JPH0120449Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a pole unit that can be disassembled and assembled freely and is used as a prop for a tent, etc., and in particular includes a pole segment that is fitted and connected in multiple stages, and a pole unit that is inserted through this and is inserted between the pole segments at both ends. It relates to a type equipped with an elastic rope that is stretched.

As a conventionally known pole unit as described above, there is one shown in FIG. 1, for example, in which seven pole segments 1a to 1g are fitted and connected to form one pole 1. That is, the fitting connection portion of each stage pole segment is, for example, as shown in FIG.
A joint pipe 2, which fits into the inner periphery of the pole segments 1b and straddles between the two pole segments 1b, is caulked and fixed to one of the pole segments 1b. A rubber rope 3 is inserted into the pole 1, and washers 4 attached to both ends of the rope are secured to the inner peripheral surfaces of the pole segments 1g and 1a at both ends, as shown in FIG. 3a. Above both end pole segments 1a, 1
By stretching a rubber rope 3 between the pole segments 1a to 1g, each of the pole segments 1a to 1g is held in a fitted and connected state.

By the way, regarding the locking structure of the rubber rope 3 to the pole segments 1a, 1g at both ends, the flat washer 4 connected to the rubber rope 3 is elastically deformed and pushed into the pole segments 1a, 1g. Using elastic restoring force, the outer periphery of the pole segments 1a and 1g
Because it locks by biting into the inner peripheral surface of the
The inner circumferential surfaces of the pole segments 1a and 1g are scratched, causing stress corrosion cracking, which causes bending force to act on the pole 1, causing problems such as breakage accidents. In addition, the ends of the pole segments 1a and 1g are swaged into a tapered shape as shown in Figure 3a, so that they also function as stone end members, so that water and dirt can escape from the openings at the ends. Foreign matter such as the
In order to replace this, the flat washer 4 is removed from the pole segments 1a, 1g using some suitable jig and then reinstalled into the pole segments 1a, 1b, making the work of replacing the rope 3 extremely troublesome. There were other inconveniences.

The present invention was developed to solve the above-mentioned conventional disadvantages, and by eliminating the flat washer that locks the elastic rope made of rubber, etc., the inner circumferential surface of the pole is not damaged, and the openings of both end segments are removed. This pole prevents stress corrosion on the inner circumferential surface of the pole due to the intrusion of foreign objects and accidents such as cutting of the elastic rope by blocking it, and also allows work such as assembling and replacing the elastic rope easily without the need for jigs or tools. The purpose is to provide units.

For this purpose, the present invention provides a pole unit as described above with a pair of stone protrusions that fit into the end openings of both end segments to close the openings and are latched to the end faces of the pole units. The member has a blind hole for inserting a rope that passes in the axial direction from the inner end surface,
A rope locking recess that communicates with the blind hole and opens on the circumferential surface of the fitting part is formed, and the elastic rope is passed through the blind hole and prevented from coming off by the rope locking recess. The gist is that it is stretched between stone projecting members.

The present invention will be specifically described below based on embodiments shown in the drawings.

The pole unit 5 according to the embodiment is equipped with seven pole segments made of super-diallumin, similar to the conventional one shown in FIG. The structure of the section and both end segment sections will be explained.

Pole segments 6, 7 as shown in Figure 2b
The joint pipe 8 that fits into the inner periphery of these parts while straddling the
A Teflon coating 9 is applied over the range from the outer circumference of the end of the pole segment 6 to the inner circumference of the end, including the outer circumference of the joint pipe 8 that fits into the pole segment 7. ing. The pole segment 7 is fitted and connected to the joint pipe 8 with a slight gap, and the other pole segments (not shown) are also fitted and connected in the same way, and the pole unit 5 as a whole As shown in Fig. 4, it can be bent into a semicircular shape. An elastic rope 10 made of rubber is inserted into each of these pole segments, and a protrusion member 13 is provided to stretch the rope 10 between the pole segments 11 and 12 at both ends. That is, as shown in FIG. 3b, narrow diameter portions 11b, 12b are formed at the ends of both end pole segments 11, 12 via tapered portions 11a, 12a, and these narrow diameter portions 11b,
12b is opened in the shape of a straight tube, and in order to close this opening, a stepped columnar stone protrusion member 13 is inserted into the narrow diameter portion 11.
b, 12b. The stone protrusion member 13 has a step 13a that is engaged with the opening end surface of the narrow diameter portion 11b and slightly protrudes from the narrow diameter portion 11b with approximately the same diameter, and the protruding end is formed into a tapered shape. It is designed to stick out inside, etc.
Such a stone end member 13 is made of hard synthetic resin.

Here, a blind hole 13b for rope insertion is formed in the axial direction from the inner end surface of the protrusion member 13, and the outer peripheral surface of the fitting portion of the protrusion member 13 that communicates with this blind hole 13b and faces into the narrow diameter portion 11b. A recess 13c for rope locking is formed, and the elastic rope 1
One end of the rope 10 is inserted into the recess 13c from the blind hole 13b, and a knot for preventing the rope 10 from coming off is accommodated in the recess 13c. Then, such a stone protrusion member 13 is attached to the other end pole segment 1.
2 is fitted in the same way, and the other end of the elastic rope 10 is similarly connected to this end member 13, so that the elastic rope 10 is stretched between the pole segments 11 and 12 at both ends, and the pole unit 5 is adapted to maintain the fitted connection state of each pole segment.

