FR2477457A1 - Adjustable spanner with slidable cantilever jaw - has jaw threaded on cranked neck lever via rectangular window and is locked by wedging - Google Patents

Adjustable spanner with slidable cantilever jaw - has jaw threaded on cranked neck lever via rectangular window and is locked by wedging Download PDF

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Publication number
FR2477457A1
FR2477457A1 FR8005006A FR8005006A FR2477457A1 FR 2477457 A1 FR2477457 A1 FR 2477457A1 FR 8005006 A FR8005006 A FR 8005006A FR 8005006 A FR8005006 A FR 8005006A FR 2477457 A1 FR2477457 A1 FR 2477457A1
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FR
France
Prior art keywords
jaw
movable jaw
guide
wedging
locked
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.)
Withdrawn
Application number
FR8005006A
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French (fr)
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CORNELY PIERRE
Original Assignee
CORNELY PIERRE
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Filing date
Publication date
Application filed by CORNELY PIERRE filed Critical CORNELY PIERRE
Priority to FR8005006A priority Critical patent/FR2477457A1/en
Publication of FR2477457A1 publication Critical patent/FR2477457A1/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00Spanners; Wrenches
    • B25B13/10Spanners; Wrenches with adjustable jaws
    • B25B13/12Spanners; Wrenches with adjustable jaws the jaws being slidable
    • B25B13/20Arrangements for locking the jaws
    • B25B13/24Arrangements for locking the jaws by cam, wedge, or friction means

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

The adjustable spanner uses parallel fixed (1c) and movable (4) jaws which cantilever from the cranked neck (1b) of a hand lever (1a). Jaw is moved by sliding along the neck, being locked in the required position by an automatic wedging effect. The neck has a uniform rectangular cross-section, traversing a nominally oversize jaw (4) opening (0) of a similar configuration. The opening is slightly inclined relative to the active and trailing jaw faces. A spring loaded ball (9) may tilt the jaws to promote wedging, and a screw jack in the diagonally opposite position (5a) may augment the effect. Thumb pressure on either heel zones (5c,5b) may tilt the jaw into the slidable position.

Description

L'invention concerne une clé de serrage à mâchoire mobile avec blocage en position de la mâchoire mobile par coincement. The invention relates to a movable jaw tightening wrench with locking in position of the movable jaw by wedging.

L'objet de l'invention se rattache au secteur technique des outils à main. The object of the invention relates to the technical sector of hand tools.

On connait bien dans ce domaine les clés à mclette dont lté- cartement des mâchoires ne reste pas fixe d'un serrage à l'autre. We know well in this field the wrenches whose jaw housing does not remain fixed from one tightening to another.

Par ailleurs dans ce type de clés, la mâchoire mobile présente par rapport à la mâchoire fixe un certain jeu qui produit un écartement imprécis entre les deux mâchoires. Furthermore, in this type of key, the movable jaw has a certain clearance with respect to the fixed jaw which produces an imprecise spacing between the two jaws.

On a proposé des systèmes de blocage de la mâchoire mobile en position de réglage pour les clés à molette, mais, ils sont complexes et coûteux. Systems for locking the movable jaw in the adjustment position have been proposed for adjustable wrenches, but they are complex and expensive.

Un autre inconvénient résulte du volume de la mâchoire fixe servant de guide à la mâchoire mobile; ce volume rend difficile l'accès de telles clés dans les endroits exigüs. Another drawback results from the volume of the fixed jaw serving as a guide for the movable jaw; this volume makes it difficult to access such keys in tight spaces.

On connait également dans ce secteur les clés auto-serrantes dont l'angle entre le plan des mâchoires et l'axe du manche n'est pas constant, ce qui pose avec pour certaines un volume important de la tête, un problème de serrage dans les endroits exigüs. Self-tightening keys are also known in this sector, the angle between the plane of the jaws and the axis of the handle is not constant, which poses with some a large volume of the head, a problem of tightening in cramped places.

