JPH01158157A - Joint structure of reticulate reinforcement - Google Patents
Joint structure of reticulate reinforcementInfo
- Publication number
- JPH01158157A JPH01158157A JP62315229A JP31522987A JPH01158157A JP H01158157 A JPH01158157 A JP H01158157A JP 62315229 A JP62315229 A JP 62315229A JP 31522987 A JP31522987 A JP 31522987A JP H01158157 A JPH01158157 A JP H01158157A
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing bars
- joint
- vertical
- reinforcement
- mesh
- 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.)
- Granted
Links
- 230000002787 reinforcement Effects 0.000 title description 28
- 230000003014 reinforcing effect Effects 0.000 claims description 121
- 238000003466 welding Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
Landscapes
- Reinforcement Elements For Buildings (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は縦横各鉄筋を溶着してなる網状鉄筋の継手構造
に係るもので為る。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a joint structure of reticular reinforcing bars formed by welding vertical and horizontal reinforcing bars.
（従来の技術）
本発明者等は量に特願昭６２−１２２５６０号において
、縦横各鉄筋を溶着し、且つ継手部の配筋間隔を残余の
一般部の配筋間隔の２倍とした一双の網状鉄筋を、一方
の網状鉄筋の継手部配筋が、他方の網状鉄筋の相隣る継
手部配筋の中間に位置するように重合して接続した網状
鉄筋の継手を、また特願昭６２−１４００５２号におい
て縦横各鉄筋が溶着され、゛且つ継手部の配筋間隔が残
余の一般部の配筋間隔の２倍とされた一双の網状鉄筋を
、同一平面上に位置するように対設し、次いで縦横各鉄
筋が溶着され、且つ前記網状鉄筋の継手部と同一配筋間
隔を有する接続鉄筋を、前記両網状鉄筋の継手部に跨っ
て重合すると七もに、同各継手部の配筋の中間に前記接
続鉄筋の配筋が位置するように接続した網状鉄筋の継手
を提案し、網状鉄筋の継手部におけるコンクリートの支
圧面積を増大し、同コンクリートの支圧割裂を有効に防
止しうるようにした。(Prior Art) In Japanese Patent Application No. 62-122560, the inventors of the present invention have developed a double-barreled structure in which vertical and horizontal reinforcing bars are welded together, and the bar spacing at the joint is twice that of the remaining general portion. A joint of mesh reinforcing bars in which mesh reinforcing bars are overlapped and connected such that the joint reinforcement of one mesh reinforcing bar is located between the adjacent joint reinforcing bars of the other mesh reinforcing bar is also disclosed in the patent application A. In No. 62-140052, vertical and horizontal reinforcing bars were welded together, and a pair of reticular reinforcing bars were arranged so that they were located on the same plane, and the reinforcing spacing at the joint part was twice that of the remaining general part. Then, when the vertical and horizontal reinforcing bars are welded together and the connecting reinforcing bars having the same reinforcement spacing as the joints of the mesh reinforcing bars are superimposed across the joints of both the mesh reinforcing bars, the We proposed a joint of reticulated reinforcing bars connected so that the reinforcement of the connecting reinforcement is located in the middle of the rebar arrangement, increasing the bearing area of concrete at the joint of reticulated reinforcing bars, and effectively preventing cracking of the concrete. I made it possible to prevent it.
