JP2002202214A - Screw detaining force measuring device - Google Patents
Screw detaining force measuring deviceInfo
- Publication number
- JP2002202214A JP2002202214A JP2000398384A JP2000398384A JP2002202214A JP 2002202214 A JP2002202214 A JP 2002202214A JP 2000398384 A JP2000398384 A JP 2000398384A JP 2000398384 A JP2000398384 A JP 2000398384A JP 2002202214 A JP2002202214 A JP 2002202214A
- Authority
- JP
- Japan
- Prior art keywords
- screw
- measuring device
- lever plate
- retaining force
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
- Electric Cable Installation (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はねじの引留め力測定
器に関し、特に、家屋の外壁部材などにねじ込まれたね
じが必要な引き抜け抵抗力を有しているかどうかを測定
し、家屋の外壁にねじ留めして使用する架空線路設備の
保全を図るためのねじの引留め力測定器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screw retaining force measuring instrument, and more particularly, to measuring whether or not a screw screwed into an outer wall member of a house has a necessary pull-out resistance, and measuring the force of the house. The present invention relates to a screw retaining force measuring device for maintaining overhead line equipment that is used by being screwed to an outer wall.
【０００２】[0002]
【従来の技術】従来、日本の電信電話会社では、家屋に
電話引込線を設置する際に、特定の金具、例えば、Ｃ形
金物と呼ばれる引込線取付金具を、家屋の外壁部に取り
付けて電話線をこれに引き留めることを行っている。こ
の引込線取付金具は一般に、家屋の外壁にねじによって
取り付けられる。そして、電話引込線を引き留めた状態
の引込線取付金具は、風や積雪等によって電話引込線に
引っ張り力が作用しても外壁から引き抜かれないように
外壁に取り付けられなければならない。2. Description of the Related Art Conventionally, a Japanese telegraph and telephone company installs a telephone cable into a house by attaching a specific metal fitting, for example, a cable-type fitting called a C-shaped metal fitting to an outer wall portion of the house to connect the telephone line. I'm going to detain it. This drop wire fitting is generally attached to the outer wall of a house by screws. Then, the drop-in wire mounting bracket in a state where the telephone drop-in wire is retained must be attached to the outer wall so that the wire is not pulled out from the outer wall even if a pulling force acts on the telephone drop-in wire due to wind, snow, or the like.
【０００３】このとき、ねじ留めによる引込線取付金具
の引留め力の大きさを左右する要因として、家屋の外壁
材、外壁に埋め込んで使用するプラグやねじの種類が挙
げられる。例えば、家屋の外壁が木材のときは、引込線
取付金具を直接外壁にねじ留めしても、電話引込線の引
っ張り力に対して十分な引留め力を発生させることがで
きる。At this time, factors that influence the magnitude of the retaining force of the drop-in fittings by screwing include the outer wall material of the house and the types of plugs and screws used by being embedded in the outer wall. For example, when the outer wall of the house is made of wood, even if the drop-in fitting is directly screwed to the outer wall, a sufficient retaining force against the pulling force of the telephone drop-in can be generated.
【０００４】一方、家屋の外壁材としては、コンクリー
ト、モルタルレンガ、軽量気泡コンクリート、石膏ボー
ド等、木材以外にも種々の建材があり、これらの建材は
材質により強度が一定でない。また、外壁材は塗装、タ
イル、シート等で覆われていることもあり、外壁材自体
の特定が困難な場合もある。[0004] On the other hand, there are various building materials other than wood, such as concrete, mortar brick, lightweight cellular concrete, and gypsum board, as the outer wall material of a house, and the strength of these building materials is not constant depending on the material. Further, the outer wall material may be covered with paint, a tile, a sheet, or the like, and it may be difficult to specify the outer wall material itself.
【０００５】このように、家屋の外壁材が木材以外の建
材の場合は建材に穴を開け、この穴にプラグと呼ばれる
ねじの抜け留め部材を埋め込み、このプラグにねじ留め
することにより、引込線取付金具を外壁に取り付けてい
る。ところが、プラグ、ねじは各種あり、期待される引
留め力は、各製品により異なる。As described above, when the outer wall of the house is made of a building material other than wood, a hole is formed in the building material, and a screw retaining member called a plug is embedded in the hole, and the plug is screwed into the plug to attach the drop wire. The bracket is attached to the outer wall. However, there are various types of plugs and screws, and the expected retaining force differs depending on each product.
【０００６】このため、木材以外の家屋外壁に引込線取
付金具を取り付けた場合、使用したプラグ、ねじが確実
に引込線取付金具を固定して必要な引留め力が確保され
ているか否かを判断する方法はなく、人力で直接引っ張
ることにより、引込線取付金具が外壁にしっかりと固定
できたかどうかを確認しているのが現状であり、引込線
取付金具の脱落、電話引込線の垂れ下がりが発生する恐
れがあった。For this reason, when the drop-in fitting is mounted on an outdoor wall of a house other than wood, it is determined whether or not the plugs and screws used are securely fixing the drop-in fitting and the necessary retaining force is secured. There is no method, and it is currently checked whether the drop-in wire mounting bracket has been firmly fixed to the outer wall by pulling it directly with human power. Was.
