JP7365680B2 - slope device - Google Patents

Description

The present invention relates to a slope device that is temporarily installed, for example, at a step at a construction site, and particularly to a slope device that can adjust the degree of inclination according to the height difference of the step.

As a slope device installed on a step at a construction site, etc., for example, a base plate placed on the installation surface, and one end supported by a support shaft parallel to the base plate and rotated around the support shaft. A slope plate that is tilted with respect to the base plate, and a height that supports the end of the slope plate on the opposite side from the side that is pivotally supported on the support shaft and that allows the height of the end from the base plate to be adjusted. and an adjustment device, the height adjustment device has a support stand erected from the base plate, a screw hole with a thread groove formed on the inner peripheral surface, and the screw hole is perpendicular to the base plate. a female screw member supported by a support stand at a higher position than the base plate, and a shaft portion with threads formed on the outer peripheral surface, and the shaft portion is inserted into the screw hole. A known mechanism is known in which the base plate is raised and lowered in a direction perpendicular to the base plate by screwing the threads into or out of the thread groove, and is provided with a male threaded member on which the end of the slope plate is placed at the upper end. (See Patent Document 1).

Utility model registration No. 3154296

By the way, for example, the location and height difference of a stepped part at a construction site change from time to time as the construction progresses, and the slope device may be moved or adjusted depending on the location or height difference (in other words, the slope's inclination angle (in other words, the top end of the slope) Work such as adjusting the height of the roof is often performed. In this case, for example, in the slope device of Patent Document 1, each time the slope device is moved or the inclination angle is adjusted, a hand or a tool such as a wrench is inserted into the notch in the support wall of the support base to tighten the externally threaded member. By rotating the head and moving the threads of the shaft of the male threaded member forward and backward with respect to the thread groove of the female threaded member, the male threaded member is raised and lowered, and the end of the shaft of the male threaded member that protrudes upward from the female threaded member (shaft It is necessary to change the height of the upper end of the slope plate placed on the shaft end by raising and lowering the height of the shaft end. Furthermore, in order to stably maintain the height of the male threaded member at the adjusted height, it is necessary to tighten the nut from the shaft end side until it abuts the upper end of the female threaded member after adjusting the height of the male threaded member. be. For this reason, there is a problem in that it takes a lot of effort and time every time the slope inclination angle (the height of the upper end of the slope) is adjusted.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a slope device that can reduce the effort and time required to adjust the inclination angle of a slope.

In order to solve the above problem, the invention according to claim 1 includes a base part, a slope part whose one end is rotatably connected to the base part and can be tilted, and a slope part of the slope part. A long engagement leg and a short engagement leg having mutually different lengths, the proximal end of which is rotatably attached to the other end, and the degree of rotation between the long engagement leg and the short engagement leg. a plurality of engagement recesses arranged in the base part such that the positions in which the distal ends of the long engagement legs and the short engagement legs are fitted change depending on the length of the engagement recesses; The lower ends of the pair of short engaging legs are connected to each other by a connecting shaft, and the leg portion of the long engaging leg is connected to the connecting shaft of the short engaging leg. The slope device is also located on the one end side of the slope portion .

The invention according to claim 2 is characterized in that, in the slope device according to claim 1, at least one of the long engagement leg and the short engagement leg fits into the engagement recess. .

The invention according to claim 3 is the slope device according to claim 1 or 2, in which the slope portion and the base portion are installed adjacent to the one end of the slope portion. It is characterized in that a lower approach, which forms an inclined surface between the base part and the base part, is attached to the base part.

The invention according to claim 4 is the slope device according to claims 1 to 3, in which a stepped portion extends and overhangs from the other end of the slope portion and on which the slope portion and the base portion are installed. It is characterized in that an upper approach spanned between the upper stage surface of the vehicle and the upper stage of the vehicle is attached to the slope portion.

According to the invention described in claim 1, the degree of inclination of the slope portion (the slope portion The height of the upper end of the slope can be changed, making it possible to reduce the effort and time required to adjust the inclination angle of the slope.

According to the second aspect of the invention, at least one of the two or more engaging legs having different lengths is selectively fitted into and engaged with the engaging recess, thereby reducing the slope of the slope portion. The range in which the degree can be changed can be increased, and the adaptable range of the slope device can be expanded to improve convenience.

