JP4143858B2 - Plate member connection structure and plate member connection device - Google Patents

Plate member connection structure and plate member connection device Download PDF

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JP4143858B2
JP4143858B2 JP2004219061A JP2004219061A JP4143858B2 JP 4143858 B2 JP4143858 B2 JP 4143858B2 JP 2004219061 A JP2004219061 A JP 2004219061A JP 2004219061 A JP2004219061 A JP 2004219061A JP 4143858 B2 JP4143858 B2 JP 4143858B2
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弘孝 角田
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Taiho Kogyo Co Ltd
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Description

本発明は板状部材の連結構造および板状部材の連結装置に関し、例えばガスケットの構成部材である複数の金属基板を連結する場合に好適な連結構造と連結装置に関する。   The present invention relates to a plate-like member connection structure and a plate-like member connection device, and more particularly to a connection structure and a connection device suitable for connecting a plurality of metal substrates which are constituent members of a gasket.

従来、複数の金属基板を積層して構成したガスケットは公知であり、そのようなガスケットにおいて、各金属基板を積層した状態において所要箇所を打ち抜いてから加圧してカシメることにより、各基板を連結する連結構造は知られている（例えば特許文献１）。この連結構造は一般に『ランスロック』と称されている。
そして、従来一般に上記ランスロックを形成する連結装置は次のような構成部材を備えている。すなわち、図１７ないし図１８に示すように、下方側に所定間隔を維持して配置した左右一対のナイフ５１、５２と、両ナイフ５１、５２の間の位置で、かつそれらよりも下方側に配置した支持部材５３と、支持部材５３の上方側に昇降自在に設けられて、両ナイフ５１、５２の間に押し下げられるパンチ５４とを備えている。
そして、ガスケット５６を構成する複数の金属基板５５Ａ〜５５Ｃを両ナイフ上５１、５２に載置してからパンチ５４を下降させる。これにより、下方へ突出した連結部５７が切り出されると同時に開口部５８が形成され、さらに連結部５７の底部５７Ａがパンチ５４と支持部材５３とによって加圧されて幅方向に伸張されて上記開口部５８の両側部を越えて板状部材５５Ｃの下面に係止される。これにより、積層状態の複数の基板５５Ａ〜５５Ｃが連結部５７によって一体に連結されるようになっている。
特開平８−４２９６９号公報 Conventionally, gaskets constructed by laminating a plurality of metal substrates are well known, and in such gaskets, each metal substrate is laminated, and after punching a required portion and pressing and crimping, the respective substrates are connected. A connecting structure is known (for example, Patent Document 1). This connecting structure is generally called “lance lock”.
The connecting device for forming the lance lock generally includes the following components. That is, as shown in FIGS. 17 to 18, a pair of left and right knives 51, 52 arranged at a predetermined interval on the lower side and a position between both knives 51, 52, and below the lower side. A support member 53 is provided, and a punch 54 is provided above the support member 53 so as to be movable up and down and pushed down between the knives 51 and 52.
Then, after placing the plurality of metal substrates 55 </ b> A to 55 </ b> C constituting the gasket 56 on both knives 51 and 52, the punch 54 is lowered. As a result, the connecting portion 57 projecting downward is cut out and an opening 58 is formed at the same time. Further, the bottom portion 57A of the connecting portion 57 is pressurized by the punch 54 and the support member 53 and is expanded in the width direction. The both sides of the portion 58 are engaged with the lower surface of the plate-like member 55C. As a result, the plurality of stacked substrates 55 </ b> A to 55 </ b> C are integrally connected by the connecting portion 57.
Japanese Patent Laid-Open No. 8-42969

ところで、上述した従来の連結装置においては、次のような欠点が指摘されていたものである。すなわち、図１７ないし図１８に示すように、連結部５７はパンチ５４とナイフ５１、５２によって下方側へ突出するように打ち抜かれる。その際、図１９、図２０に示すように、連結部５７の両側の縁部となる切断線Ｃ１と開口部５８の両側の縁部の切断線Ｃ２とは、連結部５７の四隅の位置（傾斜部５７Ｂの両隅の位置）で連続するので、連結部５７の四隅（傾斜部５７Ｂの両隅）の隣接位置に亀裂５９が生じるという欠点があった。このような亀裂が生じるとガスケットの耐久性が低下することになる。   By the way, in the conventional coupling device described above, the following drawbacks have been pointed out. That is, as shown in FIGS. 17 to 18, the connecting portion 57 is punched out so as to protrude downward by the punch 54 and the knives 51 and 52. At this time, as shown in FIGS. 19 and 20, the cutting line C <b> 1 that becomes the edge on both sides of the connecting portion 57 and the cutting line C <b> 2 on the edge on both sides of the opening portion 58 are positioned at the four corners of the connecting portion 57 ( Since it is continuous at both corners of the inclined portion 57B, there is a drawback that cracks 59 are formed at positions adjacent to the four corners of the connecting portion 57 (both corners of the inclined portion 57B). If such a crack occurs, the durability of the gasket will decrease.

