JP3172153U - A chair with a seat that can be turned upside down - Google Patents

Abstract

[PROBLEMS] To provide a chair that can always be used with a clean seat surface even when the seat surface gets wet or is scribbled or scratched due to rain. A seat portion 2 and a chair body portion 4 that supports the seat portion 2 from below are provided. The first seat surface 21 and the second seat surface 22 provided on the front and back of the seat portion 2 are configured to be seatable, respectively, so that the seat portion 2 can be turned upside down via the universal joint 5. The universal joint 5 is provided in the slit 23 in front of the seat portion 2, and the circular portion 24 in front of the seat portion 2 is the chair body portion even when the seat portion 2 is caused to move forward and the front and back are reversed. Do not hit 4. [Selection] Figure 1

Description

  The present invention relates to a structure of a chair, and preferably relates to a chair that can be used outdoors.

  In general, chairs that allow many people to sit are installed in parks, stations, and bus stops. Since such a chair is often exposed to wind and rain, it is often composed of synthetic resin, metal, stone, etc. so as to withstand the environment.

  However, even if the seat is made of such a material, the seat surface gets wet after it rains, and the seat cannot be seated only after the rainwater is wiped off.

  Therefore, a chair has been proposed in which the seat surface is not wetted by rain even when it rains.

  For example, Japanese Patent Laid-Open No. 9-187346 proposes a chair that can cover the seat surface by tilting the backrest portion toward the seat surface side. According to such a chair, since the seat surface can be covered by tilting the backrest portion toward the seat surface, the seat surface does not get wet with rain water, and the seat surface is not soiled by dirt or dust. In addition, the backrest portion will not get wet with rain water.

JP-A-9-187345

  However, in a chair with such a structure, someone has to tilt the backrest part to the seat side before it rains, so if it rains before tilting the backrest part, You cannot sit down without wiping off the water drops on the seat. In general, such a chair will give the user a sense of resistance to use because the seat surface becomes dirty if the seat surface is scribbled or scratched.

  Therefore, the present invention aims to provide a chair that can always be used with a clean seating surface even when the seating surface gets wet, or graffiti or scratches are attached due to rain. To do.

  That is, in order to solve the above-described problems, the present invention provides a chair provided with a chair main body and a seat supported by the chair main body, and seats provided on the front and back sides of the seat. And a reversing mechanism that is attached to a part of the chair body and reverses the seat on the front side to the seat on the back side while the seat is lifted from the chair body. is there.

  In this way, the seating surface can be used upside down, so even if one seating surface gets wet with rain, using the seating surface on the back side ensures that the seating surface is always clean. You will be able to sit in. Moreover, since the seat part is being fixed to the chair main-body part via the inversion mechanism, a seat part will not be removed by a strong wind or mischief.

  In addition, when such a reversing mechanism is provided, the upright rotating part that erects and tilts the seat part around the front end side where the thigh is located, and the seating surface of the sitting part that is erected and tilted by the upright rotating part are turned over. It is made to provide the front and back inversion part to be made.

  In this way, even if the backrest portion is provided, the seat portion can be raised to the front end side, so the space for reversing the front and back is widened, and the seat portion can be easily turned upside down. Can be reversed.

  Furthermore, in another device, it can be configured by a slide rail that lifts upward while keeping the seat surface horizontal, and a mechanism that reverses the seat surface around a fastener that slides on the slide rail.

  Even in this case, when the seat portion is reversed, the seat portion can be lifted up to a position where the front and back surfaces are easily reversed, and can be reversed there.

  On the other hand, the reversing mechanism includes an upright rotating portion that erects and tilts the seat portion around the rear end side where the collar portion is located, and a front and back reversing portion that inverts the seating surface of the seat portion erecting and tilting by the upright rotating portion. It can also be prepared.

  Further, at this time, the seat part tilted and tilted can be reversed upside down while being slid to the front end side.

  In this way, even when the seat portion is turned upside down in a situation where the backrest portion is provided, the seat portion can be slid forward to a position where the front and back sides can be turned upside down.

