{"id":101416,"date":"2026-11-04T16:17:56","date_gmt":"2026-11-04T08:17:56","guid":{"rendered":"https:\/\/wheelchairsfactory.com\/?p=101416"},"modified":"2026-11-04T16:18:00","modified_gmt":"2026-11-04T08:18:00","slug":"wheelchair-toe-in-toe-out-alignment","status":"publish","type":"post","link":"https:\/\/wheelchairsfactory.com\/fr\/wheelchair-toe-in-toe-out-alignment\/","title":{"rendered":"Pincement et ouverture des roues de fauteuil roulant : lire l'alignement des roues"},"content":{"rendered":"

<\/p>\n\n

Un fauteuil roulant manuel commence \u00e0 se comporter diff\u00e9remment : il d\u00e9rive, un pneu s'use de fa\u00e7on in\u00e9gale, ou une roue arri\u00e8re ne semble plus parall\u00e8le au cadre. Vous voulez savoir s'il s'agit d'un pincement ou d'un parall\u00e9lisme des roues arri\u00e8re du fauteuil roulant, d'un carrossage, ou d'autre chose, et ce qu'il faut noter avant de demander une intervention.<\/p>\n\n

Toe-in and toe-out describe whether the rear wheels point slightly toward or away from each other relative to the direction of travel. They are not the same as camber, which describes how the wheel face tilts when viewed from the front. Read the terms carefully, record what you observe, and leave correction to a service professional working from the named model's manual.<\/strong><\/p>\n\n

Pincement et parall\u00e9lisme des roues arri\u00e8re du fauteuil roulant : ce que d\u00e9crivent le pincement et le parall\u00e9lisme<\/h2>\n\n\n
\"Roue<\/figure>\n\n\n\n\n

<\/p>\n\n

Toe-in and toe-out are directional terms. They describe the relationship between the rear wheels and the line the chair travels along, not the shape of the wheel or the width of the chair. In a toe-in condition, the front edges of the rear wheels sit closer together than the rear edges, so each wheel points slightly inward toward the chair's centerline. In a toe-out condition, the front edges sit farther apart, so each wheel points slightly outward. The Queensland Health manual wheelchair document supplied for this article uses these terms to describe rear-wheel direction, and that is the sense used here.<\/p>\n\n

Pour un technicien de service d'un revendeur, un utilisateur ou un coordinateur de maintenance, l'int\u00e9r\u00eat de cette distinction est organisationnel. Le pincement et le parall\u00e9lisme vous donnent un vocabulaire pour une observation pr\u00e9cise : les roues arri\u00e8re ne suivent pas une trajectoire parall\u00e8le \u00e0 la ligne de d\u00e9placement pr\u00e9vue. Cette observation peut ensuite \u00eatre d\u00e9crite dans une demande d'intervention sans deviner une cause. Cela permet aussi de garder la conversation \u00e0 l'\u00e9cart de sujets sans rapport avec les roues arri\u00e8re. Le fait qu'un axe \u00e0 d\u00e9montage rapide s'adapte \u00e0 son logement, par exemple, est une question d'ajustement distincte trait\u00e9e dans l'article de preuve sur l'ajustement de l'axe \u00e0 d\u00e9montage rapide<\/a>; l'ajustement de l'axe et l'orientation de la roue ne sont pas interchangeables.<\/p>\n\n

A useful way to think about it is that toe is a relationship measured in the horizontal plane, as though you were looking down on the chair from above. Two wheels can be the same size, mounted at the same height, and fitted with the same tires, yet still point slightly toward or away from each other. The term describes that pointing relationship. It does not by itself tell you whether the condition is within the manufacturer's specification, whether it is adjustable on that model, or whether it is the reason a chair feels different to push. Those are separate questions that belong with the model documentation and a qualified service review.<\/p>\n\n

This is also why toe should not be treated as a synonym for "the rear wheels are wrong." Some rear-wheel configurations are built to a defined setting, and the setting is part of the chair's design. A chair may leave the factory with a deliberate rear-wheel geometry, and a later observation of a slight inward or outward angle is not automatically a fault. The reader's task is to recognize the term, use it accurately in a record, and route the question to the right person rather than to attempt a correction. Keeping that boundary clear protects both the user and the person who will eventually inspect the chair, because a service review that starts from an accurate description is easier to carry out than one that starts from a guess.<\/p>\n\n

