FI96528C - Bjälksko - Google Patents

Description

96ΓΟ ;; BEAM SHOE

The invention relates to a beam shoe comprising a bracket for attaching a beam to a log wall in a direction perpendicular to 5 by placing the end of the beam on the support and fixing surfaces for attaching the beam shoe to the log.

The floor beams of a log building are attached to the lowest wall logs at their ends. In particular, when there are no load-bearing structures under the floor beams, the entire weight of the floor is applied to the ends of the beams. Even when there is a concrete slab under the floor beams, the beams are attached to the walls to achieve the correct height and then they are supported with wedges on the concrete slab.

15 Traditionally, floor beams have been attached to a round log wall by nailing with the aid of support beams. The support bar is attached to the side of the log so that the floor beam can be lowered onto it. Notches are made in the ends of the floor joists according to how high the top surface of the floor is to be placed.

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One disadvantage of the current fastening method is the high labor and time required to achieve the required installation accuracy. The ends of the floor joists have to be notched mainly by hand, as the support strip settles in a different position depending on whether the lowest log 25 of the wall is complete or half. The size of the log radius and the shape of the log also affect the position of the support bar.

Another notable drawback occurs when the ends of a floor beam are attached to a wall with the lowest log half and only 30 supported at its ends. In practice, the case comes up very often. In this case, the floor beam must also be attached to another wall log, as half a log usually cannot stand alone without bending the weight of the entire floor. Today, attachment to the upper log is most often done by nailing. However, hitting a large nail 35 near the top of the floor beam may split the end of the beam and further weaken the attachment.

Existing beam shoes are only suitable for fixing floor beams to vertical walls, they cannot be applied to round logs.

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The beam shoe according to the invention eliminates the above drawbacks. The invention is characterized by what is stated in the characterizing part of the claim.

The most important advantages of the invention are that the installation of floor beams is accelerated while the quality of the fastening is improved. The fastening is always done in the same way and the quality of the fastening is always equally good regardless of the diameter of the log, the height of the floor beam or whether the lowest log 10 in the wall is complete or half.

The invention will now be described in detail with reference to the accompanying drawing, in which Figure 1 shows a single beam shoe, Figure 2 shows a beam shoe attached to the center of a log, Figure 3 shows a beam shoe attached to a seam between two logs.

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According to Figure 1, the beam shoe comprises a frame 1 wider than the lower end and a beam support 2 to be mounted inside the frame. The beam support attaches to a hole 3 in the body by means of a protruding tongue therein.

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Figures 2 and 3 show typical mounting methods for a beam shoe. ··. The body has different mounting surfaces 4a and 4b for mounting it in the middle of the log or between two logs. Contrary to the model in the figure, the mounting surfaces can also be located on the sides of the beam shoe 30. The mounting surfaces 4a, 4b are shaped so that the same beam shoe fits most known industrially manufactured round log models.

The beam shoe frame 1 has a plurality of holes for attaching it to 35 logs and the ends of floor beams with nails or screws. The beam bracket 2 supports the end of the floor beam from below and facilitates installation, as the end of the beam can be lowered onto it before mounting. Thanks to the articulated mounting method 3

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The 9652 ^ 3 beam bracket 2 fits directly according to the end of the floor beam, even if the beam shoe has to be installed at a slight angle.

Beam supports 2 5 of different heights can be connected to the frame part, depending on how high the floor beams are and at what height the floor is to be placed. The beam holder 2 is easy to push into place along the groove in the body part.

The invention is not limited to the embodiment shown in the description and in the drawings 10, but can be modified within the scope of the appended claims. For example, a beam shoe is as such suitable for attaching girder beams to a log building's ceiling. 1

Claims (2)

A beam shoe comprising a support (2) for attaching the beam to the timber wall in a transverse direction by placing the end of the beam on the support and the fastening surfaces (4a, 4b) for the beam's fastening in the logs, characterized in that the fastening surfaces comprise interior, with spacing from one another mounted first oblique mounting surfaces (4a) for attaching beam shoe with these surfaces to the curved upper and lower surfaces of this stock, and 10 second mounting surfaces (4b) with opposite oblique surfaces which are placed immediately outside the first mounting surfaces for attaching beam cones with these surfaces to two adjacent logs, the curved upper surface of the lower log and the curved lower surface of the upper log. 15 Beam shoe according to claim 1, characterized in that the support (2) is connected to the frame of the beam by means of a hinge (3) in such a way that the beam located on the support (2) can be mounted obliquely from the vertical level. 20 M ·