【０００７】そこで、従来はこの引込線取付金具の脱落
対策として、実際の引込線取付金具の引留め力を検証す
るために、外壁材の種類とプラグやねじの種類で事前に
検証を行っておき、工事実施時に外壁材の確認をしてこ
の検証データに基づいて工事を実施している。Therefore, conventionally, as a countermeasure against dropping of the drop-in wire mounting bracket, in order to verify the actual retaining force of the drop-in wire mounting bracket, the type of the outer wall material and the types of plugs and screws were previously verified. At the time of construction, exterior wall materials are checked and construction is performed based on this verification data.
【０００８】また、詳細な引込線取付金具の引留め力の
測定が必要な場合は、ねじを取り付ける外壁に使用され
る該当部材を試験片（ブロック）状態で用意し、実際に
使用するねじをこのブロックにねじ込み、或いはプラグ
をこのブロックに埋め込んだ状態でねじ込み、該当部材
を固定してねじ頭部を引張試験機により引張り、ねじの
引留め力を測定していた。また、ブロックに実際にねじ
で引込線取付金具を取り付けて固定し、この引込線取付
金具を引張試験機で引っ張って使用状態におけるねじの
引留め力を測定することもある。この後者の場合を図面
を用いて説明する。[0008] When it is necessary to precisely measure the retaining force of the drop wire mounting bracket, a corresponding member used for the outer wall to which the screw is to be attached is prepared in a test piece (block) state, and the actually used screw is used for this purpose. A screw was screwed into the block or a plug was embedded in the block, and the corresponding member was fixed, the screw head was pulled by a tensile tester, and the retaining force of the screw was measured. In some cases, the lead wire mounting bracket is actually attached to the block with screws and fixed, and the lead wire mounting bracket is pulled by a tensile tester to measure the retaining force of the screw in use. This latter case will be described with reference to the drawings.
【０００９】図１(a) ，(b) は各種プラグ１とねじ２の
例を示しており、図１(c) はねじを取り付ける外壁材と
同じ材質のブロック３を示しており、図１(d) は引込線
取付金具（Ｃ形金物）４を示している。プラグ１は図２
(a) に示されるように、図１(c) に示したブロック３に
穴５を開けて埋め込まれ、図２(b) に示されるような状
態となる。このブロック３に、図２(c) に示すようにね
じ２を用いて図１(d)に示した引込線取付金具（Ｃ形金
物）４が取り付けられる。そして、この状態でブロック
３は固定治具６に固定され、ブロック３に取り付けられ
たＣ形金物４に引っ掛けられたワイヤ７を引張試験機８
により引張り、ねじの引留め力を測定していた。FIGS. 1 (a) and 1 (b) show examples of various plugs 1 and screws 2, and FIG. 1 (c) shows a block 3 made of the same material as the outer wall material to which the screws are attached. (d) shows a drop wire mounting bracket (C-shaped hardware) 4. Plug 1 is Fig. 2
As shown in FIG. 1A, a hole 5 is formed in the block 3 shown in FIG. 1C by making a hole 5 so as to be in a state as shown in FIG. 2B. As shown in FIG. 2 (c), the drop wire mounting bracket (C-shaped hardware) 4 shown in FIG. 1 (d) is attached to this block 3 using screws 2. Then, in this state, the block 3 is fixed to the fixing jig 6, and the wire 7 hooked on the C-shaped metal member 4 attached to the block 3 is subjected to a tensile tester 8.
And the retaining force of the screw was measured.
【００１０】[0010]
【発明が解決しようとする課題】しかしながら、外壁材
の種類とプラグやねじの種類に対して全ての組み合わせ
での検証試験は、多大な時間、費用がかかるという問題
点があった。また、工事実施時に外壁材の特定が難しい
場合があったり、新しい種類の建材、プラグ、ねじが発
売された場合には、その都度、対象物品を入手して検証
試験を実施する必要があるという問題点があった。更
に、引張試験機による実際に使用する外壁部材における
ねじの引留め力測定も時間と手間がかかるという問題点
があった。However, verification tests using all combinations of types of outer wall materials and types of plugs and screws have a problem that it takes a lot of time and cost. In addition, it may be difficult to identify the outer wall material at the time of construction, or when a new type of building material, plug, screw is released, it is necessary to obtain the target article and conduct a verification test each time. There was a problem. Further, there is a problem that it takes time and effort to measure the retaining force of the screw on the outer wall member actually used by the tensile tester.
【００１１】そこで、本発明は、前述の問題点に鑑み、
家屋の外壁などにねじを介して引込線取付金具を取り付
ける工事の際に、短時間で簡単にねじの引留め力が必要
値を満足しているか否かを確認できるねじの引留め力測
定器を提供することを目的としている。Therefore, the present invention has been made in view of the aforementioned problems,
When installing the drop wire mounting bracket via screws on the outer wall of a house, etc., a screw retention force measuring device that can easily and quickly confirm whether the retention force of the screw satisfies the required value or not. It is intended to provide.
