body has a width from a first base end portion in the front in the width direction to a second base end portion in the rear in the width direction, and has a depth of a predetermined length in the longitudinal direction. The projecting boarding equipment has a latching portion that can be latched to the first base end portion of the boarding equipment main body. The boarding equipment mechanism is characterized in that by making the projecting boarding equipment detachable from the boarding equipment main body, the bottom surface of the projecting boarding equipment can be projected forward in the width direction from the bottom surface of the boarding equipment main body.

2. The boarding equipment mechanism according to claim 1, characterized in that there is an open portion through which a worker can pass between the boarding equipment main body and the projecting boarding equipment.

3. The latching portion of the projecting boarding equipment is a protruding member having an open bottom and a latching space extending in the vertical direction, and the side wall portion of the first base end portion of the boarding equipment main body is inserted into the latching space for latching. The boarding equipment mechanism according to claim 2, characterized by this.

4. The latching portion has a first latching portion for latching to the first base end portion and a second latching portion for latching to a front safety fence provided above the first base end portion, and the second latching portion is located behind the first latching portion in the width direction. The first base end portion of the boarding equipment main body is composed of two side wall portions on both sides and an H-shaped steel having a second bottom surface between the side wall portions. The boarding equipment mechanism according to claim 3, characterized by this.

Images