Measuring tape
By designing a tape measure with a concave surface and a convex back, along with a sliding mechanism, the portability and safety issues of the tape measure were solved, achieving lightweighting and miniaturization, and improving measurement accuracy and safety at construction sites.
Patent Information
- Application Number
- CN202511138622.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-08-17
- Filing Date
- 2025-08-14
- Publication Date
- 2026-03-03
AI Technical Summary
Existing measuring tapes have limitations in portability and storage when used on construction and civil engineering sites. Their weight and size also pose a burden and danger to workers when working at heights.
A measuring tape with a concave surface and a convex back is designed. The tape has a circular arc shape and is equipped with sliding parts on the beginning and end sides and a hanging component. The straightness and winding retention of the measuring tape are achieved by sliding the sliding parts. Combined with permanent magnets and anti-detachment pins, the tape is lightweight and miniaturized.
It improves the portability and storage of the measuring tape, reduces the burden of working at heights, avoids danger to workers, enhances safety, and can accurately measure the spacing and reinforcement status of steel bars.
Smart Images

Figure CN121594722A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a measuring tape, which is mainly used in determining the spacing between steel bars, taking photographs of the reinforcement status, and measuring the level at construction and civil engineering sites. Background Technology
[0002] In the past, when measuring the spacing between steel bars, taking photos of the reinforcement status, and measuring the level, a scale ruler or so-called ruler with graduations and numbers marked on the surface of long strip plates was used.
[0003] Patent Document 1: Japanese Patent Application Publication No. 59-56516
[0004] However, in the case of the aforementioned measuring tape, such as a long strip of wood or aluminum, portability and storage are poor. Alternatively, a so-called convex measuring tape consisting of a casing and a measuring tape strap can be used, but in the case of a convex measuring tape, the presence of the casing easily leads to weight and size, resulting in poor portability and storage. Due to its weight and size, it places a heavy burden on the operator when working at heights, and sometimes has various adverse conditions such as danger to the operator. Summary of the Invention
[0005] The purpose of this invention is to solve these problems. In this invention, technical solution 1 describes a measuring tape, characterized by comprising: a measuring tape strip formed with a concave surface and a convex back surface in the shape of a circular arc cross-section, with length graduations formed on the surface for measuring the length between two points of the object being measured; the measuring tape strip possessing inherent straight-line retention and winding retention properties based on the circular arc cross-section shape; a starting-end sliding member and a ending-end sliding member for inserting the measuring tape, maintaining the circular arc cross-section shape, and enabling straight-line movement between the starting and ending ends of the measuring tape. The measuring tape has a sliding mechanism and a lifting member. As the end-side sliding member slides toward the beginning-side, the end-side of the measuring tape is wound up with the inherent winding and holding properties, and a winding portion is formed on the back side of the measuring tape. As the end-side sliding member slides toward the end-side, the inherent straight-line holding properties cause the winding portion of the measuring tape at the end-side to unwind and remain straight. The lifting member is disposed on the end-side sliding member and is capable of lifting the winding portion of the measuring tape. Both the beginning-side sliding member and the end-side sliding member are designed to be freely detachable from the measuring tape.
[0006] Furthermore, the invention described in technical solution 2 is characterized in that a movable claw component is provided at the beginning end of the measuring tape, the movable claw component having a pressing surface that is pressed against the measuring surface of the object being measured and a hooking surface that is hooked onto the measuring surface of the object being measured. Furthermore, the invention described in technical solution 3 is characterized in that a permanent magnet is provided in the movable claw component.
[0007] Furthermore, the invention described in technical solution 4 is characterized in that the aforementioned terminal-side sliding member is provided with a stand-up and collapse member capable of pressing the surface of the aforementioned measuring tape in a manner that allows it to stand up and collapse freely, and is provided with a stand-up and collapse operation mechanism that allows the surface of the measuring tape to be pressed, fixed, released, or disengaged through the stand-up or collapse operation of the stand-up and collapse member.
[0008] Furthermore, the invention described in technical solution 5 is characterized in that the lifting member is pivotally connected to the terminal-side sliding member via a connecting shaft, and the lifting member is configured to swing freely between the back side direction and the surface side direction of the measuring tape with the axis of the connecting shaft as the center. Furthermore, the invention described in technical solution 6 is characterized in that the measuring tape has a positioning mechanism, which enables the lifting member to be positioned at a guide position on the back side of the measuring tape and a retracted position on the surface side of the measuring tape, respectively. Furthermore, the invention described in technical solution 7 is characterized in that the lifting member is formed by a cover portion covering the surface side of the winding portion of the measuring tape, a pair of opposing guide portions that can guide the two side edges of the measuring tape, and a lifting portion that is inserted into the core hole portion of the winding portion and can hold the winding portion.
[0009] Furthermore, the invention described in technical solution 8 is characterized in that an anti-detachment pin is provided on the end side of the measuring tape, and an anti-detachment part capable of abutting against the anti-detachment pin is formed on the end-side sliding member. Furthermore, the invention described in technical solution 9 is characterized in that permanent magnets are provided on the beginning-side sliding member and the end-side sliding member respectively. Furthermore, the invention described in technical solution 10 is characterized in that permanent magnets are provided on the upper surface and bottom surface of the beginning-side sliding member, and permanent magnets are provided on the upper surface and bottom surface of the end-side sliding member, and length markings are formed on the surface and back of the measuring tape.
