JPH07247734A - Reinforcing method of aluminum tent frame, and reinforced frame thereof - Google Patents

Abstract

PURPOSE:To enhance the strength of an aluminum tent frame. CONSTITUTION:A frame member 10 is formed in the shape of a pipe having a circular section. Steel members 11, 12 and 13 are also formed in the shape of a pipe having a circular section, and their outside diameters are different in two or three stages. The outside diameter of a narrow diameter section of each of the steel members 11, 12 and 13 is formed slightly larger than an inside diameter of the frame member 10, and the narrow diameter section is forcedly fitted to the inside of the end of the frame member 10 by means of a hydraulic press. A wide diameter section of the steel member 13 has an inside diameter approximately the same as the outside diameter of the steel member 12 or larger than that so that the wide diameter section of the steel member 12 can be fitted therein. An insertion hole 15 provided to the steel member 11 is made for pivoting the frame member 10 on a leg, etc., with a pin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to various assemble and disassembleable tent frames used for various entertainments, exhibitions, simulated stores, etc. The present invention relates to a method for improving the strength of such a tent frame and a reinforced frame of an aluminum tent frame whose strength is improved by the method.

[0002]

2. Description of the Related Art In conventional assembly and disassembly assemble tents, there has been an assembly tent composed only of an aluminum frame. However, the strength of aluminum tent frames is weaker than that of iron tent frames, so when constructing tent frames of the same size, the frame diameter and wall thickness of the frame members are larger than those of iron tent frames. I had to do it.

[0003]

Therefore, the present invention is
In a tent frame composed of an aluminum frame member, a method of further reducing the pipe diameter and wall thickness of the frame member of the conventional aluminum tent frame by improving the strength of the tent frame, and the conventional aluminum tent frame. It is an object of the present invention to provide a method for making it possible to construct a larger tent frame by using a frame member having the same pipe diameter and wall thickness as that of the above-mentioned frame member, and to provide a tent frame having improved strength by the method. I am trying.

[0004]

In order to solve the above-mentioned problems, the first object of the present invention is to assemble and disassemble an aluminum tent frame composed of an aluminum tubular frame member. The strength of the aluminum tent frame was improved by connecting a reinforcing member having a strength higher than that of aluminum to the end portions, connecting the reinforcing members to each other, or connecting the reinforcing members to each other as a movable part. A second aspect of the present invention is, in the above method, in the connecting portion between the frame member and the reinforcing member, the outer diameter of the reinforcing member is formed to be slightly larger than the inner diameter of the frame member to form the reinforcing member in the end portion of the frame member. The frame member was forcibly fitted, or the outer diameter of the frame member was made slightly larger than the inner diameter of the reinforcing member, and the frame member was forcibly fitted into the end portion of the reinforcing member.

A third aspect of the present invention is an assembling / disassembling aluminum tent frame composed of an aluminum tubular frame member, wherein one or both ends of the frame member is a reinforcing member having strength higher than that of aluminum. It is a reinforced frame that is combined with. According to a fourth aspect of the present invention, in the third reinforcing frame, in the connecting portion between the frame member and the reinforcing member, the outer diameter of the reinforcing member is formed to be slightly larger than the inner diameter of the frame member to form the reinforcing member of the frame member. The frame member is forcibly fitted into the end portion, or the frame member is forcibly fitted into the end portion of the reinforcing member by forming the outer diameter of the frame member slightly larger than the inner diameter of the reinforcing member.

[0006]

In the present invention, since the reinforcing member is connected to one or both ends of the tubular aluminum tent frame and the reinforcing member portions are connected or connected to each other, the load is applied to the tent frame. The strength of the connecting portions between the frames or the portions movably connected to each other is improved. Furthermore, in the connecting portion of the frame member and the reinforcing member, by forming the outer diameter of the reinforcing member slightly larger than the inner diameter of the frame member, by forcibly fitting the reinforcing member into the end of the frame member,
Or, conversely, by forming the outer diameter of the frame member slightly larger than the inner diameter of the strengthening member and forcibly fitting the frame member into the end of the strengthening member, the connection between the two becomes extremely firm and there is no fastening. There is no need to use tools, fixing means or adhesives.

[0007]

Embodiments Embodiments will be described below with reference to the accompanying drawings. FIG. 1 is an explanatory diagram of a strengthening method of the present invention,
(A) shows the state before connecting the iron member which is the reinforcing member, (B) shows the state in which the reinforcing member is connected, and (C) connects the frame members to which the reinforcing member is connected. It shows the state. Reference numeral 10 denotes a frame member of an aluminum tent frame, and the frame member 10 is formed of a tubular pipe having a circular cross section. The iron members 11 and 12, which are the reinforcing members, are formed of tubular pipes having a circular cross-section with different outer diameters in two steps and the iron member 13 in three different outer diameters. The outer diameters of the small-diameter portions of the iron members 11 and 12 and the outer diameter of the small-diameter portion of the iron member 13 on the left side in the drawing are formed to be slightly larger than the inner diameter of the tent frame 10. And these iron members 11, 12, 13
The small-diameter portion is forcedly fitted to both ends of the frame member 10 by a hydraulic press or the like.

