JPS6348873Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] This invention relates to a simple tripod made of synthetic resin that can be easily assembled and manufactured without using adhesives, screws, or other fasteners. It is.

[Technical background of the invention and its problems]

Traditionally, tripods used for telescopes, cameras, etc.
Emphasis is placed on its strength and accuracy, and at least
Since the mounting base of a telescope, camera, etc. needs to rotate and the legs can be opened and closed, the structure of the joint between the mounting base and the legs is complicated, and the manufacturing cost is extremely high.

However, recently, telescopes, cameras, etc. have changed from full-scale ones to compact ones that are easy to use, and there has been a desire for a simple and inexpensive tripod that can be used with such things. In particular, for telescopes, extremely lightweight and inexpensive products are available whose components are all made of synthetic resin, and conventional tripods are too expensive to manufacture for use with such telescopes. It had drawbacks.

In addition, in view of such circumstances, devices designed to simplify the configuration as much as possible have been provided. For example, according to Utility Model Application Publication No. 58-19194,
legs each having a rotating carrier at the base; a seat on the lower surface having a recess into which the carrier fits and comes into contact on substantially the same circumference around the central axis of the fixing screw; and a neck portion of the carrier. A tripod is disclosed, which is comprised of a bottom plate provided with a radial notch for transition and a screw for fixing the bottom plate to a catch, and in which the bottom plate and the catch are tightened with the screws to fit and hold the rotary carrier in the recess. There is.

However, according to this method, the formation and assembly is troublesome as it requires the use of screws.
The opening/closing operation of the legs is also unstable, and when the legs are opened, the neck of the rotating carrier comes into contact with the seat or the lower edge corner of the bottom plate, making it easy to break and posing problems in terms of strength.

Furthermore, Japanese Utility Model Publication No. 51-23336 discloses a tripod in which the upper end of the leg is formed into a substantially hook shape, and this is pivotally supported by a protruding pin.

However, this structure also has a structure in which the upper end of the leg is pivoted on a pin and the leg swings, so the opening and closing movement of the leg is unstable due to wobbling, and when the leg is opened, Since the upper edge of the leg is locked to the edge of the notch of the sliding tube, the notch or the upper end of the leg is easily broken, and the pin is also easily broken.

[Purpose of invention]

Therefore, this invention was devised to eliminate the above-mentioned drawbacks, and by simply assembling synthetic resin components without using adhesives, screws, etc., it can be manufactured at an extremely low cost. To provide a simple tripod which can perform stable and smooth opening/closing operations of its legs and has sufficient strength.

[Summary of the idea]

For this reason, the gist of this invention is to provide a tripod made of synthetic resin components that can be assembled freely, with a leg portion having an approximately inverted J-shaped engagement portion at the base end, and an engagement portion between the legs. A leg support board is formed with an engagement notch that is fitted with a support part that has approximately the same width as the part and supports the leg part so that the leg part can swing freely; A lid part that is attached to the crown and supports the engaging part of the leg part in cooperation with the support part so that the leg part can be opened and closed, and an insertion hole formed in the leg support plate and the lid part. , and a rotary disk having a protruding support rod that is elastically fitted and pivotally supported; An abutment surface that vertically abuts on the inner surface of the part is formed, and the supporting part is connected to a supporting upper part having an arc surface corresponding to a substantially circular arc-shaped side surface of the inner surface of the engaging part, and when the leg part is closed. and a lower support portion having an inwardly inclined slope that abuts the vertical portion of the inner surface of the engaging portion.

[Example of idea]

An embodiment of this invention will be described below with reference to the drawings.

As shown in the figure, the tripod of this invention is
A leg 1 made of synthetic resin, a leg support plate 2 that supports the legs so as to be openable and closable, a lid 3 attached to the leg support plate 2, and a leg support plate 2 and a lid 3 are each provided with a It can be freely assembled from a rotary disk 4 having a protruding support rod 6 that elastically fits into the inserted insertion hole 5 and pivotally supports the leg support disk 2 and the lid 3 at the bulging portion 7 at the tip. It is composed of

The leg portion 1 is provided with an approximately inverted J-shaped engaging portion 8 at its base end, and this engaging portion 8 is attached to the side wall of the approximately disc-shaped leg support plate 2 having a tapered surface. to the support part 10 provided at the lower position of the inner surface of the engagement notch 9 which is cut out so as to have approximately the same width as the engagement part 8 which is the base end of the leg part 1. ,
The leg part 1 is supported so as to be able to swing and open/close. That is, at the tip of the proximal end of the leg 1, there is a second
As shown in the figure, an abutment surface 1a is formed that vertically abuts on the back surface of the notch 9 of the leg support board 2 when the leg 1 is open. As shown in FIG. 2, the support part 10 provided in the engagement notch 9 includes a support upper part 8a having an arc surface corresponding to a substantially arc-shaped side surface of the inner surface of the engagement part 8, and a leg part. and a lower support portion 8b having an inwardly inclined slope that abuts the vertical portion of the inner surface of the engaging portion 8 when the portion 1 is closed.

Moreover, the lid part 3 attached to the leg support board 2 is formed in a shape that corresponds to and covers the outer surface of the leg support board 2, and is adapted to engage the base end of the leg part 1 supported on the support part 10. The outer surface of the part 8 is supported from the outside, and the leg part 1 is swingably sandwiched between the part 8 and the leg support plate 2 to prevent the leg part 1 from falling off. This lid part 3 is fitted and engaged with the leg support plate 2, and is pivotally supported by a support rod 6 protruding from the lower surface of the rotary plate 4 through an insertion hole 5 drilled in the center of each. By this, the leg support plate 2 and the lid part 3 are fixed.

