JP2000227301A - Jig for construction photograph - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately indicate the dimension of the finished work of a civil or architectural structure even when the finished work is photographed without assistance by making insertion holes for holding a pole perpendicularly to a straight ruler through leg members having sliders for fixing the straight ruler. SOLUTION: In a clamp type fixing jig, the distance between recessed grooves provided on the lower surface of an upper plate 4 and the upper surface of a lower plate 4 is set equally to or slightly longer than the width of a straight ruler 11 to be clamped. In order to fix the ruler 11 in a pinching state, the upper and lower plates 4 and 4 which are set at 90 deg. against the front face of the ruler 11 are provided as leg members. Near the center of the upper plate 4, insertion holes 7, 6, and 5 are provided so as to hold a pole 10 at right angles against the ruler 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a measuring jig used for taking photographs of civil engineering and architectural structures, in particular, structures which are to be buried underground or under the floor in a completed state, and The present invention relates to a support for allowing a blackboard to stand vertically on a ground surface when taking a picture.

[0002]

2. Description of the Related Art It is difficult to confirm the shape and dimensions of various concrete blocks buried underground in civil engineering work, such as culvert blocks and gutter blocks, after the work is completed. In addition, the shape and dimensions of the foundation supporting the building or the structure, for example, the crushed stone laying thickness or laying area, cannot be confirmed after the construction is completed. Therefore, when such construction is performed, photographs of the secondary products used in the construction and the foundations formed during the construction are taken in advance, and the shapes and dimensions of those structures are determined. It is possible to check later whether it was constructed.

[0003] In this case, simply photographing the structure can give the general shape, but does not provide the exact shape and dimensions. Therefore, when taking a photograph, the structure is attached with a ruler with a scale. The rulers used at this time are called measurement record staff or inspection instruments, but basically, a linear ruler with a scale to indicate the dimensions and a pole that indicates the measurement position are appropriately combined and used. . Also, usually
An assistant is holding a straight ruler or pole.

In this specification, a linear ruler is mainly used to indicate the size of a structure, and a pole is mainly used to indicate a measurement position. Can be used to indicate the dimensions and the other to indicate the measurement position, and the poles are usually provided with red and white stripes at regular intervals, so the poles can indicate the dimensions of the structure. Because there is, there is no clear usage difference between the straight ruler and the pole. In this specification, what is displayed in the form of a strip or a flat rectangular bar with a scale so that it is easy to see on the surface is called a straight ruler, regardless of the presence or absence of the scale or the sectional shape, and is used to indicate a measurement position. A rod-shaped or band-shaped object is called a pole.

When photographing a structure using a straight ruler or a pole, a plurality of (usually two to three)
The straight rulers and poles of the book) must be kept orthogonal to each other. Also, when taking a picture, it is necessary to make sure that the straight line ruler and the scale of the pole face the camera. When measuring the upper surface of a flat structure, it is sufficient to place a straight ruler on the structure and take an image. When the structure is a foundation of soil or sand that can pierce the pole, the pole can be pierced at the measurement position, and the pole can be erected and a straight line ruler can be used to take a picture alone. However, in other cases, some assistance is needed to hold the straight ruler and pole.

For example, a pole made of a crushed stone or the like may not be able to pierce the pole, so that an assistant who holds the pole vertically or an assistant who supports the straight ruler horizontally is required. When the structure is a tubular block for constructing a culvert, etc., make sure that the assistant who holds the pole by applying it to the measurement position and the straight line ruler are perpendicular to the pole and the scale points toward the camera. An assistant to hold is needed.

When taking a photograph using a plurality of straight rulers,
Conventionally, a jig as shown in FIG. 7 has been used as a jig for holding the straight ruler at right angles. This jig 12
Has a structure in which two square sliders 14 having upper and lower concave grooves 13 into which a straight ruler is fitted are stacked back to back.
It can rotate relative degrees. Therefore, if the straight rulers 11 are inserted into the respective grooves 13 so that the grooves 13 of the two sliders are directed in the direction orthogonal to each other, 2
The straight rulers of the book can be held orthogonally. The sliders 14 and 14 can be rotated relative to each other by 90 degrees because the sliders are rotated relative to each other by 90 degrees during carrying so that the two straight rulers are parallel to each other so that it is convenient for carrying and storing. It is.