  According to the present invention, in a chair comprising a chair body portion and a seat portion supported by the chair body portion, a seat surface provided on the front surface side and the back surface side of the seat portion, and the chair body portion. And a reversing mechanism for reversing the seating surface on the front surface side to the seating surface on the back surface side in a state where the seating portion is lifted from the chair body portion, so that one seating surface is rained Even when wet, it is possible to always sit on a clean seat by using the seat on the back side. Moreover, since the seat part is being fixed to the chair main-body part via the inversion mechanism, a seat part will not be removed by a strong wind or mischief.

Schematic side view of a chair showing an embodiment of the present invention Front schematic view of chair in the same form The figure which shows the front and back inversion mechanism in the same form The figure which shows the state which reverses the front and back of the seat part in the same form Schematic front view showing the chair in the second embodiment The figure which shows the state which reverses the front and back of the seat part in 2nd embodiment Side schematic diagram showing a chair in the third embodiment The figure which shows the state which reverses the seat part in 3rd embodiment Schematic side view showing a chair in the fourth embodiment Schematic plan view showing a chair in the fourth embodiment The figure which shows the state which reverses the front and back of the seat part in 4th embodiment

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The chair 1 in the present embodiment is installed outdoors such as in a park or the like. As shown in FIGS. 1 and 2, a seat 2 on which a person is seated and a chair body that supports the seat 2. Part 4 and a universal joint 5 for reversing the front and back of the seat 2 180 degrees on the chair body 4, and when the first seating surface 21 of the seat 2 is soiled by rainwater or graffiti. Even in such a case, the seat surface is turned upside down through the universal joint 5 which is a front / back reversing mechanism, and the seat can be seated using the second seating surface 22 on the back side. Hereinafter, the structure of the chair 1 in the first embodiment will be described in detail.

  The seat portion 2 is configured to be front and back symmetrical, and is configured of a synthetic resin or the like that can easily remove the water droplets even when water droplets or the like adhere to the front and back surfaces. A semicircular circular portion 24 is provided at the edge portion of the front end side of the seat portion 2 when the hip portion position side of the seat portion 2 is the rear end portion and the side where the thigh is located is the front end portion. In addition, the universal joint 5 is attached by providing a slit 23 as shown in FIG.

  As shown in FIGS. 2 and 3, the universal joint 5 is configured to rotate the seat portion 2 around the X axis when the vertical direction is the Z direction and the front-rear direction of the paper surface of FIG. 3 is the X direction. A single shaft 51 and a second shaft 52 that rotates the standing seat portion 2 180 degrees around the Z axis are provided, and the seat surface is reversed upside down around the first shaft 51 and the second shaft 52. Yes. The center of rotation of the first shaft 51 is provided on the center line of the circular portion 24 of the seat portion 2, and from the second seat surface 22 of the second member 53 that pivotally supports the second shaft 52 to the chair body portion 4. The distance (that is, the distance D in FIG. 3) is set longer than the radius R of the circular portion 24. Even when the seat portion 2 is erected by providing the first shaft 51 at such a position and making the length of the second member 53 longer than the radius R, the circular portion 24 at the front end is Avoid contact with the chair body 4. Further, the universal joint 5 is provided so as to be concealed in the slit 23 so that the human leg is not brought into contact with the universal joint 5 when sitting.

  The chair main body 4 is configured by providing leg portions and a metal support frame 3 that connects these leg portions, and the seat portion 2 can be placed on the support frame 3. A soft cushion material 31 is wound around the horizontal support frame 3, and even when the seat 2 is placed on the support frame 3, noise caused by contact with the metal frame is eliminated, and when sitting. It is designed to have a cushioning property.