上述した事情に鑑み、請求項１に記載した第１の発明は、積層した複数の板状部材を一面側から他面側へ打ち抜いて、上記他面側へ突出する連結部を切り出すと同時に、この連結部に対応する開口部を板状部材に形成し、上記連結部は、上記他面側へ突出された底部と、この底部と本来の板状部材とを接続する傾斜部とからなり、この連結部によって複数の板状部材を連結するようにした板状部材の連結構造において、
上記打ち抜きによって切断形成された連結部の切断線と開口部の切断線との間に位置する上記傾斜部の両側部は、切断によって相互に切り離されておらず、かつ本来の板状部材が上記打ち抜き方向に伸展されて形成された伸展部によって本来の板状部材と接続されているようにしたものである。
また、請求項３に記載した第２の発明は、下方側に配置した左右一対のナイフと、上方側に昇降可能に配置されたパンチとを備え、積層した複数の板状部材を上記ナイフとパンチとにより打ち抜いて下方側へ突出する連結部を切り出すと同時に、この連結部に対応する開口部を形成し、上記連結部は、下方側へ突出された底部と、この底部と本来の板状部材とを接続する傾斜部とからなり、この連結部によって複数の板状部材を連結するようにした板状部材の連結装置において、
上記ナイフおよびパンチにおける上記傾斜部と対応する箇所に断面円弧状の面取部を形成して、複数の板状部材を上記ナイフとパンチとにより打ち抜いて上記連結部を切り出した際に、上記打ち抜きによって切断形成された連結部の切断線と開口部の切断線とが相互に連続する連続部分は、切断によって相互に切り離されておらず、上記面取部によって本来の板状部材が上記打ち抜き方向に伸展されて形成される伸展部によって相互に接続されるようにしたものである。 In view of the above-described circumstances, the first invention described in claim 1 is a method of punching a plurality of laminated plate-like members from one surface side to the other surface side and cutting out the connecting portion protruding to the other surface side. An opening corresponding to the connecting portion is formed in the plate-like member, and the connecting portion includes a bottom portion protruding to the other surface side, and an inclined portion connecting the bottom portion and the original plate-like member, In the connection structure of the plate-like members that are configured to connect a plurality of plate-like members by this connection portion,
Both side portions of the inclined portion located between the cutting line of the connecting portion cut by the punching and the cutting line of the opening are not separated from each other by cutting, and the original plate-like member is It is designed to be connected to the original plate member by an extension portion formed by extending in the punching direction.
The second invention described in claim 3 includes a pair of left and right knives arranged on the lower side and a punch arranged to be raised and lowered on the upper side. At the same time as cutting out the connecting portion that is punched out by the punch and projecting downward, an opening corresponding to the connecting portion is formed. The connecting portion has a bottom protruding downward, the bottom and the original plate shape. In the plate-like member coupling device comprising a sloped portion that connects the members, and a plurality of plate-like members are coupled by this coupling portion,
When the chamfered portion having an arcuate cross section is formed at a position corresponding to the inclined portion in the knife and punch, and the plurality of plate-like members are punched out by the knife and the punch, and the connecting portion is cut out. The continuous portions in which the cutting line of the connecting portion and the cutting line of the opening formed by cutting are not separated from each other by cutting, and the original plate-like member is cut in the punching direction by the chamfered portion. They are connected to each other by extension parts formed by extension.

このような構成によれば、上記連結部の切断線と開口部の切断線とは上記伸展部によって接続されるので、連結部に隣接する箇所の本来の板状部材に亀裂が生じることを防止することができる。したがって、従来と比較して耐久性が高い板状部材の連結構造を提供できる。   According to such a configuration, since the cutting line of the connecting portion and the cutting line of the opening portion are connected by the extending portion, it is possible to prevent the original plate-like member at a location adjacent to the connecting portion from cracking. can do. Therefore, it is possible to provide a plate-like member connection structure having higher durability than conventional ones.

以下図示実施例について本発明を説明すると、図１において１は積層した複数の板状部材を連結する連結装置１であり、この連結装置１は、ガスケット２を構成する複数の板状部材３Ａ〜３Ｃを一体に連結するものである。従来公知のとおり、ガスケット２は、シリンダヘッドとシリンダブロックとの間に介在されてそれらの間をシールするものであり、ここではガスケット２全体の説明は省略する。   Hereinafter, the present invention will be described with reference to the illustrated embodiment. In FIG. 1, reference numeral 1 denotes a connecting device 1 for connecting a plurality of stacked plate-like members. The connecting device 1 includes a plurality of plate-like members 3 </ b> A- 3C is integrally connected. As conventionally known, the gasket 2 is interposed between the cylinder head and the cylinder block and seals between them, and the description of the gasket 2 as a whole is omitted here.

図１ないし図２に示すように、本実施例の連結装置１は、固定フレーム５に上方側へ向けて取り付けた支持部材としてのホルダ６と、このホルダ６の上部に所定間隔を維持して取り付けた左右一対のナイフ７、８と、上記ホルダ６の上方側に配置されて昇降手段１１によって昇降されるパンチ１２とを備えている。
両ナイフ７、８は、左右対称で同一形状に形成してあり、それらはホルダ６上に同じ高さに支持されるとともに、両ナイフ７、８の間にホルダ６の上端となる支持面６Ａを位置させている。支持面６Ａは水平に維持されるとともに、両ナイフ７、８よりも所定寸法だけ高さが低くなっている。 As shown in FIGS. 1 and 2, the coupling device 1 of the present embodiment maintains a predetermined interval between a holder 6 as a support member attached to the fixed frame 5 upward and an upper portion of the holder 6. A pair of left and right knives 7 and 8 are provided, and a punch 12 is disposed above the holder 6 and lifted and lowered by a lifting means 11.
Both knives 7 and 8 are symmetrical and formed in the same shape, and are supported on the holder 6 at the same height, and between the knives 7 and 8, a support surface 6 </ b> A serving as the upper end of the holder 6. Is located. The support surface 6 </ b> A is kept horizontal, and the height is lower than the knives 7 and 8 by a predetermined dimension.