When such a jig is used when photographing a structure such as a concrete block, the positional relationship between the straight rulers at 90 degrees can be held by the jig 12, so that if one assistant is present, photographing is possible. It is possible.

A jig as shown in FIG. 8 which is used by passing through a straight ruler is also provided. This jig is a thin rectangular cylindrical transparent plastic slider 14 having an index 15 displayed on the surface thereof, and is inserted into the linear ruler 11 and moved to an appropriate position. Used to specify the location of the.

Conventionally, when a photograph is taken by specifying details on a blackboard in order to leave a record at a construction site, an assistant holds the camera so as to face the camera, or a single piece integrated with the blackboard. There is provided a device in which a stay bar is opened and a blackboard is leaned against a ground surface.

[0011]

As a measuring tool used for taking a photograph of a completed civil engineering building structure, a straight line ruler and a pole are most commonly used, and a small number of tools and high versatility are used. Although measurements can be taken, there is the problem that several assistants are required when taking a picture. On the other hand, when the conventional jig 12 shown in FIG. 7 is used, the number of assistants can be reduced, but an assistant who holds a straight ruler when photographing the front or side is required. , And the wide linear ruler indicates the measurement position,
It is not suitable for taking pictures of the shape of the foundation.

Further, the jig shown in FIG. 8 can only clearly indicate the position of the scale, and cannot show the measurement position when the measurement position is apart from the linear ruler.

According to the present invention, it is possible to take a photograph of a completed civil engineering building structure without an assistant if it is a normal one, and even if an assistant is needed, a photograph can be taken with a smaller number of assistants than before. To provide a measuring jig that can accurately indicate the finished size by the instructions of the pole even when the straight ruler and the structure are separated from each other, and that is convenient for handling and transportation. Is an issue.

A blackboard used for taking a photograph of a finished structure of a civil engineering building is generally held by an assistant so as to face a camera, or a conventional blackboard as shown in FIGS. Place the blackboard diagonally with respect to the ground surface using the blackboard stays. In this case, no assistant is needed, but the blackboard is installed at an angle to the ground plane, and the character may not be reflected due to irregular reflection by the light of the sun or light. In addition, the stay bar leans against the blackboard diagonally, and the contact area of the stay bar is extremely small and unstable. SUMMARY OF THE INVENTION It is an object of the present invention to provide a blackboard that stands vertically with respect to a grounding surface, and to provide more stability than conventional stays of a blackboard.

[0015]

A finished jig according to the present invention is a slider-type ruler fixture attached to a linear ruler. On the upper surface side and the lower surface side.

[0016] The upper and lower members for holding the pole 10 perpendicular to the straight ruler are provided on the leg member 4 as a material on the front side and the rear side of the straight ruler.

[0017] On the front and rear sides of the straight ruler on the leg member 4 which is a material, the same diameter as the upper and lower members for holding the poles perpendicular to the straight ruler, and on the front and rear sides of the straight ruler on the leg member 4, This is a structure in which a plurality of insertion holes 7, 6, and 5 having different inner diameters are provided along a straight ruler.

[0018]

[0019]

FIG. 1 is a perspective view showing the present invention. The measuring jig of this embodiment is of a clamp type, and the distance between the lower surface of the upper plate 3 and the upper surface of the lower plate 3 is set to be equal to or slightly longer than the width of the straight ruler 11 to be gripped. An upper plate 4 and a lower plate 4 are provided as leg members extending below the upper surface of the ruler fixing tool and fixed at 90 degrees with respect to the front surface of the linear ruler so as to hold the straight ruler therebetween. Each corner of the plate and the lower plate is provided with a circular or angular stopper 9 for stabilization. Near the center of upper plate 4 and lower plate 4 Holes 7, 6, 5 are provided to hold the pole perpendicular to the straight ruler. The upper plate and the lower plate each have an insertion hole having the same diameter.

