Design story

Boby: the little trolley that brings the workspace with it

Boby puts several kinds of storage within arm’s reach: open shelves, upright compartments and pivoting trays. Joe Colombo’s compact trolley turns the tools around a desk into a small workspace that can move.

In 30 seconds

The essential idea

MoMA records Colombo’s Boby 3 Portable Storage System as a 1969 ABS-plastic design made by Bieffeplast. B—Line’s continuing model carries the year 1970. The family combines different storage openings with castors, making the organisation of a task portable.

At a glance

Subject
Joe Colombo Boby trolley
Entry
Design story
Last reviewed
6 September 2026

Three things to remember

  1. Open compartments and moving trays provide different kinds of access.
  2. The castors move an organised set of things together.
  3. The MoMA record and current B—Line model have distinct dates and production contexts.
A red Boby storage trolley with three shallow trays swung open beside its deeper open compartments and small castors.
Boby at MoMA, with the trays swung out. The open compartments show why the trolley can be reached from several sides. sailko, CC BY 2.5. JPEG re-encoded; metadata removed. Source: Joe colombo, boby 3, portable storage system, 1969, moma 01.

The workspace comes along

A desk can be clear while everything needed for the next task remains close by. Boby occupies that useful middle ground. The trolley collects small tools and materials beside a work surface, then rolls the whole arrangement elsewhere.

MoMA records Joe Colombo’s Boby 3 Portable Storage System as a 1969 design in ABS plastic, made by Bieffeplast. Its interpretation connects the trolley to Colombo’s interest in adaptable domestic equipment and movable elements.1

That larger ambition becomes very approachable in this small object. Instead of rebuilding a room around each activity, part of the room can travel with the activity.

A trolley diagram combines a bank of shallow trays, taller open side compartments and visible castors.
Trays and open compartments offer several ways into one portable workspace. The arrangement combines ideas rather than specifying a Boby configuration. Original PatinaHall schematic, not to scale.

The drawer that turns a corner

Boby’s most engaging movement happens above its wheels. Shallow trays swing out around a pivot, opening like a fan. B—Line’s catalogue shows this arrangement alongside open compartments and shelves.3

A conventional drawer travels in a straight line. A pivoting tray sweeps sideways, presenting its contents next to the body of the cabinet. That makes the direction of access part of the trolley’s character: front, side and top can each offer a different way in.

The distinction is visible even when the trolley is empty. An open shelf welcomes something you want to reach directly; an upright compartment gathers taller things; a shallow tray spreads smaller ones out. The storage is already making suggestions about how to work.

A rounded tray is drawn closed and rotated around a marked pivot, showing its sideways sweep outside the trolley body.
A tray swings sideways around a pivot. The opening angle and geometry are illustrative. Original PatinaHall schematic, not to scale.

Small furniture, industrial thinking

Colombo’s interest in plastics was grounded in manufacturing experience. MoMA’s account connects his experiments to taking over his family’s electrical-conductor business in 1958. ABS and modular construction offered ways to give domestic objects several linked functions.1

B—Line describes the continuing Boby through injection-moulded ABS drawers and compartments, with polypropylene castors. It offers a range of configurations under the same name.2

Rounded edges and repeated sections give the trolley a coherent body despite its many openings. It can hold a varied collection without looking like several unrelated boxes strapped to a set of wheels. That visual unity is part of the design work too.

A working companion with a long life

The museum’s 1969 Boby 3 and B—Line’s model dated 1970 document different points in the design’s history. The current maker’s catalogue illustrates several heights and arrangements, showing how the working idea continues through variations.13

For someone encountering a vintage or recent Boby, the most useful historical clue is its organisation. Follow the route of a hand: into an open bay, over the top, around a swinging tray. Then imagine moving all those stored things together.

The trolley turns storage into a companion to an activity. Its pleasure lies in the moment when several useful things arrive together, already arranged, and the work can begin.

Research notesEvidence, connections and limits

The museum’s Boby 3 record and B—Line’s continuing model are separate evidence contexts. Their 1969 and 1970 dates are retained as stated. Historical dimensions, makers and tray configurations are not transferred to every trolley offered for sale.

Evidence map

Connected subjects and evidence

Reviewed connections

  • Joe Colombo Boby trolleydesigned byJoe Colombodocumented

    MoMA dates its Boby 3 design to 1969 and credits Bieffeplast; B—Line labels its continuing Boby model 1970. Preserve both source contexts without pretending they are the same event.

    Reviewed 6 September 2026 by PatinaHall editorial.
  • Joe Colombo Boby trolleymanufactured byBieffeplastdocumented

    MoMA dates its Boby 3 design to 1969 and credits Bieffeplast; B—Line labels its continuing Boby model 1970. Preserve both source contexts without pretending they are the same event.

    Reviewed 6 September 2026 by PatinaHall editorial.
  • Joe Colombo Boby trolleymanufactured byB—Linedocumented

    MoMA dates its Boby 3 design to 1969 and credits Bieffeplast; B—Line labels its continuing Boby model 1970. Preserve both source contexts without pretending they are the same event.

    Reviewed 6 September 2026 by PatinaHall editorial.

Research trail

Sources and further reading

  1. Joe Colombo, Boby 3 Portable Storage System, 1969, object 153.1977The Museum of Modern ArtAccessed 6 September 2026
  2. Boby: Joe Colombo, 1970B—LineAccessed 6 September 2026
  3. Boby catalogue, 2022/23B—LineAccessed 6 September 2026
  4. Joe colombo, boby 3, portable storage system, 1969, moma 01.JPGWikimedia CommonsAccessed 6 September 2026

Last reviewed 6 September 2026. Found an error or a stronger primary source? Contact PatinaHall.