Extension guide

15:

• An extension guide for mounting a movable furniture part linearly movably along an extension direction, the extension guide comprising:
• a carcass rail configured to be attached to a furniture carcass;
• a drawer rail configured to be attached to the movable furniture part;
• a linearly movable center rail arranged between the carcass rail and the drawer rail;
• and
• a first guide configured to guide the center rail and to support the center rail transversely to the extension direction, the first guide being connected directly or indirectly to the carcass rail such that the first guide is stationary in the extension direction relative to the carcass rail.

17:

• The extension guide of claim 15, wherein:
• the carcass rail includes a fastening section configured to be fastened to the furniture carcass, a bottom adjoining the fastening section at an angle, and a side section adjoining the bottom at a further angle;
• and
• the first guide is arranged on an outer side of the side section which outer side faces away from the fastening section.

18:

• The extension guide of claim 17, wherein:
• the bottom adjoins the fastening section at a right angle;
• and
• the side section adjoins the bottom at a right angle.

19:

• The extension guide of claim 15, wherein:
• the carcass rail has a longitudinal extent in the extension direction;
• and
• the first guide is one of a plurality of first guides, and a distance between two of the first guides which are furthest apart in the extension direction is at least one half of the longitudinal extent of the carcass rail.

20:

• The extension guide of claim 15, wherein:
• the carcass rail has a longitudinal extent in the extension direction;
• and
• the first guide is one of a plurality of first guides, and a distance between two of the first guides which are furthest apart in the extension direction is at least two thirds of the longitudinal extent of the carcass rail.

21:

• The extension guide of claim 15, wherein:
• the carcass rail has a longitudinal extent in the extension direction;
• and
• the first guide is one of a plurality of first guides, and a distance between two of the first guides which are furthest apart in the extension direction is at least three quarters of the longitudinal extent of the carcass rail.

24:

• The extension guide of claim 15, wherein:
• the carcass rail includes a fastening section configured to be fastened to the furniture carcass;
• the center rail includes a top wall and first and second opposite side walls angled from the top wall, wherein an outer side of the first side wall and an inner side of the second side wall face towards the fastening section of the carcass rail;
• the inner side of the second side wall is in contact with the first guide during linear movement of the movable furniture part.

28:

• The extension guide of claim 15, further comprising:
• an attaching element detachably attached to the carcass rail by a latching connection;
• wherein the first guide is arranged on the attaching element;
• wherein the latching connection includes a hook-shaped receiving element defined on the carcass rail and a receptacle defined on the attaching element, the hook-shaped receiving element being at least partially received in the receptacle;
• and
• wherein the attaching element includes a latching projection at least partially received in a positioning receptacle of the carcass rail.

31:

• The extension guide of claim 29, wherein:
• the center rail includes a first side wall;
• the carcass rail includes a side section;
• and
• an inner side of the first side wall of the center rail and an inner side of the side section of the carcass rail are in contact with the first lateral guide of the inner carriage.

32:

• The extension guide of claim 29, wherein:
• the first lateral guide includes a guide roller mounted rotatably about a vertical axis of rotation
• the center rail includes a first side wall;
• the carcass rail includes a side section;
• and
• an inner side of the first side wall of the center rail and an inner side of the side section of the carcass rail are in contact with the guide roller.

33:

• The extension guide of claim 15, further comprising:
• a synchronizer configured to synchronize relative movement of the center rail and the drawer rail relative to the carcass rail, the synchronizer including:
• a first running surface connected to the carcass rail directly or indirectly such that the first running surface is fixed relative to the carcass rail;
• a second running surface;
• at least one synchronizing wheel rolling on at least one of the running surfaces.