連結装置１により板状部材３Ａ〜３Ｃを連結する際には、先ず複数の板状部材３Ａ〜３Ｃを両ナイフ７、８上に載置し、次に昇降手段１１によってパンチ１２を下降させる。
すると、該パンチ１２の下方部に設けた刃部１２Ａの長手方向の両側部と左右一対のナイフ７、８の刃部７Ａ、８Ａとによって板状部材３Ａ〜３Ｃが打ち抜かれて、全体として長方形の連結部４が切り出されると同時にその連結部４に対応する開口部９が形成されるようになっている。そしてさらに、昇降手段１１が所定量だけ継続して下降されるので、パンチ１２の刃部１２Ａに当接した連結部４は刃部１２Ａとともに下降される。
図２に示すように、パンチ１２の刃部１２Ａは、長手方向の中央側に水平な本体部１２ａと、この本体部１２ａの長手方向の両端側に位置して所定角度だけ傾斜させた２箇所の傾斜部１２ｂとによって構成している。
そのため、上述のようにパンチ１２の刃部１２Ａの本体部１２ａおよび両傾斜部１２ｂによって連結部４が下方に向けて継続して押し下げられることで、連結部４は、刃部１２Ａの本体部１２ａ及び両傾斜部１２ｂの形状に倣った谷形に成形されて下方へ突出するようになっている。 When connecting the plate-like members 3 </ b> A to 3 </ b> C by the connecting device 1, the plurality of plate-like members 3 </ b> A to 3 </ b> C are first placed on the knives 7 and 8, and then the punch 12 is lowered by the lifting / lowering means 11.
Then, the plate-like members 3A to 3C are punched out by the both sides in the longitudinal direction of the blade portion 12A provided in the lower portion of the punch 12 and the blade portions 7A and 8A of the pair of left and right knives 7 and 8, and the rectangular shape as a whole. At the same time as the connecting portion 4 is cut out, an opening 9 corresponding to the connecting portion 4 is formed. Further, since the elevating means 11 is continuously lowered by a predetermined amount, the connecting portion 4 that is in contact with the blade portion 12A of the punch 12 is lowered together with the blade portion 12A.
As shown in FIG. 2, the blade portion 12A of the punch 12 has a main body portion 12a that is horizontal on the center side in the longitudinal direction and two positions that are inclined at a predetermined angle and located on both ends in the longitudinal direction of the main body portion 12a. And the inclined portion 12b.
Therefore, as described above, the connecting portion 4 is continuously pushed downward by the main body portion 12a and the both inclined portions 12b of the blade portion 12A of the punch 12, so that the connecting portion 4 becomes the main body portion 12a of the blade portion 12A. And it is shape | molded by the valley shape which followed the shape of both the inclination parts 12b, and protrudes below.

図３ないし図４に示すように、連結部４は、長手方向の中央側に位置して最下方側の底部４Ａと、この底部４Ａから連続してその長手方向両端の隣接位置に形成される２箇所の傾斜部４Ｂとによって形成される。
そして、上記パンチ１２の水平な本体部１２ａとホルダ６の支持面６Ａとによって連結部４の底部４Ａが圧縮されることで、該底部４Ａが幅方向に伸張するようにカシメられる。
上記両ナイフ７、８は、ホルダ６上において連結部４の幅方向に移動可能となっており、上述したように、連結部４の本体部４Ａが幅方向に伸張することに伴って両ナイフ７、８は、相互に離隔するように押圧方向と直交する方向に平行移動されるようになっている。
これにより、底部４Ａの両側部４Ａ’が開口部９の両側を越えて隣接位置となる板状部材３Ｃの下面に係止されるので、複数の板状部材３Ａ〜３Ｃが一体に連結されるようになっている（図３〜図６参照）。
また、このような連結構造は、従来一般に『ランスロック』と称されている。 As shown in FIG. 3 to FIG. 4, the connecting portion 4 is formed on the lowermost side bottom portion 4 </ b> A on the center side in the longitudinal direction, and at the adjacent positions on both ends in the longitudinal direction continuously from the bottom portion 4 </ b> A. It is formed by two inclined portions 4B.
The bottom portion 4A of the connecting portion 4 is compressed by the horizontal main body portion 12a of the punch 12 and the support surface 6A of the holder 6, whereby the bottom portion 4A is crimped so as to extend in the width direction.
Both the knives 7 and 8 are movable in the width direction of the connecting portion 4 on the holder 6, and as described above, both the knives 7 and 8 extend along the width direction of the main body 4 </ b> A of the connecting portion 4. 7 and 8 are translated in a direction perpendicular to the pressing direction so as to be separated from each other.
As a result, the both side portions 4A ′ of the bottom portion 4A are locked to the lower surface of the plate-like member 3C that is located adjacent to both sides of the opening 9, so that the plurality of plate-like members 3A to 3C are integrally connected. (See FIGS. 3 to 6).
Such a connecting structure is generally called “lance lock”.

