FR2685407A1 - Safety screw and tool for fitting/removing this screw - Google Patents

Safety screw and tool for fitting/removing this screw Download PDF

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Publication number
FR2685407A1
FR2685407A1 FR9115701A FR9115701A FR2685407A1 FR 2685407 A1 FR2685407 A1 FR 2685407A1 FR 9115701 A FR9115701 A FR 9115701A FR 9115701 A FR9115701 A FR 9115701A FR 2685407 A1 FR2685407 A1 FR 2685407A1
Authority
FR
France
Prior art keywords
slots
head
fitting
screw
fixing member
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
Application number
FR9115701A
Other languages
French (fr)
Inventor
Villard Gerard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR9115701A priority Critical patent/FR2685407A1/en
Publication of FR2685407A1 publication Critical patent/FR2685407A1/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)

Abstract

The invention relates to a fixing member made up of a head (3) and of a body (2) and to an associated device for helping with installation for fitting, tightening or loosening such a member. According to the invention, the head (3) of the member includes at least two slots (4a, 4b) located in or symmetrical with a vertical plane (AA') passing through the axis of the body (2) of the member, the said slots (4a, 4b) being inclined on either side of the axis of the member and assuming a divergent appearance, preferably at the top of the head of the member in the direction of its bearing face (6), the said head (3) of the member being temporarily associated, for the operations of fitting or removal, with a fitting, tightening, installation device of which that end which comes into contact with the slots (4a, 4b) of the head (3) of the member is homothetic with the profile and with the direction of the said slots (4a, 4b). Application to safety screws.

Description

Vis de sécurité et outil de montaqe-démontaqe pour cette vis.Safety screw and assembly-disassembly tool for this screw.

La présente invention concerne un organe de fixation du type vis, boulon, goujon, constitué d'une tête et d'un corps et le dispositif d'aide à la mise en place associé pour la pose, le serrage ou le desserrage d'un tel organe.The present invention relates to a fixing member of the screw, bolt, stud type, consisting of a head and a body and the associated positioning aid device for fitting, tightening or loosening a such organ.

Il existe un grand nombre d'organes de fixation, vis rarker, vis de pression, etc qui, en fonction de leur destination ou de leur fonction, présentent des caractéristiques diverses.There are a large number of fasteners, rarker screws, pressure screws, etc. which, depending on their destination or their function, have various characteristics.

Ces organes de fixation s'utilisent en coopération avec des outils de pose tels que des tournevis que l'on trouve communément dans le commerce, ce qui rend leur pose et leur dépose aisées. De plus, en raison de la configuration de l'organe de fixation, souvent un simple outil à extrémité plate permet la désolidarisation de l'organe de son support.These fasteners are used in cooperation with installation tools such as screwdrivers that are commonly found in the trade, which makes their installation and removal easy. In addition, due to the configuration of the fixing member, often a simple tool with a flat end allows the member to be detached from its support.

Or, aujourd'hui, pour tous les produits destinés notamment à être placés en extérieur, il devient nécessaire d'utiliser des organes de fixation inviolables.However, today, for all products intended in particular to be placed outdoors, it becomes necessary to use tamper-proof fasteners.

Le but de la présente invention est donc de proposer un organe de fixation qui ne peut pas être désolidarisé de son support sans utiliser le dispositif de mise en place qui lui est associe. The object of the present invention is therefore to propose a fixing member which cannot be detached from its support without using the positioning device which is associated with it.

L'invention concerne à cet effet un organe de fixation du type vis, boulon, goujon, constitué d'une tête et d'un corps et le dispositif d'aide à la mise en place associé pour la pose, le serrage ou le desserrage d'un tel organe, caractérisés en ce que la tête de l'organe comporte au moins deux fentes, disposées dans, ou symétriques à, un plan vertical passant par l'axe du corps de l'organe, lesdites fentes étant inclinées de part et d'autre de l'axe de l'organe en affectant une allure divergente de préférence du sommet de la tête de l'organe en direction de sa face d'appui, ladite tête de l'organe étant associée temporairement pour les opérations de pose ou de dépose à un dispositif de pose, de serrage, de mise en place dont l'extrémité, qui vient en contact avec les fentes de la tête de l'organe, est homothétique au profil et à la direction desdites fentes.To this end, the invention relates to a fixing member of the screw, bolt, stud type, consisting of a head and a body and the associated positioning aid device for fitting, tightening or loosening. of such a member, characterized in that the head of the member comprises at least two slots, arranged in, or symmetrical to, a vertical plane passing through the axis of the body of the member, said slots being inclined from one side and on the other side of the axis of the organ by assigning a diverging shape preferably from the top of the head of the organ towards its bearing face, said head of the organ being temporarily associated for the operations of fitting or removal to a fitting, clamping, positioning device the end of which, which comes into contact with the slots of the head of the member, is homothetic to the profile and to the direction of said slots.

Selon une autre caractéristique de l'invention, les fentes de la tête de l'organe sont à profil interne concave, ou convexe, ou plan.According to another characteristic of the invention, the slots of the head of the member have a concave, or convex, or planar internal profile.