[0010] Furthermore, the invention described in technical solution 11 is characterized in that a finger hook portion is formed on the aforementioned starting-end sliding member and the aforementioned ending-end sliding member respectively, and a hanging hole portion is formed on the aforementioned hanging member. Furthermore, the invention described in technical solution 12 is characterized in that the aforementioned measuring tape is provided with a plurality of the aforementioned starting-end sliding members, and the plurality of starting-end sliding members are disposed on the aforementioned measuring tape belt in a manner that allows for free assembly and disassembly.
[0011] As described above, in the invention described in technical solution 1, the end-side slider is slid towards the end-side. With this sliding towards the end-side, the inherent straight-line retention property unwinds the winding portion of the measuring tape at the end-side and keeps the measuring tape in a straight line. Furthermore, if the end-side of the measuring tape is folded towards the back side of the measuring tape, the inherent winding retention property based on the arc shape of the measuring tape's cross-section makes the measuring tape flat and winding. The end-side slider is then slid towards the beginning-side. With this sliding, the end-side of the measuring tape is wound into a flat cross-section shape by the inherent winding retention property, and a winding portion is formed on the back side of the measuring tape. Therefore, with the end-side… As the slider slides towards the beginning, the end of the measuring tape is wound up by the inherent winding and retaining property, forming a winding portion on the back side of the measuring tape. As the end-side slider slides towards the end, the inherent straight-line retaining property unwinds the winding portion at the end of the measuring tape and keeps it in a straight line. At this point, the measuring tape consists of the measuring tape, the beginning-side slider, the end-side slider, and the lifting component. Therefore, it can achieve lightweighting and miniaturization. Compared to a so-called convex measuring tape consisting of a shell and a measuring tape, it achieves greater lightweighting and miniaturization. Lightweighting and miniaturization improve portability and storage, reduce the burden on workers performing tasks at heights, avoid hazards to workers, and improve work efficiency. For safety in applications such as photography, the terminal-side slider is slid towards the terminal side. As it slides towards the terminal side, the inherent straight-line retention property based on the arc shape of the tape's cross-section allows the tape's terminal-side winding portion to unwind and maintain a straight shape. When not in use, such as during carrying, the terminal-side slider is slid towards the beginning side. As it slides towards the beginning side, the tape's terminal side winds in with a flat cross-section due to the inherent winding retention property based on the arc shape of the tape's cross-section, forming a winding portion on the back side of the tape. The sliding of the terminal-side slider allows for immediate correspondence between the used and unused states, and... The end-side slider has a lifting member capable of holding the winding portion of the measuring tape. Therefore, it can prevent the self-unwinding phenomenon, also known as sagging, caused by the weight of the winding portion of the measuring tape, thus enabling safe carrying of the measuring tape. Furthermore, both the beginning-side slider and the end-side slider are designed to be freely detachable from the measuring tape, allowing the measuring tape to detach from them. The measuring tape can be kept straight due to its inherent straightness retention based on the arc shape of its cross-section. For example, it can be used as a ruler for measuring height in horizontal measurements, reducing the burden on workers performing work at heights, avoiding danger to workers, and improving work safety.
[0012] Furthermore, in the invention described in technical solution 2, a movable claw component is provided at the beginning end of the measuring tape. This movable claw component has a pressing surface that is pressed against the measuring surface of the object being measured and a hooking surface that is hooked onto the measuring surface of the object being measured. Therefore, a pressing measurement can be performed by pressing the pressing surface against the measuring surface of the object being measured, or a hooking measurement can be performed by hooking the hooking surface onto the measuring surface of the object being measured. The movable claw component moves according to the pressing measurement and the hooking measurement, and the measurement can be easily performed by the movement of the movable claw component. In addition, in the invention described in technical solution 3, a permanent magnet is provided in the movable claw component. Therefore, the movable claw component can be fixed to the object being measured by the magnetic attraction of the permanent magnet, and a pressing measurement can be easily performed.
[0013] Furthermore, in the invention described in technical solution 4, the aforementioned terminal-side sliding member is provided with a stand-up and fall-down component capable of pressing the surface of the measuring tape in a freely uprighting and falling-down manner. A stand-up and fall-down operation mechanism is also provided, which can press and fix the surface of the measuring tape and release it through the stand-up or fall-down operation of the stand-up and fall-down component. Therefore, by performing the fall-down operation of the stand-up and fall-down component through the stand-up and fall-down operation mechanism, the surface of the measuring tape can be pressed and fixed, preventing the measuring tape from sliding towards the terminal side and the beginning side, preventing accidental slippage of the measuring tape, and facilitating measurement.
[0014] Furthermore, in the invention described in technical solution 5, the lifting member is pivotally connected to the terminal-side sliding member via a connecting shaft. The lifting member is configured to swing freely between the back side direction and the surface side direction of the measuring tape about the axis of the connecting shaft. Therefore, the lifting member can swing according to the diameter of the winding portion accompanying the winding and unwinding of the measuring tape, enabling smooth winding and unwinding of the measuring tape. For example, it can accurately measure and inspect the spacing between reinforcing bars and take photographs of the reinforcement status. In addition, in the invention described in technical solution 6, the measuring tape has a positioning mechanism that allows the lifting member to be positioned at a guide position on the back side of the measuring tape and a retracted position on the surface side of the measuring tape, respectively. Therefore, the lifting member can swing according to the diameter of the winding portion accompanying the winding and unwinding of the measuring tape at the guide position. It can smoothly wind up and unwind the measuring tape. The positioning mechanism can fix it in the guide position and the retraction position. When the end-side sliding member slides towards the end side of the measuring tape without the winding part, the bottom surface of the end-side sliding member can be pressed tightly against the object being measured by swinging the lifting member from the guide position to the retraction position. For example, it can be pressed tightly against multiple steel bars, and can accurately measure and inspect the spacing between steel bars and take pictures of the reinforcement status. In addition, in the invention described in technical solution 7, the lifting member is formed by a cover covering the surface side of the winding part of the measuring tape, a pair of opposing guide parts that can guide the two side edges of the measuring tape, and a core hole that is inserted into the winding part and can hold the winding part. Therefore, the cover and guide parts of the lifting member can protect the surface and the two side edges of the winding part from external forces.