【００１２】[0012]
【課題を解決するための手段】前記目的を達成する本発
明は、ねじ取付部にねじ込んだねじの引留め力を測定す
る測定器であって、所定の長さを備えた棒状のてこ板
と、このてこ板の一端部に揺動可能に取り付けられ、ね
じ頭部を固定できるねじ頭固定金具をその自由端部に有
する鍵棒と、前記てこ板に鍵棒と同じ向きに突出した支
持板と、この支持板の先端側を揺動可能に支持する支持
台座と、前記てこ板に、てこ板の他端方向に向かって伸
長して設けられ、その取付け基部が支持板に重なる部位
に設けられた撓み測定棒とから構成したことを特徴とし
ている。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a measuring instrument for measuring a retaining force of a screw screwed into a screw mounting portion, comprising a bar-shaped lever plate having a predetermined length. A key rod having a screw head fixing bracket attached to one end of the lever plate so as to be swingable and capable of fixing a screw head at its free end, and a support plate protruding from the lever plate in the same direction as the key rod. And a support pedestal for swingably supporting the distal end side of the support plate, and provided on the lever plate so as to extend toward the other end of the lever plate, and a mounting base thereof is provided at a portion overlapping the support plate. And a deflection measuring rod provided.
【００１３】この構成に加えて、てこ板の他端に、この
てこ板の撓み方向に突出して設けられ、てこ板の撓み量
を規制する***材を設けても良い。また、支持台座の
***材側の端部を曲面として形成すると共に、***
材の支持台座側の端部に鍵棒側に曲折する曲面を形成す
ることができる。In addition to this configuration, a safety member may be provided at the other end of the lever plate so as to protrude in the bending direction of the lever plate and regulate the amount of bending of the lever plate. Further, the end of the support pedestal on the side of the safety member may be formed as a curved surface, and the end of the safety member on the side of the support pedestal may be formed with a curved surface bent toward the key rod.
【００１４】本発明のねじの引留め力測定器によれば、
家屋の外壁にねじを介して引込線取付金具を取り付ける
工事の際に、短時間で簡単にねじの引留め力が必要値を
満足しているか否かを確認することができる。According to the screw retaining force measuring device of the present invention,
At the time of attaching the drop-in fitting to the outer wall of the house via a screw, it is possible to easily confirm in a short time whether or not the retaining force of the screw satisfies the required value.
【００１５】[0015]
【発明の実施の形態】以下添付図面を用いて本発明の実
施形態を具体的な実施例に基づいて詳細に説明する。Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
【００１６】図３(a) は、本発明の第１の実施例のねじ
の引留め力測定器１０の構成を示す側面図である。この
実施例のねじの引留め力測定器１０は、てこ板１１、揺
動可能な鍵棒１２、支持板１３、支持台座１４、撓み測
定棒１５、目盛り棒１６、および、***材１７とから
構成される。てこ板１１は、所定の長さを備えた棒状で
あり、その断面は例えば方形である。FIG. 3A is a side view showing the configuration of the screw retaining force measuring device 10 according to the first embodiment of the present invention. The screw retaining force measuring device 10 of this embodiment includes a lever plate 11, a swingable key rod 12, a support plate 13, a support pedestal 14, a deflection measuring rod 15, a scale rod 16, and a safety member 17. Be composed. The lever plate 11 has a rod shape having a predetermined length, and has a rectangular cross section, for example.
【００１７】可動式の鍵棒１２は、てこ板１１の一端部
に設けられたブラケット１３Ａに枢軸１２Ａによって揺
動可能に取り付けられており、その自由端部に、ねじの
頭部を固定できるねじ頭固定金具１２Ｂが設けられてい
る。鍵棒１２の構成の詳細は後述する。The movable key rod 12 is attached to a bracket 13A provided at one end of the lever plate 11 so as to be swingable by a pivot 12A, and has a free end to which a screw head can be fixed. A head fixing bracket 12B is provided. Details of the configuration of the key stick 12 will be described later.
【００１８】支持板１３は、この実施例では前記ブラケ
ット１３Ａと一体的に形成されており、てこ板１１の長
手方向に所定長さを備えると共に、鍵棒１２と同じ向き
に、てこ板１１に対して直角方向に突出する先細形状と
なっている。図３(b) は支持板１３の構成を示す斜視図
である。この支持板１３はフランジ１３Ｆがねじ止め等
によりてこ板１１に取り付けられる。支持板１３には鍵
棒１２の枢軸１２Ａを挿通する孔１３Ｂと、後述する支
持台座１４の枢軸１４Ａを挿通する孔１３Ｃが設けられ
ている。In this embodiment, the support plate 13 is formed integrally with the bracket 13A, has a predetermined length in the longitudinal direction of the lever plate 11, and is mounted on the lever plate 11 in the same direction as the key rod 12. It has a tapered shape projecting at right angles to the direction. FIG. 3B is a perspective view showing the configuration of the support plate 13. The flange 13F of the support plate 13 is attached to the lever plate 11 by screwing or the like. The support plate 13 is provided with a hole 13B for inserting a pivot 12A of the key rod 12 and a hole 13C for inserting a pivot 14A of a support base 14 described later.
