JPH09195586A - Pantograph device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To decrease number of parts to reduce cost and prevent damage to a film material by forming a slide member provided at an end of a pantograph of a expansion type tent house for use as a garage, storeroom, and greenhouse from a guide rod and annular body. SOLUTION: A guide rod 4 on which an annular body 5 is loosely fitted is welded to a plurality of supports 2, onto which film materials are attached, and a wheel 9 is provided at the lower part of each support 2. In a pantograph 3, each of lower ends of a plurality of links 11 made of prism-shaped pipes intersecting each other in the form of X is pivotally connected to each support 2 through a horizontal axis 13 and an intersection of the links 11 is rotatably connected by means of a horizontal axis 12. The upper end of the link 11 is rotatably connected to the body 5 through a horizontal axis 16. If the supports 2 are moved toward or away from each other in front and rear direction, the pantograph 3 expands and contracts in front and rear direction and the annular body 5 smoothly rises and descends along the rod 4. Therefore, even if the relationship between each support 2 and pantograph 3 changes a little, the pantograph 3 can be smoothly expanded and contracted and the film material is not injured by being caught in a sliding part.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to, for example, a garage,
The present invention relates to an improvement of a pantograph device used for a telescopic tent house such as a shed and a greenhouse and an telescopic door.

[0002]

2. Description of the Related Art Conventionally, as a pantograph device of this type, for example, a device using an elongated hole and a roller (Jitsuko Sho 60-9) is used.
No. 340), one using two guide rods and rollers (No. 61-36706), one using rollers by using a supporting rod as a guide rod (Japanese Patent Laid-Open No. 49-41818, No. 60-Act 60-). No. 17472), using a short pipe by using the support rod as a guide rod (Actual No. 51-158133, No. 2-34369), using a bush by using the support rod as a guide rod (actual). KAISHO 54-131333) and the like are known.

[0003]

However, although the one using the roller and the bush can make the sliding smooth, the number of parts is increased and the cost is high, and
Although the number of parts is small in the case where the support pillar is used as the guide rod, there is a problem that the film body is easily caught in the sliding portion and the film body is easily damaged.

The present invention has been made in view of the above problems and was devised to solve the problem. The object of the present invention is to reduce the number of parts as much as possible to reduce the cost and the film body. It is an object of the present invention to provide a pantograph device capable of preventing damage to the body.

[0005]

A pantograph device according to the present invention comprises a plurality of columns arranged at a predetermined interval in the front-rear direction, and a plurality of links provided between the columns and connected in an intersecting manner. One of the upper and lower ends of the upper and lower ends of the pantograph is pivotally connected to each strut so that each strut can be expanded and contracted in the front-rear direction, a vertical guide rod provided on each strut, and the other of the upper and lower ends of the pantograph. It is characterized in that it is composed of a ring body that is loosely fitted into each guide rod.

When one of the columns is moved in the front-rear direction so that the other column is moved toward and away from the one column, the pantograph is expanded and contracted in the front-rear direction to expand and contract each column. At this time, the ring is moved up and down along the guide rod. Since the sliding portion is constituted by the ring body and the guide rod, the number of parts can be minimized. Since the guide rod is provided separately from the support, there is no fear that the film body attached to the support will be caught in the sliding portion and be damaged.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a pantograph device of the present invention. FIG. 2 is a perspective view showing a state in which the telescopic tent house is formed. FIG. 3 is an enlarged perspective view of a main part of FIG. The pantograph device 1 includes a column 2, a pantograph 3,
A main part of the guide rod 4 and the ring 5 is formed.

The pillars 2 are a plurality of pillars arranged at a predetermined interval in the front-rear direction. In this example, the pillars 2 are of a gate type composed of left and right vertical pieces 6 and horizontal pieces 7 connecting these upper parts. , Made of 6 pieces made of round pipe. Wheels 9 are provided at the bottom of each of the columns 2 via a rectangular seat plate 8. In this example, the wheels 9 are casters that can swivel on the road surface, and the front and rear wheels located at the outermost ends are provided with brakes. Curtain rails 10 are provided above the front and rear columns 2 located at the outermost ends.

In the pantograph 3, one of the upper and lower ends of a plurality of links 11 provided between the columns 2 and pivotally connected in a crossed manner is pivotally connected to the columns 2 so that the columns 2 can be expanded and contracted in the front-rear direction. In this example, two square pipe links 11 are formed in an X shape, and the intersections thereof are pivotally connected by a horizontal axis 12, and five links are provided on the left and right. The horizontal shaft 12 is composed of a bolt inserted into a through hole formed in the center of each link 11, a washer inserted into the bolt, and a cap nut screwed to the bolt. Of the lower ends of the links 11 of each pantograph 3, the front and rear ones located at the outermost end are pivotally connected to the lower inner surface of the vertical piece 6 of the support column 2 by the horizontal axis 13, and other than this, Adjacent ones are overlapped and pivotally connected to the column 2 by the same horizontal shaft 13. The horizontal shaft 13 includes a bolt which is planted by welding on the lower inner surface of the vertical piece 6 of the column 2 and is inserted into a through hole formed in the lower end of the link 11, and a collar and a washer which are fitted into the bolt. , With a cap nut screwed onto the bolt.

The guide rod 4 is provided on each of the columns 2 in the vertical direction, and in this example, it has a substantially U shape composed of upper and lower horizontal pieces 14 and a vertical piece 15 connecting these one side to each other. It is made by bending a round bar, and the other side of each horizontal piece 14 is attached to the upper inner surface of the vertical piece 6 of each strut 2 by welding.

