Measuring tape

Abstract

Since the measuring tape consists of a measuring tape, a starting end slider, a ending end slider, and a suspension member, it can be made lighter and smaller than a so-called convex measuring tape which consists of a case and a measuring tape. The measuring tape can be detached from the starting end slider and the ending end slider, and the measuring tape can be held in a straight line due to its inherent straightness retention properties based on the arc shape of its cross-section. For example, it can be used as a leveling rod to measure height dimensions in leveling surveys. [Solution] The device comprises a measuring tape 1, a starting end slider 2 and a ending end slider 3, and a suspension member 4 capable of suspending the winding portion I of the measuring tape.

Description

Technical Field

[0001] The present invention mainly relates to a measuring tape used for measuring the distance between reinforcing bars, photographing the reinforcement state, leveling, etc. at construction and civil engineering sites.

Background Art

[0002] Conventionally, for measuring the distance between reinforcing bars, photographing the reinforcement state, leveling, etc. of this type, a scale ruler having a structure in which scales and numbers are attached to the surface of a long plate material, so-called a scale, has been used.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the case of the above scale, for example, since it is a long material made of wood or aluminum, it has poor portability and storage properties. Also, a so-called convex type consisting of a case and a measuring tape can be used, but in the case of the convex type, due to the presence of the case, it is likely to become heavier and larger, has poor portability and storage properties, and in high-place work, etc., it places a large burden on workers and involves risks to workers, and may have various inconveniences.

Means for Solving the Problems

[0005] The present invention aims to solve these problems, and the invention described in claim 1 of the present invention is a measuring tape formed in a cross-sectional arc shape with a concave surface and a convex back surface, with a length scale formed on the surface for measuring the length between two points of an object to be measured, and having inherent straightness retention and winding retention properties depending on the cross-sectional arc shape, a start-end slider and a end-end slider through which the measuring tape is inserted, maintaining the cross-sectional arc shape and being able to slide linearly between the start end and end end of the measuring tape, a winding portion formed on the back side of the measuring tape by winding at the end end of the measuring tape due to the inherent winding retention properties as the end-end slider slides, and the winding portion at the end of the measuring tape is unwound and held linearly due to the inherent straightness retention properties as the end-end slider slides, and the end-end slider The measuring tape is provided with a suspension member disposed on the end slider and capable of suspending the winding portion of the measuring tape, the suspension member having a pair of opposing guide portions capable of guiding both side edges of the measuring tape, and a suspension portion that is inserted through the winding core hole portion of the winding portion and capable of suspending the winding portion, the guide portion of the suspension member being pivotally connected to the end slider by a connecting shaft, the suspension member being disposed to swing freely between the back side direction of the measuring tape and the front side direction of the measuring tape with respect to the axis of the connecting shaft, and a positioning mechanism is provided that can position the suspension member at a guide position on the back side of the measuring tape and at a retracted position on the front side of the measuring tape, respectively, the positioning mechanism comprising a positioning projection formed on the end slider and a plurality of positioning holes formed on the guide portion of the suspension member that selectively fit with the positioning projection.

[0006] Furthermore, the invention described in claim 2 is characterized in that a movable claw member having a pressing surface for pressing against the measuring surface of the object to be measured and a hooking surface for hooking onto the measuring surface of the object to be measured is provided on the starting end side of the measuring tape, and the invention described in claim 3 is characterized in that a permanent magnet is provided on the movable claw member.

[0007] Furthermore, the invention described in claim 4 is characterized in that a tilting member capable of pressing the surface of the measuring tape against the end slider is provided so as to be tiltable, and a tilting operation mechanism is provided that allows the surface of the measuring tape to be pressed and fixed and released by raising or lowering the tilting member.

[0008] Furthermore, the invention described in claim 5 is characterized in that a retaining pin is provided on the end side of the measuring tape, and a retaining portion capable of abutting against the retaining pin is formed on the end side slider, and the invention described in claim 6 is characterized in that permanent magnets are provided on the start side slider and the end side slider, respectively, and the invention described in claim 7 is characterized in that permanent magnets are provided on the top and bottom surfaces of the start side slider, permanent magnets are provided on the top and bottom surfaces of the end side slider, and length markings are formed on the front and back surfaces of the measuring tape.

[0009] Furthermore, the invention described in claim 8 is characterized in that a finger grip portion is formed on the starting end slider and the ending end slider, and a suspension hole portion is formed on the suspension member, and furthermore, the invention described in claim 9 is characterized in that a plurality of starting end sliders are prepared and the plurality of starting end sliders are arranged on the measuring tape so as to be attachable and detachable. [Effects of the Invention]