[0015] Furthermore, in the invention described in technical solution 8, an anti-detachment pin is provided on the end side of the measuring tape, and an anti-detachment part capable of abutting against the anti-detachment pin is formed on the end-side sliding member. Therefore, it is possible to prevent the measuring tape from detaching from the end-side sliding member. This, combined with the anti-detachment function of the beginning-side sliding member based on the moving claw component, prevents the measuring tape from detaching from both the beginning-side and end-side sliding members. Furthermore, in the invention described in technical solution 9, permanent magnets are provided on both the beginning-side and end-side sliding members. Therefore, the magnetic attraction of the permanent magnets allows the beginning-side and end-side sliding members to be fixed to the object being measured, such as reinforcing bars, easily and accurately measuring and inspecting the spacing between reinforcing bars and taking photographs of the reinforcement status. Furthermore, in technical solution 10… In the invention described above, permanent magnets are provided on the upper and lower surfaces of the starting-side sliding member and the terminal-side sliding member. Length graduations are formed on the surface and back of the measuring tape. Therefore, the measuring tape can be fixed to the object being measured, such as a reinforcing bar, by the magnetic attraction of the permanent magnets on the upper and lower surfaces of the starting and terminal-side sliding members or the bottom and back surfaces of the starting and terminal-side sliding members. The length graduations on the surface or back of the measuring tape can be viewed. Furthermore, the measuring tape can be fixed to the object being measured, such as a reinforcing bar, by the permanent magnets on the upper and lower surfaces of the starting and terminal-side sliding members, making it easy and accurate to measure and inspect the spacing between reinforcing bars and to take photographs of the reinforcement status.
[0016] Furthermore, in the invention described in technical solution 11, finger hook portions are formed on the aforementioned starting-side sliding member and the aforementioned ending-side sliding member, and hanging holes are formed on the aforementioned hanging member. Therefore, the starting-side sliding member and the ending-side sliding member can be easily slid by means of the finger hook portions, and hanging members such as carabiners can be fixed in the hanging holes. The measuring tape can be hung on the waist belt worn by the operator by means of the hanging members, which can improve workability and portability. In addition, in the invention described in technical solution 12, multiple aforementioned starting-side sliding members are prepared, and multiple starting-side sliding members are freely assembled and disassembled on the aforementioned measuring tape. Therefore, the measuring tape can be reliably fixed in position to the object being measured by means of multiple starting-side sliding members. For example, the measuring tape can be reliably fixed in position to multiple steel bars arranged in the longitudinal and transverse directions, and the spacing between steel bars can be measured, inspected, and photographed easily and accurately. Attached Figure Description
[0017] Figure 1 This is an overall perspective view of an embodiment of the present invention.
[0018] Figure 2 This is an overall side view of an embodiment of the present invention.
[0019] Figure 3 This is an overall top view of an embodiment of the present invention.
[0020] Figure 4 This is an overall perspective view of an embodiment of the present invention.
[0021] Figure 5 This is an exploded perspective view of an embodiment of the present invention.
[0022] Figure 6 This is an overall side sectional view of an embodiment of the present invention.
[0023] Figure 7 This is an overall cross-sectional view of an embodiment of the present invention.
[0024] Figure 8 This is a partial side sectional view of an embodiment of the present invention.
[0025] Figure 9 This is a partial side sectional view of an embodiment of the present invention.
[0026] Figure 10 This is a partial top view of an embodiment of the present invention.
[0027] Figure 11 This is a partial side sectional view of an embodiment of the present invention.
[0028] Figure 12 This is a partial top view of an embodiment of the present invention.
[0029] Figure 13 This is a partial side sectional view of an embodiment of the present invention.
[0030] Figure 14 These are explanatory diagrams illustrating embodiments of the present invention.
[0031] Figure 15 This is an explanatory diagram illustrating the usage state of an embodiment of the present invention.
[0032] Figure 16 These are explanatory diagrams illustrating other usage states of embodiments of the present invention.
[0033] Figure 17 This is a side sectional view of another usage state of an embodiment of the present invention.
[0034] Explanation of reference numerals in the attached figures
[0035] SK: Measuring tape; G: Object being measured; G1: Measuring surface; G2: Measuring surface; GP: Guide position; EP: Retreat position; M: Length scale; S: Beginning side; E: End side; I: Winding section; IH: Core hole section; T: Stand-up / fold-down operating mechanism; D: Positioning mechanism; MG: Permanent magnet; NP: Anti-detachment pin; O: Axis; 1: Measuring tape strip; 1a: Surface; 1b: Back side; 1c: Side edges; 2 1. Initial side sliding component; 2QU: Upper surface; 2QS: Bottom surface; 2Y: Finger hook part; 3. Terminal side sliding component; 3bT: Anti-detachment part; 3QU: Upper surface; 3QS: Bottom surface; 3J: Connecting shaft; 3Y: Finger hook part; 4. Lifting component; 4a: Cover part; 4b: Guide part; 4c: Lifting part; 4e: Lifting hole part; 5. Standing up and falling down component; 6. Moving claw component; 6a: Pressing surface; 6b: Hook surface. Detailed Implementation
[0036] Figures 1 to 17 This invention illustrates an embodiment example, where 1 is a measuring tape. In this case, it is made of metal, with a width of 30 mm and a length of 210 cm. Figure 1 , Figure 4 In this way, a cross-sectional arc shape is formed with a concave surface 1a and a convex back surface 1b. For example, by continuous rolling molding, a length scale M for measuring the length between two points of the object being measured G is formed on the surface 1a. The measuring tape 1 is endowed with the inherent straightness retention and roll-up retention based on the aforementioned cross-sectional arc shape.