上述した連結装置１の構成は従来公知のものと変わるところはない。しかして、本実施例は、連結装置１におけるナイフ７、８の刃部７Ａ、８Ａおよびパンチ１２の刃部１２Ａを後述するように改良することで、上記連結部４の隣接箇所となる板状部材３Ａ〜３Ｃに亀裂が生じるのを防止したものである。
図７〜図１５は連結装置１の各構成部材の詳細を示したものである。
ここで、先ず、ナイフ７、８を取り付けるホルダ６について説明すると、図１および図７において、ホルダ６は段付円柱状に形成した下方側の係合部６Ｂを備えるとともに、この係合部６Ｂにおける上方側の端面に直径方向にわたって突設した突出部６Ｃを備えている。突出部６Ｃの幅は、上記連結部４Ａを形成する際の開口部９の幅Ｄ１と同じ寸法か、若干広く設定してあり、突出部６Ｃの高さはナイフ７、８の高さよりも少し低い寸法に設定している。この突出部６Ｃにおける水平な上面を上記支持面６Ａとしている。そして、この突出部６Ｃの両側に隣接する係合部６Ｂの上方側の端面を両ナイフ７、８を取り付ける装着面６Ｄとしている。
これら各装着面６Ｄに両ナイフ７、８の下面を係合させてから突出部６Ｃの側面に両ナイフ７、８を取り付けるようにしている。このようにホルダ６に両ナイフ７、８を取り付ける際には、両ナイフ７、８が相互に離隔する方向に、つまり突出部６Ｃの長手方向と直交する方向に平行移動できるようにしている。
上述したように両ナイフ７、８をホルダ６に装着し、その状態のホルダ６の係合部を上記固定フレーム５の係合孔に嵌合することで、固定フレーム５上における所定位置にホルダ６とナイフ７、８を取り付けるようになっている。 The configuration of the coupling device 1 described above is not different from that conventionally known. Thus, in the present embodiment, the blade portions 7A and 8A of the knives 7 and 8 and the blade portion 12A of the punch 12 in the connecting device 1 are improved as will be described later, thereby forming a plate shape that is adjacent to the connecting portion 4. This prevents the members 3A to 3C from cracking.
7 to 15 show details of each component of the coupling device 1.
Here, first, the holder 6 to which the knives 7 and 8 are attached will be described. In FIGS. 1 and 7, the holder 6 includes a lower engaging portion 6B formed in a stepped cylindrical shape, and the engaging portion 6B. 6C is provided with a projecting portion 6C projecting in the diametrical direction on the upper end face. The width of the protruding portion 6C is set to be the same as or slightly wider than the width D1 of the opening 9 when the connecting portion 4A is formed, and the height of the protruding portion 6C is slightly smaller than the height of the knives 7 and 8. Set to a low dimension. The horizontal upper surface of the protruding portion 6C is the support surface 6A. And the upper end surface of the engaging portion 6B adjacent to both sides of the protruding portion 6C is a mounting surface 6D to which both knives 7 and 8 are attached.
Both the knives 7 and 8 are attached to the side surface of the projecting portion 6C after the lower surfaces of the knives 7 and 8 are engaged with the mounting surfaces 6D. In this way, when the knives 7 and 8 are attached to the holder 6, the knives 7 and 8 can be moved in parallel in a direction away from each other, that is, in a direction perpendicular to the longitudinal direction of the protruding portion 6C.
As described above, the two knives 7 and 8 are mounted on the holder 6, and the engaging portion of the holder 6 in that state is fitted into the engaging hole of the fixed frame 5, so that the holder is placed at a predetermined position on the fixed frame 5. 6 and knives 7 and 8 are attached.