Suivant l'invention, on a voulu réaliser une clé à mâchoire mobile dont la fabrication soit simple et économique et dont la mâchoire mobile puisse conserver sans jeu une position choisie avec un minimum d'encombrement des mâchoires et un angle fixe entre les faces des mâchoires et le manche. According to the invention, it was desired to produce a movable jaw key, the manufacture of which is simple and economical, and the movable jaw of which can maintain a chosen position without play, with a minimum size of the jaws and a fixed angle between the faces of the jaws. and the handle.

La clé de serrage selon l'invention est remarquable en ce que la mâchoire mobile n'est mue par aucun organe mobile: c'est le pouce de l'utilisateur qui l'amène dans sa position de serrage. The tightening key according to the invention is remarkable in that the movable jaw is not moved by any movable member: it is the thumb of the user which brings it into its clamping position.

Suivant une autre caractéristique, la mâchoire mobile est maintenue en position par coincement par rapport à un guide sur lequel elle se déplace. Le serrage d'un écrou favorisant ce coincement. According to another characteristic, the movable jaw is held in position by wedging with respect to a guide on which it moves. Tightening a nut favoring this jamming.

Suivant une autre caractéristique, au repos, le maintien en posit'oss de la mâchoire mobile est assuré par un ressort qui favorise l'effet de coincement. According to another characteristic, at rest, the posit'oss of the movable jaw is maintained by a spring which promotes the wedging effect.

Ces caractéristiques et d'autres, ressortiront de la description qui suit. These and other characteristics will become apparent from the description which follows.

Pour fixer l'objet de l'invention sans toutefois le limiter dans le dessin annexé. To fix the subject of the invention without however limiting it in the appended drawing.

La figure 1 est une vue de face de la clé avec une coupe de la mâchoire mobile en position d'écartement maximum. Figure 1 is a front view of the key with a section of the movable jaw in the position of maximum separation.

La figure 2 est une vue de face de la mâchoire mobile seule. Figure 2 is a front view of the movable jaw alone.

La figure 3 est une vue suivant F de la mâchoire mobile seule
La figure 4 est une vue de face du loquet seul.
Figure 3 is a view along F of the movable jaw alone
Figure 4 is a front view of the latch alone.

La figure 5 est une vue suivant F du loquet seul. Figure 5 is a view along F of the latch alone.

La figure 6 est une coupe suivant AA de l'ensemble: loquet plus mâchoire mobile. Figure 6 is a section along AA of the assembly: latch plus movable jaw.

La figure 7 est une vue en coupe partielle de la mâchoire mobile sur le guide, d'une variante comportant l'adjonction d'une vis de blocage
Afin de rendre plus concrèt l'objet de l'invention, nous le décrivons maintenant sous les formes non limitatives de réalisation illustrées aux figures du dessin.
Figure 7 is a partial sectional view of the movable jaw on the guide, of a variant comprising the addition of a locking screw
In order to make the object of the invention more concrete, we now describe it in the nonlimiting embodiments illustrated in the figures of the drawing.

Telle qu'elle est représentée à la figure 1, la clé comporte un manche (la) prolongé par un guide (lb) qui est solidaire d'une mâchoire fixe (lc). As shown in Figure 1, the key has a handle (la) extended by a guide (lb) which is secured to a fixed jaw (lc).

Sur le guide (lb), vient se positionner une mâchoire mobile (4) vérouillée par le loquet (5) dont la face bombée est moletée. On the guide (lb), is positioned a movable jaw (4) locked by the latch (5) whose curved face is knurled.

Le loquet est rendu solidaire de la base de la mâchoire mobile par trois vis (6a,6b,6c) comme le montre la figure 6. The latch is secured to the base of the movable jaw by three screws (6a, 6b, 6c) as shown in Figure 6.

La mâchoire mobile peut comme nous le voyons sur la figure 1, se déplacer librement par glissement de part et d'autre du guide (lb). The movable jaw can as we see in Figure 1, move freely by sliding on either side of the guide (lb).