[0037] 2 is the starting side sliding member, and 3 is the ending side sliding member. In this case, both are made of synthetic resin, such as... Figure 4 , Figure 5 Thus, arc-shaped insertion holes 2H and 3H are formed on the beginning-side sliding member 2 and the end-side sliding member 3, respectively. The bottom surfaces 2QS and 3QS of the beginning-side sliding member 2 and the end-side sliding member 3 are formed as contact surfaces that abut against the object to be measured G. A measuring tape 1 is inserted through the insertion holes 2H and 3H. The arc-shaped cross-section of the measuring tape 1 is maintained by inserting it through the insertion holes 2H and 3H, and it is configured to slide linearly between the beginning-side S and the end-side E of the measuring tape 1.
[0038] However, as Figure 2 Thus, as the terminal-side slider 3 slides toward the starting end S, the terminal side E of the measuring tape 1 is wound up based on the inherent winding retention property, and a winding portion I is formed on the back side 1b of the measuring tape 1. Conversely, as the terminal-side slider 3 slides toward the terminal side E, the winding portion I of the terminal side E of the measuring tape 1 is maintained in the aforementioned cross-sectional arc shape and in a straight line based on the inherent straight line retention property.
[0039] 4 is the lifting component, which in this case is made of synthetic resin, such as... Figure 1 , Figure 6 Thus, the winding part I, which is provided on the terminal side sliding member 3 and is formed to hold the tape measure 1, constitutes the tape measure SK by the tape measure 1, the starting side sliding member 2, the terminal side sliding member 3 and the holding member 4.
[0040] Furthermore, in this case, such as Figure 4 , Figure 5 Thus, both the aforementioned starting-side sliding member 2 and the aforementioned ending-side sliding member 3 are designed to be freely assembled and detached from the aforementioned measuring tape 1. Regarding the aforementioned starting-side sliding member 2, as... Figure 2 , Figure 4 , Figure 5 , Figure 7 Thus, the aforementioned initial side sliding member 2 is composed of two interlocking components, a lower frame 2a and an upper frame 2b. An insertion hole 2H is formed between the two opposing wall portions 2aK, 2aK of the lower frame 2a and the two wall portions 2bK, 2bK of the upper frame 2b. Two side portions 2bS, 2bS are formed on the upper frame 2b, and locking slots 2bM, 2bM are formed on the two side portions 2bS, 2bS. Two side portions 2aS, 2aS are formed on the lower frame 2a, and locking slots 2bM, 2bM are formed on the two side portions 2aS. 2aS has locking protrusions 2aD and 2aD that can be inserted into and disengaged from locking slots 2bM and 2bM. An insertion slot 2aC is formed at the bottom of the lower frame 2a, into which a prying component C such as a coin can be inserted. The prying component C is inserted into the insertion slot 2aC to pry open an opening on one side 2bS of the upper frame 2b. However, by disassembling and detaching the lower frame 2a and the upper frame 2b of the aforementioned starting side sliding member 2, the starting side sliding member 2 is configured to be freely assembled and disassembled from the aforementioned measuring tape 1.
[0041] Furthermore, regarding the aforementioned terminal-side sliding member 3, such as Figure 4 , Figure 5Thus, the aforementioned terminal-side sliding member 3 is composed of two interlocking components: a lower frame 3a and an upper frame 3b. An insertion hole 3H is formed 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, creating an opposing gap. Two side portions 3bS, 3bS are formed on the upper frame 3b, with a locking groove 3bM formed on one side portion 3bS. Two side portions 3aS, 3aS are formed on the lower frame 3a, with one side portion 3aS connected by a pivot 3. bJ connects one side 3bS of the upper frame 3b to be freely openable and closable, and forms a locking protrusion 3aD on the other side 3aS that can be inserted into and disengaged from the locking slot 3bM. However, the upper frame 3b is made to be freely openable and closable with the axis O1 of the pivot 3bJ as the center, and the locking slot 3bM and the locking protrusion 3aD are made to be freely inserted into and disengaged. By opening and closing the lower frame 3a and the upper frame 3b to each other, the terminal side slider 3 is set to be freely assembled and disassembled from the tape measure 1.
[0042] 5 is the erection / lowering component, and T is the erection / lowering operating mechanism. In this case, such as... Figure 4 , Figure 5 Thus, a fitting hole 3bH is formed in the upper frame 3b of the aforementioned terminal-side sliding member 3, and a pair of opposing bearing slots 3bG, 3bG are formed in the fitting hole 3bH. Pivots 5J, 5J are formed in the upright / falling member 5 that can be axially connected to the bearing slots 3bG, 3bG, as shown. Figure 4 , Figure 5 , Figure 8 , Figure 9 Thus, the erecting and collapsing component 5 is configured to operate freely in either erection or collapse with the axis O2 of the pivot 5J as the center, and the sliding member 3 on the end side has stop portions 3cS, 3cS of the erecting and collapsing component 5, such as Figures 8 to 9 In this way, the uprighting and lowering mechanism T performs a lowering operation on the uprighting and lowering component 5. At this time, considering the distance and positional relationship between the pivot 5J, the axis O2 of 5J, which is the rotation center of the uprighting and lowering component 5, and the pressing point of the measuring tape 1 generated by the uprighting and lowering component 5, the surface 1a of the measuring tape 1 is pressed and the back side 1b of the measuring tape 1 is pressed and fixed to the wall portion 3aK at the center position of the lower frame 3a. In addition, as Figures 9 to 8 In this way, the uprighting and crouching operation mechanism T is used to perform an uprighting operation on the uprighting and crouching component 5, thereby enabling the pressing of the surface 1a of the measuring tape 1 to be released.
