JP2023031176A - Rocking play equipment - Google Patents

Abstract

To provide rocking play equipment which generates no impact force, which has excellent ride comfort, which hardly causes breakage and deterioration in components through an extended period, and which does not require a long time for maintenance, inspection, and replacement work.SOLUTION: A piece of rocking play equipment 1 is composed of a platform 2, a platform support frame 3, a rocking mechanism 4, and a support medium 5. The rocking mechanism 4 is structured with a fixed link 41, two rocking links 42, 43, and a movable link 44. The fixed link 41 is fastened to the upper end face of a post 52 of the support medium 5 while the movable link 44 is anchored in the center of a horizontal rod 33 of the platform support frame 3. The rocking links 42, 43 are pivotally attached, with intermediate parts 42b, 43b placed on both front and rear sides of the fixed link 41, and are pivotally attached, with lower end parts 42c, 43c placed on both front and rear sides of the movable link 44. Further, through a front-side cylindrical body 45a and a rear-side cylindrical body 45b that are installed on the upper end parts 42a, 43a, a sliding shaft body 47 is freely slidably inserted, with an elastic energizing member 48 externally jacketed and arranged on the sliding shaft body 47.SELECTED DRAWING: Figure 2

Description

TECHNICAL FIELD The present invention relates to a rocking playground equipment installed in parks, squares, nursery schools, kindergartens, etc., with which young children can play safely and happily.

In facilities where children play, such as parks, squares, nursery schools, and kindergartens, various types of playground equipment such as swings, seesaws, slides, horizontal bars, and sandboxes are installed. Among these, rocking playground equipment in the form of animals such as foals and giraffes, vehicles such as automobiles and trains, which young children can ride alone, rocks up and down, back and forth, left and right, etc. It is one of the popular toys for young children, especially infants, because they can enjoy movements that they cannot experience.

As such a rocking toy, a base plate 2 is disposed at the tip of a vertically installed support 1, and a rotation shaft support 3 is vertically provided at the center of this base plate 2, and this rotation shaft support 3 swings. A rocking playground equipment is known in which springs 7, 7 are arranged on the front and rear portions of the base board 2 to pivotally support the frame 4 and elastically support the rocking frame 4 from below (see Patent Document 1).

A base 7 is provided at the tip of a vertically installed support column 4, two swing arms 8 and 9 are pivotally attached to the front and rear portions of the base 7, and fixed side cushioning members 12a and 12b are attached to the base 7. Also known is a rocking toy in which rocking-side cushioning members 11a and 11b are arranged on the rocking arms 8 and 9 so as to regulate the range of rotation angles of the rocking arms 8 and 9 (Patent Document 2). 2).

Utility Model Registration No. 3210637 JP 2010-022394 A

The rocking toy described in Patent Document 1 has springs 7, 7 arranged in the front and rear portions that provide a cushioning effect when the platform 31 is rocked back and forth and a repulsive force when returning to the normal state. However, if the rocking toy is used for a long period of time, there is a risk that the springs 7, 7 will be damaged and deteriorated.

Therefore, it is necessary to periodically check the state of damage and deterioration of the springs 7, 7, and replace them as the case may be. Since it is housed in the spring case 6, there is a problem that maintenance, inspection, and replacement work take time.

On the other hand, in the swing toy described in Patent Document 2, the cushioning effect when the upper object 2 is swung back and forth is performed by the fixed-side cushioning members 12a and 12b and the swing-side cushioning members 11a and 11b. However, since the cushioning members collide with each other, an impact force is inevitably generated, and the cushioning action is insufficient, resulting in a problem of poor riding comfort.

In addition, since the fixed side cushioning members 12a and 12b are provided on the base 7 and the swinging side cushioning members 11a and 11b are provided on the swinging arms 8 and 9, the number of parts is large. In order to check the state of breakage and deterioration of these parts, it is necessary to partially disassemble the mechanism.