[0010] As described above, in the invention described in claim 1, the end slider is slid toward the end, and as it slides toward the end, the winding portion at the end of the measuring tape is unwound due to the inherent straightness retention property, and the measuring tape is held in a straight shape. Furthermore, when the end of the measuring tape is folded toward the back side, the measuring tape is wound into a flat cross-sectional shape due to the inherent winding retention property based on the arc shape of the cross-section of the measuring tape. In addition, when the end slider is slid toward the start end, as the end slider slides toward the start end, the inherent Due to its winding and holding properties, the tape is wound into a flat cross-sectional shape, forming a wound portion on the back side of the tape measure. Therefore, as the end slider slides toward the starting end, the end of the tape measure is wound up due to its inherent winding and holding properties, forming a wound portion on the back side of the tape measure. As the end slider slides toward the ending end, the wound portion at the end of the tape measure is unwound due to its inherent straight-line holding properties, and the tape measure is held in a straight line. In this case, the tape measure is composed of the tape measure, the starting end slider, the end slider, and the suspension member, thus reducing weight and size. It can be made lighter and smaller compared to a so-called convex measuring tape consisting of a case and tape, improving portability and storage, reducing the burden on workers during work at heights, avoiding danger to workers, and increasing work safety. Furthermore, when used for photography, the end slider is slid toward the end, and as it slides toward the end, the winding portion of the end of the tape is held straight due to the inherent straightness retention property based on the arc shape of the cross-sectional shape of the tape. The tape measure can be unwound and held in a straight line, and when not in use, such as when carrying it, the end slider can be slid toward the beginning, and as the end slider slides toward the beginning, the end of the tape measure can be wound into a flat cross-sectional shape due to the inherent winding and holding properties that depend on the arc shape of the cross-sectional shape of the tape measure, forming a wound portion on the back side of the tape measure. The sliding of the end slider allows for immediate response to the state of use or non-use, and furthermore, the end slider is equipped with a suspension member that can suspend the wound portion of the tape measure.The above-mentioned tape measure can prevent the self-unwinding phenomenon, or so-called sagging phenomenon, caused by the weight of the winding portion of the tape measure, allowing for safe carrying of the tape measure. Furthermore, the tape measure can be held in a straight line due to its inherent straight-line holding properties based on the arc shape of its cross-section. For example, it can be used as a leveling rod to measure height dimensions in leveling surveys, reducing the burden on workers during work at heights, avoiding danger to workers, and improving work safety. Moreover, the above-mentioned suspension member secures both sides of the tape measure. Since the suspension member has a pair of opposing guide sections that can be inserted into the core hole of the winding section and is capable of suspending the winding section, the guide sections of the suspension member can protect both sides of the winding section from external forces. Furthermore, since the guide sections of the suspension member are pivotally connected to the end slider by a connecting shaft, and the suspension member is arranged to swing freely between the back side direction of the measuring tape and the front side direction of the measuring tape with respect to the axis of the connecting shaft, the suspension member can swing according to the winding diameter of the winding section as the measuring tape is wound up and unwound. The tape can be wound up and unwound smoothly, allowing for accurate measurement and inspection of the spacing between reinforcing bars and accurate photography of the rebar arrangement. Furthermore, a positioning mechanism is provided that allows the suspension member to be positioned at a guide position on the back side of the tape measure and at a retracted position on the front side of the tape measure. The positioning mechanism comprises a positioning projection formed on the end slider and a plurality of positioning holes formed on the guide portion of the suspension member that selectively engage with the positioning projection. As a result, the suspension member can swing in the guide position according to the winding diameter of the wound portion when winding up and unwinding the tape measure, allowing for smooth winding up and unwinding of the tape measure. The positioning mechanism allows the suspension member to be fixed in the guide position and retracted position. When the end slider is slid towards the end of the tape measure and there is no wound portion, the suspension member can swing from the guide position to the retracted position, allowing the bottom surface of the end slider to be brought into close contact with the object to be measured. For example, it can be brought into close contact with multiple reinforcing bars, allowing for accurate measurement and inspection of the spacing between reinforcing bars and accurate photography of the rebar arrangement. ,

[0011] Furthermore, in the invention described in claim 2, a movable claw member having a pressing surface for pressing against the measuring surface of the object to be measured and a hooking surface for hooking onto the measuring surface of the object to be measured is provided on the starting end side of the measuring tape. Therefore, pressing measurement can be performed by pressing the pressing surface against the measuring surface of the object to be measured, or hooking measurement can be performed by hooking the hooking surface onto the measuring surface of the object to be measured. The movable claw member moves in accordance with the pressing measurement and hooking measurement, and measurement can be easily performed by moving the movable claw member. Furthermore, in the invention described in claim 3, a permanent magnet is provided on the movable claw member. Therefore, the movable claw member can be fixed to the object to be measured by the magnetic attraction of the permanent magnet, and pressing measurement can be easily performed.

[0012] Furthermore, in the invention described in claim 4, a tilting member capable of pressing the surface of the measuring tape against the end slider is provided so as to be tiltable, and a tilting operation mechanism is provided that allows the surface of the measuring tape to be pressed and fixed and released by raising or lowering the tilting member. Therefore, the tilting member can be lowered by the tilting operation mechanism to press and fix the surface of the measuring tape, preventing sliding of the measuring tape in the end and start directions, preventing unexpected sliding of the measuring tape, and facilitating measurement.