[0043] Furthermore, in this case, for the lifting component 4, such as Figure 2 , Figure 4 , Figure 5 , Figure 6Thus, the lifting member 4 is pivotally connected to the aforementioned terminal-side sliding member 3 via the connecting shaft 3J, and is configured to swing freely between the back side 1b side direction and the surface side 1a side direction of the measuring tape 1 with the axis O of the connecting shaft 3J as the center. Furthermore, in this case, as... Figure 2 Thus, the device is configured to have a positioning mechanism D, which enables the lifting member 4 to be positioned at a guide position GP, which is the back side 1b side of the measuring tape 1, and a position that protrudes from the plane F, including the bottom surface 3QS of the terminal sliding member 3, toward the back side 1b side of the measuring tape 1, and a retraction position EP, which is the surface side 1a side of the measuring tape 1, and a position that protrudes from the plane F, including the bottom surface 3QS of the terminal sliding member 3, toward the surface side 1a side of the measuring tape 1.
[0044] In this case, such as Figure 4 , Figure 5 , Figure 6 Thus, the aforementioned lifting member 4 is formed by a cover portion 4a covering the surface side of the winding portion I of the aforementioned measuring tape 1, a pair of opposing guide portions 4b, 4b that can guide the two side edge portions 1c, 1c of the measuring tape 1, and a lifting portion 4c that is inserted into the core hole portion IH of the winding portion I and can lift the winding portion I.
[0045] In this case, such as Figure 4 , Figure 5 , Figure 6 Thus, as the aforementioned positioning mechanism D, support plates 3d and 3d are formed on both sides of the terminal side E of the terminal sliding member 3, and positioning protrusions 3e are formed on the outer surfaces of the support plates 3d and 3d. Two positioning holes 4f and 4f are formed on the guide portions 4b and 4b of the lifting member 4, which selectively engage with the positioning protrusions 3e, so that the lifting member 4 swings between the guide position GP and the retraction position EP with the axis O of the connecting shaft 3J as the center. The guide position GP and the retraction position EP are configured such that the lifting member 4 is positioned at the guide position GP or the retraction position EP by engaging the positioning protrusions 3e with either of the positioning holes 4f and 4f.
[0046] In this case, such as Figure 10 , Figure 12Thus, a moving claw member 6 is provided on the starting end side S of the aforementioned measuring tape 1, having a pressing surface 6a pressed against the measuring surface G1 of the object being measured G and a hooking surface 6b hooked onto the measuring surface G2 of the object being measured G. The moving claw member 6 has upper claw portions 6f and 6f protruding towards the surface 1a side of the measuring tape 1, and a lower claw portion 6g protruding towards the back side 1b side of the measuring tape 1. For the upper claw portions 6f and 6f, and the lower claw portion 6g, when the upper surfaces 2QU and 3QU of the starting side sliding member 2 and the lower surface 2QS and 3QS of the starting side sliding member 2 and the lower surface sliding member 3 are fixed to the object being measured G by the permanent magnet MG, the upper claw portions 6f and 6f or the lower claw portion 6g are used to hook and measure on the measuring surface G2 of the object being measured G. Figure 5 , Figure 10 , Figure 11 , Figure 12 , Figure 13 In this configuration, the movable claw component 6 is hook-shaped and is designed to move freely relative to the measuring tape 1 via the zero-point correction mechanism Z, based on the difference between the measurement base points of the pressing surface 6a and the hook surface 6b. In this case, the pressing plate 6c is fixed to the measuring tape 1 by four rivets 6d, 6d, 6d, 6d. Three rivets 6d, 6d, 6d are fixed to the measuring tape 1 and the pressing plate 6c, allowing them to slide freely into the three elongated holes 6e, 6e, 6e formed in the movable claw component 6. The permanent magnet MG protrudes from the beginning side of the movable claw component 6 and is disposed on the same surface as the rear end side of the movable claw component 6. Therefore, the pressing surface 6a is the beginning side of the permanent magnet MG. Alternatively, there may be a structure where the movable claw component 6 does not have the aforementioned permanent magnet MG. In this case, the pressing surface 6a is the beginning side of the movable claw component 6.
[0047] In this case, such as Figure 5 , Figure 6 Thus, the tape measure 1 is configured such that an anti-detachment pin NP is provided on the end side E of the tape measure 1, and an anti-detachment part 3bT is formed on the end side sliding member 3 that can abut against the anti-detachment pin NP. The tape measure 1 is prevented from detaching from the beginning side S by the contact between the anti-detachment pin NP on the end side E of the tape measure 1 and the anti-detachment part 3bT on the end side sliding member 3.
[0048] In this case, such as Figure 1 Thus, permanent magnets MG are respectively provided on the aforementioned starting-side sliding member 2 and the aforementioned ending-side sliding member 3, and in this case, as Figure 4 , Figure 6 , Figure 7Thus, a permanent magnet MG is provided on the upper surface 2QU and bottom surface 2QS of the aforementioned starting-side sliding member 2, and a permanent magnet MG is provided on the upper surface 3QU and bottom surface 3QS of the aforementioned ending-side sliding member 3. Length graduations M are formed on the surface 1a and back surface 1b of the aforementioned measuring tape 1. Furthermore, in this case, as... Figure 4 , Figure 14 Thus, a vertical scale MT for measuring the length dimension (height dimension) in the vertical direction is formed on the surface 1a of the tape measure 1, and a horizontal scale MY for measuring the length dimension in the horizontal direction is formed on the back side 1b of the tape measure 1.