I1 faut à un certain moment pouvoir arrêter le glissement de la mâchoire mobile le long du guide, c'est ici qu'apparait le phénomène de coincement, pour ce faire, la face (4a) de la mâchoire mobile et la face (5a) du loquet forment un faible angle (20 environ) par rapport à l'axe BB' de la mâchoire- mobile.  I1 must at some point be able to stop the sliding of the movable jaw along the guide, it is here that the phenomenon of jamming appears, to do this, the face (4a) of the movable jaw and the face (5a) of the latch form a small angle (about 20) relative to the axis BB 'of the movable jaw.

Par ailleurs, dans un trou fileté (4b) de la mâchoire mobile, une vis (7) comprime un ressort (8) qui pousse une bille (9) qui en s'appuyant sur la face avant du guide (lb), a tendance à coincer l'ensemble mâchoire mobile (4) plus loquet (5) sur le guide (lb). Furthermore, in a threaded hole (4b) of the movable jaw, a screw (7) compresses a spring (8) which pushes a ball (9) which, by pressing on the front face of the guide (lb), tends wedging the movable jaw assembly (4) plus latch (5) on the guide (lb).

On s'aperçoit qu'en serrant ou desserrant un écrou avec la clé, on a tendance à accentuer l'action du ressort (8), donc à augmenter le coincement de la mâchoire mobile qui reste en position sur le guide (lb). We realize that by tightening or loosening a nut with the key, we tend to accentuate the action of the spring (8), therefore increasing the jamming of the movable jaw which remains in position on the guide (lb).

Pour faire varier l'écartement entre les mâchoires, il suffit d'appuyer avec le pouce sur la partie moletée du loquet (5) ce qui contrecarre la pression du ressort (8) et permet le glissement de la mâchoire mobile le long du guide (lb). On voit que pour resserrer les mâchoires, il faut appuyer sur la partie (5b) du loquet et pour les écarter, il faut appuyer sur la partie (5c). To vary the spacing between the jaws, simply press with your thumb on the knurled part of the latch (5) which counteracts the pressure of the spring (8) and allows the movable jaw to slide along the guide ( lb). We see that to tighten the jaws, you must press on the part (5b) of the latch and to move them apart, you must press on the part (5c).

I1 est possible d'envisager que la mâchoire mobile (4) et son loquet (5) ne fassent qu'une seule pièce, mais, il faut alors prévoir son accès au montage sur le guide (lb), soit en mettant un manche droit, soitêen prévoyant un manche rapporté après montage de la mâchoire mobile. I1 is possible to envisage that the movable jaw (4) and its latch (5) make only one piece, but, it is then necessary to provide its access to the assembly on the guide (lb), either by putting a straight handle , either by providing an added handle after mounting the movable jaw.

La face avant du guide (lb) peut être strillée pour éviter le dérapage de la mâchoire mobile au moment du serrage ou du désserrage. The front face of the guide (lb) can be streaked to prevent the movable jaw from slipping when tightening or loosening.

Dans une variante de réalisation illustrée à la figure 7, l'effet de coincement au repos peut être accentué par la pression de la vis (10) passant à travers le loquet (5) et s'appuyant sar la face arrière du guide (lb). In an alternative embodiment illustrated in FIG. 7, the jamming effect at rest can be accentuated by the pressure of the screw (10) passing through the latch (5) and pressing on the rear face of the guide (lb ).

L'usage de cette clé est fort simple: le manche (la) étant tenu fermement en main, le pouce est posé sur la partie moletée du loquet (5), on écarte les mâchoires puis la clé est posée sur l'écrou, le pouce serre en poussant sur (5b) la mâchoire mobile contre la face correspondante de l'écrou, il suffit alors de lâcher et de serrer ou déserrer l'écrou. The use of this key is very simple: the handle (la) being held firmly in hand, the thumb is placed on the knurled part of the latch (5), the jaws are moved aside then the key is placed on the nut, the thumb tightens by pushing on (5b) the movable jaw against the corresponding face of the nut, it is then enough to let go and tighten or loosen the nut.