[0013] Furthermore, in the invention described in claim 5, a retaining pin is provided on the end side of the measuring tape, and a retaining portion is formed on the end side slider that can abut against the retaining pin, so that the measuring tape can not be removed from the end side slider, and in combination with the retaining action of the start side slider by the movable claw member, the measuring tape can not be removed from the start side slider and the end side slider, and furthermore, in the invention described in claim 6, permanent magnets are provided on the start side slider and the end side slider respectively, so that the start side slider and the end side slider can be fixed to an object to be measured, such as reinforcing bars, by the magnetic attraction action of the permanent magnets, so that the spacing between reinforcing bars and the photographing of the reinforcing bar arrangement can be easily and accurately performed, and also, claim 7 In the described invention, permanent magnets are provided on the top and bottom surfaces of the starting slider and the ending slider, and length markings are formed on the front and back surfaces of the measuring tape. Therefore, the measuring tape can be fixed to the object to be measured, such as reinforcing bars, by the magnetic attraction between the permanent magnets on the top surface of the starting slider and the top surface of the ending slider, or between the bottom surface of the starting slider and the bottom surface of the ending slider, and the length markings on the front or back surface of the measuring tape can be visually observed. Furthermore, the measuring tape can be fixed to the object to be measured, such as reinforcing bars, by the permanent magnets on both the top and bottom surfaces of the starting slider and both the top and bottom surfaces of the ending slider, making it easy and accurate to measure and inspect the spacing between reinforcing bars and to take photographs of the reinforcement arrangement.

[0014] Furthermore, in the invention described in claim 8, a finger grip is formed on the starting slider and the ending slider, and a suspension hole is formed on the suspension member. As a result, the starting slider and the ending slider can be easily slid by the finger grip, and a suspension member such as a carabiner can be attached to the suspension hole. The measuring tape can then be suspended from a waist belt worn by a worker by the suspension member, improving workability and portability. Furthermore, in the invention described in claim 9, multiple starting sliders are provided, and multiple starting sliders are detachably attached to the measuring tape. As a result, the measuring tape can be securely fixed in position on the object to be measured by the multiple starting sliders. For example, the measuring tape can be securely fixed in position on multiple reinforcing bars arranged in the vertical and horizontal directions, making it easy and accurate to measure and inspect the spacing between reinforcing bars and to take photographs of the reinforcing bar arrangement. [Brief explanation of the drawing]

[0015] [Figure 1] This is an overall perspective view of an embodiment of the present invention. [Figure 2] This is an overall side view of an embodiment of the present invention. [Figure 3] This is an overall plan view of an embodiment of the present invention. [Figure 4] This is an overall perspective view of an embodiment of the present invention. [Figure 5] This is an exploded perspective view of an embodiment of the present invention. [Figure 6] This is an overall side cross-sectional view of an embodiment of the present invention. [Figure 7] This is a cross-sectional view of an embodiment of the present invention. [Figure 8] This is a partial side cross-sectional view of an embodiment of the present invention. [Figure 9] This is a partial side cross-sectional view of an embodiment of the present invention. [Figure 10] This is a partial plan view of an embodiment of the present invention. [Figure 11] This is a partial side cross-sectional view of an embodiment of the present invention. [Figure 12]It is a partial plan view of an embodiment example of the present invention. [Figure 13] It is a partial side cross-sectional view of an embodiment example of the present invention. [Figure 14] It is an explanatory view of an embodiment example of the present invention. [Figure 15] It is an explanatory view of the usage state of an embodiment example of the present invention. [Figure 16] It is an explanatory view of another usage state of an embodiment example of the present invention. [Figure 17] It is a side cross-sectional view of another usage state of an embodiment example of the present invention.

Embodiments for Carrying out the Invention

[0016] Figures 1 to 17 show an embodiment example of the present invention. 1 is a measuring tape, which is made of metal in this case. The tape width is 30 mm and the tape length is 210 cm. As shown in Figures 1 and 4, the surface 1a is formed in a concave shape and the back surface 1b is formed in a convex cross-sectional arc shape. For example, it is continuously formed by roll forming. A length scale M for measuring the length dimension between two points of the object to be measured G is formed on the surface 1a. The measuring tape 1 is provided with a unique linear holding property and winding-in holding property that depend on the above cross-sectional arc shape.

[0017] 2 is a start-end side slider and 3 is an end-side slider. In this case, both are made of synthetic resin. As shown in Figures 4 and 5, arc-shaped insertion hole portions 2H and 3H are respectively formed in the start-end side slider 2 and the end-side slider 3. The bottom surfaces 2QS and 3QS of the start-end side slider 2 and the end-side slider 3 are formed as contact surfaces to the object to be measured G. The measuring tape 1 is inserted into the insertion hole portions 2H and 3H. By inserting into the insertion hole portions 2H and 3H, the above cross-sectional arc shape of the measuring tape 1 is maintained in shape, and it is configured to be linearly slidable between the start-end side S and the end-side E of the measuring tape 1.

[0018] However, as shown in Figure 2, as the end slider 3 slides toward the starting end S, the end E of the measuring tape 1 is wound up due to its inherent winding and holding properties, forming a wound portion I on the back surface 1b of the measuring tape 1. Conversely, as the end slider 3 slides toward the end E, the wound portion I on the end E of the measuring tape 1 is unwound due to its inherent straight-line holding properties, maintaining its arc-shaped cross-section and being held in a straight line.