The ring 5 is provided on the other of the upper and lower ends of the pantograph 3 and is loosely fitted to each guide rod 4. In this example, the ring 5 is an eye nut, and the guide rod 4 is welded to the column 2. It has been inserted through the guide rod 4 in front. Thus, ring 5
Is provided on the upper end of the link 11 of each pantograph 3. That is, of the upper ends of the links 11 of each pantograph 3, the front and rear ones located at the outermost end are provided with the horizontal axis 16, and the other ones are the same because adjacent ones are overlapped. It is pivotally connected by the horizontal shafts 16, and the ring body 5 is provided on these horizontal shafts 16. The horizontal axis 16 is a screw rod (headless bolt) inserted in a through hole formed in the upper end of the link 11, a washer inserted in this, and a cap nut screwed to the inner end of the bolt. , With nuts that are screwed onto the outer ends of the bolts. Ring 5
The eye nut is screwed to the outer end of the bolt.

A film body (tent sheet) 51 is attached to the outside of each of the columns 2 of the pantograph apparatus 1 thus constructed, and the curtain 5 is attached to the curtain rail 10.
2 is attached to form a telescopic tent house 50 shown in FIG.

Next, the operation will be described based on such a configuration. When the other strut 2 is moved in the front-rear direction so that the other strut 2 approaches the one strut 2, the pantograph 3 is expanded and contracted in the front-rear direction so that each strut 2 is expanded and contracted. At this time, ring 5
Is moved up and down along the guide rod 4. Since the sliding portion is constituted by the guide rod 4 and the ring body 5, the number of parts can be minimized. Since the guide rod 4 is provided separately from the support column 2, there is no fear that the film body 51 attached to the support column 2 will be caught in the sliding portion and be damaged. Since the ring body 5 is loosely fitted to the guide rod 4, even if the relationship between the support column 2 and the pantograph 3 is slightly displaced, the ring body 5 is smoothly guided and does not interfere with the expansion and contraction of the pantograph 3. Since the telescopic tent house 50 is provided with the wheels (casters) 9, it can be extended during use and contracted when not in use to be moved to an appropriate storage location. The telescopic tent house 50 is a film body 5.
If the 1 and the curtain 52 are made transparent, they can be used in a greenhouse.

Incidentally, the pantograph device 1 is
I applied it to the telescopic tent house 50, but not limited to this,
For example, it may be applied to a telescopic door having a film body. Although the number of columns 2 is six in the above example, the number of columns 2 is not limited to this, and a plurality of columns other than this may be used, for example. In the above example, the pantograph 3 is one in which two links 11 are pivotally connected to each other in an X-type, but the present invention is not limited to this. It may be a tied one. Although the guide rod 4 is substantially U-shaped in the above example, the guide rod 4 is not limited to this and may be, for example, a substantially L-shaped one in which one of the upper and lower horizontal pieces 14 is omitted. In the above example, the upper and lower horizontal pieces 14 are welded to the supporting column 2 so that the guide rod 4 is attached in a non-removable manner. good. Although the ring body 5 is an eye nut in the above example, the ring body 5 is not limited to this, and may be an eye bolt integrated with the spiral rod of the horizontal shaft 16, for example. Although the wheel 9 is a caster in the above example, the wheel 9 is not limited to this, and may be a bearing ring that is guided by a rail 17 and rolls thereon, as shown in FIG. 4, for example. The bearing ring 9 is rotatably provided on an inverted U-shaped frame 18 attached to the lower portion of the seat plate 8 by means of a lateral axle 19, and the frame 18 has a bolt for preventing wheel removal. Two
0 is provided.

[0015]

As described above, according to the present invention, as described above,
The following excellent effects can be obtained. (1) Since it is composed of a pillar, a pantograph, a guide rod, and an annulus, and in particular, the sliding portion is composed of a single guide rod and an annulus that is loosely fitted to this, the number of parts is minimized and the cost is reduced. It is possible to prevent the damage of the film body as well as to reduce. (2) Since the sliding part is composed of a single guide rod and an annulus that is loosely fitted to this, even if the relationship between the support column and the pantograph is slightly displaced, it can be smoothly guided to expand and contract the pantograph. There will be no trouble.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a pantograph device of the present invention.

FIG. 2 is a perspective view showing a state in which the telescopic tent house is formed.

FIG. 3 is an enlarged perspective view of a main part of FIG.

FIG. 4 is an enlarged front view of essential parts showing another example of the present invention.

[Explanation of symbols]

1 ... Pantograph device, 2 ... Posts, 3 ... Pantograph,
4 ... Guide rod, 5 ... Ring body, 6, 15 ... Vertical piece, 7, 14 ...
Horizontal piece, 8 ... Seat plate, 9 ... Wheel, 10 ... Curtain rail,
11 ... Link, 12, 13, 16 ... Horizontal axis, 17 ... Rail, 18 ... Frame, 19 ... Axle, 20 ... Bolt, 50 ... Telescopic tent house, 51 ... Membrane, 52 ... Curtain.

Claims (1)

[Claims] 1. A plurality of columns arranged at a predetermined interval in the front-rear direction, and one of upper and lower ends of a plurality of links provided between the columns and connected in a cross shape is pivotally connected to each column. Pantographs that are connected to each other so that they can expand and contract in the front-back direction, vertical guide rods that are provided on each column, and rings that are provided on the other of the upper and lower ends of the pantograph and that are loosely fitted to each guide rod. A pantograph device characterized by being composed of a body and a body.