Distinguer le pincement du carrossage<\/h2>\n\n\n
\"Vue<\/figure>\n\n\n\n\n

<\/p>\n\n

Camber and toe are often confused because both involve the rear wheels and both can be described as an "angle." They are different measurements taken from different viewpoints. Camber describes how the wheel face tilts when you stand in front of the chair and look at it head-on: the top of the wheel may lean inward toward the seat or outward away from it. Toe describes the direction the wheel points when you look from above. A chair can have a pronounced camber and still have its wheels pointing straight ahead along the travel line, and a chair with upright wheels can still have a toe condition. Neither term substitutes for the other.<\/p>\n\n

Pincement des roues versus carrossage<\/h3>\n\n

La diff\u00e9rence pratique r\u00e9side dans la direction d'observation et dans la question \u00e0 laquelle chaque terme r\u00e9pond. Le pincement r\u00e9pond \u00e0 la question : les roues arri\u00e8re pointent-elles le long de la m\u00eame ligne que celle sur laquelle le fauteuil roule, ou sont-elles l\u00e9g\u00e8rement inclin\u00e9es vers l'int\u00e9rieur ou l'ext\u00e9rieur l'une par rapport \u00e0 l'autre ? Le carrossage r\u00e9pond \u00e0 la question : de combien chaque face de roue s'\u00e9carte-t-elle de la verticale vue de face ? Les deux sont consign\u00e9s s\u00e9par\u00e9ment car ils d\u00e9crivent une g\u00e9om\u00e9trie diff\u00e9rente, et une note d'intervention qui les m\u00e9lange peut orienter la v\u00e9rification dans la mauvaise direction. Le tableau ci-dessous expose la distinction sous une forme qu'un coordinateur de service peut utiliser lors de la r\u00e9daction d'un signalement.<\/p>\n\n\n\n\n
Observation<\/th>Point de vue<\/th>Ce qu'il d\u00e9crit<\/th>Ce qu'elle n'\u00e9tablit pas<\/th><\/tr><\/thead>\n
Pincement vers l'int\u00e9rieur<\/td>Vue de dessus<\/td>Les bords avant des roues arri\u00e8re sont plus rapproch\u00e9s que les bords arri\u00e8re ; les roues pointent l\u00e9g\u00e8rement vers l'int\u00e9rieur<\/td>Whether the setting is within the model's specification, or that it is adjustable<\/td><\/tr>\n\n
Pincement vers l'ext\u00e9rieur<\/td>Vue de dessus<\/td>Les bords avant des roues arri\u00e8re sont plus \u00e9cart\u00e9s que les bords arri\u00e8re ; les roues pointent l\u00e9g\u00e8rement vers l'ext\u00e9rieur<\/td>La cause d'un changement de comportement, ou la n\u00e9cessit\u00e9 d'une correction<\/td><\/tr>\n\n
Carrossage<\/td>Vue de face<\/td>De combien chaque face de roue s'incline par rapport \u00e0 la verticale, vers l'int\u00e9rieur ou vers l'ext\u00e9rieur<\/td>La direction du pincement, le suivi ou une cause d'usure des pneus<\/td><\/tr>\n\n
Largeur arri\u00e8re totale<\/td>Vue de face ou de l'arri\u00e8re<\/td>L'\u00e9cart ext\u00e9rieur entre les deux roues arri\u00e8re<\/td>Les valeurs de pincement ou de carrossage, ou le passage d'une porte<\/td><\/tr>\n\n<\/tbody>\n<\/table>\n\n

Consigner les observations pour l'intervention<\/h3>\n\n

When you write up a concern, keep the two categories in separate sentences. "The rear wheels appear to point inward when viewed from above" is a toe observation. "The top of the right rear wheel leans inward more than the left when viewed from the front" is a camber observation. Neither sentence should include a diagnosis, a proposed adjustment, or a number you have not measured with the method the manual specifies. If you have a photograph or a note from the user about when the change was first noticed, attach it to the record. The goal is a description the service team can act on, not a conclusion the observer is not positioned to reach.<\/p>\n\n

It also helps to name the viewpoint in the record itself, because the same chair can look different depending on where the observer stands. A note that says "viewed from above, the gap between the front edges of the rear tires looks narrower than the gap between the rear edges" is more useful than a bare statement that the wheels look wrong. The first version tells the service team what was seen and from where; the second leaves them to reconstruct the observation. That small habit of naming the viewpoint is what keeps a toe note from being mistaken for a camber note when the record is read later by someone who was not present.<\/p>\n\n

Remarquer et consigner les changements possibles<\/h2>\n\n\n
\"Un<\/figure>\n\n\n\n\n