According to the invention set forth in claim 3, for example, since a mechanism is provided for rotatably connecting the slope portion to the base portion, the lower end portion of the passage surface of the slope portion and the lower step surface of the step portion are connected. Even if there is a step between the two, the lower approach allows smooth communication between the passage surface of the slope section and the lower step surface of the step section to form a good passageway.

According to the invention set forth in claim 4, even if a gap occurs between the upper end portion of the passage surface of the slope portion and the upper step surface of the stepped portion, the upper approach covers the gap and provides a good passage path. It becomes possible to form.

FIG. 1 is a side view showing a slope device according to an embodiment of the invention. 2 is a plan view of the slope device shown in FIG. 1. FIG. FIG. 2 is a rear view of the slope device shown in FIG. 1; FIG. 2 is a plan view of the base portion of the slope device shown in FIG. 1. FIG. FIG. 2 is a side view of the slope device shown in FIG. 1 illustrating a state in which the engagement convex portion of the elongated engagement leg is fitted into and engaged with the engagement concave portion at the end on the upper step side of the step. FIG. 2 is a side view of the slope device shown in FIG. 1 illustrating a state in which the engagement protrusion of the long engagement leg is fitted into and engaged with the engagement recess at the lower end of the step. FIG. 2 is a side view of the slope device shown in FIG. 1 illustrating a state in which the engagement convex portion of the short engagement leg is fitted into and engaged with the engagement recess at the end on the upper step side of the step. FIG. 2 is a side view of the slope device shown in FIG. 1 illustrating a state in which the engagement protrusion of the short engagement leg is fitted into and engaged with the engagement recess on the lower side of the step. FIG. 2 is a side view of the slope device shown in FIG. 1 illustrating a state in which a slope portion and a base portion are closed together.

The present invention will be described below based on the illustrated embodiments. In the following description, the front-rear direction, left-right direction, and up-down direction are defined according to the arrow directions shown in each figure. Further, the front side in the front-rear direction is called the lower step side, and the rear side is called the upper step side.

1 to 4 are diagrams showing a slope device 1 according to an embodiment of the present invention. This slope device 1 is installed at a step and functions as an inclined passage spanning between a lower part and an upper part of the step.

The slope device 1 according to this embodiment includes a base portion 2, and a slope portion 3 whose one end (lower end portion 3d) is rotatably connected to the base portion 2 in a vertical direction and is tiltable. , the inclination adjustment part 4 includes a long engagement leg 41 and a short engagement leg 42 whose proximal ends are rotatably attached to the other end (upper end 3c) of the slope part 3 in a vertical direction; A plurality of long engaging legs 41 and short engaging legs 42 are horizontally arranged on the base part 2 so that the positions where the tips of the long engaging legs 41 and the short engaging legs 42 fit change depending on the degree of rotation of the long engaging legs 41 and the short engaging legs 42. It has an engagement recess 43. Regarding the slope portion 3, when the slope device 1 is installed on the step, the end on the upper step side of the step is called an upper end portion 3c, and the end on the lower step side of the step is called a lower end portion 3d.

In this embodiment, an upper approach 5 is attached to the upper end 3c of the slope portion 3, and a lower approach 6 that is continuous with the lower end 3d of the slope portion 3 is attached. The upper approach 5 is formed to have the same width as the horizontal width of the slope part 3, is attached to the upper end part 3c of the slope part 3, and is provided as a structure that extends and overhangs toward the upper step side of the step. The lower approach 6 is formed to have the same width as the horizontal width of the slope part 3, is attached to the base part 2 adjacent to the lower end 3d of the slope part 3, and is attached to the passage surface 3a of the slope part 3. It is provided as an inclined surface between the lower end portion and the lower step surface of the stepped portion. With the slope device 1 installed on the step, the upper approach 5 is stacked on the upper surface of the step, and the lower approach 6 is stacked on the lower end of the passage surface 3a of the slope section 3 and the lower surface of the step. intervene between As a result, an inclined surface is formed by the upper approach 5, the slope portion 3, and the lower approach 6 between the upper step surface and the lower step surface of the stepped portion.