  On the rear end side (saddle side) of the seat portion 2, a fixing portion 62 is provided for preventing the seat portion 2 from standing and tilting when seated. The fixing portion 62 is provided with a concave portion 62a on the front surface side of the standing frame 61, and the seat portion 2 is temporarily fixed by fitting the rear end portion 25 of the seat portion 2 into the concave portion 62a. At this time, the recess 62a may be constituted by an elastic body such as rubber, or the seat 2 may be fixed and released by moving the recess 62a forward and backward. Here, the recess 62a is formed of an elastic body such as rubber so that the seat 2 can be fixed.

  The backrest portion 6 is configured by providing a standing frame 61 provided in the vertical direction and a back plate 63 attached to the front of the standing frame 61. If the back plate 63 has a thickness for providing cushioning properties, the rear end portion 25 of the seat portion 2 hits the back plate 63 when the seat portion 2 is raised and cannot be raised. For this reason, it is preferable to make the back plate 63 relatively thin so that the rear end portion 25 of the seat portion 2 does not hit when the seat portion 2 stands.

  Next, a method of using the chair 1 configured as described above will be described with reference to an operation example of FIG.

  First, a state (second state) in which the second seating surface 22 on the back surface side is used from a state where the first seating surface 21 of the seat portion 2 is used (first state, ie, the state of FIG. 1) An example of operation when switching to () will be described.

  When the rear end portion 25 of the seat portion 2 is lifted by hand in the first state, the rear end portion 25 of the seat portion 2 can be pulled away from the recessed portion 62a as shown in FIG. At this time, since the recessed part 62a is comprised with elastic bodies, such as rubber | gum, the seat part 2 can be pulled away from the recessed part 62a by raising the rear end of the seat part 2 strongly. When the seat portion 2 is pulled apart in this way, the seat portion 2 stands while rotating around the first shaft 51 of the universal joint 5 in front. At this time, the first shaft 51 is provided on the central axis of the circular portion 24, and the distance D from the second seat surface 22 to the chair main body portion 4 in the second member 53 is the radius R of the circular portion 24. Therefore, the front end of the seat 2 can be rotated without contacting the support frame 3 of the chair main body 4 or the like. And after raising the seat part 2 in the vertical state, the seat part 2 is rotated 180 degrees around the Z axis to be reversed (FIG. 4B). And in order to perform the reverse operation, the seat 2 is returned to the chair body 4 with the second seat 22 facing the upper surface, and the rear end 25 of the seat 2 is fitted into the recess 62a. Even when seated, the seat 2 is prevented from rattling (FIG. 4C).

  As described above, in the above embodiment, the universal joint 5 is provided so that the seating surface is reversed, so that it is possible to always sit using a clean seating surface. Moreover, since the universal joint 5 is fixed to the front end side of the chair main body 4, the seat 2 is not removed due to strong winds or mischief, and the backrest 6 is rotated during rotation. No longer get in the way.

<Second Embodiment>
Next, a second embodiment of the present invention will be described. In the first embodiment, the seat portion 2 is erected and tilted around the front end side so as to be turned upside down. In the second embodiment, as shown in FIGS. 2 is lifted in a horizontal state and turned upside down above the support frame 3. Hereinafter, a second embodiment will be described with reference to the drawings. In addition, what attached | subjected the same code | symbol as 1st embodiment in 2nd embodiment shall have the same structure as 1st embodiment.

  As shown in FIG. 5, the chair 1 according to the second embodiment divides the center of the back plate 63 of the backrest portion 6 in the vertical direction, and provides a slide rail 55 along the vertical direction. When the slide rail 55 is attached, the slide rail 55 is attached to the upright frame 61 and the like so that the slide rail 55 does not protrude from the surface of the back plate 63 in order to prevent it from hitting the back when the backrest is seated. A slide pin 54 for sliding along the slide rail 55 is attached to the end portion 25. The slide pin 54 has a circular shape so that the seat 2 can be reversed, and when the seat 2 is lifted above the support frame 3, the seat 2 is reversed 180 degrees. Can be done.

