The present invention relates to a grip belt and an imaging apparatus, and more particularly, to a grip belt that allows a user to hold a body portion of an imaging apparatus with a feeling of good holding and the imaging apparatus having the same.
An imaging apparatus to be used by holding a body portion of the imaging apparatus with a hand of a user by inserting the hand between the body portion and a grip belt, has been known. The grip belt has both ends supported at a front end and a rear end of the body portion in a front-back direction that is a direction of an optical axis of the body portion. Such an imaging apparatus is generally called a handy-type, which includes a still camera and a video camera, for example. Patent Literature 1 (Japanese Patent Application Laid-Open No. 2006-251177) describes an example of the video camera.
A conventional handy-type imaging apparatus has a grip belt supported at two points that are a front end and a rear end of a body portion. With the body portion held with a hand of a user, the center of gravity of the body portion is adequately isolated from the hand and is positioned above the support position of the grip belt, in general. For this reason, an upper part of the body portion is likely to move around the front-back direction toward a direction leaving from the hand. It is thus hard for the user to get a feeling of good holding that the body portion closely fits into the hand, and improvements described in Patent Literature 1 have been made.
In this situation, the shape of the body portion has recently changed with further miniaturization of the imaging apparatus and technical improvements of batteries. Specifically, a conventional battery was flat and had an approximately rectangular parallelepiped shape, which was mounted and arranged on the body portion at a portion against which a hand of a user is to be put. Instead, a battery, which has a pillar shape (for example, a column shape) extending in a front-back direction, has been recently installed. In case of applying a battery in the pillar shape, a side-protrusion at the portion of the body portion against which the hand is to be put becomes remarkable. Consequently, the center of gravity is positioned further away from the hand. This makes it more difficult to get the feeling of good holding than in the conventional case. Thus, further devising to hold the body portion with the feeling of better holding is desired.
An object of the present invention is to provide a grip belt that allows a user to hold a body portion with a feeling of better holding and an imaging apparatus having the same.
According to a first aspect of an exemplary embodiment, there is provided a grip belt including a first end from which the grip belt extends in a first direction, and a second end branching into a first belt portion and a second belt portion.
According to a second aspect of the exemplary embodiment, there is provided an imaging apparatus, including a body portion having an imaging element, and a grip belt connected to and supported on the body portion at a first connection portion on a front part of the body portion, a second connection portion on a lower rear part of the body portion, and a third connection portion on an upper rear part of the body portion, in a standard position in which a horizontal direction and a vertical direction in a pixel array of the imaging element are respectively made horizontal and vertical.
A grip belt and an imaging apparatus according to an exemplary embodiment of the present invention will be described by means of a grip belt 21 and a video camera 51, which are examples. First, a schematic configuration in appearance will be described with reference to
The video camera 51 includes a body portion 1, which is longitudinally elongated, and a grip belt 21, which is mounted on a side of the body portion 1, the side including a right side surface 2a4. In
In
As shown in
As shown in
An external shape of the contact portion 2b is an arc in a convex shape toward the right in a rear view shown in
H23<H12/2 (expression 1)
An external line of the contact portion 2b passing through the position P3 in the rear view in
The contact portion 2b extends in the front-back direction, which is from a front part of the housing 2 to a rear part of the housing 2 in this example. The contact portion 2b is formed to satisfy (expression 1) at any position in the front-back direction in the range of the extension.
As shown in
Next, the grip belt 21 will be described in detail. The grip belt 21 is connected to and supported on the housing 2 at three points, which are a connection portion R1, one point in the front part of the housing 2, and connection portions R2 and R3, two points in the rear part of the housing 2. Among these connection portions R1 to R3, the connection portion R2 is connected by a manufacturer, and the connection portions R1 and R3 are to be connected by a user who purchases the video camera 51.
The connection portion R1 is positioned on or near a front surface 2a 6, which is below an optical axis CL on the right side surface 2a4 of the housing 2. The connection portion R1 of the housing 2 is provided with a hook belt 2c to which the grip belt 21 is to be mounted by the user. As shown in
As obvious from
The connection portion R3 is positioned at a rear part of a ridgeline portion 2a7 connecting the upper surface 2a1 and the right side surface 2a4. The ridgeline portion 2a7 is a concave ridgeline, which is an internal corner, on the exterior shape of the video camera 51.
As shown in
The hook 2d is positioned behind the zoom switch 7. In detail, as shown in
In
The base portion 22 includes a branch portion 22a at a rear part thereof, at which the base portion 22 vertically branches into two. In detail, at the branch portion 22a, one of the two of the base portion 22 is connected to a lower connection belt 23, and the other of the two includes a separation upper portion 22g and is connected to an upper connection belt portion 24. The lower connection belt 23 extends with keeping a curvature of the base portion 22. The separation upper portion 22g is a portion branching off and extending upward. The upper connection belt portion 24 extends from the separation upper portion 22g.