更にまた特願昭６２−２８５４９１号（昭和６２年１り
月！３日出＃（Ａ）号）特願昭６２−２８５４９２号（
昭和６２年１１月１３日出願Ｂ号）において縦横各鉄筋
が溶着され、且つ縦横継手部の配筋間隔が残余の一般部
の配筋間隔の２倍とされた網状鉄筋を、同一平面上に位
置するように縦横両方向に亘って対設し、同縦横各継手
位置において夫々前記各網状鉄筋の継手部と同一配筋間
隔を有する添筋金網を、同金網の配筋が前記各網状鉄筋
の各継手部の鉄筋の中間に位置するとともに、前記縦横
各方向の添筋金網の継手位置を縦横両方向でずらせ、同
継手位置で夫々前記網状鉄筋及び添鉄筋網が向い合わせ
並に背中合せに継接された網状鉄筋の継手、 縦横各
鉄筋を溶着し、且つ上下、左右の各端部継手部の配筋間
隔を、残余の一般部の配筋間隔の２倍とした網状部主体
の隅各部における、−双の対角線のうち、一方の対角線
の両端部には相隣る縦鉄筋の中間に継手用縦鉄筋を、他
方の対角線の両端部には相隣る横鉄筋の中間に継手用横
鉄筋を夫々配筋した第１の網状鉄筋と、前記網状鉄筋主
体を裏返し、同主体における前記第１の網状鉄筋と対応
部位に継手用縦鉄筋及び横鉄筋を配筋してなる第２の網
状鉄筋とを上下、左右にずらして配設し、縦方向及び横
方向の継手位置で夫々前記第１、第２の網状鉄筋が向い
合わせ並に背中合わせに継接された網状鉄筋の継手を提
案し、前記網状鉄筋が多段に重合することのないように
し、鉄筋の有効酸を大とし、コンクリートのかぶり厚が
一般部と継手部とで大きく変ることのないようにした。Furthermore, Japanese Patent Application No. 1985-285491 (January 1985! 3rd, No. (A)) and Japanese Patent Application No. 1985-285492 (
In Application No. B, filed on November 13, 1988, the vertical and horizontal reinforcing bars were welded together, and the reticular reinforcing bars in which the spacing at the vertical and lateral joints was twice that of the remaining general sections were placed on the same plane. The reinforcement wire meshes are arranged oppositely in both the vertical and horizontal directions so that the reinforcement wire meshes have the same reinforcement spacing as the joint portion of each of the mesh reinforcing bars at the same vertical and horizontal joint positions, and the reinforcing bars of the wire mesh are arranged oppositely in both the vertical and horizontal directions so that the reinforcing bars of the wire mesh are arranged oppositely in both the vertical and horizontal directions so that It is located in the middle of the reinforcing bars of each joint, and the joint position of the reinforcing bar mesh in each of the vertical and horizontal directions is shifted in both the vertical and horizontal directions, and the mesh reinforcing bars and the reinforcing bar mesh are jointed facing each other and back to back at the same joint position. At each corner of the main part of the mesh section, welded vertical and horizontal reinforcing bars, and made the reinforcement spacing at the upper, lower, left, and right end joints twice the reinforcing spacing in the remaining general sections. , - Of the two diagonals, vertical reinforcing bars for joints are placed between adjacent vertical reinforcing bars at both ends of one diagonal, and horizontal reinforcing bars for joints are placed between adjacent horizontal reinforcing bars at both ends of the other diagonal. a first reticulated reinforcing bar in which the reticulated reinforcing bars are respectively arranged, and a second reticulated reinforcing bar in which the main reticulated reinforcing bar is turned over and longitudinal reinforcing bars and horizontal reinforcing bars for joints are arranged in corresponding parts of the main reticulated reinforcing bar in the same body. proposes a joint of reticulated reinforcing bars in which the first and second reticulated reinforcing bars are jointed face-to-face and back-to-back at joint positions in the vertical and horizontal directions, respectively. The mesh reinforcing bars are prevented from polymerizing in multiple stages, the effective acid content of the reinforcing bars is increased, and the concrete cover thickness is prevented from greatly varying between the general part and the joint part.
（発明が解決しようとする問題点）
しかしながら前記網状鉄筋の継手において、相隣る網状
鉄筋を背中合わせに重合するとき、各網状鉄筋の上下に
隣る横鉄筋間に芯ずれがあるため、横鉄筋に引張応力が
働くと縦画端部に偏心曲げモーメントが生じる。(Problem to be Solved by the Invention) However, in the joint of the mesh reinforcing bars, when adjacent mesh reinforcing bars are overlapped back to back, there is a misalignment between the horizontal reinforcing bars adjacent above and below each mesh reinforcing bar. When tensile stress is applied to the frame, an eccentric bending moment is generated at the edge of the vertical image.