【００１９】支持台座１４は、この支持板１３に枢軸１
４Ａを介して取り付けられるものであり、図３(c) に示
すように、ベース板１４Ｂとこのベース板１４Ｂの上に
突設された２枚の対向するブラケット１４Ｃとから構成
されている。そして、この実施例では、ベース板１４Ｂ
の鍵棒１２と反対側の端部に湾曲部１４Ｄが形成されて
いる。この湾曲部１４Ｄは、ベース板１４Ｂの接触面の
荷重が最も大きくなる側を湾曲させることで、壁面など
に傷や凹み等の発生を抑えるためのものである。The supporting pedestal 14 is mounted on the supporting plate 13
As shown in FIG. 3 (c), it is provided with a base plate 14B and two opposing brackets 14C protruding above the base plate 14B. In this embodiment, the base plate 14B
A curved portion 14D is formed at the end opposite to the key rod 12. The curved portion 14D is for curving the side where the load on the contact surface of the base plate 14B is the largest, thereby suppressing the occurrence of scratches or dents on the wall surface or the like.
【００２０】撓み測定棒１５はてこ板１１の側面に、て
こ板１１の他端方向に向かって伸長して設けられてお
り、その取付け基部１５Ａは支持板１３が取り付けられ
ている領域に位置している。即ち、ねじの引留め力測定
器１０を側面視した時に、撓み測定棒の取付け基部１５
Ａは支持板１３の上側の部位に設けられている。更に、
この撓み測定棒１５の先端部には、てこ板１１の撓み方
向に延長して設けられた目盛り棒１６が形成されてい
る。The deflection measuring rod 15 is provided on the side surface of the lever plate 11 so as to extend toward the other end of the lever plate 11, and its mounting base 15A is located in a region where the support plate 13 is mounted. ing. That is, when the screw retaining force measuring device 10 is viewed from the side, the mounting base 15 of the deflection measuring rod is used.
A is provided at a position above the support plate 13. Furthermore,
A scale bar 16 is formed at the distal end of the deflection measuring bar 15 so as to extend in the bending direction of the lever plate 11.
【００２１】一方、てこ板１１の他端に設けられた安全
部材１７は、この実施例では、てこ板１１の端部を保護
する保護部１７Ａと、てこ板１１の撓み方向に突出して
設けられ、てこ板１１の撓み量を規制する突出部１７Ｂ
とから構成されており、突出部１７の先端部には湾曲部
１７Ｃが設けられている。***材１７はこの突出部１
７Ｂによっててこ板１１の撓み量を規制するようになっ
ている。On the other hand, in this embodiment, the safety member 17 provided at the other end of the lever plate 11 is provided with a protection portion 17A for protecting the end of the lever plate 11 and a projecting member in the bending direction of the lever plate 11. Projection 17B for Limiting the Deflection of Lever Plate 11
The protrusion 17 has a curved portion 17 </ b> C at the tip thereof. The safety member 17 is provided with the protrusion 1
The amount of deflection of the lever plate 11 is regulated by 7B.
【００２２】図４は鍵棒１２の構成の詳細を示すもので
ある。鍵棒１２は、枢軸１２Ａ（図示せず）が挿通され
る軸孔１２Ｄが設けられた軸受部１２Ｃと、軸受部１２
Ｃに接続された支柱部１２Ｅ、及び、支柱部１２Ｅの自
由端部に設けられたねじ頭固定金具１２Ｂとから構成さ
れる。ねじ頭固定金具１２Ｂには、壁面などに取り付け
られたねじ２の頭部を挿通して固定できる係止穴１２Ｆ
が設けられている。FIG. 4 shows the details of the configuration of the key stick 12. The key rod 12 includes a bearing portion 12C provided with a shaft hole 12D through which a pivot 12A (not shown) is inserted, and a bearing portion 12C.
It comprises a column 12E connected to C, and a screw head fixing bracket 12B provided at a free end of the column 12E. A locking hole 12F through which the head of the screw 2 attached to the wall or the like can be inserted and fixed to the screw head fixing bracket 12B.
Is provided.
【００２３】ここで、以上のように構成された第１の実
施例のねじの引留め力測定器１０の使用方法を図５を用
いて説明する。Here, a method of using the screw retaining force measuring device 10 of the first embodiment configured as described above will be described with reference to FIG.
【００２４】図５(a) は壁面などにプラグ１を介して取
付けられたねじ２の頭部に、ねじの引留め力測定器１０
の鍵棒１２のねじ頭固定金具１２Ｂを固定する状態を示
すものである。ねじ頭固定金具１２Ｂは、枢軸１２Ａを
中心にして揺動させてその係止穴１２Ｆ内にねじ２の頭
部を挿通させて固定する。その後、図５(b) に示すよう
に、壁面などの上に支持台座１４を載置し、ねじ２の鉛
直線上に鍵棒１２の支柱部１２Ｅの軸線が位置するよう
にする。そして、支持台座１４の枢軸１４Ａを支点、鍵
棒１２の枢軸１２Ａを作用点、てこ板１１の他端の安全
部材１７を力点として、***材１７にねじ２を引き抜
く方向の押圧力を作用させる。FIG. 5 (a) shows a screw retaining force measuring instrument 10 attached to the head of a screw 2 mounted on a wall or the like via a plug 1.