[0019] 4 is a suspension member, which in this case is made of synthetic resin and is arranged on the end-side slider 3 as shown in Figures 1 and 6, and is formed to be able to suspend the winding portion I of the measuring tape 1. The measuring tape SK is composed of the measuring tape 1, the start-side slider 2, the end-side slider 3, and the suspension member 4.

[0020] Furthermore, in this case, as shown in Figures 4 and 5, both the starting end slider 2 and the ending end slider 3 are provided so as to be able to attach to and detach from the measuring tape 1, and in the case of the starting end slider 2, as shown in Figures 2, 4, 5, and 7, the starting end slider 2 consists of two members, a lower frame 2a and an upper frame 2b, which can be fitted together, and an insertion hole 2H is formed by creating an opposing gap between the two wall portions 2aK·2aK of the lower frame 2a and the two wall portions 2bK·2bK of the upper frame 2b, and two side portions 2bS·2bS are formed on the upper frame 2b, and the two side portions 2bS·2bS are locked together Grooves 2bM·2bM are formed, two side portions 2aS·2aS are formed on the lower frame 2a, locking protrusions 2aD·2aD are formed on the two side portions 2aS·2aS that can be fitted into and removed from the locking grooves 2bM·2bM, and an insertion groove portion 2aC is formed at the bottom of the lower frame 2a into which a prying member C such as a coin can be inserted, and by inserting the prying member C into the insertion groove portion 2aC, one side portion 2bS of the upper frame 2b is pryed open, and thus the starting end slider 2 is provided to be able to be attached to and detached from the measuring tape 1 by the mutual disassembly and attachment of the lower frame 2a and upper frame 2b of the starting end slider 2.

[0021] Furthermore, in the terminal slider 3, as shown in Figures 4 and 5, the terminal slider 3 consists of two members, a lower frame 3a and an upper frame 3b, which can be fitted together. An insertion hole 3H is formed by creating an opposing gap between the three wall portions 3aK·3aK·3aK of the lower frame 3a and the two wall portions 3bK·3bK of the upper frame 3b. Two side portions 3bS·3bS are formed on the upper frame 3b, and a locking groove hole 3bM is formed on one of the side portions 3bS. Two side portions 3aS·3aS are formed on the lower frame 3a, and one of the side portions 3bS is formed on the upper frame 3b. One side 3bS of the upper frame 3b is pivotally attached to the side 3aS by a pivot 3bJ so as to be openable and closable, and a locking projection 3aD is formed on the other side 3aS that can be fitted into and out of the locking groove hole 3bM. Thus, one side 3bS of the upper frame 3b is made openable and closable about the axis O1 of the pivot 3bJ, and the locking projection 3aD can be fitted into and out of the locking groove hole 3bM, and the end slider 3 is provided so as to be able to be attached to and detached from the measuring tape 1 by opening and closing and detaching the lower frame 3a and the upper frame 3b from each other.

[0022] 5 is a tilting member, and T is a tilting operation mechanism. In this case, as shown in Figures 4 and 5, a fitting hole 3bH is formed in the upper frame 3b of the end-side slider 3, and a pair of opposing bearing groove holes 3bG·3bG are formed in the fitting hole 3bH. Pivots 5J·5J are formed on the tilting member 5 so that they can be pivotally attached to the bearing groove holes 3bG·3bG. As shown in Figures 4, 5, 8, and 9, the tilting member 5 is provided so that it can be freely raised or lowered around the axis O2 of the pivots 5J·5J, and stoppers 3cS·3cS for the tilting member 5 are formed on the end-side slider 3. As shown in Figures 8 to 9, the tilting mechanism T lowers the tilting member 5, and at this time, the distance and positional relationship between the axis O2 of the pivot 5J·5J, which serves as the rotation center of the tilting member 5, and the pressure contact point of the measuring tape 1 by the tilting member 5 is taken into consideration, and the surface 1a of the measuring tape 1 is pressed against it and the back surface 1b of the measuring tape 1 is pressed against and fixed to the wall portion 3aK at the central position of the lower frame 3a. Furthermore, as shown in Figures 9 to 8, the tilting mechanism T raises the tilting member 5, and the pressure contact of the surface 1a of the measuring tape 1 can be released.

[0023] In this case, as shown in Figures 2, 4, 5, and 6, the suspension member 4 is pivotally connected to the end-side slider 3 by a connecting shaft 3J, and the suspension member 4 is arranged to swing freely between the back surface 1b side of the measuring tape 1 and the front surface 1a side of the measuring tape 1, with respect to the axis O of the connecting shaft 3J. In this case, as shown in Figure 2, the suspension member 4 is equipped with a positioning mechanism D that allows it to be positioned at a position that protrudes from the plane F including the bottom surface 3QS of the end-side slider 3, which serves as the guide position GP on the back surface 1b side of the measuring tape 1, and at a position that protrudes from the plane F including the bottom surface 3QS of the end-side slider 3, which serves as the retracted position EP on the front surface 1a side of the measuring tape 1.