The pole unit 5 having the above structure is used, for example, as a support for a hanging tent, and as shown in FIG. Each stone protrusion member 13 is grounded with its top crossed in a criss-cross pattern, and the tent sheet 14 is stretched by supporting the tent sheet 14 with respect to the pole units 5, 5 using hooks 15. In this case, the tapered portions 11a, 12a of the pole segments 11, 12 at both ends
By locking the hook 15 at the hem, the tent sheet 14 can be prevented from curling up, and each pole unit 5 has a restoring force to the straight state by the tension of the elastic rope 10 stretched inside. works, so the tent sheet 14 is stretched without loosening. Then, the tent is set up by pushing the stone protrusion member 13 into the ground, etc., but at this time, since the stone protrusion member 13 closes the end opening of the pole unit, foreign substances such as water and earth and sand can enter inside the pole unit 5. There is no
Even if the pole unit 5 is made of a material that is sensitive to stress corrosion cracking, it is possible to effectively prevent stress corrosion cracking accidents due to the intrusion of foreign objects, and it is also possible to prevent accidents in which the elastic rope 10 is cut due to foreign objects. .
Even if the elastic rope 10 is cut, the end member 13 that connects the rope 10 can be inserted into and removed from the pole segments 11 and 12 at both ends, so a new elastic rope 10 can be inserted into one end member 13. The other end of the rope 10 is passed through the inside of the pole unit 5 using a drawstring or the like, and the other end of the elastic rope 10 is connected to the other end member 13 outside the pole unit 5. The elastic rope 10 can be easily replaced with a chisel. In this way, when tensioning the elastic rope 10, there is no need to insert or remove a flat washer that digs into the inner circumferential surface of the pole segment as in the past, so there is no damage to the inner circumferential surface of the pole. Pole breakage accidents caused by stress corrosion cracking are prevented.

When the tent is to be taken down, the fitting connection portions of each pole segment are removed against the tension of the elastic rope 10, so that the pole unit 5 can be stored in a compact, meandering shape. When disassembling the pole unit 5, in this embodiment, the fitting connection part of each pole segment is coated with Teflon coating 9, so that even under extremely cold weather conditions such as winter mountain climbing, the fitting connection part can be easily removed. The pole unit 5 does not freeze, the trouble of heating with a torch burner etc. as in the conventional method is eliminated, the pole unit 5 can be easily disassembled or assembled, and the material of the pole unit 5 does not deteriorate due to repeated heating. There will be no fear.

FIG. 5 shows another embodiment of the stone protrusion member 13, and this stone protrusion member 16 has a collar portion 16a on the outer peripheral surface.
It has the same structure as the stone protrusion member 13 except for the fact that the brim 16a is engaged with the open end surface 17a of the pole segment 17 to which it is fitted, and the tent sheet 14 is engaged with the surface opposite to this engagement side. A supporting hook 15 can be locked. Therefore, there is no need to form narrow diameter portions in the pole segments 17 at both ends, and there is an advantage that pole segments having the same configuration as other pole segments can be used.

As explained above, according to the present invention, an elastic rope is stretched between a pair of stone protrusions that are locked to the open end faces of pole segments at both ends, so that a flat washer for rope locking, which was previously required, is used. Since it is unnecessary and the inner circumferential surface of the pole is not damaged,
Pole breakage accidents due to stress corrosion cracking can be prevented. In addition, since the stone end member closes the end openings of the pole segments at both ends, it is possible to prevent stress corrosion cracking on the inner circumferential surface of the pole due to the intrusion of foreign substances such as water and earth into the pole, and to prevent accidents such as cutting of the elastic rope. I can do it. Moreover, the end member that connects the elastic ropes can be inserted into and removed from the pole segments at both ends, and the connecting parts of the ropes can be exposed to the outside, making it easy to assemble and replace ropes without using special jigs and tools. You can obtain effects such as being able to do this.

[Brief explanation of drawings]

Fig. 1 is an overall front view of a conventional pole unit, Fig. 2a is an enlarged sectional view of part A in Fig. 1,
Fig. 2b is an enlarged cross-sectional view showing an embodiment of the present invention in the same part, Fig. 3a is an enlarged sectional view of part B in Fig. 1, and Fig. 3b is an embodiment of the present invention in the same part. FIG. 4 is a perspective view of the tent showing how the pole unit is used, and FIG. 5 is an enlarged sectional view showing another embodiment of the stone tip member. 5... Pole unit, 6, 7... Pole segment, 8... Joint pipe, 9... Teflon coating, 10... Elastic rope, 11,
12...Both end pole segments, 11a...Tapered part, 11b...Small diameter part, 13... Stone protrusion member, 1
3a...step, 13b...blind hole, 13c...recess,
14... tent sheet, 15... hook, 16...
...stone end member, 16a... collar portion, 17... pole segment, 17a... opening end surface.

Claims (1)

[Scope of utility model registration request] In a pole unit, an elastic rope is inserted into the pole segments that are fitted and connected in multiple stages, and this rope is stretched between the pole segments at both ends.
A pair of stepped stone members are provided which fit into the end openings of the pole segments at both ends to close the openings and are locked to the end faces thereof, into which a rope is inserted passing in the axial direction from the inner end face. A blind hole for the rope and a recess for rope locking that communicates with the blind hole and opens on the circumferential surface of the fitting part are formed, and both ends of the rope are passed through the blind hole of the stone end member into the recess for rope locking. A pole unit characterized by being stretched between a pair of stone prongs to prevent it from falling out.