FIG. 2 shows an embodiment of the present invention and is a perspective view showing a state of use and the front of a straight ruler. Are used by providing an insertion hole 6 through which they can be inserted.

FIG. 3 is a sectional view showing an embodiment of the present invention and showing a use state. Ruler fixed Thus, the pole 10 is vertically supported on the structure, and the pole 10 indicates the measurement position of the structure. In this state, a photograph showing the shape and dimensions of the structure can be taken.

FIG. 4 shows an upper plate 4 and a lower plate 4 according to the present invention.
And a plurality of insertion holes 7, 6, and 5 of several diameters according to the size of the pole are provided. Each corner of the plate serving as the ground and the ground contact surface has a circular shape or a stabilizing shape. With a square stop 9 Are provided at a plurality of locations.

FIG. 5 shows a second embodiment of the present invention. The jig of the present embodiment has a blackboard The plate 4 and the lower plate 4 are leg members of a concave receiving frame 17 having the same width and length.

[0024] For this purpose, the upper plate 4 and the lower plate 4 serving as leg members are made symmetrical in the left-right direction to be stable. black Attach the non-slip material 3 in the concave groove.

[0025]

EFFECTS OF THE INVENTION A measuring jig used for taking photographs of civil engineering and architectural structures, particularly those that are to be buried underground or under the floor in the completed state, can be used for photographing with a small number of assistants. It is possible to accurately indicate the dimensions even when the ruler and the structure are located apart from each other. In addition, using the upper plate 4 and the lower plate 4 as leg members,

[Brief description of the drawings]

FIG. 1 is a perspective view of a construction photograph jig.

FIG. 2 is a perspective view showing a use state at the time of measuring the finished shape of a structure in the first embodiment of the construction photograph jig.

FIG. 3 is a cross-sectional view showing a use state at the time of measuring the finished shape of a structure in the first embodiment of the construction photograph jig.

FIG. 4 is a plan view showing both sides from the upper side and the lower side of the construction photograph jig.

FIG. 5 is a perspective view of a construction photo jig according to a second embodiment of the present invention, in which two construction photo jigs serving as legs when the blackboard is set up vertically are arranged.

FIG. 6 is a cross-sectional view of a second embodiment of a construction photograph jig in which a blackboard is set up vertically.

FIG. 7 is a perspective view of a conventional construction photograph jig.

FIG. 8 is a perspective view showing another example of a conventional construction photograph jig.

FIG. 9 is a perspective view of a state where a conventional stay is used as viewed from the back side of a blackboard.

FIG. 10 is a perspective view showing another example of a state in which a conventional stay is used as viewed from the back side of a blackboard.

[Explanation of symbols]

Reference Signs List 2 back plate 3 concave groove 4 top plate, lower plate 5 insertion hole 6 insertion hole 7 insertion hole 8 flat screw 9 projection 10 pole 11 straight ruler 12 conventional jig 13 groove 14 slider 15 indicator 17 Recessed receiving frame 19 Refuge 20 Refuge 21 Back frame of blackboard 22 Surface

Claims (3)

[Claims] 1. A ruler having a groove in a slider for fixing a linear ruler. A jig for construction photography, which has insertion holes of the same diameter in the upper and lower members that hold 0 perpendicular to the straight ruler. 2. A ruler fixing having a concave groove of a slider for fixing the linear ruler 11. A plurality of through-holes 7, 6, and 5 having different inner diameters are formed along the straight ruler on the front and rear sides of the straight ruler on the leg member 4 on the leg member 4 with the same diameter for the upper and lower members that are held perpendicular to the straight ruler. Equipped with a jig for construction photography. (3) Jig for construction photography.