<\/p>\n\n

Un changement dans la fa\u00e7on dont un fauteuil roulant manuel roule m\u00e9rite d'\u00eatre consign\u00e9, mais l'observation n'est pas la m\u00eame chose que la cause. Un fauteuil qui tire d'un c\u00f4t\u00e9, qui semble plus difficile \u00e0 pousser ou qui pr\u00e9sente une usure in\u00e9gale des pneus peut avoir un probl\u00e8me d'orientation de la roue arri\u00e8re, ou bien avoir une explication enti\u00e8rement diff\u00e9rente : une diff\u00e9rence de pression des pneus, un souci de frein ou de roulette, un probl\u00e8me de cadre ou d'essieu, ou un changement de la surface sur laquelle on circule. Les sources fournies ne permettent pas de nommer une cause unique \u00e0 partir d'un sympt\u00f4me, et cet article ne le fait pas. Ce que les sources permettent, c'est un relev\u00e9 rigoureux qui donne \u00e0 un professionnel de l'entretien les informations n\u00e9cessaires pour enqu\u00eater.<\/p>\n\n

Un relev\u00e9 pratique consigne plusieurs \u00e9l\u00e9ments. Notez ce qui a chang\u00e9 et quand l'utilisateur ou l'aidant l'a remarqu\u00e9 pour la premi\u00e8re fois, en termes simples. Notez si le changement est apparu apr\u00e8s un \u00e9v\u00e9nement pr\u00e9cis, comme un transport, le remplacement d'une pi\u00e8ce ou une r\u00e9paration, sans supposer que cet \u00e9v\u00e9nement en est la cause. Notez ce que l'utilisateur ressent r\u00e9ellement : le fauteuil d\u00e9rive-t-il syst\u00e9matiquement dans une direction, semble-t-il diff\u00e9rent seulement sur certaines surfaces, le pneu pr\u00e9sente-t-il une usure sur un bord ? Photographiez les roues arri\u00e8re vue de dessus et vue de face si vous pouvez le faire en toute s\u00e9curit\u00e9, et indiquez quel c\u00f4t\u00e9 est lequel. Consignez l'\u00e9tat des pneus et, lorsque l'utilisateur le v\u00e9rifie, la pression des pneus, car des diff\u00e9rences de pression peuvent affecter la fa\u00e7on dont un fauteuil roule. Gardez le nom du mod\u00e8le, le num\u00e9ro de s\u00e9rie et toute r\u00e9vision du manuel que vous poss\u00e9dez, car l'examen par le service d\u00e9pendra de la configuration exacte.<\/p>\n\n

It also helps to separate the user's experience from the observer's interpretation. "It feels like it pulls left" is the user's report and should be recorded as such. "The left rear wheel looks angled" is an observation and should be recorded separately. Neither should be rewritten as "the toe is out" unless someone has actually checked the alignment using the method the model's manual specifies. This separation matters because a service team may need to rule out several possibilities, and a record that has already decided the cause can narrow the investigation prematurely. The record's job is to preserve evidence, not to close the question.<\/p>\n\n

Timing is part of that evidence. A note that says only "the chair pulls" leaves the service team unable to tell whether the behavior is new, gradual, or long-standing. Recording when the user first noticed the change, whether it has stayed the same or worsened, and whether it appears on every surface or only some of them gives the review a starting point. None of those details identifies a cause, and none of them should be written as one. They simply describe the pattern, which is what a technician needs before deciding which checks to run first.<\/p>\n\n

Comparer deux p\u00e9rim\u00e8tres de sources nomm\u00e9s<\/h2>\n\n\n
\"Un<\/figure>\n\n\n\n\n

<\/p>\n\n

The two references supplied for this article do different jobs, and keeping their scopes separate is part of reading the alignment correctly. The Queensland Health manual wheelchair document is a health-sector publication that defines the terms toe-in and toe-out as they apply to rear-wheel direction. It gives the reader a shared vocabulary and a conceptual description. It is not a service manual for a specific chair, and it does not establish that any particular model's rear wheels are adjustable, what the correct setting is, or how a correction should be performed. Its value here is terminological: it tells you what the words mean.<\/p>\n\n