これは１０ｍｍ径以下径線下網状鉄筋であれば問題にな
らないが、太径鉄筋を用いた溶接鉄筋にこのような偏心
曲げモーメントが生起すると問題で、この偏心曲げモー
メントによって継手部のコンクリートにも応力を生じ、
鉄筋が降伏する以前に破壊する。This is not a problem if it is a reticular reinforcing bar with a diameter of 10 mm or less, but it becomes a problem if such an eccentric bending moment occurs in welded reinforcing bars using large diameter reinforcing bars, and this eccentric bending moment can also cause damage to the concrete at the joint. causes stress,
Destroy the reinforcing steel before it yields.
（問題点を解決するための手段）
本発明はこのような問題点を解決するために提案された
ものであって、縦横各鉄筋を溶着してなる網状鉄筋を背
中合わせに重合してなる継手部において、互いに重合す
る前記両網状鉄筋の上下に隣る横鉄筋間に跨架された縦
方向継手補強筋を配設してなること特徴とする網状鉄筋
の継手構造に係るものである。(Means for Solving the Problems) The present invention has been proposed in order to solve these problems, and provides a joint section in which mesh reinforcing bars formed by welding vertical and horizontal reinforcing bars are superimposed back to back. According to the joint structure of the reticulated reinforcing bars, a vertical joint reinforcing bar is provided spanning between horizontal reinforcing bars adjacent above and below the two reticulated reinforcing bars that overlap with each other.
（作用）
本発明は前記したように構成されているので、前記網状
鉄筋の継手部における横鉄筋に引張力が作用したとき、
同横鉄筋の上下方向の芯ずれに基因する偏心曲げモーメ
ントによって生じる力を、前記継手部において互いに背
中合わせに重合する相隣る両網状鉄筋の上下に隣る横鉄
筋を跨ぐ縦方向継手補強鉄筋によって拘束し、継手部に
おける網状鉄筋間の応力伝達が円滑に行われるようにな
る。(Function) Since the present invention is configured as described above, when a tensile force is applied to the horizontal reinforcing bars at the joint portion of the mesh reinforcing bars,
The force generated by the eccentric bending moment caused by the vertical misalignment of the horizontal reinforcing bars is absorbed by the vertical joint reinforcing reinforcing bars that straddle the horizontal reinforcing bars that are adjacent to each other above and below the two adjacent mesh reinforcing bars that overlap each other back to back at the joint. This ensures smooth stress transmission between the mesh reinforcing bars at the joint.
（実施例） 以下本発明を図示の実施例について説明する。(Example) The present invention will be described below with reference to the illustrated embodiments.
第１図乃至第３図は縦横各鉄筋（１）（２）（１’ ）
（２’ ）を溶着し、且つ継手部の配筋間隔を一般部の
配筋間隔ｌの２倍（＝２ｍ２）とした内外の一双の網状
鉄筋材をダブル配筋した網状鉄筋（Ａ）（八′）を、一
方の網状鉄筋（Ａ）の継手部の縦鉄筋（１）が他方の網
状鉄筋（Ａ′）の相隣る継手用横鉄筋（１′）の中間に
位置するように背中合わせに重合、接続した前掲特願昭
６２−１２２５６０号及び特願昭６２−号（昭和６２年
１１月１３日出願）に示された網状鉄筋の継手部（Ｌ）
に本発明を適用した実施例を示し、継手部の外側端に、
前記各網状鉄筋（Ａ）（Ａ ’ ）の各上下に隣る横鉄
筋（２）（２’）及び（２）（２’ ）間を跨ぐ縦方向
継手補強筋（３）が配筋される０、図示の実施例は前記
したように構成されているので、前記横鉄筋（２）（２
’）に引張力Ｔが作用し、横鉄筋（２）（２’ ）の上
下方向の偏心量ｅに基いて生起する曲げモーメントＭに
よって生じる力を前記縦方向継手補強筋（３）によって
拘束し、前記網状鉄筋（＾）（Ａ’）の重ね継手部にお
ける同各鉄筋（Ａ）（Ａ′）間の応力の伝達が円滑に行
なわれるようにし、コンクリート部に応力が生起するこ
とのないようにしてその破壊を防止する。Figures 1 to 3 show vertical and horizontal reinforcing bars (1) (2) (1')
Reticulated reinforcing bars (A) (2') are welded together, and the reinforcing spacing at the joint part is twice the reinforcing spacing l in the general part (=2m2), with a pair of internal and external reticulating reinforcing bars being double reinforced ( 8') back to back so that the vertical reinforcing bars (1) of the joint part of one mesh reinforcing bar (A) are located between the adjacent horizontal reinforcing bars (1') for the joint of the other mesh reinforcing bar (A'). The joint part (L) of the mesh reinforcing bars shown in the above-mentioned Japanese Patent Application No. 122560/1982 and Japanese Patent Application No. 1983 (filed on November 13, 1988)