[0049] Furthermore, in this case, such as Figure 1 , Figure 3 Thus, finger hook portions 2Y and 3Y are formed on the aforementioned starting side sliding member 2 and the aforementioned terminal side sliding member 3, respectively, and a hanging hole portion 4e is formed on the protruding piece portion 4d of the aforementioned lifting member 4.
[0050] Furthermore, in this case, such as Figure 16 , Figure 17 In this way, multiple such beginning-side sliding members 2 are prepared, and the tape measure 1 is configured to be detachably and freely disposed of with multiple beginning-side sliding members 2...
[0051] This embodiment example is configured as described above; therefore, as from... Figure 1 , Figure 2 The state to Figure 4 In that state, the end-side slider 3 slides towards the end-side E. With this sliding towards the end-side E, the inherent straight-line retention of the measuring tape 1 causes the winding portion I at the end-side E to unwind, keeping the measuring tape 1 in a straight line. Furthermore, in... Figure 4 In this state, if the end side E of the measuring tape 1 is folded towards the back side 1b of the measuring tape 1, the inherent winding retention property based on the arc shape of the measuring tape 1's cross-section allows the measuring tape 1 to be wound in such a way that its cross-section becomes flat, and the aforementioned end-side slider 3 slides towards the beginning side S. As the end-side slider 3 slides towards the beginning side S, as... Figure 1 , Figure 2 In this way, the end side E of the measuring tape 1 is wound in a flat cross-section shape based on the aforementioned inherent winding and holding property, and a winding portion I is formed on the back side 1b of the measuring tape 1. Therefore, as the end side slider 3 slides in the direction of the beginning side S, the end side E of the measuring tape 1 is wound in by the aforementioned inherent winding and holding property, and a winding portion I is formed on the back side 1b of the measuring tape 1. As the end side slider 3 slides in the direction of the end side E, the winding portion I of the end side E of the measuring tape 1 is unwound and held in a straight line by the aforementioned inherent straight line holding property.
[0052] At this time, as Figure 1 Thus, the measuring tape SK is composed of a measuring tape strap 1, a starting-side sliding member 2, a ending-side sliding member 3, and a lifting component 4. Therefore, it achieves lightweighting and miniaturization. Compared to a so-called convex measuring tape consisting of a casing and a measuring tape strap, it achieves greater lightweighting and miniaturization. This lightweighting and miniaturization improves portability and storage, reduces the burden on workers performing tasks at heights, avoids dangers to workers, and improves operational safety. Furthermore, during photography or other applications, the ending-side sliding member 3 slides towards the ending-side E. With this sliding towards the ending-side E, the measuring tape SK utilizes the aforementioned measuring tape strap... The inherent straight-line retention property of the arc-shaped cross-section of the measuring tape 1 allows the tape 1 to remain straight even after unwinding the winding portion I at the end side E. When not in use, such as during carrying, the end-side slider 3 slides towards the beginning side S. As the end-side slider 3 slides towards the beginning side S, the end side E of the measuring tape 1, based on the inherent winding-in retention property of the arc-shaped cross-section of the measuring tape 1, winds in a flat cross-section, forming the winding portion I on the back side 1b of the measuring tape 1. The sliding of the end-side slider 3 immediately corresponds to the state of use or non-use. Thus, for example, as... Figure 16 , Figure 17 In this way, the workability of measuring and inspecting the spacing P between steel bars RB... and taking photographs of the reinforcement status can be significantly improved. Furthermore, the inherent winding and holding properties based on the arc shape of the cross-section of the measuring tape 1 can form a winding part I on the back side 1b of the measuring tape 1, which can improve the portability and storage of the measuring tape SK, reduce the burden on workers engaged in high-altitude work, avoid danger to workers, and improve work safety. The end-side sliding member 3 has a lifting member 4 that can hold the winding part I of the measuring tape 1. Therefore, the self-unwinding phenomenon caused by the weight of the winding part I of the measuring tape 1, known as the sagging phenomenon, can be prevented, and the measuring tape SK can be carried safely.
[0053] And, at this time, such as Figure 5 Thus, both the aforementioned starting-side sliding member 2 and the aforementioned ending-side sliding member 3 are designed to be freely detachable from the aforementioned measuring tape 1. Therefore, the measuring tape 1 can be detached from the aforementioned starting-side sliding member 2 and the aforementioned ending-side sliding member 3, such as... Figure 14 In this way, the measuring tape 1 can maintain its straightness by virtue of the inherent straightness retention property generated by the cross-sectional arc shape, for example, as... Figure 15 In that way, it can be used as a ruler to determine the height dimension in horizontal measurements.
[0054] In this case, such as Figure 10 , Figure 12Thus, a moving claw member 6 is provided at the beginning end S of the tape measure 1, having a pressing surface 6a that is pressed against the measuring surface G1 of the object being measured G and a hooking surface 6b that is hooked onto the measuring surface G2 of the object being measured G. Therefore, as Figure 10 , Figure 11 In this way, a pressing measurement can be performed by pressing the pressing surface 6a onto the measuring surface G1 of the object being measured G. Furthermore, as... Figure 12 , Figure 13 In this way, hooking measurement can be performed by hooking the hook surface 6b onto the measuring surface G2 of the object being measured G. Furthermore, in this case, such as... Figure 10 , Figure 11 , Figure 12 , Figure 13 In this way, the moving claw component 6 is configured to move freely relative to the tape measure 1 by the difference between the respective measurement base points of the pressing surface 6a and the hook surface 6b via the zero-point correction mechanism Z. Therefore, the moving claw component 6 moves in accordance with the pressing measurement and the hook measurement, and the measurement can be easily performed by moving the moving claw component 6.