次に、本実施例の両ナイフ７、８は同一形状に形成されているので、一方のナイフ７についてだけ構成を説明し、他方のナイフ８の説明は省略する。
すなわち、図９〜図１１に示すように、ナイフ７は、厚肉の概略長方形状に形成されており、その水平な下面７Ｂを上記ホルダ６の装着面６Ｄに載置するとともに、内方側の側面７Ｃをホルダ６の突出部６Ｃの側面に当接させるようになっている（図７参照）。
ナイフ７には、両側面７Ｃ、７Ｄと直交する段付の貫通孔７Ｅを穿設してあり、上述したようにナイフ７の下面７Ｂをホルダ６の装着面６Ｄに載置させた状態において、ナイフ７の内方側の側面７Ｃをホルダ６の突出部６Ｃに向けて付勢するばねをはさんで上記貫通孔７Ｅにガイド用のボルトを挿通させてからこのボルトの先端部をホルダ６の突出部６Ｃに螺合させるようにしている。他方のナイフ８もこれと同様にしてホルダ６の突出部６Ｃに連結するようになっている。
打ち抜き加工開始前の状態では、上記ガイド用のボルトに取り付けたばねによって各ナイフ７、８の内方側の側面７Ｃ、８Ｃをホルダ６の突出部６Ｃの側面に当接させるようにしてあり、パンチ１１による板状部材３Ａ〜３Ｃの打ち抜きの際には、連結部４の底部４Ａが幅方向に伸張することに伴って両ナイフ７、８は上記ボルトにガイドされて相互に離隔する方向に平行移動されるようになっている。
上述したように突出部６Ｃを挟んで両ナイフ７、８をホルダ６に連結すると両ナイフ７、８の水平な上面７Ｆ、８Ｆがホルダ６の支持面６Ａよりも所定寸法だけ上方側に位置するようになっている（図１および図７参照）。
本実施例においては、上記ナイフ７の上面７Ｆにおける内方側の縁部に上記刃部７Ａを形成している。この刃部７Ａは、上面７Ｆの内方側の縁部における長手方向の中央側に形成してあり、断面は直角となっている。またこの刃部７Ａの長手方向の寸法は、上記連結部４の底部４Ａの長さと同じ寸法に設定している。 Next, since both knives 7 and 8 of the present embodiment are formed in the same shape, only the configuration of one knife 7 will be described, and the description of the other knife 8 will be omitted.
That is, as shown in FIGS. 9 to 11, the knife 7 is formed in a thick, generally rectangular shape, and the horizontal lower surface 7 </ b> B is placed on the mounting surface 6 </ b> D of the holder 6. The side surface 7 </ b> C is brought into contact with the side surface of the protruding portion 6 </ b> C of the holder 6 (see FIG. 7).
The knife 7 is provided with stepped through holes 7E perpendicular to both side surfaces 7C and 7D, and in the state where the lower surface 7B of the knife 7 is placed on the mounting surface 6D of the holder 6 as described above, A guide bolt is inserted through the through-hole 7E through a spring that biases the inner side surface 7C of the knife 7 toward the protrusion 6C of the holder 6, and then the tip of the bolt is inserted into the holder 6 The protrusion 6C is screwed. The other knife 8 is also connected to the protrusion 6C of the holder 6 in the same manner.
In the state before the punching process is started, the inner side surfaces 7C and 8C of the knives 7 and 8 are brought into contact with the side surfaces of the protruding portions 6C of the holder 6 by the springs attached to the guide bolts. When the plate-like members 3A to 3C are punched by 11, the two knives 7 and 8 are guided by the bolts and are parallel to each other as the bottom portion 4A of the connecting portion 4 extends in the width direction. It has been moved.
As described above, when the two knives 7 and 8 are connected to the holder 6 with the protruding portion 6C interposed therebetween, the horizontal upper surfaces 7F and 8F of the knives 7 and 8 are positioned above the support surface 6A of the holder 6 by a predetermined dimension. (See FIGS. 1 and 7).
In the present embodiment, the blade portion 7A is formed on the inner edge of the upper surface 7F of the knife 7. The blade portion 7A is formed on the center side in the longitudinal direction at the inner edge portion of the upper surface 7F, and the cross section is a right angle. The longitudinal dimension of the blade part 7A is set to the same dimension as the length of the bottom part 4A of the connecting part 4.

他方、上面７Ｆの内方側の縁部における刃部７Ａに隣接する２箇所は、断面円弧状に面取りをした面取部７Ｇ、７Ｇとしている。この面取部７Ｇ、７Ｇの長手方向寸法は、上記連結部４における両傾斜部４Ｂ、４Ｂの水平方向寸法と同じ長さに設定している。また、上面７Ｆの外方側の縁部は、その長手方向の全域を断面円弧状に面取りした面取部７Ｈとしている。
このように本実施例においては、ナイフ７における刃部７Ａは、連結部４の底部４Ａと対応する箇所だけに形成してあり、連結部４の傾斜部４Ｂと対応する箇所は断面円弧状の面取部７Ｇ、７Ｇとしている。
なお、他方のナイフ８も上記ナイフ７と同様に構成してあり、図１、図７及び図９に示すように、両ナイフ７、８の刃部７Ａ、８Ａを対向させるとともに、面取部７Ｇ、７Ｇと面取部８Ｇ、８Ｇを対向させて両ナイフ７、８をホルダ６に取り付けるようにしている。 On the other hand, two locations adjacent to the blade portion 7A at the inner edge of the upper surface 7F are chamfered portions 7G and 7G which are chamfered in a circular arc shape in cross section. The longitudinal dimension of the chamfered portions 7G and 7G is set to the same length as the horizontal dimension of both inclined portions 4B and 4B in the connecting portion 4. Further, the outer edge portion of the upper surface 7F is a chamfered portion 7H in which the entire area in the longitudinal direction is chamfered in a cross-sectional arc shape.
As described above, in the present embodiment, the blade portion 7A of the knife 7 is formed only in the portion corresponding to the bottom portion 4A of the connecting portion 4, and the portion corresponding to the inclined portion 4B of the connecting portion 4 has an arcuate cross section. The chamfered portions 7G and 7G are used.
The other knife 8 is configured in the same manner as the knife 7, and as shown in FIGS. 1, 7, and 9, the blade portions 7A and 8A of both knives 7 and 8 are opposed to each other, and the chamfered portion is formed. Both knives 7 and 8 are attached to the holder 6 with 7G and 7G facing the chamfered portions 8G and 8G.