Note that the upper approach 5 and the lower approach 6 are not limited to the embodiments shown in the figures, and furthermore, they are not essential configurations in the present invention. For example, if the gap between the upper end 3c of the slope part 3 and the upper surface of the stepped part does not become an obstacle to passage when the slope device 1 is installed, the upper approach 5 may not be provided. good. In addition, there is a step on the upper end 3c side of the slope section 3 with respect to the lower section where the slope device 1 is installed, and a step also exists on the lower end 3d side of the slope section 3, and there is a passage between these steps. When the slope section 3 is spanned as a bridge, the lower approach 6 may not be provided.

The base part 2 is installed at the lower part of the stepped part, supports the slope part 3, and is provided with an inclination adjustment part 4. The base portion 2 is formed into a rectangular frame shape (picture frame shape) in plan view by connecting four frame members. Specifically, a front frame member 2a and a rear frame member 2b are arranged along the left-right direction and spaced apart from each other in the front-rear direction, and a front frame member 2a and a rear frame member 2b are arranged along the front-rear direction and spaced apart from each other in the left-right direction. A pair of left and right side frame members 2c, which are spaced apart and arranged between the left ends of the front frame member 2a and the rear frame member 2b, or between the right ends thereof, form a rectangular frame body in plan view. It is assembled to form a picture frame.

The material of the base portion 2 is not limited to a specific material, and an appropriate material is appropriately selected, for example, taking into consideration the required strength. The base portion 2 is specifically constructed using, for example, a steel material formed in the shape of a square pipe.

Each of the pair of left and right side frame members 2c of the base portion 2 is provided with an engagement recess 43 of the inclination adjusting portion 4 on the upper step side of the step, and a rotation receiving portion 21 on the lower step side of the step.

The engagement recess 43 is for engaging the tips of the long engagement legs 41 and the short engagement legs 42, and by changing the engagement position, the upper end 3c of the slope part 3 is aligned with the base part 2. This is for changing the height and, by extension, the inclination angle of the slope portion 3.

The engagement recesses 43 are formed horizontally at predetermined intervals in each of the pair of left and right side frame members 2c of the base portion 2 along the front-rear direction from a position near the end on the upper step side to the lower step side of the step. A plurality of them are arranged in a row. The plurality of engagement recesses 43 attached to the right side frame member 2c of the base portion 2 and the plurality of engagement recesses 43 attached to the left side frame member 2c are each aligned in the right and left direction. It is formed in the opposite position. In the example shown in the figure, the number of engaging recesses 43 is six on each side, but it may be between two and five, or seven or more.

Each engagement recess 43 includes an engagement protrusion 411 provided at the tip (lower end) of the long engagement leg 41 of the inclination adjustment section 4 and an engagement protrusion provided at the tip (lower end) of the short engagement leg 42. The portion 421 is formed in a size that allows it to be removably fitted.

A portion on the lower step side of the step than the portion where a plurality of engaging recesses 43 arranged in a row are formed is a flat portion 44 in which no recesses are formed.

The rotation receiving part 21 is for connecting the slope part 3 to the base part 2 so as to be rotatable in the vertical direction. The rotation receiving portions 21 are provided as a pair at each of the left and right ends of the front frame member 2a of the base portion 2 and facing each other in the left-right direction. In this embodiment, as the rotation receiving part 21, specifically, plate-shaped members are attached that stand apart from each other in the left-right direction and face each other from the left and right ends of the front frame member 2a of the base part 2. .

The slope portion 3 is supported by the base portion 2 and serves as a passage connecting the upper and lower portions of the stepped portion. The slope portion 3 is formed into a rectangular plate shape having approximately the same size as the base portion 2 in a plan view, and both left and right edge portions are bent toward the lower surface side and inwardly, so that when viewed in cross section in the left and right direction, the slope portion 3 is It is formed in a U-shape. As a result, side walls 3b are formed on the lower surface side of each of the left and right ends of the slope portion 3, and the side walls 3b are connected to the passage surface 3a and extend downward.

The material of the slope portion 3 is not limited to a specific material, and an appropriate material is appropriately selected, for example, taking into consideration the required strength. Specifically, the slope portion 3 is constructed using, for example, a steel plate. In the example shown in the figure, two frame members (including the shaft support part 312 described later) arranged along the longitudinal direction of the rectangle are fixedly attached to the lower surface of the plate-like member constituting the slope part 3. .