[0024] In this case, as shown in Figures 4, 5, and 6, the suspension member 4 is formed by a cover portion 4a that covers the surface side of the winding portion I of the measuring tape 1, a pair of opposing guide portions 4b, 4b that can guide both side edges 1c, 1c of the measuring tape 1, and a suspension portion 4c that is inserted through the core hole portion IH of the winding portion I and can suspend the winding portion I, with the guide portion 4b of the suspension member 4 pivotally connected to the end-side slider 3 by a connecting shaft 3J.

[0025] In this case, as shown in Figures 4, 5, and 6, the positioning mechanism D is configured to have support pieces 3d·3d formed on both sides of the terminal side E of the terminal slider 3, a positioning projection 3e formed on the outer surface of the support pieces 3d·3d, and two positioning holes 4f·4f formed on the guide portion 4b·4b of the suspension member 4 that selectively fit into the positioning projection 3e. The suspension member 4 is configured to swing between the guide position GP and the retracted position EP about the axis O of the connecting shaft 3J, and to position the suspension member 4 at the guide position GP or the retracted position EP by the fitting of the positioning projection 3e with one of the positioning holes 4f·4f.

[0026] In this case, as shown in Figures 10 and 12, a movable claw member 6 is provided at the starting end S of the measuring tape 1, having a pressing surface 6a that presses against the measuring surface G1 of the object G to be measured and a hooking surface 6b that hooks onto the measuring surface G2 of the object G to be measured. The movable claw member 6 has upper claw portions 6f and 6f that protrude towards the surface 1a of the measuring tape 1 and a lower claw portion 6g that protrudes towards the back surface 1b of the measuring tape 1. The upper claw portions 6f and 6f and the lower claw portion 6g are used to hook and measure the object G when the upper surfaces 2QU and 3QU of the starting end slider 2 and the ending end slider 3 or the bottom surfaces 2QS and 3QS of the starting end slider 2 and the ending end slider 3 are fixed to the object G by a permanent magnet MG, respectively, using either the upper claw portions 6f and 6f or the lower claw portion 6g to hook onto the measuring surface G2 of the object G to be measured. As shown in Figures 11, 12, and 13, the movable claw member 6 is formed in a hook shape, and the movable claw member 6 is provided to move freely relative to the measuring tape 1 by the difference in the measurement base points of the pressing surface 6a and the hooking surface 6b by the zero point correction mechanism Z. In this case, the pressing plate 6c is fixed to the measuring tape 1 with four rivets 6d·6d·6d·6d, three rivets 6d·6d·6d are fixed to the measuring tape 1 and the pressing plate 6c, and the three rivets 6d·6d·6d are slidably fitted into three movable elongated holes 6e·6e·6e formed in the movable claw member 6. A permanent magnet MG is disposed on the movable claw member 6, protruding from the starting end side surface of the movable claw member 6, and the permanent magnet MG is disposed on the same plane as the rear end side surface of the movable claw member 6. For this reason, the pressing surface 6a is the starting end side surface of the permanent magnet MG. In addition, there is also a structure of the movable claw member 6 that does not have the permanent magnet MG mentioned above, in which case the pressing surface 6a will be the starting end side surface of the movable claw member 6.

[0027] In this case, as shown in Figures 5 and 6, a retaining pin NP is provided at the end E of the measuring tape 1, and a retaining portion 3bT is formed on the end slider 3 that can abut against the retaining pin NP. The contact between the retaining pin NP at the end E of the measuring tape 1 and the retaining portion 3bT of the end slider 3 prevents the measuring tape 1 from coming off towards the starting end S.

[0028] In this case, as shown in Figure 1, permanent magnets MG·· are provided on the starting slider 2 and the ending slider 3, respectively. Furthermore, as shown in Figures 4, 6, and 7, permanent magnets MG are provided on the upper surface 2QU and the bottom surface 2QS of the starting slider 2, and permanent magnets MG are provided on the upper surface 3QU and the bottom surface 3QS of the ending slider 3. Length scales M are formed on the front surface 1a and back surface 1b of the measuring tape 1. Furthermore, as shown in Figures 4 and 14, vertical scales MT for measuring the vertical length dimension (height dimension) are formed on the front surface 1a of the measuring tape 1, and horizontal scales MY for measuring the horizontal length dimension are formed on the back surface 1b of the measuring tape 1.

[0029] In this case, as shown in Figures 1 and 3, finger grips 2Y and 3Y are formed on the starting slider 2 and the ending slider 3, respectively, and a suspension hole 4e is formed on the protruding piece 4d of the suspension member 4.

[0030] In this case, as shown in Figures 16 and 17, multiple starting end sliders 2 are provided, and multiple starting end sliders 2 are attached to the measuring tape 1 in a manner that allows them to be easily attached and detached.