The present invention has been made in view of such conventional problems. When a rocking toy is rocked back and forth, no impact force is generated, the riding comfort is good, and the cushioning effect and To reduce parts and work costs by applying a repulsive force with as few parts as possible, and to prevent parts from being damaged or deteriorated even if a rocking playground equipment is used for a long period of time, making it suitable for maintenance, inspection and replacement work. To provide a rocking playground equipment that does not require much time.

To achieve the above object, the swing toy of the present invention comprises a platform, a platform support frame for supporting the platform, a swing mechanism for swinging the platform back and forth, and the swing mechanism. a support for supporting the
The rocking mechanism is a four-link mechanism composed of a fixed link, two rocking links, and a moving link, wherein the fixed link is fixed to the upper end surface of the column of the support, The movable link is fixed to the central portion of the horizontal rod of the platform support frame, the intermediate portion of the rocking link is pivotally attached to fulcrums on both front and rear sides of the fixed link, and the lower end thereof is connected to the movable link. are pivotally attached at fulcrums on both front and rear sides of the two rocking links, and a front side cylinder and a rear side cylinder are respectively connected and disposed between the upper end portions of the two rocking links,
A holding member is arranged across the front side cylinder and the rear side cylinder, and a sliding shaft is slidably inserted through the front side cylinder, the rear side cylinder, and the holding member. It is characterized in that an elastic force urging member is mounted on the driving shaft body.

Here, the elastic force biasing member may be a compression spring or elastic rubber.

According to the rocking toy of the present invention, no impact force is generated when the rocking toy is rocked back and forth, the riding comfort is good, and the cushioning action and repulsive force are imparted with as few parts as possible. As a result, parts and work costs are reduced, and even if the rocking playground equipment is used for a long period of time, the parts are less likely to be damaged or deteriorated, and maintenance, inspection and replacement work do not take much time.

It is a front view of the rocking toy of the present invention. (A) is a plan view, (B) is a front view, and (C) is a side view of the swing mechanism of the present invention. (A) of the rocking mechanism shown in FIG. 2 is an enlarged plan view, and (B) is a sectional view taken along the line XX. FIG. 3 is a front view of a state in which the swing mechanism shown in FIG. 2 is swung backward; FIG. 2 is a front view of the rocking toy shown in FIG. 1 in a state of being rocked forward; Fig. 2 is a front view of the swing toy shown in Fig. 1 in a state of being swung backward;

BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment of the swing toy of the present invention will be described in detail below with reference to the drawings.

A rocking toy 1 of the present invention comprises a platform 2, a platform support frame 3, a rocking mechanism 4, and a support 5, as shown in FIG.

The platform 2, as shown in FIG. The player sits on the floor and holds the holding rod 22 with both hands to play.

When the child tilts the upper body forward and shifts the center of gravity forward, as shown in FIG. 5, the platform 2 swings forward, tilts the upper body backward, and moves the center of gravity backward. Then, as shown in FIG. 6, the platform 2 swings backward, so that the user can enjoy vertical and longitudinal movements that cannot be experienced in everyday life.

In this embodiment, as shown in FIG. 1, the platform 2 is in the form of a foal. A form of a vehicle such as an animal, an automobile, or a train may be adopted.

As shown in FIG. 1, the platform support frame 3 includes a vertical rod 31 that supports the lower front part of the platform 2,
It is composed of a vertical rod 32 that supports the rear portion of the lower end of the platform 2 and a horizontal rod 33 that connects the vertical rods 31 and 32 .

As shown in FIG. 2, the rocking mechanism 4 is a four-link mechanism including a fixed link 41, rocking links 42 and 43, and a moving link 44. A cylindrical holding member 46 is disposed between the upper ends of the.

As shown in FIGS. 1 and 2, the fixed link 41 is a rod-shaped member having a U-shaped cross section, and is fastened and fixed to the upper end surface of the support 52 of the support 5 with bolts and nuts.

As shown in FIGS. 1 and 2, the moving link 44 is a rectangular plate-like member, which is fastened and fixed to the central portion of the horizontal rod 33 of the platform support frame 3 with bolts and nuts.