さらに、本実施例においては、パンチ１２の刃部１２Ａにおける両傾斜部１２ｂの縁部も断面円弧状に面取りしている。図１２から図１５に示すように、パンチ１２は、上方部に円柱状の小径部１２Ｂを備えるとともに、その下方に大径の位置決め部１２Ｃを備え、さらに下端部となる箇所に上記刃部１２Ａを備えている。小径部１２Ｂを昇降手段１１の係合孔に嵌着するとともに、位置決め部１２Ｃに形成した平面部１２Ｃ’を昇降手段１１側の位置決め部と係合させることで、パンチ１２の刃部１２Ａを両ナイフ７、８に対して所定方向に位置決めできるようになっている。
そして、刃部１２Ａの両傾斜部１２ｂにおける両側の縁部は、断面円弧状に面取りした面取部１２ｂ’としている。この面取部１２ｂ’は、ナイフ７、８側の面取部７Ｇ、８Ｇと対応する位置に形成されている。
このように本実施例のナイフ７、８およびパンチ１２は、連結部４を形成する際の傾斜部４Ｂと対応する箇所に断面円弧状の面取部７Ｇ、８Ｇ、１２ｂ’を形成することで、連結装置１によって板状部材３Ａ〜３Ｃから連結部４を打ち抜く際に傾斜部４Ｂの両側部が本来の板状部材３Ａ〜３Ｃから切り離されないようになっている。
これに対して、本体部１２ａの縁部は断面直角に形成してあり、その本体部１２ａとナイフ７、８の刃部７Ａ、８Ａとによって板状部材３Ａ〜３Ｃを一対の平行な切断線によって切断して、連結部４における底部４Ａの両側部４Ａ’を切り出すことができるようになっている。 Further, in the present embodiment, the edge portions of both inclined portions 12b in the blade portion 12A of the punch 12 are also chamfered in a cross-sectional arc shape. As shown in FIGS. 12 to 15, the punch 12 includes a cylindrical small-diameter portion 12 </ b> B at the upper portion, a large-diameter positioning portion 12 </ b> C below the punch portion 12, and the blade portion 12 </ b> A at a lower end portion. It has. The small-diameter portion 12B is fitted into the engagement hole of the lifting / lowering means 11 and the flat portion 12C ′ formed on the positioning portion 12C is engaged with the positioning portion on the lifting / lowering means 11 side. The knife 7 can be positioned in a predetermined direction.
And the edge part of the both sides in both the inclination parts 12b of 12 A of blade parts is made into the chamfering part 12b 'chamfered by the cross-section circular arc shape. The chamfered portion 12b ′ is formed at a position corresponding to the chamfered portions 7G and 8G on the knives 7 and 8 side.
As described above, the knives 7 and 8 and the punch 12 of the present embodiment are formed by forming the chamfered portions 7G, 8G, and 12b ′ having an arcuate cross section at a position corresponding to the inclined portion 4B when the connecting portion 4 is formed. When the connecting device 1 is used to punch the connecting portion 4 from the plate-like members 3A to 3C, both side portions of the inclined portion 4B are not separated from the original plate-like members 3A to 3C.
On the other hand, the edge part of the main-body part 12a is formed in the cross-sectional right angle, and the plate-shaped members 3A-3C are made into a pair of parallel cutting lines by the main-body part 12a and the blade parts 7A and 8A of the knives 7 and 8. Thus, both side portions 4A ′ of the bottom portion 4A in the connecting portion 4 can be cut out.