An example in which the present invention is applied is shown, and at the outer end of the joint part,
Vertical joint reinforcing bars (3) are arranged that straddle the horizontal reinforcing bars (2) (2') and (2) (2') adjacent above and below each of the mesh reinforcing bars (A) (A'). 0. Since the illustrated embodiment is configured as described above, the horizontal reinforcing bars (2) (2
A tensile force T acts on the horizontal reinforcing bars (2) (2'), and the force generated by the bending moment M generated based on the vertical eccentricity e of the horizontal reinforcing bars (2) (2') is restrained by the longitudinal joint reinforcing bars (3). , Stress transmission between the mesh reinforcing bars (A) (A') at the lap joint of the mesh reinforcing bars (A') should be carried out smoothly, and stress should not be generated in the concrete part. to prevent its destruction.
なお前記実施例においては縦方向継手補強筋（３）は網
状鉄筋（Ａ） （Ａ’ ）の継手部の最外側端に集中し
て配筋したものであって、継手部の耐力及び変形性能は
これでも十分であるが、更に第４図乃至第６図に示すよ
うに、継手部全面における各網状鉄筋材における縦横鉄
筋（１）（２）、 （１’ ） （２’ ）の全接合交
点間に配置したものは、継手部の耐力、変形性能が更に
向上する。In the above example, the longitudinal joint reinforcing bars (3) are concentrated at the outermost ends of the joints of the mesh reinforcing bars (A) (A'), and are designed to improve the strength and deformation performance of the joints. This is sufficient, but as shown in Figs. When placed between the intersection points, the strength and deformation performance of the joint are further improved.
なお前記各実施例はダブル配筋の場合が示されているが
、シングル配筋の場合にも本発明に適用されるものであ
る。Although each of the above embodiments shows the case of double reinforcement, the present invention is also applicable to the case of single reinforcement.
第７図乃至第９図は前記各網状鉄筋（Ａ） （Ａ’ ）
を同一平面上に位置するように対設し、縦横各鉄筋（１
’ ）（２’ ）が溶着され、且つ前記各網状鉄筋（Ａ
）（Ａ′）の継手部と同一配筋間隔を有する添鉄筋（Ｂ
）を前記両網状鉄筋（Ａ）（Ａ’ ）の継手部に跨って
背中合わせに重合するとともに、同各継手部の中間に位
置するようにした前掲特願昭６２−１４００５２号に示
された網状鉄筋の継手部に本発明を適用した実施例を示
し、前記網状鉄筋（Ａ）（Ａ ’ ）の継手部における
両外側端に同各網状鉄筋（Ａ） （Ａ’ ”）の上下に
隣る横鉄筋（２）（２’）と添鉄筋（Ｂ）の横鉄筋（２
＃） との間を跨ぐ縦方向継手補強筋（３）が配筋され
ている。Figures 7 to 9 show each of the mesh reinforcing bars (A) (A')
The vertical and horizontal reinforcing bars (1
) (2') are welded, and each of the mesh reinforcing bars (A
) (A') joint part and the same reinforcement spacing (B
) are superimposed back to back across the joints of both the reticulated reinforcing bars (A) and (A'), and are located in the middle of each joint, as shown in the above-mentioned Japanese Patent Application No. 140052/1985. An embodiment in which the present invention is applied to a joint part of reinforcing bars is shown, and the above-mentioned reticulated reinforcing bars (A) (A') are placed at both outer ends of the joint part of the reticulated reinforcing bars (A) (A''') adjacent to each other above and below. Horizontal reinforcement (2) (2') and horizontal reinforcement (B)
#) Vertical joint reinforcing bars (3) are placed across the area.