  And when replacing the seat surface of the chair 1 comprised in this way, as shown to Fig.6 (a), the seat part 2 is lifted along the slide rail 55 in a horizontal state. Then, with the seat portion 2 lifted to a predetermined height position, the seat portion 2 is turned upside down by 180 degrees (FIG. 6B), and the seat surface is turned upside down with the seat portion 2 supported by the support frame. 3 Lower the seat so that it can be seated.

  If comprised in this way, even if it is a case where the backrest part 6 is provided, the seat part 2 can be reversed front and back, without making the backrest part 6 contact. Further, when seated, a load is applied from above the seat portion 2, so that a load is not applied to a part of the seat portion 2 at the time of seating and the seat portion 2 is not tilted upright.

  <Third embodiment>

  Next, a third embodiment will be described with reference to FIGS. In addition, what attached | subjected the code | symbol same as 1st embodiment in 3rd embodiment shall have the same structure as 1st embodiment.

  In the third embodiment, in the chair provided with the backrest portion 6, the front / back reversing mechanism is provided on the rear end portion 25 side of the seat portion 2.

  In FIG. 7, reference numeral 56 denotes a hinge mechanism that erects the front end side of the seat portion 2 around the rear end portion 25 side of the seat portion 2. The hinge mechanism 56 is fixed to the support frame 3 that forms the chair main body portion 4 as in the first embodiment, and prevents the seat portion 2 from being detached from the chair main body portion 4. Is attached with a rod-like shaft 57 protruding forward. The shaft 57 is slidably inserted between the front surface and the back surface of the seat portion 2, and the seat surface can be exchanged by reversing the seat portion 2 around the axis. The shaft 57 prevents the seat portion 2 from coming off from the shaft 57 when passing through the seat portion 2.

  When the seat part 2 in such a chair 1 is turned upside down, as shown in FIG. 8A, first, the front end side of the seat part 2 is lifted and raised about 45 degrees. In this state, the seat portion 2 is pulled forward along the shaft 57, and the seat portion 2 is turned upside down around the shaft 57 at a predetermined position (FIG. 8B). Then, after reversing the front and back, the seat 2 is pushed along the shaft 57, and the seat 2 is placed on the support frame 3 via the hinge mechanism 56.

  Even in this case, the seat surface can be replaced by raising the seat portion 2 around the rear end portion 25 side.

  <Fourth embodiment>

  Next, a fourth embodiment will be described with reference to FIGS. The chair 1 in the fourth embodiment divides the seat portion 2 into a lower seat portion 2d and an upper seat portion 2u, and places the upper seat portion 2u on the lower seat portion 2d, and the upper seat portion 2u from the side surface side. A U-shaped auxiliary frame 58 that is rotatably supported is attached so that the upper seat portion 2u is turned upside down, and the lower seat portion 2d can be used with the auxiliary frame 58 standing upright. .

  The auxiliary frame 58 in this embodiment is attached by providing a hinge mechanism 56b on the backrest part 6 side so that it can stand up around the hinge mechanism 56b, and the front end portion is a side surface of the upper seat 2u. It is provided so as to extend to the center portion in the longitudinal direction. The front end portion is attached to the side surface of the upper seat portion 2u via a rotation shaft 59 so that the upper seat portion 2u can be turned upside down via the rotation shaft 59 (FIG. 11B).

  On the other hand, the lower seat portion 2d can support the upper seat portion 2u from below and can be used as a seating surface when the upper seat portion 2u is erected. It is configured with a seating surface. When the upper seat 2u is placed on the mesh or belt, the back surface can be air-permeable and the back can be dried, and the lower seat 2d is used. In this case, air permeability at the time of sitting can be improved.

  As described above, according to the fourth embodiment, the auxiliary frame 58 is provided so as to cover the side surface portion of the upper seat portion 2u, and the auxiliary frame 58 is turned upside down around the center portion of the side surface of the upper seat portion 2u. Therefore, the strength of the side surface can be maintained by supporting two points, and it is not easy to break compared to the case of supporting one point. In addition, since the lower seat portion 2d can be used, more seating surfaces can be used, and diversity at the time of sitting can be secured.