3 shows a state in which the screw head fixing bracket 12B of the key stick 12 is fixed. The screw head fixing bracket 12B is swung about the pivot 12A to fix the screw 2 by inserting the head of the screw 2 into the locking hole 12F. Thereafter, as shown in FIG. 5 (b), the support base 14 is placed on a wall or the like so that the axis of the column 12E of the key rod 12 is located on the vertical line of the screw 2. With the pivot 14A of the support pedestal 14 as a fulcrum, the pivot 12A of the key rod 12 as a point of action, and the safety member 17 at the other end of the lever plate 11 as a point of force, a pressing force is applied to the safety member 17 in the direction of pulling out the screw 2. .
【００２５】***材１７を押圧すると、鍵棒１２に引
張力が加わりねじ２に引き抜き力が加わるが、ねじ２に
は引留め力があるので、図５(c) に示すように、てこ板
１１が撓む。てこ板１１の支持板１３が取り付けられて
いる部位は撓まないので、このてこ板１１の撓みは支持
板１３の端部から始まる。また、撓み測定棒１５はてこ
板１１と独立していて撓まないため、てこ板１１の撓み
量を目盛り棒１６で読み取ることができる。よって、こ
のてこ板１１の撓み量を目盛り棒１６で読み取れば、壁
面などのねじの引留め力を測定することができる。When the safety member 17 is pressed, a tensile force is applied to the key rod 12 and a pull-out force is applied to the screw 2. However, since the screw 2 has a retaining force, as shown in FIG. 11 bends. Since the part of the lever plate 11 to which the support plate 13 is attached does not bend, the bending of the lever plate 11 starts from the end of the support plate 13. Further, since the deflection measuring rod 15 is independent of the lever plate 11 and does not bend, the amount of bending of the lever plate 11 can be read by the scale bar 16. Therefore, if the amount of deflection of the lever plate 11 is read by the scale bar 16, it is possible to measure the retaining force of a screw such as a wall surface.
【００２６】この測定により、ねじ２に荷重が加わった
時の撓み量が測定でき、ねじ２の頭部に加わっている引
っ張り力を確認し、壁面などが十分な引留め力を備えて
いるかどうかを確認することができる。By this measurement, the amount of deflection when a load is applied to the screw 2 can be measured, the tensile force applied to the head of the screw 2 is checked, and whether or not the wall or the like has a sufficient retaining force Can be confirmed.
【００２７】また、てこ板１１が撓むとき、過大な力が
加わると***材１７の突出部１７Ｂが壁面などに接触
して、押圧力の大きさを抑えるので、ねじ２への過大な
引っ張り力が防止される。更に、ねじ２が引き抜けた場
合は、てこ板１１の撓み量が大きくなるが、***材１
７がてこ板１１と壁面などの間にあるであろう作業者の
手を防護し、かつ壁面などの損傷も抑えることができ
る。When an excessive force is applied when the lever plate 11 bends, the protruding portion 17B of the safety member 17 comes into contact with a wall surface or the like to suppress the magnitude of the pressing force. Force is prevented. Further, when the screw 2 is pulled out, the bending amount of the lever plate 11 increases, but the safety member 1
7 protects an operator's hand which may be between the lever plate 11 and the wall surface, and can also prevent damage to the wall surface.
【００２８】図６(a) は、本発明の第２の実施例のねじ
の引留め力測定器２０の構成を示す側面図である。この
実施例のねじの引留め力測定器２０が第１の実施例のね
じの引留め力測定器１０と異なる点は、支持台座１４と
***材１７の構成のみである。従って、第１の実施例
のねじの引留め力測定器１０と同じ構成部材には同じ符
号を付してその説明を省略する。FIG. 6A is a side view showing the structure of a screw retaining force measuring device 20 according to a second embodiment of the present invention. The screw retaining force measuring device 20 of this embodiment differs from the screw retaining force measuring device 10 of the first embodiment only in the configuration of the support base 14 and the safety member 17. Therefore, the same components as those of the screw retaining force measuring device 10 of the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.
【００２９】第１の実施例の***材１７には、保護部
１７Ａと、てこ板１１の撓み方向に突出する突出部１７
Ｂが設けられていたが、第２の実施例の***材１７に
は保護部１７Ａのみが設けられている。よって、この第
２の実施例のねじの引留め力測定器２０を使用して第１
の実施例のねじの引留め力測定器１０と同様の試験を行
うと、図５(c) の破線と、図７に示すように、てこ板１
１の撓み量をより大きくする、即ち、ねじ２により大き
な引っ張り力を作用させることができる。また、第２の
実施例のねじの引留め力測定器２０では、第１の実施例
のねじの引留め力測定器１０における支持台座１４のベ
ース部１４Ｂに設けられていた湾曲部１４Ｄが省略され
ている。The safety member 17 of the first embodiment has a protection portion 17A and a protrusion 17 protruding in the bending direction of the lever plate 11.