D'autres caractéristiques et avantages de l'invention apparaîtront encore à la lecture de la description qui suit et des dessins joints, lesquels description et dessins sont donnés surtout à titre d'exemples. Dans ces dessins
la figure 1 représente une vue de côté d'un organe de
fixation conforme à l'invention dont le profil interne
des fentes est plan; la figure 2 représente un organe
de fixation conforme à l'invention dont le profil
interne des fentes est concave; la figure 3 représente
une vue de dessus de l'organe de fixation de la figure
1; la figure 4 représente une série d'exemples de
formes des fonds des fentes de l'organe de fixation de
la figure 1.Other characteristics and advantages of the invention will become apparent on reading the description which follows and the accompanying drawings, which description and drawings are given mainly by way of examples. In these drawings
Figure 1 shows a side view of a
fixing according to the invention whose internal profile
slots is flat; Figure 2 shows an organ
of fixing according to the invention whose profile
internal of the slots is concave; Figure 3 shows
a top view of the fixing member of the figure
1; Figure 4 shows a series of examples of
shapes of the bottoms of the slots of the fixing member
Figure 1.

Conformément à la figure 1, l'organe de fixation est constitué d'un corps 2 (partiellement représenté) et d'une tête 3 solidaire de ce corps et affectant dans l'exemple représenté une forme renflée. Cette tête 3 est munie d'au moins deux fentes 4a et 4b qui sont disposées, tel que représenté, symétriques au plan vertical AA' passant par l'axe du corps 2 de l'organe de fixation, c'est-à-dire opposées. Cette disposition est la configuration la plus simple qui puisse être envisagée. On peut également imaginer trois fentes écartées de 1200 l'une par rapport à l'autre ou encore un plus grand nombre de fentes. Ces fentes sont inclinées de part et d'autre de l'axe de l'organe de fixation 1 et présentent une allure divergente de préférence du sommet de la tête de l'organe en direction de sa face d'appui 6.Ces fentes sont de préférence séparées au voisinage du centre de la tête de l'organe par un moyen de centrage 5. Ce moyen de centrage peut par exemple être constitué par un élément en relief. Grâce à cette configuration particulière, il est impossible avec un outil classique à extrémité plane, qui est destiné à être utilisé en combinaison avec une surface d'appui plane, de pouvoir visser ou dévisser l'organe de fixation. En effet, l'outil associé à l'organe de fixation tel que décrit doit présenter une surface d'appui sur la tête de l'organe qui ne soit pas plane et qui soit répartie en au moins deux points de sa surface. Cette contrainte est nécessaire pour pouvoir exercer le couple de forces nécessaire au vissage ou au dévissage de l'organe de fixation. C'est cette configuration particulière et obligatoire du dispositif de pose de dépose ou de mise en place qui rend l'organe de fixation difficilement désolidarisable de son support. En conséquence, le dispositif de pose, de serrage, de mise en place associé à l'organe de fixation doit obligatoirement présenter un profil de l'extrémité qui vient en contact avec les fentes de la '+^te de l'organe qui est homothétique au profil et à la direction desdites fentes.According to Figure 1, the fixing member consists of a body 2 (partially shown) and a head 3 integral with this body and affecting in the example shown a swollen shape. This head 3 is provided with at least two slots 4a and 4b which are arranged, as shown, symmetrical to the vertical plane AA ′ passing through the axis of the body 2 of the fixing member, that is to say opposite. This arrangement is the simplest configuration that can be envisaged. One can also imagine three slots spaced 1200 away from each other or even a larger number of slots. These slots are inclined on either side of the axis of the fixing member 1 and have a diverging appearance preferably from the top of the head of the member towards its bearing face 6.These slots are preferably separated in the vicinity of the center of the head of the member by a centering means 5. This centering means can for example be constituted by an element in relief. Thanks to this particular configuration, it is impossible with a conventional tool with a flat end, which is intended to be used in combination with a flat bearing surface, to be able to screw or unscrew the fixing member. Indeed, the tool associated with the fixing member as described must have a bearing surface on the head of the member which is not planar and which is distributed at at least two points on its surface. This constraint is necessary in order to be able to exert the couple of forces necessary for screwing or unscrewing the fixing member. It is this particular and compulsory configuration of the device for placing, removing or placing which makes the fixing member difficult to separate from its support. Consequently, the fitting, clamping and positioning device associated with the fixing member must necessarily have a profile of the end which comes into contact with the slots of the '+ ^ te of the member which is homothetic to the profile and direction of said slots.

Conformément à la figure 4, la forme du fond des fentes peut être quelconque (rectiligne, triangulaire) 7a courbe, 7b ou 7c. In accordance with FIG. 4, the shape of the bottom of the slots can be any (straight, triangular) 7a curve, 7b or 7c.

L'invention s'applique à tout type d'organe de fixation destiné à être solidarisé à un support. The invention applies to any type of fixing member intended to be secured to a support.