The large diameter portion on the right side of the iron member 13 in the drawing is
The iron member 12 is formed with an inner diameter that is substantially the same as or slightly larger than the outer diameter of the iron member 12 so that a thick portion of the other iron member 12 can be fitted therein. It can be fitted and connected, or can be removed. Although the iron member 11 and the iron member 12 have different lengths, the outer diameters of the small-diameter portion and the large-diameter portion of the both are formed to be the same. Also, after fitting the iron members 12 and 13,
You may make it stop with a pin etc. so that both may not fall out. Here, the outer diameters of the large-diameter portions of the iron members 11 and 12 and the portion of the iron member 13 having an intermediate outer diameter of three different outer diameters are substantially the same as the outer diameter of the frame member 10 made of aluminum. Leave. As a result, the overall outer diameter of the reinforced frame member can be made substantially uniform, and the appearance can be made smart. The iron member 11 is
The insertion hole 15 is provided in the direction orthogonal to the axial direction.
The insertion hole 15 is provided so as to be axially attached to a leg or the like which is a component of another tent frame by a pin or the like.

FIG. 2 is a partial explanatory view seen from the gable direction of the tent in a state in which the tent frame is assembled using the frame member shown in FIG. Frame member 2 that constitutes the leg
An iron member 21 as a reinforcing member is attached to the upper end of 0, and the iron member 21 has a substantially U-shaped cross section. The frame member 20 can be forcibly fitted from the open portion of the iron member 21 having a U-shaped cross section. Further, the joint end of the iron member 21 with the frame member 20 is formed in a tubular shape, and the tubular joint end is forcibly fitted into the end of the frame member 20 as in the fitting method described with reference to FIG. May be. Alternatively, conversely, the end of the frame member 20 may be forcedly fitted into the tubular joint end.

The iron member 11 of the skeleton member 10 shown in FIG. 1 is horizontally attached by a pin P in two side surfaces of the iron member 21 having a U-shaped cross section. This horizontally connected frame member 10 is further fitted and connected to another frame member 10 by the iron members 13 and 12 at the ends. This connection method is also the same as in the case of FIG. The iron member 13 used here is the same as that shown in FIG. 1, and the outer diameter of which changes in three stages. The iron member 12 of the frame member 10 extending obliquely upward is also connected by a pin P to the two side surfaces of the iron member 21 having a U-shaped cross section. This frame member 10 extending obliquely upward
A mountain-shaped joint member 30 made of a pipe is located at the roof top portion of the, and this joint member 30 is also made of iron, and the large-diameter portion of the iron member 11 at the left end in the figure of the frame member 10 extending diagonally upward is joined. It fits within the end of member 30 and is connected by pin P. The inner diameter of the end of the joint member 30 is formed to be substantially the same as or slightly larger than the outer diameter of the iron member 11 to be fitted.

FIG. 3 is a partial explanatory view of the tent frame assembled by using the frame member shown in FIG. 1 as seen from a side direction. A section U in which the upper side is opened horizontally from the iron member 21 connected to the upper end of the frame member 20 which is a leg
A V-shaped iron receiving portion 22 is extended, and the iron receiving portion 22 receives the iron member 11 of the horizontal frame member 10 and is connected by the pin P. This horizontal frame member 10 is fitted and connected to another frame member 10 by the iron members 13 and 12 at their ends. This connecting method is the same as in the case of FIG. Connection member 13 used here
Is the same as that of FIG. 1 and its outer diameter is changed in three steps. Further, also in the joint member 30 at the roof top portion, the iron receiving portion 31 is extended in the horizontal direction, and the iron receiving portion 31 has a U-shaped cross section with an open bottom. The iron member 11 at the end of the horizontal frame member 10 forming the roof top is connected to the iron receiving portion 31 by a pin P. Furthermore, in this horizontal frame member 10,
The other skeleton members 10 are iron members 12, 13 at these ends.
They are fitted and connected to each other. This connection method is also the same as in the case of FIG. The iron member 13 at the end of the horizontal frame member 10 is the same as that shown in FIG. 1 and its outer diameter is changed in three steps.