B is provided, but only the protection portion 17A is provided on the safety member 17 of the second embodiment. Therefore, the first embodiment using the screw retaining force measuring device 20 of the second embodiment is described.
When a test similar to that of the screw retaining force measuring device 10 of the embodiment is performed, the lever plate 1 as shown in FIG. 5 (c) and the broken line in FIG.
1 can be made larger, that is, a larger tensile force can be applied to the screw 2. Further, in the screw retaining force measuring device 20 of the second embodiment, the bending portion 14D provided on the base portion 14B of the support base 14 in the screw retaining force measuring device 10 of the first embodiment is omitted. Have been.
【００３０】図６(b) は、本発明の第３の実施例のねじ
の引留め力測定器３０の構成を示す側面図である。この
実施例のねじの引留め力測定器３０が第１の実施例のね
じの引留め力測定器１０と異なる点は、鍵棒１２を取り
付けるブラケット１３Ａが、支持板１３と独立して設け
られている点のみである。従って、第１の実施例のねじ
の引留め力測定器１０と同じ構成部材には同じ符号を付
してその説明を省略する。このように、鍵棒１２を取り
付けるブラケット１３Ａは、支持板１３と独立して設け
ることができる。FIG. 6B is a side view showing the configuration of a screw retaining force measuring device 30 according to a third embodiment of the present invention. The screw retaining force measuring device 30 of this embodiment is different from the screw retaining force measuring device 10 of the first embodiment in that a bracket 13A for attaching the key rod 12 is provided independently of the support plate 13. It is only the point that is. Therefore, the same components as those of the screw retaining force measuring device 10 of the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. In this manner, the bracket 13A for attaching the key rod 12 can be provided independently of the support plate 13.
【００３１】以上のような本発明の実施例のねじの引留
め力測定器１０，２０，３０によるねじの引留め力の検
証を、図１，図２で説明した従来のねじの引留め力の検
証と比較すると、以下のような差異が見られる。The verification of the screw holding force by the screw holding force measuring devices 10, 20, 30 according to the embodiment of the present invention as described above is based on the conventional screw holding force described with reference to FIGS. 1 and 2. The following differences are seen when compared with the verification in
【００３２】（Ａ）即応性 従来の検証では、測定に使用する外壁材等の物品の手配
に約２週間程度時間がかかっていたが、本発明によれ
ば、現場で工事に合わせた検証が可能であり、検証時間
が短縮できる。(A) Responsiveness In the conventional verification, it took about two weeks to arrange an article such as an outer wall material to be used for measurement. However, according to the present invention, verification suitable for construction at the site is performed. It is possible and the verification time can be shortened.
【００３３】（Ｂ）経済性 従来の検証では、物品費に約５万円かかっていたが、本
発明によれば、ねじの引留め力測定器の購入費が当初必
要であるが、その後は無料となり、経済性が良い。(B) Economics In the conventional inspection, the cost of goods was about 50,000 yen, but according to the present invention, the purchase cost of the measuring device of the screw retaining force is initially required. Free and economical.
【００３４】（Ｃ）汎用性 従来の検証では、既存の部材を使用して検証した物品に
のみねじの引留め力を知ることができるが、本発明によ
れば、現地の状況で個々の物品の検証を行うことがで
き、汎用性に優れる。(C) Versatility According to the conventional verification, the retaining force of the screw can be known only for the articles verified using the existing members. And excellent versatility.
【００３５】（Ｄ）測定値の正確性 従来の検証では、ねじの最大引留め力の測定が可能であ
るが、本発明によれば、ねじの必要な引留め力のみが確
認可能である。(D) Accuracy of Measured Values In the conventional verification, the maximum retaining force of the screw can be measured, but according to the present invention, only the necessary retaining force of the screw can be confirmed.
【００３６】（Ｅ）安全性 従来の検証では、外壁材が不明の場合があったが、本発
明によれば、現場の状況で、個々に検証するために安全
性が確保される。(E) Security In the conventional verification, there was a case where the outer wall material was unknown. However, according to the present invention, the security is ensured because the verification is performed individually in the situation at the site.
【００３７】[0037]
【発明の効果】以上説明したように、本発明によれば、
以下のような効果がある。As described above, according to the present invention,
The following effects are obtained.
【００３８】(1) てこ板の端を押すことにより、ねじに
引っ掛けた鍵棒に引張力が加わり、てこ板に撓みが発生
し、この撓み量を測定することによりねじの引留め力を
判断するが、てこの原理を利用することで、わずかな力
の印加だけでねじに大きな引張力を加えることができる
ため、人力で容易に測定ができる。(1) By pushing the end of the lever plate, a tensile force is applied to the key hook hooked on the screw, and the lever plate is bent. By measuring the amount of the bending, the retaining force of the screw is determined. However, by using the principle of leverage, a large tensile force can be applied to the screw by applying only a small force, so that measurement can be easily performed manually.