なお本実施例の作用効果は前記実施例と実質的に同一で
あるから説明を省略する。Note that the effects of this embodiment are substantially the same as those of the previous embodiment, so the explanation will be omitted.
更に第１Ｏ図乃至第１１図は、前記横方向継手補強筋（
３）を継手部における添鉄筋（Ｂ）の縦横鉄筋（１″）
（２＃）の交点間に配設した実施例を示すものである。Further, FIGS. 1O to 11 show the lateral joint reinforcement (
3) Vertical and horizontal reinforcement bars (1″) of reinforcement reinforcement bars (B) at the joint part
(2#) shows an embodiment arranged between the intersections.
なお前記再実施例はシングル配筋の場合にも適用される
ことは勿論である。It goes without saying that the above-mentioned second embodiment is also applied to the case of single reinforcement.
なお本発明は通常の鉄筋間隔を有する網状鉄筋の継手に
も適用される。Note that the present invention is also applicable to joints of reticular reinforcing bars having normal spacing between reinforcing bars.
次に本発明の実験例を挙げる。Next, an experimental example of the present invention will be given.
Ｄ３８の大径溶接金網を用いた継手性状を調べるため、
試験体両端の鉄筋を両引きする実験をｄった。In order to investigate the joint properties using D38 large diameter welded wire mesh,
An experiment was conducted in which the reinforcing bars at both ends of the specimen were pulled in both directions.
試験体は、継手部最外端に集中して縦方向継手補強筋を
配置したち−のと、最外端と各溶接点の交点に縦方向継
手補強筋を配置したもの、さらに縦方向継手補強筋のな
いものの３つの試験体を比較した。継手部の耐力と変形
性能は夫々第１３図のＰ。The test specimens were one in which longitudinal joint reinforcement was placed concentrated at the outermost end of the joint, one in which longitudinal joint reinforcement was arranged at the intersection of the outermost end and each welding point, and one in which vertical joint reinforcement was arranged at the intersection of the outermost end and each welding point. Three specimens without reinforcement were compared. The yield strength and deformation performance of the joint are shown in P in Figure 13, respectively.
Ｑ、 Ｒに示すようになり、最外端に縦方向継手補強
筋を配置したものでも耐力および変形は継手性能として
十分であるが、さらに各溶接点に縦方向継手補強筋を配
置したものは耐力および変形性能は優れている。しかし
、縦方向継手補強筋を配置しなかったものは鉄筋が降伏
する荷重以前に破壊し、前記桁方向継手補強筋が配筋さ
れたものに比して劣る性状を示した。As shown in Q and R, the strength and deformation are sufficient for the joint performance even with longitudinal joint reinforcement placed at the outermost end, but with vertical joint reinforcement placed at each welding point, The yield strength and deformation performance are excellent. However, those in which longitudinal joint reinforcing bars were not arranged broke before the load to which the reinforcing bars yielded, and exhibited inferior properties compared to those in which girder direction joint reinforcing bars were arranged.
（発明の効果）
このように本発明によれば、縦横各鉄筋を溶着してなる
網状鉄筋の継手部において、背中合わせに重合された接
続すべき網状鉄筋の各上下に隣る横鉄筋に跨架された縦
方向継手補強筋を配筋したことによって、前記網状鉄筋
の横鉄筋の芯ずれによって偏心曲げモーメントが働いて
も、同曲げモーメントによる継手部内に生じる力を拘束
し、継手部における網状鉄筋間の応力の伝達を円滑にし
て同継手部のコンクリートの破壊を防止し、継手部耐力
及び変形性能を大幅に向上するものである。(Effects of the Invention) According to the present invention, in the joint portion of the mesh reinforcing bars formed by welding the vertical and horizontal reinforcing bars, the mesh reinforcing bars that are overlapped back to back and are to be connected are straddled across the horizontal reinforcing bars adjacent above and below each other. By arranging longitudinal joint reinforcing bars, even if an eccentric bending moment is applied due to misalignment of the transverse reinforcing bars of the mesh reinforcing bars, the force generated in the joint due to the bending moment is restrained, and the mesh reinforcing bars in the joint are restrained. This prevents the concrete in the joint from breaking by smoothing the transmission of stress between the joints, greatly improving the strength and deformation performance of the joint.