以上のように構成した連結装置１により、図１に関して前述したようにパンチ１２を下降させて複数の板状部材３Ａ〜３Ｃに連結部４および開口部９を形成して各部材を連結する。
つまり、ナイフ７、８の刃部７Ａ、８Ａおよびパンチ１２の刃部１２Ａの本体部１２ａと対応する位置の板状部材３Ａ〜３Ｃが直線状に切断されて、２本の平行な切断線Ｃ１により連結部４の底部４Ａが形成されるとともに、２本の平行な切断線Ｃ２により開口部９が形成される（図５ないし図６参照）。またそれと同時に、上記底部４Ａの両隣の位置に傾斜部４Ｂが形成されるが、上記面取部７Ｇ、８Ｇ、１２ｂ’は断面円弧状となっているので、傾斜部４Ｂの両側部となる箇所は、下方側へ伸展するだけで切断されずに上下方向に延びる伸展部１３として形成される。換言すると、図５ないし図６に示すように、本実施例は、連結部４の両側の縁となる両切断線Ｃ１と、開口部９の両側の縁となる両切断線Ｃ２とが相互に連続する連続部分（傾斜部４Ｂの両側部）は切り離されることなく上記伸展部１３によって接続されることになる。
そのため、連結装置１によって板状部材３Ａ〜３Ｃの所要箇所に連結部４を形成して連結した際には、両傾斜部４Ｂの隅の隣接箇所（連結部４の四隅の隣接箇所）となる板状部材３Ａ〜３Ｃに亀裂が生じることを良好に防止することができる（図５参照）。したがって、本実施例によれば、従来と比較して耐久性が高い板状部材の連結構造と連結装置を提供することができる。
これに対して、上述したように、図１７ないし図１８に示した従来の連結装置においては、ナイフ５１、５２およびパンチ５４によって傾斜部５７Ｂの両側を切り離すことで、連結部５７および開口部５８の切断線Ｃ１、Ｃ２が連結部５７の四隅の位置で連続していたので、傾斜部５７Ｂの隅部の隣接箇所に亀裂５９が生じていたものである（図１９、図２０参照）。
なお、上記実施例においては、ホルダ６に設けた両ナイフ７、８は、ホルダ６上で相互に離隔する方向に平行移動されるように構成していたが、次のような構成であっても良い。すなわち、図１６に示すように、両ナイフ７、８の下面中央に半円状の突出部７Ｊ、８Ｊを形成し、これらの突出部７Ｊ、８Ｊに支持軸２０を貫通させてホルダ６にナイフ７、８を取り付けても良い。このような構成とすることで、両ナイフ７、８は、支持軸２０を中心としてホルダ６上で揺動可能となり、両ナイフ７、８の刃部７Ａ、８Ａは相互に離隔する方向に移動することができる。
さらに、上述した実施例は、ガスケットを構成する複数の板状部材を連結する際に本発明を適用した場合を説明したが、ガスケットに限らず積層状態の複数の金属板を連結する場合に本発明を適用することができる。 With the connecting device 1 configured as described above, the punch 12 is lowered as described above with reference to FIG. 1 to form the connecting portion 4 and the opening 9 in the plurality of plate-like members 3A to 3C to connect the members.
That is, the plate-like members 3A to 3C at positions corresponding to the blade portions 7A and 8A of the knives 7 and 8 and the main body portion 12a of the blade portion 12A of the punch 12 are cut linearly, and two parallel cutting lines C1. As a result, the bottom 4A of the connecting portion 4 is formed, and the opening 9 is formed by two parallel cutting lines C2 (see FIGS. 5 to 6). At the same time, inclined portions 4B are formed at positions adjacent to the bottom portion 4A. However, the chamfered portions 7G, 8G, and 12b 'are arcuate in cross section, so that the portions become both sides of the inclined portion 4B. Is formed as an extended portion 13 that extends in the vertical direction without being cut only by extending downward. In other words, as shown in FIGS. 5 to 6, in this embodiment, the two cutting lines C <b> 1 serving as the edges on both sides of the connecting portion 4 and the both cutting lines C <b> 2 serving as the edges on both sides of the opening 9 are mutually connected. Consecutive continuous portions (both sides of the inclined portion 4B) are connected by the extending portion 13 without being cut off.
Therefore, when the connecting device 4 is formed and connected to the required portions of the plate-like members 3A to 3C by the connecting device 1, it becomes an adjacent portion of the corners of both inclined portions 4B (adjacent portions of the four corners of the connecting portion 4). It can prevent favorably that a crack arises in plate-like members 3A-3C (refer to Drawing 5). Therefore, according to the present embodiment, it is possible to provide a plate-shaped member connection structure and a connection device that have higher durability than conventional ones.
On the other hand, as described above, in the conventional connecting device shown in FIGS. 17 to 18, the connecting portion 57 and the opening portion 58 are separated by separating both sides of the inclined portion 57 </ b> B with the knives 51 and 52 and the punch 54. Since the cutting lines C1 and C2 are continuous at the four corner positions of the connecting portion 57, the crack 59 is generated at the adjacent portion of the corner portion of the inclined portion 57B (see FIGS. 19 and 20).
In the above-described embodiment, the two knives 7 and 8 provided on the holder 6 are configured to be translated in a direction away from each other on the holder 6. Also good. That is, as shown in FIG. 16, semicircular protrusions 7J and 8J are formed in the center of the lower surfaces of both knives 7 and 8, and the support shaft 20 is passed through these protrusions 7J and 8J so that the knife is inserted into the holder 6. 7 and 8 may be attached. With this configuration, both knives 7 and 8 can swing on the holder 6 with the support shaft 20 as the center, and the blade portions 7A and 8A of both knives 7 and 8 move in directions away from each other. can do.
Further, in the above-described embodiment, the case where the present invention is applied when connecting a plurality of plate-like members constituting the gasket has been described. However, the present invention is not limited to the case of connecting a plurality of laminated metal plates. The invention can be applied.

本発明の一実施例を示す概略の構成図。BRIEF DESCRIPTION OF THE DRAWINGS The schematic block diagram which shows one Example of this invention. 図１のＩＩ―ＩＩ線に沿う要部の断面図。Sectional drawing of the principal part which follows the II-II line | wire of FIG. 図１のＩＩ―ＩＩ線に沿う要部の拡大断面図。The expanded sectional view of the principal part which follows the II-II line | wire of FIG. 図１の要部の拡大断面図。The expanded sectional view of the principal part of FIG. 図１に示す連結装置によって形成した連結部の平面図。The top view of the connection part formed with the connection apparatus shown in FIG. 図５のＶＩ―ＶＩ線に沿う斜視図。The perspective view which follows the VI-VI line of FIG. 図１に示したホルダ６の正面図。The front view of the holder 6 shown in FIG. 図７の右側面図。The right view of FIG. 図１に示したナイフ７、８の斜視図。The perspective view of the knives 7 and 8 shown in FIG. 図９に示したナイフ７の正面図。The front view of the knife 7 shown in FIG. 図１０のＸＩ―ＸＩ線に沿う断面図。Sectional drawing which follows the XI-XI line of FIG. 図１に示したパンチの正面図。The front view of the punch shown in FIG. 図１２の右側面図。The right view of FIG. 図１３の底面図。FIG. 14 is a bottom view of FIG. 13. 図１２の要部を拡大した斜視図。The perspective view which expanded the principal part of FIG. 本発明の他の実施例を示す要部の正面図。The front view of the principal part which shows the other Example of this invention. 従来の連結装置を示す概略の構成図。The schematic block diagram which shows the conventional connection apparatus. 図１７のＡ―Ａ線に沿う要部の断面図。Sectional drawing of the principal part in alignment with the AA of FIG. 図１７に示す従来の連結装置によって形成した連結部の平面図。The top view of the connection part formed with the conventional connection apparatus shown in FIG. 図１９のＢ―Ｂ線に沿う斜視図。The perspective view which follows the BB line of FIG.