【００３９】(2) てこ板の撓みにより、てこ板に荷重を
加える端部が最終的に壁面などに接地することで、ねじ
頭部に発生する引張力を必要以上加えることを防止し、
壁面などの損傷を防止する働きをする。(2) By bending the lever plate, the end that applies a load to the lever plate finally contacts the wall or the like, thereby preventing the tensile force generated at the screw head from being applied more than necessary.
It works to prevent damage to walls and the like.
【００４０】(3) 壁面などに圧縮力が加わる支持台座の
面積を広くして外壁との接触面を大きくし、また接触面
の荷重が最も大きくなる側を曲面とすることで、外壁に
傷や凹み等の発生が抑えられる。(3) The area of the support pedestal where a compressive force is applied to the wall surface or the like is increased to increase the contact surface with the outer wall, and the side where the load on the contact surface is the largest is a curved surface. And the occurrence of dents and the like is suppressed.
【００４１】(4) 工事実施時のねじの引留め力測定に際
し、壁面方向に人力で押して測定するため、ねじが引き
抜けた場合でも作業者は外壁側に倒れこむため、高所作
業時の転落防止になる。(4) In measuring the retaining force of the screw at the time of the construction, the measurement is performed by manually pushing the screw toward the wall surface. Therefore, even if the screw is pulled out, the operator falls down to the outer wall side. Fall prevention.
【００４２】このように、本発明によれば、家屋外壁に
Ｃ形金物を取り付ける工事実施時に、所定の引留め力が
確保できているかを作業者が簡単に測定することが可能
となり、また外壁材が特定できない場合でも簡単にねじ
の引留め力の確認が可能となる。これにより、Ｃ形金物
の脱落、引込線の垂れ下がり事故を防止できるという効
果がある。As described above, according to the present invention, it is possible for an operator to easily measure whether or not a predetermined retaining force can be ensured at the time of carrying out construction work for attaching a C-shaped metal member to an outdoor wall of a house. Even when the material cannot be specified, it is possible to easily confirm the retaining force of the screw. As a result, there is an effect that it is possible to prevent the C-shaped hardware from falling off and the dropping wire from dropping.
【図１】(a) ，(b) は各種プラグとねじの例を示す斜視
図、(c) はねじを取り付ける外壁材と同じ材質のブロッ
クを示す斜視図、(d) は引込線取付金具を示す斜視図で
ある。FIGS. 1 (a) and 1 (b) are perspective views showing examples of various plugs and screws, (c) is a perspective view showing a block made of the same material as an outer wall material to which screws are attached, and (d) is a drawing wire mounting bracket. FIG.
【図２】(a) はブロック穴を開けてプラグを埋め込む状
態を説明する斜視図、(b) はプラグが埋め込まれたブロ
ックの斜視図、(c) はブロックにねじを用いて引込線取
付金具を固定する状態を示す側面図、(d) は引込線取付
金具が固定されたブロックが固定治具に固定され、ブロ
ックに取り付けられた引込線取付金具に引っ掛けられた
ロープが引張試験機により引張られるねじの引留め力を
測定試験を説明する側面図である。2A is a perspective view illustrating a state in which a block hole is opened and a plug is buried, FIG. 2B is a perspective view of a block in which a plug is buried, and FIG. 2C is a lead wire mounting bracket using screws in the block. (D) is a screw in which the block to which the drop wire mounting bracket is fixed is fixed to the fixing jig, and the rope hooked on the drop wire mounting bracket attached to the block is pulled by a tensile tester. FIG. 6 is a side view for explaining a test for measuring a retaining force of the test piece.
【図３】(a) は本発明の第１の実施例のねじの引留め力
測定器の構成を示す側面図、(b) は(a) の支持板の詳細
な構成を示す斜視図、(c) は(a) の支持台座の詳細な構
成を示す斜視図である。3A is a side view showing a configuration of a screw retaining force measuring device according to a first embodiment of the present invention, FIG. 3B is a perspective view showing a detailed configuration of a support plate of FIG. (c) is a perspective view showing a detailed configuration of the support base of (a).
【図４】図３(a) の鍵棒の詳細な構成およびねじの頭部
との係止状態を説明する斜視図である。FIG. 4 is a perspective view illustrating a detailed configuration of the key stick of FIG. 3 (a) and a locking state of a screw with a head.
【図５】(a) 〜(c) は本発明の第１の実施例のねじの引
留め力測定器の使用方法を説明する側面図である。FIGS. 5 (a) to 5 (c) are side views for explaining a method of using the screw retaining force measuring device according to the first embodiment of the present invention.
【図６】(a) は本発明の第２の実施例のねじの引留め力
測定器の構成を示す側面図、(b) は本発明の第３の実施
例のねじの引留め力測定器の構成を示す側面図である。FIG. 6 (a) is a side view showing a configuration of a screw retaining force measuring device according to a second embodiment of the present invention, and FIG. 6 (b) is a screw retaining force measuring device according to a third embodiment of the present invention. It is a side view which shows the structure of a container.
【図７】本発明の第２の実施例のねじの引留め力測定器
の動作を示す斜視図である。FIG. 7 is a perspective view showing the operation of the screw retaining force measuring device according to the second embodiment of the present invention.