  In addition, this invention is not limited to the said embodiment, It can implement in a various aspect.

  For example, in the above-described embodiment, the backrest 6 is provided. However, when used as a park bench or the like, the backrest 6 may be omitted.

  In the first embodiment, the recessed portion 62a is attached to the standing frame 61 to fix the seat portion 2. However, any fixing portion can be used as long as the seat portion 2 can be fixed. Good. As an example of such a fixing portion, a magnet or the like may be used, and this magnet may be attached to the synthetic resin of the seat portion 2 and magnetically attached to the metal frame.

  Furthermore, in the said embodiment, although the universal joint 5 etc. are attached to the support frame 3, you may make it attach not only the support frame 3 but the front-and-back inversion mechanism to the chair main-body part 4. FIG.

DESCRIPTION OF SYMBOLS 1 ... Chair 2 ... Seat part (2u ... Upper seat part, 2d ... Lower seat part)
21 ... 1st seat surface 22 ... 2nd seat surface 23 ... Slit 24 ... Circular part 25 ... Rear end part 3 ... Support frame 31 ... Cushion material 4 ... Chair body 5 ... Front / reverse reversing mechanism (universal joint)
51 ... First shaft 52 ... Second shaft 53 ... Second member 54 ... Slide pin 55 ... Slide rail 56, 56b ... Hinge mechanism 57 ... Shaft 58 ... Auxiliary frame 59 ... rotating shaft 6 ... backrest part 61 ... standing frame 62 ... recessed part 63 ... back plate

That is, in order to solve the above-described problems, the present invention provides a chair provided with a chair main body and a seat supported by the chair main body, and seats provided on the front and back sides of the seat. A vertical rotation part that raises and tilts the seat part around the front end side where the thigh is located, and a front and back inversion part that reverses the seat surface of the seat part that is raised and tilted by the vertical rotation part. It is a thing.

In this way, the seating surface can be used upside down, so even if one seating surface gets wet with rain, using the seating surface on the back side ensures that the seating surface is always clean. You will be able to sit in. Moreover, since the seat part is being fixed to the chair main-body part via the inversion mechanism, a seat part will not be removed by a strong wind or mischief. In addition, even if the backrest part is provided, the seat part can be raised to the front end side, so the space for reversing the front and back becomes wide and the seat part can be easily reversed. become able to.

According to the present invention, it is possible the seating surface of the hand even when wet with rain, by using a seat surface of the back side, always seated in a clean seating surface. Moreover, since the seat part is being fixed to the chair main-body part via the inversion mechanism, a seat part will not be removed by a strong wind or mischief.

Claims (5)

In a chair comprising a chair main body and a seat supported by the chair main body,
A seat surface provided on the front surface side and the back surface side of the seat portion;
A reversing mechanism that is attached to a part of the chair body, and inverts the seat on the front side to the seat on the back side in a state where the seat is lifted from the chair body,
A chair characterized by comprising The reversing mechanism includes an upright rotating portion that erects and tilts the seat portion around the front end side where the thigh is located, and a front and back reversing portion that inverts the seating surface of the seat portion that is erecting and tilting at the upright rotating portion. The chair according to claim 1, wherein the chair is provided. 2. The reversing mechanism comprises a slide rail that lifts upward while keeping the seat surface horizontal, and a mechanism that reverses the seat surface around a fastener that slides on the slide rail. The chair described in. The reversing mechanism includes an upright rotating portion that erects and tilts the seat portion around the rear end side where the collar portion is located, and a front and back reversing portion that inverts the seating surface of the seat portion erecting and tilting by the upright rotating portion. The chair according to claim 1, which is configured as described above. The reversing mechanism is configured so that the seating surface is turned upside down with the upright rotating part that erects and tilts the seat part around the rear end side where the collar part is located and the seat part that is erected and tilted by the upright rotating part to the front end side. The chair according to claim 1, comprising a front and back reversing part to be reversed.

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