JPH0227085Y2 - - Google Patents

Description

[Detailed description of the invention] (A) Technical field This invention relates to a pillar protection cover that is fitted onto the pillars of a house under construction to prevent the pillars from becoming dirty or damaged.

(b) Prior art and its problems When building a wooden house, the parts that are installed at the initial stage, such as stairs, pillars, window and door frames, are
Care must be taken to prevent soiling or damage during subsequent construction work.

Particular care must be taken with wooden stairs and pillars, as they will not be painted or covered after construction work.

Conventionally, these wooden members were protected by pasting or wrapping them with strong wrapping paper or the like. However, this is a tedious task. It was inefficient.

Recently, plastic pillar covers have been introduced. FIG. 10 is a cross-sectional perspective view of a known pillar protection cover attached to a pillar.

This is made by extruding vinyl chloride resin. Cover body 20 curved outward convexly
On both sides thereof, there are presser portions 21, 21 each bent inward at an angle of about 90 degrees.

In the free state, the distance between the holding parts 21, 21 on both sides is narrower than the length of one side of the pillar P. Then presser foot 2
1 and 21 are expanded to opposite sides and the pillar protection cover is fitted onto one side of the pillar P, the holding part 21 comes to sandwich the side surface of the pillar P due to the elastic force of the main body.

While FIG. 10 shows a structure in which only one side of the column is protected, FIG. 11 shows a structure in which two adjacent sides of the column are protected simultaneously. The cover body has two sides forming an angle of approximately 90 degrees, and has presser portions 21 at both ends. Although it is made of vinyl chloride (hard), it is still manufactured using an extrusion molding method.

These pillar protection covers had the disadvantage that they could only be used for pillars of a certain size. This is because the relationship between the cover body and the presser portions on both sides is fixed.

The side of the pillar is not uniform, for example, 3 to 5 inches.
There is a square pillar.

The pillar protection cover shown in FIG. 10 cannot accommodate pillars of various sizes. Each time the dimensions of the pillars change, it is necessary to prepare many types of protective covers with different dimensions.

At a construction site, unless all the dimensions of the pillars are known in advance, it is impossible to determine which dimensions and how many protective covers are required.

There were such shortcomings.

(c) Purpose of the present invention The purpose of the present invention is to provide a pillar protection cover that allows one type of protection cover to be applied to pillars of different sizes.

(d) Structure of the present invention The column protection cover of the present invention consists of (1) a cover body that is elastically deformable and curved in an arc shape so as to convex outward in a free state, and (2) formed at both ends of the cover body. (3) a side plate portion formed continuously with the adjustment piece receiving recess, and (4) a side plate portion that is rotatable relative to the main body. (5) In the closed state where the adjustment piece fits into the adjustment piece receiving recess, the inner abutment surface of the adjustment piece abuts the side surface of the column, ( 6) The outer contact surface of the adjustment piece is in contact with the side surface of the column when the adjustment piece is expanded so as to touch the tip of the side plate.

(e) Embodiment (part) Fig. 1 is an enlarged cross-sectional view showing an embodiment of the protective cover of the present invention. Since the whole is manufactured continuously by plastic extrusion, the longitudinal cross-sectional shape is the same. Therefore, illustrations such as a front view and a side view are omitted.

This is a cross-sectional view in the free state.

Since it is made of plastic, it will bend in that direction if force is applied to it.

The pillar curing cover 1 mainly has a wide arc-shaped cover body 2 at the center. Side plate portions 3 are provided on both sides of the cover body 2, forming a constant obtuse angle φ with respect to the tangent to the cover body 2. The side plate part 3 is the cover main body 2
It is continuous with the central part AMB of , via the adjustment piece receiving recess 4 .

In this example, the obtuse angle φ between the side plate portions 3 (CE, DF) and the tangent to the central portion AMB of the cover body 2 is 120°.

In the free state, the central part AMB of the cover body 2
is an outwardly convex arc with a radius of 55 mm and a central angle of 120° with respect to the center 0. In this example, the wall thickness is 0.9mm
It is. The material is hard vinyl chloride.

