轮椅与车辆约束系统的配合

结论：先分清是「运输轮椅」还是「坐在轮椅里乘车」

轮椅进入车辆有两种完全不同的情形：

情形一：运输空轮椅。 使用者转移到车辆座椅上，轮椅折叠或不折叠地放在车内。这时轮椅是货物，要求是固定牢固，不在急刹车或碰撞中成为抛射物。

情形二：使用者坐在轮椅里乘车。 轮椅作为车辆座椅使用。这时轮椅要承担座椅的安全功能，涉及碰撞安全，要求高得多。

多数普通轮椅不适用于第二种情形，而这一点如果不明确标识，使用者可能误用，后果严重。

两种情形的要求差异

方面	运输空轮椅	乘坐使用
主要风险	抛射物	使用者伤害
固定要求	防止移动	承受碰撞载荷
结构要求	一般	碰撞条件下的完整性
约束系统	不涉及	需与车辆约束配合
验证方式	固定强度	碰撞试验
标识	一般说明	明确的适用性标识

「碰撞试验」是乘坐使用轮椅的关键验证，它验证的是在碰撞减速条件下，轮椅结构、固定点、约束系统能否保护使用者。

固定点的要求

用于乘坐的轮椅需要设计专门的固定点：

位置。 便于固定装置连接，且受力合理。

强度。 承受碰撞条件下的载荷，这个载荷远大于正常使用。

标识。 固定点应当有明显标识，便于识别。

通用性。 与常见的固定系统兼容。

数量。 通常需要多个固定点分布在前后。

与结构的连接。 固定点的载荷要能传递到车架主结构，而不是只连在局部件上。

「固定点标识」很实际。 司机或护理人员在固定轮椅时需要快速找到固定点，标识不清可能导致固定在错误位置，而错误位置的强度可能不足。

约束系统的配合

乘坐使用时，使用者需要车辆的约束系统（安全带）保护：

约束带的路径。 安全带应当能正确通过使用者的骨盆和胸部，而不被轮椅部件阻挡或改变路径。

与扶手的关系。 扶手可能使安全带路径偏离。

与靠背的关系。 靠背高度和形状影响肩带的位置。

轮椅自身的约束带。 轮椅上的姿势约束带不能替代车辆安全带，这一点要明确。

头部支撑。 碰撞中的头颈保护。

「轮椅约束带不能替代安全带」是必须明确的。 轮椅上的姿势带是为了维持坐姿，强度和路径都不是为碰撞设计的，使用者或护理者如果误以为已有约束就不系安全带，风险很大。

碰撞相关的考察

结构完整性。 碰撞条件下车架、座椅、固定点是否保持完整。

使用者的位移。 碰撞中使用者的移动范围。

约束的有效性。 约束系统是否有效限制使用者。

部件的脱落。 脚踏、扶手、配件在碰撞中是否脱落成为危险物。

尖锐部分。 碰撞后暴露的尖锐结构。

二次碰撞。 使用者与轮椅部件的碰撞。

「部件脱落」值得注意。 轮椅上的可拆卸部件（脚踏、扶手、餐板、氧气瓶）在碰撞中可能脱落，对使用者和车内其他人都是危险。

不适用于乘坐的轮椅

多数普通轮椅不适用于车内乘坐，相关的处理：

明确标识。 在产品上标注不可在车内作为座椅使用。

说明书说明。 清楚说明正确的使用方式。

建议替代方案。 转移到车辆座椅上。

运输时的固定说明。 空轮椅在车内的正确固定方式。

「产品上的标识」比说明书更有效，因为司机和护理者在实际操作时看得到。

空轮椅运输的考察

即使是运输空轮椅，也有相关的要求：

固定的可行性。 轮椅是否有可供固定的结构。

折叠后的稳定。 折叠状态下是否会自行展开。

重量与搬运。 搬上搬下的负担。

尺寸。 能否放入车辆空间。

部件的固定。 可拆卸部件是否会散落。

「折叠后自行展开」是实际问题，如果折叠锁定不可靠，运输中震动可能使轮椅展开，占用空间或造成损伤。

资料中应当说明的

是否可在车内乘坐使用。 明确的是或否。

固定点的位置。 如果可乘坐使用，固定点在哪里。

兼容的固定系统。 与哪些系统配合。

约束系统的使用。 安全带的正确路径。

空轮椅的运输固定方式。

可拆卸部件的处理。 运输前是否需要拆下。

使用中的实际问题

固定装置的操作。 在车内狭窄空间操作固定装置的便利性。

固定时间。 完成固定所需的时间，影响使用体验。

固定的确认。 司机或护理者能否确认固定到位。

下车的顺序。 解除固定和约束的正确顺序。

紧急情况。 紧急撤离时能否快速解除。

「紧急撤离的快速解除」是安全考虑。 车辆发生事故或起火时，需要快速把使用者转移出车，固定和约束的解除方式应当便于快速操作。

与产品设计的关系

如果产品设计为可在车内乘坐使用，设计阶段就要考虑：固定点的布局与强度；结构在碰撞载荷下的完整性；部件的固定防脱；以及与常见约束系统的兼容。

这些要求在产品定型后很难补加，因为涉及结构和强度，所以应当在设计之初就明确产品的定位。

我们的做法

做轮椅检测时，「是否可在车内乘坐使用」的标识是我们会核对的内容 ——因为误用的后果严重，而标识是主要的防止手段。

对于设计为可乘坐使用的产品，固定点的强度验证是必做项目；对于不适用的产品，我们会确认产品上有明确的禁止标识。

空轮椅的运输相关项目（折叠锁定、部件固定）我们也会关注，因为这些是日常使用中每天都会遇到的情形。

如果你有轮椅产品涉及车辆运输或乘坐使用，想先理清相关要求，可以把产品资料和使用场景发过来一起讨论，或者直接联系：132 4819 8029。检测能力见服务介绍，产品分类见手动轮椅检测与电动轮椅检测，标准信息见标准查询。

English version

Conclusion. A wheelchair entering a vehicle presents two entirely different situations. In the first, the empty chair is transported: the user transfers to a vehicle seat and the chair travels in the vehicle, folded or otherwise. Here the chair is cargo, and the requirement is secure stowage so that it does not become a projectile under heavy braking or in a collision. In the second, the user rides seated in the chair, which then serves as a vehicle seat and must perform a seat's safety function, involving crash safety at a far higher level of requirement. Most ordinary wheelchairs are unsuitable for the second situation, and where that is not clearly marked, users may misuse them with serious consequences.

Differences between the situations. Transporting an empty chair concerns the projectile risk, requires securement against movement, places general demands on structure, does not involve restraint systems, is verified through securement strength and needs general instructions. Occupied use concerns injury to the user, requires securement capable of carrying crash loads, demands structural integrity under crash conditions, requires compatibility with vehicle restraints, is verified by crash testing and needs explicit suitability marking. Crash testing is the key verification for occupied use, establishing whether structure, securement points and restraint protect the user under crash deceleration.