Cette clé peut avantageusement remplacer un jeu de plusieurs clés simples, elle peut également remplacer les autres clés d'un maniement moins facile.  This key can advantageously replace a set of several simple keys, it can also replace the other keys with less easy handling.

Claims (4)

REVENDICATIONS 1 - Clé de serrage à mâchoire mobile avec blocage en position de la mâchoire mobile par coincement, comportant un corps formant levier de manoeuvre (la), mâchoire fixe (lc) et possédant un guide (lb) sur lequel se déplace une mâchoire mobile (4) maintenue sur le guide par un loquet (5); la clé est caractérisée en ce que la mâchoire mobile est maintenue en position par rapport à la mâchoire fixe par coincement des deux faces parallèles (4a et 5a) sur le guide (lB). 1 - Tightening wrench with movable jaw with locking in position of the movable jaw by wedging, comprising a body forming an operating lever (la), fixed jaw (lc) and having a guide (lb) on which a movable jaw ( 4) held on the guide by a latch (5); the key is characterized in that the movable jaw is held in position relative to the fixed jaw by wedging the two parallel faces (4a and 5a) on the guide (Ib). 2 - Clé de serrage suivant la revendication 1 caractérisée en ce que le coincement de la mâchoire mobile (4) sur le guide (lb) est favorisé au repos par une vis (7) comprimant un ressort (8) poussant une bille (9) qui s'appuie sur la face avant du guide (lb) 2 - Wrench according to claim 1 characterized in that the jamming of the movable jaw (4) on the guide (lb) is favored at rest by a screw (7) compressing a spring (8) pushing a ball (9) which rests on the front face of the guide (lb) 3 - Clé de serrage suivant les revendications 1 et 2 caractérisée en ce que le serrage ou le désserrage d'un écrou favorise le coincement de la mâchoire mobile (4) sur le guide (lb). 3 - Tightening wrench according to claims 1 and 2 characterized in that the tightening or loosening of a nut promotes the jamming of the movable jaw (4) on the guide (lb). 4 - Clé de serrage suivant les revendications 1 et 2 caractérisée en ce que le déplacement de la mâchoire mobile (4) le long du guide (lb) est obtenu par une pression du pouce de l'utilisateur sur les parties (5b) ou (5c) du loquet (5) suivant qu'il veut approcher ou ecarter les mâchoires.  4 - Tightening key according to claims 1 and 2 characterized in that the displacement of the movable jaw (4) along the guide (lb) is obtained by pressing the thumb of the user on the parts (5b) or ( 5c) of the latch (5) according to whether he wants to approach or move aside the jaws.
FR8005006A 1980-03-06 1980-03-06 Adjustable spanner with slidable cantilever jaw - has jaw threaded on cranked neck lever via rectangular window and is locked by wedging Withdrawn FR2477457A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8005006A FR2477457A1 (en) 1980-03-06 1980-03-06 Adjustable spanner with slidable cantilever jaw - has jaw threaded on cranked neck lever via rectangular window and is locked by wedging

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8005006A FR2477457A1 (en) 1980-03-06 1980-03-06 Adjustable spanner with slidable cantilever jaw - has jaw threaded on cranked neck lever via rectangular window and is locked by wedging

Publications (1)

Publication Number Publication Date
FR2477457A1 true FR2477457A1 (en) 1981-09-11

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Family Applications (1)

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FR8005006A Withdrawn FR2477457A1 (en) 1980-03-06 1980-03-06 Adjustable spanner with slidable cantilever jaw - has jaw threaded on cranked neck lever via rectangular window and is locked by wedging

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FR (1) FR2477457A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6938525B2 (en) 2001-07-23 2005-09-06 Irwin Industrial Tool Company One hand pipe wrench

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6938525B2 (en) 2001-07-23 2005-09-06 Irwin Industrial Tool Company One hand pipe wrench

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