In this example, the adjustment piece receiving recess 4 has an inner diameter of 3 mm and a large arc (center angle of 180° or more).

The side plate portion 3 has widths CE and DF of 17.5 mm.

Slightly rearward from the middle part of the side plate part 3, there is an adjustment piece 5.
is provided via the soft connecting portion 6. In this example,
The adjustment piece 5 is made of hard vinyl chloride, and the soft connecting portion 6 is made of soft vinyl chloride.

The cover main body 2, the adjustment piece 5, and the soft connecting portion 6 are extruded from the beginning as one piece using a coextrusion die.

In order to obtain a difference in hardness and softness, polyethylene (high density, low density) can be used instead of vinyl chloride.

FIG. 2 is an enlarged sectional view of only the vicinity of the adjustment piece.

The adjustment piece 5 includes a flat mounting surface portion 7 that continues to the soft connecting portion 6, a first curved surface portion 8 that curves inward following this, an inner abutment surface 9 that continues from this, a second curved surface portion 10,
It consists of an outer contact surface 11.

Due to the mounting surface portion 7, the first curved surface portion 8, and the inner abutment surface 9, the adjustment piece 5 has a substantially dogleg-shaped cross section.
The adjustment piece 5 can be rotated back and forth about the soft connecting portion 6 as a fulcrum.

The second curved surface portion 10 can be lightly fitted into the inner surface of the adjustment piece receiving recess 4 of the cover body 2. This is the state in which the adjustment piece 5 is closed.

Conversely, when the adjustment piece 5 is expanded, the rear surface of the mounting surface section 7 can be opened until it comes into contact with the inward abutment ridge 12 of the side plate section 3.

In this example, the rotation range of the adjustment piece 5 is about 135 degrees.

In the one shown in FIG. 2, a groove 13 is provided on the back surface of the mounting surface 7 to facilitate rotation of the adjustment piece 5. However, as shown in FIG. 1, 13 may be omitted.

The adjustment piece 5 is thus positioned relative to the cover body 2.
It can also be closed (fitted into the adjustment piece receiving recess 4).
It can also be expanded (hitting the contact protrusion 12). 2
Since there are two adjustment pieces, there can be three different states: ``both closed'', ``only one expanded'', and ``both expanded''.

Further, the central portion AMB of the cover body 2 is curved so as to be convex toward the front. If the radius is R and the central angle is θ in the free state, the length of the AMB is given by L ₁ =πRθ/180 (1). However, θ is expressed as an angle.

When AMB is stretched and stretched, it has a maximum length of L ₁ .

However, the length L ₂ of side AB in the free state is L ₂ =2Rsinθ/2 (2).

Therefore, the apparent length L=AB of the central portion of the cover body 2 can be between _L2 and _L1 .

The adjustment piece receiving recess 4 is connected to the second curved part 1 of the adjustment piece 5.
It has the effect of accepting the head of 0 and stabilizing the closed state.

In addition, the adjustment piece receiving recess 4 effectively lengthens the length of the cover body in the width direction (CAMBD) and widens the range of elastic deflection of the cover body.

The protrusions 14 and 15 stabilize the open state of the adjustment piece 5.

(F) Embodiment (Part 2) FIG. 3 is an enlarged sectional view of the vicinity of the adjustment piece of the pillar protection cover of another embodiment.

In the previous example, the main body and the adjusting piece were rotatably attached using the soft connecting part 6.

In this example, instead of this, an inward winding part 14 is formed at the tip of the side plate part 3, and a winding part 15 and a retaining large diameter part 1 are formed at the end of the mounting surface part 7 of the adjustment piece 5.
6 is formed.

Winding part 1 rolled in a spiral shape in the same direction
4 and 15 are fitted together to make the adjustment piece 5 rotatable relative to the main body 2.

(g) Effect The dimensions of the columns are 3 sun, 3.5 sun, 4 sun, 4.5 sun, and 5 sun square.

FIG. 4 shows a cross-sectional view of a 3-inch square column with the protective cover of the present invention attached. Both adjustment pieces 5, 5 fit into the adjustment piece receiving recess 4. It is in a closed state. Inner contact surface 9 of adjustment pieces 5, 5,
9 is in contact with the side of the pillar and presses it down elastically.