The second reference, the EasyMed online document, is a named wheelchair manual. A manufacturer's manual speaks to the model or models it covers, and its alignment and service content is scoped to those models. That scope is the important part. A statement in a named manual does not transfer to a different chair, a different rear-wheel configuration, or a different model year. It also does not authorize a reader to perform an adjustment that the manual assigns to service personnel. The comparison below sets out the two scopes side by side.<\/p>\n\n\n\n\n
Source<\/th>Type<\/th>Ce qu'elle peut \u00e9tayer<\/th>Ce qu'elle ne peut pas \u00e9tablir<\/th><\/tr><\/thead>\n
Document de Queensland Health sur le fauteuil roulant manuel<\/td>Publication du secteur de la sant\u00e9<\/td>D\u00e9finitions de toe-in et toe-out comme termes d'orientation des roues arri\u00e8re<\/td>R\u00e9glages propres au mod\u00e8le, r\u00e9glabilit\u00e9 ou proc\u00e9dures d'entretien<\/td><\/tr>\n\n
Manuel du fauteuil roulant EasyMed<\/td>Manuel d'un fabricant nomm\u00e9<\/td>Contenu relatif \u00e0 l'alignement et \u00e0 l'entretien pour le mod\u00e8le ou les mod\u00e8les couverts<\/td>Applicabilit\u00e9 \u00e0 d'autres mod\u00e8les, configurations ou ann\u00e9es-mod\u00e8les<\/td><\/tr>\n\n<\/tbody>\n<\/table>\n\n

Reading the two together is useful precisely because they do not overlap. The health document gives you the concept and the vocabulary; the named manual gives you the model-scoped service context. Neither one tells you that every manual wheelchair has adjustable rear-wheel alignment, that a particular setting is correct for a given user, or that a symptom has a particular cause. Those questions require the exact model's documentation and a qualified service review. When a reader asks whether a chair's rear wheels "should" be set a certain way, the honest answer is that it depends on the model and on what the manufacturer specifies, and that the specification is found in the documentation for that chair, not in a general article.<\/p>\n\n

This is why a general article and a model manual should not be read as if they carried the same authority. The health publication is useful for understanding what a term means and for describing an observation in shared language. The named manual is useful for the chair it covers, and only for that chair. A dealer who keeps both kinds of document in view can answer a user's question about terminology without implying that a general definition settles a model-specific service question. That separation is not a technicality; it is what stops a conceptual explanation from being mistaken for an instruction.<\/p>\n\n

Organiser un examen d'entretien propre au mod\u00e8le<\/h2>\n\n\n
\"Gros<\/figure>\n\n\n\n\n

<\/p>\n\n

The final step is a handover, not a repair attempt. Gather the information a service professional will need and pass it on with a clear question. The package should include the chair's model name and serial number, the rear-wheel configuration as fitted, any manual or documentation you have for that model, the date and circumstances when the change was first noticed, the user's description of how the chair behaves, and any photographs or tire observations you recorded. If a part was replaced or the chair was transported recently, note that too, without asserting a link. The service team can then check the alignment against the model's specification and decide what, if anything, needs attention.<\/p>\n\n

It is worth being explicit about what this article does not provide. It does not give adjustment steps, torque values, target settings, or a procedure for correcting toe-in or toe-out. It does not say that every manual wheelchair's rear-wheel alignment is adjustable, and it does not say that all chairs should share one setting. Those are model-specific and service-specific matters. A dealer technician with the correct documentation and tools is in a position to evaluate them; a user or coordinator reading a general article is not, and attempting a correction without the model's procedure risks introducing a new problem. The same discipline applies to related rear-wheel questions: fit, alignment, and service are separate checks, and each should be routed to the person or document that covers it.<\/p>\n\n

For a dealer or service coordinator, the review is also a chance to confirm what the record should contain next time. If the chair's documentation includes alignment information, note where it is kept so the next concern can be checked against the right source. If the model's manual assigns alignment work to service personnel, record that so the expectation is clear to the user. The aim is a repeatable process: observe, record, hand over, and let the qualified review determine the outcome.<\/p>\n\n

Une question claire aide la transmission \u00e0 bien se d\u00e9rouler. Au lieu de demander si le pincement est incorrect, demandez si l'alignement des roues arri\u00e8re peut \u00eatre v\u00e9rifi\u00e9 par rapport aux sp\u00e9cifications de ce mod\u00e8le, et incluez l'observation qui a motiv\u00e9 la demande. Cette formulation laisse la d\u00e9cision \u00e0 la personne qui dispose de la documentation et des outils, tout en rendant la pr\u00e9occupation suffisamment pr\u00e9cise pour agir. Elle laisse aussi la possibilit\u00e9 \u00e0 la revue de conclure que l'alignement est conforme aux sp\u00e9cifications et que le changement signal\u00e9 a une autre explication, ce qui est un r\u00e9sultat l\u00e9gitime plut\u00f4t qu'une demande \u00e9chou\u00e9e.<\/p>\n\n