The embodiment of the present invention has been described above. The characteristic part of the present invention is that an iron member as a reinforcing member is attached to one end or both ends of an aluminum frame member, and the iron members are connected to each other. It is to improve the strength of the aluminum tent frame by connecting or movably connecting it. The load of the assembled tent frame is applied to the connecting part and the movable part of the tent frame forming the tent frame. It is possible to improve the strength of the aluminum tent frame by constructing all the parts to which the load is applied so that they can be supported by the iron member. In the above embodiment, a method of forcibly fitting the end portion of the reinforcing member into the end portion of the frame member is adopted as the method of connecting the frame member and the reinforcing member. The method of forcibly fitting the ends of the frame members to each other is also quite easily possible. In this case, the end portion of the frame member is deformed and fits into the end portion of the reinforcing member due to the strength, and the outer shape of the reinforcing member is not deformed.

The cross-sectional shape of the frame member of the tent frame made of aluminum is not limited to the circular shape as in the above embodiment, but may be a square cross-section. In this case, the cross-sectional shape of the iron member must be matched with this and a square-shaped member must be used. As the reinforcing member, other than the iron member, it is also possible to use a synthetic resin member having the same or higher strength. The connection between the frame member and the reinforcing member is not by force fitting as in the above-mentioned embodiment, but a female screw is threaded on the inner surface of the connecting end portion of the frame member, and a male screw is formed on the outer peripheral surface of the connecting end portion of the reinforcing member. The two may be screwed and screwed together, or may be fixed by another fixing tool such as a screw or fixed by an adhesive. However, the forced fitting of the above embodiment is the optimal joining method. Further, the breath 40 (see FIG. 2) for preventing rattling of the skeleton can be freely provided at the corner portion of the skeleton, and the connecting and fixing member 50 for preventing the tent frame from slipping off can be freely provided. . The breath 40 and the connecting and fixing member 50 also have an effect of reinforcing the tent frame.

[0014]

According to the present invention having the above-mentioned structure, the strength of the aluminum tent frame is improved by the reinforcing member, and the aluminum tent frame having the same size as the conventional one is constructed. The pipe diameter can be made thinner or the wall thickness can be made thinner than the member. Alternatively, it is possible to construct a larger-sized aluminum tent frame by using an aluminum frame member having the same tube diameter and wall thickness as the conventional one. Further, by adopting the forced fitting method in the connection between the frame member and the strengthening member, it is not necessary to use any fastening tool, fixing tool, adhesive agent or the like, and the connection between both members is made firmer. be able to. In addition, the tent frame strengthened by such a forced fitting method has an extremely smart appearance. As described above, the present invention exerts a great effect.

[Brief description of drawings]

FIG. 1 is an explanatory view of a strengthening method which is an embodiment of the present invention, in which (A) shows a state before joining an iron member which is a strengthening member, and (B) shows a state where a strengthening member is joined. And (C) shows a state in which the tent frames to which the reinforcing members are connected are connected to each other.

FIG. 2 is a partial explanatory view seen from the gable direction of a tent frame composed of the frame members of FIG. 1 manufactured by the strengthening method of the present invention.

FIG. 3 is a partial explanatory view of a tent frame composed of the frame members of FIG. 1 manufactured by the strengthening method of the present invention as seen from a side direction.

[Explanation of symbols]

 10, 20 Frame member 11, 12, 13, 21 Iron member 30 Joint member

Claims (4)

[Claims] 1. An assembling / disassembling aluminum tent frame comprising an aluminum tubular frame member, wherein a reinforcing member having a strength higher than that of aluminum is connected to an end of the frame member, and the reinforcing members are connected to each other. Alternatively, a method for strengthening an aluminum tent frame is characterized in that the strength of the aluminum tent frame is improved by connecting the reinforcing members to each other as movable parts. 2. The connecting member between the frame member and the reinforcing member is formed such that the outer diameter of the reinforcing member is slightly larger than the inner diameter of the frame member to forcefully fit the reinforcing member into the end portion of the frame member, or The reinforcement of the aluminum tent frame according to claim 1, wherein the outer diameter of the frame member is formed to be slightly larger than the inner diameter of the reinforcing member, and the frame member is forcibly fitted into the end portion of the reinforcing member. Method. 3. An assembling / disassembling aluminum tent frame composed of an aluminum tubular frame member, wherein a reinforcing member having a strength higher than that of aluminum is connected to one or both ends of the frame member. A strengthened frame of an aluminum tent frame. 4. In the connecting portion between the frame member and the reinforcing member, the outer diameter of the reinforcing member is formed slightly larger than the inner diameter of the frame member, and the reinforcing member is forcibly fitted into the end portion of the frame member, or The reinforcement of the aluminum tent frame according to claim 3, wherein the outer diameter of the frame member is formed to be slightly larger than the inner diameter of the reinforcing member and the frame member is forcibly fitted into the end portion of the reinforcing member. Skeleton.