As shown in FIG. 2, the rocking links 42 and 43 are plate-shaped members arranged on both front and rear sides of the fixed link 41, and are arc-shaped from intermediate portions 42b and 43b to lower end portions 42c and 43c. , the intermediate portions 42b, 43b to the upper end portions 42a, 43a are formed in a linear shape.

As shown in FIG. 2, intermediate portions 42b and 43b of the rocking links 42 and 43 are pivoted at fulcrums E2 and E3 on both front and rear sides of the fixed link 41. are pivoted at fulcrums F2 and F3 on both front and rear sides of the . The distance M between the fulcrums E2 and E3 is set slightly longer than the distance N between the fulcrums F2 and F3.

Therefore, when the child tilts the upper body backward and moves the center of gravity backward, as shown in FIG. Conversely, if the child tilts the upper body forward and moves the center of gravity forward, the lower ends 42c and 43c of the swing links 42 and 43 swing forward, and the moving link 44 moves forward. It is designed to move to

As shown in FIG. 2, upper ends 42a and 43b of the rocking links 42 and 43 are connected and pivotally supported by a front cylinder 45a and a rear cylinder 45b. are fulcrums D2 and D3 of the upper ends 42a and 43b of the . The distance L0 between the fulcrums D2 and D3 is set slightly longer than the distance M between the fulcrums E2 and E3.

Further, as shown in FIGS. 2 and 3, a cylindrical holding member 46 is provided between the central portions of the front tubular body 45a and the rear tubular body 45b, and the front tubular body 45a and the rear tubular body 45b are provided. A sliding shaft 47 is slidably inserted through the body 45 b and the holding member 46 .
Nuts are screwed to both ends of the sliding shaft 47 so that the sliding shaft 47 does not move axially from the front cylindrical body 45a or the rear cylindrical body 45b. It is regulated.

An elastic force urging member 48 is mounted on the slide shaft 47 between the front cylinder 45a and the rear cylinder 45b. They are designed to come into contact with each other.

Here, the elastic force biasing member 48 may be a compression spring or an elastic rubber. It is preferable to use a material having excellent weather resistance and water resistance.

The rocking toy 1 of the present invention is configured as described above and has the following functions, actions and effects.

When the child tilts the upper body backward and moves the center of gravity backward, as shown in FIG. Conversely, if the child tilts the upper body forward and moves the center of gravity forward, the lower ends 42c and 43c of the swing links 42 and 43 swing forward, and the moving link 44 moves forward. do.

During rocking, as shown in FIGS. 2 and 3, the slide shaft 47 slides in the front cylinder 45a and the rear cylinder 45b. The distance L1 between D2 and D3 is shorter than the distance L0 between the fulcrums D2 and D3 in normal times.

When the distance L1 between the fulcrums D2 and D3 of the upper ends 42a and 43b of the swing links 42 and 43 becomes shorter than the distance L0 between the fulcrums D2 and D3 in the normal state, the elastic member provided on the sliding shaft 47 The force biasing member 48 is pressed against the retaining member 46 and becomes compressed.

Therefore, when the rocking toy 1 is rocked back and forth, the elastic repulsive force of the elastic force urging member 48 produces a cushioning action, and the impact force is not generated. is provided, the child does not need to make a large movement to swing the swinging toy 1 in the opposite direction. Also, since the repulsive force improves the swinging motion, the child will be more entertained.

The support 5 is composed of a base 51 and a support 52, as shown in FIG. etc., and fastened to a firm installation surface with bolts, nuts, etc., so that they are securely fixed. The platform 2, the platform support frame 3, and the rocking mechanism 4 are arranged above the column 52 as described above.

The rocking toy 1 of the present invention has the above-described configuration and functions, so that the following actions and effects can be obtained when young children use and play with it.

First, a young child is put on the seat 21 of the platform 2 of the rocking toy 1 by being carried by a parent or the like. Then, the child surely straddles the seat part 21 and grasps the grip rod 22 with both hands so that the swing toy 1 does not fall even if it swings.