１ プラグ ２ ねじ ３ ブロック ４ 引込線取付金具（Ｃ形金物） １０ 第１の実施例のねじの引留め力測定器 １１ てこ板 １２ 鍵棒 １２Ａ 枢軸 １２Ｂ ねじ頭固定金具 １３ 支持板 １３Ａ ブラケット １４ 支持台座 １４Ａ 枢軸 １４Ｄ 湾曲部 １５ 撓み測定棒 １６ 目盛り棒 １７ ***材 １７Ｃ 湾曲部 ２０ 第２の実施例のねじの引留め力測定器 ３０ 第３の実施例のねじの引留め力測定器 REFERENCE SIGNS LIST 1 plug 2 screw 3 block 4 lead wire mounting bracket (C type hardware) 10 screw retaining force measuring device of first embodiment 11 lever plate 12 key rod 12A pivot 12B screw head fixing bracket 13 support plate 13A bracket 14 support base 14A Axis 14D Bending part 15 Deflection measuring rod 16 Scale rod 17 Safety member 17C Bending part 20 Screw retaining force measuring device of second embodiment 30 Screw retaining force measuring device of third embodiment
Claims (3)
め力を測定する測定器であって、 所定の長さを備えた棒状のてこ板(11)と、 このてこ板(11)の一端部に揺動可能に取り付けられ、ね
じ頭部を固定できるねじ頭固定金具(13B) をその自由端
部に有する鍵棒(12)と、 前記てこ板(11)に前記鍵棒(12)と同じ向きに突出した支
持板(13)と、 この支持板(13)の先端側を揺動可能に支持する支持台座
(14)と、 前記てこ板(11)に、前記てこ板(11)の他端方向に向かっ
て伸長して設けられ、その取付け基部(15A) が前記支持
板(13)に重なる部位に設けられた撓み測定棒(15)とから
構成したことを特徴とするねじの引留め力測定器。1. A measuring device for measuring a retaining force of a screw (2) screwed into a screw mounting portion, comprising a rod-shaped lever plate (11) having a predetermined length, and a lever plate (11). A key rod (12) having a screw head fixing bracket (13B) at its free end, which is swingably attached to one end of the lever, and which can fix the screw head; A support plate (13) protruding in the same direction as), and a support base for swingably supporting the distal end side of the support plate (13)
(14), provided on the lever plate (11) so as to extend toward the other end of the lever plate (11), and the mounting base (15A) is provided at a position overlapping the support plate (13). And a deflection measuring rod (15).
であって、 前記てこ板(11)の他端に、このてこ板(11)の撓み方向に
突出して設けられ、前記てこ板(11)の撓み量を規制する
***材(17)が設けられていることを特徴とするねじの
引留め力測定器。2. The screw retaining force measuring device according to claim 1, wherein the lever is provided at the other end of the lever plate so as to protrude in a direction in which the lever plate flexes. A screw retaining force measuring device provided with a safety member (17) for regulating the amount of deflection of the plate (11).
であって、 前記支持台座(14)の前記***材(17)側の端部が曲面(1
4D) として形成されると共に、前記***材(17)の前記
支持台座(14)側の端部に前記鍵棒(12)側に曲折する曲面
(17C) が形成されていることを特徴とするねじの引留め
力測定器。3. The screw retaining force measuring device according to claim 2, wherein an end of the support base (14) on the side of the safety member (17) is a curved surface (1).
4D) and a curved surface bent at the end of the safety member (17) on the support pedestal (14) side toward the key rod (12).
(17C) A measuring device for retaining force of a screw, characterized in that a (17C) is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000398384A JP2002202214A (en) | 2000-12-27 | 2000-12-27 | Screw detaining force measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000398384A JP2002202214A (en) | 2000-12-27 | 2000-12-27 | Screw detaining force measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002202214A true JP2002202214A (en) | 2002-07-19 |
Family
ID=18863364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000398384A Pending JP2002202214A (en) | 2000-12-27 | 2000-12-27 | Screw detaining force measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002202214A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008209149A (en) * | 2007-02-23 | 2008-09-11 | Nagashima Imono Kk | Device for measuring lid opening operating force of iron lids |
| JP2015184244A (en) * | 2014-03-26 | 2015-10-22 | 日本電信電話株式会社 | Tension tester and inspection method |
| WO2018098962A1 (en) * | 2016-12-02 | 2018-06-07 | 广东中科华大工程技术检测有限公司 | Anchor rod pulling resistance testing device |
-
2000
- 2000-12-27 JP JP2000398384A patent/JP2002202214A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008209149A (en) * | 2007-02-23 | 2008-09-11 | Nagashima Imono Kk | Device for measuring lid opening operating force of iron lids |
| JP2015184244A (en) * | 2014-03-26 | 2015-10-22 | 日本電信電話株式会社 | Tension tester and inspection method |
| WO2018098962A1 (en) * | 2016-12-02 | 2018-06-07 | 广东中科华大工程技术检测有限公司 | Anchor rod pulling resistance testing device |
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