第１図及び第２図は夫々本発明に係る網状鉄筋の継手構
造の一実施例を示す横断平面図差に正面図、第３図は第
２図の矢視■−■図、第４図及び第５図は夫々本発明の
他の実施例を示す横断平面図差に正面図、第６図は第５
図の矢視Ｖｌ−■図、第７図及び第８図は夫々本発明の
他の実施例を示す横断平面図差に正面図、第９図は第８
図の矢視ＩＸ−ＩＸ図、第１０図及び第１１図は夫々本
発明の更に他の実施例を示す横断平面図差に正面図、第
１２図は第１１図の矢視ｘｎ−ｘｎ図、第１３図は本発
明の継手部の試験結果を示す図表である。
（Ａ）（八′）・・−網状鉄筋、（Ｂ）・・・添鉄筋、
（［１’）（１′）−縦鉄筋、
（２）（２’ ）（２“）−横鉄筋、
（３）−ｍ−縦方向継手補強筋。1 and 2 are cross-sectional plan views and front views showing one embodiment of the joint structure of reticular reinforcing bars according to the present invention, FIG. and FIG. 5 are cross-sectional plan views and front views showing other embodiments of the present invention, and FIG.
The arrow Vl-■ view in the figure, FIGS. 7 and 8 are cross-sectional plan views showing other embodiments of the present invention, respectively.
The diagrams IX-IX, FIG. 10 and FIG. 11 are cross-sectional plan views showing still other embodiments of the present invention, respectively, and FIG. 12 is a front view taken along arrows xn-xn of FIG. 11. , FIG. 13 is a chart showing the test results of the joint portion of the present invention. (A) (8')...-reticulated reinforcing bars, (B)... attached reinforcing bars,
([1') (1') - Longitudinal reinforcement, (2) (2' ) (2'') - Transverse reinforcement, (3) - m - Longitudinal joint reinforcement.
Claims (3)
に重合してなる継手部において、互いに重合する前記両
網状鉄筋の上下に隣る横鉄筋間に跨架された縦方向継手
補強筋を配設してなること特徴とする網状鉄筋の継手構
造。(1) In a joint formed by overlapping mesh reinforcing bars made by welding vertical and horizontal reinforcing bars back to back, vertical joint reinforcing bars are straddled between the horizontal reinforcing bars adjacent above and below the above-mentioned mesh reinforcing bars that overlap with each other. A joint structure of reticulated reinforcing bars, which is characterized by its arrangement.
配設された特許請求の範囲第１項に記載の網状鉄筋の継
手構造。(2) The joint structure of reticular reinforcing bars according to claim 1, wherein the longitudinal joint reinforcing bars are arranged at the outer end of the joint part.
の交点間に亘って配設された特許請求の範囲第１項に記
載の網状鉄筋の継手構造。(3) The joint structure of reticular reinforcing bars according to claim 1, wherein the longitudinal joint reinforcing bars are arranged between the intersection points of the vertical and horizontal reinforcing bars of the joint portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62315229A JPH0799041B2 (en) | 1987-12-15 | 1987-12-15 | Reinforcing bar joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62315229A JPH0799041B2 (en) | 1987-12-15 | 1987-12-15 | Reinforcing bar joint structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01158157A true JPH01158157A (en) | 1989-06-21 |
| JPH0799041B2 JPH0799041B2 (en) | 1995-10-25 |
Family
ID=18062945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62315229A Expired - Lifetime JPH0799041B2 (en) | 1987-12-15 | 1987-12-15 | Reinforcing bar joint structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0799041B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160127776A (en) * | 2014-03-24 | 2016-11-04 | 세이코 엡슨 가부시키가이샤 | Tape cartridge |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS464428A (en) * | 1970-04-07 | 1971-11-15 |
-
1987
- 1987-12-15 JP JP62315229A patent/JPH0799041B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS464428A (en) * | 1970-04-07 | 1971-11-15 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160127776A (en) * | 2014-03-24 | 2016-11-04 | 세이코 엡슨 가부시키가이샤 | Tape cartridge |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0799041B2 (en) | 1995-10-25 |
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