In the example shown in the figure, the base portion 2 and the slope portion 3 are formed and arranged such that the direction connecting the upper step side and the lower step side (that is, the front-rear direction) is the longitudinal direction.

The slope portion 3 is provided with a leg support portion 31 on the upper step side of the step, and a rotating portion 32 on the lower step side of the step.

The leg support part 31 is for attaching and supporting the long engagement leg 41 and the short engagement leg 42 to the slope part 3 so as to be rotatable in the vertical direction. As the leg support portion 31, a pair of through holes 311 are formed at positions directly facing each other in the left and right direction near the ends of the side walls 3b at both left and right ends of the slope portion 3 on the upper step side of the step, and at positions directly facing each other in the left and right direction. Two shaft support parts 312 are provided between the lower surface of the slope part 3 at positions facing the through holes 311 in the left-right direction, spaced apart from each other in the left-right direction, and protruding downward to face each other (this embodiment In this case, the portion of the two frame members arranged on the lower surface of the plate-like member constituting the slope portion 3 near the upper end of the step functions as the shaft support portion 312). A through hole is formed in each shaft support portion 312 at a position directly facing the through hole 311 of the side wall 3b in the left-right direction. As the leg support part 31, a rotation shaft 313 extending in the left-right direction is further provided, spanning between the through-hole 311 of the left and right side walls 3b and the through-hole of the shaft support part 312. That is, one rotation shaft 313 is provided on each of the left and right sides.

The rotating portion 32 is for connecting the slope portion 3 to the base portion 2 so as to be rotatable in the vertical direction. The rotating portions 32 are provided as a pair of rotating portions 32 at each of the left and right ends of the lower end of the slope portion 3 and facing each other in the left-right direction. In this embodiment, specifically, as the rotating part 32, plate-like members are attached that hang down from the left and right ends of the slope part 3 while being spaced apart in the left-right direction and facing each other.

A hole passing through in the left and right direction is formed in each of the pair of left and right rotation receiving parts 21, and a hole passing through in the left and right direction is formed in each of the pair of left and right rotation parts 32. A pair of left and right hinge mechanisms is constituted by the rotation receiving part 21, the rotation part 32, and the pin, and the slope part 3 is rotatably connected to the base part 2 in the vertical direction using these hinge mechanisms as rotational fulcrums. and installed. Thereby, the slope part 3 is configured to be rotatable in the vertical direction from a horizontal position in which the upper end part 3c contacts the base part 2, so that the upper end part 3c moves upward and is inclined with respect to the base part 2. Ru.

The inclination adjusting part 4 is for changing the height of the other end (upper end 3c) of the slope part 3 with respect to the base part 2, and changing the inclination angle of the slope part 3. It has different long engagement legs 41 and short engagement legs 42.

The elongated engagement legs 41 are provided as a pair of left and right legs, each of which is arranged along a plane along the vertical direction and the front-back direction, and which are spaced apart in the left-right direction and face each other.

A hole is formed that passes through the upper end of the long engagement leg 41 in the left-right direction, and by passing the rotation shaft 313 of the leg support section 31 through this through hole, the long engagement leg 41 is moved relative to the slope section 3. Mounted for vertical rotation.

The lower end portions of the left and right pair of elongated engagement legs 41 are connected to each other by a connecting shaft portion 412 extending in the left-right direction. Furthermore, an engagement convex portion 411 that protrudes outward along the left-right direction is provided at the lower end of each long engagement leg 41 .

The short engagement legs 42 are arranged adjacent to the outer sides in the left and right direction of each of the left and right long engagement legs 41, and are arranged along a surface along the up-down direction and the front-back direction, and are spaced apart from each other in the left-right direction. They are provided as a pair of right and left that face each other directly.

A hole is formed that passes through the upper end of the short engagement leg 42 in the left-right direction, and by passing the rotation shaft 313 of the leg support section 31 through this through hole, the short engagement leg 42 is rotated in a direction perpendicular to the slope section 3. It is rotatably attached to the

The lower end portions of the pair of left and right short engagement legs 42 are connected to each other by a connecting shaft portion 422 extending in the left-right direction. Furthermore, an engagement convex portion 421 that projects outward along the left-right direction is provided at the lower end of each short engagement leg 42 .