符号の説明Explanation of symbols

１…連結装置 ２…ガスケット
３Ａ〜３Ｃ…板状部材 ４…連結部
４Ａ…底部 ４Ｂ…傾斜部
７、８…ナイフ ７Ｇ、８Ｇ…面取部
９…開口部 １２…パンチ
１２ｂ’…面取部 １３…伸展部
Ｃ１…切断線 Ｃ２…切断線 DESCRIPTION OF SYMBOLS 1 ... Connection apparatus 2 ... Gasket 3A-3C ... Plate-shaped member 4 ... Connection part 4A ... Bottom part 4B ... Inclination part 7, 8 ... Knife 7G, 8G ... Chamfering part 9 ... Opening part 12 ... Punch 12b '... Chamfering part 13 ... Extension part C1 ... Cutting line C2 ... Cutting line

Claims (4)

積層した複数の板状部材を一面側から他面側へ打ち抜いて、上記他面側へ突出する連結部を切り出すと同時に、この連結部に対応する開口部を板状部材に形成し、上記連結部は、上記他面側へ突出された底部と、この底部と本来の板状部材とを接続する傾斜部とからなり、この連結部によって複数の板状部材を連結するようにした板状部材の連結構造において、
上記打ち抜きによって切断形成された連結部の切断線と開口部の切断線との間に位置する上記傾斜部の両側部は、切断によって相互に切り離されておらず、かつ本来の板状部材が上記打ち抜き方向に伸展されて形成された伸展部によって本来の板状部材と接続されていることを特徴とする板状部材の連結構造。 A plurality of laminated plate-like members are punched from one surface side to the other surface side, and at the same time, the connecting portion protruding to the other surface side is cut out, and at the same time, an opening corresponding to the connecting portion is formed in the plate-like member, and the connection is made The part is composed of a bottom part protruding to the other surface side, and an inclined part that connects the bottom part and the original plate-like member, and a plate-like member that connects a plurality of plate-like members by this connecting part. In the connection structure of
Both side portions of the inclined portion located between the cutting line of the connecting portion cut by the punching and the cutting line of the opening are not separated from each other by cutting, and the original plate-like member is A connecting structure for plate-like members, wherein the plate-like member is connected to an original plate-like member by an extension portion formed by extending in the punching direction. 上記連結部の底部における両側部は、上記開口部の切断線を越える位置まで幅方向に伸張されて上記開口部の切断線に隣接する板状部材の他方側の面に係止されていることを特徴とする請求項１に記載の板状部材の連結構造。   Both side portions at the bottom of the connecting portion are extended in the width direction to a position beyond the cutting line of the opening and locked to the other surface of the plate-like member adjacent to the cutting line of the opening. The plate member connection structure according to claim 1. 下方側に配置した左右一対のナイフと、上方側に昇降可能に配置されたパンチとを備え、積層した複数の板状部材を上記ナイフとパンチとにより打ち抜いて下方側へ突出する連結部を切り出すと同時に、この連結部に対応する開口部を形成し、上記連結部は、下方側へ突出された底部と、この底部と本来の板状部材とを接続する傾斜部とからなり、この連結部によって複数の板状部材を連結するようにした板状部材の連結装置において、
上記ナイフおよびパンチにおける上記傾斜部と対応する箇所に断面円弧状の面取部を形成して、複数の板状部材を上記ナイフとパンチとにより打ち抜いて上記連結部を切り出した際に、上記打ち抜きによって切断形成された連結部の切断線と開口部の切断線とが相互に連続する連続部分は、切断によって相互に切り離されておらず、上記面取部によって本来の板状部材が上記打ち抜き方向に伸展されて形成される伸展部によって相互に接続されることを特徴とする板状部材の連結装置。 A pair of left and right knives arranged on the lower side and a punch arranged to be raised and lowered on the upper side are provided, and a plurality of stacked plate-like members are punched out with the knife and the punch to cut out a connecting portion protruding downward. At the same time, an opening corresponding to the connecting portion is formed, and the connecting portion includes a bottom portion protruding downward, and an inclined portion connecting the bottom portion and the original plate-like member. In the plate-shaped member connecting apparatus that connects a plurality of plate-shaped members by:
When the chamfered portion having an arcuate cross section is formed at a position corresponding to the inclined portion in the knife and punch, and the plurality of plate-like members are punched out by the knife and the punch, and the connecting portion is cut out. The continuous portions in which the cutting line of the connecting portion and the cutting line of the opening formed by cutting are not separated from each other by cutting, and the original plate-like member is cut in the punching direction by the chamfered portion. A connecting device for plate-like members, wherein the connecting members are connected to each other by extension parts formed by extension. 上記底部の両側部は、上記開口部の切断線を越える位置まで幅方向に伸張されて上記開口部の切断線に隣接する板状部材の下面に係止されていることを特徴とする請求項３に記載の板状部材の連結装置。   The both side portions of the bottom portion are extended in the width direction to a position exceeding the cutting line of the opening and are locked to the lower surface of the plate-like member adjacent to the cutting line of the opening. 3. A plate-like member coupling device according to 3.
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