Securement point requirements. Chairs intended for occupied use need purpose-designed securement points. Position must suit connection of securement devices and carry load sensibly. Strength must withstand crash loads, far above normal use. Marking should make the points conspicuous and identifiable. Compatibility should suit common securement systems. Number is generally several, distributed front and rear. And the connection to structure must transmit load into the main frame rather than into a local component alone. Marking is practical: a driver or carer securing a chair needs to find the points quickly, and unclear marking can lead to securing at the wrong location, where strength may be inadequate.

Working with restraint systems. For occupied use, the user needs protection from the vehicle's restraint system. The belt path must allow the belt to pass correctly across the pelvis and chest without being obstructed or diverted by chair components. Armrests may divert the belt path. Backrest height and shape affect shoulder belt position. The chair's own positioning straps cannot substitute for vehicle belts, which must be stated explicitly. And head support matters for head and neck protection in a collision. The point about positioning straps must be explicit: straps on a wheelchair exist to maintain posture and are designed neither in strength nor in path for crash loading, and a user or carer assuming restraint is already provided and omitting the seat belt faces serious risk.

Crash-related examination. Structural integrity covers whether frame, seat and securement points remain intact under crash conditions. User excursion covers how far the user moves during the crash. Restraint effectiveness covers whether the system limits the user effectively. Component detachment covers whether footplates, armrests and accessories come loose and become hazards. Sharp features cover structures exposed after the crash. And secondary impact covers the user striking chair components. Component detachment deserves attention: removable parts including footplates, armrests, trays and oxygen cylinders may detach in a collision and endanger both the user and other occupants.

Chairs unsuitable for occupied use. Most ordinary chairs are unsuitable, and the handling follows. Mark the product explicitly as not for use as a seat in a vehicle. Explain correct use in the instructions. Recommend the alternative of transferring to a vehicle seat. And explain correct securement of the empty chair during transport. Marking on the product is more effective than the instructions, because drivers and carers see it at the moment of use.

Examining empty chair transport. Even transporting an empty chair carries requirements. Securement feasibility covers whether the chair has structure to secure. Folded stability covers whether it unfolds by itself. Weight and handling cover the burden of lifting in and out. Size covers whether it fits the vehicle space. And component retention covers whether removable parts scatter. Self-unfolding is a real problem: where the folding lock is unreliable, vibration during transport can open the chair, occupying space or causing damage.

What the documentation should state. Whether the chair may be occupied in a vehicle, stated as a plain yes or no. Where the securement points are, if occupied use is permitted. Which securement systems are compatible. How the restraint system should be used, including correct belt paths. How to secure the empty chair for transport. And how to handle removable components, including whether they must be removed before transport.

How we handle it. In wheelchair testing we check the marking on occupied use in vehicles, since misuse has serious consequences and marking is the principal preventive measure. For products designed for occupied use, securement point strength verification is a standing item; for products that are not, we confirm that the prohibition is clearly marked on the product. We also attend to transport-related items on empty chairs, covering folding locks and component retention, since those arise every day in ordinary use.

Send us the product documentation and use scenario and we will work through the requirements. Phone or WeChat: +86 132 4819 8029.