Questions fr\u00e9quentes<\/h2>\n\n\n
\"Accoudoirs<\/figure>\n\n\n\n\n

<\/p>\n\n

Le pincement est-il la m\u00eame chose que le carrossage des roues ?<\/strong><\/p>\n\n

Non. Le pincement d\u00e9crit les roues arri\u00e8re pointant l\u00e9g\u00e8rement l'une vers l'autre lorsqu'on les regarde d'en haut, le long de la direction de d\u00e9placement. Le carrossage d\u00e9crit l'inclinaison de la face de la roue par rapport \u00e0 la verticale lorsqu'on la regarde de face. Ce sont des mesures diff\u00e9rentes prises depuis des points de vue diff\u00e9rents, et un dossier de service doit les garder s\u00e9par\u00e9es.<\/p>\n\n

Un fauteuil roulant peut-il tirer d'un c\u00f4t\u00e9 pour plus d'une raison ?<\/strong><\/p>\n\n

Oui. Un tirage d'un c\u00f4t\u00e9 est un sympt\u00f4me, et les sources fournies ne permettent pas d'en nommer une cause unique. Les diff\u00e9rences de pression des pneus, les probl\u00e8mes de frein ou de roulette, les probl\u00e8mes de cadre ou d'essieu, l'\u00e9tat de la surface et la direction des roues arri\u00e8re figurent parmi les possibilit\u00e9s qu'un professionnel du service peut devoir envisager. Consignez ce que l'utilisateur ressent et quand cela a commenc\u00e9, et laissez la revue enqu\u00eater.<\/p>\n\n

Toutes les roues doivent-elles avoir le m\u00eame alignement ?<\/strong><\/p>\n\n

Not necessarily, and this article cannot set a universal target. Rear-wheel alignment is model-specific, and the correct setting for a given chair is found in that model's documentation and confirmed by a qualified service review. Do not assume that every manual wheelchair has adjustable alignment or that one setting applies across models.<\/p>\n\n

Conclusion<\/h2>\n\n\n
\"Fauteuil<\/figure>\n\n\n\n\n

Toe-in and toe-out describe rear-wheel direction; camber describes wheel tilt. Record what you observe, keep the terms separate, and hand the question to a service professional using the exact model's documentation.<\/p>","protected":false},"excerpt":{"rendered":"

Pincement et ouverture des roues du fauteuil roulant : comprendre le pincement et l'ouverture des roues d'un fauteuil roulant, les distinguer du carrossage et consigner les probl\u00e8mes d'alignement des roues arri\u00e8re pour un professionnel qualifi\u00e9<\/p>","protected":false},"author":1,"featured_media":101265,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"article_video_url":"https:\/\/www.youtube.com\/watch?v=PHMkqq_ee3s","article_video_title":"Rear Wheel Camber on Your Wheelchair","footnotes":""},"categories":[22],"tags":[],"class_list":["post-101416","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-service-spare-parts"],"acf":{"article_video_url":"https:\/\/www.youtube.com\/watch?v=PHMkqq_ee3s","article_video_title":"Rear Wheel Camber on Your Wheelchair"},"_links":{"self":[{"href":"https:\/\/wheelchairsfactory.com\/fr\/wp-json\/wp\/v2\/posts\/101416","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wheelchairsfactory.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wheelchairsfactory.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wheelchairsfactory.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wheelchairsfactory.com\/fr\/wp-json\/wp\/v2\/comments?post=101416"}],"version-history":[{"count":1,"href":"https:\/\/wheelchairsfactory.com\/fr\/wp-json\/wp\/v2\/posts\/101416\/revisions"}],"predecessor-version":[{"id":101430,"href":"https:\/\/wheelchairsfactory.com\/fr\/wp-json\/wp\/v2\/posts\/101416\/revisions\/101430"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wheelchairsfactory.com\/fr\/wp-json\/wp\/v2\/media\/101265"}],"wp:attachment":[{"href":"https:\/\/wheelchairsfactory.com\/fr\/wp-json\/wp\/v2\/media?parent=101416"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wheelchairsfactory.com\/fr\/wp-json\/wp\/v2\/categories?post=101416"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wheelchairsfactory.com\/fr\/wp-json\/wp\/v2\/tags?post=101416"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}