Claims (7)

REVENDICATIONS 1. Organe de fixation du genre vis, boulon, goujon, constitué d'une tête (3) et d'un corps (2) et dispositif d'aide à la mise en place associé pour la pose, le serrage ou le desserrage d'un tel organe, caractérisés en ce que la tête (3) de l'organe comporte au moins deux fentes (4a, 4b), disposées, dans ou symétriques à, un plan vertical (AA') passant par l'axe du corps (2) de l'organe, lesdites fentes (4a, 4b) étant inclinées de part et d'autre de l'axe de l'organe en affectant une allure divergente de préférence du sommet de la tête de l'organe en direction de sa face d'appui (6) , ladite tête (3) de l'organe étant associée temporairement pour les opérations de pose ou de dépose à un dispositif de pose, de serrage, de mise en place dont l'extrémité qui vient en contact avec les fentes (4a, 4b) de la tête (3) de l'organe est homothétique au profil et à la direction desdites fentes (4a, 4b).1. Fixing member of the screw, bolt, stud type, consisting of a head (3) and a body (2) and associated positioning aid device for fitting, tightening or loosening d 'such an organ, characterized in that the head (3) of the organ comprises at least two slots (4a, 4b), arranged in or symmetrical to, a vertical plane (AA') passing through the axis of the body (2) of the member, said slits (4a, 4b) being inclined on either side of the axis of the member by affecting a diverging shape preferably from the top of the head of the member in the direction of its bearing face (6), said head (3) of the member being temporarily associated for fitting or removal operations with a fitting, clamping, positioning device, the end of which comes into contact with the slots (4a, 4b) of the head (3) of the member is homothetic to the profile and the direction of said slots (4a, 4b). 2. Organe selon la revendication 1, caractérisé en ce que les fentes (4a, 4b) de l'organe sont à profil interne concave.2. Device according to claim 1, characterized in that the slots (4a, 4b) of the device have a concave internal profile. 3. Organe selon la revendication 1, caractérisé en ce que les fentes (4a, 4b) de l'organe sont à profil interne convexe.3. Body according to claim 1, characterized in that the slots (4a, 4b) of the body have a convex internal profile. 4. Organe selon la revendication 1, caractérisé en ce que les fentes (4a, 4b) de l'organe sont à profil interne plan.4. Body according to claim 1, characterized in that the slots (4a, 4b) of the organ are of plan internal profile. 5. Organe selon l'une des revendications 1 à 4, caractérisé en ce que le fond des fentes est de forme quelconque.5. Body according to one of claims 1 to 4, characterized in that the bottom of the slots is of any shape. 6. Organe selon l'une des revendications 1 à 5, caractérisé en ce que les fentes (4a, 4b) de la tête (3) de l'organe de fixation sont séparées au voisinage du centre de ladite tête par un moyen de centrage (5).6. Body according to one of claims 1 to 5, characterized in that the slots (4a, 4b) of the head (3) of the fixing member are separated in the vicinity of the center of said head by a centering means (5). 7. Organe selon la revendication 6, caractérisé en ce que le moyen de centrage (5) est constitué par un élément en relief. 7. Body according to claim 6, characterized in that the centering means (5) consists of an element in relief.
FR9115701A 1991-12-18 1991-12-18 Safety screw and tool for fitting/removing this screw Pending FR2685407A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9115701A FR2685407A1 (en) 1991-12-18 1991-12-18 Safety screw and tool for fitting/removing this screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9115701A FR2685407A1 (en) 1991-12-18 1991-12-18 Safety screw and tool for fitting/removing this screw

Publications (1)

Publication Number Publication Date
FR2685407A1 true FR2685407A1 (en) 1993-06-25

Family

ID=9420167

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9115701A Pending FR2685407A1 (en) 1991-12-18 1991-12-18 Safety screw and tool for fitting/removing this screw

Country Status (1)

Country Link
FR (1) FR2685407A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2015878A (en) * 1932-12-12 1935-10-01 Illinois Tool Works Coupling and driving device
GB542214A (en) * 1939-05-26 1941-12-31 Holo Krome Screw Corp Improvements in or relating to socketed screws
US3269250A (en) * 1964-07-02 1966-08-30 Thomas & Betts Corp Universal screw head
EP0090869A1 (en) * 1982-04-05 1983-10-12 Colman Fasteners Co. Limited Improvements in or relating to screws
US4480514A (en) * 1982-06-17 1984-11-06 Cooper Industries, Inc. Driving tool for tamper resistant screw
DE3701574A1 (en) * 1987-01-21 1988-08-04 Helmut R W Wittmann Screw head with slot

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2015878A (en) * 1932-12-12 1935-10-01 Illinois Tool Works Coupling and driving device
GB542214A (en) * 1939-05-26 1941-12-31 Holo Krome Screw Corp Improvements in or relating to socketed screws
US3269250A (en) * 1964-07-02 1966-08-30 Thomas & Betts Corp Universal screw head
EP0090869A1 (en) * 1982-04-05 1983-10-12 Colman Fasteners Co. Limited Improvements in or relating to screws
US4480514A (en) * 1982-06-17 1984-11-06 Cooper Industries, Inc. Driving tool for tamper resistant screw
DE3701574A1 (en) * 1987-01-21 1988-08-04 Helmut R W Wittmann Screw head with slot

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