[0031] In this embodiment, as shown in Figure 4, the end slider 3 is slid toward the end E direction, and as it slides toward the end E direction, the winding portion I of the end E of the measuring tape 1 is unwound due to the inherent straightness retention property, and the measuring tape 1 is held in a straight line. Furthermore, in the state of Figure 4, when the end E of the measuring tape 1 is folded toward the back surface 1b side of the measuring tape 1, the measuring tape 1 is wound into a flat cross-sectional shape due to the inherent winding retention property that relies on the arc shape of the cross-sectional shape of the measuring tape 1. Furthermore, when the end slider 3 is slid toward the start end S direction, the end slider As the slider 3 slides toward the starting end S, as shown in Figures 1 and 2, the end end E of the measuring tape 1 is wound into a flat cross-sectional shape due to the inherent winding retention properties, forming a wound portion I on the back surface 1b side of the measuring tape 1. Therefore, as the end slider 3 slides toward the starting end S, the end end E of the measuring tape 1 is wound into the inherent winding retention properties, forming a wound portion I on the back surface 1b side of the measuring tape 1. As the end slider 3 slides toward the end end E, the wound portion I on the end end E of the measuring tape 1 is unwound and held in a straight line due to the inherent straight-line retention properties.

[0032] In this case, as shown in Figure 1, the measuring tape SK is composed of a measuring tape 1, a starting end slider 2, a terminal end slider 3, and a suspension member 4. Therefore, it can be made lighter and smaller, and compared to a so-called convex measuring tape consisting of a case and a measuring tape, it can be made lighter and smaller, improving portability and storage, reducing the burden on workers during work at heights, avoiding dangers to workers, and enhancing work safety. Furthermore, when used for photography, etc., the end slider 3 is slid toward the end E direction, and as it slides toward the end E direction, the winding portion I at the end E of the measuring tape 1 is unwound due to the inherent straightness-holding properties based on the arc shape of the cross-sectional shape of the measuring tape 1, and the measuring tape 1 can be held in a straight line. When not in use, such as when carrying, the end slider 3 is slid toward the start S direction, and as the end slider 3 slides toward the start S direction, the end E of the measuring tape 1 and the measuring tape Due to the inherent winding and holding properties based on the arc shape of the cross-section of the tape measure 1, it can be wound into a flat cross-section, forming a wound portion I on the back side 1b of the tape measure 1, and the sliding of the end slider 3 allows for immediate response to the state of use or non-use, thereby significantly improving work efficiency, such as measuring and inspecting the spacing P between reinforcing bars RB and taking photographs of the reinforcement arrangement, as shown in Figures 16 and 17. Moreover, due to the inherent winding and holding properties based on the arc shape of the cross-section of the tape measure 1, the back side of the tape measure 1 A winding section I can be formed on side 1b, improving the portability and storage of the measuring tape SK, reducing the burden on workers during work at heights, avoiding danger to workers, and enhancing work safety. Furthermore, since the end slider 3 is equipped with a suspension member 4 capable of suspending the winding section I of the measuring tape 1, the self-unwinding phenomenon, or so-called sagging phenomenon, caused by the weight of the winding section I of the measuring tape 1 can be prevented, allowing the measuring tape SK to be carried safely.

[0033] Furthermore, as shown in Figure 5, since both the starting slider 2 and the ending slider 3 are provided to be detachable from the measuring tape 1, the measuring tape 1 can be detached from the starting slider 2 and the ending slider 3, and as shown in Figure 14, the measuring tape 1 can be held in a straight line due to its inherent straight-line holding ability based on the arc shape of its cross-section, and can be used, for example, as a leveling rod for measuring height dimensions in leveling surveys, as shown in Figure 15.

[0034] In this case, as shown in Figures 10 and 12, a movable claw member 6 is provided at the starting end S of the measuring tape 1, having a pressing surface 6a that presses against the measuring surface G1 of the object G to be measured and a hooking surface 6b that hooks onto the measuring surface G2 of the object G to be measured. Therefore, as shown in Figures 10 and 11, pressing measurement can be performed by pressing the pressing surface 6a against the measuring surface G1 of the object G to be measured, and hook measurement can be performed by hooking the hooking surface 6b onto the measuring surface G2 of the object G to be measured. Furthermore, as shown in Figures 10, 11, 12, and 13, the movable claw member 6 is provided to move freely relative to the measuring tape 1 by the difference in the measurement base points of the pressing surface 6a and the hooking surface 6b by the zero-point correction mechanism Z. Therefore, the movable claw member 6 moves in accordance with pressing measurement and hook measurement, and measurement can be easily performed by moving the movable claw member 6.

[0035] Furthermore, in this case, as shown in Figures 1 and 10, a permanent magnet MG is provided on the movable claw member 6, so that the movable claw member 6 can be fixed to the object to be measured G by the magnetic attraction of the permanent magnet MG, and pressing measurement can be easily performed. Also, in this case, as shown in Figures 4, 8 and 9, a tilting member 5 capable of pressing the surface 1a of the measuring tape 1 is provided on the end-side slider 3 so that it can be tilted, and a tilting operation mechanism T is provided that can press and fix the surface 1a of the measuring tape 1 by raising or lowering the tilting member 5, so that the tilting member 5 can be lowered by the tilting operation mechanism T, the surface 1a of the measuring tape 1 can be pressed and fixed, sliding of the measuring tape 1 in the direction of the end side E and the starting side S can be prevented, unexpected sliding of the measuring tape 1 can be prevented, and measurement can be easily performed.