When the child tilts the upper body forward and moves the center of gravity forward, as shown in FIG. tilts forward, the platform support frame 3 swings forward, and eventually the platform 2 swings forward.

At this time, the sliding shaft 47 slides in the front cylinder 45a, the rear cylinder 45b and the holding member 46, and moves between the fulcrums D2 and D3 of the upper ends 42a and 43b of the rocking links 42 and 43. Since the distance L1 is shorter than the distance L0 between the fulcrums D2 and D3 in the normal state, the elastic force biasing member 48 is compressed, and the elastic repulsive force produces a cushioning effect. Therefore, no impact force is generated, and the riding comfort is improved.

Next, when the child tilts the upper body backward and moves the center of gravity backward, as shown in FIG. tilts rearward, the platform support frame 3 swings rearward, and eventually the platform 2 swings rearward.

At this time, the sliding shaft 47 slides in the front cylinder 45a, the rear cylinder 45b and the holding member 46, and moves between the fulcrums D2 and D3 of the upper ends 42a and 43b of the rocking links 42 and 43. Since the distance L1 is shorter than the distance L0 between the fulcrums D2 and D3 in the normal state, the elastic force biasing member 48 is compressed, and the elastic repulsive force produces a cushioning effect. Therefore, no impact force is generated and the riding comfort is improved.

As described above, according to the rocking toy 1 of the present invention, when the rocking toy 1 is rocked back and forth, the elastic repulsive force of the elastic force urging member 48 generates a cushioning effect, so that the impact is reduced. No power is generated and the ride is comfortable. Also, since the elastic repulsive force of the elastic force urging member 48 causes a repulsive action, the swing toy 1 can be smoothly swung from the front to the rear.

In addition, since the cushioning action and the rebounding action are imparted with as few parts as possible, such as the sliding shaft 47 and the elastic force urging member 48, the cost of the parts is reduced and at the time of mounting, maintenance, replacement, etc. Operation costs are also reduced.

Furthermore, the shock absorbing action and the repulsive action are provided by simple parts such as the sliding shaft body 47 and the elastic force biasing member 48, and a large impact force is not applied to these parts. Even if the moving toy 1 is used for a long period of time, the parts are not easily damaged and hardly deteriorate. In addition, it does not take much time for maintenance, inspection and replacement work.

1 Swing play equipment 2 Platform 3 Platform support frame 33 Horizontal rod 4 Swing mechanism 41 Fixed link 42 Swing link 42a Upper end 42b Intermediate part 42c Lower end 43 Swing link 43a Upper end 43b Intermediate part 43c Lower end 44 Movement Link 45a Front side cylinder 45b Rear side cylinder 46 Holding member 47 Sliding shaft 48 Elastic force biasing member 5 Support 52 Support pillar D2 Support point D3 Support point E2 Support point E3 Support point F2 Support point F3 Support point

Claims (3)

A platform comprising a platform, a platform support frame that supports the platform, a rocking mechanism that rocks the platform back and forth, and a support that supports the rocking mechanism,
The rocking mechanism is a four-link mechanism composed of a fixed link, two rocking links, and a moving link, wherein the fixed link is fixed to the upper end surface of the column of the support, The movable link is fixed to the central portion of the horizontal rod of the platform support frame, the intermediate portion of the rocking link is pivotally attached to fulcrums on both front and rear sides of the fixed link, and the lower end thereof is connected to the movable link. are pivotally attached at fulcrums on both front and rear sides of the two rocking links, and a front side cylinder and a rear side cylinder are respectively connected and disposed between the upper end portions of the two rocking links,
A holding member is arranged across the front side cylinder and the rear side cylinder, and a sliding shaft is slidably inserted through the front side cylinder, the rear side cylinder, and the holding member. A rocking playground equipment characterized in that an elastic force urging member is mounted on a moving shaft body. 2. The rocking toy according to claim 1, wherein said elastic biasing member is a compression spring. 2. The rocking toy according to claim 1, wherein said elastic force biasing member is made of elastic rubber.

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