In detail, the upper connection belt portion 24 branches upward at a branch angle θa with respect to the lower connection belt 23, which goes along an extending direction of the base portion 22. The branch angle θa is, for example, 60 degrees and is desirable to be 45 degrees or more (details will be described later). That is, the upper connection belt portion 24 extends in a direction orthogonal or oblique with respect to the extending direction of the base portion 22. A rear edge part 22a1 of the branch portion 22a of the base portion 22, which connects an upper edge of the lower connection belt 23 and a lower edge of the upper connection belt portion 24, is formed in an arc in a smooth convex shape, which is at the inside of the branch portion 22a.
The upper connection belt portion 24 and the lower connection belt 23 have flexibility in folding, and are made of a PET resin, for example.
The lower connection belt 23 has a tip part passed through an aperture 2e 1 of the bracket 2e to be folded back and fixed. This enables the bracket 2e to be held at the tip part of the lower connection belt 23.
The grip belt 21 has a pair of a male and a female of a hook-and-loop fastener attached at two areas. A first area is on a right surface 22s1 of the base portion 22 (the back side of the paper of
As shown in
By changing the length of the front end part 22e to be folded back, that is, by changing an engagement position of the first surface fastener 22b with respect to the second surface fastener 22c in the front-back direction, it is possible to adjust a distance of an extending surface in the grip belt 21 in the front-back direction to be short or long.
A second area is on the upper connection belt portion 24. A third surface fastener 24a, which is one of a male and a female of a hook-and-loop fastener, is attached on a left surface (the front side of the paper of
As shown in
As described above, the imaging apparatus 51 including the body portion 1 and the grip belt 21 mounted on the body portion 1 is held with a right hand f of the user in a holding state shown in
As shown in
Moreover, when an upper part of the body portion 1 is likely to move around the front-back direction toward a direction leaving from the right hand f holding the body portion 1, it is possible to suitably shorten a distance between the connection portion R3 and the right hand f by adjusting the length of the upper connection belt portion 24 to be folded back. This prevents the body portion 1 from moving and enables the body portion 1 to closely fit to the right hand f. To pull out the right hand f downward at the end of holding, it is only needed to reduce the amount of folding back at the connection portion R1 to loosen the grip belt 21. It is not needed to adjust the folding back of the upper connection belt portion 24.
As shown in
Under this holding state, the grip belt 21 is connected to the housing 2 at three points, the connection portion R1 at a front lower part of the housing 2, the connection portion R2 at a rear lower part of the housing 2, and the connection portion R3 at a rear upper part of the housing 2. The distance of the extending surface between the connection portion R1 and the connection portion R2 of the grip belt 21 is adjusted by the amount of folding back of the front end part 22e of the base portion 22. This enables the right hand f holding the body portion 1 to be put against the contact portion 2b with an appropriate pressing force.
A distance of an extending surface between the base portion 22 of the upper connection belt portion 24 and the connection portion R3 is adjusted by an increase or a decrease of the amount of folding back at the hook 2d. This prevents the housing 2 from moving in a counterclockwise direction (arrow DRb) around the center of gravity G shown in
As described above, the upper connection belt portion 24 is provided to branch from the base portion 22 upward with respect to the extending direction of the base portion 22. For this reason, the adjustment of the distance of the extending surface between the base portion 22 and the connection portion R3 on the upper connection belt portion 24 does not have a great impact on the force pressing the back of the hand, which corresponds to tension obtained by adjusting the distance of the extending surface in the base portion 22. That is, it is substantially possible to separately adjust a feeling of pressing against the contact portion 2b for the right hand f, and a feeling of following and a feeling of close fitting to the right hand f by making the body portion 1 non-movable. This enables the user to obtain a feeling of better holding.
As shown in
As shown in
As described above, the rear edge part 22a1 of the grip belt 21 is formed in an arc hollowed toward the front end part 22e of the base portion 22. The rear edge part 22a1 thus extends not in an orthogonal direction, instead but along a direction in which the thickness of the right hand f increases at the root portion f1a to come into contact with the right hand f. This prevents the rear edge part 22a1 from contacting the right hand f like biting into the right hand f, and makes the feeling of holding good.