[0036] Furthermore, in this case, as shown in Figures 2, 4, 5, and 6, the guide portion 4b of the suspension member 4 is pivotally connected to the end-side slider 3 by a connecting shaft 3J, and the suspension member 4 is arranged to swing freely between the back surface 1b side and the front surface 1a side of the measuring tape 1 with respect to the axis O of the connecting shaft 3J. Therefore, the suspension member 4 can swing according to the winding diameter of the winding portion I when winding and unwinding the measuring tape 1, allowing for smooth winding and unwinding of the measuring tape 1. For example, it can be used for measuring and inspecting the spacing P between reinforcing bars RB and for taking photographs of the reinforcement arrangement. This allows for accurate execution of the above, and in this case, as shown in Figure 2, a positioning mechanism D is provided that allows the suspension member 4 to be positioned at the guide position GP on the back surface 1b of the measuring tape 1 and at the retracted position EP on the front surface 1a of the measuring tape 1. The positioning mechanism D comprises a positioning projection 3e formed on the end slider 3 and a plurality of positioning holes 4f formed on the guide portion 4b of the suspension member 4 that selectively engage with the positioning projection 3e. Therefore, the suspension member 4 is positioned at the guide position GP to match the winding diameter of the winding portion I associated with winding and unwinding the measuring tape 1. It can swing accordingly, allowing for smooth winding and unwinding of the measuring tape 1, and the positioning mechanism D can fix it in place at the guide position GP and the retracted position EP. Furthermore, for example, as shown by the dashed line in Figure 2, by sliding the end slider 3 against the end E of the measuring tape 1 and in a state without the winding portion I, the suspension member 4 can swing from the guide position GP to the retracted position EP, allowing the bottom surface 3QS of the end slider 3 to be brought into close contact with the object to be measured G, for example, as shown in Figures 16 and 17, it can be brought into close contact with multiple reinforcing bars RB... The distance P between the members can be accurately measured and inspected, and the reinforcement arrangement can be photographed. In this case, as shown in Figures 4, 5, and 6, the suspension member 4 is formed by a cover portion 4a that covers the surface side of the winding portion I of the measuring tape 1, a pair of opposing guide portions 4b, 4b that can guide both side edges 1c, 1c of the measuring tape 1, and a suspension portion 4c that is inserted into the core hole portion IH of the winding portion I and can suspend the winding portion I. Therefore, the cover portion 4a and guide portions 4b, 4b of the suspension member 4 can protect the surface and both side edges 1c, 1c of the winding portion I from external forces.

[0037] Furthermore, in this case, as shown in Figures 5 and 6, a retaining pin NP is provided on the end E of the measuring tape 1, and a retaining portion 3bT that can abut against the retaining pin NP is formed on the end slider 3, so that the measuring tape 1 can not be detached from the end slider 3, and in combination with the retaining action of the start slider 2 by the movable claw member 6, the measuring tape 1 can not be detached from the start slider 2 and the end slider 3, and in this case, as shown in Figure 1 Since permanent magnets MG are provided on the starting end slider 2 and the ending end slider 3, the magnetic attraction of the permanent magnets MG allows the starting end slider 2 and the ending end slider 3 to be fixed to the object to be measured G, such as reinforcing bars RB, as shown in Figure 16, making it easy and accurate to measure and inspect the spacing P between reinforcing bars RB and to take photographs of the reinforcement arrangement. In this case, as shown in Figures 4, 6, and 7, the starting end slider Permanent magnets MG are provided on the upper surface 2QU and bottom surface 2QS of slider 2, and permanent magnets MG are provided on the upper surface 3QU and bottom surface 3QS of the end-side slider 3, and length scales M are formed on the front surface 1a and back surface 1b of the measuring tape 1. Therefore, the magnetic attraction between the permanent magnets MG on the upper surface 2QU of the start-side slider 2 and the upper surface 3QU of the end-side slider 3, or the magnetic attraction between the bottom surface 2QS of the start-side slider 2 and the bottom surface 3QS of the end-side slider 3, allows for the attachment of reinforcing bars RB and other materials. The measuring tape SK can be fixed to the object G being measured, and the length scale M on the surface 1a or back surface 1b of the measuring tape 1 can be visually confirmed. Furthermore, the measuring tape SK can be fixed to the object G being measured, such as reinforcing bars RB, by the permanent magnets MG on both the upper surface 2QU and the bottom surface 2QS of the starting end slider 2, and on both the upper surface 3QU and the bottom surface 3QS of the ending end slider 3, allowing for easy and accurate measurement and inspection of the spacing P between reinforcing bars RB, as well as taking photographs of the reinforcement arrangement.