[0055] Furthermore, in this case, such as Figure 1 , Figure 10 Therefore, a permanent magnet MG is provided in the aforementioned moving claw component 6. Thus, the magnetic attraction of the permanent magnet MG allows the moving claw component 6 to be fixed to the object G being measured, making pressure measurement easy. Furthermore, in this case, as... Figure 4 , Figure 8 , Figure 9 Thus, the aforementioned terminal-side sliding member 3 is provided with a stand-up and fall-down member 5 that can press against the surface 1a of the measuring tape 1 in a freely uprighting and falling-down manner. Based on the provision of a stand-up and fall-down operation mechanism T that can press and fix the surface 1a of the measuring tape 1 and release it through the stand-up or fall-down operation of the stand-up and fall-down member 5, the stand-up and fall-down member 5 can be fall-down through the stand-up and fall-down operation mechanism T to press and fix the surface 1a of the measuring tape 1, which can prevent the measuring tape 1 from sliding towards the terminal side E and the starting side S, can prevent the measuring tape 1 from sliding accidentally, and can be easily measured.
[0056] Furthermore, in this case, such as Figure 2 , Figure 4 , Figure 5 , Figure 6Thus, the aforementioned lifting component 4 is pivotally connected to the aforementioned terminal-side sliding member 3 via the connecting shaft 3J. The lifting component 4 is configured to swing freely between the back side 1b side and the surface side 1a side of the aforementioned measuring tape 1 with the axis O of the connecting shaft 3J as the center. Therefore, the lifting component 4 can swing according to the diameter of the winding part I accompanying the winding and unwinding of the measuring tape 1, and can smoothly wind and unwind the measuring tape 1. For example, it can accurately measure and inspect the interval P between the reinforcing bars RB... and take photographs of the reinforcement status. Furthermore, in this case, such as Figure 2 Thus, having a positioning mechanism D that allows the lifting member 4 to be positioned at the guide position GP on the back side 1b of the measuring tape 1 and the retraction position EP on the surface side 1a of the measuring tape 1, the lifting member 4 can swing according to the diameter of the winding portion I accompanying the winding and unwinding of the measuring tape 1 at the guide position GP, enabling smooth winding and unwinding of the measuring tape 1. Furthermore, it can be positioned and fixed at the guide position GP and the retraction position EP by the positioning mechanism D. Additionally, for example, as... Figure 2 As imagined, with the end-side slider 3 sliding to the end side E of the measuring tape 1 without any winding portion I, the bottom surface 3QS of the end-side slider 3 can be pressed tightly against the object being measured G by swinging the holding member 4 from the guide position GP to the retracted position EP. For example, as... Figure 16 , Figure 17 In this way, it is possible to closely attach to multiple reinforcing bars RB..., accurately measure and inspect the interval P between reinforcing bars RB..., and take photographs of the reinforcement condition, etc. Furthermore, in this situation, such as... Figure 4 , Figure 5 , Figure 6 Thus, the aforementioned lifting member 4 is formed by a cover portion 4a covering the surface side of the winding portion I of the measuring tape 1, a pair of opposing guide portions 4b, 4b that can guide the two side edges 1c, 1c of the measuring tape 1, and a lifting portion 4c that is inserted into the core hole portion IH of the winding portion I and can lift the winding portion I. Therefore, the cover portion 4a and the guide portions 4b, 4b of the lifting member 4 can protect the surface of the winding portion I and the two side edges 1c, 1c from external forces.
[0057] Furthermore, in this case, such as Figure 5 , Figure 6 Thus, an anti-detachment pin NP is provided on the end side E of the aforementioned measuring tape 1, and an anti-detachment part 3bT is formed on the end side slider 3 that can abut against the anti-detachment pin NP. Therefore, it is possible to prevent the measuring tape 1 from detaching from the end side slider 3. It is possible to prevent the measuring tape 1 from detaching from both the beginning side slider 2 and the end side slider 3 in combination with the anti-detachment function of the beginning side slider 2 based on the moving claw member 6. Furthermore, in this case, as Figure 1Thus, permanent magnets MG are respectively provided on the starting-side sliding member 2 and the ending-side sliding member 3... Therefore, the magnetic attraction of the permanent magnets MG can cause the starting-side sliding member 2 and the ending-side sliding member 3 to, for example... Figure 16 By fixing it to the object being measured, such as the reinforcing bar RB, it is possible to easily and accurately measure and inspect the interval P between the reinforcing bars RB... and take photographs of the reinforcement condition. Furthermore, in this case, such as... Figure 4 , Figure 6 , Figure 7 Thus, a permanent magnet MG is provided on the upper surface 2QU and the bottom surface 2QS of the aforementioned starting-side sliding member 2, and a permanent magnet MG is provided on the upper surface 3QU and the bottom surface 3QS of the aforementioned ending-side sliding member 3. Length markings M are formed on the surface 1a and the back surface 1b of the aforementioned measuring tape 1. Therefore, the permanent magnet MG on the upper surface 2QU of the starting-side sliding member 2 and the upper surface 3QU of the aforementioned ending-side sliding member 3, or the permanent magnet MG on the bottom surface 2QS of the starting-side sliding member 2 and the bottom surface 3QU of the aforementioned ending-side sliding member 3, allows for the measurement of the length of the tape. The magnetic attraction of S allows it to be fixed to the object G being measured, such as steel bar RB. The length scale M on the surface 1a or back 1b of the measuring tape 1 can be viewed. However, the permanent magnets MG on the upper surface 2QU and bottom surface 2QS of the starting side sliding member 2 and the upper surface 3QU and bottom surface 3QS of the aforementioned terminal side sliding member 3 can fix the measuring tape SK to the object G being measured, such as steel bar RB. This allows for easy and accurate measurement and inspection of the interval P between steel bars RB, as well as photographing of the reinforcement status.