The long engagement leg 41 and the short engagement leg 42 are leg portions of the long engagement leg 41 located on the lower side of the step (that is, on the front side of the connection shaft 422) than the connection shaft 422 at the lower end of the short engagement leg 42. The mutual positional relationship is adjusted so that the connecting shaft portion 412 and the connecting shaft portion 412 are positioned, and the connecting shaft portion 412 is rotatably attached to the slope portion 3.

Each of the above-mentioned constituent members constituting the slope device 1 is assembled by, for example, being joined by welding or mutually fixed by fastening members such as screws.

Next, the operation of the slope device 1 configured as described above will be explained with reference to FIGS. 5 to 9. In addition, in FIGS. 5 to 8, for ease of understanding, the side frame member 2c on the near side (that is, on the right side with respect to the slope device 1) in each figure is shown as transparent.

First, the base portion 2 is placed at a predetermined position on the lower surface of the stepped portion, and the slope device 1 is installed on the stepped portion. Next, the engagement convex portions 411 of the long engagement legs 41 and the short engagement convex portions of the plurality of engagement recesses 43 are adjusted so that the position of the upper step surface of the stepped portion and the height of the upper end portion 3c of the slope portion 3 match or approximately match. By changing the engagement position of the engagement convex portion 421 of the engagement leg 42, the height of the upper end portion 3c of the slope portion 3 is changed.

At this time, when the engagement protrusion 411 of the long engagement leg 41 is fitted into the engagement recess 43 at the upper end of the step, the height of the upper end 3c of the slope portion 3 becomes the highest (see FIG. 5). ), the engagement recess 43 into which the engagement convex portion 411 of the elongated engagement leg 41 is fitted and engaged is sequentially moved to the lower step side of the step, until the engagement recess 43 is located at the end of the lower step side. The height of the portion 3c gradually decreases (see FIG. 6). Note that when the engagement protrusion 411 of the long engagement leg 41 is fitted into and engaged with the engagement recess 43 on the upper step side, the engagement protrusion 421 of the short engagement leg 42 is located above the engagement recess 43. , and is not fitted into the engagement recess 43.

Subsequently, when the engagement protrusion 421 of the short engagement leg 42 is fitted into the engagement recess 43 at the upper end of the step and engaged, the height of the upper end 3c of the slope portion 3 is further reduced (see FIG. 7). When the engagement concave portion 43 into which the engagement convex portion 421 of the short engagement leg 42 is fitted and engaged is sequentially changed to the lower level side of the step, the height of the upper end portion 3c of the slope portion 3 gradually becomes lower (see FIG. 8). . Note that when the engagement protrusion 421 of the short engagement leg 42 is fitted into and engaged with the engagement recess 43, the engagement protrusion 411 of the long engagement leg 41 is located on the flat part 44 and moves forward and backward. It is in a state where it can move freely (see Figures 7 and 8).

Here, when the engagement protrusion 411 of the long engagement leg 41 is fitted into and engaged with the engagement recess 43 on the lower side of the step (in other words, when the long engagement leg 41 is greatly inclined) In this case, the short engagement leg 42 comes into contact with the base part 2 (including the members attached to the base part 2) (see FIG. 6), and the engagement protrusion 421 of the short engagement leg 42 comes into contact with the upper part of the step. It may be adjusted so that it fits into and engages with the recess 43. When the long engagement leg 41 is fitted into the engagement recess 43 with a large inclination, the short engagement leg 42 comes into contact with the base part 2 or the short engagement leg 42 is also fitted into the engagement recess 43, thereby reducing the slope. The load applied to the portion 3 is dispersed between the long engagement legs 41 and the short engagement legs 42, and the slope portion 3 is firmly supported by the two engagement legs.

With the position of the upper surface of the stepped portion and the height of the upper end 3c of the slope portion 3 aligned, the slope device 1 is brought as close as possible to the edge of the upper portion of the stepped portion, and the upper approach 5 is moved to the upper end of the stepped portion. spanned across the surface. As a result, a smooth sloped surface with no step is formed by the upper approach 5, the slope portion 3, and the lower approach 6 between the upper step surface and the lower step surface of the step portion.