[0038] Furthermore, in this case, as shown in Figures 1 and 3, finger grips 2Y and 3Y are formed on the starting slider 2 and the ending slider 3, respectively, and a suspension hole 4e is formed on the suspension member 4. Therefore, the starting slider 2 and the ending slider 3 can be easily slid by the finger grips 2Y and 3Y, a suspension member such as a carabiner can be attached to the suspension hole 4e, and the measuring tape SK can be suspended from a waist belt worn by the worker by the suspension member, thereby improving workability and portability. In this case, as shown in Figures 16 and 17, multiple starting end sliders 2 are provided, and multiple starting end sliders 2 are attached to the measuring tape 1 so as to be detachable. Therefore, the measuring tape SK can be securely fixed to the object G to be measured by the multiple starting end sliders 2. For example, the measuring tape SK can be securely fixed to multiple reinforcing bars RB arranged in the vertical and horizontal directions, making it easy and accurate to measure and inspect the spacing P between reinforcing bars RB and to take photographs of the reinforcement arrangement.

[0039] Furthermore, the present invention is not limited to the above-described embodiments, and the structure and form of the tilting mechanism T, positioning mechanism D, measuring tape 1, surface 1a, back surface 1b, length scale M, vertical scale MT, horizontal scale MY, start end slider 2, end end slider 3, suspension member 4, tilting member 5, and movable claw member 6 can be modified as appropriate in the design.

[0040] In summary, the intended objectives can be fully achieved. [Explanation of symbols]

[0041] SK tape measure G Object to be measured G1 measuring surface G2 measurement surface GP guidance location EP evacuation position M Length scale S Starting end E termination side I. Enclosed section IH winding core hole part T Lifting operation mechanism D Positioning mechanism MG permanent magnet NP Retaining Pin O axis 1 Measuring tape 1a surface 1b back side 1c Bilateral margins 2. Starting end slider 2QU top surface 2QS bottom 2Y Finger rest 3. End-side slider 3bT retaining part 3e Positioning protrusion 3QU top surface 3QS bottom 3J connecting shaft 3Y Finger rest 4. Suspension member 4b Guide section 4c Hanging part 4e Hanging hole 4f Positioning hole 5. Tilting member 6. Movable claw member 6a Pressing surface 6b Hook surface

Claims

1. A measuring tape having a circular arc cross-section with a concave surface and a convex back surface, with length markings formed on the surface for measuring the length between two points on an object to be measured, and possessing inherent straight-line retention and winding retention properties based on the circular arc cross-section; a start-end slider and an end-end slider through which the measuring tape is inserted, maintaining the circular arc cross-section, and capable of sliding linearly between the start end and end ends of the measuring tape; a winding portion formed on the back side of the measuring tape by winding the end end of the measuring tape due to the inherent winding retention properties as the end-end slider slides toward the end end, and the winding portion at the end of the measuring tape is unwound and held linearly due to the inherent straight-line retention properties, and is disposed on the end-end slider and capable of suspending the winding portion of the measuring tape. A measuring tape comprising a suspension member, the suspension member having a pair of opposing guide portions capable of guiding both side edges of the measuring tape, and a suspension portion that is inserted through the core hole portion of the winding portion and capable of suspending the winding portion, the guide portion of the suspension member being pivotally connected to the end-side slider by a connecting shaft, the suspension member being arranged to swing freely between the back side direction of the measuring tape and the front side direction of the measuring tape with respect to the axis of the connecting shaft, and a positioning mechanism provided that allows the suspension member to be positioned at a guide position on the back side of the measuring tape and at a retracted position on the front side of the measuring tape, respectively, the positioning mechanism comprising a positioning projection formed on the end-side slider and a plurality of positioning holes formed on the guide portion of the suspension member that selectively engage with the positioning projection.

2. The measuring tape according to claim 1, characterized in that a movable claw member having a pressing surface for pressing against the measuring surface of the object to be measured and a hooking surface for hooking onto the measuring surface of the object to be measured is provided at the starting end of the measuring tape.

3. The measuring tape according to claim 2, characterized in that a permanent magnet is provided on the movable claw member.

4. The measuring tape according to claim 1, characterized in that a tilting member capable of pressing the surface of the measuring tape against the end slider is provided so as to be tiltable, and a tilting operation mechanism is provided that allows the surface of the measuring tape to be pressed and fixed and released by raising or lowering the tilting member.

5. The measuring tape according to claim 1, characterized in that a retaining pin is provided on the end side of the measuring tape, and a retaining portion is formed on the end side slider that can abut against the retaining pin.

6. The measuring tape according to claim 1, characterized in that permanent magnets are provided on the starting end slider and the ending end slider, respectively.

7. The measuring tape according to claim 1, characterized in that permanent magnets are disposed on the upper and lower surfaces of the starting end slider, permanent magnets are disposed on the upper and lower surfaces of the ending end slider, and length markings are formed on the front and back surfaces of the measuring tape.

8. The measuring tape according to claim 1, characterized in that a finger grip portion is formed on the starting end slider and the ending end slider, and a suspension hole portion is formed on the suspension member.

9. The measuring tape according to claim 1, characterized in that a plurality of the above-mentioned starting end sliders are provided, and the plurality of starting end sliders are arranged on the measuring tape so as to be attachable and detachable.

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