Figure 5 is a cross-sectional view of a 3.5 inch square column fitted with a column protection cover. One adjustment piece 5 is closed, while the other adjustment piece 5 is expanded. The outer contact surface 11 of the expanded adjustment piece 5 is in contact with the surface of the column.

FIG. 6 is a cross-sectional view of a 4 inch square column with a column protection cover attached. One adjustment piece is closed,
the other is open. The center portion of the cover body 2 is fully extended.

Figure 7 is a cross-sectional view of a 4.5 inch square column with a column protection cover attached. both adjustment pieces 5,
5 is expanding. The center portion of the cover body 2 is curved.

FIG. 8 is a cross-sectional view of a 5 inch square column with a column protection cover attached. Both adjustment pieces 5, 5 are spread out. The center portion of the cover body 2 is elongated and tight.

In this way, the pillar protection cover of the present invention can be applied to pillars of many different sizes.

FIG. 9 is a perspective view of the same cross-section shown in FIG. 4. The illustration shows one side of the pillar covered vertically.

(h) Effects The pillar protection cover of the present invention can (1) protect pillars during construction and prevent them from getting dirty;

(2) One type of pillar protection cover can be commonly applied to pillars of all sizes. This is extremely convenient since there is no need to prepare many types of covers.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional plan view of a pillar protection cover according to an embodiment of the present invention. The pillar protection cover is continuous with the same cross section in the longitudinal direction. FIG. 2 is an enlarged sectional view of the vicinity of the adjustment piece. FIG. 3 is an enlarged sectional view of only the vicinity of the adjustment piece of the pillar protection cover according to another embodiment. FIG. 4 is a cross-sectional view of the pillar protection cover attached to a 3-inch square pillar.
Figure 5 is a cross-sectional view of the pillar protection cover attached to a 3.5 inch square pillar. FIG. 6 is a cross-sectional view of the pillar protection cover attached to a 4 inch square pillar. Figure 7 is a cross-sectional view of the pillar protection cover attached to a 4.5 inch square pillar. FIG. 8 is a cross-sectional view of the pillar protection cover attached to a 5-inch square pillar. FIG. 9 is a perspective view of the cross-sectional view shown in FIG. 4. FIG. 10 is a cross-sectional perspective view of a known pillar protection cover attached to a pillar. FIG. 11 is a cross-sectional perspective view of a known two-sided type pillar protection cover attached to a pillar. 1... Pillar curing cover, 2... Cover body, 3...
...Side plate part, 4...Adjustment piece receiving recess, 5...Adjustment piece, 6...Soft connection part, 7...Mounting surface part, 8...
First curved surface portion, 9...Inner abutment surface, 10...Second curved surface portion, 11...Outer abutment surface, 12...Attaching protrusion.

Claims (1)

[Scope of utility model registration request] A cover body 2 that can be elastically deformed and curved in an arc shape so as to convex outward in a free state, and a cover body 2
arcuate adjustment piece receiving recesses 4, 4 that are convex to the outside and are formed at both ends of the adjustment piece receiving recesses 4, 4;
side plate parts 3, 3 formed on the inner side of the arcuate curve of the cover main body 2, and a second curved surface part 10 attached to the inner side of the side plate part 3 so as to be rotatable with respect to the cover main body 2; It consists of a substantially dogleg-shaped adjustment piece 5 having a first curved surface part 8 in the middle, and the second curved surface part 10 of the adjustment piece 5 can be fitted into the adjustment piece receiving recess 4. In the closed state where the second curved surface portion 10 fits into the adjustment piece receiving recess 4, the inner abutment surface 9 on one side of the second curved surface portion 10 of the adjustment piece 5 abuts against the side surface of the pillar P, and the adjustment piece 5 contacts the side plate. The second curved surface portion 1 of the adjustment piece 5 in the expanded state so as to hit the tip of the portion 3
A pillar curing cover characterized in that an outer abutment surface 11 on the other side of the pillar P is configured to abut against a side surface of the pillar P.