[0058] Furthermore, in this case, such as Figure 1 , Figure 3 Thus, finger hook portions 2Y and 3Y are formed on the aforementioned starting-side sliding member 2 and the aforementioned ending-side sliding member 3, respectively, and a hanging hole portion 4e is formed on the aforementioned lifting member 4. Therefore, the starting-side sliding member 2 and the ending-side sliding member 3 can be easily slid through the finger hook portions 2Y and 3Y, and a suspension component such as a carabiner can be fixed in the hanging hole portion 4e. The measuring tape SK can be suspended from the worker's belt or similar items through the suspension component, improving workability and portability. Furthermore, in this case, such as Figure 16 , Figure 17 In this way, multiple starting side sliding members 2 are prepared, and multiple starting side sliding members 2 are freely disposed on the tape measure 1. The tape measure SK can be reliably fixed to the object being measured G by the multiple starting side sliding members 2. For example, the tape measure SK can be reliably fixed to multiple steel bars RB arranged in the longitudinal and transverse directions. The interval P between steel bars RB can be easily and accurately measured, inspected, and photographed to capture the reinforcement status.
[0059] Furthermore, the present invention is not limited to the above-described embodiments. The structure and manner of the erection and collapse operation mechanism T, positioning mechanism D, measuring tape 1, surface 1a, back surface 1b, length scale M, longitudinal scale MT, transverse scale MY, beginning side sliding member 2, end side sliding member 3, lifting component 4, erection and collapse component 5, and moving claw component 6 can be appropriately modified and designed.
[0060] Based on the above, the desired purpose can be fully achieved.
Claims
1. A measuring tape, characterized in that, have: The measuring tape is formed into a cross-sectional arc shape with a concave surface and a convex back surface. Length graduations are formed on the surface for measuring the length between two points of the object being measured. The measuring tape has inherent straightness retention and roll-up retention based on the cross-sectional arc shape. The starting-end sliding member and the ending-end sliding member are for the tape measure to be inserted through, maintain the arc shape of the cross section, and be able to slide linearly between the starting-end and ending-end sides of the tape measure; as well as The lifting component, as the end-side slider slides towards the beginning-side, forms a wound portion on the back side of the measuring tape at the end side based on the inherent winding and holding property. As the end-side slider slides towards the end side, the inherent straight-line holding property unwinds the wound portion at the end side of the measuring tape and holds it in a straight line. The lifting component is disposed on the end-side slider and is capable of lifting the wound portion of the measuring tape. Both the starting-side sliding member and the ending-side sliding member are designed to be freely detachable from the measuring tape.
2. The measuring tape according to claim 1, characterized in that, A movable claw component is provided at the beginning end of the measuring tape. The movable claw component has a pressing surface that is pressed against the measuring surface of the object being measured and a hooking surface that is hooked onto the measuring surface of the object being measured.
3. The measuring tape according to claim 2, characterized in that, The moving claw component is equipped with a permanent magnet.
4. The measuring tape according to claim 1, characterized in that, The terminal-side sliding member is provided with a stand-up and collapse component that can press against the surface of the measuring tape in a freely upright and collapse manner, and is provided with a stand-up and collapse operation mechanism that can press against and fix the surface of the measuring tape and release it through the stand-up or collapse operation of the stand-up and collapse component.
5. The measuring tape according to claim 1, characterized in that, The lifting component is pivotally connected to the terminal-side sliding member via a connecting shaft. The lifting component is configured to swing freely between the back side direction and the front side direction of the measuring tape with the axis of the connecting shaft as the center.
6. The measuring tape according to claim 5, characterized in that, The measuring tape has a positioning mechanism that enables the lifting component to be positioned in a guide position on the back side of the measuring tape and a retracted position on the surface side of the measuring tape, respectively.
7. The measuring tape according to claim 1, characterized in that, The lifting member is formed by a cover portion covering the surface side of the winding portion of the measuring tape, a pair of opposing guide portions that can guide the two side edges of the measuring tape, and a lifting portion that is inserted into the core hole portion of the winding portion and can lift the winding portion.
8. The measuring tape according to claim 1, characterized in that, An anti-detachment pin is provided on the end side of the measuring tape, and an anti-detachment part is formed on the end side sliding member that can abut against the anti-detachment pin.
9. The measuring tape according to claim 1, characterized in that, Permanent magnets are respectively provided on the starting side slider and the ending side slider.
10. The measuring tape according to claim 1, characterized in that, Permanent magnets are provided on the upper and lower surfaces of the starting side sliding member and the end side sliding member, and length scales are formed on the surface and back of the measuring tape.
11. The measuring tape according to claim 1, characterized in that, Hook portions are formed on the starting side slider and the ending side slider, respectively, and hanging holes are formed on the lifting component.
12. The measuring tape according to claim 1, characterized in that, The measuring tape is equipped with a plurality of beginning-side sliding members, which are detachably disposed from the measuring tape.
Citation Information
Patent Citations
As with color photographic recording arrangement inspection survey · pitch staff
JP1984056516U