When moving the slope device 1 or terminating the use of the slope device 1, the slope portion 3 and the base portion 2 are connected by positioning the engagement convex portion 421 of the short engagement leg 42 on the flat portion 44. are closed together, and the slope portion 3 assumes a horizontal position (FIG. 9). At this time, the tip portion of the long engagement leg 41 including the engagement convex portion 411 is housed in a space surrounded by the side wall 3b on the lower surface side of the slope portion 3. As a result, the plate surface of the slope section 3 becomes parallel to the plate surface of the base section 2, and the base section 2 and the slope section 3 are closed together.

According to the slope device 1 according to this embodiment, the engagement convex portions 411 at the tips of the long engagement legs 41 and the short engagement legs 42 of the base portion 2 with respect to the plurality of engagement recesses 43 provided in the base portion 2; The degree of inclination of the slope part 3 (the height of the upper end part 3c of the slope part 3) can be changed by a simple operation of changing the position where the slope part 3 is fitted, which saves time and effort when adjusting the inclination angle of the slope part 3. This makes it possible to reduce the amount of time and reduce the amount of time required.

According to the slope device 1 according to this embodiment, in addition, at least one of the long engagement leg 41 and the short engagement leg 42 having mutually different lengths is selectively fitted into the engagement recess 43. By engaging them with each other, it is possible to increase the range in which the degree of inclination of the slope portion 3 can be changed, and it is possible to expand the applicable range of the slope device 1 and improve convenience.

Although the embodiments of this invention have been described above, the specific configuration is not limited to the above embodiments, and even if there are changes in the design within the scope of the gist of this invention, Included in invention. For example, in the above embodiment, the slope portion 3 is formed into a rectangle in plan view, but the shape of the slope portion 3 is not limited to a rectangle, and the slope portion 3 is formed into a square in plan view. It may be formed into a trapezoidal shape or a trapezoidal shape.

In the above embodiment, the inclination adjustment section 4 has two engagement legs, the long engagement leg 41 and the short engagement leg 42, but the inclination adjustment section 4 is designed to have only one engagement leg. Alternatively, three or more may be provided. Also in this case, the inclination angle of the slope portion 3 can be changed by changing the position in which the engagement protrusion at the tip of the engagement leg fits and engages among the plurality of engagement recesses 43.

1 Slope device 2 Base portion 2a Front frame member 2b Rear frame member 2c Side frame member 21 Rotation receiving portion 3 Slope portion 3a Passage surface 3b Side wall 3c Upper end portion 3d Lower end portion 31 Leg support portion 311 Through hole 312 Shaft support portion 313 Rotating shaft 32 Rotating part 4 Inclination adjustment part 41 Long engagement leg 411 Engagement protrusion 412 Connecting shaft part 42 Short engagement leg 421 Engagement protrusion 422 Connecting shaft part 43 Engagement recess 44 Flat part 5 Upper approach 6 Lower side approach

Claims (4)

The base part and
a slope portion whose one end is rotatably connected to the base portion and is tiltable;
a long engagement leg and a short engagement leg having mutually different lengths, the proximal end of which is rotatably attached to the other end of the slope portion;
a plurality of units provided on the base portion in a line such that the positions in which the distal ends of the long engagement leg and the short engagement leg fit change depending on the degree of rotation of the long engagement leg and the short engagement leg; an engagement recess ;
The short engagement legs are provided as a pair of legs spaced apart from each other and directly facing each other,
The lower ends of the pair of short engaging legs are connected to each other by a connecting shaft,
The leg portion of the long engagement leg is located closer to the one end of the slope portion than the connection shaft portion of the short engagement leg.
A slope device characterized by: At least one of the long engagement leg and the short engagement leg fits into the engagement recess;
The slope device according to claim 1, characterized in that: Adjacent to the one end of the slope part, a lower approach is attached to the base part and becomes an inclined surface between the slope part and the lower step surface of the step part on which the base part is installed. There is,
The slope device according to claim 1 or 2, characterized in that: An upper approach that extends and overhangs from the other end of the slope part and spans between the slope part and the upper surface of the stepped part on which the base part is installed is attached to the slope part. There is,
The slope device according to any one of claims 1 to 3.

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