The shape of the base portion 22 of the grip belt 21 is set as follows by virtually defining a line LN4 on the imaging apparatus 51 (see
That is, the line LN4 in
By forming the base portion 22 to include the line LN4, the grip belt 21 hardly has a deformation at the base portion 22, such as a bend and wrinkles. Moreover, the base portion 22 comes into surface-to-surface contact with the back of the right hand f. The user thus obtains a feeling of good holding of the body portion 1. Furthermore, the span of life of the grip belt 21 extends, and the grip belt 21 can be used for a longer term, as the base portion 22 is not hardly deformed.
In the right side view in
Here, an influence of tension T3 on the tension T1 and the tension T2 is considered, which is applied at the connection portion R3 on the grip belt 21. The tension T3 is a force in the direction along the line LN5. As the angle θb is made larger (closer to 90 degrees), a branch force of the tension T3 along the line LN4 becomes smaller, and the influence on the tension T1 and the tension T2 also becomes smaller. At the same time, the influence of the tension T1 and the tension T2 on the tension T3 also becomes smaller. That is, as the angle θb, that is the branch angle θa, is made closer to 90 degrees, the degree of tension at the upper connection belt portion 24 is not hardly changed by the degree of tension at the base portion 22, which is preferable.
For the angle θb, it is necessary to provide the branch portion 22a with a considerable amount of hollow for inserting the thumb f1. Moreover, it is necessary to prevent the upper connection belt portion 24 from interfering with the index finger f2 operating the zoom switch 7. For these reasons, the angle θb cannot be brought closer to 90 degrees excessively, and a preferable range is naturally defined. As a result of consideration, when the angle θb is defined approximately in the range of 45 degrees to 70 degrees, the shape of the branch is formed without unreasonableness and an effect of the tension is obtained, which is preferable.
As shown in
The group of middle finger joints fa is a group of parts partially protruding because the four fingers excluding the thumb f1 are bent to put on the upper surface 2a1 (including the zoom switch 7) of the housing 2 to hold the body portion 1 with the right hand f. The base portion 22 of the grip belt 21 thus has a shape avoiding the group of middle finger joints fa not to cover the group of middle finger joints fa. This releases the group of middle finger joints fa and does not give a feeling of oppression on the right hand f. The user thus obtains the feeling of good holding in holding the body portion 1.
As shown in
The above-described embodiment is not limited to the above-noted configuration and may be made as modified example varied within a scope not deviating from the gist of the present invention.
For example, the grip belt 21 may be a grip belt 21A in a first modified example shown in
For the grip belt 21A, tan angle θbA between a line LN4A and a line LN5A corresponding to the line LN4 and the line LN5 of the grip belt 21 in the exemplary embodiment (see
For example, the grip belt 21 may be a grip belt 21B in a second modified example shown in
For the grip belt 21B, a line LN4B corresponding to the line LN4 of the grip belt 21 in the exemplary embodiment inclines upward. Thus, it is not as easy as in the grip belts 21 and 21A to adjust the length of the grip belt 21B for the right hand f. Moreover, with a rise of the position of the connection portion R1, a position of an upper edge part 22Bf of the base portion 22B necessarily shifts upward, thereby having a possibility that the base portion 22B covers the group of middle finger joints fa. In this view, the grip belts 21 and 21A are preferable.
The imaging apparatus 51 is not limited to a video camera to take a moving image and a still camera to take a still image. It is only required that the imaging apparatus 51 is an apparatus to be held with a hand of a user to take an image. The zoom switch 7 and the recording button 8 may not be disposed on the above-described respective positions. The method of mounting the grip belt 21 on the housing 2 at the connection portions R1 to R3, and the determination as to whether or not a user can mount at the connection portions R1 to R3 are not limited to the above-described case. The adjustment of the distance of the extending surface in the grip belt 21 is not limited to the engagement by the surface fastener in the above-described embodiment. It may be by a buckle that is adjustable for length. Moreover, the grip belt 21 itself may be formed of a stretchable rubber material, thereby fitting on the hand by its stretch without depending on the adjustment of the length by the surface fastener or the buckle.
In the exemplary embodiment and respective examples, the imaging apparatus 51 provided with one of the grip belts 21, 21A, and 21B on the right side surface to hold the body portion 1 with the right hand f is described. As a symmetrical shape, a grip belt to hold the body portion 1 with a left hand and an imaging apparatus provided with the grip belt may be described.
As described above, according to the present exemplary embodiment, it is possible to hold the body portion with a feeling of better holding.
Number | Date | Country | Kind |
---|---|---|---|
2016-242247 | Dec 2016 | JP | national |
This application claims benefit of priority under 35 U.S.C. §119 to Japanese Patent Application No. 2016-242247, filed on Dec. 14, 2016, the entire contents of which are incorporated by reference herein.