That is, the rotary disk 4 has a bulge 7 on its lower surface that is fitted into the insertion hole 5 and that is larger in diameter than the insertion hole 5 at its tip.
A supporting rod 6 is formed in a protruding manner, and this supporting rod 6 is provided with a resilient notch 11 which is cut out from the distal end toward the proximal end and has an approximately inverted U-shaped side surface. When the portion elastically narrows in the direction of the resilient notch 11 and is inserted into the insertion hole 5 of the leg support plate 2 and the lid portion 3, and the swollen portion 7 at the tip passes through the insertion hole 5, the eyelet narrows. The expanded portion 7 is released and restored, fixing the leg support plate 2 and the lid portion 3 so that they do not fall off, and rotatably supporting the rotary disk 4. At this time, since the bulging portion 7 at the tip of the support rod 6 has a tapered surface so as to have a conical shape toward the tip as shown in the figure, it can be easily inserted into the insertion hole 5 and the shaft can be stably inserted. can be supported.

On the upper surface of the rotary disk 4, two mounting pieces 13 are erected in parallel, each having a mounting hole 12 to which a telescope is mounted. Therefore, since the rotating disk 4 is rotatable, the telescope attached to the mounting piece 13 can freely rotate and select the direction.

Next, to explain how to assemble this, the engagement notch provided at the base end of the leg 1 is connected to the support part 10 provided on the back surface of the engagement notch 9 cut out on three sides of the side wall of the leg support plate 2. The three leg parts 1 are supported by hooking the part 8, and the leg part 3 is attached from above, so that the engaging part 8 of the leg part 1 is swingably clamped. Then, turntable 4
The bulging part 7 at the tip of the support rod 6 protruding from the lower surface is narrowed by pressing from both sides in the direction of the resilient notch 11, and the insertion hole 5 drilled in the leg support plate 2 and the lid part 3 is narrowed. , and the rotary disk 4 is brought into contact with the upper surface of the lid part 3. Then, the bulging part 7 at the tip of the support rod 6 penetrates the leg support plate 2 and the lid part 3 and is released by popping out to the outside, and returns to its original state due to elastic restoring force, and the rotary plate 4
The leg support board 2 and the lid part 3 are fixed together.

[Effect of idea]

Therefore, the simple tripod according to this invention has a leg part 1 which is made of synthetic resin and has a substantially inverted J-shaped engagement part 8 at its base end, and a leg part 1 that fits into the engagement part 8 of the leg part 1. A leg support plate 2 having an engaging notch 9 provided with a support part 10 that supports the leg part 1 so as to be able to swing freely; a lid part 3 that supports the engaging part 8 of the leg part 1 so that the leg part 1 can be opened and closed; and an insertion hole 5 formed in the leg support plate 2 and the lid part 3. The rotary disk 4 has a protruding support rod 6 that is elastically inserted into the rotary disk 4 and is pivotably supported, so it can be easily assembled without using adhesives or fasteners such as screws. It has a small number of parts and can be manufactured at extremely low cost.

Moreover, the engagement notch 9 of the leg support plate 2 has approximately the same width as the engagement part 8 of the leg 1, and the support part 10 has a substantially arcuate side surface on the inner surface of the engagement part 8. The support upper part 10a has an arcuate surface corresponding to the part, and the support lower part 10b has an inwardly inclined slope that comes into contact with the vertical part of the inner surface of the engaging part 8 when the leg part 1a is closed. The engagement part 8 of the leg part 1 firmly engages with the support part 10 provided in the engagement notch part 9 of the leg support board 2, and the leg part 1 can be opened and closed smoothly without wobbling.

Furthermore, since a contact surface 1a is formed at the tip of the proximal end of the leg 1, which vertically abuts against the inner surface of the engagement notch 9 of the leg support plate 2 when the leg 1 is open, When the leg 1 is opened during use, this abutting surface 1a collides with the inner surface of the engagement notch 9, stopping the opening, and the leg 1 is supported by the engagement of the surfaces, so it does not break easily. Not enough strength can be obtained.

In addition, since each component is made of synthetic resin, it is lightweight and difficult to damage, making it convenient to carry.

As explained above, this simple tripod is easy to assemble and has a small number of parts, so it can be manufactured at an extremely low cost, and the legs can be opened and closed stably and smoothly. , has various practical effects such as having sufficient strength.

[Brief explanation of the drawing]

The figures show one embodiment of this invention, with FIG. 1 being an exploded perspective view and FIG. 2 being an enlarged sectional view of the main parts. DESCRIPTION OF SYMBOLS 1... Leg part, 1a... Abutment part, 2... Leg support plate, 3... Lid part, 4... Rotating disk, 5... Insertion hole,
6...Support rod, 7...Bulging part, 8...Engaging part, 9
. . . Engagement notch portion, 10 . . . Support portion, 10 a .

Claims (1)

[Scope of utility model registration request] In a tripod made of synthetic resin components that can be assembled freely, the leg portion has a substantially inverted J-shaped engagement portion at the base end, and the leg portion is fitted with approximately the same width as the engagement portion of the leg portion. , a leg support plate in which an engagement notch is formed and a support part for supporting the leg part so as to be slidable; A lid part that supports the engaging part of the leg so that the leg can be opened and closed; and a support that elastically fits into and pivots through an insertion hole formed in the leg support plate and the lid part. The base end of the leg has an abutment surface that vertically abuts against the inner surface of the notch of the leg support board when the leg is open. a supporting upper portion having an arcuate surface corresponding to a substantially circular arc-shaped side surface of the inner surface of the engaging portion;
A simple tripod characterized in that it is formed from a lower support having an inwardly inclined slope that abuts the vertical part of the inner surface of the engaging part when the leg part is closed.